Ostomy bag with filter combination

Details Ostomy bag with filter combination Ostomy bag with filter combination

1990-02-20

1993-10-05

Green, Randall L.

Surgery

Means and methods for collecting body fluids or waste material

Receptacle attached to or inserted within body to receive...

604339, A61F 544

Patent

active

052500420

ABSTRACT:
An ostomy bag having a stomal aperture to receive a stoma in one wall of the bag and a gas venting aperture in the bag with a filter element covering the gas venting aperture, the bag including an intervening membrane disposed between the front rear walls of the bag and between the stomal aperture and the gas venting aperture. The intervening membrane is liquid impermeable and gas permeable and supports an adequate flow rate of gas for ostomy bag applications. The intervening membrane preferably comprises a polytetrafloroethylene, microporous semi-permeable membrane laminated to a thermoplastic film layer which is heat sealable to the walls of the bag.

REFERENCES:
patent: 3778971 (1973-12-01), Granger et al.
patent: 4372308 (1983-02-01), Steer et al.
patent: 4387712 (1983-06-01), Briggs et al.
patent: 4460392 (1984-07-01), Poulsen et al.
patent: 4668258 (1987-05-01), Steer
patent: 4723951 (1988-02-01), Steer
patent: 4940461 (1990-07-01), Steer

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