Wrist Brace Edge Inserts for Skin Irritation
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Solution Overview
Problem
Wrist braces often cause skin irritation and discomfort due to friction at the web space and thumbhole areas, especially during motion, which is exacerbated by swelling or pathological conditions, and existing designs do not adequately address these issues.
Innovation Solution
The use of customizable inserts made from softer, more flexible materials, such as foam or fabric, that can be attached to the wrist brace using various methods like stitching, adhesives, or Velcro, to provide cushioning and reduce friction in the thumbhole and web space areas, including donut-shaped, saddle-shaped, and hollow inserts with compressible materials and adhesive layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a wrist brace is used to provide compression and support, then structural support and compression are improved, but skin irritation and friction discomfort occur at the web space and thumbhole areas
Solution Approach 1:
The patent applies different material properties to different regions of the wrist brace. Specifically, softer, more compliant materials are used at the web space and thumbhole areas where skin irritation occurs, while maintaining the original supportive materials in other regions. This localized material differentiation resolves the contradiction by providing comfort where needed without compromising overall structural support.
Solution Approach 2:
The patent introduces an intermediary layer or material between the brace structure and the skin at critical contact points. This intermediary material acts as a buffer that reduces direct friction and irritation while allowing the brace to maintain its supportive function. The intermediary layer mediates between the hard structural requirements and the soft skin comfort requirements.
2Adaptability or versatility
If the hand is swollen or tender due to injury or pathological conditions, then vulnerability to irritation increases, but friction and rubbing from thumb motion during pitching motion worsen skin irritation
Solution Approach 1:
The patent modifies the material parameters (softness, compliance, friction coefficient) of the brace materials in contact with the hand. By changing these parameters to be softer and more compliant, the brace can adapt to swollen or tender conditions without causing excessive friction or irritation during motion.
3Strength
If stitching (binding) around the edge of the thumbhole is used to join materials, then structural integrity is improved, but skin irritation occurs at the stitching location
Solution Approach 1:
The patent applies softer, more compliant materials specifically at the stitching and binding locations around the thumbhole. This localized material change maintains the structural integrity provided by the stitching while reducing the irritating effect of the stitching on the skin.
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
These inserts significantly reduce skin irritation and discomfort by providing additional cushioning and support, allowing for improved flexibility and comfort during use, particularly in areas prone to rubbing and swelling.
Implementation Method 1
an insert of compressible cushion material to reduce irritation and discomfort to a user
Implementation Method 2
an adhesive layer may be provided on the insert to secure the insert to a wrist brace
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 3
AI summary
A flexible support including a body configured to provide anatomical support to a user's appendage, and an insert extending along at least a portion of an edge of the flexible support to reduce irritation and fitment discomfort to the user's appendage from the edge. A cushioning material may form part of the edge of the insert.