A heart valve prosthesis having a valve housing providing a lumen therethrough. The valve housing has a first annulus on one end and a second annulus on the other end spaced apart from the first annulus. A suture cuff is used for attaching the valve housing to heart tissue of a patient. The cuff is attached...http://www.google.es/patents/US6391053?utm_source=gb-gplus-sharePatente US6391053 - Prosthetic heart valve with increased valve lumen
