2022 Fiscal Year Final Research Report
A system to evaluate viscosities of thickened liquid foods and a safety criterion to prevent aspiration for dysphagia patients
| Project/Area Number |
20K02340
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 08030:Family and consumer sciences, and culture and living-related
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| Research Institution | Muroran Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 液体食品 / 誤嚥 / とろみ / 嚥下模型 |
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| Outline of Final Research Achievements |
An apparatus modeled after the flow path in swallowing liquid foods was constructed having a flow channel. To the channel, a circularly-cylindrical obstruction against the flow was fixed to play structurally the part of an epiglottis in mesopharynx. The apparatus was designed operationally with an opening-variable gate varying its opening of flow control. The parameters were the holding time and flow resistance operated with the gate, which were assumed to indicate the swallowing reflex and power, respectively. The flow experiments using the apparatus could represent a healthy swallowing process and processes with dysphagia. For thickened liquid foods used to help dysphagia patient’s swallowing and to prevent the aspiration, the efficacies of the viscosity and elasticity of the liquids were discussed.
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| Free Research Field |
食品工学
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| Academic Significance and Societal Importance of the Research Achievements |
病気や高齢による嚥下困難者に関する問題は人口の高齢化と関連し，その解決は大きな意義をもち，医歯学，看護介護学，生活（食品）科学，理工学などの広い分野で取り上げられている．それぞれの分野でアプローチは異なるが，共通する志向は，嚥下困難者と向き合う医療現場での安全性の向上である．工学的なアプローチは，複雑な嚥下プロセスを適当に表現し，現象の予測の結果を問題の解決に役立てることである．本研究の成果は，栄養の管理，指導さらには治療のためのデータとしての活用へ展開するという潜在性を有するものである．
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