Study on Morphology Characteristics of 3D-Printing Porous Surgical Implants Using Micro-CT
DONG Shuangpeng1,2, ZHANG Chen1, LI Yuan1, JING Ming1, WANG Ling2, LI Dichen2, KANG Jianfeng2, DONG Enchun2
1. Tianjin Medical Devices Quality Supervision and Testing Center, Tianjin 300384, China;
2. State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an Shaanxi 710049, China
Abstract：Objective To develop a method for morphological characterizing the 3D-printing porous surgical implants.
Methods Micro-CT was employed to get the image data of porous specimen, and MIMICS software was used to analyse the data
and realize 3D reconstruction. The porosity, pore diameter, and strut size of porous structure were analysed using internally tangent
circle, equivalent circle area method, and inscribed sphere method. The result difference between 2D and 3D images was analysed
and compared with the theoretical design parameters, and the results were validated by weight method. Results For regular porous
structure, inscribed sphere method could be used to analyse the pore size. For irregular porous structure, the internally tangent circle
and area of equivalent circle methods could be used. Conclusion Using Micro-CT plus MIMICS software is an effective method for
analysing the morphology characteristics of 3D-printing porous surgical implants.
董双鹏1,2，张晨1，李沅1，景明1，王玲2，李涤尘2，康建峰2，董恩纯2. 3D打印骨科植入物多孔结构Micro-CT形貌分析方法研究[J]. 中国医疗设备, 2020, 35(3): 37-41.
DONG Shuangpeng1,2, ZHANG Chen1, LI Yuan1, JING Ming1, WANG Ling2, LI Dichen2, KANG Jianfeng2, DONG Enchun2. Study on Morphology Characteristics of 3D-Printing Porous Surgical Implants Using Micro-CT. China Medical Devices, 2020, 35(3): 37-41.
