[Developement of tri-leaflet valve prosthesis using anti-thrombogenic material.]

Abstract

This study was made as the basic research for the development of the new tri-leaflet valve prosthesis. The optimum tilt angle of the leaflet was studied through stress analysis and hydrodynamic simulation, and was 21 deg.. The role of the coaptation zone was “safety coefficient” for suturing the non-stented trileaflet valve. Coefficient of energy loss of stented tri-leaflet valve was larger than that of non-stented valve. This tendency increased when the valve diameter was below 19mm. It is important in clinical application of tri-leaflet valve prosthesis.