公开(公告)号：US20240024017A1

公开(公告)日：2024-01-25

申请号：US18213086

申请日：2023-06-22

Applicant: GYRUS ACMI, INC. D/B/A OLYMPUS SURGICAL TECHNOLOGIES AMERICA

Inventor： Kester Julian Batchelor ,  Anh Tri La ,  Andreia Chagas Munderloh

IPC: A61B18/12 ,  A61B18/14 ,  A61B18/00

CPC classification number: A61B18/1206 ,  A61B18/1442 ,  A61B18/1445 ,  A61B18/00 ,  A61B18/1233 ,  A61B18/14 ,  A61B2018/00755 ,  A61B2018/00928 ,  A61B2018/00702 ,  A61B2018/00767 ,  A61B2018/0075 ,  A61B2017/00017

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.