Patent ID: 9078664
Filing Date: 2015-07-14
Classification: A61B

Abstract:
1. A surgical instrument comprising: a hollow tubular member having a closed distal working end, a proximal end and an outer surface, with an opening in a side wall at or adjacent the distal working end; a first electrical insulation layer disposed on at least part of the outer surface of the hollow tubular member; a first electrode disposed on an outer surface of the first electrical insulation layer, the first electrode being electrically isolated from the hollow tubular member by the first electrical insulation layer; and a second electrode disposed on the outer surface of the first electrical insulation layer, the second electrode being electrically isolated from the hollow tubular member by the first electrical insulation layer, wherein (i) the first and second electrodes are electrically isolated from each other, (ii) the first electrode includes a first active segment, (iii) the second electrode includes a second active segment, and (iv) the first and second active segments are disposed respectively on opposite sides of the opening in the side wall of the hollow tubular member within about 3.0 mm of the opening in the side wall of the hollow tubular member so that the opening is located between the first and second active segments and a line that is perpendicular to and passes through a longitudinal axis of the hollow tubular member intersects the first and second active segments on the opposite sides of the opening.