Luminescent Hand Decontamination System with UV Feedback
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Solution Overview
Problem
Current decontamination methods, particularly in hospital settings, are inefficient in ensuring thorough removal of biological or chemical hazards from hands due to soap-application biases and cumbersome processes, leading to inadequate coverage and compliance issues.
Innovation Solution
A system comprising a luminescent agent applied to hands, a water dispenser, and a light source emitting radiation in the 315-400 nanometer range, allowing real-time visualization of residual contaminants during washing, ensuring thorough decontamination without interrupting the washing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hand-washing methods are used, then the process is simple and quick, but the decontamination effectiveness is insufficient due to soap-application biases and inadequate coverage
Solution Approach 1:
The patent employs a luminescent marker that emits light under UV illumination to visually indicate the presence and distribution of soap on hands. This color/optical change allows users to immediately see whether soap has been applied uniformly and whether residue remains after washing, thereby ensuring adequate coverage and decontamination effectiveness without requiring complex instrumentation.
Solution Approach 2:
The system provides real-time visual feedback through the luminescent marker that allows users to assess soap application quality and washing effectiveness during the hand-washing process. The marker's luminescence pattern serves as immediate feedback on whether proper decontamination has been achieved, enabling users to adjust their washing technique if necessary.
2Reliability
If thorough hand-washing protocols are implemented, then decontamination quality improves, but compliance decreases due to time consumption and procedural complexity
Solution Approach 1:
The luminescent marker provides immediate visual feedback on soap distribution and residue, allowing users to quickly assess whether they have washed properly without requiring knowledge of complex washing protocols. This simplifies the user's task while maintaining high decontamination standards, thereby improving compliance.
Solution Approach 2:
The luminescent marker is applied to the hands before washing begins, establishing a visual reference for proper soap coverage. This preliminary marking allows users to focus on removing the luminescence through washing rather than worrying about whether they have applied soap correctly in the first place, making the process easier to follow and comply with.
3Reliability
If multiple washing cycles are performed, then contamination removal improves, but the time required increases significantly
Solution Approach 1:
The luminescent marker provides real-time visual feedback that allows users to determine when washing is complete by observing the absence of luminescence. This eliminates the need to perform multiple predetermined washing cycles, as users can stop washing once the visual indicator shows that soap residue has been removed, thereby reducing time while maintaining effective decontamination.
4Measurement precision
If visual inspection of hands is performed, then residual contaminant detection improves, but the inspection process interrupts the washing flow
Solution Approach 1:
The luminescent marker continuously provides visual information about soap residue on the hands during the entire washing process. Users can observe the distribution and removal of luminescence in real-time without needing to pause or interrupt the washing flow, thereby maintaining both high detection precision and washing efficiency.
Solution Approach 2:
The luminescent marker allows visual inspection to occur continuously throughout the washing process rather than requiring separate inspection steps. The marker's persistent luminescence under UV light enables users to monitor soap removal in real-time, maintaining the continuous flow of washing while simultaneously providing precise detection of residual contaminants.
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 enhances decontamination efficiency by allowing users to observe and remove residual luminescent markers in real-time, improving hand hygiene compliance and reducing the risk of infection transmission.
Implementation Method 1
an agent capable of luminescence when exposed to radiation having a wavelength ranging from approximately 315 to 400 nanometers
Implementation Method 2
The light source is actuatable to emit radiation sufficient to cause the agent disposed about the hands of the person to luminesce
Data Source
AI summary
A system for decontaminating the hands of a person is disclosed having a composition with a marker agent capable of luminescence when exposed to light having a wavelength ranging from approximately 315 to 400 nanometers. The composition is disposed in a container capable of receiving the hands of a person therein such that when the hands of the person are placed in the container the hands of the person are immersed in the composition. A water dispenser is provided that operates in conjunction with a light source adapted to emit radiation having a wavelength ranging from approximately 315 to 400 nanometers. A washing event occurs while light is directed towards the location of the washing event.