Frequency based controlled electrosurgical system and method
AssigneeIntuitive Surgical Operations, Inc.
InventorsDuane W. Marion, Andrew D. Rauch, Jignesh M. Shah
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Abstract
A method is provided to control delivery of heat to biological tissue comprising: imparting an RF electrical signal to the biological tissue electrically coupled between a first electrode and the second electrode; measuring frequency content of the RF electrical signal between the first electrode and the second electrode; and adjusting the RF electrical signal based upon the measured frequency content of the RF electrical signal.
Claims28
A method to control delivery of heat to biological tissue comprising:
- imparting an RF electrical signal to the biological tissue over a circuit that includes a first electrode and a second electrode, wherein the biological tissue is electrically coupled between the first electrode and the second electrode;
- measuring frequency content of the RF electrical signal between the first electrode and the second electrode;
- and
- adjusting the RF electrical signal based upon the measured frequency content of the RF electrical signal.
An electrosurgical system to deliver heat to biological tissue comprising:
- a radio frequency (RF) electrical signal source operable to impart an RF electrical signal to the biological tissue;
- a digital sampling circuit coupled to digitally sample the RF electrical signal imparted to the biological tissue;
- frequency content logic coupled to determine frequency content of the RF electrical signal based upon digital samples of the RF electrical signal;
- and
- control logic coupled to control the RF electrical signal source based upon the determined frequency content of the RF electrical signal.
Dependencies are inferred from the claim text.