3D Cohesive Finite Element Minimum Invasive Surgery Simulation Based on Kelvin‑Voigt Model  

作　　者：Yonghang Jiang Qinghua Song Xichun Luo 

机构地区：[1]Centre for Precision Manufacturing,Department of Design Manufacturing&Engineering Management,University of Strathclyde,Glasgow G11XJ,UK [2]Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ministry of Education,School of Mechanical Engineering,Shandong University,Jinan 250013,China

出　　处：《Chinese Journal of Mechanical Engineering》2022年第3期161-173,共13页中国机械工程学报（英文版）

基　　金：Natural Science Foundation of Shandong Province(Grant No.ZR2019JQ19);Interdisciplinary Research Project of Shandong University(Grant No.2017JC027);China Scholarship Council(CSC).

摘　　要：Minimally invasive surgery is an important technique used for cytopathological examination.Recently,multiple studies have been conducted on a three-dimensional(3D)puncture simulation model as it can reveal the internal deformation state of the tissue at the micro level.In this study,a viscoelastic constitutive equation suitable for muscle tissue was derived.Additionally,a method was developed to define the fracture characteristics of muscle tissue material during the simulation process.The fracture of the muscle tissue in contact with the puncture needle was simulated using the cohesive zone model and a 3D puncture finite element model was established to analyze the deformation of the muscle tissue.The stress nephogram and reaction force under different parameters were compared and analyzed to study the deformation of the biological soft tissue and guide the actual operation process and reduce pain.

关 键 词：Minimally invasive surgery Constitutive model 3D simulation Cohesive zone model 

分 类 号：R318[医药卫生—生物医学工程] TB115[医药卫生—基础医学]