The haemostatic valve assembly (10) includes a housing (14) with a chamber (16) therewithin. A flexible valve element (26) is located in the chamber (16) and supported by the housing (14). A source (28) of pressurized fluid can be fed into the chamber (16) through a port (18) in the housing (14). A catheter,...http://www.google.com.au/patents/US8118784?utm_source=gb-gplus-sharePatent US8118784 - Haemostatic valve
