WCSE

Design of Rehabilitation Protective Gear for Distal Radius Fracture

Abstract— Distal radius fracture is the most common fracture type of upper limbs. After manual reduction, the affected part should be fixed mainly, and proper rehabilitation training should be done according to the healing situation to reduce the occurrence of complications. At present, the commonly used fixation methods include plaster, small splint, polymer bandage, etc. They all have their defects and cannot meet the training needs of patients in the early stage of rehabilitation. Therefore, this paper proposes a rehabilitation protective gear for distal radius fracture based on reverse modeling. The protective gear is divided into four parts: palm module, forearm module, palm flexion-dorsiflexion locking module, and radial-ulnar deviation locking module. Firstly, the structure of these modules is designed, in which 3D scanning technology is used in the forearm module to collect data of volunteers' upper limbs for reverse modeling. Secondly, ANSYS Workbench is used to do finite element analysis of the protective gear. The results show that the protective gear can satisfy the needs of external fixation of the affected part. After that, the lightweight design of the forearm module is carried in Rhino Grasshopper. The finite element analysis results show that the weight of the optimized forearm module is reduced to 86% of the original one while ensuring the mechanical properties. Finally, it is verified by experiments that the motion range of the protective gear can meet the needs of patients for early rehabilitation training.

Index Terms— 3D reconstruction, protective gear, distal radius fracture.

Jia-bao Guo
College of Mechanical Engineering, Southeast University
Gang Chen
College of Mechanical Engineering, Southeast University
Xing-song Wang
College of Mechanical Engineering, Southeast University
Meng-qian Tian
College of Mechanical Engineering, Southeast University

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Cite: Jia-bao Guo, Gang Chen, Xing-song Wang, Meng-qian Tian, "Design of Rehabilitation Protective Gear for Distal Radius Fracture," WCSE 2022 Spring Event: 2022 9th International Conference on Industrial Engineering and Applications, pp. 201-208, Sanya, China, April 15-18, 2022.