Drainage device with separate outflow chamber

Details Drainage device with separate outflow chamber Drainage device with separate outflow chamber

A - Human Necessities

61

M

128/106

A61M 1/00 (2006.01)

Patent

CA 1151965

DRAINAGE DEVICE WITH SEPARATE OUTFLOW CHAMBER ABSTRACT A drainage device is provided with a collection chamber, underwater seal chamber and a separate outflow 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 un- derwater seal chamber from the collection chamber. The passage- way from the underwater seal chamber into the collection cham- ber is disposed centrally of the partition separating the cham- bers and a baffle is formed around the opening to prevent ex- cessive loss of fluid from the underwater seal chamber into the collection chamber when the device is inadvertently tilted. The outflow 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 ap- paratus so as to prevent fluid from passing from the underwater seal chamber into the outlet passageway. A oneway valve is provided in the outlet chamber to prevent backflow of air from the atmosphere into the device but which permits outflow of air from within the device when the air pressure within the device is higher than atmospheric pressure or when the device is used with a suction pump. A hanger attachment is provided to permit the device to stand on the floor or be hooked onto the bedside.

360582

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