Optical Blood Glucose Monitoring for Non-Invasive Continuous Sensing
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Solution Overview
Problem
Current technologies for monitoring blood sugar levels, particularly in prediabetic ranges, are invasive, painful, or ineffective, and lack real-time processing and management solutions, failing to address the growing global health challenge of diabetes.
Innovation Solution
A non-invasive, transmittive optical sensing system using near-infrared, green, and red light spectrometers with photodetectors, coupled with real-time processing and a microprocessor, to continuously monitor blood glucose and other physiological parameters, including blood pressure and stress levels, with integrated management recommendations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive monitoring methods are used, then measurement precision is improved, but ease of operation deteriorates due to pain and discomfort
Solution Approach 1:
The patent replaces mechanical/invasive penetration methods with optical sensing technology. Near-infrared, green, and red light sources transmit through the skin to detect blood sugar levels, blood pressure, and stress without physical penetration, eliminating pain while maintaining measurement capability
Solution Approach 2:
The patent introduces optical lenses and photodetectors as intermediary elements between the light sources and the physiological parameters. The optical system transmits and focuses light through the skin to detect blood sugar levels non-invasively, serving as a mediator that enables measurement without direct contact with blood
2Productivity
If continuous monitoring is implemented, then productivity is improved through real-time data, but use of energy increases due to continuous operation
Solution Approach 1:
The patent employs periodic pulsing of near-infrared, green, and red light sources rather than continuous illumination. The microprocessor controls the timing and duration of light emission, enabling continuous monitoring capability while significantly reducing overall power consumption through intermittent operation
Solution Approach 2:
The patent combines multiple light sources (near-infrared, green, and red LEDs) and their corresponding photodetectors into a single integrated monitoring device. This merging allows simultaneous measurement of multiple physiological parameters (blood sugar, blood pressure, stress) in one system, improving monitoring productivity while optimizing energy usage through shared control circuitry
3Adaptability or versatility
If multiple physiological parameters are monitored, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal monitoring device that can measure multiple physiological parameters (blood sugar levels, blood pressure, stress levels) using a common optical platform. The same basic structure with light sources, optical lenses, and photodetectors serves multiple functions by detecting different wavelengths and patterns of light transmission
Solution Approach 2:
The patent segments the monitoring system into distinct functional modules: near-infrared light source and photodetector for blood sugar detection, green LED and photodetector for blood pressure monitoring, and red LED and photodetector for stress level detection. This segmentation allows each parameter to be monitored independently while maintaining overall system simplicity through modular architecture
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
Provides accurate, continuous, and non-invasive monitoring of blood sugar levels and other health parameters, offering real-time management and prevention solutions, effectively addressing the growing diabetic and prediabetic population's needs.
Implementation Method 1
a transmittive configuration based near-infrared optical spectrometer... The transmitted optical response is captured and focused by the photodetector-end optical lens on the near-infrared photodetector
Implementation Method 2
An optical lens is placed after the near-infrared at signal probe end, which focuses and constructively interferes near-infrared radiation on the sensing spot
Implementation Method 3
An optical lens is placed after the near-infrared at signal probe end, which focuses and constructively interferes near-infrared radiation on the sensing spot
Implementation Method 4
An optical lens and green photodetector set are placed in the reflective configuration next to the tilted green LED to measure the response reflected by the coarse skin surface
Implementation Method 5
one LED signal probe is placed at normal direction and the other LED is tilted at a critical angle (θc)
Implementation Method 6
The adjacent red LED signal probes are tilted in opposite direction and placed on the either side of the normal LED... The signal difference between the response of central photodetector and response of other photodetectors are taken to analyse the dispersion effect
Data Source
AI summary
A non-invasive continuous blood sugar level monitoring apparatus integrated with a real-time health support system. The blood sugar levels and other vital physiological information of the user can also be tracked wirelessly through the apparatus. The apparatus has an integrated real-time alert and reminder feature for notifying the user during medication and unusual physiological conditions. An automated diet and lifestyle recommendation solution is integrated into the device to help the user maintain healthy blood sugar and blood pressure levels. The low-powered the telemetry device is used for communicating the stored physiological information of the user and the computed results between the network of devices.