Patent ID: 7988900
Filing Date: 2011-08-02
Classification: A61F

Abstract:
1. A method of manufacturing a cardiac valve prosthesis, the method comprising: a) providing a forming element having at least two leaflet-forming surfaces wherein the forming surfaces are such that the length in circumferential direction (XY) of the leaflet-forming surface is defined by a parabolic function, b) engaging the forming element with a frame, c) applying a coating over the frame and the engaged forming element, the coating binding to the frame, the coating over the leaflet-forming surfaces forming at least two flexible leaflets, wherein the length of the leaflet between the lateral edges, measured at any height (Z) along the lateral edges in a (XY) plane substantially perpendicular to the bloodflow, is defined by a parabolic function wherein the lengths determined by the parabolic functions vary in a substantially linear fashion with height (Z) and a surface contour such that, in use, when the first leaflet is in the neutral position an intersection of the first leaflet with at least one plane perpendicular to the blood flow axis forms a wave, d) disengaging the frame from the forming element.