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RF treatment apparatus

  • US 20050033279A1
  • Filed: 12/15/2003
  • Published: 02/10/2005
  • Est. Priority Date: 11/08/1993
  • Status: Abandoned Application
First Claim
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1. An RF treatment apparatus, comprising:

  • a catheter including a catheter lumen;

    a removable needle electrode positioned in the catheter lumen in a fixed relationship to the catheter, the treatment needle electrode including a needle lumen and a needle electrode distal end;

    a return electrode;

    a removable introducer slidably positioned in the treatment needle lumen, the introducer including an introducer distal end;

    a first sensor positioned on a surface of the needle electrode or the introducer;

    an RF power source coupled to the treatment needle electrode; and

    resources associated with the first thermal sensor, return electrode and the RF power source for maintaining a selected power at the electrode independent of changes in current or voltage.

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