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Stent having struts with reverse direction curvature

  • US 7,763,064 B2
  • Filed: 06/08/2004
  • Issued: 07/27/2010
  • Est. Priority Date: 06/08/2004
  • Status: Active Grant
First Claim
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1. A stent, comprising:

  • a plurality of interconnected circumferential bands defining a cylindrical structure having a longitudinal axis;

    each of the circumferential bands having a generally serpentine pattern and comprising a plurality of struts and a plurality of loops, wherein each end of a strut is coupled to an end of a loop;

    at least one of the circumferential bands having at least two consecutive struts comprising a plurality of arcuate sections, wherein each arcuate section in each strut has reverse curvature of opposing arcuate sections extending from each end to the mid-section of the strut wherein the plurality of arcuate sections in the strut substantially straighten during compression of the stent;

    wherein each strut with arcuate sections has a cross-sectional area that is larger at the strut ends than in the midsection of the strut;

    said adjacent struts having varying lengths to produce axially offset positions of adjacent loops.

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