System and method for closed loop monitoring of monopolar electrosurgical apparatus
First Claim
1. An electrosurgical system comprising:
- a generator including a closed loop control system configured to generate at least one electrosurgical coagulation waveform, the closed loop control system including;
a sensor configured to sense at least one of a tissue property and an energy property and transmit a sensor signal to a gain controller, the sensor signal relating to the at least one tissue property and energy property and having an amplitude;
the gain controller configured to process the sensor signal to reduce the amplitude of the sensor signal and obtain a signal-to-noise ratio of the sensor signal within a predetermine range, the gain controller including a multiplier configured to generate a multiplied signal as a function of a gain control signal; and
a microprocessor coupled to the generator and configured to adjust the at least one electrosurgical coagulation waveform as a function of the sensor signal.
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Accused Products
Abstract
An electrosurgical system is disclosed comprising a generator configured to electrosurgical coagulation waveforms. The generator includes a closed loop control system for controlling the electrosurgical coagulation waveforms. The closed loop control system includes a sensor configured to sense a tissue property and/or an energy property and to transmit the tissue property and/or the energy property as one or more sensor signals having an amplitude. The control system also includes a gain controller configured to process the at least one sensor signal to reduce the amplitude of the sensor signals and to obtain a signal to noise ratio of the at sensor signals within a predetermine range. A microprocessor coupled to the generator and is configured to adjust the electrosurgical coagulation waveforms as a function of the sensor signals.
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Citations
20 Claims
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1. An electrosurgical system comprising:
a generator including a closed loop control system configured to generate at least one electrosurgical coagulation waveform, the closed loop control system including; a sensor configured to sense at least one of a tissue property and an energy property and transmit a sensor signal to a gain controller, the sensor signal relating to the at least one tissue property and energy property and having an amplitude; the gain controller configured to process the sensor signal to reduce the amplitude of the sensor signal and obtain a signal-to-noise ratio of the sensor signal within a predetermine range, the gain controller including a multiplier configured to generate a multiplied signal as a function of a gain control signal; and a microprocessor coupled to the generator and configured to adjust the at least one electrosurgical coagulation waveform as a function of the sensor signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A closed loop control system for controlling at least one electrosurgical coagulation waveform, the closed loop control system including:
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a sensor configured to sense at least one of a tissue property and an energy property and transmit a sensor signal to a gain controller, the sensor signal relating to the at least one tissue property and energy property and having an amplitude; the gain controller configured to process the sensor signal to reduce the amplitude of the sensor signal and obtain a signal-to-noise ratio of the sensor signal within a predetermine range, the gain controller including a multiplier configured to generate a multiplied signal as a function of a gain control signal; and a microprocessor coupled to the generator and configured to adjust the at least one electrosurgical coagulation waveform as a function of the sensor signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification