Surgical tool having electrocautery energy supply conductor with inhibited current leakage
US7083615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Aug 9, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/305
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides improved electrosurgical instruments and systems having electrocautery energy supply conductors that provide inhibited current leakage and methods of performing a robotically controlled minimally invasive surgical procedure while preventing unintended capacitive coupling. A surgical instrument generally comprises an elongate shaft having a proximal end and a distal end and defining an internal longitudinally extending passage. An electrocautery end effector is coupled to or disposed at the distal end of the shaft. An interface or tool base is coupled to or disposed at the proximal end of the shaft and removably connectable to the robotic surgical system. Typically, an independent electrical conductor extends from the interface to the end effector to transmit electrical energy to tissue engaged by the end effector. A sealed insulation tube extends within the passage and over the conductor. A separation is maintained between the sealed insulation tube and the conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.