Prosthetic heart valve including stent structure and tissue leaflets, and related methods
First Claim
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1. A prosthetic heart valve, comprising:
- an annular stent having an inner side, an outer side, an inflow edge and an outflow edge;
a first fabric cover over a portion of the outflow edge, the first fabric cover not extending to a remainder of the stent;
a second fabric cover that extends over the first fabric cover and over the remainder of the stent on the inner side of the stent and on the outer side of the stent;
a first tissue membrane covering the second fabric cover on the inner side of the stent and on the outer side of the stent; and
a second tissue membrane that surrounds the first tissue membrane on the outer side of the stent.
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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
16 Claims
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1. A prosthetic heart valve, comprising:
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an annular stent having an inner side, an outer side, an inflow edge and an outflow edge; a first fabric cover over a portion of the outflow edge, the first fabric cover not extending to a remainder of the stent; a second fabric cover that extends over the first fabric cover and over the remainder of the stent on the inner side of the stent and on the outer side of the stent; a first tissue membrane covering the second fabric cover on the inner side of the stent and on the outer side of the stent; and a second tissue membrane that surrounds the first tissue membrane on the outer side of the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification