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US 11,141,213 B2Granted
Surgical instrument with user adaptable techniques
AssigneeCilag GmbH International
InventorsDavid C. Yates, Ashvani K. Madan, Benjamin J. Danziger, Eitan T. Wiener, Kristen G. Denzinger, Kevin L. Houser
Life of this patent
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Abstract
A method for coagulating and dissecting tissue. The method includes measuring a tissue property and delivering multiple energy modalities to the tissue based on the tissue property. The energy modalities being delivered from a generator either alone or in combination.
Claims19
A method comprising:
- delivering, by a first drive circuit, a first energy modality to an end effector of a surgical instrument interacting with tissue;
- determining, by a processor, a tissue coefficient of friction of the tissue interacting with the end effector;
- comparing, by the processor, the determined tissue coefficient of friction with a threshold value of the tissue coefficient of friction;
- and
- delivering, by a second drive circuit, a second energy modality to the end effector when the determined tissue coefficient of friction changes beyond the threshold value of the tissue coefficient of friction;
- wherein the first energy modality is different from the second energy modality.
3 more elements
A method comprising:
- delivering, by a drive circuit, a first drive signal to an end effector of a surgical instrument at an amplitude;
- measuring, by a processor, a tissue coefficient of friction of tissue engaged with the end effector;
- modulating, by the processor, delivery of the first drive signal based on the measured tissue coefficient of friction;
- and
- ceasing, by the processor, delivery of the first drive signal when a termination parameter is met.
2 more elements
A method comprising:
- calculating, by a processor, a tissue coefficient of friction of tissue engaged with an end effector of a surgical instrument;
- comparing, by the processor, the calculated tissue coefficient of friction with a coefficient of friction threshold value;
- delivering, by a radiofrequency (RF) drive circuit, RF energy to an electrode of the end effector when the calculated tissue coefficient of friction is less than the coefficient of friction threshold value;
- and
- delivering, by an ultrasonic drive circuit, ultrasonic energy to an ultrasonic blade of the end effector when the calculated tissue coefficient of friction is greater than or equal to the coefficient of friction threshold value.
2 more elements
Dependencies are inferred from the claim text.