Patent ID: 7377938
Filing Date: 2008-05-27
Classification: A61F,A61L,Y10S

Abstract:
1. A prosthetic valve for replacing a cardiac valve, said prosthetic valve comprising: an expandable support member comprising a stent having inner and outer surfaces; at least two valve leaflets made of a first layer of biological material selected from a group consisting of peritoneal tissue, pleural tissue, and pericardial tissue; said stent having oppositely disposed proximal and distal end sections and a center section disposed between said end sections, said at least two valve leaflets extending within said center section; a second layer of biological material attached to said support member, said second layer being selected from a group consisting of peritoneal tissue, pleural tissue, and pericardial tissue, said second layer being attached to said inner surface; said second layer including a radially inwardly facing surface that defines a conduit for directing blood flow; said at least two valve leaflets extending across said conduit to permit unidirectional flow of blood through said conduit; and wherein said center section of said stent has a convex shape in the axial direction for conforming to the shape of the cardiac wall downstream of the cardiac valve.