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Bendable stent

  • US 9,050,203 B2
  • Filed: 08/23/2013
  • Issued: 06/09/2015
  • Est. Priority Date: 04/03/2007
  • Status: Active Grant
First Claim
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1. A stent comprisinga matrix of struts disposed parallel to one another comprising:

  • a plurality of loops disposed along a longitudinal axis of the stent comprising;

    end-zone loops composed of tied cusps, free cusps and radiopaque markers;

    andintermediate-zone loops composed of tied cusps and free cusps,wherein tied cusps and free cusps of end-zone loops and intermediate-zone loops connect adjacent struts;

    anda bridge connecting a tied cusp of one loop head-to-head with a tied cusp of an adjacent loopwherein all of the free cusps on one end of the end-zone loop and all of the radiopaque markers of the end-zone loop are disposed to touch a notional circle transverse to the longitudinal axis of the stent such that the stress imposed on the stent by a pushing annulus is shared among all of the free cusps and all of the radiopaque markers on the one end of the end-zone loops;

    wherein the radiopaque markers are distributed around the circumference of the end-zone loops, each of the markers positioned in a gap defined between outer surfaces of adjacent end cusps;

    andwherein the adjacent struts connected by a tied cusp have different lengths, and at least one free cusp in each loop joins two struts of approximately equal length.

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