Electrosurgical system
AssigneeApplied Medical Resources Corporation
InventorsKevin Siazon, Ryan Pope, Vincent Rodriguez, Devon Augustus, Duy Nguyen, Patrick Elliott
Life of this patent
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Abstract
An electrosurgical system is provided and includes a bipolar electrosurgical instrument and an electrosurgical generator. The bipolar electrosurgical instrument is arranged to seal and cut tissue captured between jaws of the instrument. The jaws include particularly positioned, shaped and/or oriented electrodes to perform the sealing of tissue. The electrosurgical generator is arranged to supply RF energy through the instrument, monitor the supplied RF energy and adjust or terminate the supplied RF energy to optimally seal the tissue.
Claims19
An electrosurgical generator comprising:
- an RF amplifier configured to supply RF energy to an electrosurgical instrument coupled to the electrosurgical generator;
- and
- a controller configured to carry out a seal cycle by:
- initiating an initial voltage spike such that a voltage level of the RF energy is configured to heat a portion of tissue in contact with the electrosurgical instrument to a target temperature for desiccation over a pre-determined period of time;
- modifying the voltage level of the RF energy to maintain the target temperature for desiccation;
- monitoring a state of desiccation of the portion of tissue in contact with the electrosurgical instrument;
- and
- terminating the supply of the RF energy from the RF amplifier once the monitored state of desiccation of the portion of tissue in contact with the electrosurgical instrument has met one or more pre-determined thresholds,
- wherein the modifying of the voltage level comprises dropping the voltage level to a pre-determined minimum value and increasing the voltage level from the pre-determined minimum value at a pre-determined rate that is slower than a rate of the initial voltage spike.
Dependencies are inferred from the claim text.