摘要
目的:探讨3-7颈椎有限元模型的建立,以期应用于临床实验研究。方法:通过CT扫描、Uni- graphics V18．0软件进行影像边界记录、定标等方法,按照点、线、面、体的顺序重建三维结构,采用CAD数据处理技术,输入相关的材料特性,构建3-7颈椎三维有限元模型。并通过有限元分析验证重建模型的有效性。结果:采用Unigraphics V18．0软件建立3-7颈椎的实体模型并划分单元,并分析了生理载荷下3- 7颈椎不同组成部分的应力分布。结论:为颈椎有限元模型的建立提供了一种简便、准确的方法,为分析和研究各种情况下生物力学表现创造了条件。
Objective： To develop a detailed, three- dimensional, finite element model of a human cervical spine from C3 -C7 and validated against available experimental data for the biomechanical study of the cervical spine. Methods： Reconstructing the skeleton through CT scan, recording the edges of image, calibrating in sequence of point, curve area and volume. Mapped- mesh technique was used to obtain the finite element, adopt finite element commercial software package was used to study the response of the model. Results： The model of cervical spine from C3 - C7 was reconstructed and verified by finite element analysis and the stress distribution of the cervical spine from C3 - C7 was analysed under physical loading. Conclusion： The way in this study is a exact and simple one to establish the finite element model of the cervical spine from C3 - C7. It is possible to analyse and research the biomeehanieal behavior of the cervical spine in various case.
出处
《内蒙古医学杂志》
2005年第12期1073-1076,F0004,共5页
Inner Mongolia Medical Journal
