Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2018-11-22 15:50
Electrochemical impedance property of implantable porous electrode during short-term in vivo stimulation for visual prosthesis with suprachoroidal transretinal stimulation
Shuhei Nomura (Teikyo Univ/Kyushu Univ), Hiroyuki Tashiro (Kyushu Univ.), Yasuo Terasawa (NIDEK), Jun Ohta (NAIST) MBE2018-47
Abstract (in Japanese) (See Japanese page) 
(in English) Visual prothesis is a medical device that restores lost visual function by electrical stimulation to the visual nervous system via implanted metal electrodes. Excessive and chronic stimulation causes damage to the surrounding tissue and to the electrodes. In this study, we evaluated the effect of stimulation current on the electrochemical characteristics of the electrodes implanted in a living body. We implanted a porous electrode array in a rabbit’s eyeball, and evaluated electrochemical impedance of active and inactive electrodes over a month. The electrochemical characteristics of the electrodes differed between active and inactive electrode. Increase of solution resistances of the inactive electrode was observed over 3 weeks after implantation. It was considered to be caused by capsulation due to foreign-body reaction. On the other hand, the similar change was not observed in the active electrode. It might be owing to desorption of adsorbed protein from the surface of the electrode by the stimulation current.
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. 321, MBE2018-47, pp. 55-60, Nov. 2018.
Paper # MBE2018-47 
Date of Issue 2018-11-15 (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)
Download PDF MBE2018-47

Conference Information
Committee MBE NC  
Conference Date 2018-11-22 - 2018-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2018-11-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Electrochemical impedance property of implantable porous electrode during short-term in vivo stimulation for visual prosthesis with suprachoroidal transretinal stimulation 
Sub Title (in English)  
Keyword(1) Visual prosthesis  
Keyword(2) Stimulation electrode  
Keyword(3) Electrochemical impedance spectroscopy  
Keyword(4) Equivalent circuit analysis  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
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)
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2018-11-22 15:50:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2018-47 
Volume (vol) vol.118 
Number (no) no.321 
Page pp.55-60 
#Pages 6 
Date of Issue 2018-11-15 (MBE) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan