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RF treatment apparatus

  • US 6,663,624 B2
  • Filed: 07/30/1999
  • Issued: 12/16/2003
  • Est. Priority Date: 11/08/1993
  • Status: Expired due to Fees
First Claim
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1. A tissue ablation apparatus, comprising:

  • a tissue penetrating member with a tissue piercing distal end;

    an elongated delivery device coupled to the tissue penetrating member;

    an RF electrode with a tissue piercing distal tip and positionable in the elongated delivery device, the RF electrode having a non-deployed state when positioned in the delivery device and a deployed state, wherein in the deployed state, the RF electrode distal end exhibits a changing direction of travel as the RF electrode is advanced from the delivery device into a selected tissue site; and

    an electrode advancement member coupled to the RF electrode for advancing the RF electrode out of the elongated delivery device.

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