High-frequency treatment tool
US6273887A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Jan 21, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1467
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A high-frequency treatment tool includes an insertion portion which can be inserted into a body, a pair of gripping portions arranged at a distal end portion of the insertion portion and having gripping surfaces for gripping vital tissue, a driving mechanism for opening/closing the gripping portions between closing positions where the gripping portions abut against each other and open positions where the gripping portions are separated from each other, electrode portions formed on the gripping surfaces of the gripping portions, to which a high-frequency current is flowed to coagulate/incise the vital tissue gripped by the gripping portions, and a short circuit prevention portion for preventing a short circuit between the electrode portions of the gripping portions when the gripping portions are placed at least at the closing positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.