US 11,051,873 B2
Surgical system with user adaptable techniques employing multiple energy modalities based on tissue parameters
Eitan T. Wiener, Cincinnati, OH (US); Benjamin J. Danziger, Cincinnati, OH (US); David C. Yates, West Chester, OH (US); Kevin L. Houser, Springboro, OH (US); Ryan M. Asher, Cincinnati, OH (US); Frederick E. Shelton, IV, Hillsboro, OH (US); Jeffrey D. Messerly, Cincinnati, OH (US); Geoffrey S. Strobl, Williamsburg, OH (US); and Kristen G. Denzinger, Cincinnati, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Ethicon Endo-Surgery, LLC, Guaynabo, PR (US)
Filed on Jun. 9, 2016, as Appl. No. 15/177,449.
Claims priority of provisional application 62/186,984, filed on Jun. 30, 2015.
Claims priority of provisional application 62/235,260, filed on Sep. 30, 2015.
Claims priority of provisional application 62/235,368, filed on Sep. 30, 2015.
Claims priority of provisional application 62/235,466, filed on Sep. 30, 2015.
Claims priority of provisional application 62/279,635, filed on Jan. 15, 2016.
Claims priority of provisional application 62/330,669, filed on May 2, 2016.
Prior Publication US 2017/0000553 A1, Jan. 5, 2017
Int. Cl. A61B 18/14 (2006.01); A61B 18/12 (2006.01); A61B 17/32 (2006.01); A61B 18/00 (2006.01); A61B 17/00 (2006.01)
CPC A61B 18/1445 (2013.01) [A61B 18/1233 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00026 (2013.01); A61B 2017/320094 (2017.08); A61B 2017/320095 (2017.08); A61B 2018/00589 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00708 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00886 (2013.01); A61B 2018/00994 (2013.01); A61B 2018/1452 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for distinguishing a short circuit from a low impedance measurement in tissue in a surgical system configured to apply radio frequency energy and ultrasonic energy to a target surgical site, the method comprising:
delivering, by a radio frequency (RF) drive circuit, RF energy to an electrode of a surgical instrument, wherein the electrode is in contact with tissue at the target surgical site;
receiving a low impedance measurement from the target surgical site consistent with the short circuit;
in response to the low impedance measurement, transitioning from delivering, by the RF drive circuit, the RF energy to delivering, by an ultrasonic drive circuit, ultrasonic energy to an ultrasonic blade of the surgical instrument;
delivering, by the ultrasonic drive circuit, an exploratory ultrasonic pulse to the ultrasonic blade;
measuring, by a processor, in the tissue at the target surgical site, an acoustic response to the exploratory ultrasonic pulse;
determining, by the processor, that the target surgical site is consistent with a low impedance area and not the short circuit by determining that the acoustic response is not consistent with the exploratory ultrasonic pulse contacting metal or other material that would cause the short circuit; and
based on the determination, delivering, by the ultrasonic drive circuit, ultrasonic energy to the ultrasonic blade to cut the tissue.