公开(公告)号：US20230056328A1

公开(公告)日：2023-02-23

申请号：US17891811

申请日：2022-08-19

Applicant: Intuitive Surgical Operations, Inc.

Inventor： Forrest R. Lundstrom ,  Rajeshwari Srinivasan

IPC: A61B18/12 ,  A61B18/14

Abstract: An electrosurgical system includes an RF output stage configured to impart RF power between first and second electrodes; measurement circuitry measures current and voltage imparted between the first and second electrodes; a processing circuit calculates power and impedance, based upon the measured current and the measured voltage; the processing circuitry uses a proportional-integral-derivative control loop to control RF power imparted between the electrodes, based upon a selected one of the measured current, the measured voltage, calculated power, and the calculated impedance.