PROSTHETIC MITRAL VALVE WITH TISSUE ANCHORS
First Claim
1. Apparatus comprising a prosthetic atrioventricular valve for coupling to a native atrioventricular valve, the prosthetic valve comprising:
- a support frame;
a covering, which at least partially covers the support frame, wherein the support frame and the covering are shaped so as to define a downstream skirt;
a plurality of prosthetic leaflets, coupled to at least one element selected from the group consisting of;
the support frame and the covering; and
an elongated anchoring member, configured to be positioned around the downstream skirt in a subvalvular space, such that the anchoring member presses native leaflets of the native valve against the downstream skirt, thereby anchoring the prosthetic valve to the native valve.
3 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods are described including a prosthetic atrioventricular valve (10) for coupling to a native atrioventricular valve (12). The prosthetic valve includes a support frame (20) and a covering (22), which at least partially covers the support frame. The support frame and the covering are shaped so as to define a downstream skirt (24). A plurality of prosthetic leaflets (40) are coupled to at least one element selected from the group consisting of the support frame and the covering. An elongated anchoring member (152) is positioned around the downstream skirt in a subvalvular space (150), such that the anchoring member presses native leaflets (30) of the native valve against the downstream skirt, thereby anchoring the prosthetic valve to the native valve. Other applications are also described.
627 Citations
36 Claims
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1. Apparatus comprising a prosthetic atrioventricular valve for coupling to a native atrioventricular valve, the prosthetic valve comprising:
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a support frame; a covering, which at least partially covers the support frame, wherein the support frame and the covering are shaped so as to define a downstream skirt; a plurality of prosthetic leaflets, coupled to at least one element selected from the group consisting of;
the support frame and the covering; andan elongated anchoring member, configured to be positioned around the downstream skirt in a subvalvular space, such that the anchoring member presses native leaflets of the native valve against the downstream skirt, thereby anchoring the prosthetic valve to the native valve. - View Dependent Claims (2, 3, 4)
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5. Apparatus comprising a prosthetic atrioventricular valve for coupling to a native atrioventricular valve, the prosthetic valve comprising:
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a support frame; a covering, which at least partially covers the support frame, wherein the support frame and the covering are shaped so as to define a downstream skirt; a plurality of prosthetic leaflets, coupled to at least one element selected from the group consisting of;
the support frame and the covering; anda plurality of subvalvular anchoring elements, coupled to the downstream skirt, and configured to anchor the prosthetic valve to the native valve by piercing native leaflets of the native valve, passing through to a subvalvular space, and applying a force against the ventricular surface of the native leaflets. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14-21. -21. (canceled)
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22. A method comprising:
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providing a prosthetic atrioventricular valve, which includes (a) a support frame, (b) a covering, which at least partially covers the support frame, wherein the support frame and the covering are shaped so as to define a downstream skirt, (c) a plurality of prosthetic leaflets, coupled to at least one element selected from the group consisting of;
the support frame and the covering, and (d) an elongated anchoring member;placing the prosthetic valve at a native valve of a subject, such that the downstream skirt passes through an orifice of the native valve toward a ventricle of the subject; and anchoring the prosthetic valve to the native valve by positioning the elongated anchoring member around the downstream skirt in a subvalvular space, such that the anchoring member presses native leaflets of the native valve against the downstream skirt. - View Dependent Claims (23, 24, 25)
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26. A method comprising:
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providing a prosthetic atrioventricular valve, which includes (a) a support frame, (b) a covering, which at least partially covers the support frame, wherein the support frame and the covering are shaped so as to define a downstream skirt, (c) a plurality of prosthetic leaflets, coupled to at least one element selected from the group consisting of;
the support frame and the covering, and (d) a plurality of subvalvular anchoring elements, coupled to the downstream skirt;placing the prosthetic valve at a native valve of a subject, such that the downstream skirt passes through an orifice of the native valve toward a ventricle of the subject; and anchoring the prosthetic valve to the native valve by causing the subvalvular anchoring elements to pierce native leaflets of the native valve, pass through to a subvalvular space, and apply a force against the ventricular surface of the native leaflets. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
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36-45. -45. (canceled)
Specification