US 11,918,275 B2
Electrosurgical adaptation techniques of energy modality for combination electrosurgical instruments based on shorting or tissue impedance irregularity
Frederick E. Shelton, IV, Hillsboro, OH (US); Taylor W. Aronhalt, Loveland, OH (US); Shane R. Adams, Lebanon, OH (US); Daniel V. Boguszewski, Cincinnati, OH (US); and Nicholas J. Ross, Franklin, OH (US)
Assigned to CILAG GMBH INTERNATIONAL, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Apr. 30, 2021, as Appl. No. 17/246,095.
Prior Publication US 2022/0346854 A1, Nov. 3, 2022
Int. Cl. A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1206 (2013.01) [A61B 18/1445 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/0063 (2013.01); A61B 2018/00702 (2013.01); A61B 2018/0072 (2013.01); A61B 2018/00755 (2013.01); A61B 2018/00767 (2013.01); A61B 2018/00916 (2013.01); A61B 2018/1253 (2013.01); A61B 2018/126 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
selecting, by a control circuit through a multiplexer, an electrode in an array of segmented electrodes during a pre-energy activation cycle;
applying, by the control circuit through a radio frequency (RF) generator, a sub-therapeutic electrical signal to the selected electrode to differentiate between a shorted electrode and low impedance tissue grasped in the jaws of the end effector;
determining, by the control circuit, the selected electrode is at least temporarily shorted to another electrode in the array of segmented electrodes based on a measured electrical parameter received by the control circuit after applying the sub-therapeutic electrical signal;
blending, by control circuit through the RF generator, monopolar and bipolar RF energy to the array of segmented electrodes;
determining, by the control circuit, that the selected electrode remains at least temporarily shorted to the another electrode in the array of segmented electrodes; and
switching, by the control circuit through the multiplexer, output energy of the RF generator between monopolar and bipolar RF energy to the array of segmented electrodes while the selected electrode remains at least temporarily shorted to the another electrode in the array of segmented electrodes.