US 12,295,639 B2
Estimating state of ultrasonic end effector and control system therefor
Cameron R. Nott, Fairfield, OH (US); Foster B. Stulen, Johns Island, SC (US); Fergus P. Quigley, Mason, OH (US); John E. Brady, Cincinnati, OH (US); Gregory A. Trees, Loveland, OH (US); Amrita Singh Sawhney, Pittsburgh, PA (US); Rafael J. Ruiz Ortiz, Mason, OH (US); Patrick J. Scoggins, Loveland, OH (US); Kristen G. Denzinger, Cincinnati, OH (US); Craig N. Faller, Batavia, OH (US); Madeleine C. Jayme, Cincinnati, OH (US); Alexander R. Cuti, Pittsburgh, PA (US); Matthew S. Schneider, Blue Ash, OH (US); Chad P. Boudreaux, Cincinnati, OH (US); Brian D. Black, Loveland, OH (US); Maxwell T. Rockman, Cincinnati, OH (US); Gregory D. Bishop, Hamilton, OH (US); Frederick E. Shelton, IV, Hillsboro, OH (US); and David C. Yates, Morrow, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Apr. 26, 2024, as Appl. No. 18/647,890.
Application 18/647,890 is a continuation of application No. 17/962,901, filed on Oct. 10, 2022, granted, now 12,042,207.
Application 17/962,901 is a continuation of application No. 16/115,214, filed on Aug. 28, 2018, granted, now 11,464,559, issued on Oct. 11, 2022.
Claims priority of provisional application 62/721,999, filed on Aug. 23, 2018.
Claims priority of provisional application 62/721,994, filed on Aug. 23, 2018.
Claims priority of provisional application 62/721,995, filed on Aug. 23, 2018.
Claims priority of provisional application 62/721,996, filed on Aug. 23, 2018.
Claims priority of provisional application 62/721,998, filed on Aug. 23, 2018.
Claims priority of provisional application 62/692,747, filed on Jun. 30, 2018.
Claims priority of provisional application 62/692,748, filed on Jun. 30, 2018.
Claims priority of provisional application 62/692,768, filed on Jun. 30, 2018.
Claims priority of provisional application 62/650,882, filed on Mar. 30, 2018.
Claims priority of provisional application 62/650,887, filed on Mar. 30, 2018.
Claims priority of provisional application 62/650,877, filed on Mar. 30, 2018.
Claims priority of provisional application 62/650,898, filed on Mar. 30, 2018.
Claims priority of provisional application 62/640,415, filed on Mar. 8, 2018.
Claims priority of provisional application 62/640,417, filed on Mar. 8, 2018.
Claims priority of provisional application 62/611,339, filed on Dec. 28, 2017.
Claims priority of provisional application 62/611,341, filed on Dec. 28, 2017.
Claims priority of provisional application 62/611,340, filed on Dec. 28, 2017.
Prior Publication US 2024/0358428 A1, Oct. 31, 2024
Int. Cl. A61B 18/12 (2006.01); A61B 8/00 (2006.01); A61B 17/32 (2006.01); A61B 18/14 (2006.01); A61B 34/30 (2016.01); A61B 90/00 (2016.01); G06F 1/02 (2006.01); A61B 17/00 (2006.01); A61B 17/072 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1206 (2013.01) [A61B 8/4483 (2013.01); A61B 17/320068 (2013.01); A61B 17/320092 (2013.01); A61B 18/12 (2013.01); A61B 18/14 (2013.01); A61B 34/30 (2016.02); A61B 90/37 (2016.02); G06F 1/022 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00022 (2013.01); A61B 2017/00026 (2013.01); A61B 2017/0003 (2013.01); A61B 2017/00075 (2013.01); A61B 2017/00084 (2013.01); A61B 2017/00106 (2013.01); A61B 2017/00115 (2013.01); A61B 2017/00199 (2013.01); A61B 2017/00221 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00464 (2013.01); A61B 2017/07285 (2013.01); A61B 2018/00994 (2013.01); A61B 2090/064 (2016.02); A61B 2090/066 (2016.02); A61B 2090/0809 (2016.02); A61B 2090/0811 (2016.02); A61B 2217/005 (2013.01); A61B 2217/007 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A surgical system comprising:
an ultrasonic device comprising a jaw clamp and an electromechanical ultrasonic system defined by a predetermined resonant frequency,
wherein the electromechanical ultrasonic system comprises an ultrasonic transducer coupled to an ultrasonic blade via an ultrasonic waveguide;
a surgical hub system comprising a communication circuit, wherein the surgical hub system is in communication with the ultrasonic device;
a generator configured to supply power to the ultrasonic transducer, wherein the generator comprises a control circuit to:
cause a drive circuit to apply a drive signal to the ultrasonic transducer, wherein the drive signal is defined by a magnitude and a frequency;
sweep the frequency of the drive signal from below the predetermined resonant frequency to above the predetermined resonant frequency;
measure and record impedance circle variables Re and Xe, and admittance circle variables Ge and Be;
compare the measured impedance circle variables Re and Xe and the measured admittance circle variables Ge and Be to reference impedance circle variables Rref and Xref, and reference admittance circle variables Gref and Bref, respectively; and
determine a state or condition of an end effector of the ultrasonic device based on the result of the comparison.