Self-expanding stent with polygon transition zone
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United States of America Patent
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Feb 21, 2017
Grant Date -
May 26, 2011
app pub date -
May 13, 2010
filing date -
May 14, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
The self-expanding stent of the present invention provides for a transition zone between the main body of the stent and the end zone, comprising a plurality of n-sided polygons where the surface area of the adjacent polygons in the transition zone is unequal. In one embodiment, the surface area of the polygons in the transition zone increases circumferentially across the transition zone in a clockwise or counterclockwise manner. The polygons are formed from two pairs of undulations which are connected by segments. The bending moment of the undulations is equal within each polygon and constant across the transition zone.
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