Optical Triglyceride Measurement Using Multi-Distance Light Sensing
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Solution Overview
Problem
Existing methods for measuring triglyceride levels are invasive, causing pain and infection risk, and non-invasive methods lack accuracy and reliability.
Innovation Solution
A non-invasive apparatus using a sensor with peripheral and central light sources and detectors to measure optical signals, employing a processor to calculate triglyceride levels based on effective attenuation coefficients and augmentation indexes, and providing health guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If invasive blood sampling method is used to measure triglyceride levels, then measurement reliability is improved, but user comfort deteriorates due to pain and infection risk
Solution Approach 1:
The patent replaces the mechanical invasive blood sampling system with an optical measurement system. Light sources emit light that penetrates the skin to interact with blood vessels, and detectors capture the optical signals. This substitution eliminates needles and blood contact while measuring triglyceride levels through optical properties of blood, thereby maintaining measurement reliability while removing pain and infection risks.
Solution Approach 2:
The patent introduces optical signals as an intermediary between the measurement system and the blood. Instead of directly contacting blood with needles, the system uses light as a mediator to probe the blood's optical properties. The light interacts with the blood vessels and tissues, carrying information about triglyceride levels back to the detectors without requiring direct blood sampling.
2Ease of operation
If non-invasive optical measurement method is used to measure triglyceride levels, then user comfort is improved, but measurement precision deteriorates
Solution Approach 1:
The patent divides the optical measurement system into multiple segments: multiple light sources at different positions, multiple detectors at different distances, and different wavelength channels. Each segment captures specific optical information, and the processor integrates these segmented measurements to calculate triglyceride levels. This segmentation allows the system to extract multiple features from the optical signals, improving measurement precision while maintaining non-invasive operation.
Solution Approach 2:
The patent measures optical signals at multiple spatial dimensions - different distances from the skin surface and different angular positions. By collecting data across these dimensional variations, the system captures comprehensive optical properties of the tissue and blood. The processor analyzes this multi-dimensional data to distinguish triglyceride-specific signals from other tissue components, thereby improving measurement accuracy without requiring invasive procedures.
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
Accurately measures triglyceride levels non-invasively with improved accuracy and provides personalized health guidance.
Implementation Method 1
a plurality of detectors each disposed at predetermined distances from the respective peripheral light sources of the plurality of peripheral light sources, the plurality of detectors being configured to detect optical signals reflected from or scattered by the object
Implementation Method 2
a plurality of detectors each disposed at predetermined distances from the respective peripheral light sources of the plurality of peripheral light sources, the plurality of detectors being configured to detect optical signals reflected from or scattered by the object
Data Source
AI summary
An apparatus for measuring a triglyceride level includes: a sensor including: a plurality of peripheral light sources disposed at a periphery thereof, the plurality of peripheral light sources being configured to emit light toward an object, and a plurality of detectors each disposed at predetermined distances from the respective peripheral light sources of the plurality of peripheral light sources, the plurality of detectors being configured to detect optical signals reflected from or scattered by the object. The apparatus also includes a processor configured to selectively drive the plurality of peripheral light sources to obtain features based on the detected optical signals, and to measure the triglyceride level based on the obtained features.