Nasogastric tube antireflux valve

Details Nasogastric tube antireflux valve Nasogastric tube antireflux valve

1986-05-12

1988-04-05

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 45, 604129, 604247, 604256, 137526, 137854, A61M 3100

Patent

active

047356073

ABSTRACT:
A valve to prevent gastric reflux or leakage through the vent lumen of a double-lumened nasogastric tube. The valve allows the passage of air into the vent lumen when atmospheric pressure exceeds stomach pressure. When stomach pressure exceeds atmospheric pressure the valve prevents flow of fluids through the tube.

REFERENCES:
patent: 386603 (1888-07-01), Parsons
patent: 2568566 (1951-09-01), Sokolik
patent: 3419009 (1968-12-01), Ericson
patent: 3583404 (1971-06-01), McWhorter
patent: 3599641 (1971-08-01), Sheridan
patent: 3730209 (1973-05-01), Binard et al.
patent: 3982540 (1976-09-01), Ross
patent: 3982546 (1976-09-01), Friend
patent: 4502502 (1985-03-01), Krug
patent: 4508533 (1985-04-01), Abramson
patent: 4513784 (1985-04-01), Farrand et al.
patent: 4573965 (1986-03-01), Russo
Nursing magazine, vol. 7, No. 9, Sep. 1977, at pp. 54-57.

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