颈椎三维有限元模型的建立  

Establishment of a three-dimensional finite element model for the cervical spine

作　　者：薄雪峰[1] 陈赞[2] 王辉[1] 钱秀清[1] 黄菊英[1] 张昆亚[1] 宋红芳[1] 刘志成[1] 

机构地区：[1]首都医科大学生物医学工程学院,北京100069 [2]首都医科大学宣武医院,北京100053

出　　处：《北京生物医学工程》2014年第5期452-455,501,共5页Beijing Biomedical Engineering

基　　金：国家自然科学基金(10802053);北京市自然科学基金(3122010);北京市属市管高校人才强教计划资助项目(PHR201110506);北京市人才强教深化计划-中青年骨干人才培养计划;北京市科技新星培养计划(2007A076);首都医科大学基础临床科研合作基金(1000172005)资助

摘　　要：目的 建立颈椎（C2～ C7）三维有限元模型。方法 根据1名既往无颈椎病史健康成年男性志愿者的颈椎断层CT扫描序列图像,采用Mimics1 3.1、SolidWorks2012软件进行三维重建和造型,利用ANSYS14.0软件,采用四面体网格划分方法,对颈椎及周围组织赋予不同的材料属性,建立颈椎（C2 ～C7）三维有限元模型。结果 本研究成功建立了6个椎体运动节段的三维有限元模型,模型高度模拟颈椎结构与材料特性,单元划分精细。在建立的模型上加载模拟脊柱的前屈、后伸、左右侧曲、左右旋转6种工况下的生理活动,所获得的理论分析结果与参考文献的报道一致。结论 建立的颈椎三维有限元模型可进行颈椎生物力学研究。Objective To establish a three-dimensional finite element model of the cervical spine （C2-C7）.Methods A three dimensional finite element model of the cervical spine was established from the CT scan images of a healthy male with Mimics13.1,SolidWorks2012,and ANSYS14.0 software.Different material was assigned different mechanical parameter,and we created a cervical three-dimensional finite element model based on the method of tetrahedral mesh.Results The three dimensional finite element model with more structure integrity and geometric similarity was compartmentalized subtly.After setting the boundary,as the established model in flexion,extension,left and right lateral bending,left and right rotation,theoretical analysis results and data were highly consistent with related literature in biomechanics.Conclusions The three-dimensional finite element model of the cervical spine can be used in biomechanics study of cervical spine.

关 键 词：颈椎 三维重建 有限元模型 

分 类 号：R318.04[医药卫生—生物医学工程]