Development of a Transportable Gravimetric Uroflowmeter for Standing Urination

抄録

Uroflowmetry is necessary for patients with voiding disturbance. It is desirable to achieve uroflowmetry in a natural position in a familiar environment. We developed a uroflowmeter based on weight loss during standing urination. In the previous research, the system employed a PC for the measurement. However, there were problems of portability and installation in the feasibility study. In this study, we developed a system that wirelessly connects the weight scale to a small microcomputer and records weight changes. To evaluate the developed system, pseudo-urination was performed with a urine flow rate in the range of 5-50 ml/s. Resulting showed that urinary flow patterns measured by this system follow that measured by a medical uroflowmeter. The maximum urinary flow rate measured by this system agreed with that measured by the medical uroflowmeter within 10% error. This study was supported in part by JSPS KAKENHI Grant Number JP19K09667, Japan.