Cardiac assist device

Details Cardiac assist device Cardiac assist device

1993-04-26

1994-09-20

Manuel, George

Surgery

Cardiac augmentation

A61N 1362, A61M 112

Patent

active

053485289

ABSTRACT:
Apparatus to assist a patient's heart. The apparatus includes a main pump to be mounted on the patient's chest wall. The pump is able to reciprocate to generate a compression stroke and an expansion stroke. The pump includes a pump chamber to contain a fluid. An atrial pump is attached to the atrium of the patient's heart. The atrium receives blood through the patient's inferior vena cava. A conduit communicates the pump chamber and the atrial pump. There is a by-pass in the conduit to surround the inferior vena cava. The arrangement is such that the compression stroke of the pump forces fluid in the by-pass to restrict the inferior vena cava and compress the atrium to pump blood towards the patient's pulmonary artery.

REFERENCES:
patent: 4185617 (1980-01-01), Hutchins
patent: 5098370 (1992-03-01), Rahat et al.

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