Transcatheter mitral valve prosthesis
First Claim
1. A prosthetic mitral valve for anchoring in a patient'"'"'s heart having a native mitral valve, said prosthetic mitral valve comprising:
- an anchor having a collapsed configuration for delivery to the heart and an expanded configuration for anchoring the prosthetic mitral valve to the native mitral valve,wherein the anchor comprises a ventricular skirt comprising a first trigonal anchoring tab disposed on an anterior portion of the ventricular skirt extending radially outward and facing toward an atrium of the patient'"'"'s heart when the anchor is in the expanded configuration, the first trigonal anchoring tab configured to engage a first fibrous trigone on a first side of an anterior leaflet of the patient'"'"'s native mitral valve such that the anterior leaflet is disposed between the first trigonal anchoring tab and an anterior surface of the anchor when the anchor is in the expanded configuration and anchored to the native mitral valve and configured such that adjacent chordae tendineae are disposed between the first trigonal anchoring tab and the anterior surface of the anchor when the anchor is in the expanded configuration and anchored to the native mitral valve.
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Accused Products
Abstract
A prosthetic cardiac valve comprises an anchor having an atrial skirt, an annular region, and a ventricular skirt. The prosthetic valve also has a plurality of prosthetic valve leaflets each having a first end and a free end. The first end is coupled with the anchor and the free end is opposite the first end. The prosthetic cardiac valve has an open configuration in which the free ends of the prosthetic valve leaflets are disposed away from one another to allow antegrade blood flow therepast, and a closed configuration in which the free ends of the prosthetic valve leaflets engage one another and substantially prevent retrograde blood flow therepast. The anchor has a collapsed configuration for delivery to the heart and an expanded configuration for anchoring the prosthetic cardiac valve to a patient'"'"'s heart.
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Citations
27 Claims
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1. A prosthetic mitral valve for anchoring in a patient'"'"'s heart having a native mitral valve, said prosthetic mitral valve comprising:
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an anchor having a collapsed configuration for delivery to the heart and an expanded configuration for anchoring the prosthetic mitral valve to the native mitral valve, wherein the anchor comprises a ventricular skirt comprising a first trigonal anchoring tab disposed on an anterior portion of the ventricular skirt extending radially outward and facing toward an atrium of the patient'"'"'s heart when the anchor is in the expanded configuration, the first trigonal anchoring tab configured to engage a first fibrous trigone on a first side of an anterior leaflet of the patient'"'"'s native mitral valve such that the anterior leaflet is disposed between the first trigonal anchoring tab and an anterior surface of the anchor when the anchor is in the expanded configuration and anchored to the native mitral valve and configured such that adjacent chordae tendineae are disposed between the first trigonal anchoring tab and the anterior surface of the anchor when the anchor is in the expanded configuration and anchored to the native mitral valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A prosthetic mitral valve for anchoring in a patient'"'"'s heart having a native mitral valve, said prosthetic mitral valve comprising:
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a plurality of prosthetic valve leaflets, each of the leaflets having a fixed end and a free end opposite of the fixed end, wherein the prosthetic mitral valve, when anchored in the mitral valve, has an open configuration in which the free ends of the prosthetic valve leaflets are disposed away from one another to allow antegrade blood flow therepast and a closed configuration in which the free ends of the prosthetic valve leaflets engage one another and substantially prevent retrograde blood flow therepast; and an anchor coupled to the plurality of prosthetic valve leaflets at the fixed ends, the anchor having a collapsed configuration for delivery to the heart and an expanded configuration for anchoring the prosthetic mitral valve to the native mitral valve, wherein the anchor comprises; an atrial skirt configured to expand radially outward so as to lie over a superior surface of the patient'"'"'s native mitral valve and anchor against a portion of an atrium of the patient'"'"'s heart when the anchor is anchored in the native mitral valve in the expanded configuration; an annular region configured to expand radially outward so as to conform with an annulus of the native mitral valve when in the expanded configuration and configured to be anchored to the native mitral valve; and a ventricular skirt comprising first and second trigonal anchoring tabs disposed on an anterior portion of the ventricular skirt, the first and second trigonal anchoring tabs extending radially outward and facing toward the atrium when the anchor is in the expanded configuration, and wherein the first and second trigonal anchoring tabs are configured to respectively engage first and second fibrous trigones on first and second sides, respectively, of an anterior leaflet of the patient'"'"'s native mitral valve such that a first portion of the anterior leaflet is disposed between the first trigonal anchoring tab and a first part of an anterior surface of the ventricular skirt and a second portion of the anterior leaflet is disposed between the second trigonal anchoring tab and a second part of the anterior surface of the ventricular skirt when the anchor in the expanded configuration and anchored to the native mitral valve, and wherein adjacent chordae tendineae are disposed between one or more of the first trigonal anchoring tab or the second trigonal anchoring tab of the ventricular skirt and the anterior surface of the ventricular skirt when then anchor is in the expanded configuration and anchored to the native mitral valve, and wherein the ventricular skirt further comprises a posterior anchoring tab disposed on a posterior portion of the ventricular skirt extending radially outward to engage a posterior portion of the native mitral valve, wherein a posterior leaflet of the native mitral valve is disposed between the posterior anchoring tab and an outer posterior surface of the ventricular skirt or the anchor when the anchor is in the expanded configuration and anchored in the native mitral valve, and wherein one or more of the atrial skirt, the annular region, and the ventricular skirt have an asymmetrically shaped D-shaped cross-section with a substantially flat anterior portion and a cylindrically shaped posterior portion to conform with a shape of the mitral valve and surrounding anatomy, thus avoiding or minimizing left ventricular outflow tract (LVOT) impingement when the anchor is anchored in the native mitral valve in the expanded configuration. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification