Patent ID: 7794458
Filing Date: 2010-09-14
Classification: A61B

Abstract:
1. An ablation device, comprising: a first tubular element; a first electrode which, when in an insertion configuration, is received within the first tubular element, the first electrode being deployable from the first tubular element to anchor in a target portion of tissue at a first electrode operative position; wherein the first electrode is formed as a self-anchoring coil with a tissue penetrating tip; a second tubular element movable relative to the first tubular element to extend from the first tubular element and penetrate a target portion of tissue; a second electrode which, when in the insertion configuration, is received within the second tubular element, the second electrode being deployable from the second tubular element to anchor in the target portion of tissue at a second electrode operative position separated from the first electrode operative position, the second electrode being deployable independently of the first electrode; and an insulating sleeve received around the first electrode comprising a shell encompassing an entire diameter of the first electrode without contacting an inner diameter of the first electrode, the insulating sleeve being movable relative to the first electrode to insulate selected portions of the first electrode.