Drainage device with flow meter

Details Drainage device with flow meter Drainage device with flow meter

1981-08-05

1984-06-12

Rosenbaum, C. Fred

Surgery

Means and methods for collecting body fluids or waste material

Aspiration collection container or trap

604321, 137205, A61M 100

Patent

active

044539371

ABSTRACT:
A drainage device is provided with a collection chamber, an underwater seal chamber, and a separate flow chamber. The underwater seal chamber which prevents the flow of atmospheric air from the device into the pleural cavity of the patient is formed by a recessed portion in a partition separating the underwater seal chamber from the collection chamber. A passageway from the underwater seal chamber into the collection chamber is located in the partition separating the chambers and a baffle is formed around the opening to prevent excessive loss of fluid from the underwater seal chamber into the collection chamber when the device is inadvertently tilted. The flow chamber is closed off from the collection chamber and is connected with the underwater seal chamber by means of a tubular passageway adjacent the upper wall of the drainage apparatus so as to prevent fluid from passing from the underwater seal chamber into the outlet passageway. An air flow meter is provided in the flow chamber to measure the rate of air flow through the flow chamber.

REFERENCES:
patent: 3559647 (1971-02-01), Bidwell et al.
patent: 4312351 (1982-01-01), Kurtz et al.

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