Prosthetic Mitral Valve and Delivery Method
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Abstract
A valve prosthesis and methods for implanting the prosthesis are provided. The prosthesis generally includes a self-expanding frame and two or more engagement arms. A valve prosthesis is sutured to the self-expanding frame. Each engagement arm corresponds to a native mitral valve leaflet. At least one engagement arm immobilizes the native leaflets, and holds the native leaflets close to the main frame. The prosthetic mitral valve frame also includes two or more anchor attachment points. Each anchor attachment point is attached to one or more anchors that help attach the valve prosthesis to the heart.
33 Citations
43 Claims
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1-19. -19. (canceled)
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20. A method of treating a mitral valve disorder in a patient'"'"'s heart, comprising:
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a) inserting a delivery device into the left ventricle of the heart; b) advancing a mitral valve prosthesis via the delivery device into the left ventricle of the heart, wherein the mitral valve prosthesis comprises; 1) an expandable inflow region formed of a plurality of cells and configured to expand within and support against the walls of the left atrium, wherein the expandable inflow region has a cross-sectional diameter larger than the annulus of the native mitral valve; 2) an expandable outflow region formed of a plurality of cells and configured to expand within and support against the native mitral valve annulus, wherein the expandable outflow region comprises; i) two or more engagement arms; and ii) at least two anchor attachment points; and 3) a prosthetic valve; c) advancing the delivery device into the native mitral valve such that the engagement arms seat on the outer surface of the native mitral valve leaflets; d) attaching the mitral valve prosthesis to the heart via at least one anchor; and e) adjusting tension on the anchor to prevent PVL. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification