Biosensor Electrode Encoding Identification via Resistance Ratios
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Solution Overview
Problem
Conventional biosensors and readout meters require separate implementation of functions to recognize the biosensor, target substance, and measurement conditions, leading to user inconvenience and inefficiency.
Innovation Solution
A biosensor with electrodes having multiple contact points and an electrode pattern, where identification information is recorded based on the ratio of resistances between these points, allowing the readout meter to automatically recognize and input necessary information upon insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional biosensor structure with separate recognition functions is used, then the biosensor can perform basic measurement functions, but the user must manually input information about target substance, measurement conditions, and calibration codes into the readout meter
Solution Approach 1:
The patent merges multiple separate recognition functions into a single integrated electrode structure. The electrode contains multiple contact points with different resistance values that simultaneously encode target substance type, measurement conditions, and calibration information. This eliminates the need for separate input mechanisms and manual user entry, resolving the contradiction between ease of operation and device complexity.
Solution Approach 2:
The electrode structure serves multiple functions: it acts as both the sensing element and the information storage medium. The contact points with different resistance values provide universal recognition for various target substances, measurement conditions, and calibration codes through a single component, rather than requiring separate dedicated structures for each function.
2Loss of information
If multiple separate electrodes or input mechanisms are implemented to recognize different information types, then complete information recognition is achieved, but the biosensor structure becomes more complex and costly
Solution Approach 1:
Multiple information types are merged into a single electrode structure where different contact points represent different information categories. The resistance values between contact points encode target substance type, measurement conditions, and calibration codes simultaneously, achieving complete information recognition without multiplying the number of physical components.
Solution Approach 2:
The patent uses resistance value parameters to encode multiple types of information. By varying the resistance values between different contact points in a systematic way, the electrode can represent different target substances, measurement conditions, and calibration levels without changing the physical structure or adding more electrodes.
3Productivity
If manual calibration code selection is required in the readout meter, then flexibility in measurement is maintained, but measurement time increases and productivity decreases
Solution Approach 1:
The calibration codes and measurement parameters are predetermined and pre-encoded into the electrode structure during manufacturing. Each contact point configuration corresponds to a specific calibration code and measurement condition, eliminating the need for real-time manual selection during measurement. The readout meter automatically reads the pre-encoded information, significantly reducing measurement time and increasing productivity.
Solution Approach 2:
The biosensor automatically provides its own calibration and configuration information through the resistance values of its contact points. When inserted into the readout meter, the sensor self-identifies its type, the target substance it measures, and the appropriate calibration parameters, without requiring user intervention or manual code entry.
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
Enables automatic recognition and input of various information, such as electrical connection, target substance type, measurement conditions, and user information, eliminating the need for separate user input and enhancing the integration of biosensor and readout meter functionality.
Implementation Method 1
identification information is recorded on the electrode based on the ratio of resistances between the plurality of contact points
Data Source
AI summary
The present invention relates to a biosensor for selectively performing quantitative analysis on a specific substance contained in a biological sample and a readout meter using the same. The inventive biosensor comprises an electrode for recording identification information of the biosensor thereon. The electrode has an electrode pattern and a plurality of contact points formed thereon according to the identification information, and the identification information is recorded on the electrode based on the ratio of resistances between the plurality of contact points. According to the present invention, various items of identification information such as in formation on recognition of electrical connection between the contact points of the biosensor and a readout meter, the kind of a target substance, measurement conditions, production information of the biosensor, analysis information of the target substance, user information, available meter information and the like are automatically recognized by the readout meter through the electrodes.