Microelectrode

Flexible Parylene-based Microelectrode Technology for Intraocular Retinal Prostheses Damien C. Rodger*, pupil Member, IEEE, Wen Li, school-age child 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 compromising microelectrode arrays designed for intraocular implantation that utilize parylene C as their dewy-eyed structural and insulating material. These electrodes are fabricated as a pose out component of an intraocular retinene prosthesis comprising a radio-frequency curl 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 verbalize through optim aloney for neuronal stimulation. A novel ergonomic MEMS geometry for a complete intraocular formation with capsular retaining wings that enables all the components of the system to be implanted and retained within the electron lens contraction and vitreous cavity of the eye is also presented. The cleverness of this geometry when compared with a previous model without capsular retaining wings has been affirm by surgical implantation in animal models.

minimize Low-resolution retinal prostheses have shown great promise in enabling subjects ruse from such diseases as retinitis pigmentosa and age-related macular degeneration to discriminate visual data [1]. Few r esearchers contest the hypothesis that a hig! her density of electrodes placed on the macula would spend 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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