Minimally-invasive cardiac-valve prosthesis
First Claim
1. A cardiac-valve prosthesis adapted for percutaneous implantation, the prosthesis comprising:
- an armature adapted for deployment in a radially expanded implantation position, the armature including a support portion and an anchor portion, which are substantially axially coextensive with respect to one another, the anchor portion and the support portion adapted to assume independent radially expanded configurations when the armature is in the radially expanded implantation position; and
a plurality of leaflets coupled to the support portion, which can be deployed with the armature in the implantation position, wherein the leaflets define, in the implantation position, a flow duct;
wherein the anchor portion can be deployed to enable anchorage of the cardiac-valve prosthesis at an implantation site.
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Accused Products
Abstract
A cardiac-valve prosthesis is adapted for percutaneous implantation. The prosthesis includes an armature adapted for deployment in a radially expanded implantation position, the armature including a support portion and an anchor portion, which are substantially axially coextensive with respect to one another. A set of leaflets is coupled to the support portion. The leaflets can be deployed with the armature in the implantation position. The leaflets define, in the implantation position, a flow duct that is selectably obstructable. The anchor portion can be deployed to enable anchorage of the cardiac-valve prosthesis at an implantation site.
927 Citations
28 Claims
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1. A cardiac-valve prosthesis adapted for percutaneous implantation, the prosthesis comprising:
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an armature adapted for deployment in a radially expanded implantation position, the armature including a support portion and an anchor portion, which are substantially axially coextensive with respect to one another, the anchor portion and the support portion adapted to assume independent radially expanded configurations when the armature is in the radially expanded implantation position; and a plurality of leaflets coupled to the support portion, which can be deployed with the armature in the implantation position, wherein the leaflets define, in the implantation position, a flow duct; wherein the anchor portion can be deployed to enable anchorage of the cardiac-valve prosthesis at an implantation site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cardiac-valve prosthesis adapted for percutaneous delivery and implantation at an anatomical valve site having a Valsalva sinus, the prosthesis comprising:
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an armature adapted for delivery in a radially-compressed configuration and deployment in a radially-expanded configuration at the valve site, the armature including a support portion and an anchor portion; and a plurality of leaflets coupled to the support portion, which can be deployed with the armature in the radially-expanded configuration, wherein the leaflets define a flow duct; wherein the anchor portion includes ribs that in the radially-expanded configuration generally conform to the Valsalva sinus to enable anchorage of the cardiac-valve prosthesis at the valve site. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A cardiac valve prosthesis comprising:
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an armature adapted to anchor the prosthesis at an implantation site generally corresponding to a location of a natural cardiac valve; a plurality of prosthetic valve leaflets coupled to the armature and defining a flow duct; and an apron-like portion coupled to the prosthetic valve leaflets, the apron-like portion being shaped to extend radially outward with respect to the flow duct and configured to substantially prevent flow outside the flow duct when the prosthesis is anchored at the implantation site. - View Dependent Claims (22, 23, 24, 25)
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- 26. A cardiac valve prosthesis adapted for anchorage at an implantation site generally corresponding to a natural cardiac valve having an annulus, the prosthesis comprising a valve portion defining a flow duct, and an apron-like portion adapted to be positioned proximal to the annulus and to substantially prevent flow outside the flow duct when the prosthesis is anchored at the implantation site.
Specification