Dynamics analysis of bladder-urethra system based on CFD

被引：14

作者：

Jin Q. ^{[1
]}

Zhang X. ^{[1
]}

Li X. ^{[1
]}

Wang J. ^{[2
]}

机构：

[1] School of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology

[2] Department of Obstetrics and Gynecology, Peking University People's Hospital

来源：

Frontiers of Mechanical Engineering in China | 2010年 / 5卷 / 3期

关键词：

Bladder-urethra system; Computational fluid dynamics (CFD); Stress urinary incontinence (SUI); Urodynamics;

D O I：

10.1007/s11465-010-0027-8

中图分类号：

学科分类号：

摘要：

A mathematical model for a bladder-urethra system can provide basic analysis for the disabled urethra closure of stress urinary incontinence (SUI) patients in a clinic. Based on computational fluid dynamics (CFD), we developed a three-dimensional urodynamic bladder-urethra system, which includes bladder, bladder neck, prostate, and urethra. The realistic recirculation process of the urinary bladder during the physiologic voiding process in conjunction with a flow simulation through the female urinary bladder and urethra is presented. The computational results show that a dead-water zone and the zone of secondary flow occur, independent of the shape of the prostatic urethra. For the pathological prostata, the extreme constriction of the prostatic urethra results in an additional wide-stretched dead-water zone. The simulation results does not only improve urinary incontinence surgery for clinicians, but can also provide a basis for theoretical analysis. © 2010 Higher Education Press and Springer-Verlag Berlin Heidelberg.

引用

页码：336 / 340

页数：4

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