Fitting of brightness in a visual prosthesis
US9078739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is a method of automatically adjusting an electrode array to the neural characteristics of an individual patient. The perceptual response to electrical neural stimulation varies from patient to patient and The response to electrical neural stimulation varies from patient to patient and the relationship between current and perceived brightness is often non-linear. It is necessary to determine this relationship to fit the prosthesis settings for each patient. It is advantageous to map the perceptual responses to stimuli. The method of mapping of the present invention is to provide a plurality of stimuli that vary in current, voltage, pulse duration, frequency, or some other dimension; measuring and recording the response to those stimuli; deriving a formula or equation describing the map from the individual points; storing the formula; and using that formula to map future stimulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.