Diagnostic electrode for use with magnetic resonance imaging
US5044368A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Apr 23, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved intracranial diagnostic electrode for use with magnetic resonance imaging techniques includes an electrode body and at least one metallic contact supported by the body. An electrical lead wire is attached to the contact for connecting the contact to a diagnostic instrument. At least the metallic contact is made of an alloy which includes nickel and chromium and is substantially devoid of iron. The electrode thereby provides substantially clear images of the location of each metallic contact when the electrode is used in conjunction with magnetic resonance imaging techniques. The electrode may also include radiopaque elements or markers to adapt the electrode for use with x-ray as well as magnetic resonance imaging techniques. Several embodiments are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.