US 12,446,948 B2
Electrosurgical pencil
Jesper Schantz Simonsen, Jyderup (DK)
Assigned to Stryker European Operations Limited, Carrigtwohill (IE)
Filed by Stryker European Operations Limited, Cork (IE)
Filed on Jan. 22, 2024, as Appl. No. 18/418,395.
Application 18/418,395 is a continuation of application No. 16/093,917, granted, now 11,937,865, previously published as PCT/EP2017/057989, filed on Apr. 4, 2017.
Claims priority of application No. 16165395 (EP), filed on Apr. 14, 2016.
Prior Publication US 2024/0156514 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1402 (2013.01) [A61B 2018/00589 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2217/005 (2013.01); A61B 2218/007 (2013.01); A61B 2218/008 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An electro-surgical pencil comprising:
a housing forming an axially extending main suction passage from a proximal opening to a distal opening, wherein the housing comprises (i) a main body forming the axially extending main suction passage and the distal opening, and (ii) a switch on the main body;
a tube with an internal conduit extending between a distal extension opening and a proximal extension opening and forming an extension of the axially extending main suction passage to the proximal extension opening, the tube being configured for telescoping movement through the proximal opening of the housing;
an electrode for cutting and/or coagulating tissue, the electrode being attached to the tube and extending axially from the proximal extension opening, wherein the switch is configured to provide a signal to cause an electrosurgical radiofrequency signal to be supplied to the electrode; and
a suction tip coupled to the tube and forming a further extension of the axially extending main suction passage,
wherein, while the electrode remains in a fixed position relative to the tube, the suction tip is configured for telescoping movement along an outer surface of the tube to adjust an extent by which the suction tip covers a portion of the electrode,
wherein the suction tip is slidable along the tube to a distal position at which at least a portion of the suction tip is received in a space between an inner surface of a proximal portion of the main body and the outer surface of the tube.