Volume 53, Issue 4 pp. 430-443
RESEARCH ARTICLE

Bionic design of the oral swallowing in vitro and its application in the dysphagia

Shanhua Qian

Corresponding Author

Shanhua Qian

School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu, China

Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu, China

Correspondence

Shanhua Qian, School of Mechanical Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China.

Email: [email protected]

Contribution: Conceptualization (equal), Formal analysis (equal), Funding acquisition (lead), ​Investigation (lead), Methodology (equal), Project administration (lead), Resources (equal), Validation (lead), Writing - review & editing (lead)

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Yue Wu

Yue Wu

School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu, China

Contribution: Conceptualization (equal), Data curation (equal), ​Investigation (equal), Methodology (lead), Software (lead), Writing - original draft (equal)

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Zhiyong Wang

Zhiyong Wang

Department of Rehabilitation Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fugian, China

Contribution: Data curation (equal), ​Investigation (supporting), Resources (equal), Validation (equal)

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Cheng Zhang

Cheng Zhang

School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu, China

Contribution: Data curation (supporting), ​Investigation (equal), Validation (equal), Writing - review & editing (lead)

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Jianfeng Huang

Jianfeng Huang

Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China

Contribution: Data curation (equal), ​Investigation (supporting), Software (equal), Visualization (supporting)

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Jinghu Yu

Jinghu Yu

School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu, China

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First published: 13 June 2022
Citations: 2

This article was published on AA publication on: 13 June 2022.

Funding information: Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology (Jiangnan University), Grant/Award Number: FMZ201907; Jiangnan University; China Postdoctoral Science Foundation, Grant/Award Number: 2018T110439; National Natural Science Foundation of China, Grant/Award Number: 51775244

Abstract

Dysphagia, the swallowing disorder, is a common disease among the elders and stroke patients. Therefore, based on the bionic swallowing device (BSD) in vitro of similar human-tongue motion during swallowing, the development of functional food is necessary to improve the food swallowing quality of the deglutition disorders patients. In this study, the tongue motion was thoroughly investigated by extracting the characteristic data, and appropriate mechanisms in vitro were adopted to replicate the motion of the tongue swallowing according to the normal swallowing oropharyngeal data. The application of the BSD was also investigated at different swallowing grades (SGs). The study results indicated that the tongue motion consisted of tongue root point (TRP) and several tongue motor points (TMPs). The cam-link and push-rod mechanisms showed ellipse lines for TRP motion and straight lines for TMPs, respectively. Higher correlation coefficients between the tongue trajectories in the oropharyngeal data and simulated curves of the combined mechanism were observed. The average correlation coefficients between the tongue trajectories of patients at five SGs and those of the BSD were 0.87, proving its effectiveness and potential application. Furthermore, the corn-paste experiments of the BSD showed that dysphagia at five SGs could be a suitable choice for certain food concentrations. This will provide valuable insight into developing more functional foods in vitro for high deglutition disorders.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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