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Stent having an expandable web structure

  • US 8,343,208 B2
  • Filed: 11/18/2010
  • Issued: 01/01/2013
  • Est. Priority Date: 09/05/1998
  • Status: Active Grant
First Claim
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1. A stent comprising:

  • a tubular body having a longitudinal axis, and having a proximal, a distal end, and a lumen extending longitudinally therebetween, and a wall having areas thereof removed to define a web structure configured for circumferential expansion from a contracted delivery configuration to an expanded deployed configuration;

    the web structure comprising a plurality of web patterns interconnected with one another at a plurality of X-shaped transition sections, and that are arranged so that the web patterns are situated side-by-side along the longitudinal length of the tubular body, with each web pattern also extending circumferentially around the wall;

    at least one of said interconnected web patterns comprising,at least three webs joined end-to-end so as to extend between a first pair of X-shaped transition sections with no intervening X-shaped transition sections between the first pair of X-shaped transition sections;

    said three webs that are joined end-to-end being joined by two bends so that the bends permit the three webs to be generally foldable between the first pair of X-shaped transition sections when said tubular body is in the contracted delivery configuration, and then unfolded when said tubular body is expanded to the deployed configuration;

    a single web connected between a second pair of X-shaped transition sections with no intervening X-shaped transition sections between the second pair of interconnection locations; and

    said at least three webs each comprising a plurality of web sections, with one of the web sections being angled relative to one other web section when the stent is in the expanded deployed configuration.

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