Abstract: Bioprosthetic heart valves and methods for fabricating bioprosthetic heart valves are provided. Biological tissue is attached to biocompatible material. The biocompatible material is folded to form a tubular structure with the attached biological tissue located on the inner surface of the tubular structure, the biological tissue forming leaflets of the heart valve. A stent is secured around the outer surface of the tubular structure. A region of the biocompatible material is cut. The biocompatible material is folded at the cut region away from the tissue and around the downstream edge of the stent and is secured to the stent's outer surface. The biocompatible material is folded at the upstream end of the tubular structure around the upstream edge of the stent and attached to the stent's outer surface so that the stent's inner and outer surfaces are covered with no more than a single layer of the biocompatible material.

Abstract: A prosthetic heart valve (1) for implantation at the mitral annulus of a heart, the prosthetic heart valve comprising: a support framework (10) reversibly transformable between a collapsed configuration and an expanded configuration; and one or more leaflets connected to the framework; wherein, in the expanded configuration: the support framework defines a fluid pathway through the prosthetic heart valve, the fluid pathway having a portion with a D-shaped cross section for engaging the mitral annulus; and the one or more leaflets allow fluid to pass through the fluid pathway in a first direction but prevent fluid from flowing in the opposite direction.

Abstract: Bioprosthetic heart valves and methods for fabricating bioprosthetic heart valves are provided. Biological tissue is attached to biocompatible material. The biocompatible material is folded to form a tubular structure with the attached biological tissue located on the inner surface of the tubular structure, the biological tissue forming leaflets of the heart valve. A stent is secured around the outer surface of the tubular structure. A region of the biocompatible material is cut. The biocompatible material is folded at the cut region away from the tissue and around the downstream edge of the stent and is secured to the stent's outer surface. The biocompatible material is folded at the upstream end of the tubular structure around the upstream edge of the stent and attached to the stent's outer surface so that the stent's inner and outer surfaces are covered with no more than a single layer of the biocompatible material.

Abstract: A prosthetic heart valve (1) for implantation at the mitral annulus of a heart, the prosthetic heart valve comprising: a support framework (10) reversibly transformable between a collapsed configuration and an expanded configuration; and one or more leaflets connected to the framework; wherein, in the expanded configuration: the support framework defines a fluid pathway through the prosthetic heart valve, the fluid pathway having a portion with a D-shaped cross section for engaging the mitral annulus; and the one or more leaflets allow fluid to pass through the fluid pathway in a first direction but prevent fluid from flowing in the opposite direction.