Technique for design, and placement, of a subdermal Ag—Ag/Cl biopotential electrode
US7643861B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 17, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Feb 15, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0215
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A chronic subdermal silver-silver/chloride (Ag—Ag/Cl) electrode for the recording of biopotentials is disclosed. The electrode is comprised of an Ag—Ag/Cl distal end that is placed subdermally by various methods. The recording electrode is made of solid, multi-stranded or a ball of pure silver and the whole length of the electrode is insulated except for the distal end which is used for voltage recordation. The electrode can be placed subdermally by an introducer apparatus such as hypodermic or sewing needle, a split-cannula, a staple, or a suture. Once placed, the introducer apparatus can be removed leaving the recording wire/element in place. The recording electrode can be placed at any location on the body to record the local biopotential (EEG, EOG, EMG, EKG, etc). It can be left in place for hours, days, or weeks, as it will record without any further adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.