Tissue material and process for bioprosthesis
First Claim
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1. A bioprosthetic heart valve comprising:
- a fixed tissue having an elastin content of at least about 10% by weight of the tissue, wherein the tissue is vena cava tissue; and
a support structure selected from the group consisting of a suture ring and a stent to support the tissue of said bioprosthetic heart valve.
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Abstract
A biomaterial useful for bioprostheses such as bioprosthetic heart valves is provided in which the fixed tissue has improved elastic properties. The high elastin-containing biomaterial is further characterized by having anisotropic properties wherein the biological material has a greater stiffness in one direction and a greater elasticity in a cross direction. For instance, the biological material has an elastin content of about 30% by weight. In one embodiment, the biological material is vena cava tissue.
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Citations
5 Claims
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1. A bioprosthetic heart valve comprising:
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a fixed tissue having an elastin content of at least about 10% by weight of the tissue, wherein the tissue is vena cava tissue; and a support structure selected from the group consisting of a suture ring and a stent to support the tissue of said bioprosthetic heart valve. - View Dependent Claims (2, 3, 4, 5)
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Specification