Physiological Control of Implantable Rotary Blood Pumps for Heart Failure Patients

被引：0

作者：

Bakouri, Mohsen A. ^{[1
]}

Salamonsen, Robert F. ^{[2
,3
]}

Savkin, Andrey V. ^{[1
]}

Alomari, Abdul-Hakeem H. ^{[4
]}

Lim, Einly ^{[5
]}

Lovell, Nigel H. ^{[6
]}

机构：

[1] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

[2] Monash Univ, Dept Epidemiol & Prevent Med, Clayton, Vic 3800, Australia

[3] Alfred Hosp, Intens Care, Melbourne, Vic, Australia

[4] Univ Dammam, Dept Biomed Engn, Dammam 31451, Saudi Arabia

[5] Univ Malaya, Dept Biomed Engn, Kuala Lumpur, Malaysia

[6] Univ New South Wales, Grad Sch Biomed Engn, Sydney, NSW 2052, Australia

来源：

2013 35TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2013年

基金：

澳大利亚研究理事会;

关键词：

STRUCTURE CONTROL-SYSTEMS;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In general, patient variability and diverse environmental operation makes physiological control of a left ventricular assist device (LVAD) a complex and complicated problem. In this work, we implement a Starling-like controller which adjusts mean pump flow using pump flow pulsatility as the feedback parameter. The linear relationship between mean pump flow and pump flow pulsatility forms the desired flow of the Starling-like controller. A tracking control algorithm based on sliding mode control (SMC) has been implemented. The controller regulates the estimated mean pulsatile flow ((Q) over bar (p)) and flow pulsatility (PIQp) generated from a model of the assist device. A lumped parameter model of the cardiovascular system (CVS) was used to test the control strategy. The immediate response of the controller was evaluated by inducing a fall in left ventricle (LV) preload following a reduction in circulating blood volume. The simulation supports the speed and robustness of the proposed strategy.

引用

页码：675 / 678

页数：4

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