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Electrode for radiofrequency tissue ablation

  • US 20060122593A1
  • Filed: 04/22/2004
  • Published: 06/08/2006
  • Est. Priority Date: 04/24/2003
  • Status: Abandoned Application
First Claim
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1. An electrode for an electro-surgical operation device, comprising:

  • a hollow electrode formed in a hollow tube shape extending from a closed tip;

    a first non-insulation area formed to a predetermined length from the closed tip;

    a first insulation area formed on an outside surface of the hollow electrode beginning at the predetermined length from the closed tip;

    a refrigerant tube, having a smaller diameter than a diameter of the hollow electrode, inserted into the hollow electrode, the refrigerant tube configured to supply refrigerants into the hollow electrode resulting to cool a living tissue in contact with the closed tip and/or the hollow electrode, and further configured to externally discharge heat-exchanged refrigerants from the living tissue through a gap between the refrigerant tube and the hollow electrode;

    at least one first hole formed on the outside surface of the first non-insulation area;

    the first hole operable to externally discharge a portion of the refrigerants supplied through the refrigerant tube into the living tissue in contact with the closed tip and/or the hollow electrode; and

    a flow control mechanism formed on the outside surface of the first non-insulation area, and operable to act as a discharge resistance to the refrigerants discharged from the first hole, so as to control a flow of the refrigerants.

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