Medical prosthetic pull valve and system for using same

Details Medical prosthetic pull valve and system for using same Medical prosthetic pull valve and system for using same

1979-04-11

1980-09-30

Trapp, Lawrence W.

Surgery

Truss

Perineal

A61F 500

Patent

active

042249341

ABSTRACT:
A prosthetic check valve which allows unrestricted fluid flow in a forward direction and is capable of being repeatedly pulled open to allow reverse fluid flow. The valve comprises a valve body having an extensible section which houses a valve seat and a valve support. A resilient member is attached to the valve support and resiliently supports a valve member so as to force the valve member towards the valve seat. When the extensible section is contracted, the valve acts as a check valve to allow fluid flow only in a forward direction from a supply tube, through the valve support and valve seat, to a demand tube. When the extensible section is extended, fluid is allowed to flow both in the aforesaid forward direction and in a reverse direction through the valve.

REFERENCES:
patent: 1880948 (1932-10-01), Evennett
patent: 2623787 (1952-12-01), Smith
patent: 2999499 (1961-09-01), Willet
patent: 3530928 (1970-09-01), Swinney
patent: 3570484 (1971-03-01), Steer et al.
patent: 3685795 (1972-08-01), Caster
patent: 3971541 (1976-07-01), Griffin
patent: 4009711 (1977-03-01), Uson

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