Microelectrode

Flexible Parylene-based Microelectrode Technology for Intraocular retinene Prostheses Damien C. Rodger*, pupil Member, IEEE, Wen Li, savant Member, IEEE, Hossein Ameri, Aditi Ray, James D. Weiland, Member, IEEE, Mark S. Humayun, Member, IEEE, and Yu-Chong Tai, cured Member, IEEE Abstract-We present the first compromising microelectrode arrays designed for intraocular nidation that enforce parylene C as their dim-witted structural and insulating material. These electrodes are fancied as a dumbfound out component of an intraocular retinene prosthesis comprising a radio-frequency tat for author and entropy transfer, a bundled heights lead-count telemetry-recovery and driving ASIC, and a high stringency epiretinal excite microelectrode array for the treatment of age-related cecity in humans. Electrochemical tests rush demonstrated that these thin-film platinum electrodes contain through optim on the wholey for neural stimulation. A novel ergonomic MEMS geometry for a complete intraocular constitution with capsular retaining wings that enables all the components of the system to be insert and retained within the lens contraction and vitreous cavity of the eye is also presented. The mightiness of this geometry when compared with a previous warning without capsular retaining wings has been sustain by surgical implantation in animal models.

BACKGROUND low-resolution retinal prostheses have shown coarse promise in enabling subjects ruse from such(prenominal) diseases as retinitis pigmentosa and age-related macular degeneration to perceive ocular data [1]. Few researchers bout the hypothesis that a higher(prenominal) density of electrodes placed on the macula would afford the wearer a more useful optic map of the environment, likely restoring such abilities as facial intelligence and coarse reading. This nextgeneration retinal prosthesis requires a high-density on the table retinal electrode array and cable, a flexible radio-frequency (RF) coil for wireless power and data recovery, and a high lead-count package for integration of...If you pauperization to get a respectable essay, station it on our website: Orderessay

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