Dual Pivot Hinge Support for Joint Alignment
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Solution Overview
Problem
Joint fatigue, pain, and instability, particularly in hinge joints like the knee and elbow, are common issues due to degenerative wear and damage, for which existing supports often fail to provide adequate alignment, comfort, and motion assistance.
Innovation Solution
A flexible, elastically stretchable framework with a hinge mechanism that stores kinetic energy, comprising a strut component and rotatable arm components, embedded in an elastomeric material to conform to the joint's shape and provide support, alignment, and motion assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid support structure is used to provide joint stability, then joint alignment and support are improved, but flexibility and comfort deteriorate
Solution Approach 1:
The support structure is divided into multiple segments including a framework with multiple bars connected by joints, allowing each segment to move independently while maintaining overall structural integrity and providing both stability and flexibility
Solution Approach 2:
The support transitions from a static rigid structure to a dynamic structure with movable joints that allow controlled motion, enabling the framework to adapt to joint movement while maintaining alignment support
2Stability of the object's composition
If a fixed support structure is used to provide alignment, then joint support is improved, but motion assistance and comfort deteriorate
Solution Approach 1:
The support incorporates movable joints and flexible connections that allow the structure to move with the joint, providing motion assistance while maintaining alignment through the geometric constraints of the framework
Solution Approach 2:
The support structure changes its geometric parameters dynamically as the joint moves, adjusting the configuration of bars and joints to maintain proper alignment while accommodating the full range of motion
3Device complexity
If a simple support structure is used to provide basic support, then device complexity is reduced, but joint stability and alignment deteriorate
Solution Approach 1:
The support uses a segmented framework of multiple bars and joints that achieves stable alignment through geometric configuration rather than complex mechanisms, maintaining simplicity while providing effective support
Solution Approach 2:
The framework structure serves multiple functions simultaneously - providing alignment, support, and controlled motion assistance through its geometric configuration, reducing the need for additional complex components
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 support enhances joint stability and comfort by storing and releasing kinetic energy, aiding natural joint movement, and providing secure fitting and protection for daily and athletic activities, while allowing for flexible movement and rehabilitation.
Implementation Method 1
a flexible, elastically stretchable framework configured to extend across the hinge joint... kinetic energy is stored and returned for use to assist the body in its natural knee movement
Data Source
AI summary
A support for an area of a body having a hinge joint includes: a flexible, elastically stretchable framework configured to extend across the hinge joint of the area of the body; and a hinge mechanism affixed to the framework. The hinge mechanism includes a strut component and a first arm component connected to the strut component such that the first arm component is rotatable relative to the strut component only about a first pivot axis. A second arm component is connected to the strut component such that the second arm component is rotatable relative to the strut component only about a second pivot axis. The strut component is configured to extend with the framework across the hinge joint such that the first pivot axis is located on a first side of the hinge joint and the second pivot axis is located on a second, opposite side of the hinge joint.