CAJ | 학술논문

目的应用激光快速成型技术制作骨盆三维光弹生物力学模型.方法通过螺旋CT扫描获取医学图像,制作计算机辅助设计(CAD)模型并存储为STL格式文件,将文件载入激光快速成型机,对Somos 11120光敏树脂通过"分层制造、逐层叠加"的原理制造出三维骨盆实体模型.结果制成的模型均匀透明,表而光滑,无气泡及开裂变形.未加载时在偏振光场种未见折射条纹出现.结论利用激光快速成型技术快速制备骨盆三维光弹生物力学模型,与传统方法比较,可减少制作时间及制作成本.
목적 응용격광쾌속성형기술제작골분삼유광탄생물역학모형.방법 통과라선CT소묘획취의학도상,제작계산궤보조설계(CAD)모형병존저위STL격식문건,장문건재입격광쾌속성형궤,대Somos 11120광민수지통과"분층제조、축층첩가"적원리제조출삼유골분실체모형.결과 제성적모형균균투명,표이광활,무기포급개렬변형.미가재시재편진광장충미견절사조문출현.결론 이용격광쾌속성형기술쾌속제비골분삼유광탄생물역학모형,여전통방법비교,가감소제작시간급제작성본.
Objective To build a three dimensional photoelastic model for pelvic biomechanic experiment with stereolithography technology. Methods Through the spiral CT scan to obtain medical images, we built CAD model and transformed it to the files with the STL format which could be identified by rapid prototyping machine. The data were input into laser rapid prototyping machine. Three-dimensional pelvic model were fabricated by machine in layer-by-layer manufacturing principle with the material of Somos 11120 Photosensitive resin. Results The model was homogeneous and transparent with smooth surface, no bubbles and cracking deformation. There were no stripes in the field of polarized light refraction when not loaded. Conclusion The model was made successfully with stereolithography technology. Compared with traditional methods, this method could greatly shorten production time and reduce the production costs.