侧后路椎间孔镜穿刺定位器的设计与模拟

Design and Simulation of the Puncture Guiding Device for Transforaminal Percutaneous Endoscopic Discectomy

目的:依据投影原理以及多种设计理念设计不同侧后路椎间孔镜定位装置。并通过模拟装配,直观展示这种装置设计理念。方法:1.使用ITK-SNAP等软件通过逆向工程技术建立人体腰椎段的数字模型,并模拟穿刺验证原理;2.以此为依据在UG NX 7.0中采用由顶向下设计侧后路椎间孔镜定位多种装置,利用装配功能观察其最终效果。结果与结论:建立了包含腰椎的人体数字模型两个,依据相同的原理不同的理念设计出3套设计方案,装配观察其结构、尺寸设计合理,达到了预期目的,为后续工作打下良好基础。

Objective: To design various puncture guiding device for transforaminal percutaneous endoscopic discectomy based on the same principle of x-ray projection with Top-Down design technique. And to intuitively display the concept of this device through the three-dimensional assembly simulation aided by computer. Methods: 1.Adopt ITK-SNAP and Meshlab software to reconstructure 3D digital model of the lumbar segment of human body through reverse engineering technology, and simulate the procedure of puncture. 2.Adopt UG NX software to design puncture guiding device based on the reconstructured 3D digital model with Top-Down design technique, and observe the final effect through the three-dimensional assembly simulation. Results and Conclusions: Two sets of 3D digital model were established, which enbodied main anatomy structure of the lumbar segment of human body. Three various sets of design solution which were based on the same principle were established, and the assembly simulation were accomplished. The 3D digital model established is limpid and vivid. The size and concept of design is reasonable.