Elliptical artificial heart

Details Elliptical artificial heart Elliptical artificial heart

1988-08-15

1990-12-11

Green, Randall L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Corporeal artificial heart, heart assist , control...

600 16, 600 17, A61M 110

Patent

active

049767291

ABSTRACT:
An artificial heart device for producing heart pumping action as part of a total artificial heart implant comprising a semi-rigid housing of approximate ellipsoidal configuration which encloses a pumping volume divided into a blood chamber and a pumping chamber by a deformable diaphragm structure which is symmetrically positioned about a short axis of the ellipsoid housing. This diaphragm structure is also configured as a hemiellipsoidal structure, allowing the device to have smaller dimensions but to maintain the required high stroke volume necessary to function within a human circulatory system. The device includes valved inlet and outlet openings coupled through the housing and in communication with the blood chamber. A pneumatic pump is coupled to the pumping chamber through a series of concentric vents formed within the base of the artificial heart device.

REFERENCES:
patent: 3568214 (1971-03-01), Goldschmied
patent: 3656873 (1972-04-01), Schiff
patent: 4376312 (1983-03-01), Robinson et al.
patent: 4427470 (1984-01-01), Kolff
patent: 4573997 (1986-03-01), Wisman et al.
"Mechanical Failures in In Vivo and in Vitro Studies of Pneumatic Total Artificial Hearts", P. A. Dew, D. B. Olsen, T. R. Kessler, D. I. Coleman, and W. J. Kolff, vol. XXX Trans. Am. Soc, Artif. Intern. Organs, 1984, pp. 112-116.

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