[1]柯敏辉,叶 玲,陈立武,等.不同受力方向条件下兔直肠黏膜位移量的有限元模拟分析[J].中国医学物理学杂志,2015,32(06):781-784.[doi:doi:10.3969/j.issn.1005-202X.2015.06.005]
　KE Min-hui,YE Ling,CHEN Li-wu,et al.Finite element simulation analysis in the mucosa displacement of the rabbit’s rectum under different stress direction[J].Chinese Journal of Medical Physics,2015,32(06):781-784.[doi:doi:10.3969/j.issn.1005-202X.2015.06.005]
点击复制

不同受力方向条件下兔直肠黏膜位移量的有限元模拟分析()
分享到：

《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
32卷
期数:
2015年06期
页码:
781-784
栏目:
其他（激光医学等）
出版日期:
2015-11-25

文章信息/Info

Title:
Finite element simulation analysis in the mucosa displacement of the rabbit’s rectum under different stress direction
文章编号:
1005-202X（2015）06-0781-04
作者:
柯敏辉1; 叶 玲1; 陈立武1; 牛素生2; 郑鸣霄1; 张之玺3
1福建中医药大学附属第二人民医院肛肠科，福建 福州 350003；2福建中医药大学骨伤学院，福建 福州 350122；3福州大学光弹实验室，福建 福州 350108
Author(s):
KE Min-hui1;  YE Ling1;  CHEN Li-wu1;  NIU Su-sheng2;  ZHENG Ming-xiao1;  ZHANG Zhi-xi3
1Department of Anorectal Medicine, Second Peoples Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China; 2Fractures Colleage, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; 3Photoelastic Laboratory, Fuzhou University, Fuzhou 350108, China
关键词:
直肠' target="_blank" rel="external"> FONT-FAMILY: 宋体">直肠; 黏膜; 位移量; 有限元; 受力方向; 节点; 模拟分析
Keywords:
rectum;  mucosa;  displacement;  finite element;  stress direction;  node;  simulation analysis
分类号:
R318.01
DOI:
doi:10.3969/j.issn.1005-202X.2015.06.005
文献标志码:
A
摘要:
目的：观测受力方向对兔直肠黏膜位移量的影响。 方法：通过测算IRP兔直肠黏膜层与黏膜下层的力学指标建立IRP兔肛门直肠有限元模型，模拟在直肠黏膜上施加大小相同方向不同的两种力（一种力垂直向下，一种力平行于直肠黏膜方向），以黏膜脱垂相对明显层面的不同节点为观测对象，计算两种力作用下的节点位移量。 结果：测得兔直肠黏膜与黏膜下层的杨氏弹性模量为（4.0888±0.1615） Mpa、泊松比为0.4700±0.0050、剪切弹性模量为（1.3909±0.0595） Mpa。将数据输入兔肛门直肠有限元模型后，测算得两种力在兔直肠腹侧848与850节点的黏膜位移量无显著性差异（P>0.1），但在直肠中间位852节点、背侧的854与856节点存在显著性差异（P<0.05）。 结论：受力方向影响兔直肠黏膜位移量，提示黏膜受力方向的差异可能影响排便。
Abstract:
Objective To observe the influence of the mucosa displacement of the rabbit’s rectum under different stress direction. Methods We established the IRP rabbit anorectal finite element model by measuring the mechanics index of the IRP rabbit’s rectum mucosa and submucosa, and simulated on the rectal mucous under the different direction but same size of force, one force was vertical downward, the other was parallel to the direction of the rectal mucous. The observation object was the nodes which were relatively obvious level in the rectal prolapse mucous. We computed the node displacement. Results The young’s modulus of elasticity of the rabbit’s rectum mucosa and submucosa was (4.0888±0.1615) Mpa, the poisson’s ratio 0.4700±0.0050, the shear modulus of elasticity (1.3909±0.0595) Mpa. We inputted these data into the finite element model of the rabbit’s anorectum, then compared the two kinds of force. We found that there was no significant difference in the rectal ventral node (node 848 and 850) displacement (P>0.1), but there was significant difference in the rectal middle node (node 852) and dorsal node (node 854 and 856) displacement (P<0.05). Conclusion The stress direction affect the mucosa displacement. The different stress direction may affect the bowel movement

参考文献/References:

[1] Erdemir A, Guess TM, Halloran J, et al. Considerations for reporting finite element analysis studies in biomechanics[J]. J Biomech, 2012, 45(4): 625-633.
[2] Mousavi SR, Khalaji I, Sadeghi NA, et al. Statistical finite element method for real-time tissue mechanics analysis[J]. Comput Methods Biomech Biomed Engin, 2012, 15(6): 595-608.
[3] 王荣洁, 曾融生, 朱 凯. 应用有限元法预测正颌术后三维软组织形变的初步探讨[J]. 中国口腔颌面外科杂志, 2012, 10: 90-95.
Wang RJ, Zeng RS, Zhu K, et al. A pilot study of three-dimensional soft tissue predictionafter orthognathic surgery by finite-element method[J]. China Journal of Oral and Maxillofacial Surgery, 2012, 10(2): 90-95.
[4] 柯敏辉, 叶 玲, 陈立武, 等. 兔直肠黏膜内脱垂模型的建立[J]. 世界中医药, 2013, 8: 1458-1460.
Ke MH, Ye L, Chen LW, et al. The animal model of internal rectal prolapse in rabbits[J]. World Chinese Medicine, 2013, 8(12): 1458-1460.
[5] 中华中医药学会. 中医肛肠科常见病诊疗指南[M].: 中国中医药出版社,2012: 330China Association of Chinese Medicine. Anorectal diseases of TCM diagnosis and treatment guidelines[M] . Beijing: China press of traditional Chinese medicine, 2012: 330.
[6] 武忠弼, 杨光华. 中华外科病理学[M]. 北京: 人民卫生出版社, 2002: 765Wu ZB, Yang GH. The surgical pathology[M]. Beijing: People’s Medical Publishing House, 2002: 765.
[7] 柯敏辉, 叶 玲, 陈立武, 等. 兔肛门直肠三维有限元模型的建立[J]. 世界华人消化杂志, 2013, 21(25): 2585-2589Ke MH, Ye L, Chen LU, et al. Establishment of a 3D finite element model of the rabbit anorectum[J]. World Chinese Journal of Digestology, 2013, 21(25): 2585-2589.
[8] Martins JA, Pato MP, Pires EB. Finite element studies of the deformation of the pelvic floor[J]. Ann N Y Acad Sci, 2007, 101(5): 316-318.
[9] 宋红芳, 雷玲玲, 黄 跃等. 基于磁共振图像的女性盆底组织三维几何重建[J]. 中华妇幼临床医学杂志, 2012, 8(4): 348-349Song HF, Lei LL, Huang Y, et al. Three-dimensional reconstruction of feminine pelvic floor structure based on magnetic resonance imaging[J]. Chinese Journal of Obstetrics ＆ Gynecology and Pediatrics, 2012, 8(4): 348-349[10] Bush M, Petros P, Swash M, et al. Defecation 2: Internal anorectal resistance is a critical factor in defecatory disorders[J]. Tech Coloproctol, 2012, 16(6): 445-450.
[11] 孙 源, 周 奇, 王志刚. 有限元方法分析直肠电极在直肠角的生物电学效应[J]. 重庆理工大学学报自然科学版2013, 27(12): 101-105.
Sun Y, Zhou Q, Wang ZG. Finite element analysis of bio-electricity effects of rectal probe in anorectal angle[J]. Journal of Chongqing Institute of Technology: Natural Science ed., 2013, 27(12): 101-105.
[12] 刘守尧, 王云亭, 蔡蓉蓉等. 家兔腓肠肌拉伸试验设备和夹具的选择[J]. 中日友好医院学报, 2014, 28(2): 110-112Liu SY, Wang YT, Cai RR, et al. Rabbits gastrocnemius tension test equipment and fixture choosen[J]. Journal of China-Japan Friendship Hospital, 2014, 28(2): 110-112.
[13] 彭传刚, 杨 琦, 李 鹏等. 青年与老年人脊柱黄韧带的力学特性[J]. 中国老年学杂志, 2013, 33(9): 4455-4456Peng CG, Yang Q, Li P, et al. The mechanical properties of young and the elderly spine yellow ligament[J]. Chinese Journal of Gerontology, 2013, 33(9): 4455-4456.
[14] 赵奕李, 李新颖, 李 鹏等. 人脊柱棘间韧带与黄韧带应力松弛实验的研究[J]. 生物医学工程研究, 2014, 33(3): 162-165Zhao YL, Li XY, Li P, et al. The experimental study on stress relaxation of human spinal interspinous ligaments and ligamentum flavum[J]. Journal of Biomedical Engineering Research, 2014, 33(3): 162-165.
[15] 冯元桢. 生物力学[M]. 北京: 科学出版社1983: 83-100.

备注/Memo

备注/Memo:
【收稿日期】2015-05-16 【基金项目】国家自然科学基金（81173272）；福建省自然科学基金 （2015J01402） 【作者简介】柯敏辉（1981-），男，硕士，主治医师，主要从事肛门直肠 疾病的临床研究。E-mail: 48330132@qq.com。 【通信作者】叶玲（1957-），女，主任医师。E-mail: yeling0223@163. com。
更新日期/Last Update: 2015-06-18