Platforms for mitral valve replacement
A mitral valve prosthesis is percutaneously and/or transapically deployed in at least two stages. In a first stage, a mitral annular ring platform adapted for percutaneous delivery is delivered to and anchored in the mitral valve annulus. In the second stage, a valved-stent mitral valve prosthetic device adapted for percutaneously delivery is delivered to the mitral valve annulus for mounting in the mitral annular ring platform. This approach provides a consistent platform for accepting valved-stent mitral valve prosthetic devices from different vendors to be used.
1. A mitral valve prosthesis comprising:
a mitral annular ring platform device adapted for percutaneous and/or transapical delivery to and anchoring in a mitral valve annulus of a subject, the mitral annular ring platform device comprising
left and right discs configured to straddle the subject's atrial septum when said platform is deployed to the subject's heart,
a bridge region that extends from an outermost circumferential rim of the left disc and that is interposed between the left disc and a mitral annular ring-shaped or oval-shaped platform portion, the mitral annular ring-shaped or oval-shaped platform portion extending from a side of the bridge region opposite the left disc and being adapted to lie across the subject's mitral valve annulus, wherein the mitral annular ring platform device is configured for delivery and
implantation from a compressed state by deployment from a catheter; and
a valved-stent mitral valve prosthetic device adapted to be percutaneously and/or transapically delivered to the mitral valve annulus for mounting in said mitral annular ring-shaped or oval-shaped platform.