Surgical instrument
US7896877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2005 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1412
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for morcellating tissue within a body cavity of a patient comprises a stationary tube having a distal end portion, and a bipolar electrosurgical electrode assembly located at the distal end of the tube. The electrosurgical electrode assembly comprises first and second electrodes separated by an insulation member, the bipolar electrosurgical electrode assembly extending around the circumference of the distal edge of the tube. When an electrosurgical cutting voltage is applied to the electrode assembly, and relative movement is initiated between the tube and the tissue, a core of severed tissue is formed within the tube such that it can be removed from the body cavity of the patient. A tissue-pulling device such as a jaw assembly can be employed to pull tissue against the distal end of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.