Surgical instrument and method
US5190541A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1990 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Oct 17, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00666
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument useful for laparoscopic surgery comprising an insulated shaft, a control means and a connection to an electrosurgical radiofrequency power source, its distal end being of general J-hook form having a tissue-engaging ledge, and the shaft supporting a tissue-engaging clamping or cutting member movable toward the ledge in response to the control means so that an artery or other tissue in the pocket of the J-hook can be clamped or cut while radiofrequency current is applied. Instrument constructions disclosed incorporate one or two clamping members and a cutting member arranged such that with actuation, the clamping member(s) engages the ledge before the cutting member, and, by selective actuation of the electrosurgical power source, coagulation current can be applied while clamping an artery or other tissue against the ledge to stop flow of blood, and by further actuation of the control and suitable current to the cutting member, the artery or tissue may be cut. Selector means enable movement of one and prevent movement of one of the members during actuation; bipolar or monopolar energization is employed; the relatively long leg of the J-member has portals. Commu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.