Title :
Retinal prosthesis to aid the visually impaired
Author :
Liu, W. ; McGucken, E. ; Vichienchom, K. ; Clements, S.M. ; DeMarco, S.C. ; Humayun, M. ; de Juan, E. ; Weiland, J. ; Greenberg, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
In this retinal prosthesis project, a rehabilitative device is being designed to replace the functionality of defective photoreceptors in patients suffering from retinal pigmentosa and age-related macular degeneration. An implantable intraocular unit receives power and signal via a telemetric inductive link with an extraocular unit. The extraocular unit consists of a video camera and video processing board, a telemetry protocol encoder chip, an RF amplifier and a primary coil, while the intraocular unit consists of a secondary coil, a rectifier and regulator, a retinal chip with a telemetry protocol decoder and stimulus signal generator, and an electrode array. This paper describes the design and testing of the overall system components
Keywords :
prosthetics; telemetry; video signal processing; vision defects; RF amplifier; electrode array; macular degeneration; rehabilitative device; retinal chip; retinal pigmentosa; retinal prosthesis; telemetry protocol encoder; video processing; Cameras; Coils; Photoreceptors; Pigmentation; Prosthetics; Protocols; Radiofrequency amplifiers; Rectifiers; Retina; Telemetry;
Conference_Titel :
Systems, Man, and Cybernetics, 1999. IEEE SMC '99 Conference Proceedings. 1999 IEEE International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5731-0
DOI :
10.1109/ICSMC.1999.812429
