Wrist Support Sleeve With Stiff Elastic Insert Panel
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Solution Overview
Problem
Existing wrist support devices are too constraining for individuals without wrist pain or injuries, and they do not adequately protect the wrist from laptop heat or provide sufficient cushioning for universal use.
Innovation Solution
A wrist support device with a sleeve made of resiliently stretchable material and a stiff elastic insert panel, combined with a bead-filled moldable pad, designed to be reversible and less restrictive, providing support and cushioning while maintaining ergonomic wrist position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a semi-rigid splint is used to support the wrist, then wrist support and pain relief are improved, but mobility and comfort for users without injuries deteriorate
Solution Approach 1:
The wrist support device uses different materials with different properties in different regions: a stiff elastic panel (70% polyester, 30% synthetic rubber) across the dorsal wrist for structural support, while the rest of the sleeve uses soft stretchable material (cotton and Lycra) for comfort and mobility. This local differentiation allows the device to provide targeted support where needed while maintaining comfort in other areas.
Solution Approach 2:
The device combines multiple materials with complementary properties: the stiff elastic panel material (polyester-rubber composite) provides structural support and stability, while the soft stretchable sleeve material (cotton-Lycra composite) provides comfort, flexibility, and ease of movement. This composite construction resolves the contradiction between support effectiveness and user comfort.
2Reliability
If a long sleeve with built-in brace is used, then wrist support is improved, but mobility and freedom of movement deteriorate
Solution Approach 1:
The invention extracts the supportive function from a long built-in brace and concentrates it in a shorter stiff elastic panel across the dorsal wrist. The rest of the sleeve is made from soft stretchable material that provides comfort without significant support, allowing the device to be shorter (3.5-5 inches) while maintaining effective wrist support where it is most needed.
3Strength
If stiff material is used across the wrist, then structural support is improved, but flexibility and comfort deteriorate
Solution Approach 1:
The stiff elastic panel is positioned specifically across the dorsal wrist where structural support is most needed to maintain ergonomic alignment and prevent carpal tunnel syndrome. The rest of the sleeve uses soft stretchable material that conforms to the hand and wrist, providing comfort and flexibility. This localized application of stiffness resolves the contradiction between structural support and overall flexibility.
Solution Approach 2:
The stiff elastic panel material is designed to be elastic rather than rigid, allowing it to stretch and flex with wrist movement while maintaining its supportive function. This parameter change from rigid to elastic stiffness allows the material to provide structural support while adapting to dynamic wrist movements and maintaining comfort.
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 device offers improved comfort and mobility for general users by providing support and cushioning without being overly restrictive, protecting the wrist from heat and hard surfaces, and helping to prevent repetitive motion injuries.
Implementation Method 1
a sleeve of a first, resiliently stretchable material
Implementation Method 2
an insert panel of a second material extending between the opposite open ends of the device, the second material comprising a strong elastic material which is stiffer than the first material
Data Source
AI summary
A wrist support sleeve is adapted to extend over a wearer's hand and wrist from a location below the ends of the fingers tip to a position just past the wrist region. The sleeve has an opening for receiving the wearer's thumb. A first portion of the sleeve extends around the lower part and opposite sides of a wearer's hand and wrist and has spaced side edges located in an upper region of the sleeve. An insert panel of a different material to the first sleeve portion is secured between spaced side edges of the first portion, so as to extend across the tipper portion of a wearer's hand and wrist when the device is worn. The insert panel material is a strong elastic material which has a higher stiffness than the rest of the sleeve.