Liquid valve system

Details Liquid valve system Liquid valve system

1986-02-04

1990-08-07

Kruter, Jerome L.

Surgery

Means and methods for collecting body fluids or waste material

Material collector or receptacle having attaching means to...

604335, 604350, 137855, A61M 100

Patent

active

049464515

ABSTRACT:
A liquid drainage system comprising a receptacle having a front wall, a back wall, and a chamber for collection of liquid therein. The system has a housing secured to an upper portion of the receptacle, said housing having a drip chamber, an annular wall in a lower portion of the drip chamber defining a valve seat, with said seat being disposed at an acute angle relative to the horizontal when the receptacle is in an upright position. The system has an anti-reflux valve comprising a sheet of flexible material having an upper portion and a lower portion and extending across said drip chamber such that the sheet is sufficiently large to engage against said seat peripherally around the drip chamber. The system has a device for retaining an upper portion of the valve against an upper portion of the seat, said valve being sufficiently flexible such that a lower portion of the valve flexes away from the seat when the receptacle is placed in an upright position due to gravity in the absence of liquid adjacent said valve and seat, and said lower portion of the valve flexes against the seat when the receptacle is disposed in a horizontal position.

REFERENCES:
patent: 1955733 (1934-04-01), Bijur
patent: 2001885 (1935-05-01), Ohmart
patent: 3529599 (1970-09-01), Folkman et al.
patent: 3586041 (1970-01-01), Monetere
patent: 4059124 (1977-11-01), Hill
patent: 4305403 (1981-12-01), Dunn
patent: 4512770 (1985-04-01), Cianci et al.

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