Inflatable/deflatable device for a heart-assist pump

Details Inflatable/deflatable device for a heart-assist pump Inflatable/deflatable device for a heart-assist pump

1978-06-16

1981-01-20

Truluck, Dalton L.

Surgery

Truss

Perineal

3 17, 417384, A61F 124, A61M 103

Patent

active

042456223

ABSTRACT:
An inflatable/deflatable device for use in a body-implantable heart-assist pump. The device includes an inflatable/deflatable central portion, and a noninflatable, generally planar marginal portion joined thereto. In a preferred construction, the device is formed by the marginal joinder of a pair of flexible fluid-impervious sheets, wherein the central portion has opposite sides, and the marginal portion includes stretches distributed along these sides. The two flexible sheets may have different flexibilities, permitting the device to be inflated preferentially in a desired direction, and different curvatures, permitting the device to conform to adjoining surfaces in the heart-assist pump.

REFERENCES:
patent: 3504662 (1970-04-01), Jones
patent: 3689204 (1972-09-01), Prisk
patent: 4015590 (1977-04-01), Normann
patent: 4051840 (1977-10-01), Kantrowitz et al.
patent: 4116589 (1978-09-01), Rishton

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