PROSTHETIC HEART VALVE INCLUDING STENT STRUCTURE AND TISSUE LEAFLETS, AND RELATED METHODS
First Claim
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1. A method of making a prosthetic heart valve comprising:
- providing an annular stent having a plurality of annularly spaced commissure portions, each commissure portion having a tip;
covering each of the tips with a first fabric cover, the first fabric cover not extending to a remainder of the annular stent;
covering the first fabric covers and the remainder of the annular stent with a second fabric cover;
covering the second fabric cover with a first tissue membrane; and
covering the first tissue membrane with a second tissue membrane, the second tissue membrane forming leaflet portions that extend inwardly between the commissure portions.
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Abstract
A method of making a prosthetic heart valve may include providing an annular stent having a plurality of annularly spaced commissure portions having tips, covering each of the tips with a first fabric cover, covering the first fabric covers and the remainder of the stent with a second fabric cover, covering the second fabric cover with a first tissue membrane, and covering the outside of the first tissue membrane with a second tissue membrane, the second tissue membrane forming leaflet portions that extend inwardly between the commissure portions.
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Citations
20 Claims
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1. A method of making a prosthetic heart valve comprising:
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providing an annular stent having a plurality of annularly spaced commissure portions, each commissure portion having a tip; covering each of the tips with a first fabric cover, the first fabric cover not extending to a remainder of the annular stent; covering the first fabric covers and the remainder of the annular stent with a second fabric cover; covering the second fabric cover with a first tissue membrane; and covering the first tissue membrane with a second tissue membrane, the second tissue membrane forming leaflet portions that extend inwardly between the commissure portions. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of making a prosthetic heart valve comprising:
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providing an annular stent having a plurality of annularly spaced commissure portions, each commissure portion having a tip; covering each of the commissure tips with a fabric tip cover; covering the tip covers and a remainder of the stent with an additional fabric cover; covering the additional fabric cover with a tissue cover; and mounting additional tissue around a radially outer surface of the tissue cover, the additional tissue including leaflet portions that extend inwardly between annularly adjacent ones of the commissure portions. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of making a prosthetic heart valve comprising:
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providing an annular stent having a plurality of annularly spaced commissure portions, a radially inner surface and a radially outer surface; covering the radially inner surface and the radially outer surface of the stent with a fabric cover; covering the radially inner surface and the radially outer surface of the fabric cover with a tissue cover; and securing additional tissue around the radially outer surface of the tissue cover, the additional tissue including leaflet portions that extend inwardly between annularly adjacent ones of the commissure portions. - View Dependent Claims (17, 18, 19, 20)
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Specification