EasyVoid: A Handheld Coandă Effect Uroflowmeter for Accurate and Portable Measurement of Urinary Flow Dynamics

IF 3.9 3区医学 Q2 ENGINEERING, BIOMEDICAL

IEEE Journal of Translational Engineering in Health and Medicine-Jtehm Pub Date : 2026-01-01 Epub Date: 2026-04-02 DOI:10.1109/JTEHM.2026.3679932

Ray Chang;Yu-Chen Chen;Hao-Wei Chen;Ruei-Hong Zeng;Manu Prakash

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引用次数: 0

Abstract

Objective: Diagnosis of lower urinary tract symptoms (LUTS) often relies on subjective questionnaires, conventional uroflowmetry or invasive urodynamic study, each with inherent limitations.Methods and procedures: This work presents EasyVoid, a novel handheld device that employs the Coandă effect to enable non-invasive and quantitative measurement of urinary flow. EasyVoid uses a passive fluidic mechanism in which the urinary stream adheres to a curved surface and transfers angular momentum to a helical rotor, allowing direct estimation of flow rate and volume without pressure sensors or weighing systems.Results: EasyVoid simultaneously records key voiding parameters, including flow rate, flow pattern, voiding time, and voided volume, with high temporal precision. In controlled bench-top trials using simulated urine events, measurements obtained from EasyVoid showed strong agreement with standard uroflowmetry across multiple flow patterns.Conclusion: These results demonstrate the potential of EasyVoid for portable and quantitative assessment of urinary flow dynamics, offering a promising solution for remote urinary health monitoring.

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EasyVoid：手持式科安德效应尿流仪，用于精确和便携式尿流动力学测量

目的：下尿路症状（LUTS）的诊断通常依赖于主观问卷调查、常规尿流仪或有创尿动力学研究，每种方法都有其固有的局限性。方法和步骤：这项工作提出了EasyVoid，一种新型的手持设备，利用coandi效应来实现无创和定量测量尿流。EasyVoid采用被动流体机制，其中尿流附着在曲面上，并将角动量传递给螺旋转子，无需压力传感器或称重系统即可直接估计流量和体积。结果：EasyVoid同时记录了流速、流型、排尿时间、排尿量等关键排尿参数，具有较高的时间精度。在模拟尿液事件的对照实验中，EasyVoid获得的测量结果与标准尿流仪在多种流型上的测量结果非常一致。结论：这些结果表明EasyVoid在便携式和定量评估尿流动力学方面的潜力，为远程泌尿健康监测提供了一个有前途的解决方案。

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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来源期刊

IEEE Journal of Translational Engineering in Health and Medicine-Jtehm Engineering-Biomedical Engineering

CiteScore

7.40

自引率

2.90%

发文量

审稿时长

27 weeks

期刊介绍： The IEEE Journal of Translational Engineering in Health and Medicine is an open access product that bridges the engineering and clinical worlds, focusing on detailed descriptions of advanced technical solutions to a clinical need along with clinical results and healthcare relevance. The journal provides a platform for state-of-the-art technology directions in the interdisciplinary field of biomedical engineering, embracing engineering, life sciences and medicine. A unique aspect of the journal is its ability to foster a collaboration between physicians and engineers for presenting broad and compelling real world technological and engineering solutions that can be implemented in the interest of improving quality of patient care and treatment outcomes, thereby reducing costs and improving efficiency. The journal provides an active forum for clinical research and relevant state-of the-art technology for members of all the IEEE societies that have an interest in biomedical engineering as well as reaching out directly to physicians and the medical community through the American Medical Association (AMA) and other clinical societies. The scope of the journal includes, but is not limited, to topics on: Medical devices, healthcare delivery systems, global healthcare initiatives, and ICT based services; Technological relevance to healthcare cost reduction; Technology affecting healthcare management, decision-making, and policy; Advanced technical work that is applied to solving specific clinical needs.