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Radially-expandable stent and delivery system

  • US 20030144731A1
  • Filed: 02/11/2003
  • Published: 07/31/2003
  • Est. Priority Date: 02/05/1998
  • Status: Abandoned Application
First Claim
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1. A radially expandable stent for implantation within a body lumen comprising:

  • an elongated generally tubular body defining a passageway having a longitudinal axis;

    the body comprising a plurality of circumferential support sections arranged successively along the longitudinal axis, each of the support sections having a length along the longitudinal axis;

    each of the circumferential support sections comprising a plurality of primary bends interconnected by struts, the primary bends being located on alternating ends of the support section around the circumference of the body, each of the struts connecting successive primary bends on opposite ends of the support section and having a midpoint generally located therebetween; and

    at least one longitudinal member connecting adjacent support sections in the body, the longitudinal member having a first end attached proximate the midpoint of one of the struts and a second end attached proximate the midpoint of one of the struts in the adjacent support section;

    wherein the stent is radially compressible into a compressed state in which the struts are generally aligned with the longitudinal axis and radially expandable into an expanded state in which the struts and the primary bends in each of the support sections are arranged in a zigzag pattern, and further wherein the longitudinal length of the stent in the compressed state is substantially the same as the longitudinal length of the stent in the expanded state.

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