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Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip

Research output: Contribution to journalArticleScientificpeer-review

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Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. / Sasaki, Yuichiro; Suzuki, Takuji; Iwagami, Takuma; Tani, Takaharu; Naganuma, Hideki; Kino, Hisashi; Hyttinen, Jari; Kellomäki, Minna; Tanaka, Tetsu.

In: Transactions of Japanese Society for Medical and Biological Engineering, Vol. 52, 17.08.2014, p. O-253-O-254.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Sasaki, Y, Suzuki, T, Iwagami, T, Tani, T, Naganuma, H, Kino, H, Hyttinen, J, Kellomäki, M & Tanaka, T 2014, 'Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip', Transactions of Japanese Society for Medical and Biological Engineering, vol. 52, pp. O-253-O-254. https://doi.org/10.11239/jsmbe.52.O-253

APA

Sasaki, Y., Suzuki, T., Iwagami, T., Tani, T., Naganuma, H., Kino, H., ... Tanaka, T. (2014). Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. Transactions of Japanese Society for Medical and Biological Engineering, 52, O-253-O-254. https://doi.org/10.11239/jsmbe.52.O-253

Vancouver

Sasaki Y, Suzuki T, Iwagami T, Tani T, Naganuma H, Kino H et al. Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. Transactions of Japanese Society for Medical and Biological Engineering. 2014 Aug 17;52:O-253-O-254. https://doi.org/10.11239/jsmbe.52.O-253

Author

Sasaki, Yuichiro ; Suzuki, Takuji ; Iwagami, Takuma ; Tani, Takaharu ; Naganuma, Hideki ; Kino, Hisashi ; Hyttinen, Jari ; Kellomäki, Minna ; Tanaka, Tetsu. / Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. In: Transactions of Japanese Society for Medical and Biological Engineering. 2014 ; Vol. 52. pp. O-253-O-254.

Bibtex - Download

@article{098dae4981bb45ab8b880b220dda04be,
title = "Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip",
abstract = "In this study, we have developed a chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. To realize visual restoration with high resolution, stimulus electrodes should be miniaturized and arrayed with high density. When we miniaturize them, however, their electrochemical impedances become higher and their amount of charge injection become smaller. Additionally, as the number of electrodes increases, it becomes difficult to make electrical connection to each pixel of the retinal prosthesis chip and each electrode by electrical wiring. To overcome these problems, we have developed the stimulus electrodes that have low electrochemical impedances and large charge injection capacities, and established a fabrication process of chip-surface stimulus electrode array. We fabricated the stimulus electrodes made of extremely porous platinum which had large-surface-area compared with conventional Pt. We also fabricated the chip-surface stimulus electrodes array on the subretinal prosthesis chip which surface was rough and covered with insulator film.",
keywords = "Electrode, Extremely porous platinum, Retinal prosthesis",
author = "Yuichiro Sasaki and Takuji Suzuki and Takuma Iwagami and Takaharu Tani and Hideki Naganuma and Hisashi Kino and Jari Hyttinen and Minna Kellom{\"a}ki and Tetsu Tanaka",
year = "2014",
month = "8",
day = "17",
doi = "10.11239/jsmbe.52.O-253",
language = "English",
volume = "52",
pages = "O--253--O--254",
journal = "Transactions of Japanese Society for Medical and Biological Engineering",
issn = "1347-443X",
publisher = "Nihon M E Gakkai",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip

AU - Sasaki, Yuichiro

AU - Suzuki, Takuji

AU - Iwagami, Takuma

AU - Tani, Takaharu

AU - Naganuma, Hideki

AU - Kino, Hisashi

AU - Hyttinen, Jari

AU - Kellomäki, Minna

AU - Tanaka, Tetsu

PY - 2014/8/17

Y1 - 2014/8/17

N2 - In this study, we have developed a chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. To realize visual restoration with high resolution, stimulus electrodes should be miniaturized and arrayed with high density. When we miniaturize them, however, their electrochemical impedances become higher and their amount of charge injection become smaller. Additionally, as the number of electrodes increases, it becomes difficult to make electrical connection to each pixel of the retinal prosthesis chip and each electrode by electrical wiring. To overcome these problems, we have developed the stimulus electrodes that have low electrochemical impedances and large charge injection capacities, and established a fabrication process of chip-surface stimulus electrode array. We fabricated the stimulus electrodes made of extremely porous platinum which had large-surface-area compared with conventional Pt. We also fabricated the chip-surface stimulus electrodes array on the subretinal prosthesis chip which surface was rough and covered with insulator film.

AB - In this study, we have developed a chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. To realize visual restoration with high resolution, stimulus electrodes should be miniaturized and arrayed with high density. When we miniaturize them, however, their electrochemical impedances become higher and their amount of charge injection become smaller. Additionally, as the number of electrodes increases, it becomes difficult to make electrical connection to each pixel of the retinal prosthesis chip and each electrode by electrical wiring. To overcome these problems, we have developed the stimulus electrodes that have low electrochemical impedances and large charge injection capacities, and established a fabrication process of chip-surface stimulus electrode array. We fabricated the stimulus electrodes made of extremely porous platinum which had large-surface-area compared with conventional Pt. We also fabricated the chip-surface stimulus electrodes array on the subretinal prosthesis chip which surface was rough and covered with insulator film.

KW - Electrode

KW - Extremely porous platinum

KW - Retinal prosthesis

U2 - 10.11239/jsmbe.52.O-253

DO - 10.11239/jsmbe.52.O-253

M3 - Article

VL - 52

SP - O-253-O-254

JO - Transactions of Japanese Society for Medical and Biological Engineering

JF - Transactions of Japanese Society for Medical and Biological Engineering

SN - 1347-443X

ER -