Patent ID: 6241724
Filing Date: 2001-06-05
Classification: A61B,A61N

Abstract:
A system for ablating tissue in a body, comprising:a guide body having a distal end,a multiple electrode array carried on the distal end of the guide body comprisinga support body having an axis,at least first and second electrodes on the support body, the electrodes being circumferentially spaced from each other about the body axis, said body being adapted to be oriented generally parallel to the surface of said tissue when at least one of said electrodes is in contact with said tissue and at least one of said electrodes is in contact with a blood pool adjacent to said tissue,an insulator on the support body for electrically isolating the separated electrodes from each other,first and second wires attached to the separated electrodes for conveying ablating energy independently to the separated electrodes, anda controller electrically coupled to the first and second wires for conveying ablating energy to the one of the electrodes which is in contact with the tissue while not conveying energy to the other of the electrodes which is in contact with said blood pool.