Devices and methods for directed, interstitial ablation of tissue

  • US 6,802,838 B2
  • Filed: 04/22/2002
  • Issued: 10/12/2004
  • Est. Priority Date: 04/22/2002
  • Status: Active Grant
First Claim
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1. A catheter device adapted for delivering laser energy to a body tissue comprising:

  • a) an elongate hollow tube defining first and second spaced-apart ports;

    b) a flexible energy conduit adapted for connection to a laser energy source, extending through said tube and including a distal end adapted to emit laser energy to a predetermined tissue site and the distal end portion thereof defining a channel in said tube in fluid flow communication with said first and second ports respectively; and

    c) a fluid conduit for passing a fluid or creating a vacuum through said first and second ports and through said channel for cooling said distal end portion and cleaning said distal end of said energy conduit;

    wherein said first and second ports in said tube define fluid inlet and outlet ports respectively and said conduit for passing a fluid comprises a fitting defining an interior cavity in fluid flow communication with a fluid source, said tube extending through said fitting;

    whereby said inlet port in said tube is located in fluid flow communication with said cavity in said fitting and the fluid flows through said channel and exits through said outlet port.

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