PRESSURE ACTIVATED SAFETY VALVE WITH HIGH FLOW SLIT

摘要

A medical device valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lume n to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when acted upon by a pressure of at least a threshold magnitude, the slits open to permit flow through the lumen and, when not acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force to prevent flow through the lumen. Each of the slits extends along a curve wherein a distance between a first end of a first one of the slits and a fir st end of a second one of the slits is a minimum distance between the first and second slits.