狐、猪、羊眼外肌被动力学行为的比较  

Passive mechanical behaviors of mammal extraocular muscles: a comparison among fox, pig and sheep

作　　者：白雅嘉 高志鹏[1] 陈维毅[1] Bai Ya-jia;Gao Zhi-peng;Chen Wei-yi(Institute for Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi Province, China)

机构地区：[1]太原理工大学应用力学与生物医学工程研究所,山西省太原市030024

出　　处：《中国组织工程研究》2017年第36期5824-5829,共6页Chinese Journal of Tissue Engineering Research

基　　金：国家自然科学基金项目(11032008)~~

摘　　要：背景:眼外肌控制眼球的运动,其力学行为是研究眼球运动必不可少的考虑因素。目的:分析不同眼位哺乳动物的眼外肌力学性能的异同。方法:采用体外实验的方法,在实验室环境下利用Instron5544材料性能试验机,对狐、猪和羊3种哺乳动物的眼外肌试件进行了相同载荷水平的单轴拉伸实验,并拟合实验数据得到了各眼外肌的Ogden超弹性模型。统计学分析比较实验得到的这3种不同动物眼外肌的被动力学行为。结果与结论:(1)3类眼外肌拉伸实验载荷-应变由大至小依次为狐>羊>猪;(2)3类眼外肌各自的拟合曲线均与其相应的平均实验数据拟合较好;(3)这3种不同眼位的哺乳动物的眼外肌之间在被动力学行为(包括相同应变水平下的应力响应以及超弹性力学参数方面)存在一定的统计学差异。BACKGROUND:The extraocular muscles control the movement of the eyeball,and its biomechanics is essential for studying eye movement.OBJECTIVE:To determine the differences in mechanical properties of the extraocular muscles in different mammals.METHODS:This was an in vitro study.The extraocular muscles were extracted from foxes,pigs and sheep,and then we used an Instron5544tester to perform uniaxial experiments under the same load.Ogden hyperelastic models of each animal extraocular muscle were obtained based on the experimental data,and the passive mechanical behaviors of the extraocular muscle were compared statistically among different animals.RESULTS AND CONCLUSION:The order of load-strain values was as follows:fox>sheep>pig.The fitted curve of each animal extraocular muscle was well in accordance with the mean data.There were significant differences in the passive mechanical behaviors of extraocular muscles among mammals,including hyperelastic parameters and stress response at the same load level.

关 键 词：组织构建 组织工程 哺乳动物 眼外肌 单轴拉伸实验 被动力学行为 国家自然科学基金 

分 类 号：R318[医药卫生—生物医学工程]