Prosthetic valve for avoiding obstruction of outflow
First Claim
1. A prosthetic heart valve for implantation in a native mitral valve of a patient, said heart valve comprisinga radially expandable anchor frame having an expanded configuration and a collapsed configuration,wherein the anchor frame further comprises one or more commissure posts, and an anterior anchoring tab, the one or more commissure posts having a free end and an opposite end coupled to the anchor frame,wherein the anterior anchoring tab is configured to anchor on an anterior portion of the native mitral valve,wherein the anterior anchoring tab originates from the one or more commissure posts, or wherein the one or more commissure posts originate from the anterior anchoring tab,wherein the anchor frame further comprises a plurality of wishbone shaped struts originating from the one or more commissure posts, wherein the plurality of wishbone shaped struts are configured to arcuatelv span the distance between adjacent commissure posts, and wherein each wishbone shaped strut is comprised of an anchoring element adjacent a free end of the wishbone shaped strut, the anchoring element configured to engage a delivery catheter;
- anda prosthetic valve coupled to the anchor frame, the prosthetic valve comprising a plurality of prosthetic valve leaflets each having a free end and a fixed end, wherein the fixed end is coupled to the anchor frame, and wherein the free ends of the plurality of prosthetic valve leaflets have an open configuration and a closed configuration, in the open configuration the free ends are disposed away from one another to allow antegrade blood flow therethrough, and in the closed configuration the free ends are disposed adjacent one another to substantially prevent retrograde blood flow therethrough,wherein the one or more commissure posts are coupled to the plurality of prosthetic valve leaflets, andwherein the plurality of prosthetic valve leaflets comprise an anterior prosthetic leaflet sized to span the entire width of the native anterior leaflet, andwherein in systole, the anterior prosthetic leaflet deflects away from the left ventricular outflow tract to provide a clear unobstructed outflow path.
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Accused Products
Abstract
A prosthetic mitral valve may be anchored in a native mitral valve. The prosthetic mitral valve preferably has a large anterior prosthetic leaflet that spans the entire width of the native anterior leaflet and the anterior prosthetic leaflet moves away from left ventricular outflow tract during systole to create a clear unobstructed outflow path.
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Citations
15 Claims
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1. A prosthetic heart valve for implantation in a native mitral valve of a patient, said heart valve comprising
a radially expandable anchor frame having an expanded configuration and a collapsed configuration, wherein the anchor frame further comprises one or more commissure posts, and an anterior anchoring tab, the one or more commissure posts having a free end and an opposite end coupled to the anchor frame, wherein the anterior anchoring tab is configured to anchor on an anterior portion of the native mitral valve, wherein the anterior anchoring tab originates from the one or more commissure posts, or wherein the one or more commissure posts originate from the anterior anchoring tab, wherein the anchor frame further comprises a plurality of wishbone shaped struts originating from the one or more commissure posts, wherein the plurality of wishbone shaped struts are configured to arcuatelv span the distance between adjacent commissure posts, and wherein each wishbone shaped strut is comprised of an anchoring element adjacent a free end of the wishbone shaped strut, the anchoring element configured to engage a delivery catheter; - and
a prosthetic valve coupled to the anchor frame, the prosthetic valve comprising a plurality of prosthetic valve leaflets each having a free end and a fixed end, wherein the fixed end is coupled to the anchor frame, and wherein the free ends of the plurality of prosthetic valve leaflets have an open configuration and a closed configuration, in the open configuration the free ends are disposed away from one another to allow antegrade blood flow therethrough, and in the closed configuration the free ends are disposed adjacent one another to substantially prevent retrograde blood flow therethrough, wherein the one or more commissure posts are coupled to the plurality of prosthetic valve leaflets, and wherein the plurality of prosthetic valve leaflets comprise an anterior prosthetic leaflet sized to span the entire width of the native anterior leaflet, and wherein in systole, the anterior prosthetic leaflet deflects away from the left ventricular outflow tract to provide a clear unobstructed outflow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of treating a native mitral valve in a patient'"'"'s heart, said method comprising:
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providing a prosthetic mitral valve having an anterior prosthetic leaflet that spans a width of a native anterior valve leaflet; anchoring the prosthetic mitral valve in the native mitral valve, wherein anchoring the prosthetic mitral valve comprises actuating an actuator mechanism on a delivery system in a first direction, wherein actuating the actuator mechanism in the first direction comprises moving a sheath catheter away from the prosthetic mitral valve to remove a constraint thereby allowing the prosthetic mitral valve to expand, and actuating the actuator mechanism in a second direction opposite the first direction, wherein actuating the actuator mechanism in the second direction comprises moving a sheath catheter toward the prosthetic mitral valve to provide a constraint thereby forcing the prosthetic mitral valve to be compressed, and wherein actuating the actuator mechanism in the first direction further comprises moving a bell catheter away from an anchoring catheter to remove a constraint thereby allowing a commissure anchor to be released, wherein the commissure anchor comprises an anchoring element that engages a frame of the prosthetic mitral valve to the delivery system, and wherein actuating the actuator mechanism in the second direction comprises moving the bell catheter toward the anchoring catheter to provide a constraint that captures or restrains the commissure anchor and deflecting the prosthetic anterior leaflet in systole away from the left ventricular outflow tract during systole thereby creating an unobstructed outflow path. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification