电子束选区熔化成形技术医疗植入体的优化设计及应用

摘要

主要介绍电子束选区熔化成形技术(EBM)及其制备生物医疗用假体的工艺流程,并基于该技术的工艺特点,着重介绍EBM医疗植入假体的模型优化设计,包括模型的生成及设计方法、多孔结构的创建方法以及最终生物医疗用假体模型的优化设计.通过假体模型的优化设计,提高3D打印成形质量,优化假体结构,发挥3D打印的优势,实现假体轻量化、与自体骨高度融合的目标,并借助实际应用案例分析了EBM医疗植入体模型设计的重点及注意事项.最后简单阐述EBM在制备生物医疗假体中存在的不足,并展望未来的发展趋势.%We introduce the process of electron beam melting (EBM) and the preparation for biomedical prosthesis, and highlight the model optimization design of medical implant prosthesis based on EBM technique, including the generation and design of models, the creation of porous structures and the optimal design of the final model. Through the optimization design of the prosthesis model, the quality of three-dimensional printing is improved and the prosthesis structure is optimized. Moreover, we can use the advantages of three-dimensional printing to achieve the lightweight of prosthesis and high fusion with bone. Some application cases are also presented to analyze the focuses and precautions of medical implant model design. Finally, the shortcomings of EBM technique in the preparation of biomedical prosthesis are briefly described, and the future development trend is prospected.