Linear motion, muscle-actuated cardiac assist device

Details Linear motion, muscle-actuated cardiac assist device Linear motion, muscle-actuated cardiac assist device

1992-09-24

1994-06-07

Kamm, William E.

Surgery

Cardiac augmentation

623 3, A61M 112

Patent

active

053185013

ABSTRACT:
A linear motion, muscle-actuated cardiac assist device novelly uses a powering muscle whose contractions and relaxations are made in a substantially linear fashion, as opposed to the curvilinear muscle motions associated with prior art muscle-actuated cardiac assist devices. As a result, collateral circulation of the powering muscle need not be cut, theoretically leading to prevention of ischemia in the powering muscle. Other benefits include: greater energy efficiency of the powering muscle; greater available choice of powering muscles (i.e., not limited to the latissimus dorsi as the powering muscle); and reduced profile height of the cardiac assist device to reduce protrusion from the implanted area of the body.

REFERENCES:
patent: 4453537 (1984-06-01), Spitzer
patent: 4685446 (1987-08-01), Choy
patent: 5006104 (1991-04-01), Smith et al.
patent: 5169381 (1992-12-01), Snyders
patent: 5171207 (1992-12-01), Whalen

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