Biosensor Measuring Device with Optical Lot Identification
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Solution Overview
Problem
Conventional electrochemical biosensors require manual input of calibration curve information for each production lot, leading to user errors and inconvenient post-processing, especially in small-sized systems, necessitating a method to automatically identify production lot information without user intervention for accurate blood glucose measurement.
Innovation Solution
The method involves recording production lot information as hue marks or hole marks on the biosensor strip and using a small-sized emitter-detector system to automatically read this information, eliminating the need for user input, with a sliding door structure in the connector to facilitate light absorption or reflection for identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual input of calibration curve information is required for each production lot, then production lot information can be identified, but user errors increase and convenience decreases
Solution Approach 1:
The biosensor strip automatically identifies its own production lot information through optical marks (hue marks or hole marks) that are read by the measuring device, eliminating the need for manual user input. The system serves itself by encoding production lot information directly on the strip and automatically reading it upon insertion.
Solution Approach 2:
Production lot information is pre-encoded on the biosensor strip in the form of optical marks during manufacturing. This preliminary encoding allows the measuring device to automatically retrieve the information without requiring user intervention during the measurement process.
2Measurement precision
If post-processing of measured information is required to adjust resistance, then production lot variation can be corrected, but the process becomes inconvenient and time-consuming
Solution Approach 1:
The patent replaces the mechanical/electrical resistance adjustment method with an optical identification system. Instead of measuring and adjusting electrical resistance through post-processing, the system uses optical marks (hue marks or hole marks) that can be instantly read by the measuring device, eliminating the time-consuming post-processing step.
Solution Approach 2:
Production lot information is copied onto the biosensor strip in the form of optical marks during manufacturing. This copy allows the measuring device to immediately access the information without requiring subsequent measurement and processing of electrical properties.
3Extent of automation
If spectral systems with color marks are used for identification, then production lot information can be read automatically, but system construction expense and size increase
Solution Approach 1:
Instead of using a full spectral system, the patent uses localized optical marks (hue marks or hole marks) that require minimal optical components for reading. The simplification focuses on the specific function of identifying production lot information while reducing overall system complexity and cost.
Solution Approach 2:
The patent uses simple, inexpensive optical marks (hue marks or hole marks) on disposable biosensor strips instead of complex, expensive spectral identification systems. The identification information is embedded in a simple optical format that can be read with minimal additional hardware.
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 approach allows for accurate and convenient measurement of blood glucose levels by automatically identifying production lot information, reducing user errors and system construction costs, while maintaining economic efficiency and ease of use.
Implementation Method 1
at least one light absorption or reflection path sequentially through a light emitter-production lot information identification portion-detector is provided
Implementation Method 2
at least one light absorption or reflection path sequentially through a light emitter-production lot information identification portion-detector is provided
Implementation Method 3
Glucose + GOx-FAD → gluconic acid + GOx-FADH2; GOx-FADH2 + Mox → GOx-FAD + Mred
Implementation Method 4
Glucose in the blood is oxidized to gluconic acid by the catalytic activity of glucose oxidase
Data Source
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AI summary
Disclosed is an electrochemical biosensor measuring device which can be used together with an electrochemical biosensor. The biosensor measuring device comprises an electrical connection portion which is electrically connected with the electrodes of the biosensor upon the insertion of the biosensor there into, and a connector having a structure in which at least one light absorption or reflection path sequentially comprising a light emitter-production lot information identification portion-detector unit is provided to identify the production lot information recorded in the biosensor. The electrochemical biosensor measuring device can automatically identify the production lot information of the biosensor, encoded in the form of a hue or hole marks, upon the insertion of the electrochemical biosensor into the measuring device, thereby obviating the need to manually input the production lot information of the biosensor. Thus, inconvenience and the frequency of errors, which occur when a user personally inputs the production lot information, can be reduced, with the result that the measured values can be conveniently and accurately acquired.