Medical drainage means

Details Medical drainage means Medical drainage means

1998-09-25

2000-10-10

Weiss, John G.

Surgery

Means and methods for collecting body fluids or waste material

Material collector or receptacle having attaching means to...

604324, 137511, A61M 3500, F16K 1500

Patent

active

061297143

ABSTRACT:
An urinary drainage unit including a fluid-tight bag of a material, a major portion of which is flexible. The bag includes a liquid inlet and a gas outlet, both situated at a top of the bag which includes a liquid outlet at its bottom. The unit also includes a normally closed flutter valve (also known as a duckbill valve) having opposing lips, the valve extending integrally downwardly from the liquid inlet and disposed internally to the bag within its flexible portion, the flutter valve including a longitudinally disposed wire, between its lips, in which potential liquid flow across the liquid inlet, caused by an excess of internal bag pressure over body generated inlet pressure, is minimized by a venting function of the wire.

REFERENCES:
patent: 3661143 (1972-05-01), Hankin
patent: 3823716 (1974-07-01), Hale
patent: 3838691 (1974-10-01), Paluden et al.
patent: 3901272 (1975-08-01), Banners et al.
patent: 4085755 (1978-04-01), Burrage
patent: 4772278 (1988-09-01), Baber

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