公开(公告)号：US20210093369A1

公开(公告)日：2021-04-01

申请号：US16956492

申请日：2018-12-19

申请人： Intuitive Surgical Operations, Inc.

发明人： Jignesh M. Shah ,  Jason W Hemphill ,  Forrest R. Lundstrom ,  Duane W. Marion

IPC分类号： A61B18/12 ,  A61B18/14

摘要： A method is provided to seal and cut biological tissue. An alternating current (AC) scaling signal is imparted between a set of sealing electrodes. An AC cutting signal is imparted between a set of cutting electrodes in response to a biological tissue impedance between the sealing electrodes reaching a first impedance threshold value. The AC scaling signal is halted at an end of a time interval, beginning while the AC cutting signal is imparted between the cutting electrodes, in response to impedance of the biological tissue disposed between the set of sealing electrodes reaching a second impedance threshold value.