箔状圧電センサを利用した血管粘弾性インデックスの非観血モニタリング

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2011/09/01

タイトル(英語): Noninvasive Monitoring of Arterial Viscoelastic Indices Using a Foil-type Pressure Sensor

著者名: 丸山　大海（広島大学大学院工学研究科），平野　陽豊（広島大学大学院工学研究科），（広島大学大学院工学研究科），辻　敏夫（広島大学大学院工学研究科），福田　修（産業技術総合研究所），上野　直広（産業技術総合研究所），鵜川　貞二（日本光電工業（株）），中村　隆治（広島大学大学院医歯薬学総合研究科），佐伯　昇（広島大学大学院医歯薬学総合研究科），河本　昌志（広島大学大学院医歯薬学総合研究科），吉栖　正生（広島大学大学院医歯薬学総合研究科）

著者名(英語): Hiromi Maruyama (Hiroshima Univ., Graduate School of Engineering), Harutoyo Hirano (Hiroshima Univ., Graduate School of Engineering), Abdugheni Kutluk (Hiroshima Univ., Graduate School of Engineering), Toshio Tsuji (Hiroshima Univ., Graduate School of Engineering), Osamu Fukuda (National Institute of Advanced Industrial Science and Technology), Naohiro Ueno (National Institute of Advanced Industrial Science and Technology), Teiji Ukawa (Nihon Kohden Corporation), Ryuji Nakamura (Hiroshima Univ., Graduate School of Biomedical Sciences), Noboru Saeki (Hiroshima Univ., Graduate School of Biomedical Sciences), Masashi Kawamoto (Hiroshima Univ., Graduate School of Biomedical Sciences), Masao Yoshizumi (Hiroshima Univ., Graduate School of Biomedical Sciences)

キーワード: 機械インピーダンス，血管壁，光電容積脈波，血圧，圧力センサ　　mechanical impedance，arterial wall，photoplethysmogram，blood pressure，pressure sensor

要約(英語): This paper proposes a noninvasive method for estimating the dynamic characteristics of arterial walls using pulse waves measured in various parts of the body by a foil-type pressure sensor. The sensor not only has high sensitivity and flexibility but also features the ability to continuously measure the alternating-current component of pulse waves. These capabilities make it suitable for estimating the dynamic characteristics of arterial walls. In this paper, a foil-type pressure sensor was employed to measure pulse waves based on the tonometry approach, and a method of estimating changes in arterial viscoelastic indices was proposed based on the measured pulse waves and photoplethysmograms. In order to accurately measure blood pressure, first, we examined suitable mechanical forces to the sensor, and found that values of 5-25[N] yielded the best performance. We then estimated the arterial viscoelastic indices of a radial artery and a dorsal pedis artery when mechanical pain stimuli were applied to the subjects. The results suggested that the estimated indices can be used to quantitatively assess vascular response caused by sympathicotonia. We thus concluded that the proposed method enabled noninvasive measurement of pulse waves in the dorsal pedis artery and estimation of arterial viscoelastic indices.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.131 No.9 （2011） 特集：医療・ヘルスケアにおける工学技術の新展開

本誌掲載ページ: 1518-1527 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/131/9/131_9_1518/_article/-char/ja/