Systems and methods for heart valve therapy
First Claim
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1. A prosthetic mitral valve system comprising:
- a valve assembly comprising an expandable valve frame and an occluder attached to the expandable valve frame; and
an anchor assembly comprising an expandable anchor frame, the anchor assembly configured to selectively couple with the valve assembly, the expandable anchor frame comprising;
a systolic anterior motion (SAM) containment member that is configured to be at least partially disposed behind an anterior leaflet of a native mitral valve when the expandable anchor frame is engaged with the native mitral valve;
a hub member located at an end of the expandable anchor frame; and
a plurality of elongate members attached to and extending from the hub member, each elongate member including a sub-annular projection configured to engage ventricular tissue proximate to an annulus of the native mitral valve when the expandable anchor frame is engaged with the native mitral valve,wherein the SAM containment member is attached to and extends between two adjacent elongate members of the plurality of elongate members.
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Abstract
Prosthetic mitral valves described herein can be deployed using a transcatheter mitral valve delivery system and technique to interface and anchor in cooperation with the anatomical structures of a native mitral valve. This document describes prosthetic heart valve designs and techniques to manage blood flow through the left ventricular outflow tract. For example, this document describes prosthetic heart valve designs and techniques that reduce or prevent obstructions of the left ventricular outflow tract that may otherwise result from systolic anterior motion of an anterior leaflet of the native mitral valve.
280 Citations
16 Claims
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1. A prosthetic mitral valve system comprising:
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a valve assembly comprising an expandable valve frame and an occluder attached to the expandable valve frame; and an anchor assembly comprising an expandable anchor frame, the anchor assembly configured to selectively couple with the valve assembly, the expandable anchor frame comprising; a systolic anterior motion (SAM) containment member that is configured to be at least partially disposed behind an anterior leaflet of a native mitral valve when the expandable anchor frame is engaged with the native mitral valve; a hub member located at an end of the expandable anchor frame; and a plurality of elongate members attached to and extending from the hub member, each elongate member including a sub-annular projection configured to engage ventricular tissue proximate to an annulus of the native mitral valve when the expandable anchor frame is engaged with the native mitral valve, wherein the SAM containment member is attached to and extends between two adjacent elongate members of the plurality of elongate members. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A prosthetic mitral valve system comprising:
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an expandable frame with an occluder coupled thereto, wherein the expandable frame comprises; a systolic anterior motion (SAM) containment member that is configured to be at least partially disposed behind an anterior leaflet of a native mitral valve when the expandable frame is engaged with the native mitral valve, the SAM containment member comprising an attachment element; a hub member located at an end of the expandable anchor frame; and a plurality of elongate members attached to and extending from the hub member, each elongate member including a sub-annular projection configured to engage ventricular tissue proximate to an annulus of the native mitral valve when the expandable frame is engaged with the native mitral valve, wherein the SAM containment member is attached to and extends between two adjacent elongate members of the plurality of elongate members; and a delivery system for transcatheter deployment of the expandable frame within the native mitral valve, wherein the delivery system is releasably coupleable with the attachment element. - View Dependent Claims (9, 10, 11, 12)
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13. An anchor assembly of a prosthetic mitral valve system, the anchor assembly comprising:
an expandable anchor frame that is adjustable between a radially compressed delivery condition and a radially expanded deployed condition in which the expandable anchor frame is configured to engage with a native mitral valve, the anchor assembly configured to selectively mate with a subsequently deliverable valve assembly of a prosthetic mitral valve system, wherein the expandable anchor frame comprises; a systolic anterior motion (SAM) containment member that is configured to be at least partially disposed behind an anterior leaflet of the native mitral valve when the expandable anchor frame is engaged with the native mitral valve; a hub member located at an end of the expandable anchor frame; and a plurality of elongate members attached to and extending from the hub member, each elongate member including a sub-annular projection configured to engage ventricular tissue proximate to an annulus of the native mitral valve when the expandable anchor frame is engaged with the native mitral valve, wherein the SAM containment member is attached to and extends between two adjacent elongate members of the plurality of elongate members. - View Dependent Claims (14, 15, 16)
Specification