Journal of Applied Physiology Ad Instruments
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J Appl Physiol 19: 1035-1042, 1964;
8750-7587/64 $5.00
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Development and use of a solenoid-powered, spring-driven heart substitution pump

J. P. Holt 1, Ralph Drury 1, and Helga Kines 1

1 Heart Research Laboratory, University of Louisville School of Medicine, Louisville, Kentucky

A single solenoid, variable rate pump, whose right and left chamber end-systolic volumes are determined by the levels of the pulmonary and aortic end-systolic pressures, respectively, is described. In studies in a model of the circulation, the pump simulates to a high degree the functioning of the mammalian heart; and in acute experiments on dogs it has successfully replaced the heart for as long as 15 hr. It is suggested that with miniaturization the pump can be placed within the chest.

artificial heart; circulation model

Submitted on October 21, 1963






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