著者

近藤 孝晴

出版者

一般社団法人 日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム 2015.7 (ISSN:24329495)

巻号頁・発行日

pp._30am2-C-4, 2015-10-21 (Released:2017-06-19)

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The first breath test in clinical medicine is measurements of hydrogen in breath, applied for the diagnosis of milk intolerance. Since then many gases have been studied in many situations. In this symposium, The usefulness of several gases such as CO, NO, hydrogen, acetone and ammonia have been discussed. Some, but not all, of these gases have been used in clinical practice.

著者

荒井 都子 工藤 優汰 三木 則尚

出版者

一般社団法人 日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム 2015.7 (ISSN:24329495)

巻号頁・発行日

pp._28pm3-E-4, 2015-10-21 (Released:2017-06-19)

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In this paper, we propose a candle-like micro-needle electrode for electroencephalogram (EEG) measurement from the hairy part of the scalp. Conventional wet electrodes for EEG measurement require skin abrasion and electrically conductive gel. This is time-consuming and uncomfortable. On the other hand, micro-needle electrodes can eliminate this process by penetrating through the high impedance stratum corneum. So far, our group has developed a polymer-based dry micro-needle electrode and measured EEG from the frontal pole. However, it was impossible to measure EEG from the hairy part of the scalp by using this electrode because hair obstructs contact between microneedles and the scalp. Therefore, we fabricated candle-like micro-needle electrodes that has pillars for avoiding hair and measured EEG from the occipital, where there is hair. The acquired signal showed as high quality as the conventional wet electrode.