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Stent placement instrument and method

  • US 5,078,720 A
  • Filed: 05/02/1990
  • Issued: 01/07/1992
  • Est. Priority Date: 05/02/1990
  • Status: Expired due to Term
First Claim
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1. An instrument for the placement of a self-expanding stent in the prostatic urethra which comprises, a substantially rigid elongated inner tube having a proximal end, a distal end and a central axis, a hollow outer tube disposed about said inner tube along the axis thereof and adapted to carry a self-expanding stent adjacent said proximal end, and means for retaining and releasing said stent, in combination with at least one of the following components:

  • - (a) location means for positioning and fixing the instrument so that the stent is released at a desired location within the prostatic urethra, which location means comprises an inflatable balloon which is adapted, when inflated, to be positioned adjacent the external sphincter at a predetermined distance from the prostate so that the stent will be released at the desired location within the prostatic urethra, and (b) means for releasing the stent in a retrograde manner.

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