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Sewing Bioprobe

Referring to the conventional sewing mechanism using a sewing needle and thread, here we propose a flexible `thread' bioprobe device, which is sewn to the biological tissue by guiding tungsten-microneedle. The thread bioprobe was fabricated by parylene-based MEMS process. The fabricated bioprob...

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Main Authors: Yamashita, Koji, Sawahata, Hirohito, Yamagiwa, Shota, Morikawa, Yusuke, Numano, Rika, Koida, Kowa, Kawano, Takeshi
Format: Conference Proceeding
Language:English
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creator Yamashita, Koji
Sawahata, Hirohito
Yamagiwa, Shota
Morikawa, Yusuke
Numano, Rika
Koida, Kowa
Kawano, Takeshi
description Referring to the conventional sewing mechanism using a sewing needle and thread, here we propose a flexible `thread' bioprobe device, which is sewn to the biological tissue by guiding tungsten-microneedle. The thread bioprobe was fabricated by parylene-based MEMS process. The fabricated bioprobe was sewn to the mouse's muscle and platinum (Pt)-microelectrodes in the bioprobe device detected electromyography (EMG) signals. Similar to sewing the device to the muscle, the flexible bioprobe also penetrated through the mouse's brain tissue and detected light evoked neuronal activity. Compared to conventional rigid microelectrode (e.g., silicon needle), the proposed sewing bioprobe device offers i) minimization of tissue damage due to the device flexibility, ii) device (microelectrode) placement at precise position in the tissue, and iii) attachment of the device to the tissue for both acute and chronic applications.
doi_str_mv 10.1109/MEMSYS.2019.8870613
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subjects Brain
In vivo
Mice
Microelectrodes
Muscles
Needles
Visualization
title Sewing Bioprobe
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