Method of fabricating flexible artificial retina devices
US8530265B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Oct 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Fabrication methods for a flexible device for retina prosthesis are described. Layered structures including an array of pixel units may be formed over a substrate. Each pixel unit may comprise a processing circuitry, a micro electrode and a photo sensor. A first set of biocompatible layers may be formed over the layered structures. The substrate may be thinned down to a controlled thickness of the substrate to allow bending of the substrate to the curvature of a retina. A second set of biocompatible layers may be formed over the thinned substrate. The second set of biocompatible layers may be in contact with the first set of biocompatible layers to form a biocompatible seal wrapping around the device to allow long-term contact of the device with retina tissues. Micro electrodes of the pixel units may be exposed through the openings of these biocompatible layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.