Construction and Simulation Analysis of 3D Model Based on Bladder

Jiewen Deng, P. Ran, Y. Mao, Jingwen Wang
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Abstract

For people with urinary incontinence who cannot control bladder urination freely, the principle of electrical impedance imaging was used to simulate the bladder state to select the electrode array method and excitation method suitable for bladder filling detection. In this paper, a three-dimensional human abdominal model including pelvis and bladder was constructed. The bladder filling degree is simulated by setting different bladder radii separately, and the electrodes are arranged on the surface of the model. The model designed in this paper is a common hierarchical array model and a rectangular array model based on bladder position design. The excitation, current of 5 mA is used to simulate the relative, interphase and adjacent excitation of two different electrode array models. Through the analysis of parameter voltage sensitivity and dynamic range, the evaluation of two-electrode array mode and three-electrode excitation was finally realized. The experimental results show that the rectangular array method and interphase excitation have more application value in bladder filling detection, which can more effectively obtain the voltage change caused by bladder volume change, which provides a basis for the design of bladder filling detection system.
基于膀胱的三维模型构建与仿真分析
针对不能控制膀胱自由排尿的尿失禁患者,利用电阻抗成像原理模拟膀胱状态,选择适合膀胱充盈检测的电极阵列法和激励法。本文建立了包括骨盆和膀胱在内的人体腹部三维模型。通过分别设置不同的膀胱半径来模拟膀胱填充度,电极设置在模型表面。本文设计的模型是一种常见的分层阵列模型和基于膀胱位置设计的矩形阵列模型。采用5ma的激励电流对两种不同电极阵列模型的相对激励、相间激励和相邻激励进行了仿真。通过对参数电压灵敏度和动态范围的分析,最终实现了对双电极阵列方式和三电极激励方式的评价。实验结果表明,矩形阵列法和相间激励法在膀胱充液检测中更有应用价值,能更有效地获取膀胱容积变化引起的电压变化,为膀胱充液检测系统的设计提供了依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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