Anti-reflux device for urinary collection bags

Details Anti-reflux device for urinary collection bags Anti-reflux device for urinary collection bags

A - Human Necessities

61

F

128/110

A61F 5/44 (2006.01)

Patent

CA 1046375

ABSTRACT OF THE DISCLOSURE A flexible collection bag used for collecting urinary and other body fluid drainage, has a film or sheet flap valve laminate closing against the internal surface of the bag in response to positive pressures within the bag. The flap valve is located over the inlet opening of the bag, through which liquid passes for collection, and is a sheet of thin flexible material having all but its lower periphery sealed to the inside of the bag and the back support portion of the inlet opening, thus leaving a lower free flap portion below the inlet opening. The flap valve remains in a passive state; however, when the bag pressure exceeds the input or drain line pressure, the valve closes and remains closed until the bag pressure drops below the line pressure. The valve advantageously permits only a unidirectional flow to occur, thereby preventing any refluxing action of the bag contents from taking place therein.

196075

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