基于3D打印的定制脊柱侧弯矫形器设计制造与舒适度评价

Manufacture of Customized Orthosis in Adolescent Idiopathic Scoliosis and Comfort Evaluation Based on 3D Printing

针对青少年脊柱侧弯矫正问题,研制一款由3D打印制成的脊柱侧弯矫形器并做出舒适度评价.该方法依据色努矫形原理,建立脊柱侧弯矫形器三维模型,并考虑躯干约束对矫形器进行了有限元仿真分析和结构优化,最后进行模型的分块和3D打印,分析精度误差.依据模糊理论和层次分析法,建立了包括环境、材料、结构、运动4个方面的主观舒适度评价方法.结果表明:3D打印技术可实现定制脊柱侧弯矫形器的制造与生产,并在几何精度和穿戴舒适性上表现良好.

A 3D printed orthosis in adolescent idiopathic scoliosis（ AIS） was designed and manufactured to solve the adolescent scoliosis correction problem,and an evaluation of the printing comfort was made.By using Dr. Cheneau Orthopedic theory, a 3D model of the orthosis was established. And combined with trunk constraints,the finite element analysis of the orthosis was made. Then the author blocked the model and 3D print into entity to analyze printout’ s printing accuracy. On the basis of fuzzy theory and analytical hierarchy process （ AHP）,a subjective comfort evaluation including four influence factors of environment, material, structure and movement was designed. The results show that the 3D printing technology can achieve the manufacture of orthosis in AIS, and have a good performance in geometric accuracy and wearing comfort.