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 |
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.
|