Assist device for the failing heart

Surgery – Cardiac augmentation

Reexamination Certificate

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Reexamination Certificate

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06918870

ABSTRACT:
A heart actuator device for use in heart assist apparatus, which device includes a paddle-like main body. The main body has a heart compressing wall, which in use is adapted to be affixed to at least a region of heart, and a distal wall, which in use is adapted to be distal that region of the heart. The heart compressing wall is movable in a direction relatively away from the distal wall, so as, in use to compress at least that region of the heart thereby assisting movement of the heart wall.

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Artrip, John H., MD, et al, “Hemodynamic Effects of Direct Biventricular Compression Studied in Isovolumic and Ejecting Isolated Canine Hearts,” Apr. 27, 1999, American Heart Association, pp. 2177-2184.
Hotei, H. et al, “Development of a Direct Mechanical Left Ventricular Assist Device for Left Ventricular Failure,” Artificial Organs, vol. 21(9), Sep. 1997, pp. 1026-1034.

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