Elastic Connecting Module for Motion Assistance Apparatus
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Solution Overview
Problem
Rapidly aging societies face challenges in mobility due to joint problems, necessitating effective motion assistance technologies that reduce effort and alleviate pain during walking.
Innovation Solution
A motion assistance apparatus comprising proximal and distal modules connected by an elastic connecting module that allows for relative motion, enabling assistance with hip, knee, and ankle joint movements, with adjustable preload and rotational capabilities to enhance support and reduce power loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid connection is used between proximal and distal modules, then structural stability is improved, but adaptability to user movement and comfort deteriorates
Solution Approach 1:
The connecting module incorporates an elastic portion that allows dynamic adjustment of the distance between proximal and distal modules, enabling the structure to adapt to user movements while maintaining stability through elastic restoration
2Device complexity
If a fixed-distance connection is used between modules, then structural simplicity is improved, but adaptability to different user activities and conditions deteriorates
Solution Approach 1:
The elastic portion enables the connecting module to dynamically adjust its length based on user activity requirements, providing adaptability without requiring complex adjustment mechanisms
Solution Approach 2:
The distance between proximal and distal modules can be adjusted by changing the elastic portion's extension state, allowing the same structure to adapt to different user needs
3Stability of the object's composition
If the slider and base are permanently connected, then structural stability is improved, but ease of adjustment and customization deteriorates
Solution Approach 1:
The connecting module is divided into separable components (slider and base) that can be easily assembled and disassembled, allowing adjustment while maintaining stability during use
Solution Approach 2:
The connection state can be dynamically changed between connected and disconnected, enabling easy adjustment when needed and stable operation when connected
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 apparatus provides efficient support and assistance for joint movements, improving mobility and reducing effort and pain, while allowing for customizable flexibility and stability based on user activity and balance.
Implementation Method 1
an elastic portion having a length that changes based on a distance between the proximal module and the distal module
Implementation Method 2
the protrusion is configured to, elastically deform toward a central axis of the slider while passing through the closure, and return to an initial state thereof after passing through the closure
Data Source
AI summary
A motion assistance apparatus including a proximal module to be attached to a proximal part of a user, a distal module to be attached to a distal part of the user, the distal module configured to slide relative to the proximal module, and a connecting module configured to detachably connect the proximal module and the distal module is provided.