Prosthetic valve for replacing mitral valve
First Claim
1. A prosthetic apparatus for implanting at the native mitral valve region of the heart, the native mitral valve having a native annulus and native valve leaflets, 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;
at least one anchor coupled to and disposed outside of the main body, the anchor being coupled to the main body such that when the main body is compressed to the compressed state, a leaflet-receiving space between the anchor and an outer surface of the main body increases to receive a native valve leaflet therebetween, and when the main body expands to the expanded state in the absence of any radial inward forces on the main body or the anchor, the space decreases to capture the leaflet between the outer surface of the main body and the anchor; and
an annular flange portion extending radially outward from an atrial end of the main body, the annular flange portion comprising an atrial sealing member that blocks blood from flowing beyond the atrial end of the main body outside of the main body when the prosthetic apparatus is implanted.
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Accused Products
Abstract
Embodiments of prosthetic valves for implantation within a native mitral valve are provided. A preferred embodiment of a prosthetic valve includes a radially compressible main body and a one-way valve portion. The prosthetic valve further comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body. A space is provided between an outer surface of the main body and the ventricular anchor for receiving a native mitral valve leaflet. The prosthetic valve preferably includes an atrial sealing member adapted for placement above the annulus of the mitral valve. Methods and devices for delivering and implanting the prosthetic valve are also described.
950 Citations
21 Claims
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1. A prosthetic apparatus for implanting at the native mitral valve region of the heart, the native mitral valve having a native annulus and native valve leaflets, 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; at least one anchor coupled to and disposed outside of the main body, the anchor being coupled to the main body such that when the main body is compressed to the compressed state, a leaflet-receiving space between the anchor and an outer surface of the main body increases to receive a native valve leaflet therebetween, and when the main body expands to the expanded state in the absence of any radial inward forces on the main body or the anchor, the space decreases to capture the leaflet between the outer surface of the main body and the anchor; and an annular flange portion extending radially outward from an atrial end of the main body, the annular flange portion comprising an atrial sealing member that blocks blood from flowing beyond the atrial end of the main body outside of the main body when the prosthetic apparatus is implanted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A prosthetic apparatus for implantation within a native mitral valve of a heart, the native mitral valve having a native annulus and native valve leaflets, the prosthetic apparatus comprising:
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a tubular 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, the main body comprising an inflow end and an outflow end; a plurality of anchors coupled to and disposed outside of the main body, the anchors positioned to define a plurality of leaflet-receiving spaces between the anchors and an outer surface of the main body for receiving native valve leaflets therebetween, wherein each anchor comprises a first portion that extends in a ventricular direction beyond the outflow end of the main body and a second portion that extends back toward the inflow end of the main body along a length of the main body; and an annular flange portion extending radially outward from an atrial end of the main body, the annular flange portion comprising an atrial sealing member adapted to impede blood from flowing between the native mitral valve and the main body when the prosthetic apparatus is implanted. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification