Biosensor Cartridge QR Authentication Without On-Board Memory
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Solution Overview
Problem
Conventional biosensors face challenges such as inaccurate color-based detection methods, fragile electrode structures, and the need for dedicated and expensive measurement devices, which limit their accessibility and reliability for rapid and accurate disease diagnosis, especially in home or private settings.
Innovation Solution
A biosensor cartridge system with a sensor chip and circuit substrate, featuring a QR code for genuine product certification, which is compact, minimizes sensor chip influence during connection, and eliminates the need for a separate memory chip, allowing for portable and cost-effective diagnostic devices that can read detection information without external operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electrode is extendedly formed to include the connector, then the connector for connecting with the measurement device is integrated, but the size of the sensor chip becomes greater which degrades chip yield
Solution Approach 1:
The biosensor chip is divided into separate functional components: the sensor chip contains only the sensing electrode, while the connector is separated and integrated into the housing structure. This segmentation allows the sensor chip to maintain a small size for high yield, while the connector provides necessary connection functionality.
2Device complexity
If the electrode is extendedly formed to include the connector, then the connector for connecting with the measurement device is integrated, but the sensor chip size increases unnecessarily
Solution Approach 1:
The electrode function is segmented from the connector function. The sensor chip contains only the sensing electrode with minimal size, while the connector is implemented as a separate component in the housing, reducing the sensor chip volume.
Solution Approach 2:
The housing acts as an intermediary structure that contains the connector and provides mechanical support, allowing the sensor chip to be small while still achieving integration with the measurement device through the housing's connection terminal.
3Reliability
If a separate reader is required to read barcode for genuine product certification, then product authentication is possible, but the equipment cost and system complexity increase
Solution Approach 1:
The barcode reading function is merged with the main measurement device rather than being a separate reader. The measurement device integrates both the sensing functionality and the barcode reading capability, reducing system complexity while maintaining genuine product certification.
Solution Approach 2:
The measurement device is designed with multi-functionality, serving both as the measurement instrument and as the barcode reader for authentication. This universal device eliminates the need for a dedicated separate reader, reducing equipment cost and system complexity.
4Reliability
If information transmission and reception between reader and measurement device is required, then genuine product certification is possible, but the diagnosing time increases
Solution Approach 1:
The barcode reading and authentication process is performed preliminarily before the measurement process. The device reads the barcode, verifies genuine product status, and prepares the measurement parameters in advance, so that the actual measurement can proceed without time loss.
Solution Approach 2:
The authentication and measurement processes are continuous rather than sequential. The barcode reading occurs during the initial setup phase, and the measurement follows immediately without interruption, maintaining continuous useful action and minimizing total diagnosing time.
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 system provides accurate, portable, and cost-effective disease diagnosis by minimizing sensor chip damage, eliminating the need for dedicated devices, and ensuring reliable genuine product certification through QR code-based environment information, enhancing accessibility and accuracy.
Implementation Method 1
when a target material is combined in a channel, if an electrochemical reaction occurs or the target material itself has a charge, electrons or holes in the semiconductor structure are accumulated or depleted due to the electric field effect caused by the combination of the probe material and the target material
Implementation Method 2
electrons or holes in the semiconductor structure are accumulated or depleted due to the electric field effect caused by the combination of the probe material and the target material
Implementation Method 3
a QR reading module disposed on a front end of the insertion hole, for reading a QR code of the biosensor cartridge when the biosensor cartridge is inserted
Data Source
AI summary
A biosensor cartridge includes: a circuit board that is electrically connectable to an external diagnostic device; a sensor chip for detecting a target material from an applied analysis specimen, have a reactant reacting specifically with the target material, and transmitting an electrical signal generated by reacting with the detected target material to the connection terminal of the circuit board; and a housing accommodating the circuit board and the sensor chip and surround the circuit board and the sensor chip so that the connection terminal is exposed, and the housing including a QR code having stored therein encrypted sensor information. Accordingly, a separate memory chip that stores environment information for genuine product certification of the biosensor on the circuit substrate is not mounted, and the cost is saved, and there is an effect of minimizing the volume of the cartridge.