Blood Vessel Alignment Index for Optical Component Estimation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Non-invasive optical methods for estimating blood components, such as triglyceride concentration, face reliability issues due to increased noise when the measurement apparatus is not accurately aligned with blood vessels, affecting the accuracy of scattering coefficient measurements.
Innovation Solution
A biological component estimation apparatus with a light detector array and dual light sources calculates a blood vessel alignment index by comparing intensity slopes of light emitted from both ends, adjusting its position to minimize the index and improve alignment, thereby reducing noise and enhancing measurement reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the measurement apparatus is placed at a blood vessel portion to receive scattered light signal, then blood component concentration can be estimated non-invasively, but noise increases when the position slightly strays from the blood vessel portion, reducing measurement reliability
Solution Approach 1:
The system calculates a blood vessel alignment index by comparing intensity slopes of light from dual sources, provides feedback on alignment quality, and enables position adjustment to optimize the alignment between the measurement apparatus and blood vessels, thereby improving measurement reliability
Solution Approach 2:
The patent replaces manual positioning with an automated optical alignment system that uses light intensity measurements and computational algorithms to determine and optimize the apparatus position relative to blood vessels
2Measurement precision
If the position of the measurement apparatus is manually adjusted to align with blood vessels, then measurement accuracy may improve, but the process becomes complex and difficult to optimize
Solution Approach 1:
The measurement apparatus performs self-alignment by automatically calculating the blood vessel alignment index based on light intensity measurements and using this information to adjust its own position, eliminating the need for complex manual alignment procedures
Solution Approach 2:
The system performs preliminary alignment measurements using dual light sources before the actual blood component measurement, establishing optimal positioning in advance to ensure accurate measurements without requiring complex real-time adjustments
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
The apparatus effectively reduces noise and improves the accuracy of blood component estimation by ensuring optimal alignment with blood vessels, allowing for precise measurement of components like blood glucose, triglyceride, and cholesterol.
Implementation Method 1
receive a signal of light that is scattered after passing through blood
Implementation Method 2
a light detector array including a plurality of light detectors
Data Source
AI summary
A biological component estimation apparatus according to an aspect of the present invention includes: a light detector array including a plurality of light detectors; a plurality of light sources disposed on both ends of the light detector array; and a processor configured to calculate a blood vessel alignment index, which indicates a degree of alignment of the biological component estimation apparatus with respect to blood vessels, by using an intensity of a first light that is measured by the plurality of light detectors after the first light is emitted to a user's skin from a first light source disposed on one end of the light detector array among the plurality of light sources, and an intensity of a second light that is measured by the plurality of light detectors after the second light is emitted to the user's skin from a second light source disposed on the other end of the light detector array among the plurality of light sources.