Microimager Analysis System Slit Projection for Hemoglobin Detection
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Solution Overview
Problem
Current analyte detection methods for biological fluids, particularly for hemoglobin in blood, face challenges in providing rapid and accurate results, which are crucial for diagnosing and managing conditions related to abnormal hemoglobin levels.
Innovation Solution
A method involving illumination of a sample in a sample chamber with a light source through a slit projection module, followed by detection of light transmitted through the sample and calculation of absorbance at specific wavelengths to assay the sample for hemoglobin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional analyte detection methods are used for hemoglobin in blood, then detection capability is provided, but rapidity and accuracy of results are insufficient
Solution Approach 1:
The optical detection system is segmented into distinct functional modules: light source, slit projection module, sample chamber, objective lens, and detector array. This modular segmentation allows each component to be optimized independently for speed and precision, enabling rapid sequential measurement at multiple wavelengths without compromising accuracy
Solution Approach 2:
The system employs periodic scanning of the sample chamber with the slit projection module, moving the slit across different positions to sequentially illuminate and measure different regions of the sample. This periodic action enables rapid acquisition of spectral data at multiple wavelengths, improving both speed and accuracy of hemoglobin concentration determination
2Productivity
If rapid detection is implemented, then time loss is reduced, but measurement precision may be compromised
Solution Approach 1:
The system performs preliminary calibration by projecting the slit across the sample chamber before actual measurement, establishing baseline optical paths and detecting initial spectral characteristics. This preliminary action prepares the detection system for rapid subsequent measurements without compromising precision, as the optical geometry is pre-optimized
Solution Approach 2:
The system rapidly changes the wavelength parameter by detecting light at multiple discrete wavelengths simultaneously using an array of detectors. This parameter change strategy allows the system to achieve both speed (through parallel wavelength detection) and accuracy (through multi-wavelength spectral analysis for precise hemoglobin concentration determination)
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
This method enables rapid and accurate determination of hemoglobin concentration in blood, facilitating timely diagnosis and management of related conditions.
Implementation Method 1
illuminating a sample in a sample chamber with a light source through a slit projection module, detecting light transmitted through the sample
Implementation Method 2
calculating absorbance of the detected light at one or more wavelengths to assay the sample for the analyte
Data Source
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AI summary
Aspects of the present disclosure include methods and systems for assaying a sample for an analyte. Methods according to certain embodiments include illuminating a sample with a slit-shaped beam of light, detecting light transmitted through the sample, determining absorbance of the transmitted light at one or more wavelengths and calculating concentration of the analyte based on the absorbance to assay the sample for the analyte. Systems for practicing the subject methods are also described.