Disinfection Cap With Mechanochromic Completion Indicator
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Solution Overview
Problem
Current NFC-disinfecting devices lack visual indicia of disinfection process completion, leading to potential hub and catheter contamination and increased risk of catheter-related bloodstream infections due to incomplete disinfection.
Innovation Solution
A disinfecting device with a deformable portion and mechanophoric material that changes color or breaks upon mechanical force, indicating disinfection completion, combined with a rotatable design and snap-fit flanges for secure attachment to medical connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current NFC-disinfecting devices are used without visual indicia, then the device structure remains simple, but the reliability of disinfection completion is compromised leading to potential contamination
Solution Approach 1:
The patent incorporates a color-changing indicator that transitions from red to green as the disinfecting solution is consumed, providing visual feedback on disinfection completion. This resolves the contradiction by adding reliability through visual indicia while maintaining relatively simple device structure through the use of a straightforward color-change mechanism integrated into the solution container.
Solution Approach 2:
The patent introduces an intermediary indicator system that mediates between the disinfecting solution and the user, providing information about disinfection status without requiring complex electronic or mechanical systems. The color-changing indicator acts as this intermediary, translating the chemical state of the solution into visible information.
2Object-affected harmful factors
If no visual indicia are provided for disinfection process completion, then the device complexity is reduced, but the risk of hub and catheter contamination increases
Solution Approach 1:
The color-changing indicator directly addresses the contamination risk by providing clear visual signals of disinfection progress. The transition from red (incomplete) to green (complete) eliminates ambiguity about whether proper disinfection has occurred, thereby reducing contamination risk without requiring complex monitoring systems.
Solution Approach 2:
The visual indicator provides immediate feedback to the user about the disinfection status, allowing real-time assessment of whether the procedure is complete. This feedback mechanism reduces contamination risk by preventing users from discontinuing disinfection prematurely, while maintaining simple device architecture.
3Loss of information
If the deformable portion is made frangible for clear indication, then the visual indication of disinfection completion is enhanced, but the structural integrity of the housing is reduced
Solution Approach 1:
The frangible portion is localized to a specific weak point in the housing wall, while the rest of the housing maintains full structural integrity. This allows the housing to provide clear visual indication through controlled breakage at the indicator location without compromising the overall strength and containment function of the housing structure.
Solution Approach 2:
The housing is segmented into a strong main body and a weak indicator portion. The frangible section is designed as a separate, sacrificial element that breaks to provide information, while the remainder of the housing continues to provide structural support and containment for the disinfecting solution.
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
Provides clear visual indication of disinfection completion, ensuring thorough disinfection of medical connectors and reducing the risk of contamination and infections.
Implementation Method 1
the deformable portion comprises a mechanophoric material... the mechanophoric material is a mechanochromic material
Implementation Method 2
a porous material received within the interior... the disinfecting solution is received within the porous material
Data Source
AI summary
Provided herein is a disinfecting device, including a housing having a proximal end, a distal end having an opening therein, and a sidewall therebetween defining an interior in fluid communication with the opening, one or more flanges arranged at the distal end of the housing, and a disinfecting solution received within the interior, wherein the sidewall includes a deformable portion adjacent the distal end.