Implantable wireless 64-channel system with flexible ECoG electrode and optogenetics probe

Shusuke Yoshimoto, Teppei Araki, Takafumi Uemura, Toshikazu Nezu, Tsuyoshi Sekitani, Takafumi Suzuki, Fumiaki Yoshida, Masayuki Hirata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents a wireless 64-channel electrocorticogram (ECoG) recording system with 2-channel optogenetics manipulation. The proposed system, which is designed minimally to make it implantable into an animal, comprises a main board (75 mm × 40 mm × 12 mm and 33.53 g) and analog-to-digital converter (ADC) boards (25 mm × 20 mm × 2.5 mm and 0.98 g). Each ADC board has an 8-channel 24-bit ADC module that can be connected to the main board with a flexible cable. A biocompatible and flexible ECoG electrode is proposed for non-invasive monitoring. The electrode is covered by shape-memory polymer, which is solid at room temperature (27°C) and flexible at body temperature (35°C). The solid electrode be inserted into a brain. The electrode becomes flexible because of the brain temperature. In addition to the recording channels, two blue and yellow LEDs are developed on a flexible polyimide cable (50 μm thickness and 500 μm width) for optogenetics. This paper presents experimentally obtained results demonstrating that the proposed system records the ECoG of a rat with the flexible electrode and the proposed wireless system.

Original languageEnglish
Title of host publicationProceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages476-479
Number of pages4
ISBN (Electronic)9781509029594
DOIs
Publication statusPublished - Jan 1 2016
Externally publishedYes
Event12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016 - Shanghai, China
Duration: Oct 17 2016Oct 19 2016

Other

Other12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016
CountryChina
CityShanghai
Period10/17/1610/19/16

Fingerprint

analog to digital converters
Digital to analog conversion
Electrodes
electrodes
probes
cables
brain
recording
solid electrodes
Brain
body temperature
Cables
polyimides
rats
animals
manipulators
Shape memory effect
light emitting diodes
Polyimides
modules

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Instrumentation
  • Biomedical Engineering

Cite this

Yoshimoto, S., Araki, T., Uemura, T., Nezu, T., Sekitani, T., Suzuki, T., ... Hirata, M. (2016). Implantable wireless 64-channel system with flexible ECoG electrode and optogenetics probe. In Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016 (pp. 476-479). [7833835] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BioCAS.2016.7833835

Implantable wireless 64-channel system with flexible ECoG electrode and optogenetics probe. / Yoshimoto, Shusuke; Araki, Teppei; Uemura, Takafumi; Nezu, Toshikazu; Sekitani, Tsuyoshi; Suzuki, Takafumi; Yoshida, Fumiaki; Hirata, Masayuki.

Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 476-479 7833835.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yoshimoto, S, Araki, T, Uemura, T, Nezu, T, Sekitani, T, Suzuki, T, Yoshida, F & Hirata, M 2016, Implantable wireless 64-channel system with flexible ECoG electrode and optogenetics probe. in Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016., 7833835, Institute of Electrical and Electronics Engineers Inc., pp. 476-479, 12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016, Shanghai, China, 10/17/16. https://doi.org/10.1109/BioCAS.2016.7833835
Yoshimoto S, Araki T, Uemura T, Nezu T, Sekitani T, Suzuki T et al. Implantable wireless 64-channel system with flexible ECoG electrode and optogenetics probe. In Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 476-479. 7833835 https://doi.org/10.1109/BioCAS.2016.7833835
Yoshimoto, Shusuke ; Araki, Teppei ; Uemura, Takafumi ; Nezu, Toshikazu ; Sekitani, Tsuyoshi ; Suzuki, Takafumi ; Yoshida, Fumiaki ; Hirata, Masayuki. / Implantable wireless 64-channel system with flexible ECoG electrode and optogenetics probe. Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 476-479
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