Title :
An optimal controller for an electric ventricular-assist device: Theory, implementation, and testing
Author :
Klute, Glenn K. ; Tasch, Uri ; Geselowitz, David B.
Author_Institution :
NASA Johnson Space Center, Houston, TX, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
The authors address the development and testing of an optimal position feedback controller for the Penn State electric ventricular-assist device (EVAD). The control law is designed to minimize the expected value of the EVAD´s power consumption for a targeted patient population. The closed-loop control law is implemented on an Intel 8096 microprocessor, and in vitro test runs show that this controller improves the EVAD´s efficiency by 15-21% compared with the performance of the currently used feedforward control scheme.
Keywords :
artificial organs; cardiology; controllers; Intel 8096 microprocessor; Penn State; closed-loop control law; electric ventricular-assist device; feedforward control scheme; optimal controller; power consumption; targeted patient population; Adaptive control; Batteries; Blood flow; Control systems; DC motors; Energy consumption; Heart; Optimal control; Pulse width modulation; Testing; Computers; Evaluation Studies as Topic; Feedback; Heart-Assist Devices; Humans; Microcomputers; Models, Theoretical; Software Validation; Therapy, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
