Oswaldo HORIKAWA1983 Mechanical Engineer

Escola Politécnica1985~87 Master Course

Tokyo Inst of TechnologyProf. Akira Shimokohbe

1987~91 Doctoral CourseTokyo Inst of TechnologyProf. Akira Shimokohbe

1991~92 Research AssociateTokyo Institute of Technology

1992~now Associate ProfessorDep. of Mechatronics EngineeringEscola Politécnica – Univ. of São Paulo

Development of implantable VAD

Joint project: Escola Politécnica and the Dante Pazzanese Institute of Cardiology

Development of an implantable VAD (Ventricular Assist Device

One of goals: rotor suspended by magnetic bearing

Use of the EPUSP bearing. Simplicity Reliability

amplifier

position sensor

magnets electromagnets

rotor

base

controller

NS NS

SN SN

Zr

z

x

y

α

β

γ Silva and Horikawa, 2000: Proposition of a single axis controlled, attraction type magnetic bearing

sensor demodulator

A/D – D/A board

amplifier

rotor

to the computer

actuator actuator

Improvements in the EPUSP bearing stiffness

Propotype / most recent topology

rotor

magnets

actuator sensing

coil

Most recent topology

Proposition of various topologies

BODY

COVER

ROTOR

magnet (bearing)

impellers

magnets (motor)

actuator, magnet and sensor

magnet (bearing)

magnet (bearing)

Prototype of VAD using EPUSP bearing

VAD prototype: its components

VAD prototype: assembled

Other projects ongoing:Other projects ongoing:

•Non conductor manipulator Non conductor manipulator (for (for power companies and for rehabilitation)power companies and for rehabilitation)

•Robotics in the maintenance of Robotics in the maintenance of electric power distribution network electric power distribution network (national project - ANEEL)(national project - ANEEL)

•Hospital pharmacy automation Hospital pharmacy automation (EPUSP – University Hospital – Faculty of (EPUSP – University Hospital – Faculty of Pharmaceutical Sciences)Pharmaceutical Sciences)

Other projects ongoing:Other projects ongoing:

•Non conductor manipulator Non conductor manipulator (for (for power companies and for rehabilitation)power companies and for rehabilitation)

•Robotics in the maintenance of Robotics in the maintenance of electric power distribution network electric power distribution network (national project - ANEEL)(national project - ANEEL)

•Hospital pharmacy automation Hospital pharmacy automation (EPUSP – University Hospital – Faculty of (EPUSP – University Hospital – Faculty of Pharmaceutical Sciences)Pharmaceutical Sciences)