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Tissue coagulation method and device using inert gas

  • US 7,648,503 B2
  • Filed: 03/08/2006
  • Issued: 01/19/2010
  • Est. Priority Date: 03/08/2006
  • Status: Active Grant
First Claim
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1. An electrosurgical apparatus for coagulating tissue, comprising:

  • a first tube having a proximal end and a distal end, the proximal end being configured to receive pressurized ionizable gas and the distal end being configured to deliver ionized gas towards a treatment area;

    at least one electrode positioned to selectively ionize the pressurized ionizable gas prior to the pressurized ionizable gas exiting the distal end of the first tube, the electrode adapted to be operatively coupled to an electrical energy source; and

    a second tube having proximal and distal ends, the second tube being configured to selectively evacuate the ionized gas and dislodged tissue material from the treatment area, wherein the distal end of the first tube extends distally beyond the distal end of the second tube and wherein the distal end of the second tube extends distally beyond a distal end of the at least one electrode,wherein the electrosurgical apparatus is configured for use in a bipolar mode wherein the first tube is activated with a first electrical potential and the second tube is activated with a second electrical potential.

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