Mobile Device Adjustment for Optical Test Strip Analysis

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Solution Overview

Problem

Existing analytical measurement methods using mobile devices face challenges such as high failure rates, time-consuming results, and user-specific handling issues due to varying physical and mental capabilities, leading to frustration and wastage of disposables like test strips.

Innovation Solution

An adjustment method for mobile devices that automatically adapts measurement modes by capturing images of optical test strips before and after sample application, checking for measurement rejection criteria, and adjusting settings to either a reduced or enhanced mode based on error analysis to improve user handling and measurement accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If standard measurement mode with strict rejection criteria is used, then measurement accuracy is improved, but measurement failure rate increases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidmeasurement success rate
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The measurement system dynamically adjusts the strictness of rejection criteria based on real-time analysis of measurement failures. The processor monitors rejection events and automatically modifies measurement parameters to balance accuracy requirements with success rate, creating a adaptive system that responds to actual performance data.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes measurement parameters such as image capture settings, analysis thresholds, and rejection criteria based on analyzed failure patterns. By modifying these parameters in response to observed failures, the system optimizes the balance between maintaining high accuracy and reducing unnecessary rejections.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If multiple measurement attempts are required, then measurement accuracy is improved, but measurement time increases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidmeasurement time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system implements feedback mechanisms where measurement results and rejection events are analyzed to provide guidance for subsequent measurements. This feedback loop helps users understand why measurements were rejected and what can be done differently, reducing the number of repeated attempts needed while maintaining accuracy.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system automatically analyzes failure patterns and adjusts its own measurement parameters without requiring manual user intervention. This self-adjusting capability reduces the time users would otherwise spend on multiple measurement attempts by having the system learn from and correct its own performance issues.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If user-specific handling variations are accommodated, then ease of operation is improved, but measurement consistency deteriorates

Engineering Contradiction:
Improveuser handling easeVSAvoidmeasurement consistency
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system applies different measurement criteria and processing approaches tailored to specific user behaviors and handling patterns. By analyzing individual user performance data, the system creates customized measurement protocols for each user, allowing accommodation of personal variations while maintaining consistent and accurate measurement results through personalized parameters.

Inventive Principle:
Principle #3Local quality

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 method reduces failed measurements, enhances measurement reliability and accuracy, and adapts to user-specific preferences by providing corrective feedback, thus improving user experience and reducing test strip wastage.

Implementation Method 1

an optical test strip having a test field before and/or after sample application... based on a color formation reaction

Methodology Applied
Scientific EffectColor formation reaction:

Data Source

PatentEP3842791B1Adjustment method for adjusting a setup for an analytical method
Publication Date: 2023.10.04 ROCHE DIABETES CARE GMBH
  • EP3842791B1 patent drawingFigure 1
  • EP3842791B1 patent drawingFigure 2~4

AI summary

The present invention refers to an adjustment method for adjusting a setup for an analytical method of determining a concentration of an analyte in a bodily fluid based on a color formation reaction in an optical test strip mobile device for performing analytical measurements. The invention further relates to a mobile device configured for performing the adjustment method, a computer program and a computer-readable storage medium for performing the adjustment method and a kit comprising a test strip or a dummy test strip and at least one of the mobile device, the computer program and the computer-readable storage medium. The method, device, computer program, storage media and kit specifically may be used in medical diagnostics, in order to for example qualitatively or quantitatively detect one or more analytes in one or more body fluids, such as for detecting glucose in blood and/or interstitial fluid. Other fields of application of the present invention, however, are feasible.