US 11,864,815 B2
Electrosurgical device for cutting tissue
Jacob C. Baril, Norwalk, CT (US); Saumya Banerjee, Hamden, CT (US); Amy Kung, Hamden, CT (US); Christopher M. Meehan, Shelton, CT (US); Thomas A. Zammataro, North Haven, CT (US); Brian J. Creston, Shelton, CT (US); Scott J. Prior, Shelton, CT (US); Ernest A. Addi, Middletown, CT (US); Matthew A. Dinino, Newington, CT (US); and Ronald L. Green, Bethel, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Feb. 6, 2020, as Appl. No. 16/783,417.
Prior Publication US 2021/0244461 A1, Aug. 12, 2021
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01)
CPC A61B 18/14 (2013.01) [A61B 18/1402 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00178 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/126 (2013.01); A61B 2018/144 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/1467 (2013.01)] 20 Claims
OG exemplary drawing
 
16. An electrosurgical device for cutting tissue, comprising:
a body portion; and
a tool portion extending distally from the body portion, the tool portion defining a longitudinal axis, the tool portion including:
a return lead configured to electrically couple to an electrosurgical energy source, the return lead having a distal surface defining an acute angle with respect to the longitudinal axis of the tool portion and a planar surface extending from the distal surface of the return lead to a distal end of the body portion;
first and second electrical insulators extending distally from the distal surface of the return lead; and
an active lead extending through the first and second electrical insulators and configured to electrically couple to the electrosurgical energy source for cutting the tissue, the active lead extending between the first and second electrical insulators parallel to and spaced from the distal surface of the return lead.