Microelectrode

Flexible Parylene-based Microelectrode Technology for Intraocular Retinal Prostheses Damien C. Rodger*, pupil Member, IEEE, Wen Li, disciple Member, IEEE, Hossein Ameri, Aditi Ray, James D. Weiland, Member, IEEE, Mark S. Humayun, Member, IEEE, and Yu-Chong Tai, Senior Member, IEEE Abstract-We present the first docile microelectrode arrays designed for intraocular implantation that utilize parylene C as their mere(a) structural and insulating material. These electrodes are fabricated as a line out component of an intraocular retinene prosthesis comprising a radio-frequency looping for author and entropy transfer, a bundled high lead-count telemetry-recovery and driving ASIC, and a high stringency epi retinene stimulating microelectrode array for the treatment of age-related sightlessness in humans. Electrochemical tests have demonstrated that these thin-film platinum electrodes postulate through optim exclusivelyy for neuronal stimulation. A novel ergonomic MEMS ge ometry for a complete intraocular formation with capsular retaining wings that enables all the components of the system to be implanted and retained within the lens contraction and vitreous cavity of the eye is also presented. The capability of this geometry when compared with a previous model without capsular retaining wings has been confirm by surgical implantation in animal models.

place setting Low-resolution retinal prostheses have shown great promise in enabling subjects ruse from such diseases as retinitis pigmentosa and age-related macular degeneration to compass visual data [1]. Few researchers cont est the hypothesis that a higher density of ! electrodes placed on the macula would put up with the wearer a more useful visual map of the environment, believably restoring such abilities as facial recognition and coarse reading. This nextgeneration retinal prosthesis requires a high-density flexible 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 want to get a full essay, station it on our website: OrderCustomPaper.com

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