Non-invasive Glucose Monitoring via Adaptive RF Antenna Arrays
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Solution Overview
Problem
Current methods for monitoring blood glucose levels in diabetes management are invasive, painful, and costly, with continuous glucose monitoring systems facing issues of discomfort and high susceptibility to biofouling, while self-monitoring blood glucose systems require frequent finger pricking.
Innovation Solution
A non-invasive biological and chemical markers monitoring device using RF circuits and antenna design, comprising a body area network with circular antenna arrays operating at mm-wave and microwave ranges, capable of measuring glucose concentrations without blood extraction, featuring adaptive beam steering and power levels based on vein detection for enhanced accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous glucose monitoring systems (CGMS) are used to monitor blood glucose continuously, then glucose monitoring reliability is improved, but patient comfort deteriorates and susceptibility to biofouling increases
Solution Approach 1:
The patent replaces the mechanical/invasive sensor insertion method with a non-invasive RF sensing system. The RF sensor system detects glucose levels through electromagnetic interactions with tissue without requiring physical penetration or contact with blood vessels, thereby eliminating mechanical trauma and reducing biofouling while maintaining continuous monitoring capability
Solution Approach 2:
The patent introduces RF electromagnetic waves as an intermediary medium to detect glucose levels. Instead of direct contact between sensors and biological fluid, the RF waves interact with the tissue and blood glucose indirectly, allowing measurement without physical intrusion into the bloodstream, thus improving patient comfort and reducing biofouling risks
2Measurement precision
If self-monitoring blood glucose (SMBG) systems are used with frequent finger pricking, then measurement precision is improved, but patient comfort and ease of operation deteriorate
Solution Approach 1:
The patent replaces the mechanical lancet-based finger pricking system with an RF-based sensing system. The RF sensor measures glucose levels through electromagnetic interactions with tissue, eliminating the need for repeated needle insertions and blood sampling, thereby maintaining measurement precision while dramatically improving patient comfort and operational convenience
Solution Approach 2:
The patent enables the body's own tissue and blood to serve as the sensing medium. The RF sensor utilizes the natural electromagnetic properties of human tissue and blood glucose to perform measurements without requiring external blood sampling or mechanical intervention, making the monitoring process painless and convenient for patients
3Reliability
If invasive CGMS utilizing interstitial fluid is used to estimate blood glucose, then continuous monitoring reliability is improved, but invasiveness and patient comfort worsen
Solution Approach 1:
The patent replaces the invasive interstitial fluid sampling method with non-invasive RF sensing. Instead of inserting sensors into tissue to collect interstitial fluid, the RF sensor measures glucose levels through electromagnetic interactions with the tissue and blood, eliminating the need for physical insertion while maintaining continuous monitoring reliability
Solution Approach 2:
The patent uses RF electromagnetic waves as an intermediary to detect glucose levels without direct contact with interstitial fluid or blood. The RF waves penetrate tissue and interact with glucose molecules indirectly, allowing continuous monitoring without invasive sensor insertion or fluid collection
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 device provides continuous, reliable, and accurate glucose monitoring with reduced discomfort and cost, offering improved patient compliance and disease management by tracking glucose levels and predicting hyperglycemia/hypoglycemia, while being adaptable to various body topologies and physiological conditions.
Implementation Method 1
a plurality of device antenna arrays (150) which includes a plurality of circular antenna arrays (152)... each circular antenna array includes a first set of antenna arrays (154) that operates at a mm-wave range and a second set of antenna arrays (156) that operates at a microwave range
Data Source
AI summary
The device measures glucose concentration in blood without any extraction of blood. The device is a non-invasive method for measuring glucose Radio Frequency and Antenna Circuits and Systems. The device is a wearable device that can non-invasively measure blood glucose levels in an instantaneous manner and continuous manner.