假肢接受腔3D打印模型的正逆向混合建模

Forward and Reverse Hybrid Modeling of 3D Printed of Prosthetic Socket

针对传统工艺制作假肢接受腔依赖于石膏取型,以及金属阳四爪连接盘与假肢接受腔依赖于人工手动加工连接的问题,提出了一种基于SLA3D打印技术的假肢接受腔制作方法。通过仿真分析软件迭代设计得到承压合理的接受腔模型;通过正逆向混合建模,将光敏树脂接受腔和金属阳四爪连接盘复合。结果表明:3 mm厚的光敏树脂材料符合假肢接受腔的应用要求;切片层厚为0.2 mm时,光敏树脂接受腔和金属阳四爪连接盘的复合效果最佳。用SLA 3D打印假肢接受腔是可行性的。

In order to solve the problems that traditional process of making the prosthetic socket depends on plaster molding,and the metal positive four-claw connecting disc and the prosthetic socket depend on manual processing and connection,a method of making prosthesis socket based on SLA 3D printing technology was proposed.Through the iterative design of simulation analysis software,the socket model with reasonable pressure was obtained.The photosensitive resin socket was combined with the metal positive four-claw connecting disc by the forward and backward hybrid modeling method.The results show that the 3 mm thick photosensitive resin material could meet the application requirements of prosthetic socket.When the slice thickness was 0.2 mm,the composite effect of photosensitive resin socket and metal positive four-claw connecting disc was the best.The feasibility of printing the prosthesis socket with SLA 3D was verified.