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Prosthesis having a sleeve valve

  • US 20030060894A1
  • Filed: 07/29/2002
  • Published: 03/27/2003
  • Est. Priority Date: 08/31/1998
  • Status: Active Grant
First Claim
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1. A prosthesis for placement in a patient comprising:

  • a tubular stent having a passage extending longitudinally therethrough; and

    a sleeve extending from an end of the tubular stent and having a lumen extending longitudinally therethrough and communicating with the passage of the tubular drainage stent, the sleeve permitting the passage of a fluid through the lumen in a first direction in response to the fluid applying a first pressure to the sleeve in the first direction, the sleeve being collapsible so as to substantially close the lumen in response to a fluid applying a second pressure to the sleeve in a second direction, wherein the sleeve includes a portion having increased resistance to being inverted through the tubular stent in response to the second pressure.

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