Valve for breathing device

Details Valve for breathing device Valve for breathing device

A - Human Necessities

62

B

137/1.55

A62B 9/02 (2006.01) A61M 16/20 (2006.01) A61M 16/00 (2006.01)

Patent

CA 1193169

ABSTRACT OF THE DISCLOSURE: A breathing valve having a valve chamber connectable to a gas supply and to a breathing device, a gas flow opening for exit of exhaled gases through which atmospheric air may be inducted into the chamber, a valve member in the chamber, a one-way flow opening in the valve member through which gas may flow from the chamber for breathing, and preventing return flow in the opposite direction, a movable valve closure forming part of the valve member movable into and out of sealing engagement with the exit gas flow opening, and a pressure responsive device in the valve member responsive to obstruction of gas flow into the chamber and further responsive to inspiratory effort by a patient to cause the valve member to move away from the exit gas flow opening for permitting air flow through the exit gas flow opening into the chamber for inhalation.

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