Mucosal Carbohydrate Screening Test Strip Using Galactose Oxidase
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Solution Overview
Problem
Existing screening tests for cancerous and precancerous conditions are hindered by insensitivity, non-specificity, and complex procedures, leading to potential false negatives due to sampling or procedural errors.
Innovation Solution
A screening test method, device, and kit that utilize a test strip or membrane with pre-embedded galactose oxidase and a separate container with Schiff's Reagent, where the Reagent is not initially in contact with the test strip, allowing for improved accuracy and reduced handling procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple liquid components and multiple testing steps are used in the test kit, then the detection capability is comprehensive, but the complexity of the procedure increases and false negatives may occur due to sampling or procedural errors
Solution Approach 1:
The patent combines multiple liquid components (galactose oxidase solution and Schiff's reagent) and multiple testing steps into a single integrated test strip. The test strip contains both reagents pre-loaded in separate chambers, eliminating the need for manual handling of multiple components and reducing procedural complexity while maintaining comprehensive detection capability.
Solution Approach 2:
The test strip is divided into distinct functional chambers: a sample application chamber, a reaction chamber containing galactose oxidase, and a detection chamber containing Schiff's reagent. This segmentation allows each component to perform its specific function while being integrated into a single device, reducing the need for multiple separate steps and minimizing procedural errors.
2Measurement precision
If multiple handling procedures are required in the testing method, then the detection process is thorough, but the risk of false negatives due to sampling or procedural errors increases
Solution Approach 1:
The test strip is designed to perform multiple functions automatically without requiring extensive manual intervention. The sample application chamber automatically draws in the sample, the galactose oxidase chamber automatically reacts with the sample to produce colored complexes, and the Schiff's reagent chamber automatically detects the presence of carbohydrates. This self-service design maintains thorough detection while significantly improving ease of operation.
Solution Approach 2:
The test strip is pre-prepared with galactose oxidase and Schiff's reagent loaded into their respective chambers before use. This preliminary preparation eliminates the need for users to manually prepare and handle multiple liquid components during the testing process, reducing procedural errors while maintaining detection precision.
3Ease of operation
If the Schiff reagent solution is initially in contact with the test strip, then the testing process is simplified, but the reagent may degrade or react prematurely reducing accuracy
Solution Approach 1:
The test strip divides the Schiff reagent into a separate detection chamber, physically isolating it from the sample application and reaction chambers. This segmentation allows the reagent to remain stable and non-reactive during storage and initial handling, while still enabling a simplified single-step testing process when the sample is applied. The reagent only contacts the sample during the actual detection phase, preventing premature reaction while maintaining operational simplicity.
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 method provides improved accuracy in detecting abnormal carbohydrates associated with cancerous and precancerous conditions, minimizing false negatives and simplifying the testing process.
Implementation Method 1
oxidizing marker carbohydrates in the mucus or body fluid that contains marker carbohydrates by reacting with galactose oxidase
Implementation Method 2
activating a container with Schiff reagent solution adjacent to the test strip or membrane to contact the test strip or membrane
Data Source
AI summary
This disclosure relates to a screening test method, device, and kit for mucosal carbohydrates and associated conditions including, cancerous and precancerous conditions. Specifically, the method tests abnormal carbohydrates in mucus or body fluid using reagents of galactose oxidase, and Schiff's Reagent. The screening test method, device, and kit provides improved accuracy, and minimizes handling procedures. This disclosure further relates to the use of the device or kit in a medical facility for an initial evaluation for cancerous and precancerous conditions.