Heart valve prosthesis with collapsible valve and method of delivery thereof
First Claim
Patent Images
1. A prosthetic cardiac valve support device comprising:
- an annular support element configured for positioning at or near a native heart valve annulus;
at least two valve support extensions shaped to extend through commissures of the native heart valve for supporting a flexible valve; and
at least two anchoring extensions;
attached at one end to said annular support element, and extending in an opposite direction towards an unattached end;
in a form of hooks shaped for anchoring said annular support element to tissue;
all of the anchoring extensions being adapted to extend through commissures of a native heart valve without interfering with movement of native heart valve leaflets; and
the anchoring extensions shaped to prevent said annular support element from shifting upstream relative to the native heart valve annulus.
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Abstract
A valve prosthesis is adapted to operate in conjunction with native heart valve leaflets. The prosthesis includes an annulus and a skirt extending from the annulus. The skirt may be configured to be positioned through a native heart valve annulus, and the skirt may be movable between an open configuration permitting blood flow through the skirt and a closed configuration blocking blood flow through the skirt in cooperation with opening and closing of the native heart valve leaflets.
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Citations
17 Claims
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1. A prosthetic cardiac valve support device comprising:
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an annular support element configured for positioning at or near a native heart valve annulus; at least two valve support extensions shaped to extend through commissures of the native heart valve for supporting a flexible valve; and at least two anchoring extensions; attached at one end to said annular support element, and extending in an opposite direction towards an unattached end; in a form of hooks shaped for anchoring said annular support element to tissue; all of the anchoring extensions being adapted to extend through commissures of a native heart valve without interfering with movement of native heart valve leaflets; and the anchoring extensions shaped to prevent said annular support element from shifting upstream relative to the native heart valve annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for providing support for a cardiac valve comprising:
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placing an annular support element for a cardiac valve upstream of a native heart valve annulus; extending at least two valve support extensions shaped to extend through commissures of the native heart valve for supporting a flexible valve; extending at least two anchoring extensions; attached at one end to said annular support element and extending in an opposite direction towards an unattached end; in a form of hooks shaped for anchoring said annular support element to tissue; and all of the anchoring extensions being adapted to extend through commissures of a native heart valve without interfering with movement of native heart valve leaflets, so as to prevent said annular support element from shifting upstream relative to the native heart valve annulus. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification