Electrosurgical generator and system
AssigneeCovidien LP
InventorsARLEN K. WARD, JOE D. SARTOR, ROBERT H. WHAM
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Abstract
An electrosurgical generator includes an electrosurgical energy output configured to deliver electrosurgical energy to a bipolar end effector assembly in a conductive fluid environment for treating tissue. A controller having a processor is configured to control a waveform of the electrosurgical energy such that the waveform oscillates between a cut phase for initiating and sustaining tissue cutting, wherein the waveform includes a cut energy greater than the energy needed to create and sustain arcing, and a hemostasis phase, for desiccating/coagulating tissue, wherein the waveform includes a hemostasis energy less than the energy needed to sustain arcing.
Claims17
1-20. (canceled)
An electrosurgical generator, comprising:
- an electrosurgical energy output configured to deliver electrosurgical energy to a bipolar end effector assembly;
- and
- a controller having a hardware processor configured to control a waveform of the electrosurgical energy delivered from the output to the bipolar end effector assembly such that the waveform oscillates between a first mode and a second mode, wherein the first mode is continued for a first time interval and the second mode is continued for a second time interval, and wherein the processor is configured to determine at least one of the first time interval or the second time interval in accordance with a movement distance of a portion of the bipolar end effector assembly during the at least one of the first mode or the second mode, respectively.
An electrosurgical generator, comprising:
- an electrosurgical energy output configured to deliver electrosurgical energy to an electrosurgical end effector assembly;
- and
- a controller having a hardware processor configured to control a waveform of the electrosurgical energy delivered from the output to the electrosurgical end effector assembly based upon an impedance versus power curve such that the waveform oscillates between a first mode and a second mode different from the first mode.
Dependencies are inferred from the claim text.