Method and apparatus for predicting and controlling the percepts induced by a visual prosthesis
US8554327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2011 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Dec 5, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Here we present the first model that quantitatively predicts the apparent spatial position and shape of percepts elicited by retinal electrical stimulation in humans based on the known anatomy of the retina. This model successfully predicts both the shape of percepts elicited by single electrode stimulation and the shape and relative positions of percepts elicited by multiple electrode stimulation. Model fits to behavioral data show that sensitivity to electrical stimulation is not confined to the axon initial segment, but does fall off rapidly with the distance between stimulation and the initial segment. Using the model, it is possible to compensate, preferably with a look up table, to match percepts to a desired image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.