Ear canal electrode for auditory testing
US4592370A · kind A · utility
20Cited by
19References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1982 |
| Grant date | Jun 3, 1986 |
| Priority date | — |
| Expiry date | Nov 26, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0217
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A non-invasive, external ear canal electrode and connector therefor useful for transmitting sound stimulus to an ear canal and for conducting electrical signals picked up from the ear canal epidermal surface. The electrode comprises an electro-conductive tube having resilient plastic foam elements attached to the end to be placed in the ear. One foam element is electro-conductive and impregnated with an electrolytically conductive medium, and the cells of the other sound absorbing elements are filled with air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.