Infrared Mark Biosensor for Automatic Lot Identification
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Solution Overview
Problem
Existing electrochemical biosensors face challenges in accurately and conveniently inputting production lot information, leading to user errors and increased complexity and cost in measurement devices, particularly due to limitations in space and the need for complex optical systems for color or bar code identification.
Innovation Solution
The use of infrared absorption/reflection marks on electrochemical biosensor strips, readable by integrated photo-reflector sensing devices on a Printed Circuit Board, allows for automatic identification of production lot information without the need for high-priced filters or complex optical systems, simplifying the device construction and reducing user errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If colorimetric methods or bar codes are used to identify production lot information, then the measurement device can read the information, but the device complexity and construction cost increase due to limited space and requirement for complex optical systems
Solution Approach 1:
The patent replaces complex optical systems (colorimetric methods, bar codes requiring spectroscopes) with a simpler optical detection system using infrared marks and photo-detectors. This substitution reduces device complexity while maintaining information identification capability.
Solution Approach 2:
The patent changes the detection parameter from visible light spectrum (colorimetric) or complex optical patterns (bar codes) to infrared radiation detection. This parameter change simplifies the optical system requirements and reduces device complexity.
2Reliability
If user directly inputs calibration curve information, then production lot information can be provided, but user inconvenience and input errors increase leading to inaccurate results
Solution Approach 1:
The patent implements self-service by enabling the biosensor strip to automatically provide production lot information through infrared marks that are read by the measuring device. This eliminates the need for manual user input, preventing errors and ensuring reliable information transfer.
Solution Approach 2:
The patent applies preliminary action by pre-marking the biosensor strip with infrared absorption/reflection marks containing production lot information during manufacturing. This preliminary encoding allows automatic information retrieval during measurement without requiring user intervention.
3Loss of information
If resistance adjustment methods are used to store production information, then accurate information storage is achieved, but the post-processing complexity and inconvenience increase
Solution Approach 1:
The patent replaces electrical resistance adjustment methods with optical infrared mark encoding. This substitution eliminates complex post-processing steps while maintaining accurate information storage and retrieval capabilities.
Solution Approach 2:
The patent uses optical copying through infrared marks that can be read and interpreted by the measuring device. This copying method simplifies information transfer compared to electrical resistance adjustment, reducing post-processing complexity.
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
This solution enables convenient, accurate, and economical measurement of blood glucose levels by automatically identifying production lot information, reducing user input errors and simplifying the device's construction, while maintaining high reliability and precision.
Implementation Method 1
infrared absorption/reflection marks, which indicate information about differences between production lots through printing of colored or colorless materials or attachment of transparent films, having differences in absorbency or reflectivity of infrared rays
Implementation Method 2
infrared absorption/reflection marks, which indicate information about differences between production lots through printing of colored or colorless materials or attachment of transparent films, having differences in absorbency or reflectivity of infrared rays
Implementation Method 3
a plurality of integrated photo-reflector sensing devices that emit and receive reflected infrared rays in one component chip mounted on the same PCB of electrochemical measuring device to identify the infrared absorbing/reflecting production lot information
Data Source
AI summary
An electrochemical biosensor and a biosensor measuring device. The electrochemical biosensor includes a plurality of electrodes, capillary sample cell portions, reaction reagent layers, electrode connection portions, and a production lot information identification portion. The production lot information identification portion is configured such that the production lot information is recorded thereon has one or more infrared absorption/reflection marks, which indicate information about differences between production lots through the printing and/or attachment of colored or colorless materials, having differences in absorbency or reflectivity of infrared rays, in conformity of a predetermined pattern or through the attachment of transparent films. The electrochemical biosensor measuring device includes a plurality of integrated photo-reflector sensing devices that emit and receive infrared rays to identify the production lot information recorded on the production lot information identification portion of the biosensor.