Tissue material and process for bioprosthesis
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United States of America Patent
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Mar 13, 2007
Grant Date -
Aug 12, 2004
app pub date -
Nov 24, 2003
filing date -
Nov 26, 2002
priority date (Note) -
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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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