Resposable electrode
US5531743A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Nov 18, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0813
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument for use in electrosurgical procedures wherein coatings of two different materials are disposed on external surfaces. The first of these materials is selected to provide the principal insulating qualities desired, whereas the second is included to provide an indication of deterioration. The relative characteristics between the two coatings is selected so that when the visual appearance of the second coating progresses to a predetermined level, the insulating qualities of the first coating will still be satisfactory but approaching a point when the instrument has reached the end of its useful life, thus providing a ready and passive visual indication of the time when the instrument should be replaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.