《中国康复理论与实践》

《中国康复理论与实践》 ›› 2025, Vol. 31 ›› Issue (6): 736-744.doi: 10.3969/j.issn.1006-9771.2025.06.015

• 辅助技术 • 上一篇    

吞咽动态模型构建与仿真：以舌运动幅度下降为例

张炜1, 钱善华1,2(), 刘丽3, 蒋宇靖1, 俞经虎1, 范雨超1, 卫小梅4   

  1. 1.江南大学机械工程学院，江苏无锡市 214122
    2.江苏省食品先进制造装备技术重点实验室，江苏无锡市 214122
    3.江南大学附属医院，江苏无锡市 214122
    4.中山大学附属第三医院康复医学科，广东广州市 510630
  • 收稿日期:2024-12-27 修回日期:2025-04-07 出版日期:2025-06-25 发布日期:2025-06-16
  • 通讯作者: 钱善华(1980-)，男，汉族，江苏盐城市人，博士，教授，博士研究生导师，主要研究方向：仿生设计及表面调控、高端装备界面科学与技术。E-mail： qiansh@jiangnan.edu.cn E-mail:qiansh@jiangnan.edu.cn
  • 作者简介:张炜(1999-)，男，汉族，江苏南通市人，硕士研究生，主要研究方向：仿生设计。
  • 基金资助:
    1.国家自然科学基金项目(52375184);2.全民营养科研基金项目(CNS-NNSRG2024-290);3.江苏高校"青蓝工程"项目

Construction and simulation of swallowing dynamic model: taking tongue movement descent as an example

ZHANG Wei1, QIAN Shanhua1,2(), LIU Li3, JIANG Yujing1, YU Jinghu1, FAN Yuchao1, WEI Xiaomei4   

  1. 1. School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
    2. Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, Jiangsu 214122, China
    3. Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214122, China
    4. Department of Rehabilitation Medicine, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510630, China
  • Received:2024-12-27 Revised:2025-04-07 Published:2025-06-25 Online:2025-06-16
  • Contact: E-mail: qiansh@jiangnan.edu.cn E-mail:qiansh@jiangnan.edu.cn
  • Supported by:
    National Natural Science Foundation of China(52375184);National Nutrition Research Fund(CNS-NNSRG2024-290);Qinglan Project in Jiangsu Universities

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摘要：

目的 构建吞咽动态模型以模拟舌运动幅度下降导致的吞咽障碍。

方法 通过CT和电视荧光吞咽造影检查(VFSS)的医学影像数据建立吞咽动态模型，采用有限元法和光滑粒子流体动力法(SPH)分别模拟软组织和食团，将同一时刻模型姿态与12例吞咽障碍患者VFSS影像数据对比，采用归一化方法定量评估吞咽动态模型的有效性；通过调整不同黏度下吞咽动态模型的舌运动幅度，探索舌运动在吞咽过程中的作用机制和评估吞咽安全的有效性。

结果 吞咽动态模型呈现的舌运动姿态和食团轨迹与VFSS影像高度一致，VFSS影像会厌附近区域亮度与仿真结果中SPH粒子数等效亮度高度相关(r= 0.97)。舌运动幅度下降20%时，误吸粒子数、吞咽有效性和口咽腔内食团粒子平均速度均表现良好；布丁型流体在舌运动幅度下降较大的情况下，仍表现出良好的吞咽特性。

结论 吞咽动态模型能模拟人体吞咽过程，为吞咽障碍患者的康复训练和特医食品开发提供较好支持，具有临床应用潜力。

关键词: 吞咽障碍, 计算机模拟, 舌运动, 食团黏度

Abstract:

Objective To construct a swallowing dynamic model for simulating dysphagia caused by reduced tongue movement amplitude.

Methods A swallowing dynamic model was established based on medical imaging data from CT and videofluoroscopic swallowing study (VFSS). The finite element method was used to simulate soft tissues, while the smoothed particle hydrodynamics method (SPH) was used to simulate bolus. The model's posture at each time point was compared with the imaging data of VFSS from twelve patients with dysphagia, and a normalization method was used for quantitative evaluation of the model's validity. By adjusting the tongue movement amplitude under different viscosity conditions, the role of tongue movement in the swallowing process was investigated, and the swallowing safety and efficiency were assessed.

Results The tongue posture and bolus trajectory presented by the swallowing dynamic model were consistent with the VFSS imaging. The brightness in the epiglottis area in VFSS images correlated with the equivalent brightness of SPH particles in the simulation results (r = 0.97). As the tongue movement amplitude reducing by 20%, the number of aspirated particles, swallowing efficiency and the average velocity of bolus particles in the oropharyngeal cavity all performed well. Pudding-like fluids exhibited favorable swallowing characteristics even when tongue movement amplitude reducing significantly.

Conclusion The swallowing dynamic model can simulate the human swallowing process, providing good support for rehabilitation training of patients with dysphagia and the development of specialized medical foods, demonstrating significant potential for clinical applications.

Key words: dysphagia, computer simulation, tongue movement, bolus viscosity

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