Title :
A Pulsatile Roller Pump for Cardiac Bypass
Author :
Hoffman, B. F. ; Klopp, E. H. ; Jacobs, L. A. ; Seamone, W. ; Gott, V. L.
Author_Institution :
Department of Surgery, School of Medicine, and the Applied Physics Laboratory, Johns Hopkins University, Baltimore, Md. 21205.
Abstract :
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.
Keywords :
Computer errors; Dogs; Electrocardiography; Electroencephalography; Frequency estimation; Noise level; Noise reduction; Phase estimation; Phase noise; Power systems;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1970.4502695
