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Flexible Parylene Packaged Intraocular Coil for Retinal Prostheses

Li, Wen and Rodger, Damien C. and Meng, Ellis and Weiland, James D. and Humayun, Mark S. and Tai, Yu-Chong (2006) Flexible Parylene Packaged Intraocular Coil for Retinal Prostheses. In: Microtechnologies in Medicine and Biology. IEEE , Piscataway, NJ, pp. 105-108. ISBN 978-1-4244-0337-0. https://resolver.caltech.edu/CaltechAUTHORS:20110721-094836263

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Abstract

We present a flexible and fully-implantable coil designed for use as a power and data transfer component in retinal prosthesis applications. Compared with traditional hand-made intraocular coils, this microfabricated coil is flexible, with a 9.5 mm outer diameter and 10-mum-thick parylene C as the primary structural and packaging material. A post-fabrication heat treatment was used to improve the parylene package in order to protect the device in harsh corrosive environments such as the human eye. Long-term accelerated-lifetime soak testing in heated saline has been performed, and the mean time to failure (MTTF) of the parylene package extrapolated to 37°C was estimated using the Arrhenius relationship. The electrical failure of this device was also characterized by measuring the DC resistance in saline.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/MMB.2006.251502DOIArticle
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4281320&isnumber=4281284PublisherArticle
ORCID:
AuthorORCID
Rodger, Damien C.0000-0002-1583-5946
Humayun, Mark S.0000-0002-5830-5208
Tai, Yu-Chong0000-0001-8529-106X
Additional Information:© 2006 IEEE. Issue Date: 9-12 May 2006, Date of Current Version: 30 July 2007. This work was supported in part by the Engineering Research Centers Program of the National Science Foundation under Award Number EEC-0310723 and by a fellowship from the Whitaker Foundation (D.R.). The authors would also like to thank Mr. Trevor Roper and other members of the Caltech Micromachining Laboratory for their assistance with fabrication.
Funders:
Funding AgencyGrant Number
NSFEEC-0310723
Whitaker FoundationUNSPECIFIED
Subject Keywords:Accelerated-lifetime soak testing, Coil, Intraocular, Parylene, Retinal prostheses
Record Number:CaltechAUTHORS:20110721-094836263
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110721-094836263
Official Citation:Li, W.; Rodger, D.C.; Meng, E.; Weiland, J.D.; Humayun, M.S.; Tai, Y.-C.; , "Flexible Parylene Packaged Intraocular Coil for Retinal Prostheses," Microtechnologies in Medicine and Biology, 2006 International Conference on , vol., no., pp.105-108, 9-12 May 2006 doi: 10.1109/MMB.2006.251502 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4281320&isnumber=4281284
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24489
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:21 Jul 2011 22:02
Last Modified:09 Mar 2020 13:19

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