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Thin layer ablation apparatus

  • US 5,827,273 A
  • Filed: 04/05/1996
  • Issued: 10/27/1998
  • Est. Priority Date: 06/24/1994
  • Status: Expired due to Fees
First Claim
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1. An apparatus for ablating a surface in an organ of a body, the apparatus comprising:

  • an introducer having a distal portion, a fluid lumen extending through the introducer, and an opening formed at the distal portion and communicating with the fluid lumen;

    a plurality of RF electrodes carried by the distal portion of the introducer;

    a fluid permeable expandable member expandable to conform to a surface of an organ when positioned adjacent to the surface, the expandable member including a foam portion, at least a portion of the expandable member surrounding the electrodes;

    an electrical connector device connecting the plurality of RF electrodes to an RF energy source;

    a source of a conductive fluid fluidly coupled to the fluid lumen to permit flow of conductive fluid through the expandable member to cause fluid to create a conductive path between the electrodes and an inner surface of an organ when the distal portion is positioned adjacent the inner surface.

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