CPC A61B 18/1402 (2013.01) [A61B 18/1206 (2013.01); A61B 18/14 (2013.01); A61B 18/148 (2013.01); A61B 17/32002 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00136 (2013.01); A61B 2018/00142 (2013.01); A61B 2018/00178 (2013.01); A61B 2018/00202 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/00916 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1467 (2013.01); A61B 2018/1497 (2013.01); A61B 2218/007 (2013.01)] | 20 Claims |
1. An end effector for an electrosurgical instrument, comprising:
an active electrode received by an insulating material, the active electrode comprising a primary suction aperture which provides access to a primary fluid channel extending from the active electrode, through the insulating material, to a lumen, the lumen being arranged to carry fluid from a surgical site when in use;
at least one additional fluid channel providing alternative access to the primary fluid channel from the active electrode, the at least one additional fluid channel bypassing the primary suction aperture; and
a retainer to hold the active electrode in place, the retainer including recesses to form part of the at least one additional fluid channel.
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