摘要
膝关节置换后,要求患肢达到负重、伸屈及旋转活动,稳定性好,这就要求假体的几何形状要与人体相匹配并使其植入后与人体运动规律相一致,才能使假体与周围保留的软组织协调运动,这一切都得依赖于精确的膝关节假体设计与制造。文章利用三维镭射扫描和计算机辅助设计技术对人膝关节进行扫描并对所输出的点云数据进行处理,利用逆向工程软件Geomagic和计算机辅助设计软件UG进行膝关节三维实体模型重建,得到了非常精确的膝关节三维模型。为人体复杂的各类骨关节的三维设计提供了一种新的思路。
After knee joint replacement, the artificial joint should bear the weight of the body, furthermore, when it is flexing or whirling, it must be flexible and have a good stability. To make a coordinated movement between the joint prosthesis and the retained soft tissue, the geometry of joint prosthesis must match human body. Therefore accuracy design and manufacture of knee prosthesis is important. In this article, 3D laser scanning and computerized design technique were used to scan human knee and to process the point cloud data output from it. The engineering software such as Geomagic and UG are used to reconstruct 3D solid model of the knee to obtain a very accurate three-dimensional model. This engineering software provides a new thought for 3D design of various complex bone and joint in human body.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2008年第35期6831-6834,共4页
Journal of Clinical Rehabilitative Tissue Engineering Research
