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Stent with valve and method of use thereof

  • US 20040093075A1
  • Filed: 12/01/2003
  • Published: 05/13/2004
  • Est. Priority Date: 12/15/2000
  • Status: Abandoned Application
First Claim
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1. A valve device comprising an elongate, self-expanding, medical stent for a bodily lumen, which stent has a radially-compressed delivery configuration and a radially-expanded deployed configuration, the stent defining in said deployed configuration a stent lumen for flow of a bodily fluid lengthwise with respect to the stent within the bodily lumen and lengthwise within the bodily lumen, the stent supporting a valve leaflet which can move, in the deployed configuration tof the stent, between an open configuration to allow fluid flow along said stent lumen in one direction and a closed configuration in which the leaflet resists fluid flow along the stent lumen in a direction opposite to said one direction;

  • characterised in that;

    said leaflet has a free periphery unattached to the stent and a resilient wire which extends around a substantial part of the length of said free periphery whereby, upon self-expansion of the stent from the delivery to the deployed configuration, the wire brings the leaflet into a disposition in which the leaflet extends across the stent lumen to an extent sufficient to permit fluid pressure differentials across the ends of the stent lumen to move the leaflet between its open and closed configurations.

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