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V e n t i l a t o r w i t h F l o w A c c e l e r a t i o n L i m i t
Achieva Technical Manual
a n d A p n e a B a c k u p
Achieva®, Nellcor Puritan Bennett®, and Puritan-Bennett® are registered trademarks of Nellcor Puritan Bennett Incorporated.
For further information, contact your Puritan-Bennett representative, or contact Nellcor Puritan Bennett directly by calling 1.800-NELLCOR
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Achieva Ventilator Technical Manual
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Chapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Warranty considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Tools and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Features of Achieva Ventilators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Top panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6Display and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Back and sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Breath types and ventilation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16Volume breaths in assist/control mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16Continuous Positive Airway Pressure (CPAP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30Standard compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37FCC Part 68 information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Ventilation equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Calibration of test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
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Qualifications of test personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Standard ventilation parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Pneumatic test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Power system checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9Assist/control ventilation mode checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11SIMV ventilation mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14Pressure-controlled ventilation mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16Pressure support mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17Achieva ventilator operational checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Theory of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Pneumatic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3System control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Micro-controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5System memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Real-time clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Motor drive control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6System analog monitoring circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6System analog control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8Micro-controller I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9System power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Power system control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Cleaning ventilator surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Replaceable parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Flatpak filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4Changing the fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5Periodic maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
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Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Appendix: Oxygen Adapter Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Canadian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Dräger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2Australian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3NIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4UK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5French. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
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Figures
Schematics
DrawingsFigure 2-1: Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Figure 2-2: Top panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6Figure 2-3: Display and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Figure 2-4: Rear and side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Figure 2-5: Volume Breaths in Assit/Control Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17Figure 2-6: Controlled (machine) Breath Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19Figure 2-7: Pressure Control in Assist/Control Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21Figure 2-8: Mandatory Volume Breaths in SIMV Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23Figure 2-9: Spontaneous Breaths Assisted with Pressure-supported Breaths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25Figure 2-10: Supported Breaths Maintain Selected Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27Figure 2-11: Continuous Positive Airway Pressure (CPAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29Figure 3-1: Front panel view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Figure 3-2: Blocking exhalation manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7Figure 4-1: Pneumatic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Figure 4-2: Block diagram of control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Figure 4-3: Power supply inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10Figure 5-1: Replacing Flatpak filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4Figure 5-2: Removing fuse holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Figure 5-3: Replacing fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7Schematic 6-1: Logic board—notes for schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Schematic 6-2: Logic board—microprocessors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3Schematic 6-3: Logic board—memory/address select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4Schematic 6-4: Logic board—switch inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5Schematic 6-5: Logic board—LED indicators/controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6Schematic 6-6: Logic board—miscellaneous digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7Schematic 6-7: Logic board—alarm and monitor circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8Schematic 6-8: Logic board——communications driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9Schematic 6-9: Logic board—pressure sensor circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10Schematic 6-10: Logic board—flow sensor circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11Schematic 6-11: Logic board—primary ADC circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12Schematic 6-12: Logic board—serial ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13Schematic 6-13: Logic board—serial ADC circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14Schematic 6-14: Logic board—DAC circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15Schematic 6-15: Logic board—connectors and EMI filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
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Schematic 6-16: Logic board—connectors and modem port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17Schematic 6-17: Power board schematic notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18Schematic 6-18: Power board—motor drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19Schematic 6-19: Power board—power On/Off circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20Schematic 6-20: Power board—switching power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21Schematic 6-21: Power board—system power entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22Schematic 6-22: Miscellaneous Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23Schematic 6-23: Power board—connectors and EMI filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24Drawing 6-1: Ventilator assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25Drawing 6-2: Ventilator assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26Drawing 6-3: Rear panel assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27Drawing 6-4: Right end assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28Drawing 6-5: Right end assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29Drawing 6-6: Front panel assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30Drawing 6-7: Piston assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31Drawing 6-8: Manifold assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32Drawing 6-9: Power supply assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
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Tables
Table 1-1: Recommended Equipment and Suppliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 3-1: Equipment and Recommended Supplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Table 3-2: Standard Ventilation Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Table 3-3: Power system checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Table 3-4: Assist/Control ventilation mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Table 3-5: SIMV mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Table 3-6: Pressure-controlled mode checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Table 3-7: Pressure support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Table 4-1: Power sources and priority levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
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Achieva Ventilator Technical Manual
Chapter 1: Introduction
This technical manual provides procedures for testing and maintaining the Achieva model volume ventilators. It is not intended to be a complete maintenance document; therefore, it contains no disassembly, repair, or reassembly instructions.
Refer any repairs or adjustments that exceed the scope of this manual to a Puritan BennettTechnical Support Representative by calling:
800.255.6774
This manual contains proprietary information. It is intended for use only by individualsqualified in the installation and maintenance of the Achieva ventilators. Receipt, purchase, orpossession of this document in no way confers or transfers any other rights for the use of thisinformation. Disclosure or reproduction of the enclosed, without the written permission ofPuritan Bennett, is prohibited.
This manual is intended for use only by technicians who have successfully completed PuritanBennett training on this product.
Puritan Bennett believes the information herein is accurate but accepts no responsibility forerrors, omissions, or misrepresentation.
PURITAN-BENNETT CORPORATION FURTHER DECLINES ANY WARRANTIES,EXPRESSED OR IMPLIED, FOR THE REPAIRED PRODUCT, INCLUDING ANYWARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE.
It is the user’s responsibility to ensure that the product has been properly repaired and that it isin safe and proper operating condition before it is put into use.
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Chapters
This manual consists of the following sections:
1 Introductio: Discusses the purpose of the manual, gives an overview of the contents of thevarious chapters, and describes the conventions used for warnings, cautions, and notes.
2 Description: Provides a description of the systems, features, controls, and labels on theAchieva ventilators. Also included is a description of the ventilation modes and a table oftechnical specifications.
3 Testing: Provides procedures for verifying the correct operation of the ventilator.
4 Theory of operation: Provides a description of the systems and principles that make theventilator operate.
5 Maintenance: Provides cleaning and maintenance information, a list of user-replaceableparts, and a maintenance schedule.
6 Schematics: Provides electrical schematic diagrams of the ventilator’s circuitry. Providesexploded views of the ventilator and lists of its components.
7 Service: Provides service and limited warranty information.
Appendix: Information regarding the oxygen adapter assembly.
Index: An alphabetical list of topics, and their locations, in this manual.
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Conventions
Throughout this manual, Warnings, Cautions, and Notes mean the following:
WarningIndicates a condition that can place the patient, caregiver, or otherindividuals at risk of injury.
CautionIndicates a condition that can damage the equipment.
NoteIndicates points of particular emphasis that make the operation of the ventilator more efficientor convenient.
Warranty considerations
Do not make any service repairs on this equipment during the stated warranty period. Anyunauthorized work immediately voids the warranty. Puritan Bennett will not be liable for anyrepairs attempted by the owner. Any such attempted repairs other than specified non-warrantyrepairs void the warranty.
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Tools and equipment
The following tools and equipment will be needed for the tasks listed.
Table 1-1: Recommended Equipment and Suppliers
Task Equipment Recommended Supplier
Monthly verification Achieva Ventilator Opera-tional Checklist
Photocopy last page of Chap-ter 3
Ventilation mode checkout Respirometer (hand-held) Wright
Fraser-Harlake
Ferrairs Medical
Stop Watch Any
Changing fuses Small slotted screwdriver Any
Fuses Any 5 x 20 mm, 250V, 3.15A slow blow
Power switchover test External battery and cable Puritan Bennett
Cleaning Mild detergent Any
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Achieva Ventilator Technical Manual
Chapter 2: Description
This chapter describes the systems, features, controls, and labels on the Achieva ventilators. Also included is a description of the ventilation modes and a table of technical specifications.
Overview
Indications for Use
The Achieva Ventilator is intended to provide ventilatory support for pediatric and adultpatients who require positive pressure mechanical ventilation. Patients should weigh no lessthan 11 pounds (5 kg). The ventilator is for use in home, institutional, and non-emergencytransport settings.
Contra-Indications
Achieva ventilators are not intended for the delivery of anesthetic gases.
CautionDo not use or store in the presence of strong electromagnetic fields such as thosesurrounding MRI equipment.
General description
The Achieva Portable Volume Ventilator with Flow Acceleration Limit and Apnea Back Upis an electro-mechanical device used to assist a patient's respiratory efforts. It consists of fourmajor subsystems: AIR DELIVERY; POWER MANAGEMENT; USER INTERFACE; and SYSTEM
CONTROL.
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Air delivery The AIR DELIVERY subsystem filters and delivers the prescribed amount of air to the patient.The air delivery subsystem consists of:
• a pump assembly • a pneumatic porting assembly • a filter system
Power management
The POWER MANAGEMENT subsystem manages the power distribution for the ventilator andconsists of five elements:
• an internal battery • an external battery (if used) • An AC line power source • an internal battery charger• a power system control function
The AC line power source is the primary source and should be used when available. Theexternal battery supplies power when the AC line source is disconnected. The internal batterysupplies power when no external power source is available. The internal battery chargermaintains the internal battery in a charged state (when an external power source is available).
User interface The USER INTERFACE subsystem enables the caregiver to change the operating and ventilationparameters, and it alerts the caregiver when an alarm condition exists. This subsystem consistsof two elements:
• the top panel, which has alarm and power indicators, two keys, and a pressure/batterycharge level meter
• the control/display panel, which has an alphanumeric display and keys that allow theoperator to control operational and ventilation parameters
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System controlThe SYSTEM CONTROL subsystem manages, monitors, and diagnoses the operation of the othersubsystems. The control subsystem has five functions:
• The monitoring function stores information for later retrieval. • The diagnostics function examines the ventilator operation for failures. • The air delivery control function orchestrates the delivery of air to the patient.• The interface control function enables communication between the unit and the
operator. • The power system control function manages the ventilator’s acquisition and distribu-
tion of electrical power.
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Features of Achieva VentilatorsThe Achieva ventilators are available in three models described in the table below. The modelnumber is indicated on the front door of the ventilator.
Achieva Achieva PS Achieva PSO2
Modes of Ventilation
ASSIST/CONTROL Yes Yes Yes
with PRESSURE CONTROL Capability Yes Yes Yes
SIMV Yes Yes Yes
with CPAP Yes Yes Yes
with PRESSURE SUPPORT No Yes Yes
Spontaneous (PRESSURE SUPPORT) No Yes Yes
with CPAP No Yes Yes
Dial-in PEEP (3-20 cmH2O) Yes Yes Yes
Flow Triggering Yes Yes Yes
Internal O2 Blender No No Yes
Internal Modem No Yes* Yes*
Access to Stored Events with the Report Generator Software
Yes Yes Yes
Pediatric Capability Yes Yes Yes
Internal Battery Yes Yes Yes
External Battery Capability Yes Yes Yes
Portability Yes Yes Yes
* Available only in the U.S. and Canada
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Front view
Figure 2-1: Front view
A Top panel
B Door panel
C Patient pressure port
D Patient air port
E Exhalation valve port
F Patient pressure meter
F
D
B
A
C
E
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Top panel
Figure 2-2: Top panel
A ALARM INDICATORS
The corresponding alarm indicator will flash when an alarm condition is detected. Theindicators are turned off when the alarm condition is corrected and the ALARM SILENCE/RESET key is pressed. The Achieva ventilators are equipped with the following alarm indicators:• LOW PRESSURE/APNEA
• HIGH PRESSURE
• SETTING ERROR
• POWER SWITCHOVER
• LOW POWER
• O2 FAIL (Only on Achieva PSO2)
A
B
C D
E
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B POWER LightsThe power lights indicate which electrical source the ventilator is currently using andwhether the internal battery is being charged. The power lights include• A.C.• EXTERNAL BATTERY
• INTERNAL BATTERY
• BATTERY CHARGING
C Alarm Control LightThe ALARM CONTROL light flashes when the audible alarm has been presilenced. TheALARM CONTROL light will light continuously when the nonlatching audible alarmfeature is active.
D ASSIST/SPONTANEOUS LightThe ASSIST/SPONTANEOUS indicator lights each time the patient’s effort is greater thanthe sensitivity setting.
E PATIENT PRESSURE METER
The PATIENT PRESSURE meter shows the level of pressure that is currently in the patientcircuit.
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Display and controls
Figure 2-3: Display and controls
The CONTROL/DISPLAY panel consists of • an alphanumeric display that shows current operating parameters and ventilator infor-
mation • push-button keys that the operator uses to make selections
The CONTROL/DISPLAY panel is located behind the ventilator’s front door panel.
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Following is a description of the keys’ functions.
STANDBY
Use the STANDBY key to place the ventilator in the standby mode, a state where no air isbeing delivered and the internal battery is being charged.
VENTILATE
Use the VENTILATE key to deliver air to the patient.
MENU/ESC
The MENU/ESC key activates the menu options on the ventilator’s display.
UP and DOWN arrow keys
The up and down arrow keys operate in three ways:• When a ventilation parameter is flashing, use the up/down keys to scroll to the
required setting.• When the MENU/ESC button has been pushed, use the up/down keys to scroll to the
required menu.• Pressing the up/down keys when neither a menu nor a parameter is active will cause
the last alarm message to be displayed.
START/ENTER
When the ventilator is in Standby, pressing the START/ENTER key will activate the dis-play. The START/ENTER key is also used to accept the currently flashing parameter as thenew setting.
CautionBefore pressing the Start/Enter key, check all parameters for appropriateness.
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MODE
The MODE section of the display screen shows the current ventilation mode setting.Pressing the MODE key causes the current mode on the display to flash and allows theventilation mode to be changed.
VOLUME
The VOLUME section of the display screen shows the volume of air that is set to be deliv-ered to the patient’s lungs during volume breaths. Pressing the VOLUME key causes thecurrent volume setting to flash and allows it to be changed.
INSPIRATORY FLOW ACCELERATION LIMIT
Selecting the INSPIRATORY FLOW ACCELERATION LIMIT in the menu key permits controlduring a pressure-supported or a pressure-controlled breath. When this feature is ON, theactual flow rate during the inspiratory phase of a pressure-supported or a pressure-con-trolled breath cannot exceed 180 LPM.
INSPIRATORY TIME
The INSPIRATORY TIME section of the display screen shows the length of time it takes theventilator to deliver the volume breaths and pressure control breaths to the patient.Pressing the INSPIRATORY TIME key causes the current inspiratory time setting to flashand allows it to be changed.
FLOW
The FLOW section of the display shows the average air flow during setup and, ten sec-onds after ventilation begins, it shows the peak flow delivered to the patient. The calcu-lated value of the average air flow during setup is given in liters/minute.
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SENSITIVITY
During setup, the SENSITIVITY section of the display screen shows the value of the flowtrigger sensitivity setting; during ventilation, it displays what trigger criteria was met tocycle an assisted breath. Pressing the SENSITIVITY key causes the current sensitivity set-ting to flash and allows it to be changed.
NoteWhen using PEEP, set the Pressure Trigger in addition to SENSITIVITY (Flow Trigger). ThePressure Trigger setting can be accessed and changed as a menu option.
BREATH RATE
The BREATH RATE section of the display screen shows the rate at which volume andpressure control breaths are delivered. Pressing the BREATH RATE key causes the currentbreath rate setting to flash and allows it to be changed.
PRESSURE
The PRESSURE section of the display shows the pressure level maintained during a pres-sure-supported breath and the maximum pressure allowed during a pressure-controlledbreath. Pressing the PRESSURE key causes the current pressure support or pressure con-trol setting to flash and allows it to be changed.
The PEEP (Positive End Expiratory Pressure) section of the display screen shows thepressure maintained at the end of a delivered breath. Pressing the PEEP key causes thecurrent PEEP setting to flash and allows it to be changed. You should also set the pres-sure trigger when using PEEP. The pressure trigger will function relative to the PEEPsetting baseline. When using PEEP, use the pressure trigger along with sensitivity(Flow Trigger). The pressure trigger setting can be accessed and changed as a menuoption.
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LOW PRESSURE
The LOW PRESSURE limit section of the display shows the minimum pressure that mustbe exceeded to prevent a Low Pressure alarm. The Low Pressure alarm sounds after twoconsecutive cycles below the low pressure limit. The Low Pressure alarm sounds for aValley alarm after two consecutive breath cycles that do not fall below the low pressurelimit. Pressing the LOW PRESSURE key causes the current low pressure limit setting toflash and allows it to be changed.
Warning Some circuit components will defeat a Low Pressure alarm by keeping thepressure in the circuit above the alarm limit. Examples of these componentsinclude hydrated heat and moisture exchangers (HMEs), adapters, andtracheostomy tubes. If the patient circuit is disconnected from the patient,but still connected to these components, a Low Pressure alarm may notsound. See the Achieva Ventilator Clinician’s and User’s Manuals for details.
HIGH PRESSURE
The HIGH PRESSURE section of the display shows the highest pressure the ventilator willallow without sounding the High Pressure alarm and limiting the breath. Pressing theHIGH PRESSURE key causes the current high pressure limit setting to flash and allows itto be changed.
I:E RATIO
The I:E RATIO display shows the ratio of inspiratory to expiratory time. The Achievaventilators permit a range of inspiratory times from 0.2 seconds to 5.0 seconds. The I:Eratio is calculated according to this formula:
I:E Ratio = [(60/Breath Rate) - Inspiratory Time] / Inspiratory Time
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FIO2 (Only on Achieva PSO2)
The FIO2 display shows the set enriched oxygen level. Pressing the FIO2 key causes thecurrent FIO2 level setting to flash and allows it to be changed. A setting of over 21 willactivate the internal oxygen blender.
For the Achieva ventilator models that do not have the oxygen function, the FIO2 key ispresent, but it has no label and is inoperative.
NoteFlow and pressure measurements are displayed on the LCD screen of the ventilator. Flow ismeasured at the output port of the ventilator. These measurements must be corrected for alti-tude (using the ALTITUDE setting) and have an accuracy of ±2 LPM at nominal barometricpressures. Pressure measurements are taken at the patient end of the breathing circuit. Pres-sure measurements are relative to the current atmospheric pressure and have an accuracy of±2.5 cm H2O.
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Back and sides
Figure 2-4: Rear and side view
D
E
FG
C
B
A
J
I H
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A Inlet FilterFilters air as it enters the ventilator.
B Power Cord Connector
C External Battery Connector
D Side RailUsed for mounting some accessories on the ventilator.
E Audible Alarm Port (on side of ventilator)DO NOT BLOCK.
F Communications Connector (RS-232 Port)This connector is used to connect a printer, external modem, or a Report Generator-equipped computer directly to the ventilator. Follow the accessory manufacturer’sconnection instructions for the appropriate connection procedure.
G Nurse Call OutputThe ventilator can be connected to nurse call stations through this output.
H Remote Alarm ConnectorThe remote alarm cable plugs into the remote alarm cable jack on the back of theventilator. Be sure it is firmly in place. The cable slips in only if you have the button onthe end of the connector facing down. To remove the cable from the ventilator, press thebutton and pull the connector straight out.
I Modem Connector (only on Achieva PS and Achieva PSO2 in the US and Canada)A telephone cord is plugged into the ventilator’s modem connector. Insert the cord withthe tab facing down until you feel it click. Plug the other end of the cord into yourtelephone outlet.
J Oxygen Input Connection (only on Achieva PSO2)Connect the optional internal O2 blender to an oxygen source with a standard oxygenconnection hose. Screw the hose fitting tightly onto the oxygen input connection.
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Breath types and ventilation modes
Breath types available on the Achieva ventilators are:• volume breaths in ASSIST/CONTROL MODE
• pressure-controlled breaths in ASSIST/CONTROL MODE
• mandatory volume breaths in SIMV mode• pressure-supported breaths in SIMV or spontaneous MODES
• CPAP in SIMV or spontaneous modes
Volume breaths in assist/control mode
In ASSIST/CONTROL mode, with PRESSURE set to 0, each delivered breath will be of theselected VOLUME, delivered over the selected INSPIRATORY TIME. Inspiration is triggered bypatient-generated flow or pressure drop (for assisted breaths) or by the ventilator (forcontrolled breaths; BREATH RATE is the controlling parameter). For both controlled andassisted breaths, the inspiration is limited by the volume, and is cycled by volume and time.
See the waveforms, Figure 2-5.
Note • Paw = Peak airway pressure• V = flow• Vt = Tidal volume
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Figure 2-5: Volume Breaths in Assit/Control Mode
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ASSIST/CONTROl mode guarantees a maximum period between breaths, as determined by theBREATH RATE setting. In the waveform on the opposite page, the ventilator delivers acontrolled (machine) breath, and calculates the time before another controlled breath must bedelivered. The ventilator delivers a second controlled breath at the conclusion of thatmachine-calculated breath time (for simplicity, we will use the term period for “machine-calculated breath time”). Following the second controlled breath, but before another periodcan elapse, the patient’s effort triggers an assisted (or patient-initiated) breath. This restartsthe period. At the conclusion of the period, the ventilator delivers another controlled breath.
See the waveforms, Figure 2-6.
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Figure 2-6: Controlled (machine) Breath Delivery
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Pressure-control in assist/control mode
In ASSIST/CONTROL MODE, with PRESSURE set greater than 0, each delivered breath willmaintain the selected pressure over the selected INSPIRATORY TIME. Inspiration is triggered bypatient-generated flow or pressure drop (for assisted breaths) or by the ventilator (forcontrolled breaths; BREATH RATE is the controlling parameter). For both controlled andassisted breaths, the inspiratory pressure is limited to the PRESSURE setting, and is cycled bytime. See the waveforms on the facing page.
Inspiratory Flow Acceleration Limit and Expiratory Sensitivity
Inspiratory flow acceleration limit controls flow during a pressure-supported or pressure-controlled breath. By selecting the inspiratory Flow Acceleration Limit feature, the operatorcan control flow during pressure-supported and pressure-controlled breaths. The inspiratoryFlow Acceleration Limit feature has settings of ON or OFF. When the Flow AccelerationLimit feature is ON, the actual flow rate during the inspiratory phase of a pressure-supportedor a pressure-controlled breath cannot exceed 180 LPM.
The operator can also set the expiratory sensitivity level, which is a percentage of peak flow atwhich a pressure-supported breath will be terminated. The expiratory sensitivity level hassettings of 15% to 55% in 10% increments. However, do not adjust this setting while inASSIST/CONTROL MODE.
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Figure 2-7: Pressure Control in Assist/Control Mode
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Mandatory volume breaths in SIMV mode
In SYNCHRONIZED INTERMITTENT MANDATORY VENTILATION (SIMV), the mandatory volumebreaths deliver the selected volume over the selected inspiratory time. Inspiration is triggeredby patient-generated flow or pressure drop (for assisted breaths) or by the ventilator (forcontrolled breaths; BREATH RATE is the controlling parameter). For both controlled andassisted breaths, the inspiration is limited by the volume, and is cycled by volume and time.
See the waveforms on the next page, Figure 2-8.
SIMV mode will also assist spontaneous breaths with pressure-supported breaths.
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Figure 2-8: Mandatory Volume Breaths in SIMV Mode
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In SIMV mode, the ventilator delivers volume breaths, as determined by the BREATH RATE
setting, and spontaneous breaths are assisted with pressure-supported breaths.
In the waveforms on the opposite page, Figure 2-9, the breath in the first machine-calculatedbreath time is due to a lack of patient effort in the preceding machine-calculated breath time;that is, the first breath shown is actually associated with a preceding machine-calculatedbreath time (for simplicity, we will use the term period for “machine-calculated breath time”).The second breath shown is delivered because of the absence of patient effort in the firstperiod shown. Before the next period elapses, the patient initiates an assisted volume breath.Although it continues into the third period, it fulfills the requirements of the second period.The second patient-initiated volume breath fulfills the requirements of the third period.Therefore, the ventilator does not deliver another breath until the fourth period has elapsed.
The patient-initiated breath that starts in the fifth period fulfills the requirements for the fifthperiod. The first patient-initiated breath in period six fulfills the requirements for period six;therefore, the second patient-initiated breath in period six is delivered as a pressure-supportedbreath. Because of the patient activity in period six, no breath is delivered in period seven;therefore, a breath is delivered at the start of period eight to fulfill the requirements of periodseven.
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Figure 2-9: Spontaneous Breaths Assisted with Pressure-supported Breaths
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Pressure-supported breaths
In SIMV or SPONTANEOUS modes, the supported breaths maintain the selected pressure.Inspiration is triggered by patient-generated flow or pressure drop. When Flow AccelerationLimit is on, maximum flow is limited to 180 lpm. When Flow Acceleration Limit is off, themaximum flow is delivered and is cycled to expiration when the flow drops to the ExpiratorySensitivity setting (between 15% and 55% of peak flow in 10% increments).
In SIMV, additional mandatory volume breaths will be delivered, depending on the selectedBREATH RATE.
Pressure-supported breaths is available only on the Achieva PS and Achieva PSO2.
See the waveforms on the opposite page, Figure 2-10.
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Figure 2-10: Supported Breaths Maintain Selected Pressure
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Continuous Positive Airway Pressure (CPAP)
CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) is available in SIMV (all models) orSPONTANEOUS modes (Achieva PS and Achieva PSO2). PRESSURE must be set to 0. Theventilator maintains pressure at the selected PEEP over the entire breath cycle. Inspiration istriggered by patient-generated flow or pressure drop. Inspiration is limited by the pressure,and is cycled by the patient when the flow drops to the EXPIRATORY SENSITIVITY setting(between 15% and 55% of the peak flow).
In SIMV, additional mandatory volume breaths will be delivered, dependent on the selectedBREATH RATE.
See the waveforms on the next page, Figure 2-11.
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Figure 2-11: Continuous Positive Airway Pressure (CPAP)
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Specifications
Power
Power Line 100 to 240 VAC, 50 to 60 Hz
External DC Power See your ventilator’s back panel for specific voltage ranges.
Operating time: At least 19 hours under normal load, and 5.5 hours under heavy load* (24 VDC)
Internal Battery 24 VDC (nominal)
Operating time: At least 4 hours under normal load, and 1 hour under heavy load*
Gel cell, sealed Lead Acid, backup power
Lithium Battery, Memory power
Standard Power Converters 90 to 200 VAC
Fuses 250V, 3.15A, 5X20 mm, slow blow
Power Usage
Maximum 75 W
Minimum 10 W
Type Positive Pressure Volume ventilator
Motor 3-Phase Brushless Motor
Pump Piston, 50 ml to 2200 ml tidal volume capability
Protection against electricalshock
Type of protection: Class IDegree of protection: Type BF
*Normal Load: Mode = Assist/Control, Volume = 1000 ml, Breath Rate = 10 BPM, Inspiratory Time = 1.5 seconds, FIO2 = 21%, Sensitivity = 5 LPM, PEEP = 0 cmH2O/hPa, Vent pres.=30 cmH2O/hPa Heavy Load: Mode = Assist/Control, Volume = 1500 ml, Breath Rate = 20 BPM, Inspiratory Time = 1.0 seconds, FIO2 = 100%, Sensitivity = 5 LPM, PEEP = 20 cmH2O/hPa, Vent pres.=60 cmH2O/hPa
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Indicators
Normal Events
Patient Pressure Meter Displays patient pressure, -10 to + 100 cmH2O/hPa; also dis-plays battery charge when TEST BATTERY button is pressed.
Alphanumeric Display Shows current operating parameters and ventilator information.
Power Green LEDs indicate operating power source: AC, External Battery, Internal Battery.
Battery Charging Green LED indicates the unit is charging the internal battery.
Assist/Spontaneous Green LED indicates that the patient’s effort exceeds the sensi-tivity setting.
Alarm Control Red LED flashes at 1 second intervals during a presilence con-dition and continuously lights when the nonlatching alarm fea-ture is active.
Alarms Flashing red LEDs: Low Pressure/Apnea, Low Power, High Pressure, Setting Error, Power Switchover, O2 Fail (O2 Fail
available only on Achieva PS and Achieva PSO2).
Audible Alarms
One-Second Beep Relief Valve Test Failure, User Self-Test Error, Leak Test Failure
Repeated Single Beep Power switchover
Repeated Three Pulses Extremely Low Internal Battery, High Pressure, Invalid I:E Ratio, High Pressure<Low Pressure, Volume Error, Rate Error, Inspiratory Error, Oxygen Alarm, Pressure Differential Error
Repeated Five Pulses Low Pressure, Valley, Exhale Fail, Apnea, Battery Charge Depleted, Vent Inop
Continuous Tone Microprocessor failure
Single Beep Every FiveMinutes
Low internal battery.
One Second Beep EveryThirty Minutes
Minor Fault.
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One Beep Every FifteenMinutes
Ventilator is ventilating, and a serious fault is detected.
Three Second Tone Ventilator is in standby mode, and a serious fault is detected.
Alarm Volume 85 db or 70 db at a distance of 1 meter
Controls
Alarm Silence/Reset 1. Silences audible alarms during an alarm condition. 2. Silences an alarm before a known alarm condition occurs. 3. Used to reset an alarm after the alarm condition has been cor-rected.
Test Battery 1. When the test battery key is pressed, the Patient Pressure Meter shows the charge level of the battery currently in use. 2. Activates printer.
Standby Used to place the ventilator in the Nonventilate State, disabling the delivery of air.
Ventilate Enables the ventilator to deliver air to the patient.
Mode Causes the current mode on the display to flash and allows the mode to be changed.
Setting keys Volume, Inspiratory Time, Sensitivity, Breath Rate, Pressure, PEEP, Low Pressure, High Pressure, FIO2 (Achieva PSO2 only).
Menu/Esc Activates and deactivates the menu on the ventilator’s display.
START/ENTER Used to accept the currently flashing parameter as the new set-ting. Activates display.
Up and Down Arrow Keys Increases or decreases the parameter settings or menu levels. Pressing when the submenu is not active and a parameter has not been selected will cause the last alarm message to be dis-played.
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Settings
Volume For Assist/Control 50 ml to 2200 ml in 10-ml steps. For SIMV 50 ml to 1750 ml in 10-ml steps. Accurate to ± 10 ml for 50-500 ml and ± 10% (max 75 ml) for 100–2200 ml.
Inspiratory Time 0.2 to 5.0 seconds in increments of 0.1 seconds. Accurate to ±10%.
Sensitivity Flow: 3 to 25 LPM in 1 LPM increments. Accurate to ±2.0 LPM. Off or 1 to 15 cmH2O in 1 cmH2O/hPa increments. Accurate to ±2.5 cmH2O/hPa.
Breath Rate 1 BPM to 80 BPM in steps of 1BPM. Accurate to ±10% or 1 BPM, whichever is greater.
Pressure 0 to 50 cmH2O/hPa in 1 cmH2O/hPa increments. Accurate to ±2.5 cmH2O/hPa of the setting, once the pressure reaches the setting. Pressure support settings below 3 cmH2O/hPa default to 3 cmH2O/hPa.
PEEP 0 and 3 to 20 cmH2O /hPa in 1 cmH2O/hPa increments. Accurate to ±2.5 cmH2O/hPa.
Low Pressure 1 to 59 cmH2O /hPa in increments of 1 cmH2O /hPa. Activates within ±2.5 cmH2O /hPa.
High Pressure 2 to 80 cmH2O /hPa in increments of 1 cmH2O /hPa. Activates within ±2.5 cmH2O /hPa.
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O2 Level (only for Achieva PSand Achieva PSO2)
21% to 100% for tidal volumes greater than or equal to 100 ml; 21% to 70% for tidal volumes less than 100 ml in 1% increments. Accu-racy: 50 to 90 ml, 02 settings < = 70% + 10% 02; 100 to 2200 ml, O2 settings <50%, + 5% O2, all other O2 settings, + 10% of settings.
Supply pressures of less than 45 PSIG may result in reduced O2 per-formance at some settings. Optimum performance is achieved at 65 PSIG O2 supply pressure. It may take several minutes for the oxygen concentration to stabilize. The capacity of the O2 blender is a function of tidal volume and inspiratory time, which in combination influence peak flow. As peak flows increase (large tidal volumes combined with short inspiratory times), the limit of the O2 flow capacity is approached. The set O2 concentration cannot be delivered if the flow capacity of the O2 blender has been exceeded. In this case, an O2 fail alarm will occur. To ensure the prescribed oxygen concentration is delivered to the patient, measure the delivered gases with a calibrated oxygen ana-lyzer at all times.
Altitude 0 to 4500 meters in increments of 100 meters (or 0 to 14,760 feet in increments of 328 feet). (Set in menu system.)
Connectors
Modem Jack (Achieva PSand Achieva PSO2)
RJ 11 phone connector to connect the optional internal modem to telephone lines.
Communications Port RS-232 connector for Achieva Report Generator computer, printer, or external modem.
O2 Inlet (Achieva PSand Achieva PSO2)
9/16–18, DISS 1240 THD.
External Battery Connector 3-pin male receptacle for 24-Volt DC input.
Power Entry Module EIA dual-fuse power entry module.
Provides connections for hot, neutral, and grounded conductors.
The receptacle incorporates fuses in the hot and neutral lines.
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Inlet Filter Intake for patient air. Screw off cap for filter change. 98% effi-cient at 0.3microns.
Patient Pressure Port Port for connection to the proximal pressure line of the patient circuit. For 3/16-in I.D. tube.
Remote Alarm Connector Connector for remote alarm.
Nurse Call Connector Connector for Nurse Call Station.
Patient Air 22-mm O.D./15-mm I.D. ISO Fitting
Exhalation Valve Port Port for connection to the exhalation valve of the patient circuit. For 1/8-in I.D. tube.
Environment
Operating 5°C to 40°C (41°F to 104°F), 10% to 90% RH.
Storage -20°C to 50°C (-4°F to 122°F), 10% to 90% RH.
When moving the ventilator from a non-operating to an operat-ing environment, allow a minimum of one-hour temperature stabilization before use.
When storing the ventilator, the battery must be recharged every thirty days. Storage above or below specified operating temper-atures may affect battery life.
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The Achieva ventilators are intended to operate within its specifications if they are properlymaintained, and the service schedule is followed.
The Achieva ventilators are protected against electrostatic contact discharge of up to eightkilovolts (8 kV). Electrostatic discharge greater than eight kilovolts may damage theventilator.
Miscellaneous
Maintenance Preventative maintenance must be performed by qualified per-sonnel every 6000 operating hours, or recertification every twelve (12) months, whichever occurs first.
Dimensions 10.75 in X 13.30 in X 15.60 in (27.3 X 33.8 X 39.6 cm)
Weight Less than 32 lbs.
Resistance Factor Maximum of 4.5 cmH2O/hPa @60 LPM
Compliance Factor 1.25 mL/hPa for A/C breaths2.50 mL/hPa for Pressure Support breaths
Emergency Pressure Relief 90 ± 10 cmH2O
Response time 75 milliseconds (under the following conditions): Resistance = 5 cmH2O/hPa/L/seconds; Compliance = 50 ml/cmH2O/hPa; Breath Rate = 20 BPM; Volume = 1500 ml; Pressure Support = 10 cmH2O/hPa; PEEP = 5 cmH2O/hPa. Response time varies inversely with the displayed flow rate, and directly with the selected trigger level.
Flow (average) 2.0 LPM to 150 LPM
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Standard compliance
The ventilator complies with the following international agency standards:• IEC 601-1 Medical Electrical Equipment, 1988 Part 1: General Requirements for
Safety1
• IEC 601-1-2 Medical Electrical Equipment, Part 1: General Requirements for Safety,Part 2: Collateral Standard - Electromagnetic Compatibility Requirements and Tests
• CAN/CSA-C22.2 No.601.1-M90 Medical Electrical Equipment Part 1: GeneralRequirements for Safety1
• UL2601-1 Medical Electrical Equipment, Part I: General Requirements for Safety(1994)1
FCC Part 68 information
This information applies to Achieva PS and Achieva PSO2 ventilators, which are equippedwith an internal modem. These units have a MODEM label near the modem connector on theback panel.
Use the ringer equivalence number (REN) to determine the number of devices you canconnect to the telephone line. Excessive RENs on the telephone line may result in devices notringing in response to an incoming call. In most, but not all areas, the sum of the RENs shouldnot exceed five (5). Contact the telephone company to determine the maximum REN for thecalling area.
The required USOC jack for the Achieva ventilator is USOC RJ11C.
1. Classified as Class 1 and internally powered; Type BF; drip proof, not suitable for use in the presence of flammable anesthetics, continuous operation.
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An FCC compliant telephone cord and modular plug is provided with this equipment. Thisequipment is designed to be connected to the telephone network or premises wiring using acompatible modular jack which is Part 68 compliant.
If the Achieva ventilator causes harm to the telephone network, the telephone company willnotify you in advance. If advance notice is not practical, the telephone company will notifythe customer as soon as possible. Also, you will be advised of your right to file a complaintwith the FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations, orprocedures that could affect the operation of the Achieva ventilator. If this happens, thetelephone company will provide advance notice in order for you to make the necessarymodifications to maintain uninterrupted service.
If you experience trouble with the Achieva ventilator, please contact Nellcor Puritan Bennett,phone number 800.255.6774 for repair and/or warranty information. If the trouble is causingharm to the telephone network, the telephone company may request that you remove theAchieva ventilator from the network until the problem is resolved.
Do not make repairs. Doing so voids the user’s warranty.
Do not install the Achieva ventilator on public coin service telephone. Connection to partyline service is subject to state tariffs. (Contact your state public utilities commission forinformation.)
Note Puritan Bennett recommends that the customer install an AC surge arrestor in the AC outlet towhich this device is connected. This is to avoid damaging the equipment caused by local light-ning strikes and other electrical surges.
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Chapter 3: Testing
This section provides procedures for verifying the correct operation of the ventilator.
Overview
The following test procedures are designed to minimize the need for special test equipmentand to eliminate the need for disassembly of the ventilator. The use of a stop watch limits theaccuracy of tests involving time and rate. Therefore, before accepting or rejecting a unit basedon these tests, make sure that the results are not due to procedural error.
Scope
The checkout procedure in this section includes:• visual inspection of controls, attachments, accessory items, and external surfaces.• pneumatic testing of the patient circuit for function and leaks.• testing of power functions, including battery recharging.• verification of ventilation modes.• measuring of ventilation parameters.• checking of alarm and indicator functions.
Calibration and testing beyond the scope of this manual should be referred to an authorizedservice technician.
Frequency
Testing should be performed monthly.
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Documentation
The operational checklist, located at the end of this section, should be reproduced and usedeach time a test is performed. A copy of the completed checklist should be maintained in thehealth care provider’s file.
Ventilation equipment
In addition to the ventilator, the following Nellcor Puritan Bennett equipment is required for acomplete verification test:
• patient circuit with test lung• exhalation manifold valve• bacteria filter• DC power cable assembly• 24 VDC battery
Test equipment
The following test equipment is also needed.
Table 3-1: Equipment and Recommended Supplier
Equipment Recommended Supplier
Respirometer (hand-held) Wright
Fraser-Harlake
Ferrairs Medical
Stop Watch Any
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Calibration of test equipment
Verify that the calibration procedures comply with the test instrumentation requirementsadopted by the testing organization. Verify also that the calibration period has not lapsed.
Qualifications of test personnel
Testing should be performed by a qualified operator or service technician familiar with thefunction, setup, and operation of the ventilator. For basic operational instructions, refer toChapter 2 of this manual.
Supplies• mild detergent• absorbent wipes or clean towels or cloths
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Standard ventilation parameters
Unless otherwise stated, use the following standard ventilation parameters.
ConnectionsUnless otherwise specified, make the following external connections to the ventilator:
• power plug to AC power (three prong, grounded)• patient hose (with exhalation manifold) to PATIENT AIR port (front panel)• 500-ml test lung to exhalation manifold
• proximal pressure tube to PATIENT PRESSURE port (front panel) • exhalation valve tube to the EXHALATION VALVE port (front panel)• connect to a fully charged external battery.
Table 3-2: Standard Ventilation Parameters
Parameter Setting
MODE Standby
VOLUME 500 ml
INSPIRATORY TIME 1.5 seconds
SENSITIVITY 5 LPM
BREATH RATE 10 BPM
PRESSURE SUPPORT 0
PEEP 0
LOW PRESSURE 10 cmH2O/hPa
HIGH PRESSURE 80 cmH2O/hPa
FIO2 21%
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WarningDo not use the ventilator if it does not pass all of the verification tests. Referthe ventilator to a Nellcor Puritan Bennett Service Technician or call800.255.6774 for repair and calibration.
Visual inspectionCleaning. Prior to inspecting and testing the ventilator, clean the exterior with a milddetergent. Do not allow liquid cleaning agents to penetrate the inside of the ventilator.
WarningAny liquid leaking into the ventilator or its connections may damage theunit or result in an electrical shock hazard.
Cabinet. Examine the cabinet for scratches, dents, or deformities. Side mounting bracketsshould be securely attached. Rubber feet should be in place and not broken or cracked.
Top Panel. Check the control/display panel for cracks or breaks. Check the PRESSURE METER
window for scratches and debris. The meter needle should be within one division of 0 cmH2O/hPa if the ventilator is plugged into AC power.
Control/Display Panel. Open the magnetically secured door and examine the control/displaypanel for scratches, dents and dirt.
Front Panel Connections. Check the front panel connection ports for cracks, dents or benttubes. Make sure they are free of foreign matter.
Rear Panel. Check the rear panel for dirt and damage. Examine the power cord for damagedinsulation. Check the plug for bent pins or breaks. Examine the external battery connector andcommunications port for secure attachment and straight connector pins.
Inlet Air Filter. Unscrew the cap to the inlet air filter and replace the fiber air filter. Use onlyfilters supplied by Nellcor Puritan Bennett. Follow the instructions for replacing the filter.
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Caution Correct any problems found during the visual inspection before proceeding tounit checkout.
Pneumatic test
The ventilator’s built-in user self-test can be used to test the ventilator’s pneumatic system forleaks and response to high pressure conditions. The ventilator must be in Standby mode.
Figure 3-1: Front panel view
1. While Standby, press the MENU/ESC key.
2. The user self-test is the first item in the menu. The display screen will readPress ENTER to begin
User Self-Test
3. Press the START/ENTER key.
The display screen will readOcclude patient’s
end-of-breathing circuit
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4. Block the part of the exhalation manifold that connects to the patient, as shown below. It is important that you make a tight seal and do not let any air escape.
Figure 3-2: Blocking exhalation manifold
WarningA ventilator patient is highly susceptible to respiratory infections. Dirty orcontaminated equipment may be a source of infection. Clean equipment isessential for successful ventilation. Be sure to wash your hands thoroughlybefore and after contact with the patient circuit.
The display screen will readPress ENTER when ready
to begin test
5. When you have a good seal on the exhalation manifold, press the START/ENTER key.
The ventilator will push air into the circuit as it runs the test.
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6. If the ventilator passes the test, this message will be displayed:TEST PASSED
ENTER: repeat ESC: exit
Press the START/ENTER switch to repeat the test, or the MENU/ESC switch to end the test.
7. If the ventilator fails the test, one of three messages will be displayed:
a. Test ERRORRefer to MANUAL
If this message is displayed, it means the test was not conducted properly.• Press the ALARM SILENCE/RESET switch. The display screen will indicate that
the test was a failure, as shown here:Test FAILED
ENTER: repeat ESC: exit• Check all the connections in the patient circuit, including the blockage in the
exhalation manifold.• Press START/ENTER to repeat he test.
b. Leak Test FAILEDRefer to MANUAL
If this message is displayed, it means that there is a leak in the patient circuit somewhere between the patient air port and the blockage you created at the exhalation manifold.• Acknowledge the alarm condition by pressing the ALARM SILENCE/RESET
switch. The display screen will indicate that the test was a failure.Test FAILED
ENTER: repeat ESC: exit• Press START/ENTER to repeat the test.• If the ventilator fails the test again, try using a new patient circuit and repeat the
test. If the ventilator fails with a new patient circuit, contact your equipmentsupplier or Nellcor Puritan Bennett.
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c. Relief valve test FAILEDRefer to MANUAL
If this message is displayed, it means that the ventilator’s relief valve did not function properly.• If the ventilator fails the test again, contact your equipment supplier or Nellcor
Puritan Bennett.
Power system checkout
The following procedure verifies that the ventilator selects the correct power source. It alsoverifies that power switchover occurs upon power failure and that the proper alarm andindicators are activated.
Prior to beginning the checkout procedure, set the standard ventilation parameters from Table3-3. Record the pass/fail determination on a copy of the operational checklist, located at theend of this chapter.
Table 3-3: Power system checkout
Key/Action From To Desired Response
AC Power Cord Unplugged Plugged in Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARGING lights come on; ventilator cycles once; PRESSURE METER at 0 ± 2 cmH2O/hPa.
MODE Standby Assist/Control
Indicator lights & audible alarm on for 2 seconds; A.C. remains on; ventilator cycles at 10 ± 1 BPM; PRESSURE METER indicates pressure excursion.
External Battery Power Cord Plugged in Connect external battery.
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AC Power Cord Plugged in Unplugged POWER SWITCHOVER light on; alarm sounds; EXTERNAL BATTERY LED and BATTERY CHARGING lights stay on; A.C. LED is off; ventilator continues to cycle.
ALARM SILENCE/ RESET Press Alarm and indicator turn off
Disconnect External Battery POWER SWITCHOVER light on; alarm sounds; INTERNAL BATTERY light on; EXTERNAL BATTERY light off; ventila-tor continues cycling.
ALARM SILENCE/ RESET Press Audible and visual alarms turn off
TEST BATTERY Press & hold
PRESSURE METER indicates charge condition of internal battery: INTERNAL BATTERY light comes on.
AC Power Cord Unplugged Plugged in INTERNAL BATTERY light goes OFF; A.C. light comes on; Battery Charging light comes on.
MODE Assist/Control
Standby Completes Power System Checkout
Table 3-3: Power system checkout (Continued)
Key/Action From To Desired Response
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Assist/control ventilation mode checkout
Verify the ASSIST/CONTROL Mode functions by performing the following checkout procedure.Record the results on a copy of the Operational Checklist located at the end of this chapter.Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4.
The following symbol will assist you when you use the ASSIST/CONTROL Mode functions.Press this key to enter an increase or decrease in quantities.
START/ENTER function setting key:
NoteVolume variation will be a function of the respirometer accuracy, which is flow-rate depen-dent. See the respirometer manual. Ventilator volume change occurs at a rate of 100 ml/breathcycle.
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Table 3-4: Assist/Control ventilation mode checkout
Key/Action From To Desired Response
MODE Standby Assist/Control
Indicator lights & audible alarm on for 2 seconds; A.C. LED and BATTERY CHARG-ING lights on; PRESSURE METER regis-ters pressure
Measure breath time with the stop watch.
Rate equals 10 ± 1 BPM
Replace test lung and patient hose with respirometer. Block EXHALATION VALVE port.
Volume reads 500 ± 100 ml
VOLUME 500 1000 Respirometer volume reads 1000 ± 120 ml
VOLUME 1000 2000 Volume reads 2000 ± 200 ml
VOLUMEReplace test lung and patient hose
2000 500 Completes Volume check
Measure I-TIME Should be 1.5 seconds ± 10%
VOLUME 500 1000 Should be 1.5 seconds ± 10%
INSPIRATORY TIME 1.5 3.0 Should be 3.0 seconds ± 10%
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INSPIRATORY TIME 3.0 4.5 SETTING ERROR alarm
Reset INSPIRATORY TIME 4.5 1.5 Alarm, LED off; completes I-TIME and SETTING ERROR check
HIGH PRESSURE 80 25 Pressure increase on meter stops at HIGH PRESSURE setting; HIGH PRESSURE LED flashes; alarm sounds
ALARM SILENCE/ RESET Press Alarm off; HIGH PRESSURE LED flashes. In one minute, alarm reactivates.
VOLUME 1000 500 HIGH PRESSURE LED and audio alarm continue until pressure is below HIGH ALARM setting, then alarm is off; LED remains on.
ALARM SILENCE/ RESET Press LED extinguishes
HIGH PRESSURE 25 80 Completes HIGH PRESSURE check
Remove test lung At second breath, alarm sounds, LOW PRESSURE/APNEA LED flashes
ALARM SILENCE/ RESET Press Alarms off; LED flashes. After one minute alarm reactivates.
Replace test lung Alarm off
ALARM SILENCE/ RESET Press LOW PRESSURE/APNEA LED turns off. This completes the LOW PRESSURE/APNEA Checkout.
Table 3-4: Assist/Control ventilation mode checkout (Continued)
Key/Action From To Desired Response
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SIMV ventilation mode checkout
This procedure verifies those operational functions unique to the SIMV mode. Functions thatare verified in the Assist/Control mode are not repeated. Therefore, it is necessary to test theAssist/Control mode in addition to SIMV.
Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4. Record the pass/fail results on a copy of the Operational Checklist, locatedat the end of this chapter.
Note In SIMV mode, the ventilator coordinates assisted breaths with the patient’s inspiratory effort.Therefore, measured breath rates will vary somewhat from the rate set for the BREATH RATE
parameter.
Table 3-5: SIMV mode checkout
Key/Action From To Desired Response
AC Power cord Unplugged Plugged in Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARGING light on; ventilator cycles once; PRES-
SURE METER at 0 ± 1 cmH2O/hPa
MODE Standby SIMV Indicators & audible alarm on for 2 sec-onds
BREATH RATE 10 6
SENSITIVITY 0 5
Squeeze test lung to simulate 2 or 3 spontaneous breaths at about 6-second intervals
ASSIST/SPONTANEOUS LED flashes; pressure gauge dips negative; ventilation occurs synchronized to simulated effort
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Cease spontaneous effort A mandatory breath will occur within 20 seconds after spontaneous breaths cease and will continue at the 6 ± 1 BPM rate; no alarms activate.
BREATH RATE
Within 20 seconds after switching to 4, simulate breaths
6 4 ASSIST/SPONTANEOUS LED lights; ven-tilation occurs, synchronized to effort.
Cease spontaneous effort In 20 ± 0.5 seconds after last spontaneous breath, alarm on, LOW PRESSURE/APNEA LED on; ventilator delivers 10 ± 1 BPM
ALARM SILENCE Press Light and alarm off; 10 BPM delivery stops in 20 ± 0.5 seconds; alarm reactivates
ALARM SILENCE/ RESET Press Light & alarm deactivate; 10 BPM delivery stops.
Within 20 seconds, simulate breaths
ASSIST/SPONTANEOUS LED flashes; breaths delivered; light and alarm off
MODE SIMV Standby This completes SIMV check.
Table 3-5: SIMV mode checkout (Continued)
Key/Action From To Desired Response
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Achieva Ventilator Technical Manual
Pressure-controlled ventilation mode checkout
The following procedure only verifies those functions unique to the PRESSURE CONTROL
mode of ventilation. Those functions that are verified in the Assist/Control mode are notrepeated here. Perform an Assist/Control checkout in addition to PRESSURE CONTROL modecheckout.
Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4. Record results on a copy of the Operational Checklist, located at the end ofthis chapter.
Table 3-6: Pressure-controlled mode checkout
Key/Action From To Desired Response
AC Power Cord Unplugged Plugged in
Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARGING lights are on; ventilator cycles once; PRES-
SURE METER at 0 ± 1 cmH2O/hPa
MODE Standby Assist Control
Alarms and indicators on for 2 seconds; ven-tilator commences cycling at 10 ± 1 BPM
PRESSURE 0 10
Observe PRESSURE METER Pressure indicated on meter rises to 10 cmH2O/hPa.
MODE Assist Con-trol
Standby This completes Pressure-control check.
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Pressure support mode checkout
The following procedure only verifies those functions unique to the PRESSURE SUPPORTmode of ventilation. Those functions that are verified in the Assist/Control mode are notrepeated here. Perform an Assist/Control checkout in addition to PRESSURE SUPPORTmode checkout.
Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4. Record results on a copy of the Operational Checklist, located at the end ofthis chapter.
Table 3-7: Pressure support
Key/Action From To Desired Response
AC Power Cord Unplugged Plugged in
Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARG-ING lights are on; ventilator cycles once; PRESSURE METER at 0 ± 1 cmH2O/hPa
MODE Standby Sponta-neous
Alarms and indicators on for 2 seconds
PRESSURE 0 10
Observe PRESSURE METER Pressure indicated on meter rises to 10 cmH2O/hPa.
MODE Assist Con-trol
Standby This completes Pressure-Control Check.
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Achieva ventilator operational checklist
Owned by: Serial # Hour Meter Reading: Date:
User: Serviced by:
Address: Address:
City: City:
State & Zip: State & Zip:
User Phone: Service Representative:
Test Operation Test Results Pass Fail
Visual Inspect As specified r r
Set standard parameters Procedure Not applicable
Connections Procedure Not applicable
Pneumatic Test Perform Test As specified in procedure. r r
Power System Perform Tests As specified in procedure. r r
Assist/Control Mode Perform Tests As specified in procedure. r r
SIMV Mode Perform Tests As specified in procedure. r r
Pressure Control Mode Perform Tests As specified in procedure. r r
Pressure Support Mode Perform Tests As specified in procedure. r r
Comments:
Signature: Date:
4-1
Achieva Ventilator Technical Manual
Chapter 4: Theory of operation
This chapter provides an operating theory for the Achieva ventilators.
Pneumatic system
NoteText in bold sans-serif font refers to the labels in the illustration; see Pneumatic diagramon page 4-2.
ComponentsPump — Airflow is created by a 7-in diameter mechanical piston pump. The piston is drivenby a brushless DC motor through a 96:1 speed reduction gearbox. The pump is capable ofdelivering volumes of 50 to 2200 ml and pressures up to 90 ± 10 cmH2O/hPa.
Manifold — The manifold channels and directs the airflow within the ventilator. Themanifold also provides a means to mount various valves and transducers.
Valves — Check valves are used to control the air flow direction. They are accessible forreplacement by authorized personnel should they become worn, dirty, or otherwise faulty. Themanifold is equipped with a mechanical relief valve that will protect the patient from highpressures. It is set to 90 ± 10 cmH2O/hPa.
Exhalation Manifold — The exhalation manifold is a pneumatically operated, three-wayvalve that directs the patient’s inspired and expired flow. It may also be used as an integralpart of the PEEP system. It is available in both a disposable and reusable version. They areeasily disassembled, cleaned, and reassembled.
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Figure 4-1: Pneumatic diagram
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Achieva Ventilator Technical Manual
OperationPump — The withdrawal stroke of the piston in the mechanical piston pump draws air intothe ventilator through a 0.3 micron inlet filter. Air enters the cylinder through the inlet c.v.(check valve) and, if called for, is mixed with oxygen from the blender (available only onAchieva PSO2). The combined gases become pressurized by the forward piston stroke andexit through the pump outlet c.v. (check valve) and through a 50 X 250 mesh filter. The gaspasses through one additional 40-mesh filter just before leaving the ventilator through thepatient air outlet tube.
Supplemental Oxygen — The internal oxygen blender (available only on Achieva PSO2) isshown in the Blender Components box on the pneumatic diagram. Oxygen enters theblender through the DISS O2 connector, and then passes through the blender c.v. (checkvalve) and the mesh filter (40 micron). The regulator drops the pressure to 55 psig beforefeeding the oxygen to two parallel VSO O2 valves. The ventilator allows enough oxygen intothe pump to reach the selected concentration. If the ventilator determines that the measuredflow rates are insufficient for the selected FIO2 settings O2 FAIL alarm will sound.
Ventilator by-pass — Ventilator by-pass uses a parallel path incorporated into the manifold.This path bypasses the pump and allows air to move directly to the patient air outlet tubeafter passing through the 0.3 micron inlet filter and the ventilator by-pass c.v. (checkvalve). This allows the patient to breathe spontaneously in the event of complete ventilatorfailure.
PEEP — The PEEP valve is a voltage-sensitive orifice (VSO) that controls the mushroomvalve in the exhalation manifold. With the VSO open, the mushroom valve is deflated,resulting in a PEEP level of 0 cmH2O/hPa. With the VSO fully closed, the mushroom valve isfully seated, and the maximum PEEP pressure in the patient circuit is 20 cmH2O/hPa. As asafety measure, the VSO is normally open to deflate the mushroom valve. This allows thepatient, in the event of ventilator failure, to breathe through the exhalation manifold.
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Theory of operation
Achieva Ventilator Technical Manual
System control
The block diagram below provides an overview of the control system.
Figure 4-2: Control System block diagram
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Theory of operation
Achieva Ventilator Technical Manual
Micro-controller
The ventilator is controlled by a micro-controller via software stored in flash memory. The micro-controller consists of:
• 16-bit Central Processing Unit (CPU)• Systems Integration Module (SIM)• 1024 bytes of Static RAM• 8-channel, 10-bit Analog to Digital Converter• Serial port• Two 16-bit timer/counters• Two Pulse Width Modulator (PWM) output channels
System memory
System memory consists of three modules:
Flash Memory — stores the software instructions for system operation.
Static Random Access Memory (SRAM) — provides temporary storage of data. A lithiumback-up battery allows data stored in SRAM to be retained when other power sources fail.
Non-Volatile Random Access Memory (NVRAM) — The ventilator uses Non-VolatileRandom Access Memory (NVRAM) for storing ventilator parameter settings. The NVRAMis backed up by a battery (BBU).
Real-time clock
The ventilator has a real-time clock that can be set by the user and read by the micro-controller. The clock keeps track of the year, month, day, hours, and seconds. The real-timeclock is backed up by a battery and can maintain data for a minimum of 9 years from the dateof manufacture.
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Motor drive control
The motor drive controls the brushless DC motor that drives the piston. This circuitry allowsthe micro-controller to control the motor position, speed, and direction. The motor driveincludes protective fault detection and safety logic. The motor drive will function with apower input of 11V DC to 32V DC. (See your ventilator’s back panel for specific voltageranges.)
System analog monitoring circuitry
The System Analog Monitoring circuitry converts the following analog signals to a voltagethat is within the range (0 to 5V DC) of the micro-controller’s internal analog to digitalconverter (ADC) and the external serial A/D converter circuits, as described here:
• Primary pressure sensor• Secondary pressure transducer• Primary flow sensor• Power bus sense • Internal battery voltage• Internal battery current• External battery voltage• Battery charger current• Piston motor current• Amplified flow transducer• O2 flow sensor• +10 voltage reference sense• Alarm power voltage sense• ADC +5 reference• External battery current
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System analog control
The system analog control circuitry converts micro-controller digital data into analog signalsfor controlling the following ventilator systems:
The Panel Meter Control — is a 0 to 1 milliamp source and corresponds to patient pressuresof -10 to 100 cmH2O/hPa.
The Exhalation/ PEEP Valve — requires linear control of its Voltage Sensitive Orifice(VSO) Valve. The Exhalation/PEEP valve is normally an open valve, and the failsafe state isopen. The watchdog circuitry provides a redundant means (separate from the micro-controller) to remove power from the Exhalation/PEEP valve.
The Piston Oxygen Blender Control — is normally a closed valve. The failsafe state isclosed. The watchdog circuitry provides a redundant means (separate from the micro-controller) to remove power from the Piston Oxygen Blender Valve.
Watchdog
The ventilator includes two watchdog circuits that detect micro-controller faults. Whenactivated, these circuits cause the ventilator to enter the safe state. The safe state is defined as
• PEEP valve open • Oxygen blender valves closed• Audible alarm activated • Piston stopped• All LEDs activated
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Theory of operation
Achieva Ventilator Technical Manual
Digital inputs
The digital input section provides the micro-controller with the means to monitor the status of• Input switches and the• Watchdog circuit
Digital outputs
Through the digital output circuitry, the micro-controller controls the on/off status of thefollowing systems:
• Battery charger• Modem controller• Remote alarm and nurse call port• Audible alarm • Alarm and power LEDs • LCD (Alphanumeric) display. In addition to turning the LCD on or off, the micro-con-
troller also sends the information displayed on it. The LCD is illuminated duringupdating of the ventilation parameters and during the initial 30 seconds of an alarmcondition.
• External battery• Power supervisory circuit
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Achieva Ventilator Technical Manual
Micro-controller I/O ports
The micro-controller I/O ports handle the following signals:• End-of-travel sensor• Piston motor fault• Ventilate/standby mode input• Battery charger level control• Power bus low power input• 24V battery status input• Remote alarm reset input• Memory watchdog active
System power
The ventilator can draw its power from an external source (either AC or a battery) or from theinternal battery. The power system provides several DC voltage levels for the ventilatorcircuitry and the internal battery charger. The power system provides status signals to themicro-controller to indicate which source is active. The power system also provides analogsignals that the micro-controller can use to determine the following:
• internal battery voltage and current • external DC input voltage • battery charger current• status of the battery charger control lines
Refer to Figure 4-3: Power supply inputs and Table 4-1: Power sources and priority levels on page 4-10.
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Figure 4-3: Power supply inputs
Table 4-1: Power sources and priority levels
Power Source Priority Voltage/Frequency Range
AC Line Power or a DC to AC Power Inverter
1 100 to 240V AC / 50 to 60 Hz (No switch setting or jumpers required)
External DC Power 2 See your ventilator’s back panel for specific voltage ranges.
Internal Battery 3 23.2 to 29.0V DC / NA
POWER BUS
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The Achieva will operate properly when all three sources are connected simultaneously andwill switch automatically between the three power sources. Switching will occur according toavailability and priority of the power source and will not cause an interruption in ventilatoroperation.
The ventilator will operate from the external power source until the external power source isno longer within the operating range.
The ventilator will operate from an external power source (AC/DC Power Supply or ExternalDC Power Source) when the internal battery is completely depleted or absent.
There is no on/off switch for the AC input. Plugging and unplugging the AC power cord is thecorrect way to connect/disconnect AC power. The AC power lines are fused with “Slo-Blow”type fuses rated at 3.15 amperes. The AC supply output voltage is 24V DC. The power supplyis protected from short circuits on the output—no damage will result when a dead short isapplied to the output.
Natural convection and heat-sinking are used to cool the power system.
External DC Input — The ventilator will accept an input of 11 to 32V DC through a separateinput connector. The unit will start up if the input voltage is at least 12.7 ±.2V DC, and it willoperate down to 11.8V DC. (See your ventilator’s back panel for specific voltage ranges.)
While the unit is capable of withstanding typical automotive transients, it may not withstandautomotive start up transient conditions.
The peak input current when operating at 12V DC is 6 Amps. The external DC input is fusedwith a “Fast-Blow” type fuse.
The power system senses the external DC input voltage polarity and protects itself fromdamage. If battery polarity is reversed, no damage to the system will occur. The power systemwill disconnect the External DC Source from the system.
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Internal Battery Input — The internal battery is rated at 24 volts. It will operate theventilator, provided no other power source is available, until its voltage drops to about 11V.The peak input current when operating at 24.0V DC is 5.5 Amps. The internal battery input isfused with a “Fast-Blow” type fuse.
Power Distribution — The Main Power Bus supplies power for the motor power drive, theauxiliary DC/DC power supplies, and the internal battery charger. The Main Power Busvoltage will be at the voltage level of the active power source. The maximum voltage is 32VDC, and the minimum operating voltage is about 10.6V DC. The Main Power Bus is capableof distributing a maximum of 6 amps.
The Internal Battery Charger — The Internal Battery Charger is operational when thepower source to the ventilator is either the External DC Source or the AC/DC Power Supply.The Battery Charger is capable of providing a bulk charge voltage level of 29.0V DC and atrickle charge voltage level of 27.6V DC. The battery charger is current-limited to 0.4 amp.The Battery Charger is capable of fully charging the internal battery within twelve hours. TheBattery Charger is automatically disabled when the ventilator is operating from the internalbattery.
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Power system controlFront panel control — The ventilator sequence and the START/ENTER and STANDBY keysare capable of turning system power on and off as described below.
External battery voltage indicator — The power system provides a signal to the micro-controller that indicates whether the External DC Power Source is nominally rated at 12V DCor 24V DC. See also your ventilator’s back panel for specific voltage information.
Watchdog turn off control — The power system includes an input that is used by thehardware Watchdog Timer, in conjunction with the STANDBY key, to provide a means toremove power from the system when the micro-controller has failed, and system power islatched on. If the system is operating from either the internal battery or an external DC source,and a watchdog failure activates the Watchdog Turn Off Control, pressing the STANDBY keyfor a period greater than three seconds will cause system power to be removed. If a watchdogfailure is not present, pressing the STANDBY key for a period greater than three seconds willhave no effect other than switching the ventilator to Standby Mode.
Alarm power — Alarm power is derived from one of two power sources: • unfiltered 12V DC/DC switcher voltage • unfused internal battery voltage.
The higher voltage is automatically selected. Power to the alarm is controlled in such amanner that if the system power is lost without being under micro-controller control, theaudible alarm is activated.
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5-1
Achieva Ventilator Technical Manual
Chapter 5: Maintenance
This chapter provides cleaning and maintenance information, a maintenance schedule, and replacement procedures for the inlet filter and fuses.
Cleaning ventilator surfaces
This section contains instructions for maintaining and cleaning the ventilator. You must alsoconsult the corresponding cleaning instructions for the various accessories used with theventilator.
WarningA ventilator patient is highly susceptible to respiratory infections. Dirty orcontaminated equipment may be a source of infection. Clean equipment isessential for successful ventilation. Be sure to wash your hands thoroughlybefore and after cleaning the ventilator or accessories.
CautionDo not sterilize the ventilator with ethylene oxide (ETO) or steam. Doing so may damage theventilator.
CautionDo not use methyl ethyl ketone (MEK), trichloroethylene, or alcohol to clean the ventilator.Doing so may damage the unit’s surfaces.
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Frequency Clean as often as the surface becomes soiled.
Supplies Use a mild soap solution and a damp cloth.
Procedure 1. Clean with a mild soap solution and a damp cloth. Squeeze the cloth thoroughly before applying it to the unit’s surface.
2. Do not allow liquids to enter the ventilator.
Caution Never allow liquids to contact internal ventilator components. Moisture will damage the ven-tilator.
Note Contact Puritan Bennett for alternate cleaning methods.
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Replaceable parts
CautionFailure to change a dirty filter may damage the ventilator and can void the warranty. Ablocked inlet filter may cause a setting-error alarm.
CautionDo not operate the ventilator without an inlet air filter. Using the ventilator without a filtermay damage the ventilator. Use only filters supplied by Puritan Bennett.
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Flatpak filterThe model Y-6109 Inlet Filter (Flatpak) is a replacement part for the ventilator. Inspect the fil-ter monthly (weekly if used outdoors, in transport, or in a dusty atmosphere). Replace with anew filter when it shows signs of discoloration. The Flatpak filter is disposable; discard afterremoval. Do not attempt to wash or otherwise clean it. Do not reuse filters.
1. Twist off the retainer ring of the inlet filter (Flatpak) from the back panel of the ventilator and replace the Flatpak filter cartridge.
2. Reassemble the O-ring, Flatpak filter, and Retainer Ring as shown:
Figure 5-1: Replacing Flatpak filter
Inlet Housing
O-Ring
Flatpak Filter (Model Y-6109)
Retainer Ring (Model Y-6109-ACH)
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Maintenance
Achieva Ventilator Technical Manual
Changing the fuses
A fuse may need to be replaced if the ventilator is plugged into an electrical outlet, but thecharging light is not illuminated.
The fuses for the ventilator are rated at 250V, 3.15A, 5 x 20 mm, slow blow. Replacementfuses are available from your equipment supplier or Puritan Bennett.
CautionFor continued protection against fire hazard, replace only with identically rated fuses.
WarningBefore changing the fuse, unplug the power cord.
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Maintenance
Achieva Ventilator Technical Manual
The fuse holder is located above the power cord connector.
To remove the fuse holder:
1. Unplug the power cord.
2. Insert a small screwdriver into the small slot on the under side of the fuse holder.
Figure 5-2: Removing fuse holder
3. Pull upward with the screwdriver.
4. The fuse holder should pop out slightly.
5. Pull the fuse holder out.
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Maintenance
Achieva Ventilator Technical Manual
6. Remove the fuses.
Figure 5-3: Replacing fuses
7. Place the new fuses directly into the fuse holder.
8. Replace the fuse holder in the ventilator. You should feel a click when it is secure.
9. Reconnect the power cord.
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Maintenance
Achieva Ventilator Technical Manual
Periodic maintenance
The ventilators require preventive maintenance at a minimum of once every 6000 operatinghours, or recertification every twelve (12) months (whichever occurs first) by PuritanBennett’s qualified service personnel. The ventilator is intended to function within itsspecified standards if the service schedule is followed.
To display the ventilator operating hours:
10. Press the MENU/ESC key.
11. Press the up or down arrow key until the display screen says:
Ventilating hours sincelast maintenance: XXXXX
Achieva ventilators are warranted against defects in workmanship and materials. The fullwarranty provides details. Do not make any service repairs on this equipment during the statedwarranty period. Any unauthorized work immediately voids the warranty. If you needinformation or assistance, or if the information in this manual is insufficient, contact PuritanBennett at this number:
800.255.6774
Puritan Bennett does not recognize the owner of a ventilator as an authorized servicerepresentative. Puritan Bennett will not be liable for any repairs attempted by the owner. Anysuch attempted repairs, other than specified non-warranty repairs, void the warranty. Parts andlabor costs incurred by the owner will not be reimbursed by Puritan Bennett.
Before returning any device to Puritan Bennett, you must obtain a Return AuthorizationNumber by calling Puritan Bennett at the number listed above.
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Schematics
Achieva Ventilator Technical Manual
Chapter 6: Schematics
This chapter provides the schematic diagrams for the logic board and the power board, and assembly drawings.
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Schematics
Achieva Ventilator Technical Manual
Schematic 6-1: Logic board—notes for schematics
6-3
Schematics
Achieva Ventilator Technical Manual
Schematic 6-2: Logic board—microprocessors
6-4
Schematics
Achieva Ventilator Technical Manual
Schematic 6-3: Logic board—memory/address select
6-5
Schematics
Achieva Ventilator Technical Manual
Schematic 6-4: Logic board—switch inputs
FOR
FOR U44
6-6
Schematics
Achieva Ventilator Technical Manual
Schematic 6-5: Logic board—LED indicators/controls
6-7
Schematics
Achieva Ventilator Technical Manual
Schematic 6-6: Logic board—miscellaneous digital I/O
6-8
Schematics
Achieva Ventilator Technical Manual
Schematic 6-7: Logic board—alarm and monitor circuits
6-9
Schematics
Achieva Ventilator Technical Manual
Schematic 6-8: Logic board——communications driver
6-10
Schematics
Achieva Ventilator Technical Manual
Schematic 6-9: Logic board—pressure sensor circuits
0.1uFC313
-5V
12V
0.082uF
C100
NT267
VSSA
AN5
AN7AN6
AN1AN2AN3AN4
BAT_CHRG_I 6 7
MAD1103P
IN8IN7IN6IN5IN4
VSSA
NT541NT540
NT542 13 10
14NC
NCNC
GND
+10.0V_REF_SNSAMPL_FLO
1211 9 8
IN3IN2IN1
OVER VOLTAGE PROTECTION FOR uP ADC
VDDA
NT539
U30
4 1
NCVCC
INT_BAT_VPRI_FLOPRI_PRESS
5 3 2
VSSA
VSSA
NT277
C326
0.1uFR22410.5K
LM358
VSSA
4 2
31
90.9KR223
12V
8U46A
7
VSSA
6
0.1uF C311
VSSA
LM3584
-1v_REF
5
8U32B
12V
VSSA
PXDCR2_OUT+
PXDCR2_OUT-
PXDCR2+ C312
1F27
NT272
0.1uF
NT279
2
VSSA
0.1uF
C321
95.3K
R71
NT268NT269
1
F26
2
NT270
100K
R70
VSSA
NT543 NT262NT545
0.1uF
4
0.1uF
VSSA
C310
NT263
2
3
U32A8
LM358
1
12V
VSSA
0.1uFC95
REF_PWR
VSSA
3 4
15V 2 1
6VOUTTRIM
MAX674
GNDTEMP
5
N.CN.C
U31
VINN.C
87
12V
100K
R69
PXDCR1_OUT
PXDCR1+
200R66
VSSA
0.082uF
C101 2
3
NT264 NT265
VSSA
+10.0VREF
C94
NT544NT404
NT261NT417
VSSA
NT276
VALID FROM -20 TO +120 cmH20
10.0K
R67
-5V
NT273
4 5
301
1 2
R65
AD620
U29
6
7
8 3
NT271
NT274
12V
95.3K
Vout = .0391*PBACKUP PRESSURE SIGNAL
0.1uFC98
Vout = 0.0389*P + 0.633VALID FROM -20 TO +120cmH20
LM358
R68
4
1
1.0K
R64
NT266
U25A8
+1V_REF
1.0uFC99FOR U32
VSSA
0.1uF 25V
2CND_PRESS
VSSA
0.1uFC92
FOR U25
ANX0
12V
C105
25V
-5V
1.0uFC107
0.1uFC104
FOR U25
VSSA
VSSA
0.1uFC96
12V
25V1.0uFC97
V+12VVDD +5VVCC
AN0
+10.0V_REF
PRI_PRESS
NT278
FOR U29
-5V
25V1.0uFC106
0.1uFC103
VSSA
VSSA
FOR U29
DGND
GND
0.1uFC93
12V
25V1.0uFC91
NT443
VSS VSSA
NT444
V-
NT441 NT442
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Achieva Ventilator Technical Manual
Schematic 6-10: Logic board—flow sensor circuits
NT288
FLSC2_OUT
VSSA
88.7K
0.018uFC118
R80
100K
VSSA
NT295
FLSC2+NT293
R84
100KR78
NT292
R237100K
4
-5V
LM358
7
8
6
5
NT28712V
U34B
VSSA
7+10.0V_REF
VSSA
VSSA
4 6
5
8
-1V_REF
12V
U46B
0.1uFC314
LM358FLSC1_OUT
FLSC1+
NT282
NT281
VSS
110K
LM358
-5VR79
4 6
7
VSSA
1.0K
0.1uFC113
O2_FLOW ANX2GND VSSA V-
-5V
+5V
25V1.0uFC244
VSSA
-5V
VSSA
12V
0.1uFC242
VSSA
12V
VSSA
25V1.0uFC115
0.1uFC109
88.7K
1.0K
R72
U35B
12V
8
5
NT296
VSSA66.5K
VSSA
R76
R74
205k
R75-5V
NT291
100K
0.018uF
100K
R85
C117
R82
NT289
U35A NT290
LM358
24
3
8
1
12V
0.1uF
VSSA
DGND
VDDVCC
FOR U35
C111
AMPL_FLO AN4
NT298FOR U35
NT285
-5V
12V
0.018uF
VSSA
R77
NT286
100K
C120
NT283
R83
2
3
LM358
110K
R86
4
1
U34A8
1.0K
R73
NT284
100K
R81
VSSA
0.1uFC112
PRI_FLO AN1
FOR U34
FOR U34
V+12V
0.1uFC245
25V1.0uFC243
C1140.1uF
C110
25V1.0uF
6-12
Schematics
Achieva Ventilator Technical Manual
Schematic 6-11: Logic board—primary ADC circuits
NT311
VSSA
100K
R89
49.9K
CHGR_I_SENSE
NT308
0.1uFC127
-5V
4 6
NT309
8
5
12V
LM3581.0K
NT310
U40B
7R88
-5V
VSSA
14.3KR90
NT306
20.0K
0.1uFC123
R93
LM358
R96
NT300
NT299
+10.0V_REF
INT_BATT_VSNS-
INT_BATT_VSNS+
0.1uF
12V
4
8
6
5
NT307NT305
7
U36B
VSSA
402K
R95
402K
R94
C124 100KR92
NT302NT301
VSS
BAT_CHRG_I
VSSA
0.1uFC126
AN3
GND VSSA V-
-5V
+5V
VSSA
VSSA
12V
INT_BAT_V
0.1uF
C122
100K
R91
NT303
4
-5V
LM358
8
2
3
12V
U36A
1
VSSA
1.0K
0.1uFC125
NT304
R87
DGND
VDDVCC
FOR U361.0uF25V
C248
AN2
FOR U36
0.1uFC246
V+12V
0.1uFC249
25V1.0uFC247
6-13
Schematics
Achieva Ventilator Technical Manual
Schematic 6-12: Logic board—serial ADC
VSSA
EXT_BAT_VPIST_MTR_I
100k 6
ALARM_PWR_V
PWR_BUS_V
+10.0V_REF
VSSA
3.4V_WITH_24V_INPUT
4.99K 0.1uF
VSSA VSSA
VSSA
4.99KR97
C128
2.5V_WITH_10V_INPUT
R104
15kR103
R9834.0K
VSSA
NT328
0.1uFC140
0.1uFC129
1.0KR101
VSSA
NT331
LM358
-5V
4
1.0KR102
0.1uFC138
VSSA
1.0K
0.1uF
NT329
C136
NT315
BLWR_I_SENSE
MTR_CURRENT
ANX2
ANX3
ANX1
ANX0
NT314
VSSA
NT319
0.082uF
NT326
NT325
R106
VSSA
NT318
100k
R105
C139LM358
115K
8
5
U39B
7
12V
0.082uFC262
R225698KR221
-5V
R100
NT324 NT323
VSSA
0.1uFC135
NT320 4 2
31
12V
8U39A
1.0K
R99
NT321NT322
NT313
NT317NT316
R107
VDDA
332
VSSA
0.1uFC141
25V10uFC142
2ND_PRESSINT_BAT_I
O2_FLOW
0.1uFC137
PWR_BUS_SNS+10.0V_REF_SNS
ALRM_PWR_V
BLWR_MTR_I
VSSA
VDDA
NT330
AN5NT549
NT548NT547
NT546
PWR_BUS_SNS
O2_FLOW
ALRM_PWR_V
BLWR_MTR_IPIST_MTR_IEXT_BAT_V
2ND_PRESSINT_BAT_I
2ND A/D OVERVOLTAGE PROTECTION
4 5IN2VCC
MAD1103P
14GND
6
13 10
NC
NCNC
NC
1112
IN8IN7
9 8 7
IN6IN5IN4IN3
1
U37
3 2
IN1
1.0K12V
1.0K
VSSAVSSA
VDD
GND
VSSA
12V
DGND
VCC
VSS
V-
V+
+5V
VSSA
FOR U39
25V1.0uFC143
0.1uFC134
SCKMOSI
PCS0MISO
NT336
NT334
CS 7
AN5
12 11
ANX10
ANX8
NT418
VSSA
R308 R325
NT419
MC145051
AN10 VSSAN9
9AN8
8AN7AN6
VAG1013
14
AN1
6 5
AN4
4AN3
3AN2
DOUTDIN
SCLK
VREF
2 1
AN0EOCVDD
1617
15
18
VDDA1920
U38
FOR U38
VSSA
1.0uF
FOR U39
25V
NT337
C133
VSSA
C132
-5V
0.1uF
C1300.1uF
NT420NT335VDDA
1.0uF25V
C131
6-14
Schematics
Achieva Ventilator Technical Manual
Schematic 6-13: Logic board—serial ADC circuits
+10.0V_REF
EXT_BATT_VSNS-
EXT_BATT_VSNS+
0.1uFC147
0.1uF
U41B
90.9K
VSSA
R118
100KR114
-5V
10.0KR117
6
NT351
5
4
LM358
8
7
NT35012V
NT348
69.8KR120
69.8K
0.1uFC148
VSSA
C149
R11510.0K
NT345
10.0KR116
-5V
LM358
U41A
1 2
4
3
8NT344
+1V_REF
INT_BATT_ISNS-
INT_BATT_ISNS+
NT347
R119
NT352
NT339
R1111.0K
1.0KR110
NT346
NT340
12V
0.1uFC145
66.5KR109
NT338
4
LM358
-5V
U40A
2
3
8
1
12VNT341
66.5KR112
DGND-1V_REF
EXT_BAT_V
0.1uF
VSSA
C146
1.0KR113
ANX3
0.1uF1.0uF
GND VSS VSSA
VDDVCC +5V
-5V
12V
25V
V-
V+
FOR U41 C260
VSSA
FOR U41
VSSA
0.1uFC258
C261
25V1.0uFC259
0.1uFC144
VSSA
1.0KR108
INT_BAT_I ANX1
12V
-5V
FOR U40 C256
25V1.0uF
C2570.1uF
VSSA
VSSA
FOR U40
0.1uFC254
12V
C255
25V1.0uF
6-15
Schematics
Achieva Ventilator Technical Manual
Schematic 6-14: Logic board—DAC circuits
MTD3055EL1
.01uF
MTD3055EL1
0.8_OHMS
-5V
12V
4
8
NT358
SGND
SGND
0.25W
0.8_OHMSR127
1.0KR128
SGND
VSSA
25V0.33uF
49.9KR129
C330
1.0KR312
NT379
-5V
Q6
LM358
4 6
5
12V
8
7
NT376
U47B
VSSA
VSSA
100R130
-DISABLE_VLVS
R229100K NT366
VSSA VSSA
R313
VSSA
NT375
SGND
0.25W
0.4_OHMS
R124
1.78K
Q5
1.78KR228
49.9kR123
25V0.33uFC329
2NT372
3
NT368
BD9 D 4 15
332
R230
-CS_FE600VSSA
NT364
NT365
A0 OUTCA0
DGND
LDACWR
A1
7
A1
8 17
18
AGND3S
SV 6
OUTD23
D7D6D5D4D3D2D1
BD13 11
BD15BD14
19
9 10
BD12BD11BD10
12 13 14
2
OUTB
OUTA
24
1
REFDREFCREFB
2021
NT353
VDA
A[0..18]
BD[8..15]
MAX505_DAC
D0
U43
BD8 16
2
REFA
2
DV
5
VDDA
-5V 49.9k
NT362
NT367
NT356
1.37K
VSSASGND
0.33uF25V
R304C328
8
2
3
4
LM358
1
12VNT354
U42A
R303
NT355
12V_UNFIL
.001uF
NT380
SGND
C318
NT377
PN2222Q8
C334
R305
NT369SGND
.001uFC317
.01uF
PN2222
LM358
U47A
1
NT370
.01uFQ7
NT361
SGND
NT371
0.25W
C332
12V_UNFIL
5
SGND
MTD3055EL1Q10
-5V1.37K
R314
6
LM358
4
7
12VNT357
U42B8
NT359
12V_UNFIL
MBRS1100T3D9
NT378 BLOWER_O2-
BLOWER_O2+ SGND
0.1uFC335
25V10uFC336
MBRS1100T3D13
MBRS1100T3
NT373
D8
PN2222Q12
NT425
C331
12V_UNFIL
FOR U42
PISTON_O2-
C264
-5V
0.1uFC263
25V1.0uF
VSSA
FOR U42
PISTON_O2+APISTON_O2+B
1.0uFC156
VSSA
0.1uF 25V
12V
C157
PEEP_CNTRL-
PEEP_CNTRL+
BLWR_SPEED
MBRS1100T3
.01uF
.001uFC322
NT374
PN2222Q9
D10
NT360
C33312V_UNFIL
FOR U43
C151
VSSA
0.1uFC152
25V1.0uF
VDDA
GND
VCC
DGND
VSS
VDD +5V
VSSA V-
12V V+
6-16
Schematics
Achieva Ventilator Technical Manual
Schematic 6-15: Logic board—connectors and EMI filters
BACKGROUND MODE/DEBUG CONNECTOR
AC_PWR_ACTIVE
PGP2PGP1PGP0
GND 43
D14
NT576NT575
MDM_INTMDMPWR
4049
10K
GND
R323
GND GND
0.1uFC237
GND
47uH
PWR_BUS_V
0 0
5 4
U10B
NT583
-IRQ4
NT175L11
0.1uF
C239
-RD_MODEM
4.7uF_50VC236
NT401
-CS3
10uF_35V
GND
C238
-WR_MODEM
NT462
GND
3029
NT387
40393837363534333231
A1A2
A0
D15
2221
282726252423
2019181716151413
NT388
NT385MODEM_RUN
NT386
LCD CONNECTORS
BD14
LCD_LED+
BD[8..15]
D[0..15]
VCC
A[0..18]
L12
10uH
GND
NT383
1513
LCD_R/-W
NT382
CONTRASTLCD
R220
500_POT
NT406
GND3
BD12BD10BD8
11975
J22
1
J20
321
BD15
LCD_LED-
MODEM INTERFACE CONNECTOR
D13D12D11D10D9D8
1211109
8765
JP3
4321
1614
GND
10K
LCD_ENABLELCD_D/-I_SELECT
VCC4
BD13BD11BD9
1210
86
2
654
R326
VCC
GND-RESET
1086
975
JP5 R321
FET_SUPPLY
EXT_BATT_VSNS+
INT_BATT_ISNS+
BLWR_I_SENSE
CHGR_I_SENSE
INT_BATT_VSNS+
ANALOG TO POWER BRD CONNECTION
NT452
BLWR_SPEED
EXT_BATT_VSNS-
INT_BATT_ISNS-
MTR_CURRENT
INT_BATT_VSNS-
REF_PWR
PWR_BUS_VFET_SUPPLY-
NT405 NT446
65
1413
201918171615
1211109
87
INT_BATT+
JP4
4321
NT454NT463
PGP4
REV_BATT_LED_A-ALARM_WDOG
NT411
EXT_PWR_ACTIVE
-PC4
-PC6-PC5
PGP6-PC3
NT451NT450
-MTR_ENABLE
MTR_COMM4MTR_COMM3
EXT_24V
MTR_COMM2MTR_COMM1
STNDBY
VENTILATE_SW
+EXT_BATT_OFF
NT453+4V_INT
uP_HOLDON
NT381
NT403NT402
NT456
-WR
J1
21
NT458NT457
-VENT_MODE
-RMT_AUDIOOP_PANEL_PWR
STANDBY_SW1
+BLOWER_ON
-HI_CHRGR_LVL+CHARGER_ON
1615
2423
292725
302826
211917
222018
MTR_HALL3MTR_HALL2MTR_HALL1MTR_FLT
87
13119
141210
531
642
ENTER_SW
100K
-IRQ6
NT455
RUN_MODE
NT408
PCLK
NT459NT449NT447
NT572DIGITAL TO POWER BRD CONNECTION
NT573
IPIPE0IPIPE1
FREEZE-BKPT
NT466NT465
-BERR
NT467
25V
VSSA
NT397
GND
NT398
F10ANALOG GROUND FILTER
1 2
VSSA
VSSA
VSSA
NT393
NT391
-5V_UNFIL
10uH
L8
+12V_UNFIL
10uH_2
NT396
L5
10uH
VCC
L6
SGND
0.1uF
C208
0.1uF
C207
-5V @ .030A
F11
10uFC199
2 1
VSSA
F12
25V10uFC198
12V @ 0.85A 2 1
NT570
-5V
NT569 NT395
12V
VSSAVSSA
25V
VSSA
1.0uFC195
16V100uFC197
ANALOG POWER FILTER
GND
F8 1 2
VSS
VSSA
25V10uFC213
NT394
0.1uFC196
NT392
VDDA
VCC
NT399
GND
+5V_UNFIL
10uH
L7
14 13
NT509SGND
NT389
121086
11975
J3
42
31
F152 1
GND
VCC
GND
+5VVDD
0.1uF
C206
25V10uFC200
F9 2 1
25V10uFC214
DGND
NT400
GND GND
25V10uFC215
25V10uFC216
5V @ 0.280A
12V_UNFIL
NT390
NT510
+12V_UNFIL
-5V_UNFIL
+5V_UNFIL
+5V
-5V_UNFIL
INPUT POWER CONNECTORNT460 NT461
6-17
Schematics
Achieva Ventilator Technical Manual
Schematic 6-16: Logic board—connectors and modem port
109GND
EOT SENSOR CONNECTOR
EOT_LED+EOT_LED-
EOT_IN-EOT_IN+
F23
4
NT550 65
DGND
NT551
J4
321
NT552
ANX10ANX8
AN7AN6
RS232 CONNECTOR
RD-TD
DCD
-DTR 1
.001uFC319
RS485_B
RS485_A
NT415
1
1
2
F33
F32 2
7531
28642
J31
RI
DSR
CTS-RTS
.001uFC320
GNDGND
REMOTE ALARM CONNECTOR
-REMOTE_RESET
-RMT_AUDIBLE_ALRM-RMT_VISUAL_ALRM
NT416
NT567
GND8VREM
3
87654
J10
21
PISTON_O2+BPISTON_O2-PISTON_O2+A
BLOWER_O2-BLOWER_O2+PEEP_CNTRL-
864
753
PEEP_CNTRL+
J14
21
ALARM1-ALARM1+
ALARM CONNECTOR
21
J9
ANALOG METER
METER-METER+
21
J18
VSSGND
+5VVDDVCC
NT562VSSA
6543
J32
21
VSSA
PXDCR1_OUT
PRESS_LIMIT_SW
J26
UP_SWMODE_SW
VCC
VOLUME_SWINSP_TIME_SW
NT475
4
65
321
NT471NT469
NT473
NT470
OXYGEN_SWSENSITIVITY_SW
HIGH_PRESS_SWLOW_PRESS_SW
NT558
NT557
NT553
4
65
321
CONNECTORS TO LCD/SWITCH OVERLAY
NT480NT478 NT479
J27
NT481
-BAT_CHRG_ONBATT_TEST_SW
VCC-ASSIST_SPONT
-ALARM_CONTROL
PRIMARY PRESS TRANS 2ND PRESS TRANS
VSSA
PATIENT FLOW TRANS
FLSC1_OUTFLSC1+
PXDCR1+
NT561
NT560
PISTON O2 FLOW TRANS
87
16141210
1513119
531
642
FLSC2_OUTFLSC2+
PXDCR2_OUT+PXDCR2_OUT-
PXDCR2+
NT559
NT487
-PWR_SWITCH_OVER-SETTING_ERROR
-HI_PRESS
-LOW_POWER
-LOW_PRESS
NT489
1VCCMENU_ESC_SW
PEEP_SW
DOWN_SWBPM_SW
PRESSURE & FLOW TRANSDUCER CONN
J30
56
432 VENTILATE_SW
STANDBY_SW1
STANDBY_SW2
OP_PANEL_PWRENTER_SW
NT554NT512
NT483
ALARM_SIL/RESET_SW-AC_ON
-NO_OXYGEN
NT485
NT468
NT484
J28
NT490
654
NT482NT486
NT511
654
-EXT_BATT_ON-INT_BATT_ON
CONNECTORS TO LED/SWITCH OVERLAY
J23
321
J24
321
NT555
4
65
321
J29
NT488
VCC 654
J25
321
6-18
Schematics
Achieva Ventilator Technical Manual
Schematic 6-17: Power board schematic notes
1. ALL RESISTORS ARE IN OHMS, 1/10W, 1%
ALL CAPACITORS ARE IN MICROFARADS
NOTES: UNLESS OTHERWISE SPECIFIED
ANALOG SYSTEM
VDDA ANALOG CKTS +5V
V+ ANALOG CKTS FILTERED 12V
12V ANALOG CKTS FILTERED 12V
-5V ANALOG CKTS FILTERED -5V
VSSA ANALOG GND
POWER SYSTEM
PGND POWER ENTRY GROUND
SGND SWITCHER SUPPLY GROUND
MGND MOTOR GROUND
MPWR MOTOR POWER
+4V_INT ALWAYS ACTIVE 4 VOLTS
12VUNFIL DC-DC 12V OUTPUT
MOUNTING HOLES - HOLE SIZE 0.156"
HOLE CLEARANCE 0.5"
HOLE CLEARANCE NONE
HEATSINK MOUNTAIN HOLES - HOLE SIZE 0.156"
2. INTERNAL +4V POWER SUPPLY IS ACTIVE AS
LONG AS INTERNAL BATTERY IS PRESENT
3. 332 OHMS RESISTORS USED TO IMPROVE
TESTABILITY COVERAGE
4. RELATIONSHIP BETWEEN HALL SENSORS AND STATOR PHASING
0 1 1 0 - + 1 3
0 0 1 - 0 + 2 3
1 0 1 - + 0 2 1
1 0 0 0 + - 3 1
1 1 0 + 0 - 3 2
0 1 0 + - 0 1 2
5. SWITCHING FREQUENCY = 52KHz
REFERENCE DESIGNATORS NOT USED
D16, 21, 47, 55, 57
F1
C75, 76, 77, 78, 79
HOLE CLEARANCE NONE
HEATSINK MOUNTAIN HOLES - HOLE SIZE 0.095"
GND DIGITAL LOGIC GROUND
DIGITAL SYSTEM
VSS DIGITAL LOGIC GROUND
+5V DIGITAL LOGIC +5V
DGND DIGITAL LOGIC GROUND
VDD DIGITAL LOGIC +5V
VCC DIGITAL LOGIC +5V
VOLTAGE DEFINITION TABLE
VEE DIGITAL LOGIC GROUND
FIDUCIALS MARKINGS
S3 S2 S1 PH_A PH_B PH_C SINK SOURCE
1 111 11 1111
1
4
5
6
147
1
1
1 1
5
6
7
84
5
6
7
84
5
6
7
84
1
1
2
8
7
1
1
1
1
2
3
147
1 1
1
12
13
11
147
1
M3
ML
M4
ML
M13
M
M11
M
M12
M
R170
100K
M10
M
M18
M
R169
100K
M17
M
R81
1.0K
M15
M
R173
1.0K
M14
M
M9
M
U20B
74HC32D
M8
M
R172
1.0K
M16
M
R174
1.0K
M6
M
R171
1.0K
M7
M
U18B
LM393M
+
-
U17B
LM393M
+
-
U12B
LM358M
+
-
FD1
ISO1-1
PS2502-2
FD2
M5
M
FD3
U20A
74HC32D
FD4 FD5
M1
ML
U7D
74HC32D
M2
ML
R118
1.0K
FGND PGND
FGND
FGND
SGND
PGND
PGND
PGND
PGNDPGND
PGNDPGND
SGND
VCC
12VUNFIL
PGND
VCC
+5V
SGND
6-19
Schematics
Achieva Ventilator Technical Manual
Schematic 6-18: Power board—motor drive
MOTOR_PHASE_B
MOTOR_PHASE_C
MOTOR_PHASE_A
1W
TOGETHER NEAR JP3
50V
12
O104
O115
O126
O137
O2012
O2111
VDD
16
A12
B13
E11
A214
B213
E215
O2210
O239
VSS
8
VCC
1
FAULT8
CA-11
VSS
12
VB128
MO127
VS126
VB320
MO319
VS318
LO116
VB224
MO223
VS222
MN12
MN23
CAO10
MN34
LN15
LN26
LN37
LO215
LO314
NC117
NC221
NC325
ITRIP9
VS013
1
2
3
4
12
12
12
12
12
12
12
12
12
3
2
1
84
5
6
7
84
12
12
R108
1.50K
R190
2.0KR175
10K
D8
MURS120T3
R109
1.50K
C3
0.01
R186
20.0K
R184
2.49K
D9
MURS120T3
R110
1.50K
C106
1.0/35V
+
R94
100
D67
BAS16LT1
D69
BAS16LT1
C8
1.0/35V
+
Q1
MTP50N06ED2
MBRS1100T3
U2
MC14556B
C9
1.0/35V
+
U1
IR2130
C10
1.0/35V
+R97
100
JP1
TEST POINTS FOR MOTOR
R98
100
C16
0.1
R95
100
C2
0.1
R96
100
C13
0.01
D3
MBRS1100T3
Q4
MTP50N06EC4
0.01
D1
MBRS1100T3
R9
10
R74
20.0K
R4
47.5
D4
MBRS1100T3
C12
0.01
Q5
MTP50N06E
R13
0.05
C11
0.01
R7
47.5
R93
1.0K
Q6
MTP50N06E
C95
0.1
Q3
MTP50N06E
R11
10
C1
0.1
R6
47.5
R92
1.0K
C5
0.01
R187
5.36K
R91
1.0K
U21A
LM358M+
-
R8
47.5
R5
47.5
U21B
LM358M
+
-
R188
1.0K
D6
MBRS1100T3
C14
1200
+
R176
10K
R185
1.05K
C7
10/35V
+
D5
MBRS1100T3
R177
10K
C15
1.0/35V
+
R3
47.5
D68
BAS16LT1
R119
100K
C107
0.01
C6
0.1
R189
63.4K
R10
10
Q2
MTP50N06E
D7
MURS120T3
MGND
MGND
MGND
MGND
MPWR
VCC
MGND
MGND
12VUNFIL
MGND
VCC
MGND
VCC
MGNDMGND
VCC
MGND
MGND
VCC
MGND
MGND
12VUNFIL
MPWR
MGND
MGND
MPWR
MGND
MPWR
MGND
MGND
MGND
MGND
-5VUNFIL
RED
HALL_S3GRN
BLK
MTR_CURRENT
-PC4
HALL_S2YEL PGP1
HALL_S1BLU PGP0
-PC3
-MTR_ENABLE
WHT
PGP2
-PC6
-PC5
-IRQ6
6-20
Schematics
Achieva Ventilator Technical Manual
Schematic 6-19: Power board—power On/Off circuits
HDWR 2.3 SEC POWER DOWN
1 SEC POWER UP HOLD
4.7V
15V, 15W
PCLK
FOR U8FOR U7 FOR U6
VENTILATE SWITCH LATCH
FET CHARHE PUMP SUPPLY
27V
12
CK15
RC14
VSS8
+T12
Q10
Q9
VDD
16
-T11
R13
12
12
12
12
12
VIN8
FDBK7
SHTDN3
TAP6
SENS2
VOUT1
ERR5
GND4
2
3
1
147
3
4
6
5 12
12
CK1
RC2
VSS8
+T4
Q6
Q7
VDD
16
-T5
R3
9
10
8
147
8
9
10
147
C1+1
C1-7
C2+6
C2-2
VCC
8
VO5
PR3
GN
D4
12
1
2
3
147
12
12
12
1 2
4
5
6
147
11
12
13
147
1 2
12
5
6
4
147
R115
100K
C26
0.1R133
100K
U6-2
CD4538
D63
MMSZ5230BT1
D18
BAS16LT1
D17
BAS16LT1
D15
BAS16LT1
R34
1.33M
D24
1SMB5929BT3
C27
0.1
R40
10K
C29
0.1
C42
0.1
C25
0.01
R114
49.9K
C37
0.1
D23
MMSZ5254BT1
U9
LP2951ACM
R90
332
U8A
74HC02
ISO1-2
PS2502-2
C38
1.0/35V
+C41
1.0/35V
+
D22
BAS16LT1
R29
100K
C40
1.0/35V
+
C28
0.01
D56
BAS16LT1
R30
100K
R32
100K
R138
1.0K
R38
10K
R42
499_1W
R41
1.0M
C35
1.0/50V
+
R35
768K
C84
0.01
D19
BAS16LT1
U6-1
CD4538
R135
332
U7C
74HC32D
R28
100K
U8C
74HC02
U5
MAX622
C82
0.01
D20
BAS16LT1
C36
10/35V+
R101
20.0K
U7A
74HC32D
C39
0.1
R37
2.21K
R36
453K
R128
100K
R99
100
C32
3.3/16V
+
C83
0.01
R137
1.0K
C96
0.1
C34
3.3/16V
+
C33
3.3/16V
+
C31 0.047
R102
20.0K
U7B
74HC32D
U8D
74HC02
R33
590K
R39
10K
R127
100K
R31
100K
R43
2.0K
R136
1.0K
C24 0.047
C81
0.01
C30
1.0/35V
+
R100
100
U8B
74HC02
+5V
PGND
PGND
+5V
+5V
+4V_INT
PGND
PGND
+5V
PGND
PGND
PGND
+5V
PGND
+5V
+5V
PGND
PGND
PGND
+5V
+5V
PGND
+5V
PGND
PGND
+5V
PGND PGNDPGNDPGND
PGNDPGND PGND
PGND
PGNDPGND
PGNDPGND
PGND
FET_SUPPLY
PGND
PGND
+5V
PGND
+5V
PGND
+5V
+4V_INT
PGND
PGND
PGNDPGNDPGND
STNDBY
UP_HOLDON
-ALARM_WDOG
COMBINED_PWR
STANDBY_SW1
ENTER_SW
SW_SUPPLY+
VENTILATE_SW
-VENT_MODE
VENT_MODE
PWR_BUS
FET_SUPPLY-
6-21
Schematics
Achieva Ventilator Technical Manual
Schematic 6-20: Power board—switching power supplies
15V
29.0VDC/0.5Amps MAX
FOR U12
15V15V, 15W
5V @ 0.280A
5V @ 0.280A
BATTERY CHARGER SUPPLY
INPUT 11V MIN TO 35V MAX
CHARGER CURRENT LIMIT
CURRENT LIMIT @ 0.5 AMP
CHARGER CURRENT SENSE
VO = 3.25VDC @0.5 AMP
100V
100V
600V 4A
600V 1A
1 2
12
3
4
14
7
10
11
12
3
2
1
84
FB2
COMP1 IN
5
GN
D3
SW4
3
4
6
5
12
11
22
FB2
COMP1 IN
5
GN
D3
SW4
12
1
12
12
12
12
12
4
6
14
7
10
11
1
2
3
12
1
2
8
7
R52
499
C63
0.01
D34
1SMB5929BT3
D27
BAS16LT1
C45
0.1
D29
MURS120T3
R53
1.3K_.25W
C49
1.0/50V
+
C47
4.7/50V
+
D37
MBR3100
R61
6.19K
T1
R51
499
C85
0.1
C57
820/35V
+
D32
MURS120T3
D31
MDRD360
U12A
LM358M
+
-
R44
1.50K
R103
24K_1W
L3
10uH_1
D38
MURS120T3
L5
47uH_4
D26
MURS120T3
C54
1.0/35V
+
C64
4.7/50V
+
C44
10/35V
+
U11
LM2577T-ADJ
D58
MURS160T3
FS2
3.15A
R45
2.21K
ISO2-2
PS2502-2
L6
47uH_4
C56
0.047
C46
1.0/50V
+
R47
3.74K_.5W
C52
100/50V
+
D30
MDRD360
F2
C58
1.0/35V
+
C66
1.0/35V
+
C48
4.7/50V
+
U10
LM2577T-ADJ
D28
BAS16LT1
C43
0.1
R116
1.0M
D35
MUR460
L4
47uH_4
R130
100K
Q7
MTP75N05HD
NT217
C65
0.1
R58
10K
R49
1.62M
R129
1.62M
R88
1.0K_POT
C59
100/50V+
R46
7.50K
C61
0.047
R48
100K
R54
16.9K
R63
49.9K_.25W
R57
100K
R59
165K
C53
100/50V
+
R104
10K
C62
0.1
R50
0.05_.5W
D25
MBRS1100T3
C60
0.1R62
2.0K
D60
MMSZ5245BT1
C50
0.1
D33
MMSZ5245BT1
T2
R55
64.9K
D36
MBRS1100T3
C55
0.047
R60
49.9K
R89
64.9K
ISO2-1
PS2502-2
C51
1500/35V
+
FET_SUPPLY
12VUNFIL
SGND SGND
SGND
SGND
SGND
SGND
SGND
SGNDSGND
SGND
SGND
SGND
12VUNFIL
SGND
SGND
SGNDSGND SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
VCC
SGND
12VUNFIL
SGND
-5VUNFILSGND
VCC
SGNDSGND
SGND
SW_EXT_BATT-
SW_SUPPLY+
CHG
CHGR_I_SENSE
+CHARGER_ON
+HI_CHRGE_LVL
REF_PWR
PWR_BUS
6-22
Schematics
Achieva Ventilator Technical Manual
Schematic 6-21: Power board—system power entry
27V
1/4W
POWER INPUT GROUND
MOTOR GROUND
DC-DC SUPPLY GROUND
.25W
.25W
21
48
1
2
3
21
5
6
4
3
21
48
7
6
5
714
11
13
12
21
1
48
1
2
3
22
11
1
21
7
8
2
1
714
8
10
9
22
11
1
48
1
2
3
21
22
11
2G
ND
1VOUT
3VIN
48
1
2
3
22
11
48
7
6
5
21
21
21
4GND
5ERR
1VOUT
2SENS
6TAP
3SHTDN
7FDBK
8VIN
PGND
SW_SUPPLY-
MGND
SGND
FET_SUPPLY-
INT_BATT_ISNS+
INT_BATT_ISNS-
INT_BATT_VSNS-
CHG
COMBINED_PWR
CP_PANEL_PWR
EXT_BATT_VSNS+
EXT_BATT-
EXT_BATT+
+EXT_BATT_0FF
SW_EXT_BATT+
EXT_24V
EXT_PWR_ACTIVE
AC_PWR_ACTIVE
SW_SUPPLY+
INT_BATT_VSNS+
INT_BATT-
INT_VATT+
PWR_BUS
PWR_BUS
VCC
LTD_COMBINED_PWR
COMBINED_PWR
PGND
MPWR
MGND
SGND
PGND
PGND
PGND
+8V
PGNDPGND
PGND
LTD_COMBINED_PWR +5V
PGNDPGND
PGND
PGND
PGND
SGND
+8V
PGND
VREF
VCC
SGND
+8V
PGND
VREF
VCC
VREFSGND
+8V
PGND
VCC
VREF
+8V
+8V
PGND
PGND
PGND
PGND
VCCFET_SUPPLY
PGND
+5V
PGND
PGNDVREF
PGND
PGND
PGND
FET_SUPPLY
PGND
PGND
+8V
PGND
PGND
VREF
VCC
MM
SZ52
45BT
1
D66
0.1
C67
61.9K
R182
MTP
75N
05H
D
Q11
3.92K
R166
61.9K
R181
-
+
LM393M
U16A
24.3K
R164
MBRS1100T3
D49
0.01
C87
137K
R159
49.9K
R147
196K
R153
169K
R168
+
10/16V
C105
102K
R140
3.92K
R167
.01_1W
R80
PS2502-2
ISO3-2
10K
R156
249
R84
22.1K
R152
10K
R155
0.01
C108
-
+
LM393M
U19B
61.9K
R180
10K
R157
100K
R143
MBRS1100T3
D48
74HC32D
U20D
MTP
75N
05H
D
Q9
182K
R154
MBRS1100T3
D65
61.9K
R178
6.3A
FS3
BAS16LT1
D72
TP3
49.9K
R146
100K
R144
-
+
LM393M
U17A
F3
100
R160
MTP
75N
05H
D
Q10
LM4040AIM3-4.1
U15
TP2
MR752
D52
BAS16LT1
D71
1SMB24AT3
D43
100K
R149
49.9K
R162
38.3K
R158
499
R183
MM
SZ52
45BT
1
D53
549K
R161
61.9K
R179
MMSZ5254BT1
D70
PS2502-2
ISO3-1
74HC32D
U20C
16.2K
R139
MTP
75N
06H
D
Q8
+
10/16V
C109
F5
TP1
-
+
LM393M
U19A
0.01
C103
F6
10K
R141
LP2950CZ-5.0
U13
100K
R145
24.3K
R165
+
0.33/50V
C102
6.3A
FS4
-
+
LM393M
U18A
F4
MBRS1100T3
D50
1SMB33CAT3
D51
49.9K
R163
-
+
LM393M
U16B
MBRS1100T3
D64
316K
R151
0.01
C90
0.01
C88
0.01
C89
49.9K
R148
174K
R150
LP2951ACM
U14
8.06K
R82
+
1.0/50V
C104
+
1.0/50V
C68
100K
R142
6-23
Schematics
Achieva Ventilator Technical Manual
Schematic 6-22: Miscellaneous Circuitry
NURSE CALL RELAY CIRCUIT
3V MIN TO 35V MAX
RELAY DPDT
12
12
8
7
9
3
4
2
1
10
Q12
MTD3055EL1
R111
100K
C92
0.01
FS1
3.15AC19
0.1
R112
10K
C17
4.7/50V
+
D11
MURS120T3
L1
47uH_ 3
K1
TQ2E_12V
C20
390/50V
+
D59
MURS120T3
SGND
SGNDSGND
PGND
PGND
RELAY_PWR
NURSE_CALL+
NURSE_CALL_NC
PWR_BUS
-RMT_AUDIO
NURSE_CALL_NO
6-24
Schematics
Achieva Ventilator Technical Manual
Schematic 6-23: Power board—connectors and EMI filters
MTR_HALLS2MTR_COMM4
MTR_HALLS3
MTR_FLT
MTR_COMM3
MTR_COMM1
RUN_MODE
MTR_HALLS1
MTR_COMM2
+5V_UNFIL
+12V_UNFIL
-5V_UNFIL
GND
HALL SENSORS CONNECTOR
NURSE CALL ANNUNCIATOR
MOTOR DRIVE
EXTERNAL POWER CONNECTOR
12
11
22
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
11
22
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
12
12
34
56
78
910
1112
1314
12
1
2
3
4
5
6
1
2
3
4
5
6
12
11
22
1
24
3
12
1
24
3
12
11
22
11
22
12
11
22
11
22
11
22
11
22
2
1
3 4
12
12
12
12
C70 0.001
F7
JP4
DIGITAL TO POWER BRD CONNECTOR
F13
JP3
ANALOG TO POWER BRD CONNECTOR
C97
0.01
J5
OUTPUT POWER CONNECTORC73
0.1
J7
CON6
J3
CON6
C91
0.1
F12
J9
INTERNAL BATTERY CONNECTOR
F16
J2
CON4A
C100
0.01
J1
CON4A
C98
0.01
F14
F11
C99
0.01
F15
F8
F10
F9
S1
SW DPDT-ALT
C69
0.001C71 0.001
C72 0.001C74 0.001
VCC
MGND
MGND
MGND
MGND
SGND
PGND
VCC 12VUNFIL -5VUNFIL
12VUNFIL
+4V_INT
FET_SUPPLY
F_SW_SUPPLY+
F_SW_SUPPLY-
F_EXT_BATT+
F_EXT_BATT-
F_MOT_PHASE_A
F_MOT_PHASE_B
F_MOT_PHASE_C
SW_SUPPLY+
SW_SUPPLY-
EXT_BATT+
EXT_BATT-
MOT_PHASE_A
MOT_PHASE_B
MOT_PHASE_C
MGND_FIL
VCC_FIL
MALL_GND_FIL
F_SW_SUPPLY+
F_EXT_BATT+
F_SW_SUPPLY-
F_EXT_BATT-
INT_BATT+INT_BATT-
F_MOT_PHASE_B
F_MOT_PHASE_A
F_MOT_PHASE_C
MGND_FIL
RELAY_PWR
NURSE_CALL+
EXT_BATT_VSNS+
PGP0
PCLK
REF_PWR
ENTER_SW
INT_BATT_VSNS-
-ALARM_WDOG
EXT_BATT_VSNS-
FET_SUPPLY-
-VENT_MODE
EXT_24V
INT_BATT_ISNS-
VENTILATE_SW
PGP2
-IRQ6
CHGR_I_SENSE
OP_PANEL_PWR
EXT_PWR_ACTV
-PC5
-PC4
UP_HOLDON
INT_BATT_ISNS+
-RMT_AUDIO
-MTR_ENABLE
INT_BATT_VSNS+
-HI_CHRGR_LVL
+EXT_BATT_OFF
MTR_CURRENT
INT_BATT+
-PC6
+CHARHER_ON
-PC3
PGP1
AC_PWR_ACTIVE
PWR_BUS
STND_BY
STANDBY_SW1
NURSE_CALL_NO
NURSE_CALL_NC
HALL_S1
VCC_FIL
HALL_S2
HALL_GND_FIL
HALL_S3
6-25
Schematics
Achieva Ventilator Technical Manual
Drawing 6-1: Ventilator assembly drawing
6-26
Schematics
Achieva Ventilator Technical Manual
Drawing 6-2: Ventilator assembly drawing
6-27
Schematics
Achieva Ventilator Technical Manual
Drawing 6-3: Rear panel assembly drawing
6-28
Schematics
Achieva Ventilator Technical Manual
Drawing 6-4: Right end assembly drawing
6-29
Schematics
Achieva Ventilator Technical Manual
Drawing 6-5: Right end assembly drawing
6-30
Schematics
Achieva Ventilator Technical Manual
Drawing 6-6: Front panel assembly drawing
6-31
Schematics
Achieva Ventilator Technical Manual
Drawing 6-7: Piston assembly drawing
6-32
Schematics
Achieva Ventilator Technical Manual
Drawing 6-8: Manifold assembly drawing
6-33
Schematics
Achieva Ventilator Technical Manual
Drawing 6-9: Power supply assembly drawing
6-34
Schematics
Achieva Ventilator Technical Manual
(This page intentionally blank.)
7-1
Achieva Ventilator Technical Manual
Chapter 7: Service
This chapter provides service information and the limited warranty.
Service information
Achieva ventilators are warranted against defects in workmanship and materials. The full textof the warranty provides the details. Do not make any service repairs on this equipment duringthe stated warranty period. Any unauthorized work immediately voids the warranty. If youneed information or assistance, or if the information in this manual is insufficient, contactPuritan Bennett at: 1.800.255.6774
Puritan Bennett does not recognize the owner of a ventilator as an authorized trained servicerepresentative. Puritan Bennett will not be liable for any repairs attempted by the owner. Anysuch attempted repairs other than specified non-warranty repairs void the warranty. Parts andlabor costs incurred by the owner will not be reimbursed by Puritan Bennett. Puritan Bennettwill make available on request: diagrams, component parts lists, descriptions, calibrationprocedures and instructions to assist in the repair of parts classified by Puritan Bennett asrepairable.
Before returning any device to Puritan Bennett you must get a Return Authorization Numberby calling Puritan Bennett at the number listed above.
7-2
Service
Achieva Ventilator Technical Manual
Limited warranty
Puritan Bennett warrants to the owner that the Achieva ventilators, exclusive of expendableparts and other accessories, shall be free from defects in material and workmanship fortwenty-four months from the original date of sale. Puritan Bennett’s sole obligation, withrespect to any such defect, is limited to the repair or, at Puritan Bennett’s option, replacementof the ventilator. Purchaser pays return freight charges.
This warranty is made on the condition that prompt notification of a defect is given to PuritanBennett within the warranty period, and that Puritan Bennett has the sole right to determinewhether a defect exists.
This warranty is conditional on the performance of Preventive Maintenance at a minimum ofonce every 6000 operating hours, or recertification every twelve (12) months (whicheveroccurs first) by service personnel qualified by Puritan Bennett. The warranty does not apply toventilators that have been partially or completely disassembled; altered; subjected to misuse,negligence, or accident; or operated other than in accordance with the instructions provided byPuritan Bennett. This includes repair by trained personnel.
This warranty represents the exclusive obligation of Puritan Bennett and the exclusive remedyof the purchaser regarding defects in the ventilator.
THIS WARRANTY IS GIVEN IN LIEU OF ANY EXPRESS OR IMPLIEDWARRANTIES, INCLUDING ANY WARRANTY OF MERCHANTABILITY ORFITNESS FOR A PARTICULAR PURPOSE.
No person is authorized to modify, in any manner, Puritan Bennett’s obligation as describedabove.
A-1
Achieva Ventilator Technical Manual
Appendix: Oxygen Adapter Assembly
Canadian1. Remove the cover from the oxygen port (on the rear panel).
2. Attach the adapter to the oxygen port.
3. Attach the hose to the adapter.
A-2
Appendix: Oxygen Adapter Assembly
Achieva Ventilator Technical Manual
Dräger 1. Remove the cover from the oxygen port (on the rear panel).
2. Attach the hose to the port.
A-3
Appendix: Oxygen Adapter Assembly
Achieva Ventilator Technical Manual
Australian 1. Remove the cover from the oxygen port (on the rear panel).
2. Apply PTFE thread sealing tape to the threads on the oxygen port. Do not apply tape to the two threads closest to the end of the port. Wrap the tape clockwise around the oxygen port. Wrap the tape around the port five full turns.
3. Attach the adapter to the oxygen port.
4. Attach the hose to the adapter.
A-4
Appendix: Oxygen Adapter Assembly
Achieva Ventilator Technical Manual
NIST
1. Remove the cover from the oxygen port (on the rear panel).
2. Apply PTFE thread sealing tape to the threads on the oxygen port. Do not apply tape to the two threads closest to the end of the port. Wrap the tape clockwise around the oxygen port. Wrap the tape around the port five full turns.
3. Attach the adapter to the oxygen port.
4. Attach the hose to the adapter.
A-5
Appendix: Oxygen Adapter Assembly
Achieva Ventilator Technical Manual
UK 1. Remove the cover from the oxygen port (on the rear panel).
2. Attach the adapter to the oxygen port.
3. Attach the hose to the adapter.
A-6
Appendix: Oxygen Adapter Assembly
Achieva Ventilator Technical Manual
French 1. Remove the cover from the oxygen port (on the rear panel).
2. Apply PTFE thread sealing tape to the threads of the oxygen port. Do not apply tape to the two threads closest to the end of the port. Wrap the tape clockwise around the oxygen port. Wrap the tape around the port five full turns.
3. Attach the adapter to the oxygen port.
4. Attach the hose to the adapter.
I-1
Achieva Ventilator Technical Manual
IndexA
AC line power 2-2AC power 3-4Accessories 5-1Alarm
Low pressure 2-11Power 4-13Setting error 3-13Sounds 3-13
Alarm control light 2-6Alarm lights 2-5Alarms
Internal battery 2-30Alcohol 5-1Arrow keys, up and down 2-8Assist/Control Mode 2-19Assist/Control mode 2-15Assist/Spontaneous light 2-6Assisted breath 2-10Audible alarm 3-16, 3-17Audible alarms 2-30
B
Back and sides of ventilator case 2-13Bacteria filter 3-2Battery 2-2
Charging 2-2External 2-2, 3-5Internal 2-2, 3-10
Breath rate 2-10Breath Rate setting 2-17
C
Calibration and testing 3-1Caregiver 2-2Caution, explanation of 1-2Cleaning and sterilization 5-1Components 4-1Components, operation 4-3Connectors specifications 2-32Continuous Positive Airway Pressure 2-27Contra-Indications 2-1Contra-indications 2-4Controls 2-1Controls specifications 2-31Conventions 1-3CPAP 2-27
D
DataStorage of 4-5
DC power 2-33Description 1-1, 2-1, 3-1Display and controls, ventilator 2-2
E
Ethylene oxide 5-1ETO 5-1expiratory sensitivity level 2-19External battery 3-4External power source 4-11
F
FCC Part 68 Information 2-35Features 2-3Features of Achieva ventilators 2-1Flow 2-12
I-2
Index
Achieva Ventilator Technical Manual
Flow and valves 4-1Front panel 2-4Fuse, changing 5-5
H
High pressure 3-4
I
Indications for use 2-1Input, external DC 4-12Input, internal battery 4-12Inputs, digital 4-8Inspiratory 3-13Inspiratory flow acceleration 2-19inspiratory pressure 2-19Inspiratory times 3-4Intended use 2-1Internal Battery 2-30Internal battery charger 4-12Internal battery operation 4-11Invalid I/E ratio 2-30
L
LightsAlarm control 2-6Assist/Spontaneous 2-6
Logic boardAlarm and monitor circuits 6-8DAC circuits 6-15Flow sensor circuits 6-11LED indicators/controls 6-6Memory/address select 6-4Miscellaneous digital I/O 6-7Notes for schematics 6-2Pressure sensor circuits 6-10
Primary ADC circuits 6-12Serial ADC 6-13Switch inputs 6-5
Low internal battery alarm 2-30Low pressure 2-11Low pressure alarm 2-11
M
Maintenance 5-1Maintenance, periodic 5-7Maintenance, tools and equipment 1-4Mandatory volume breaths 2-21MEK 5-1Menu
Options 2-8Selections 3-6
Meter, battery charge level 2-2Meter, patient pressure 2-6Micro-controller 4-4Micro-controller I/O ports 4-9Miscellaneous specifications 2-34Mode 3-10Modem
External 2-14Modem connector 2-14Modem controller 4-8Modem, FCC and telephone company 2-35Motor drive control 4-5
N
Nonlatching 2-30Note, explanation of 1-3
O
O2 fail alarm 4-3
I-3
Index
Achieva Ventilator Technical Manual
O2 Level 2-32Outputs, digital 4-8Oxygen 4-3Oxygen adapters A-1Oxygen alarm 4-3
P
Panel, front 2-4Patient circuit 3-1, 3-2, 3-7Patient circuit and equipment 3-8Patient pressure meter 2-6Patient pressure tube 2-33PEEP 2-10Periodic maintenance 5-1, 5-7Pneumatic diagram 4-2Pneumatic test 3-6Power
ACDC 4-11
Power boardConnectors and EMI filters 6-24Motor drive 6-19Notes ventilator schematic 6-18Power on/off circuit 6-20Switching power supplies 6-21System power entry 6-22
Power cord 5-5Power cord connector 5-5Power distribution 2-2, 4-12Power lights 2-6Power system 2-2Power system control 4-13Power, system 4-9Presilence audible alarm 2-6Pressure control 2-3, 2-10Pressure support 2-10, 3-16, 3-17
Pressure trigger 2-10Pressure-supported breaths 2-25
R
Real-time clock 4-5REN 2-35Right end assembly drawing 6-28Ringer equivalence number (REN) 2-35
S
Self-test 3-6Service information 7-1SIMV mode 2-21, 2-23, 3-14Specifications 2-29Spontaneous mode 2-25Standard compliance 2-35Sterilization 5-1Supplemental 4-3System analog control 4-7System analog monitoring circuitry 4-6System memory 4-5
T
Telephone company and modem 2-36Telephone cord 2-36Theory of operation 4-1Trichloroethylene 5-1
U
Up and down keys 2-31User
Self-test 1-1, 2-30USOC jack 2-35
I-4
Index
Achieva Ventilator Technical Manual
V
VentilatorMode 3-4
Ventilator mode 3-1Ventilator modes and apnea 3-13, 3-15Ventilator operation 3-1Visual alarm 3-10Volume breaths 3-12–3-13Volume change 3-11Volume error alarm 3-12
W
Warning, convention 1-3Warranty 7-1Warranty considerations 1-3Waveforms 2-15–2-27
Tyco Healthcare Group LP
Nellcor Puritan Bennett Division
4280 Hacienda Drive
Pleasanton, CA 94588
Toll Free: 1.800.NELLCOR
Authorized Representative:
Tyco Healthcare UK LTD
154 Fareham Road
Gosport PO13 0AS, U.K.
Rx ONLY
© 2004 Nellcor Puritan Bennett, Inc. All rights reserved. 066477A-0204