Fluorescent Surface Cleaning Indicator for Healthcare
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Solution Overview
Problem
Current methods lack a non-microbiological way to effectively evaluate the thoroughness of surface cleaning in healthcare environments, which is crucial for controlling nosocomial pathogens like MRSA, VRE, and C. difficile, as existing practices often fail to ensure consistent and adequate disinfection of high-touch surfaces.
Innovation Solution
A method involving the application of a transparent indicator material to surfaces, which is either fluorescent or adheres well, allowing for assessment of cleaning thoroughness by measuring residual amounts after exposure to UV radiation, and a composition comprising a carrier, surfactant, and adherence source, facilitating targeted cleaning and disinfection programs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional cleaning evaluation methods are used, then cleaning procedures can be performed, but the thoroughness and effectiveness of cleaning cannot be objectively measured
Solution Approach 1:
The patent applies fluorescent marker materials that change visibility under UV light to surfaces, allowing objective measurement of cleaning thoroughness. The markers are applied to surfaces, and after cleaning, UV illumination reveals whether markers remain, providing precise measurement of cleaning effectiveness without losing information about cleaning quality.
2Reliability
If microbiological methods are used to evaluate cleaning, then pathogen presence can be detected, but the methods are complex, time-consuming, and cannot provide timely feedback
Solution Approach 1:
The patent replaces complex microbiological testing systems with a simple optical detection system using fluorescent markers and UV light. This substitution maintains reliability in verifying cleaning effectiveness while dramatically reducing evaluation time from days (microbiological culture) to seconds (UV inspection), enabling timely feedback for cleaning process improvement.
3Productivity
If cleaning procedures are performed without monitoring, then cleaning activities can be completed, but deficiencies in cleaning thoroughness cannot be identified
Solution Approach 1:
The patent implements a feedback mechanism where fluorescent markers provide immediate visual information about cleaning quality through UV inspection. This feedback loop allows cleaning personnel to identify deficiencies and repeat cleaning procedures as needed, improving overall cleaning efficiency while preserving information about cleaning quality through objective marker detection.
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 approach enables timely and objective evaluation of cleaning activities, identifying deficiencies and enhancing cleaning programs to reduce pathogen levels, thereby improving infection control in healthcare settings.
Implementation Method 1
The transparent indicator material may be a fluorescent material and measuring the amount of remaining on the surface may include exposing the area to ultraviolet radiation
Data Source
AI summary
A method for monitoring cleaning of a surface includes applying an amount of transparent indicator material to an area of a surface and measuring the amount of transparent indicator material remaining on the surface. The transparent indicator material may be fixed on the surface by drying and, when a fluorescent material, may be measured through exposure to ultraviolet radiation.