Lay-flat face shield with single-material headband
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Solution Overview
Problem
Conventional face shields in medical settings face challenges such as shortages, complex manufacturing processes, high production costs, and difficulty in decontamination due to complex designs and use of porous materials, which hinder their effectiveness in preventing the spread of infectious diseases like COVID-19.
Innovation Solution
A face shield system comprising a lay-flat headband and face shield made from a single type of flexible sheet material, allowing for easy assembly, disassembly, and disinfection, with simplified manufacturing and reduced material complexity, enabling quick production and effective decontamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional face shields are constructed with multiple components (plastic shield, foam headband, elastic band, adhesives, fasteners), then the face shield provides full face coverage and protection, but the manufacturing process becomes complex and requires coordination of multiple supply chains
Solution Approach 1:
The patent combines multiple separate components (plastic shield, headband, fasteners, adhesives) into a single integrated face shield structure made from one piece of flexible sheet material. This merging eliminates the need for coordinating multiple supply chains and simplifies the manufacturing process while maintaining full face coverage protection.
Solution Approach 2:
The single flexible sheet material serves multiple functions simultaneously: it provides the protective face shield barrier, forms the headband for securing, incorporates fastening mechanisms, and eliminates the need for separate adhesive and fastener components. This multi-functionality resolves the manufacturing complexity while maintaining protection effectiveness.
2Adaptability or versatility
If conventional face shields include multiple small holes, slots, corners, and folds for shape and functionality, then the face shield provides specific contours and features, but the assembly process requires increased man hours and results in increased shipping and handling costs
Solution Approach 1:
The patent uses a single continuous flexible sheet material that is cut and folded into the final shape, eliminating the need for multiple separate components with holes and slots. The segmentation is achieved through folding patterns rather than separate parts, which maintains shape and functionality while dramatically reducing assembly steps and increasing productivity.
3Ease of operation
If conventional face shields use porous and absorbent materials (foam, elastic) in construction, then the face shield provides comfort and fit, but the materials cannot be completely disinfected and decontaminated
Solution Approach 1:
The patent constructs the entire face shield from a single homogeneous flexible sheet material without incorporating porous foam or elastic components. This homogeneity allows the entire surface to be completely disinfected and decontaminated, eliminating the limitation of non-disinfecable materials while maintaining comfort and fit through the flexible nature of the sheet material.
4Ease of operation
If conventional face shields are pre-assembled with multiple components, then the face shield is ready for immediate use, but the production process slows down and shipping space requirements increase
Solution Approach 1:
The patent uses a flexible sheet material that can be easily stored in a compact, flat state and quickly assembled or deployed when needed. This flexible film approach eliminates the need for complex pre-assembly of multiple rigid components, maintaining ready-to-use availability while dramatically increasing production speed and reducing shipping space requirements.
Data Source
AI summary
A face shield system formed by a lay-flat headband removably joined with a lay-flat face shield. The headband having a first connection feature located at one end of the headband and a second connection feature located at an opposing end of the headband. The second connection feature removably connects with the first connection feature in order to provide a closed headband configured for placement around a user's head. A third connection feature is located between the first and second connection features. The face shield includes a fourth connection feature that removably engages with the third connection feature when the face shield is in a curved configuration in order to removably connect the headband together with the face shield. When the face shield is connected to the head band, a center of the face shield is spaced apart from a face of the user and a center of the headband.