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High-friction prostatic stent

  • US 5,059,169 A
  • Filed: 07/24/1990
  • Issued: 10/22/1991
  • Est. Priority Date: 07/07/1989
  • Status: Expired due to Term
First Claim
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1. An apparatus for the nonsurgical management of bladder outlet obstruction in a patient having an enlarged prostate, comprising:

  • an elongated body having an exterior surface, said body having first and second ends and defining a passage therethrough, said body being dimensioned to be received within the patient'"'"'s prostatic urethra and having a length sufficient to extend only from the patient'"'"'s bladder neck approximately to the patient'"'"'s verumontanum;

    said body being sufficiently flexible to accommodate an anatomical bend of said prostatic urethra and sufficiently stiff to maintain patency of said passage in response to accommodation of said anatomical bend of said prostatic urethra and in response to constrictive forces exerted by said enlarged prostate surrounding said prostatic urethra; and

    high friction means on said exterior surface of said body for frictionally engaging the walls of said prostatic urethra to prevent said apparatus from migrating proximally;

    whereby when said apparatus is positioned within said prostatic urethra with said first end disposed at said bladder neck and said body extending approximately to said verumontanum, said body provides support to said prostatic urethra to ensure patency thereof.

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