东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (3): 423-428.DOI: 10.12068/j.issn.1005-3026.2014.03.027

• 机械工程 • 上一篇    下一篇

基于ABAQUS的下颌骨生物力学分析

陈亚东1，马国强1，尚德浩2，王宛山1   

  1. (1. 东北大学 机械工程与自动化学院， 辽宁 沈阳110819； 2. 中国医科大学 口腔医学院， 辽宁 沈阳110002)
  • 收稿日期:2013-04-22 修回日期:2013-04-22 出版日期:2014-03-15 发布日期:2013-11-22
  • 通讯作者: 陈亚东
  • 作者简介:陈亚东(1985-)，男，内蒙古赤峰人，东北大学博士研究生；王宛山(1946-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    教育部高等学校博士学科点专项科研基金资助项目(20100042110003)；中央高校基本科研业务费专项资金资助项目(N100703002)；辽宁省科学技术计划项目(2012225090)；沈阳市科学技术计划项目(F12-227-1-18).

Biomechanical Analysis of Mandible Based on ABAQUS

CHEN Yadong1， MA Guoqiang1， SHANG Dehao2， WANG Wanshan1   

  1. 1School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China. 2Hospital of Storatology，China Medical University， Shenyang 110002， China.
  • Received:2013-04-22 Revised:2013-04-22 Online:2014-03-15 Published:2013-11-22
  • Contact: CHEN Yadong
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摘要： 为解决游离腓骨瓣修复下颌骨缺损手术存在个体匹配差的问题，采用定制化修复钛板设计和制造方法.通过采集分析病人CT数据，利用可视化和CAD技术设计出符合病人生理结构的修复体模型.建立下颌骨的有限元模型，对比了修复前后的下颌骨的应力情况.利用快速原型技术制造出树脂模型用于手术指导，通过临床研究，该方法节省手术时间，提高手术成功率.下颌骨有限元分析结果表明:下颌骨应力集中区域主要分布于踝突区、下颌角、下颌骨修复处.随着加载力的增大，应力增加明显，特别是下颌骨修复处与踝突区应力分布增长明显.最大应力出现在下颌骨与腓骨的结合处，修复后的下颌骨高应力区泛化的现象得到明显的遏制，应力集中区域明显地减少.

关键词: 快速原型, 计算机辅助设计, 下颌骨重建, 个性化设计, 有限元分析

Abstract: In order to improve the individual matching of free fibula flap for mandible defect reconstruction， a custommade titanium plate design and manufacture were presented. The visualization and CAD were adopted to design the repair model with biomimetic shape by CT data. A finite element model of the mandible was created. The stress of the mandible before and after repair was compared with each other. Rapid prototyping was employed to build the resin mold， which can save the surgery time and improve the success rate. The mandible finite element analysis results show that the mandible stress concentration area was broadly distributed in mandible ankle protrusion area， mandibular angle，and the mandible repair. With increase of the loading force， stress increased significantly， especially in mandible ankle protrusion area and the mandible repair. The maximum stress appeared at the junction of the mandible and fibula. The high stress generalization of the repaired mandible was checked. Areas of stress concentration decreased significantly.

Key words: rapid prototyping, computer aided design(CAD), mandible reconstruction, customized design, finite element analysis

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