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US 12,636,063 B2Granted
Motion sensing electrosurgical devices
AssigneeCovidien LP
InventorJames E. Dunning
Life of this patent
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Abstract
An electrosurgical system may include an electrosurgical generator configured to generate electrosurgical energy; and an electrosurgical instrument coupled to the electrosurgical generator. The electrosurgical instrument may include a motion and/or position sensor, where the electrosurgical generator is configured to control the electrosurgical energy based on a sensor signal from the sensor.
Claims13
An electrosurgical system comprising:
- an electrosurgical generator configured to generate electrosurgical energy;
- and
- an electrosurgical instrument coupled to the electrosurgical generator, the electrosurgical instrument including a motion sensor configured to detect a speed at which the electrosurgical instrument is being moved, wherein, when the electrosurgical instrument is in contact with tissue, the electrosurgical generator is configured to control delivery of the electrosurgical energy to the electrosurgical instrument by adjusting a duty cycle of a radio-frequency cutting waveform based on the detected speed, including increasing the duty cycle for higher detected speeds and decreasing the duty cycle for lower detected speeds.
A method for controlling an electrosurgical generator, the method comprising:
- generating electrosurgical energy at an electrosurgical generator;
- grasping tissue between opposing jaw members of a bipolar forceps coupled to the electrosurgical generator;
- outputting a sensor signal from a motion sensor of the bipolar forceps indicative of motion of the bipolar forceps;
- while the tissue is grasped, detecting, based on the sensor signal, a cutting motion of the bipolar forceps;
- and
- in response to detecting the cutting motion, controlling the electrosurgical energy by switching the electrosurgical generator from a first electrosurgical mode configured to seal tissue to a second electrosurgical mode configured to cut tissue.
3 more elements
Dependencies are inferred from the claim text.