Minimally-invasive cardiac-valve prosthesis
First Claim
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1. A method of repairing a native aortic valve, the method comprising:
- positioning a cardiac valve prosthesis at an implantation site corresponding to the location of the native aortic valve, the cardiac valve prosthesis including an armature and a set of valve leaflets, the armature having a first end portion distal to the set of valve leaflets, an opposite second end portion proximal to the set of valve leaflets, a principal axis extending longitudinally through the first end portion and the second end portion, a plurality of valve support ribs extending longitudinally from the first end portion to the second end portion, and a plurality of anchoring ribs, wherein each of the plurality of anchoring ribs extends longitudinally from the first end portion to the second end portion, the set of valve leaflets coupled to and supported by the valve support ribs; and
allowing the armature to expand such that each of the plurality of anchoring ribs arches longitudinally radially outward from the principal axis to anchor the cardiac valve prosthesis at the implantation site.
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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.
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Citations
20 Claims
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1. A method of repairing a native aortic valve, the method comprising:
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positioning a cardiac valve prosthesis at an implantation site corresponding to the location of the native aortic valve, the cardiac valve prosthesis including an armature and a set of valve leaflets, the armature having a first end portion distal to the set of valve leaflets, an opposite second end portion proximal to the set of valve leaflets, a principal axis extending longitudinally through the first end portion and the second end portion, a plurality of valve support ribs extending longitudinally from the first end portion to the second end portion, and a plurality of anchoring ribs, wherein each of the plurality of anchoring ribs extends longitudinally from the first end portion to the second end portion, the set of valve leaflets coupled to and supported by the valve support ribs; and allowing the armature to expand such that each of the plurality of anchoring ribs arches longitudinally radially outward from the principal axis to anchor the cardiac valve prosthesis at the implantation site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of repairing a native aortic valve, the method comprising:
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positioning a cardiac valve prosthesis at an implantation site corresponding to the location of the native aortic valve, the cardiac valve prosthesis including an armature and a set of valve leaflets, the armature having a first end portion, an opposite second end portion, a principal axis extending through the first end portion and the second end portion, a plurality of valve support ribs extending between the first end portion and the second end portion, and a plurality of anchoring ribs, wherein each of the plurality of anchoring ribs is directly connected to the first end portion and to the second end portion and extends from the first end portion to the second end portion, the set of valve leaflets coupled to and supported by the valve support ribs; and allowing the armature to radially expand such that each of the plurality of anchoring ribs includes a top portion, a bottom portion, and an intermediate portion that arches radially outward from and coplanar with the top portion and the bottom portion and with the principal axis to anchor the cardiac valve prosthesis at the implantation site. - View Dependent Claims (17, 18, 19, 20)
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Specification