Prosthetic valve for replacing mitral valve

摘要

Embodiments of prosthetic valves for implantation within a native mitral valve are provided. One embodiment of a prosthetic valve includes a radially compressible main body and a one-way valve member. In some cases, the prosthetic valves also include ventricular anchors and/or an atrial portion coupled to and disposed outside of the main body. Methods, devices, and systems for delivering such prosthetic valves to the native mitral valve and implanting them therein are also provided.

主权项

1. An implantable prosthetic valve comprising:
a radially collapsible and radially expandable annular frame comprising: an annular main body defining a lumen therethrough; at least one ventricular anchor coupled to a ventricular end portion of the main body; and an atrial portion coupled to an atrial end of the main body and extending radially away from the main body, wherein the atrial portion comprises a plurality of radially extending atrial arms, wherein at least one of the atrial arms comprises a serpentine or coiled segment having increased flexibility relative to an adjacent arm, and the serpentine or coiled segment comprises a plurality of segments connected end-to-end along the length of the at least one arm, each segment having two 180-degree turns that are longitudinally offset relative to each other; and a valve member supported within an interior of the frame, wherein blood can flow through the valve member from the atrial end to the ventricular end of the main body when the prosthetic valve is implanted in a native mitral valve of a heart.