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RESEARCH PAPERS

A Simulation of the Dynamics of Counterpulsation

[+] Author and Article Information
A. R. Nerz

Cummins Technical Center, Columbus, Ind. 47201

P. D. Myerowitz

University of Minnesota Hospitals, Minneapolis, Minn. 55455

P. L. Blackshear

University of Minnesota, Minneapolis, Minn. 55455

J Biomech Eng 101(2), 105-111 (May 01, 1979) (7 pages) doi:10.1115/1.3426230 History: Received October 02, 1978; Online October 21, 2010

Abstract

An open-loop, lumped parameter, digital computer model of the left heart, coronary artery, and aortic tree is discussed. Introduction of an external flow source (counterpulsation pump system) at any of the eight major nodal points located along the aorta is permitted. The model is run for a variety of conditions to assess the effects of counterpulsation pump timing, stroke volume, infusion/aspiration rate and pump cannula location on selected indices of cardiac performance. Simulation results are compared to appropriate data from two series of animal experiments using a thin-walled cannula and a pneumatically driven, nonhemolytic counterpulsation pump system.

Copyright © 1979 by ASME
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