Prosthetic mitral valve
First Claim
1. A method for use with a prosthetic valve that is configured to be deployed within a native atrio-ventricular valve of a heart of a mammalian subject, the native atrio-ventricular valve including a valve annulus, valve leaflets, chords, and papillary muscles, the method comprising:
- placing a valve frame within the subject'"'"'s heart, the valve frame including;
a valve frame body that is configured to support the prosthetic valve within the native atrio-ventricular valve, and that includes an atrial portion and a ventricular portion, andat least one arm that is configured to extend from the ventricular portion of the valve frame;
subsequently, deploying the at least one arm among the chords of the native atrio-ventricular valve;
subsequently, rotating at least a portion of the valve frame, in a direction in which an interior of the arm faces, such as to cause the arm to (a) pull the native atrio-ventricular valve radially inward toward the valve frame, and (b) twist the native atrio-ventricular valve around the valve frame, by recruiting and deflecting at least a portion of the chords; and
subsequently, causing the frame body of the valve frame to radially expand, such as to trap the native valve leaflets in a partially closed and twisted configuration, to thereby at least partially seal a space between the native atrio-ventricular valve and the prosthetic valve.
3 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic mitral valve with a frame comprises at least one arm shaped to deploy among a region of chordae tendineae of the native mitral valve to deflect these chords in order to pull the native valve leaflets around the frame to avoid paravalvular leaks. The frame may be made from two parts that are connected by sutures. The prosthetic valve may be deployed by a catherer comprising a deployment clamp attached to the valve frame where the deployment clamp is actuable to induce rotation of the frame.
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Citations
26 Claims
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1. A method for use with a prosthetic valve that is configured to be deployed within a native atrio-ventricular valve of a heart of a mammalian subject, the native atrio-ventricular valve including a valve annulus, valve leaflets, chords, and papillary muscles, the method comprising:
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placing a valve frame within the subject'"'"'s heart, the valve frame including; a valve frame body that is configured to support the prosthetic valve within the native atrio-ventricular valve, and that includes an atrial portion and a ventricular portion, and at least one arm that is configured to extend from the ventricular portion of the valve frame; subsequently, deploying the at least one arm among the chords of the native atrio-ventricular valve; subsequently, rotating at least a portion of the valve frame, in a direction in which an interior of the arm faces, such as to cause the arm to (a) pull the native atrio-ventricular valve radially inward toward the valve frame, and (b) twist the native atrio-ventricular valve around the valve frame, by recruiting and deflecting at least a portion of the chords; and subsequently, causing the frame body of the valve frame to radially expand, such as to trap the native valve leaflets in a partially closed and twisted configuration, to thereby at least partially seal a space between the native atrio-ventricular valve and the prosthetic valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Apparatus for use with a prosthetic valve that is configured to be deployed within a native atrio-ventricular valve of a heart of a mammalian subject, the native atrio-ventricular valve including a valve annulus, valve leaflets, chords, and papillary muscles, the apparatus comprising:
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a valve frame configured to support the prosthetic valve within the native atrio-ventricular valve, the valve frame comprising; a frame body comprising; an atrial portion configured to be positioned such that, when the valve frame is deployed, at least a portion of the atrial portion is disposed on an atrial side of the native atrio-ventricular valve; and a ventricular portion configured to be positioned such that, when the valve frame is deployed, at least a portion of the ventricular portion is disposed within a ventricle of the subject; and at least one arm configured to extend from the ventricular portion of the frame body; and a delivery device configured to; deliver the valve frame to the native atrio-ventricular valve; subsequently, deploy the at least one arm among the chords of the native atrio-ventricular valve; subsequently, rotate at least a portion of the valve frame, in a direction in which an interior of the arm faces, such as to cause the arm to (a) pull the native atrio-ventricular valve radially inward toward the valve frame, and (b) twist the native atrio-ventricular valve around the valve frame, by recruiting and deflecting at least a portion of the chords; and subsequently, cause the frame body of the valve frame to radially expand, such as to trap the native valve leaflets in a partially closed and twisted configuration between the arms and the frame body, to thereby at least partially seal a space between the native atrio-ventricular valve and the prosthetic valve. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification