View
216
Download
0
Category
Tags:
Preview:
Citation preview
Fysisk institutt - Rikshospitalet1
Fysisk institutt - Rikshospitalet2
Electric current,perception- and hazard
thresholds
Fysisk institutt - Rikshospitalet3
Electrovibration (1uA 50Hz)
skin
conductor
Fysisk institutt - Rikshospitalet4
Statistical scattering of sensitivity for electric current
Fysisk institutt - Rikshospitalet5
Frequency dependency and spread of the let-go
threshold
Fysisk institutt - Rikshospitalet6
Ventricular fibrillation thresholds in animals
Fysisk institutt - Rikshospitalet7
Macro- og microshock
Fysisk institutt - Rikshospitalet8
Electromedical devices must be CE-marked (Europe)
in out signal
patient(applied part)
power lineElectromedical
equipment(device)
?
protective earth (PE)
Fysisk institutt - Rikshospitalet9
Patient near PC (B-apparatus)
signalspatient(applied part)
power line
A B
power line
?
signals(med.) (non-med.)
PE PE
Fysisk institutt - Rikshospitalet10
American electric power distribution
Fysisk institutt - Rikshospitalet11
4-leads (norske), og 5-leads (europeiske) electrical circuits
fra ”Medisinsk-teknisk sikkerhet på sykehus” Grimnes&Jensen 2003
Fysisk institutt - Rikshospitalet12
Isolated system
Fysisk institutt - Rikshospitalet13
Macroshock due to
ground fault
Fysisk institutt - Rikshospitalet14
Microshock, two error situations
Fysisk institutt - Rikshospitalet15
Ventricular fibrillation and pump failure vs catheter
area
Fysisk institutt - Rikshospitalet16
Micro-shock
Fysisk institutt - Rikshospitalet17
System forgrounding
Fysisk institutt - Rikshospitalet18
Ground fault
circuit-interupter
Fysisk institutt - Rikshospitalet19
FloatingPatient
Fysisk institutt - Rikshospitalet20
Electrical isolation
Fysisk institutt - Rikshospitalet21
Electric isolation
Fysisk institutt - Rikshospitalet22
Isolated pressure transducer
Fysisk institutt - Rikshospitalet23
Receptacles tests
Fysisk institutt - Rikshospitalet24
Ground pin to chassis test
Fysisk institutt - Rikshospitalet25
Chassisleakage
cuttent test
Fysisk institutt - Rikshospitalet26
Patient leakage
current test
Fysisk institutt - Rikshospitalet27
Leakage current between patient
leads
Fysisk institutt - Rikshospitalet28
Isolation test for AC isolation
Recommended