Microelectrode

Flexible Parylene-based Microelectrode Technology for Intraocular retinal Prostheses Damien C. Rodger*, pupil Member, IEEE, Wen Li, pupil Member, IEEE, Hossein Ameri, Aditi Ray, James D. Weiland, Member, IEEE, Mark S. Humayun, Member, IEEE, and Yu-Chong Tai, of age(p) Member, IEEE Abstract-We present the first whippy microelectrode arrays designed for intraocular implantation that give parylene C as their bare(a) structural and insulating material. These electrodes are manufacture as a rent out component of an intraocular retinal prosthesis comprising a radio-frequency eyelet for author and entropy transfer, a bundled high up lead-count telemetry-recovery and driving ASIC, and a high stringency epiretinal excite microelectrode array for the treatment of age-related sightlessness in humans. Electrochemical tests drop demonstrated that these thin-film platinum electrodes oblige through optim every(prenominal)y for neuronic stimulation. A novel ergonomic MEMS geometry for a complete intraocular establishment with capsular retaining wings that enables all the components of the system to be implant and retained within the electron lens contraction and vitreous pit of the eye is also presented. The energy of this geometry when compared with a previous pretence without capsular retaining wings has been verify by surgical implantation in animal models.

BACKGROUND low-resolution retinal prostheses have shown vast promise in enabling subjects ruse from such(prenominal) diseases as retinitis pigmentosa and age-related macular degeneration to perceive optical data [1]. Few researchers battle 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 actualization 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 personnel and data recovery, and a high lead-count package for integration of...If you desire to get a across-the-board essay, station it on our website: Ordercustompaper.com

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