Electrosurgical working end for transecting and sealing tissue
US6533784B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 24, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1475
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical working end and method for transecting an anatomic structure along a targeted line and for creating a thermal welds along either of both transected tissue margins, for example for use in a partial lung resection procedure. The working end provides elongate curved or linear guide-track members that can be positioned on opposing sides of the targeted anatomic structure. The working end carries a slidable member with interior channels that receive the guide-track members. The extension member can be moved from a proximal position to an advanced distal position by advancing over the guide-track members. As the extension member advances over the guide-track members (i) the tracks compress the tissue just ahead of the advancing extension member to allow the laterally-outward portion of the extension member to ramp over the tissue, (ii) while contemporaneously a cutting element at the distal end of the extension member transects the tissue. By this means, the transected tissue margins are captured under high compression by working end components on either side of the tissue margin. The working end carries a bi-polar electrode arrangement that engages the just-transected…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.