System and method for measuring urine specific gravity on basis of fiber optic sensor

Abstract

The invention discloses a system for measuring urine specific gravity on the basis of a fiber optic sensor, relates to the field of urine monitoring and aims to solve the problem that the conventional technology focuses on single measurement of the urine specific gravity. The system comprises a collecting unit, a signal processing unit, a main control computer, urine channels, a urine catheter, a urine catheter control valve for controlling connection and disconnection of the urine catheter, a cleaning channel as well as a cleaning control valve for controlling connection and disconnection of the cleaning channel, wherein the urine channels comprise a first urine channel, a second urine channel and a third urine channel, the first urine channel and the third urine channel are communicated through the second urine channel and form a drain chamber, and the second urine channel is higher than the first urine channel. The system is based on non-contact measurement, and the fault detection rate is increased. The urine specific gravity is monitored continuously and dynamically. The invention further discloses a method for measuring the urine specific gravity on the basis of the fiber optic sensor.

Description

technical field [0001] The invention relates to the field of urine monitoring, in particular to a urine specific gravity measurement system and a measurement method based on an optical fiber sensor for continuously monitoring changes in urine specific gravity. Background technique [0002] Urine specific gravity (also known as urine specific density) reflects the content of solutes in unit volume of urine, and its level is determined by the concentration of metabolites and other components in urine. The lower the specific gravity. The urine specific gravity of normal adults is mostly between 1.015 and 1.025 ("Analysis of Difficult Problems in Nephrology"). [0003] Urine specific gravity is used to estimate the concentrating function of the kidneys. Concentrating urine is one of the most important functions of the kidneys. High specific gravity urine with a specific gravity greater than 1.020 indicates renal insufficiency, but the kidneys are still good, which means prere...

AI Technical Summary

Problems solved by technology

Among them, the test strip method is easy to operate but the accuracy is not high (±0.005~±0.001), which is one of the commonly used methods at present. The urine dry chemical method analyzer can be used to determine the specific gravity of urine, which belongs to the test strip method and is a An automatic or semi-automatic urine specific gravity determination method; the refractometer method is an optical method, and the operation is relatively troublesome, and is mainly used in district and county hospitals; Up to ±0.001~±0.0001), but it is more troublesome to operate, and it is mainly used for scientific research and experiments, etc.

Images