A valve (10) comprises a housing (12) with a valve element (14) which normally fluidicly couples a low pressure operating device, such as a transducer (30) and tubing (34) to be coupled to a patient (36) along a first flow path (42) including a flexible control wall (58) which normally interrupts a second...http://www.google.com/patents/US7302960?utm_source=gb-gplus-sharePatent US7302960 - Momentary high pressure valve
