基于最优拉丁超立方设计的糖尿病足鞋垫优化设计  

Optimization Design of Diabetic Shoe Insoles Based on Optimal Latin Hypercube Design

作　　者：李兴龙 杨永泰 LI Xinglong;YANG Yongtai(School of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002,China;Quanzhou Institute of Equipment Manufacturing,Haixi Institutes,Chinese Academy of Sciences,Jinjiang 362200,Fujian,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]福建农林大学机电工程学院,福州350002 [2]中国科学院海西研究院泉州装备制造研究中心,福建晋江362200 [3]中国科学院大学,北京100049

出　　处：《医用生物力学》2024年第2期312-318,共7页Journal of Medical Biomechanics

基　　金：福建省科技厅STS计划配套项目(2022T3050);福厦泉国家自主创新示范区协同创新平台专项(2020FX01)。

摘　　要：目的提出一种鞋材弹性模量与厚度联合优化设计糖尿病足鞋垫的方法,以降低足底压力和软组织内部应力。方法通过逆向工程方法建立足部有限元模型,基于足底压力分布特征划分鞋垫压力区域,采用有限元法对接触力学进行研究,为优化过程中调整不同区域内材料的弹性模量和鞋垫前后足厚度奠定基础,使用最优拉丁超立方设计得到最优参数组合。结果设计的鞋垫增加约37.55%的足底接触面积,跖骨区和足跟区的压力峰值分别降低15.07%、36.96%,足跟处软组织内部应力降低20.83%,足底筋膜张力降低约60%。结论所提出的方法可用于设计定制鞋垫,设计的个性化鞋垫具有更大的接触面积和降低糖尿病足底溃疡的良好潜力。Objective To propose a method for optimizing the design of diabetic foot insoles by combining the elastic modulus and thickness of footwear to reduce plantar pressure and internal stress in soft tissues.Methods A finite element model of The foot was established using reverse engineering techniques.Orthotic pressure regions were identified based on the characteristics of plantar pressure distributions.Contact mechanics were studied using the finite element method to lay the foundation for adjusting the elastic modulus of the materials and the thickness of the forefoot and rearfoot insoles in different regions during the optimization process.The optimal parameter combination was obtained using an optimal Latin hypercube design.Results The plantar contact area of the designed insole increased by approximately 37.55%,and the peak pressures in the metatarsal and heel regions were reduced by 15.07%and 36.96%,respectively.The internal stress in the soft tissues of the heel decreased by 20.83%.Tension in the plantar fascia decreased by 60%.Conclusions The proposed method can be used for designing customized insoles,and such designed personalized insoles have a greater contact area,with great potential in reducing diabetic foot ulcers.

关 键 词：足底压力 糖尿病足 最优拉丁超立方设计 软组织应力 个性化鞋垫 

分 类 号：R318.01[医药卫生—生物医学工程]