公开(公告)号：US11701165B2

公开(公告)日：2023-07-18

申请号：US16616711

申请日：2018-05-31

申请人： Intuitive Surgical Operations, Inc.

发明人： Duane W. Marion ,  Thomas G. Cooper ,  Eric J. Earnst ,  Jason W. Hemphill ,  Alan E. Loh

IPC分类号： A61B18/12 ,  A61B18/16 ,  A61B18/00

CPC分类号： A61B18/1233 ,  A61B18/16 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00845 ,  A61B2018/00869 ,  A61B2018/00875 ,  A61B2018/00892 ,  A61B2018/00904 ,  A61B2018/1286 ,  A61B2018/167

摘要： An apparatus is provided to detect electrical contact between anatomical tissue and a shield conductor: a transformer; an alternating current (AC) reference frequency signal generator to inject a reference frequency signal to a primary winding of the transformer; a reactive impedance coupled in parallel with a secondary winding of the transformer between a first node and a second node; and a phase match detector circuit to detect a phase match between the reference frequency signal and a reflected reference frequency signal that is reflected from the secondary winding to the primary winding.

公开(公告)号：US20210145504A1

公开(公告)日：2021-05-20

申请号：US16616711

申请日：2018-05-31

申请人： Intuitive Surgical Operations, Inc.

发明人： Duane W. Marion ,  Thomas G. Cooper ,  Eric J. Earnst ,  Jason W. Hemphill ,  Alan E. Loh

IPC分类号： A61B18/12 ,  A61B18/16

摘要： An apparatus is provided to detect electrical contact between anatomical tissue and a shield conductor: a transformer; an alternating current (AC) reference frequency signal generator to inject a reference frequency signal to a primary winding of the transformer; a reactive impedance coupled in parallel with a secondary winding of the transformer between a first node and a second node; and a phase match detector circuit to detect a phase match between the reference frequency signal and a reflected reference frequency signal that is reflected from the secondary winding to the primary winding.