3D打印聚醚醚酮固定型手腕矫形器的生物力学分析及结构优化  

Biomechanical Analysis and Structural Optimization of 3D-Printed Polyether Ether Ketone(PEEK)Static Wrist Orthosis

作　　者：邱子彦 朱凌锋 张贺然 尹文成 汤磊 邹东明[4] 陈斌凌 王玲 QIU Ziyan;ZHU Lingfeng;ZHANG Heran;YIN Wencheng;TANG Lei;ZOU Dongming;CHEN Binling;WANG Ling(State Key Laboratory for Manufacturing System Engineering,School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710054,China;Key Laboratory for Research and Evaluation of Medical Additive Manufacturing Devices,State Drug Administration,Xi’an Jiaotong University,Xi’an 710054,China;State Industry-Education Integration Center for Medical Innovations,Xi’an Jiaotong University,Xi’an 710054,China;School of Mechanical and Vehicle Mechanical Engineering,Beijing Institute of Technology,Beijing 10081,China)

机构地区：[1]西安交通大学机械工程学院,精密微纳制造技术全国重点实验室,西安710054 [2]西安交通大学国家药监局医用增材制造器械研究与评价重点实验室,西安710054 [3]西安交通大学国家医学攻关产教融合创新平台(中心),西安710054 [4]北京理工大学机械与车辆学院,北京100081

出　　处：《医用生物力学》2025年第2期378-386,共9页Journal of Medical Biomechanics

基　　金：国家重点研发计划项目(2023YFB4603500,2022YFB4600500);中央高校基本科研业务费专项资金;陕西省创新团队计划(2023-CX-TD-17)。

摘　　要：目的针对个性化手腕矫形器的临床需求,提出一种拓扑优化设计方法,以实现个性化、轻量化且舒适度高的手腕矫形器宏微结构一体化优化设计。方法建立手腕矫形器和上肢的复合生物力学有限元模型,量化研究矫形器几何参数对其佩戴固定效果及舒适度的影响。采用多工况拓扑优化和微结构设计,对其非承力区进行设计优化;利用3D打印技术,以聚醚醚酮(polyether ether ketone,PEEK)制造矫形器,评价验证设计合理性。结果在保证机械强度的前提下,3D打印PEEK矫形器的重量相较于传统矫形器减轻了28%;皮肤接触界面压强和主观问卷表明受试者佩戴矫形器体验良好。结论在保证机械强度和固定效果的同时实现了矫形器的个性化、轻量化和高舒适度设计。Objective In response to the clinical needs for personalized wrist orthoses,a topological optimization design method was proposed to achieve an integrated macro-and micro-structural optimization of a personalized,lightweight,and comfortable wrist orthosis.Methods A composite biomechanical finite element model of the wrist orthosis and upper limb was established to quantify the effects of the orthosis geometry on its fixation performance and comfort.A multi-condition topological optimization and microstructure design approach was employed to optimize the non-load-bearing areas of the orthosis.The orthosis was manufactured using three-dimensional(3D)-printed polyether ether ketone(PEEK),and the feasibility of the design was validated.Results While maintaining mechanical strength,the weight of the 3D-printed PEEK orthosis was reduced by 28%compared to the traditional orthoses.Both the pressure at the skin contact interface and the results of a subjective questionnaire indicated that test subjects experienced a high level of comfort wearing the orthosis.Conclusions The orthosis design achieved personalization,lightweight structure,and high comfort while ensuring mechanical strength and fixation performance.

关 键 词：手腕矫形器 个性化设计 生物力学分析 有限元分析 拓扑优化 

分 类 号：R318.01[医药卫生—生物医学工程]