Abstract: A stentless bioprosthetic valve includes at least one piece of biocompatible material comprising a bi-leaflet conduit having a proximal end and a distal end. The proximal end defines a first annulus for suturing to the valve annulus in the heart. The conduit includes first and second leaflets that mimic the native anterior and posterior leaflets and extend between the ends of the conduit. The distal end defines a second annulus at which the first and second leaflets terminate. The conduit further includes first and second pairs of prosthetic chordae projecting from the leaflets at the second annulus. Each of the prosthetic chordae comprises a solid uninterrupted extension of the piece of biocompatible material.

Abstract: A stentless bioprosthetic valve includes at least one piece of biocompatible material comprising a bi-leaflet conduit. The conduit has a distal end and a proximal end that defines a first annulus for suturing to the valve annulus of a heart. The conduit further includes first and second leaflets that mimic the anterior and posterior leaflets of the native mitral valve. The first and second leaflets extend between the proximal and distal ends. The distal end defines a second annulus at which the first and second leaflets terminate. The second annulus is for suturing to free edges of the anterior and posterior leaflets of the native mitral valve that remain intact following resection of the native mitral valve so that the native chordae tendinae continue to provide prolapse prevention and left ventricular muscle support functions in addition to maintaining the continuity between the valve annulus and the papillary muscles.