Bio Information Measuring Device with Integrated Biocompatible Organic Micro Needles
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Solution Overview
Problem
Micro needle blood sugar readers face issues with stability and accuracy due to detachment of catalyst and detecting layers from the needles, leading to increased error in blood sugar readings and complexity in manufacturing, as well as difficulties in arranging and assembling electrodes.
Innovation Solution
A bio information measuring device with micro needles formed from a biocompatible organic material including an enzyme member and a conductive polymer, which can remain stable even when removed from the skin and efficiently arranged on electrodes, allowing for accurate readings and simplified manufacturing by injecting and polymerizing the material within a stacked sensor and mold structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple layers (conductive layers, detecting layers, and coating layers) are stacked on base needles to enable blood sugar measurement, then the measurement function is improved, but the manufacturing complexity and defect rate increase
Solution Approach 1:
The patent combines multiple functional layers (conductive layer, detecting layer, and coating layer) into a single integrated biocompatible organic material that contains both the enzyme member for detection and the conductive polymer for signal transmission. This merging eliminates the need for separate stacking processes and reduces manufacturing complexity while maintaining the measurement function.
Solution Approach 2:
The patent uses a composite material structure where the biocompatible organic material is formed by mixing an enzyme member with a conductive polymer. This composite approach integrates multiple functions (enzymatic detection and electrical conduction) into a single material layer, avoiding the need for multiple separate layers and their associated manufacturing challenges.
2Measurement precision
If catalyst and detecting layers are coated on the outer circumferential surface of base needles to enable detection, then the detection capability is improved, but the layers may detach during carrying or processing, increasing error rate
Solution Approach 1:
The patent merges the detecting layer and coating layer functions into the bulk structure of the biocompatible organic material itself, rather than applying them as separate surface coatings. The enzyme member and conductive polymer are mixed together to form an integrated structure where the detecting and protective functions are inherent to the material composition, eliminating detachment issues.
3Ease of operation
If micro needles are left in the corium or epidermis for continuous monitoring, then the convenience of use is improved, but the testee experiences anxiety about retained needles
Solution Approach 1:
The patent changes the material parameter of the needle from traditional solid materials to a biocompatible organic material that can dissolve or be absorbed by the body. This parameter change allows the needle to provide continuous monitoring when inserted, then gradually dissolve to eliminate the foreign object, thereby maintaining convenience while reducing testee anxiety about retained needles.
4Reliability
If a packaging process is added to assemble working electrodes and other electrodes, then the assembly completeness is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent merges the electrode assembly and packaging functions into a single integrated structure. The biocompatible organic material containing the enzyme and conductive polymer serves simultaneously as the sensing element and the electrode component, eliminating the need for separate packaging and assembly processes for multiple electrode components.
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 stable and accurate bio information measurements with reduced manufacturing complexity, ensuring consistent readings and efficient electrode arrangement, even when the outer layers of the needles are damaged or removed.
Implementation Method 1
the plurality of needles include a biocompatible organic material which includes an enzyme member that reacts with an analysis material
Implementation Method 2
a conductive polymer for transferring an electrical signal generated as a result of a reaction of the enzyme member with the analysis material
Implementation Method 3
injecting and polymerizing the material within a stacked sensor and mold structure
Data Source
AI summary
A bio information measuring device is provided. The bio information measuring device includes a sensor portion and a needle portion including a plurality of needles projecting from a plurality of openings formed in a surface of the sensor portion. The plurality of needles are configured to pierce tissue, wherein the plurality of needles include a biocompatible organic material which includes an enzyme member that reacts with an analysis material and a conductive polymer for transferring an electrical signal generated as a result of a reaction of the enzyme member with the analysis material.