A pump control index for reducing suction and backflow effect caused by the portable centrifugal blood pump

Author

Lin, Y.H. ; Chou, N.-K. ; Chen, Y.-Y. ; Jan, G.J.

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

1

fYear

2001

fDate

2001

Firstpage

465

Abstract

In this experiment, the centrifugal Taita No.1 left ventricular-assist device was implanted in a calf. The blood pump was driven by constant voltage with the open-loop control method. The pump inflow flow and pump outflow pressure were recorded and analyzed synchronously. According to the status of aortic valve and mitral valve, the cardiac cycle was divided into four stages. The flow in each stage was calculated and an optimal pump control index was obtained. The index suggests an optimal applied voltage of the pump for reducing suction and backflow effects.

Keywords

artificial organs; biocontrol; cardiology; flow control; haemodynamics; pumps; Taita No.1 centrifugal blood pump; aortic valve; backflow effect; calf; cardiac cycle; constant voltage; left ventricular-assist device; mitral valve; open-loop control method; optimal applied voltage; optimal pump control index; portable centrifugal blood pump; pump control index; pump inflow flow; pump outflow pressure; suction reduction; Animals; Biomedical monitoring; Blood; DC motors; Open loop systems; Optimal control; Valves; Velocity control; Virtual manufacturing; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7211-5

Type

conf

DOI

10.1109/IEMBS.2001.1018966

Filename

1018966