Liquid drainage system with hinged cup-shaped valve

Details Liquid drainage system with hinged cup-shaped valve Liquid drainage system with hinged cup-shaped valve

1983-02-10

1985-06-04

Pellegrino, Stephen C.

Surgery

Means and methods for collecting body fluids or waste material

Material collector or receptacle having attaching means to...

604335, 604350, A61M 100

Patent

active

045212139

ABSTRACT:
A liquid drainage system comprising, a receptacle having a chamber to receive liquid, and a depending annular wall in an upper portion of the receptacle. The system has a valve comprising a cup-shaped member of elastic material having a lower wall extending across the cup-shaped member, an upper annular wall extending from the lower wall, with an upper portion of the valve annular wall being snugly received on a lower portion of the receptacle wall, and a hinge member extending outwardly from the cup-shaped member at one side of the lower wall. The cup-shaped member has a slit extending through the cup-shaped member to the hinge member at a location slightly above the lower wall. The slit defines a valve seat above the lower wall with the lower wall serving as a valve element which may sealingly engage against the seat, with the hinge member connecting the lower wall and valve annular wall.

REFERENCES:
patent: 2001885 (1935-05-01), Ohmart
patent: 2954640 (1960-10-01), Catalano et al.
patent: 3066696 (1962-12-01), Hansley
patent: 3529599 (1970-09-01), Folkman
patent: 3586041 (1971-06-01), Monestere
patent: 4305404 (1981-12-01), Dunn

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