전립선 진단을 위한 수압 측정 방식의 새로운 요 유량 계측기법

Abstract

Uroflowmetry is non-invasive and easily performed to diagnose benign prostate hypertrophy (BPH) frequent in agedmen. Weight change during urination is usualy measured to estimate the urinary flow rate by a load cel, but sensitiveto any impacts against the bottom of the container, leading to unnecessary noise generation. Moreover, load cells arerelatively expensive raising the production cost. The present study proposed a new technique, measuring hydraulic pressureon the bottom of the urine container to evaluate the urinary flow rate. Low cost presure transducer enabled almostperfectly linear relationship between the urine volume and the hydraulic pressure. During both the simulated and humanurination experiment, variance of the presure signal was more than 50 % smaler than the weight signal acquired by aload cell, which demonstrated that the impact noise was decreased to a great degree by pressure compared to weightmeasurement.