Prosthetic heart valves with flexible leaflets and leaflet edge clamping
First Claim
Patent Images
1. A prosthetic heart valve comprising:
- a stent structure that extends annularly around the valve and that includes a plurality of stent post structures that are spaced from one another around the valve;
a plurality of leaflets that extend radially inward from the stent structure, each of the leaflets being preformed with a pocket that receives at least a portion of the stent structure therein, the pocket having a radially outer portion that lies against a radially outer surface of the stent structure including the stent post structures; and
a clamping structure that fits over the radially outer portions of the leaflets and that clamps the radially outer portions of the leaflets to the stent structure including the stent post structures substantially along the entire radially outer surface of the stent structure including the stent post structures.
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Abstract
A prosthetic heart valve includes an annular stent structure having a plurality of annularly spaced stent post regions, a plurality of leaflets that extend radially inward from the stent structure and that include radially outer portions that lie against a radially outer surface of the stent structure, and a clamping structure that is radially outside the other components and that clamps the radially outer portions of the leaflets against the radially outer surface of the stent structures to secure the leaflets to the stent structure. The above-described structural arrangement applies to the stent post regions as well as to other portions of the stent structure.
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Citations
18 Claims
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1. A prosthetic heart valve comprising:
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a stent structure that extends annularly around the valve and that includes a plurality of stent post structures that are spaced from one another around the valve; a plurality of leaflets that extend radially inward from the stent structure, each of the leaflets being preformed with a pocket that receives at least a portion of the stent structure therein, the pocket having a radially outer portion that lies against a radially outer surface of the stent structure including the stent post structures; and a clamping structure that fits over the radially outer portions of the leaflets and that clamps the radially outer portions of the leaflets to the stent structure including the stent post structures substantially along the entire radially outer surface of the stent structure including the stent post structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16)
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10. A prosthetic heart valve comprising:
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a stent member that extends annularly around the valve and that includes a plurality of stent post regions substantially parallel to a longitudinal axis that passes through the valve and about which the valve is annular, the stent post regions being spaced from one another in a direction that is annular to the valve; a plurality of leaflets that extend radially inward from the stent member, each of the leaflets being preformed with a pocket that receives at least a portion of the stent member therein, the pocket having a radially outer portion that lies against the radially outer surface of the stent member including the stent post regions; and a clamping structure that is disposed radially outside of a radially outer surface of the radially outer portions of the leaflets and that clamps the radially outer portions of the leaflets radially inwardly against substantially the entire radially outer surface of the stent member including the stent post regions. - View Dependent Claims (11, 12, 13, 14, 15, 17, 18)
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Specification