Analysis of chew-swallow complex using less invasive flexible electrode

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K10795
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Otorhinolaryngology
• Research Institution: Tohoku University
• Principal Investigator: Katori Yukio 東北大学, 医学系研究科, 教授 (20261620)
• Co-Investigator(Kenkyū-buntansha): 鳥光 慶一 東北大学, 工学研究科, 特任教授 (00393728) ; 小山 重人 東北大学, 大学病院, 准教授 (10225089) ; 川瀬 哲明 東北大学, 医工学研究科, 教授 (50169728)
• Research Collaborator: HIRANO Ai (KAWAMOTO Ai) ; OHTA Jun ; OHKOSHI Akira ; ISHI Ryo
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 嚥下 / 喉頭 / 咽頭 / 弾性線維 / 頭頸部癌

Outline of Final Research Achievements

For the monitoring of chew and swallowing condition in long period, the silk electrode has been used on the neck surface. Because of artifacts by the phonation and respiration movements, it was difficult to achieve a steady monitoring for the swallowing. The structure of the larynx and pharynx focusing those movement was evaluated histologically to assume the reason of the artifacts, and novel findings of distribution of elastic fibers and enteric plexus are published. To increase the stability of monitoring, the soft, paper type electrode which can detect surface movements of the skin by changing its electronic resistance has been developed and the experiment of monitoring in healthy subject is starting. Also the swallowing functions of head and neck cancer patients (the study will be carried out in those cases) has been evaluate and published.

Free Research Field

耳鼻咽喉科学