Prosthetic valve for replacing mitral valve
First Claim
1. A prosthetic apparatus for implantation at the native mitral valve region of the heart, the native mitral valve having a native annulus, a native anterior leaflet, and a native posterior leaflet, the prosthetic apparatus comprising:
- a main body comprising a lumen and configured for placement within the native annulus, the main body being radially compressible to a radially compressed state for delivery into the heart and self-expandable from the compressed state to a radially expanded state;
a valve structure comprising three leaflets made from pericardium, the valve structure mounted within the lumen of the main body;
an atrial sealing member disposed along an atrial portion of the main body; and
a plurality of ventricular anchors coupled to a ventricular portion of the main body and positioned outside the lumen of the main body, wherein a leaflet-receiving space is provided between each of the ventricular anchors and an outer surface of the main body.
1 Assignment
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Accused Products
Abstract
A prosthetic apparatus for implantation in a native mitral valve includes a main body for placement within the native mitral annulus. The main body is compressible to a radially compressed state for delivery into the heart and is self-expandable from the compressed state to a radially expanded state for implantation. A valve structure is mounted within a lumen of the main body and preferably forms three leaflets made of pericardium. An atrial sealing member is disposed along an atrial portion of the main body and ventricular anchors are coupled to a ventricular portion of the main body. The atrial sealing member impedes the flow of blood between the main body and the native annulus. The ventricular anchors are positioned outside the main body for capturing native mitral valve leaflets between the main body and the ventricular anchors.
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Citations
18 Claims
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1. A prosthetic apparatus for implantation at the native mitral valve region of the heart, the native mitral valve having a native annulus, a native anterior leaflet, and a native posterior leaflet, the prosthetic apparatus comprising:
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a main body comprising a lumen and configured for placement within the native annulus, the main body being radially compressible to a radially compressed state for delivery into the heart and self-expandable from the compressed state to a radially expanded state; a valve structure comprising three leaflets made from pericardium, the valve structure mounted within the lumen of the main body; an atrial sealing member disposed along an atrial portion of the main body; and a plurality of ventricular anchors coupled to a ventricular portion of the main body and positioned outside the lumen of the main body, wherein a leaflet-receiving space is provided between each of the ventricular anchors and an outer surface of the main body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A prosthetic apparatus for implantation at the native mitral valve region of the heart, the native mitral valve having a native annulus and native valve leaflets, the leaflets comprising a free edge portion and an annulus connection portion, the prosthetic apparatus comprising:
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a main body configured for placement within the native mitral valve, the main body being compressible to a compressed state for delivery into the heart and expandable from the compressed state to an expanded state; at least one ventricular anchor coupled to and disposed outside the main body such that, in the expanded state, a leaflet-receiving space exists between the ventricular anchor and an outer surface of the main body to receive a free edge portion of a native valve leaflet, the ventricular anchor comprising an engagement portion configured to extend behind the received native leaflet and engage a ventricular surface of the native mitral annulus, the annulus connection portion of the received native leaflet, or both the ventricular surface of the native annulus and the annulus connection portion of the received native leaflet; and at least one atrial anchor coupled to and disposed outside the main body, the at least one atrial anchor being configured to engage an atrial portion of the native mitral annulus, the annulus connection portion of the received native leaflet, or both the atrial surface of the native annulus and the annulus connection portion of the received native leaflet, at a location opposite the engagement portion of the ventricular anchor for retention of the prosthetic apparatus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification