Blood Glucose Test Strip With Non-Volatile Memory
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Solution Overview
Problem
Conventional blood glucose test strips rely on shared calibration parameters, leading to potential inaccuracies of up to 30% if users forget to update calibration, which can result in clinical misjudgments.
Innovation Solution
Incorporating a non-volatile memory on the test strip to store a unique calibration parameter calculated during a manufacturing process, allowing for accurate blood glucose level measurement by reading the stored parameter during the testing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a shared calibration parameter is used for all test strips in a batch, then the manufacturing process is simplified and cost is reduced, but the measurement precision deteriorates due to potential inaccuracies of up to 30% when users forget to update calibration
Solution Approach 1:
The patent divides the calibration parameter into individual units by incorporating a non-volatile memory on each test strip. This segments the shared calibration system into individualized storage, allowing each test strip to have its own unique calibration parameter without requiring manual updates from users.
Solution Approach 2:
The test strip autonomously stores and provides its calibration parameter through the non-volatile memory integrated into the test strip structure. This eliminates the need for users to manually input or update calibration parameters, as the test strip serves itself by retaining calibration data independently.
2Measurement precision
If a non-volatile memory is integrated into each test strip to store unique calibration parameters, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The non-volatile memory is integrated directly into the disposable test strip, utilizing low-cost memory components that are inexpensive and suitable for single-use applications. This approach avoids the need for complex reusable calibration systems while maintaining precision through individualized calibration storage.
3Ease of manufacture
If calibration parameters are manually updated by users when purchasing new test strips, then the manufacturing cost is reduced, but the reliability deteriorates due to user error and potential clinical misjudgments
Solution Approach 1:
The test strip autonomously stores and provides its calibration parameter through the non-volatile memory integrated into the test strip structure. This eliminates the need for users to manually input or update calibration parameters, as the test strip serves itself by retaining calibration data independently.
Solution Approach 2:
The calibration parameter is automatically provided by the test strip to the measuring device, creating a feedback loop where the calibration information is continuously available without requiring user intervention. This ensures consistent and reliable calibration data throughout the test strip's usage period.
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
Enhances the accuracy of blood glucose level measurements by ensuring each test strip has a specific calibration parameter, reducing user error and improving clinical reliability.
Implementation Method 1
Incorporating a non-volatile memory on the test strip to store a unique calibration parameter calculated during a manufacturing process
Implementation Method 2
a chemical reagent is applied on the calibration site and the test site. During a calibrating procedure, a calibration solution is dropped on the calibration site, a calibration parameter is calculated according to a first reaction result of the calibration solution and the chemical reagent
Data Source
AI summary
A blood glucose test strip includes a base substrate, a calibration site, a test site and a non-volatile memory. The calibration site is disposed on the base substrate. A chemical reagent is applied on the calibration site. The test site is disposed on the base substrate. A chemical reagent is applied on the test site. The non-volatile memory is disposed on the base substrate. A calibration parameter is stored in the non-volatile memory. During a calibrating procedure, the calibration solution is dropped on the calibration site, a calibration parameter is calculated according to a first reaction result of the calibration solution and the chemical reagent, and the calibration parameter is stored in the non-volatile memory.