PROBLEM TO BE SOLVED: To obtain the accurate amount of urine even with respect to urine having any specific gravity without exerting the effect of the specific gravity difference of urine on the measured value of a stagnant water pressure measuring means.SOLUTION: In this urination data measuring instrument having a toilet stool equipped with a bowl receiving urine discharged by a user in a stagnant water formed state, the stagnant water pressure measuring means for measuring the water pressure produced by stagnant water as stagnant water pressure, a urine amount calculation means for calculating the volume of discharged urine as the amount of urine by adapting a preliminarily calculated relational expression of the amount of stagnant water and the pressure of stagnant water to a change in the pressure of stagnant water measured by the stagnant water pressure measuring means accompanied by discharge, the stagnant water pressure measuring means measures the water pressure produced at a predetermined position higher than the bottom part of the inner surface of the bowl by predetermined quantity when discharging as the stagnant water pressure.COPYRIGHT: (C)2011,JPO&INPIT【課題】 溜水圧計測手段の計測値が尿の比重差の影響を受けずに、どのような比重の尿に対しても正確な尿量を得ることを可能することである。【解決手段】 溜水が形成された状態で使用者が排泄する排尿を受けるボウルを備えた便器と、前記溜水によって生じる水圧を溜水圧として計測する溜水圧計測手段と、排泄に伴って前記溜水圧計測手段によって計測される前記溜水圧の変化に予め求められている溜水量と溜水圧との関係式を適用することによって、排泄された前記排尿の体積を尿量として求める尿量算出手段と、を有する排尿情報測定装置において、前記水圧計測手段は、排泄時に前記ボール内面の底部より所定量だけ高い所定位置に生じる水圧を前記溜水圧として計測する。【選択図】 図1
