Wrist Compression Device for Carpal Tunnel Relief
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Solution Overview
Problem
Current treatments for carpal tunnel syndrome, such as physical therapy, bracing, and surgery, often have drawbacks like high costs, side effects, and diminishing effectiveness over time, and do not comfortably allow for normal daily activities without interfering with hand function.
Innovation Solution
A device that applies lateral compression to the wrist using a mechanism with side arms, a linear member, and a lever arm with a cam to reduce pressure on the median nerve, providing relief from numbness, tingling, and pain by adjusting to fit different wrist sizes and allowing easy use and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional treatments like bracing and physical therapy are used for carpal tunnel syndrome, then pain relief may be achieved, but hand function and normal daily activities are interfered with
Solution Approach 1:
The device segments the treatment approach by applying pressure to specific wrist bones (radius and ulna) rather than using a general wrist brace, allowing targeted relief without restricting overall hand movement and function
Solution Approach 2:
The device extracts the essential therapeutic function (pressure application) from traditional bulky braces, creating a minimalistic solution that provides pain relief through targeted bone pressure without interfering with hand activities
2Reliability
If custom-fitted devices are used to ensure proper pressure application, then treatment effectiveness improves, but device complexity and adjustment difficulty increase
Solution Approach 1:
The device applies pressure to specific local points (wrist bones) rather than distributing pressure across the entire wrist, achieving effective treatment with a simple targeted structure rather than a complex custom-fitted device
Solution Approach 2:
The device uses adjustable pressure parameters through a simple mechanism that allows users to modify the force applied to wrist bones, maintaining treatment effectiveness without requiring complex custom fitting
3Duration of action of stationary object
If permanent or semi-permanent bracing is used to maintain pressure on the wrist, then treatment consistency improves, but ease of removal and reapplication deteriorates
Solution Approach 1:
The device transitions from static permanent braces to a dynamic system that can be easily adjusted, removed, and reapplied while maintaining consistent pressure treatment through simple user-operated mechanisms
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 effectively reduces pressure on the median nerve, alleviating symptoms of carpal tunnel syndrome and ulnar nerve entrapment neuropathy, allowing for comfortable use during daily activities without significant interference, and can be adjusted to fit various wrist sizes.
Implementation Method 1
a lever arm with a cam to reduce pressure on the median nerve
Data Source
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AI summary
A device for applying pressure to a bone of a human arm. The device includes a flexible member having first and second ends, a linear member fixed to the first end and slidingly coupled to the second end, a cam coupled to one end of the linear member and contacting a surface of the second end, and a lever arm coupled to the cam. The lever arm being movable between: a first position in which the cam to apply a first pressure to the surface of the second end of the flexible member; and a second position in which cam applies a second, larger pressure to the surface of the second end of the flexible member causing the second end of the flexible member to move relative to one end of the linear member and reduce a distance between the first end and second ends of the flexible member.