Automatic control system for an electrosurgical generator
First Claim
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1. A system for controlling an output of an electrosurgical generator comprising:
- a drive circuit for generating an output, the output being responsive to a feedback signal and operatively coupled to at least one electrode of the electrosurgical generator;
at least one sensing circuit operatively coupled to the at least one electrode for generating at least one signal, the at least one signal corresponding to a value of a waveform present on the at least one electrode;
a processing circuit for receiving the at least one signal, the processing circuit including associated circuitry for determining a value of the at least one signal;
a determining circuit in communication with the processing circuit for generating an output signal, the output signal being representative of the value of the at least one signal; and
a control circuit for generating a feedback signal, the feedback signal representative of a difference between a value of the output signal and a reference value, the feedback signal operatively coupled to the drive circuit.
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Abstract
An automatic control system for an electrosurgical generator is herein disclosed. The automatic control system includes voltage and current sensing circuits, a processing circuit, an output determining circuit, and a control circuit. Samples of the voltage and current outputs are supplied to the processing circuit and the output determining circuit to generate an output signal. The output signal is compared to a reference signal to generate a feedback signal for controlling a drive circuit.
380 Citations
7 Claims
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1. A system for controlling an output of an electrosurgical generator comprising:
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a drive circuit for generating an output, the output being responsive to a feedback signal and operatively coupled to at least one electrode of the electrosurgical generator;
at least one sensing circuit operatively coupled to the at least one electrode for generating at least one signal, the at least one signal corresponding to a value of a waveform present on the at least one electrode;
a processing circuit for receiving the at least one signal, the processing circuit including associated circuitry for determining a value of the at least one signal;
a determining circuit in communication with the processing circuit for generating an output signal, the output signal being representative of the value of the at least one signal; and
a control circuit for generating a feedback signal, the feedback signal representative of a difference between a value of the output signal and a reference value, the feedback signal operatively coupled to the drive circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification