CONTROL SYSTEM FOR AN ULTRASONIC SURGICAL HANDPIECE
A control system for an ultrasonic surgical device has a console operatively connected to a power source and configured for detachable connection to the ultrasonic surgical device. A control circuit of the console is configured to regulate an operating signal to correspond to the operating characteristics of the ultrasonic surgical handpiece in response to a loading signal. An operator input of the console operatively connects to the control circuit to provide a control signal.
1 .- 23 . (canceled)
24 . A method for operating an ultrasonic surgical device using a console comprising:
generating a generating signal at a drive frequency with a control circuit of the console, wherein the generating signal is based on an operator input;
generating a drive signal having a drive voltage and a drive current with the control circuit in response to the generating signal;
comparing the drive voltage and the drive current with a phase comparator of the control circuit;
generating a phase adjustment with the phase comparator based on a comparison the drive voltage and of the drive current;
generating an operating signal in response to the phase adjustment to operate the ultrasonic surgical device.
25 . The method of claim 24 , further comprising:
generating a loading signal with the device loading circuit;
comparing the drive current to the loading signal with another phase comparator of the control circuit of the console;
generating a frequency adjustment signal with the another phase comparator based on the comparison of the drive current and the loading signal; and
updating the generating signal at an adjusted drive frequency with the drive signal generator in response to the frequency adjustment signal.
26 . The method of claim 25 , further comprising:
automatically adjusting the operating signal based on the updated generating signal.
27 . The method of claim 25 , further comprising:
updating the operating signal in real time during operation of the ultrasonic surgical device based on the updated generating signal.
28 . The method of claim 24 , wherein the operating signal is resonance frequency of the device loading circuit.
29 . The method of claim 24 , further comprising:
providing the ultrasonic surgical device with an ultrasonic tip, wherein the ultrasonic surgical device comprises a connection assembly and an ultrasonic transducer assembly.
30 . The method of claim 24 , further comprising:
causing ultrasonic motion with an ultrasonic tip, wherein the ultrasonic surgical device comprises a connection assembly and an ultrasonic transducer assembly.
31 . The method of claim 24 , further comprising:
connecting the console to a power source, wherein the console is configured for detachable connection to the ultrasonic surgical device.
32 . The method of claim 24 , wherein the operating signal corresponds to the operating characteristics of the ultrasonic surgical device in response to a loading signal from the ultrasonic surgical device.
33 . The method of claim 32 , wherein the console includes a feedback loop to monitor the loading signal and update the operating signal in real time during operation of the ultrasonic surgical device.
34 . A method for operating an ultrasonic surgical device using a console comprising:
generating a generating signal at a drive frequency with a control circuit of the console, wherein the generating signal is based on an operator input;
generating a drive signal having a loading signal and a drive current with the control circuit in response to the generating signal;
comparing the loading signal and the drive current with a phase comparator of the control circuit;
generating a phase adjustment with the phase comparator based on a comparison the loading signal and the drive current;
generating an operating signal in response to the phase adjustment to operate the ultrasonic surgical device.
35 . The method of claim 34 , further comprising:
comparing the drive current to the loading signal with another phase comparator of the control circuit of the console;
generating a frequency adjustment signal with the another phase comparator based on the comparison of the drive current and the loading signal; and
updating the generating signal at an adjusted drive frequency with the drive signal generator in response to the frequency adjustment signal.
36 . The method of claim 35 , further comprising:
automatically adjusting the operating signal based on the updated generating signal.
37 . The method of claim 35 , further comprising:
updating the operating signal in real time during operation of the ultrasonic surgical device based on the updated generating signal.
38 . The method of claim 34 , wherein the operating signal is resonance frequency of the device loading circuit.
39 . The method of claim 34 , further comprising:
providing the ultrasonic surgical device with an ultrasonic tip, wherein the ultrasonic surgical device comprises a connection assembly and an ultrasonic transducer assembly.
40 . The method of claim 34 , further comprising:
causing ultrasonic motion with an ultrasonic tip, wherein the ultrasonic surgical device comprises a connection assembly and an ultrasonic transducer assembly.
41 . The method of claim 34 , further comprising:
connecting the console to a power source, wherein the console is configured for detachable connection to the ultrasonic surgical device.
42 . The method of claim 34 , wherein the operating signal corresponds to the operating characteristics of the ultrasonic surgical device in response to a loading signal from the ultrasonic surgical device.
43 . The method of claim 42 , wherein the console includes a feedback loop to monitor the loading signal and update the operating signal in real time during operation of the ultrasonic surgical device.