PMID: 29763537Mar 1, 2016Paper

The Simulation Experiment of Control System for Left Ventricular Assist Device

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
Zongtao WangZeliang Fu

Abstract

To test the accuracy, the reliability and the stability of flow-controlling method of a new percutaneous left ventricular assist device. With the AMEsim to set up a simulation model, analysis the variations of motor speed, flow and pressure by adjusting the size of valve. and we test the improved-theoretical model with outside experiment. In the simulation experiment, with the variations of pressure from A, the system can regulate the motor speed to maintain the pump outlet pressure 1.1×105 Pa~1.2×105 Pa and control the flow. With the B valve size changes, the flow-controlling by the system identify and change the motor speed, to maintain the pump inlet pressure from-0.25×105 Pa to-0.10×105 Pa. In outside experiment, with the variations of the size of valve A and valve B, the pump can change the voltage by self-regulation, maintain the entrance and exit of pressure is relatively stable and control the flow. It is a fast-responding and better robust way, by adding the pressure sensor to adjust the speed of motor, to control the flow accurately.

Related Concepts

Related Feeds

Artificial Heart & Ventricular Assist Devices

Total artificial hearts (TAH) and ventricular assist devices (VADs) provide cardiac support for patients with end-stage heart disease and have significantly improved the survival of these patients. Discover the latest research on Artificial Heart and Ventricular Assist Devices here.

Related Papers

Transactions - American Society for Artificial Internal Organs
H TakagiT Akutsu
Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Joshua CysykGerson Rosenberg
Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs
Hirohito SumikuraEisuke Tatsumi
Journal of Social Work in End-of-life & Palliative Care
Elizabeth Paula Cramer
European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery
So-Hyun Jansen-ParkGero Tenderich
© 2022 Meta ULC. All rights reserved