A venous valve apparatus, system and method for valve replacement. The valve includes a valve frame, a valve leaflet joined to the valve frame, and a support frame. The valve leaflet includes surfaces defining a reversibly sealable opening for unidirectional flow of a liquid. The support frame meets...http://www.google.com.au/patents/US7854761?utm_source=gb-gplus-sharePatent US7854761 - Methods for venous valve replacement with a catheter
