Finite element analysis of male lower urinary tract based on the collodion slice images.
10.7507/1001-5515.201708008
- Author:
Jingsong ZHOU
1
;
Fang WANG
2
,
3
;
Jianguo ZHANG
2
,
4
;
Lidong ZHAI
5
;
Luan ZHOU
1
;
Kui PAN
1
Author Information
1. College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, P.R.China.
2. College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, P.R.China
3. The Key Laboratory of Integrated Design and On-Line Monitoring of Light Industrial and Food Engineering Machinery and Equipment in Tianjin, Tianjin 300222, P.R.China.fwang@tust.edu.cn.
4. The Key Laboratory of Integrated Design and On-Line Monitoring of Light Industrial and Food Engineering Machinery and Equipment in Tianjin, Tianjin 300222, P.R.China.
5. School of Basic Medicine, Medical University of Tianjin, Tianjin 300070, P.R.China.
- Publication Type:Journal Article
- Keywords:
collodion slice;
finite element;
fluid-structure interaction;
lower urinary tract;
response mechanism
- From:
Journal of Biomedical Engineering
2018;35(4):592-597
- CountryChina
- Language:Chinese
-
Abstract:
Males typically have high rates of morbidity of primary bladder neck obstruction, while the existing urodynamic examination is invasive and more likely to cause false diagnosis. To build a non-invasive biomechanical detecting system for the male lower urinary tract, a finite element model for male lower urinary tract based on the collodion slice images of normal male lower urinary tract was constructed, and the fluid-structure interaction of the lower urinary tract was simulated based on the real urination environment. The finite element model of the lower urinary tract was validated by comparing the clinical experiment data with the simulation result. The stress, flow rate and deformation of the lower urinary tract were analyzed, and the results showed that the Von Mises stress and the wall shear stress at the membrane sphincter in the normal male lower urinary tract model reached a peak, and there was nearly 1 s delay than in the bladder pressure, which helped to validate the model. This paper lays a foundation for further research on the urodynamic response mechanism of the bladder pressure and flow rate of the lower urinary tract obstruction model, which can provide a theoretical basis for the research of non-invasive biomechanical detecting system.
