Method and apparatus for preventing back flow in gastroenterolog

Details Method and apparatus for preventing back flow in gastroenterolog Method and apparatus for preventing back flow in gastroenterolog

1994-03-16

1995-10-24

Rosenbaum, C. Fred

Surgery

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

Material introduced into and removed from body through...

604 54, 604122, 604126, 604129, 604247, 604323, 604324, A61M 100

Patent

active

054606039

ABSTRACT:
Disclosed is an apparatus for providing liquid to a patient, preventing reflux and permitting venting. Tubes or other suitable apparatus are provided for connecting to the liquid source and the patient. An anti-reflux valve is provided in the hydraulic channel between the source and the patient. A vent is provided in the channel between the anti-reflux valve and the patient. Thus, gas urged from the patient under pressure is urged out of the vent. However, liquid similarly urged from the patient is prevented from overflowing by the anti-reflux valve. In a preferred embodiment, the anti-reflux valve is a flapper valve or a ball valve. In another preferred embodiment, the vent is a gas permeable, liquid impervious fabric. Alternatively, the vent may be a float valve. The invention is useful for gastroenterological feeding, nasogastric feeding and the like.

REFERENCES:
patent: 4160383 (1979-07-01), Raushenberger
patent: 4315513 (1982-02-01), Nawash et al.
patent: 4324238 (1982-04-01), Genese et al.
patent: 4725268 (1988-02-01), Ostensen et al.
patent: 4735607 (1988-04-01), Keith Jr.
patent: B14863438 (1989-01-01), Gauderer et al.
patent: 4941875 (1990-07-01), Brennan
patent: 4944732 (1990-07-01), Russo
patent: 4950254 (1990-08-01), Andersen et al.
patent: 5073166 (1991-12-01), Parks et al.
Undated Brochure from Vent-Rite Valve Corp.

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