Air leak detection system for chest fluid collection bottles and

Details Air leak detection system for chest fluid collection bottles and Air leak detection system for chest fluid collection bottles and

1985-08-13

1987-12-29

Grieb, William H.

Surgery

Means and methods for collecting body fluids or waste material

Aspiration collection container or trap

604323, 604324, 604319, A61M 100

Patent

active

047158565

ABSTRACT:
This invention relates to an improved chest fluid drainage bottle of the type having a fluid collection chamber connectable to receive fluid sucked from the patient's chest, the improvement consisting of an improved air leak detection system characterized by a fluid filled U-tube downstream of the air space overlying the fluid collecting chamber cooperating therewith to define an air leak detector substantially insensitive to small intermittent variations in upstream pressure while, at the same time, providing an observer with a reliable visual indication of a continuous upstream leak. The improvement also encompasses an anti-splash baffle adjacent the outlet of the U-tube effective to prevent the fluid therein from leaving same and, perhaps, entering the vacuum system upon the application of larger than normal intermittent upstream positive pressure surges.

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"Understanding Underwater Chest Drainage", Cheesborough-Pond's, Inc., Greenwich, Conn., HPO-UWD-LIT-376; Mar. 1976, p. 9.

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