Surgical drainage apparatus with suction control and indication

Details Surgical drainage apparatus with suction control and indication Surgical drainage apparatus with suction control and indication

1981-05-07

1983-08-02

Apley, Richard J.

Surgery

Means and methods for collecting body fluids or waste material

Material collector with condition indicator

604319, A61M 100

Patent

active

043963862

ABSTRACT:
A surgical drainage unit is provided for draining fluids from the body of a patient wherein the suction pressure, applied through a suction inlet of the unit to draw fluids into the unit, is controlled and a direct indication of the applied suction pressure is afforded. A device which contracts responsive to an increase in suction in a collection chamber of the unit is equipped with an indicator vane that cooperates with a fixed scale to indicate the amount of movement of the bellows and hence indicate the suction within the collection chamber. A manually adjustable control valve controls the amount of air admitted to the suction line within the unit to thereby control the applied suction.

REFERENCES:
patent: 2135148 (1938-11-01), Roy
patent: 3363626 (1968-01-01), Bidwell et al.
patent: 3750692 (1973-08-01), Tibbs
patent: 4020525 (1977-05-01), Fromknocht
patent: 4193292 (1980-03-01), Simonsson
"Bellows" Websters New Collegiate Dictionary, Springfield, Mass., 1961, p. 80.

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