US 12,082,869 B2
Electrode for an electrosurgical pencil and a method of making an electrode
Jesper Schantz Simonsen, Jyderup (DK)
Assigned to Stryker European Operations Limited, Cork (IE)
Appl. No. 16/649,618
Filed by Stryker European Operations Limited, County Cork (IE)
PCT Filed Oct. 19, 2018, PCT No. PCT/EP2018/077430
§ 371(c)(1), (2) Date Mar. 20, 2020,
PCT Pub. No. WO2019/072819, PCT Pub. Date Apr. 18, 2019.
Claims priority of application No. 17195450 (EP), filed on Oct. 9, 2017.
Prior Publication US 2020/0268437 A1, Aug. 27, 2020
Int. Cl. A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1402 (2013.01) [A61B 2017/00526 (2013.01); A61B 2018/00107 (2013.01); A61B 2018/0013 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/1412 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrode for an electrosurgical pencil, the electrode comprising:
an elongated body made of a conductive material and extending in an axial direction from a proximal end to a distal end,
wherein the proximal end is configured for engaging the electrosurgical pencil,
wherein the distal end forms a blade configured for cutting or coagulation of tissue by electrosurgical energy received from the electrosurgical pencil,
wherein the blade is defined by two main surface portions on opposite sides of an intermediate plane and joined by an edge extending through the intermediate plane,
wherein the edge comprises a smooth-part, and
wherein the main surface portions have a first surface roughness,
wherein the smooth-part of the edge has a second surface roughness being lower than the first surface roughness,
wherein at least the main surface portions are covered by a surface coating,
wherein the smooth-part of the edge is un-coated by the surface coating, and
wherein the first surface roughness is in a range of 2.0 Ra to 4.0 Ra, and the second surface roughness is less than 1.0 Ra.