ELECTROSURGICAL DEVICE FOR NECROSIS INDUCTION

摘要

A cell necrosis apparatus includes an introducer with a distal end sufficiently sharp to penetrate tissue. An energy delivery device has a first set of RF electrodes, a second set of RF electrodes and a third RF electrode. Each of the electrodes has a tissue piercing distal end and is positional in the introducer as the introducer is advanced through tissue. The first and second sets of RF electrodes are deployable with curvature from the introducer. The third RF electrode is deployable from the introducer with less curvature than the first and second sets of RF electrodes. The second set of RF electrodes is deployable a greater distance from the introducer than the first set of RF electrodes.