Artifact detection electrode
US7310546B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 26, 2006 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7217
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraoperative neurophysiological monitoring system includes an adaptive threshold detection circuit adapted for use in monitoring with a plurality of electrodes placed in muscles which are enervated by a selected nerve and muscles not enervated by the nerve. Nerve monitoring controller algorithms permit the rapid and reliable discrimination between non-repetitive electromyographic (EMG) events and repetitive EMG events, thus allowing the surgeon to evaluate whether nerve fatigue is rendering the monitoring results less reliable and whether anesthesia is wearing off. An artifact detection electrode provides a reliably detectable impedance imbalance between the electrode leads and antenna-like qualities for enhanced detection of current and electromagnetic artifacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.