基于CT图像和反求技术的个性化解剖型钢板设计

Personalized design for dissection steel plate based on CT picture and reverse engineering

提出了基于CT扫描数据图像,采用反求工程(RE)与计算机辅助设计(CAD),计算机辅助制造(CAM)技术,设计针对不同患者的个性化解剖型钢板的新方法。对于一般非粉碎性骨折情况的个体,完成其骨折部位的三维数字化复合与矫正,进而确定其最佳内固定方案和钢板设计方案,并在CAD中完成钢板的设计工作,实现钢板与复位骨骼的虚拟装配,模拟手术过程。最后对钢板选取适当材料进行数控编程,加工。实验表明:此种钢板具有比标准化钢板更好的贴合性,并且具有良好的强度。该方法也为骨科手术提供了一定的理论参考依据和相应的手术参考模型,同时也为生物力学分析提供了理论模型。

A new method of designing dissection steel plate for different patients is presented it based on CT picture by adopting reverse engineering（RE）,computer-aided design（CAD）and computer-aided manufacturing（CAM）.Specific to individual patient of non-comminuted fracture,a three-dimensional digital restoration and correction of the fracture parts should be completed.Then an optimal internal fixed and plate design program shall be determined and the design of steel plate is completed in CAD software to achieve the virtual assembly of the plate and the restoration parts and simulate the surgical procedures.Finally,appropriate material to be chosen for the steel plate shall be programmed with NC and manufactured,which experimental results show that such plate is better fitting than the standard plate with well strength.This new method provides theoretical reference and operation reference model for orthopedic surgery,at the same time provides a theoretical model for the bio-mechanical analysis.