Surgical drainage device with metered air pump

Details Surgical drainage device with metered air pump Surgical drainage device with metered air pump

1981-04-21

1983-09-20

Apley, Richard J.

Surgery

Means and methods for collecting body fluids or waste material

604321, A61M 100

Patent

active

044053096

ABSTRACT:
A surgical underwater drainage device is provided for draining fluids from the body of a patient through an inlet tube. A metered air pump is fluidly connected to the inlet tube so as to deliver a metered amount of air to the inlet tube when excess negativity occurs there. A spring biased closed one-way valve in the metered air pump prevents atmospheric air from entering the inlet tube except during actuation of the metered air pump.

REFERENCES:
patent: 3187960 (1965-06-01), Gorman
patent: 3750692 (1973-08-01), Tibbs
patent: 4312351 (1982-01-01), Kurtz et al.

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