Urinal Blood Detection via Optical Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for detecting blood in urine are either time-consuming or inconvenient, as they require manual sampling and analysis, and may involve hygiene issues due to direct contact with the urine sample.
Innovation Solution
A urinal device with a shell, flow pathway, measuring module, and processing unit that uses a light emitting and sensing system to detect oxyhemoglobin in urine without direct contact, providing immediate and reliable results by analyzing the absorption spectrum of the urine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a centrifuge is used to analyze urine samples in a hospital, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent replaces the mechanical centrifuge system with an optical detection system. The light emitting unit and light sensing unit detect oxyhemoglobin in urine through optical absorption without requiring centrifugal separation, eliminating the time-consuming mechanical process while maintaining detection accuracy.
Solution Approach 2:
The patent introduces an optical intermediary (light) to detect urine composition. Instead of mechanically separating and examining urine components, the light beam passes through the urine sample and interacts with oxyhemoglobin, providing rapid detection without mechanical processing.
2Loss of time
If a paper tester is used to detect blood in urine, then loss of time is reduced, but reliability deteriorates due to oxidization and moisture
Solution Approach 1:
The patent replaces the chemical paper tester with an optical detection system. Instead of relying on chemical reactions that are sensitive to oxidation and moisture, the light emitting unit and light sensing unit provide stable, repeatable measurements based on optical absorption properties of oxyhemoglobin.
Solution Approach 2:
The device allows automatic detection without requiring manual intervention. The light beam automatically passes through the urine sample in the flow pathway, and the processing unit automatically analyzes the absorption spectrum to detect blood presence, eliminating human error and ensuring consistent results.
3Loss of time
If a paper tester is used to detect blood in urine, then loss of time is reduced, but object-generated harmful factors increase due to hygiene issues
Solution Approach 1:
The patent introduces light as an intermediary to detect urine composition without direct contact. The light beam passes through the urine sample in the flow pathway, allowing detection of oxyhemoglobin while preventing contact between the operator and the urine sample, thus eliminating hygiene risks.
Solution Approach 2:
The patent replaces the manual dipping operation with an automated optical system. The light emitting unit and light sensing unit, along with the flow pathway design, enable automatic detection without requiring the operator to handle the urine sample, eliminating the hygiene hazard of direct contact.
4Device complexity
If manual sampling and paper testing is performed, then device complexity is reduced, but ease of operation deteriorates due to direct contact requirements
Solution Approach 1:
The patent merges multiple functions into a single integrated device. The shell houses the light emitting unit, light sensing unit, flow pathway, and processing unit, combining sampling, detection, and analysis functions in one compact system that automatically detects blood in urine without requiring separate manual steps.
Solution Approach 2:
The device performs automatic detection without requiring manual sampling or handling. The flow pathway guides urine through the detection zone, and the processing unit automatically analyzes the optical absorption data to determine blood presence, making operation simple and contactless.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables immediate, reliable, and hygienic detection of blood in urine, preventing direct contact with the sample and providing accurate results within seconds, improving upon the limitations of existing methods.
Implementation Method 1
By measuring absorption spectrum of the sample urine through the detection beam, contents of the sample urine are investigated, and whether oxyhemoglobin is present in the sample urine is known
Implementation Method 2
Once reflected by the reflective mirror, the detection beam passes through the lens and shoots into the light sensing unit
Data Source
AI summary
The present invention allows a sample urine to enter an entry hole formed on a shell and to flow through a flow pathway. A part of the sample urine remains in a groove of the flow pathway as collected urine. A measuring module in the shell includes a first side and a second side. The first side includes a light emitting unit and a light sensing unit. The second side includes a lens. The lens is mounted in the groove. The light emitting unit generates a detection beam. The detection beam passes the lens, the collected urine, a reflective mirror, the lens again, and into the light sensing unit. The light sensing unit receives the detection beam and generates a sensing signal. The processing unit generates a detection result signal according to the sensing signal, and a display unit immediately displays a test result of the sample urine.