Expandable/retractable stent and methods thereof
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United States of America Patent
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Jun 20, 2000
Grant Date -
N/A
app pub date -
Feb 20, 1999
filing date -
Feb 20, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A retractable intraluminal medical device for treating tissues in a patient, the device comprising an elongate radially expandable/retractable tubular stent having an interior luminal portion and an opposite exterior portion extending along a longitudinal stent axis; a first of the plurality construction materials being a shape-memory Nitinol, the shape-memory Nitinol having a preshape and a shape transition temperature, wherein the shape-memory Nitinol retracts to its preshape and causes the expandable tubular stent to collapse when the shape-memory Nitinol is heated to above the shape transition temperature at a retracted state.
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