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Systems and methods using a porous electrode for ablating and visualizing interior tissue regions

  • US 5,722,403 A
  • Filed: 10/28/1996
  • Issued: 03/03/1998
  • Est. Priority Date: 10/28/1996
  • Status: Expired due to Term
First Claim
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1. A porous electrode assembly comprisinga wall having a surface capable of contacting tissue and peripherally surrounding an interior area,a lumen to convey a medium containing ions into the interior area,an electrically conductive element coupling the medium within the interior area to a source of electrical energy,at least a portion of the wall comprising a porous material sized to pass ions contained in the medium to thereby enable ionic transport of electrical energy through the porous material to tissue contacting the wall,an imaging element in the interior area coupled to a source of visualizing energy for visualizing tissue, andat least a portion of the wall also being generally transparent to the visualizing energy.

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