Patent ID: 6766800
Filing Date: 2004-07-27
Classification: A61M,Y10T

Abstract:
A valve for a continuous positive airway pressure (CPAP) device having a source of positive airway pressure connected to a patient mask, the valve comprising:a valve body disposed at or between the patient mask and the source of positive airway pressure, the valve body having a first exhaust flowpath and second exhaust flowpath; a floating valve seat disposed in the valve body and moveable between first and second positions; a moveable spring-biased piston releasably engaged with the floating valve seat; and wherein when the floating valve seat is in the first position, the moveable spring-biased piston is disengaged from valve seat and gas travels out the first exhaust flowpath venting to the atmosphere, and wherein when the floating valve seat is in the second position, the moveable spring-biased piston is engaged with the valve seat and gas travels out the second exhaust flowpath venting to the atmosphere.