Modular Respiratory Mask Assembly with UV-Cleanable Facepiece
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Solution Overview
Problem
Existing respiratory masks are often bulky, visually obtrusive, and not easily cleaned or sterilized, limiting their universal suitability and effectiveness, especially in general use beyond specialized applications.
Innovation Solution
A modular half-face respiratory mask assembly with interchangeable components, including a transparent facepiece susceptible to UV sterilization, and a face shield that can replace the mask cover, allowing for easy cleaning and customization, along with adjustable head straps and integrated filter and exhaust assemblies for improved fit and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional respiratory masks are designed for high filtration performance, then protection level is improved, but the masks become bulky and visually obtrusive
Solution Approach 1:
The mask is divided into separate functional modules: a rigid structural frame providing filtration support, flexible side panels for sealing, and interchangeable filter cartridges. This segmentation allows each component to be optimized independently, reducing overall bulk while maintaining protection level.
Solution Approach 2:
The mask incorporates adjustable head straps and flexible side panels that can adapt to different face shapes and sizes. The filters are designed with flexible mounting mechanisms that allow them to conform to the wearer's face, reducing the need for excessive bulk to achieve proper sealing.
2Reliability
If traditional respiratory masks are designed for specialized applications, then filtration performance is improved, but ease of cleaning and sterilization deteriorates
Solution Approach 1:
The mask structure is segmented into removable filter cartridges and a permanent headpiece. The headpiece can be easily wiped clean and sterilized independently, while filter cartridges can be replaced rather than cleaned, simplifying maintenance while preserving filtration performance.
Solution Approach 2:
The mask incorporates transparent or translucent panels that allow visual inspection of the internal structure and filter condition. This transparency facilitates detection of contamination and ensures thorough cleaning coverage, improving ease of verification while maintaining filtration integrity.
3Strength
If traditional respiratory masks are designed with fixed components, then structural integrity is improved, but adaptability to different uses deteriorates
Solution Approach 1:
The mask frame is designed as a universal platform that can accommodate multiple types of filter cartridges (particulate, gas, vapor). The standardized mounting interface allows users to switch between different filter types based on application requirements, providing adaptability while the rigid frame maintains structural integrity.
Solution Approach 2:
The mask incorporates adjustable head straps with multiple attachment points and flexible side panels that can be positioned to fit different face shapes. This dynamic adjustment capability allows the same structural frame to adapt to various users and conditions without compromising structural strength.
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 modular design enhances usability and hygiene by enabling easy sterilization and customization, providing a more comfortable and visually appealing solution with improved protection from airborne contaminants.
Implementation Method 1
A particular benefit of transparency is that the facepiece is susceptible to UV (ultraviolet) light sterilisation procedures. Opposing surfaces of the facepiece can be sterilised with UV light simultaneously on account of UV light passing through the transparent material of the facepiece.
Data Source
AI summary
A respiratory mask assembly (1000, 1000′) concerns a respiratory mask of the half-face type that covers the nose and mouth of a wearer, having modular construction permitting ready assembly and disassembly, and interchangeability of components, and in particular a mask cover (100) and a face shield (700). A mask cover (100) or face shield (700) is removably fitted to a preferably transparent facepiece (500) on its outwardly-facing side, and a mask stiffener (600) removably fitted to an opposing inwardly-facing side of the facepiece (500). Filter assemblies (300) position and claim these components (100 or 700, 500, 600) together. An exhaust assembly (400) provides an exhalation port from the facepiece (500) and is preferably occluded by the mask cover (100) or face shield (700).