Cardiac assist device employing electrically stimulated artifici

Details Cardiac assist device employing electrically stimulated artifici Cardiac assist device employing electrically stimulated artifici

1977-11-28

1979-12-04

Frinks, Ronald L.

Surgery

Truss

Pad

128 13, 335219, 335230, 335303, 417412, 417478, 3 1, A61F 124, A61M 103

Patent

active

041764110

ABSTRACT:
A left atrial to descending thoracic aorta shunt is encircled by an artificial muscle sheath consisting of a multiplicity of connected rod-like segments formed of an elastomer. Each segment contains a series of embedded electromagnets and surrounding dispersed fragments of magnetically attractable material. The electromagnets are energized across intact skin of a recipient of the device by state of the art induction means to cause contraction of the individual artificial muscle segments with resulting contraction of the muscle sheath to thereby squeeze cyclically a predetermined volume of blood through the flexible shunt which is equipped at opposite ends of the muscle sheath with check valves.

REFERENCES:
patent: 2532876 (1950-12-01), Asche et al.
patent: 3720485 (1973-03-01), Holman
patent: 3733616 (1973-05-01), Willis
patent: 4014318 (1977-03-01), Dockum et al.

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