Pressure reducing valve with flexible cuff

摘要

A pressure reducing valve (20) for use in a system adapted to deliver a breathing gas to a patient. The pressure reducing valve (20) is structured to communicate a flow of breathing gas (28) to such a patient's airway during an inspiratory phase. The pressure reducing valve (20) is structured to discharge the flow of breathing gas (28) and a flow of exhaled gas (29) to atmosphere during the expiratory phase. The flow of breathing gas (28) and flow of exhaled gas (29) are discharged to atmosphere through a number of exhaust ports (24). Because the flow of breathing gas (28) and flow of exhalation gas are discharged through the exhaust ports (24), less effort is required by a patient during the expiratory phase.