Aerosol Cleaning Composition for Fast and Lasting Surface Disinfection
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Solution Overview
Problem
Healthcare facilities face continuous, laborious, and expensive efforts in disinfecting surfaces to prevent the transmission of microorganisms, despite existing disinfectants providing quick log reduction but lacking long-lasting antimicrobial capabilities.
Innovation Solution
A cleaning composition combining a disinfectant with a silane quaternary ammonium ion or salt that bonds to surfaces, providing both immediate disinfection and long-term antimicrobial protection, packaged in an aerosol can for efficient application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional disinfectants are used to achieve quick log reduction of microorganisms, then immediate disinfection effect is improved, but long-lasting antimicrobial protection is not provided requiring continuous disinfection
Solution Approach 1:
The patent combines a quick-acting disinfectant (ortho-phthalaldehyde) with a long-lasting antimicrobial component (silane quaternary ammonium compound) into a single composition. The disinfectant provides immediate log reduction of microorganisms while the antimicrobial component adheres to the surface to provide sustained protection, thereby resolving the contradiction between fast disinfection and long-lasting protection.
Solution Approach 2:
The cleaning composition is a composite formulation containing both a disinfectant agent and an antimicrobial compound with different functional properties. The disinfectant component delivers rapid microbial kill, while the silane quaternary ammonium compound provides prolonged residual activity, creating a material that simultaneously achieves both fast action and extended duration.
2Reliability
If continuous disinfection is performed to maintain surface cleanliness, then microorganism transmission prevention is improved, but labor and material costs increase
Solution Approach 1:
The silane quaternary ammonium compound in the composition performs preliminary action by adhering to the surface and creating a long-lasting antimicrobial barrier. This preliminary protective layer reduces the frequency of subsequent disinfection applications needed, thereby maintaining reliability while improving productivity by reducing continuous labor and material投入.
Solution Approach 2:
The antimicrobial component provides self-service functionality by continuously protecting the surface against microorganisms after a single application. The silane quaternary ammonium compound remains active on the surface, automatically preventing microbial transmission without requiring repeated human intervention, thus reducing labor costs while maintaining prevention reliability.
3Productivity
If aerosol can is used for application to speed up the process, then application speed is improved, but device complexity increases
Solution Approach 1:
The patent utilizes an aerosol can delivery system that employs pneumatic principles to propel the cleaning composition as a spray mist. This allows rapid coverage of surfaces including critical and non-critical areas, significantly improving application speed and productivity compared to manual wiping methods, despite the added complexity of the aerosol delivery mechanism.
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
Reduces the need for continuous disinfection, saving labor and material costs by ensuring surfaces remain antimicrobially protected over time, with the aerosol can facilitating quick application on both critical and non-critical surfaces.
Implementation Method 1
an antimicrobial component that adheres and/or bonds to the surface to provide long-term ability to kill microorganisms
Data Source
Figure 1
AI summary
Contents of an aerosol can (10) comprising: a propellant (12); and a solution (14) comprising a silane quaternary ammonium ion or salt thereof, wherein the silane quaternary ammonium ion or salt thereof is one or more of: 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium ion, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride, 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium ion, or 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride. The solution (14), in embodiments, further comprises one or more disinfectants selected from the group consisting of: ortho-phthalaldehyde; peracetic acid; glutaraldehyde; a phenol; hydrogen peroxide; sodium hypochlorite; and any two or more of the following: octyldecyldimethyl ammonium chloride, dioctyldimethyl ammonium chloride, didecyldimethyl ammonium chloride, and n-alkyl (C14 to C16) dimethylbenzyl ammonium chloride. The silane quaternary ammonium ion or salt thereof can constitute 0.05% to 5% by weight of the cleaning composition.