US 4,396,386 AGranted

Surgical drainage apparatus with suction control and indication

AssigneeBioResearch Inc.

InventorsLeonard D. Kurtz, Joseph M. LiCausi

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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.

Claims10

Dependent claims

A surgical pleural underwater drainage apparatus which is dry prior to use for draining fluids from the body of a patient, said apparatus comprising:

a container,
a fluid inlet in said container;
a collection chamber formed in said container for collecting fluids received through said fluid inlet;
connection means for connecting said container to a suction source so as to create a suction within said container and thereby draw fluids into said container through said fluid inlet;
manually controllable means for providing a passageway of variable size for admitting air to said connection means for controlling the amount of suction created within the collection chamber of said container;
and
expansible proportional indicator means, located in an upper chamber within said container and responsive to the suction created within said collection chamber, for providing an indication of the level of suction created.

4 more elements

Dependencies are inferred from the claim text.