STACKED MEMBRANE FOR PRESSURE ACTUATED VALVE

摘要

A pressure activated valve comprises a housing having a lumen extending therethrough . A flow control membrane extending across the lumen includes a mounting portion at which the flow control membrane is coupled to the housing and a lumen occluding portion having a slit extending therethrough . When the lumen-occluding portion is subjected to a pressure of at least a predetermined level, the lumen-occluding portion moves from a closed configuration preventing flow through the lumen to an open configuration permitting flow. A thickness of the mounting portion is greater than a thickness of the lumen-occluding portion.