Title :
Non-invasive control of aortic pressure and cardiac output in a reciprocating pusher-plate artificial heart
Author :
Martin, Larrian R. ; Gaumond, Roger P. ; Gardner, John F. ; Snyder, Alan J. ; Geselowitz, David B.
Author_Institution :
Dept. of Bioeng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
An algorithm has been developed to control reciprocating pusher-plates of an artificial heart in a method that regulates cardiac output to maintain aortic pressure and maximize ventricular filling. A simulation of a total artificial heart (TAH) driven by a control algorithm was coupled to a windkessel model of the circulation to explore the range of the TAH as a function of systemic resistance. The results of this simulation were compared to an isolated natural heart using a time-varying elastance model of the ventricle. The simulation demonstrated the artificial heart controller to have a range of control of cardiac output in which it maintained aortic pressure at a desired level over a broad range of systemic resistance
Keywords :
artificial organs; biocontrol; cardiology; haemodynamics; physiological models; pressure control; aortic pressure; artificial heart controller; cardiac output; cardiac ventricle model; isolated natural heart; noninvasive control; reciprocating pusher-plate artificial heart; systemic resistance range; time-varying elastance model; ventricular filling maximization; windkessel model; Artificial heart; Biomedical engineering; Blood; Brushless motors; Fasteners; Filling; Immune system; Monitoring; Pressure control; Pumps;
Conference_Titel :
Bioengineering Conference, 1996., Proceedings of the 1996 IEEE Twenty-Second Annual Northeast
Conference_Location :
New Brunswick, NJ
Print_ISBN :
0-7803-3204-0
DOI :
10.1109/NEBC.1996.503218
