Electrosurgical clamping device with insulation limited bipolar electrode
USH1745H · kind H · statutory invention registration
Inventor
Key dates
| Filing date | — |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | — |
Classification
- Technology area (CPC —)General
Abstract
An electrosurgical hemostatic instrument is provided in which the coagulation status of tissue engaged by two elements delivering an electrosurgical energy to tissue may be observed, and in which damage from thermal spread may be minimized. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. In this device, the outer conductive surface of the tissue engaging elements is substantially covered by an insulative coating which confines current flow to the clamped tissue and limited regions around the tissue engaging elements. Coagulation may be observed by watching the region around the tissue engaging elements. Coagulation around the tissue engaging elements may be controlled by selectively coating the outside of the elements with insulation to control current flow from the surface of the engaging elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.