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Apparatus for a stent having an expandable web structure and delivery system

  • US 7,842,078 B2
  • Filed: 07/30/2004
  • Issued: 11/30/2010
  • Est. Priority Date: 09/05/1998
  • Status: Expired due to Fees
First Claim
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1. A system for supporting a body lumen, the system comprising:

  • a tubular body having a longitudinal axis, and having proximal and distal ends and a lumen extending longitudinally therebetween, and a wall having areas thereof that 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 connection elements, 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 pair of connection elements with no other connection elements between the pair of connection elements;

    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 pair of connection elements when said tubular body is in the contracted deliver configuration, and then unfolded when said tubular body is expanded to the deployed configuration; 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; and

    a catheter configured to accept the tubular body in the contracted delivery configuration, the catheter configured to deliver the tubular body intravascularly and to transition the tubular body from the contracted delivery configuration to the expanded deployed configuration.

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