Surgical drainage apparatus with incremental suction control and

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

1982-06-08

1984-08-28

Frankfort, Charles

Surgery

Means and methods for collecting body fluids or waste material

Aspiration collection container or trap

604318, 73714, 137205, 137212, G01L 2100

Patent

active

044682263

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 incrementally 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 incrementally controls the amount of air admitted to a suction line within the unit to thereby control the applied suction. A negative pressure relief valve is also provided so that excess negativity within the inlet tube can be manually relieved.

REFERENCES:
patent: 3363626 (1968-01-01), Bidwell et al.
patent: 4396386 (1983-08-01), Kurtz et al.

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