Paper Abstract and Keywords |
Presentation |
2018-10-20 11:20
Fundamental study on equivalent circuit model for electrochemical characterization of implantable porous electrode used in retinal prosthesis with suprachoroidal transretinal stimulation Shuhei Nomura (Teikyo Univ/ Kyushu Univ), Hiroyuki Tashiro (Kyushu Univ), Yasuo Terasawa (NIDEK), Jun Ohta (NAIST) MBE2018-31 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Visual prothesis is a medical device that restores lost visual function via electrical stimulation to the visual nervous system using metal stimulation electrodes. Excessive and chronic stimulation via the implanted electrode causes safety and durability problems such as damage to the surrounding tissue and elution of the electrodes. To secure the long-term safety of the stimulation pulses, it is important to understand the changes of the electrode characteristics in vivo.
In this study, we implanted a porous stimulation electrode array in a rabbit’s eyeball and obtained electrochemical impedance of active and inactive electrodes. From the result of equivalent circuit analysis, the characteristics of the porous electrode in the living body can be described by a simple equivalent circuit model containing solution resistances and electric double layer capacities. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Visual prosthesis / Stimulation electrode / Electrochemical impedance spectroscopy / Equivalent circuit analysis / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 257, MBE2018-31, pp. 23-28, Oct. 2018. |
Paper # |
MBE2018-31 |
Date of Issue |
2018-10-13 (MBE) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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MBE2018-31 |
Conference Information |
Committee |
NC MBE |
Conference Date |
2018-10-19 - 2018-10-20 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku Univ. |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
MBE |
Conference Code |
2018-10-NC-MBE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Fundamental study on equivalent circuit model for electrochemical characterization of implantable porous electrode used in retinal prosthesis with suprachoroidal transretinal stimulation |
Sub Title (in English) |
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Keyword(1) |
Visual prosthesis |
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Stimulation electrode |
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Electrochemical impedance spectroscopy |
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Equivalent circuit analysis |
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1st Author's Name |
Shuhei Nomura |
1st Author's Affiliation |
Teikyo University/ Kyushu University (Teikyo Univ/ Kyushu Univ) |
2nd Author's Name |
Hiroyuki Tashiro |
2nd Author's Affiliation |
Kyushu University (Kyushu Univ) |
3rd Author's Name |
Yasuo Terasawa |
3rd Author's Affiliation |
NIDEK CO., LTD. (NIDEK) |
4th Author's Name |
Jun Ohta |
4th Author's Affiliation |
Nara Institute of Science and Technology (NAIST) |
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Speaker |
Author-1 |
Date Time |
2018-10-20 11:20:00 |
Presentation Time |
25 minutes |
Registration for |
MBE |
Paper # |
MBE2018-31 |
Volume (vol) |
vol.118 |
Number (no) |
no.257 |
Page |
pp.23-28 |
#Pages |
6 |
Date of Issue |
2018-10-13 (MBE) |
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