Biological Component Measuring Apparatus Depth Correction
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Solution Overview
Problem
Invasive methods for measuring triglyceride levels in the body are painful and difficult to regularly monitor, while non-invasive techniques using scattered light face challenges in accurately determining biological components due to variations in blood vessel depth and scattering coefficients.
Innovation Solution
A biological component measuring apparatus that emits light of different wavelengths, detects scattered light, and uses a processor to determine scattering coefficients and blood vessel depth information, correcting measurements to account for external factors and improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive methods are used to measure triglyceride levels, then measurement accuracy is improved, but patient comfort and ease of operation deteriorate due to pain
Solution Approach 1:
The patent replaces the mechanical/invasive blood sampling system with an optical measurement system. Light sources emit light through the skin to blood vessels containing triglycerides, and detectors measure the optical properties of the blood without breaking the skin, thereby eliminating pain while maintaining measurement capability
Solution Approach 2:
The patent introduces light as an intermediary medium to indirectly measure triglyceride levels. Instead of directly sampling blood, the system uses light transmission and scattering properties as a mediator to obtain triglyceride concentration information non-invasively
2Ease of operation
If non-invasive light scattering methods are used, then patient comfort is improved, but measurement precision deteriorates due to variations in blood vessel depth and scattering coefficients
Solution Approach 1:
The patent changes multiple parameters including using light sources with different wavelengths to probe different depths, varying detector positions to capture scattered light from different angles, and adjusting measurement parameters based on detected blood vessel depth information to compensate for anatomical variations
Solution Approach 2:
The patent implements a feedback mechanism where the system first detects blood vessel depth information, then uses this information to correct the scattering coefficient measurements. This feedback loop allows the system to adapt to individual anatomical differences and maintain measurement precision across varying blood vessel depths
3Measurement precision
If multiple light sources and detectors are added to improve measurement accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent designs the apparatus where light sources serve multiple functions: they both illuminate the tissue for scattering measurements and provide the optical excitation needed for depth detection. The detector array similarly performs both scattering coefficient measurement and blood vessel depth detection, reducing the need for separate dedicated components
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 accurate, non-invasive measurement of biological components like triglycerides by correcting scattering coefficients based on blood vessel depth, reducing measurement errors and ensuring reliability across varying conditions.
Implementation Method 1
measuring, by a detector, an intensity of scattered light, which is scattered from the skin after being emitted thereto
Data Source
AI summary
A biological component measuring apparatus may include: a first light source configured to emit a first light of a first wavelength range onto an object; a second light source configured to emit a second light of a second wavelength range onto the object, the second wavelength range being different from the first wavelength range; a detector configured to detect the first light and the second light which are scattered from the object; and a processor configured to determine a scattering coefficient based on the detected first light, obtain blood vessel depth information based on the detected second light, and measure a biological component by correcting the scattering coefficient based on the blood vessel depth information.