Surgical drainage device with metered air pump
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United States of America Patent
Stats
-
Sep 20, 1983
Grant Date -
N/A
app pub date -
Apr 21, 1981
filing date -
Apr 21, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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