Blood Glucose Monitoring Module With Blocking Walls and Clear Packaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional non-invasive blood glucose monitoring devices face challenges in controlling cutting depths and paths during the half-cutting process, leading to potential damage and reduced light path, which affects detection accuracy. Additionally, conventional packaging materials have low optical transmittance, further impairing the light-emitting or light-receiving effects.
Innovation Solution
The non-invasive blood glucose monitoring module incorporates a substrate with a first and second detecting unit, each comprising light sources, photosensitive elements, and blocking wall structures. The blocking wall structures are designed to prevent direct light from reaching the photosensitive elements, improving detection accuracy, and are made from high-viscosity materials to simplify manufacturing. The module also uses a packaging material with high optical transmittance to enhance light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If blocking walls with heights reaching the surface of the cover are formed, then light interference between light-emitting elements and photosensitive elements is blocked, but the light path from light-emitting elements to photosensitive elements is reduced
Solution Approach 1:
The patent introduces a new dimension by adding a transparent cover layer above the blocking walls. This allows the blocking walls to maintain their light-blocking function while the transparent cover restores the light path by providing an additional optical transmission medium above the blocking structures, effectively solving the contradiction between blocking interference and maintaining light path length.
Solution Approach 2:
The transparent cover acts as an intermediary element that mediates between the blocking walls and the light path. It allows light to pass through while the blocking walls below prevent lateral light interference, thus resolving the conflict between needing to block interference and maintaining sufficient light path length for detection.
2Ease of manufacture
If conventional epoxy resin packaging material is used, then manufacturing is simplified, but optical transmittance is less than 80%, affecting light-emitting or light-receiving effects
Solution Approach 1:
The patent changes the key parameter of the packaging material from conventional epoxy resin to transparent adhesive material with significantly higher optical transmittance (>90%). This parameter change maintains the simplicity of the packaging process while dramatically improving the light transmission performance, directly resolving the contradiction between ease of manufacture and optical transmittance.
3Manufacturing precision
If half-cutting process is used to form grooves, then blocking walls are created, but cutting depths and paths are difficult to control causing damages to cover or substrate
Solution Approach 1:
The patent extracts the half-cutting process entirely from the manufacturing method. Instead of using cutting tools to form grooves and blocking walls, the invention uses a printing process to directly form blocking walls with adhesive material on the substrate, eliminating the complex and difficult-to-control half-cutting operation while achieving the same functional result.
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 module achieves improved detection accuracy by optimizing light path and reducing interference, while the high optical transmittance packaging material ensures better light transmission, addressing the limitations of conventional devices.
Implementation Method 1
The first light source set has two first light-emitting elements, and each first light-emitting element emits light with a first wavelength
Implementation Method 2
conventional packaging materials are mostly epoxy resins, generally with optical transmittance of less than 80%, which also affects the light-emitting or light-receiving effects
Implementation Method 3
The first photosensitive element correspondingly receives the light emitted from the first light source set
Data Source
AI summary
A non-invasive blood glucose monitoring module with high optical transmittance includes a substrate, a first detecting unit and a second detecting unit. The first detecting unit includes a first light source set, a first photosensitive element and first blocking wall structures. The first photosensitive element receives light, with a first wavelength, emitted from the first light source set. The first blocking wall structures are located between the two first light-emitting elements and between the first light source set and the first photosensitive element. The second detecting unit includes a second light source set, a second photosensitive element and second blocking wall structures. The second photosensitive element receives light, with a second wavelength, emitted from the second light source set. The second blocking wall structures are located between the two second light-emitting elements and between the second light source set and the second photosensitive element.