基于ANSYS的真实软组织物理建模与穿刺仿真

doi:10.3969/j.issn.1000-1565.2015.02.014

河北大学学报(自然科学版) ›› 2015, Vol. 35 ›› Issue (2): 188-192.DOI: 10.3969/j.issn.1000-1565.2015.02.014

• 电子工程与计算机科学 • 上一篇下一篇

基于ANSYS的真实软组织物理建模与穿刺仿真

周宁，杨帆，时亚松，陈飞，王光磊，刘秀玲

河北大学，河北省数字医疗工程重点实验室，河北保定 071002

收稿日期:2014-09-12 修回日期:2014-11-12 出版日期:2015-03-25 发布日期:2015-03-25
通讯作者: 刘秀玲
作者简介:刘秀玲（1977—），女，回族，河北沧州人，河北大学教授，博士，主要从事医学信息智能处理研究.
基金资助:
国家自然科学基金资助项目(61473112,61203160)

Physical modeling and finite element simulation of liver biopsy based on ANSYS

ZHOU Ning,YANG Fan,SHI Ya-song,CHEN Fei,WANG Guang-lei,LIU Xiu-ling

Key Laboratory of Digital Medical Engineering of Hebei Province,College of Electronic and Information Engineering,?Hebei?University, Baoding 071002,China

Received:2014-09-12 Revised:2014-11-12 Online:2015-03-25 Published:2015-03-25
Contact: LIU Xiu-ling

摘要/Abstract

摘要： 为了提高虚拟手术中，手术针穿刺过程的精确性，本文以真实软组织穿刺实验数据及结果为基础，研究采用基于ANSYS完成典型软组织——肝脏的穿刺有限元仿真.由于人体组织的多样性，软组织生物力学特性的复杂性，不均匀性、各向异性、准不可压缩性、非线性-塑性-粘弹性,本文将肝脏软组织抽象为Mooney-Rivlin材料.结合针受力使软组织变形机理，完成了基于MATLAB对实验和仿真的应力应变曲线的拟合，通过拟合曲线的对照可以得出，ANSYS仿真结果和真实数据应力应变曲线趋势基本一致，验证了肝脏穿刺有限元仿真方法的有效性和可行性

关键词: 软组织变形, ANSYS, 动态仿真

Abstract: In order to improve the?accuracy of operation process of?needle?puncture in?virtual?operation ,we complete finite element?simulation?of ?the?typical soft tissue --liver?puncture, based on the?experimental data?and result of ?puncture real?soft tissue. Because of?the diversity?of human tissue, and the complexity of?the biomechanical properties from?soft tissues, according to the comprehensive?consideration of the material and the?mechanical properties of the soft?tissue, in this paper, we abstracted the?liver parenchyma as Mooney-Rivlin?materials, combining with deformation mechanism of ?soft tissue by stress, complete contrasting between real experiment?and simulation?based on MATLAB. It can be seen in the comparison of the curve, stress-strain curve from simulation results by ANSYS is similar with the?real data. It verify ?the effectiveness and ?the feasibility for liver puncture experiment by finite element simulation.

Key words: soft-tissue deformation, ANSYS, dynamic simulation

中图分类号:

TP399

周宁，杨帆，时亚松，陈飞，王光磊，刘秀玲. 基于ANSYS的真实软组织物理建模与穿刺仿真[J]. 河北大学学报(自然科学版), 2015, 35(2): 188-192.

ZHOU Ning,YANG Fan,SHI Ya-song,CHEN Fei,WANG Guang-lei,LIU Xiu-ling. Physical modeling and finite element simulation of liver biopsy based on ANSYS[J]. Journal of Hebei University (Natural Science Edition), 2015, 35(2): 188-192.

参考文献

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基于ANSYS的真实软组织物理建模与穿刺仿真

Physical modeling and finite element simulation of liver biopsy based on ANSYS

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