	US 7,377,938 B2
	Prosthetic cardiac value and method for making same
Timur Paul Sarac, Orange Village, Ohio (US); and Nicholas G. Smedira, Moreland Hills, Ohio (US)
Assigned to The Cleveland Clinic Foundation, Cleveland, Ohio (US)
Filed on Jun. 29, 2004, as Appl. No. 10/880,277.
Application 10/409884 is a division of application No. 09/908764, filed on Jul. 19, 2001, granted, now 6,579,307, filed on Jun. 17, 2003.
Application 10/880277 is a continuation in part of application No. 10/409884, filed on Apr. 09, 2003, granted, now 7,137,947.
Prior Publication US 2004/0236411 A1, Nov. 25, 2004
Int. Cl. A61F 2/06 (2006.01); A61F 2/24 (2006.01)

U.S. Cl. 623—1.26

6 Claims

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.