Expandable medical implant and percutaneous delivery
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United States of America Patent
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Oct 19, 2004
Grant Date -
Oct 9, 2003
app pub date -
Jun 17, 2002
filing date -
Jun 2, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
An expandable annular ring for implantation in a valvular annulus and its percutaneous use thereof comprises a plurality of stenting elements made of a first shape-memory material having a first shape-transition temperature, wherein the first shape-memory material expands to a preshape when the first shape-memory material is heated to above the first shape-transition temperature; and a plurality of anchoring elements made of a second shape-memory material having a second shape-transition temperature that is higher than the first shape-transition temperature, wherein the second shape-memory material expands to the second preshape when the second shape-memory material is heated to above the second shape-transition temperature.
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