Multi-electrode integration in a visual prosthesis
US8620442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Dec 31, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0543
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is a method of stimulating visual neurons to create the perception of light. A visual prosthesis electrically stimulating the retina with implanted electrodes exhibits interaction between electrodes stimulated closely together in both space and time. The method of the present invention includes determining a minimum distance at which spatiotemporal interactions occur, determining a minimum time at which spatiotemporal interactions occur, and avoiding stimulation of electrodes within the minimum distance during the minimum time. The minimum are ideally established for each individual patient. Alternatively, approximate minimums have been established by the applicants at 2 mm and 1.8 μsec.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.