Anti-reflux device

Details Anti-reflux device Anti-reflux device

1974-10-02

1976-06-29

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

128294, 1375251, A61F 544

Patent

active

039659003

ABSTRACT:
An anti-reflux device for a collection bag having an inlet port communicating with the inside of the bag and a generally planar surface surrounding the port on the inside of the bag. The device has a thin flexible valve element having sufficiently large dimensions to cover the inlet port, and means for retaining the valve element adjacent the surface on the inside of the bag in a sliding relationship with the inlet port and with the valve element covering the port.

REFERENCES:
patent: 2755060 (1956-07-01), Twyman
patent: 3477438 (1969-11-01), Allen et al.
patent: 3525357 (1970-08-01), Koreski
patent: 3529599 (1970-09-01), Folkman et al.
patent: 3564620 (1971-02-01), Clark
patent: 3586041 (1971-06-01), Monestere
patent: 3716055 (1973-02-01), Schultze
patent: 3734080 (1973-05-01), Petterson et al.
patent: 3901235 (1975-08-01), Patel et al.

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