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A Pulsatile Roller Pump for Cardiac Bypass

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5 Author(s)
Hoffman, B. F. ; Department of Surgery, School of Medicine, and the Applied Physics Laboratory, Johns Hopkins University, Baltimore, Md. 21205. ; Klopp, E. H. ; Jacobs, L. A. ; Seamone, W.
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This short communication describes a cardiac bypass pump which produces a pulsatile flow. By driving a roller pump with a dc torque motor, it has been possible to provide electronic control of pulse rate and stroke volume. Flow and pressure recordings in dogs undergoing left-heart bypass are nearly physiological.

Published in:

Biomedical Engineering, IEEE Transactions on  (Volume:BME-17 ,  Issue: 1 )