Modular Diagnostic System With Integrated Lancet Tensioning
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Solution Overview
Problem
Existing portable diagnostic systems for monitoring blood glucose concentrations are bulky, prone to errors, and require additional components, such as separate test strip cartridges and lancet systems, leading to increased space usage and variability in measurement accuracy due to batch differences in test strips.
Innovation Solution
A modular diagnostic system comprising a separate diagnostic module with an integrated lancet system and a magazine module for storing test strips, allowing for easy assembly and disassembly, automatic tensioning of the lancet system, and data exchange between modules to reduce errors and eliminate the need for bulky test strip cartridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an integrated test appliance with all components (lancet system, sensor, test strip cartridge) is enclosed in one housing, then complete functionality is achieved, but the device takes up a great deal of space and is heavy
Solution Approach 1:
The diagnostic system is divided into separate modules: a diagnostic module containing the measurement system and a separate test strip storage system. This segmentation allows the heavy integrated housing to be eliminated while maintaining complete functionality through modular components that can be used separately or combined.
2Volume of stationary object
If separate test strip cartridges and lancet systems are used, then space requirements increase, but measurement accuracy may vary due to batch differences in test strips
Solution Approach 1:
The system incorporates a data exchange mechanism where batch information from test strips is automatically transferred to the diagnostic module. This feedback loop allows the system to compensate for batch differences and maintain measurement accuracy across different test strip batches.
3Reliability
If test strips are stored in a moisture-tight and air-tight arrangement with slide device, then test strip protection is improved, but the device complexity increases due to additional components
Solution Approach 1:
The sealing function and the storage function are merged into a single integrated storage unit. The housing itself provides the moisture-tight and air-tight protection, eliminating the need for separate sealing mechanisms while maintaining test strip protection.
4Ease of operation
If manual handling of test strips is required, then user control is maintained, but errors increase due to user interaction with contaminated test strips
Solution Approach 1:
The system implements automatic test strip dispensing and handling mechanisms that eliminate the need for manual user interaction with contaminated test strips. The device serves itself by automatically advancing, positioning, and processing test strips, thereby reducing user errors while maintaining ease of operation through simple button presses.
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 modular design enhances portability, reduces space requirements, ensures accurate measurements by minimizing user interaction with contaminated test strips, and automatically manages lancet tensioning and test strip batch information, thereby improving handling and reducing errors.
Implementation Method 1
The electrode system can, for example, involve gold electrodes which are provided with a coating. The coating in most cases contains various enzymes and so-called mediators and has the effect that charge carriers (for example in the form of redox molecules) form within the sample on the electrodes, the concentration of these charge carriers being dependent on the blood glucose concentration.
Data Source
AI summary
A diagnostic system has a diagnostic module with an integrated lancet system and a magazine module separate from the diagnostic module. The diagnostic device also has a connecting device that is used for tensioning the lancet system.