Automatic diuresis measurement system

Abstract

The integration of electrical engineering, IT, and medical sciences has driven advances in healthcare, especially in the development of reliable electromedical devices. This study proposes an automated system for monitoring diuresis, an essential parameter for managing renal function in ICUs. Manual methods are prone to errors, highlighting the need for automated solutions. The system uses Hall effect transducers and a magnetic buoy/float to measure urinary volume, with real-time data processing and display via a microcontroller. Laboratory tests using different fluids demonstrated accuracy (7.69-10.25%) and precision (8.97-10.25%), meeting the criteria for clinical use, especially in the detection of acute kidney injury by the RIFLE classification. The proposed system is an economical and reliable solution for continuous or discrete monitoring of diuresis, reducing the workload of medical staff and minimizing measurement errors.