Needle having multiple electrodes
US7283866B2 · kind B2 · utility
6Cited by
22References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2005 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | May 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments of the invention generally relate to needles having more than one electrode and which are particularly suited for use in electromyography. One embodiment relates to a tripolar needle having three concentric electrodes. The tripolar needle is formed by providing a needle blank having first and second concentric electrodes and forming a third concentric electrode around the needle blank. The tripolar needle has an outer diameter which is substantially constant along the shaft of the needle, except at the tip, where the needle is sharpened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.