Tubular circulatory assist device

Details Tubular circulatory assist device Tubular circulatory assist device

1995-03-06

1997-07-01

Kamm, William E.

Surgery

Cardiac augmentation

A61M 112

Patent

active

056431724

ABSTRACT:
A circulatory apparatus for assisting the movement of fluids with a pulsatile flow. The circulatory apparatus includes a restrictable tube, an element for passively restricting a segment of the tube, two or more elements for selectively restricting segments of the tube, and a controller for directing selective restricting elements. The controller directs restricting elements in a manner that provides a cyclical pulsatile pattern of restriction along the length of the tube.

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Liotta D, Manes J, Bourland H, Rodwell D, Hall CW, DeBakey ME, "Recent Modifications in the Implanatable Left Ventricular Bypass." Trans. Amer. Soc. Artif. Int. Organs, 1965; XI: 284-288.
Klain M, Ogawa H, Wright J, Webb J, Mrava G, Von Bally K, Urbanek K, Carse C, Sagawa K, Nose Y, "Valveless Orthotopic Cardiac Prosetheses--A Wave-pulsating Total Heart." Trans. Amer. Soc. Artif. Internal Organs, 1970, XVI:400-408.
Engelman RM, Nyialas E, Lackner H, Godwin SJ, "Left Heart Bypass Without Anticoagulation," J. Thorac. Cardiovasc. Surg. 1971; 62:851-858.
Kung, R.T.V. and G.L. Champsaur (Apr. 1993) "Tubular Pediatric Ventricular Assist Device (VAD)" ASAIO, p. 31.

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