経鼻栄養チューブ先端位置の磁気的検出法の開発

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: 2013/11/01

タイトル(英語): Magnetic Detection of the Tip Position of Nutrition Feeding Tube

著者名: 武内　裕香（千葉大学大学院 工学研究科），田中　慶太（東京電機大学大学院 理工学研究科），内川　義則（東京電機大学大学院 理工学研究科），栗城　眞也（東京電機大学総合研究所）

著者名(英語): Yuka Takeuchi (Graduate School of Engineering, Chiba University), Keita Tanaka (Graduate School of Science and Engineering, Tokyo Denki University), Yoshinori Uchikawa (Graduate School of Science and Engineering, Tokyo Denki University), Shinya Kuriki (The Research Institute for Science and Technology, Tokyo Denki University)

キーワード: 交流帯磁率，磁気検出，栄養チューブ，励起コイル，検出コイル　　AC magnetic susceptibility，Magnetic detection，Feeding tube，Excitation coil，Detection coil

要約(英語): Nutrition feeding tubes are widely used in hospitals for patients who have difficulty in swallowing. The tube is expected to stay within the stomach, but is sometimes drawn up to the esophagus, which might cause diseases such as pneumonia. Therefore, it is necessary to confirm that the tip of tube exists in the stomach. For safely and easy monitoring of the tip position of the feeding tube within the body, we have developed a method using ac magneto-susceptometry to detect a magnetic marker that was inserted at the tube tip. We analyzed the magnetic field generated by the line current of a rectangular excitation coil and determined the geometry to detect the signal field in a direction perpendicular to the excitation field. The generated ac dipole-field in synchronization with the excitation field was measured as the voltage with a detection coil fixed near the excitation coil. As a result, we could detect the signal down to the order of 1 nT at a depth of 15 cm from the detection coil.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.133 No.11 （2013） 特集：電気関係学会関西連合大会

本誌掲載ページ: 2075-2081 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/133/11/133_2075/_article/-char/ja/