Suction drainage apparatus

Details Suction drainage apparatus Suction drainage apparatus

1985-09-13

1987-03-17

Rosenbaum, C. Fred

Surgery

Means and methods for collecting body fluids or waste material

Aspiration collection container or trap

604118, 604320, A61M 100

Patent

active

046504770

ABSTRACT:
A suction drainage system for body cavities includes a suction collection container, and a disposable suction control chamber through which an essentially constant level of suction is applied to a body cavity. Drained fluids flow into the suction collection container, into the suction control chamber through an elastomeric check valve which precludes backflow of fluids to the patient. A pressure monitoring tube in the suction control chamber has a lower end communicating with ambient pressure and an upper end communicating with the interior of the suction control chamber. A ball in the tube rises to a level which is proportional to the negative pressure inside the suction control chamber. The suction control chamber can be removably mounted to the collection container.

REFERENCES:
patent: 918117 (1909-04-01), Blackwell
patent: 3363626 (1968-01-01), Bidwell et al.
patent: 3363627 (1968-01-01), Bidwell et al.
patent: 3381687 (1968-05-01), Anderson et al.
patent: 4289158 (1981-09-01), Nehring
patent: 4296748 (1981-10-01), Kurtz et al.
patent: 4396386 (1983-08-01), Kurtz et al.
patent: 4419093 (1983-12-01), Deaton
"Understanding Underwater Chest Drainage", Chesebrough-Ponds Inc., Greenwich, Conn. 06830, 1976.
"University Physics," Sears and Zemansky, Addison-Wesley Publishing Co. Inc., Reading, Mass., 1964, p. 479.

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