Multiple parameter fault detection in electrosurgical instrument shields
US8460284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00892
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for detecting faults within an electrosurgical instrument having a shield and an active electrode uses multiple possible fault conditions. In one embodiment the monitoring system comprises an electrosurgical generator coupled to the electrosurgical instrument and adapted to deliver power to the active electrode of the electrosurgical instrument, monitoring circuitry coupled to the electrosurgical generator and the electrosurgical instrument, wherein the monitoring circuitry comprises an active electrode voltage sensor an active electrode current sensor and a shield current sensor. The monitoring circuitry measures at least two of the active voltage, the active or return electrode current, and the shield current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.