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Benign prostatic hyperplasia treatment catheter with urethral cooling

  • US 5,575,811 A
  • Filed: 05/23/1995
  • Issued: 11/19/1996
  • Est. Priority Date: 07/08/1993
  • Status: Expired due to Term
First Claim
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1. A method for treating tissue adjacent to a body lumen, the method comprising:

  • inserting a catheter having a catheter shaft into the body lumen;

    delivering heat from the catheter to the tissue adjacent to the body lumen;

    defining a chamber between the body lumen and the catheter shaft; and

    supplying a fluid to the chamber between the body lumen and the catheter shaft such that the fluid comes in direct contact with the body lumen to cool the body lumen.

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