Gait Rehabilitation Device with Dynamic Load Unlocking
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Solution Overview
Problem
Current gait rehabilitation devices lack the ability to respond to abnormal situations, such as falls, due to their inability to adjust loads according to the wearer's conditions, which can lead to inadequate responses during such events.
Innovation Solution
A gait rehabilitation device with a rotation control portion that unlocks the locking between the load providing portion and the rotation member, allowing the wearer to move freely in abnormal situations by removing the applied load, utilizing a rotary damper, solenoid stroke, and sensors for abnormal situation detection and displacement monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a load providing portion is used to provide rehabilitation load to the wearer, then rehabilitation effectiveness is improved, but the device cannot respond to abnormal situations such as falls
Solution Approach 1:
The rotation control portion dynamically changes the coupling state between the load providing portion and rotation member based on detected situation. In normal conditions, the coupling portion engages with the recess to transmit load for rehabilitation. When abnormal motion is detected, the coupling portion disengages from the recess to release the load, allowing free movement for safety.
Solution Approach 2:
The abnormal situation detection portion continuously monitors the wearer's motion state and provides feedback to the rotation control portion. This feedback mechanism enables the system to automatically switch between rehabilitation mode (coupled) and safety mode (uncoupled) based on real-time detection of normal versus abnormal movements.
2Reliability
If the rotation control portion is added to unlock locking between load providing portion and rotation member, then safety in abnormal situations is improved, but device complexity increases
Solution Approach 1:
The coupling portion acts as an intermediary mechanical element between the load providing portion and rotation member. It physically engages with the recess to transmit torque during normal operation and can disengage to release the connection during abnormal situations, serving as a simple yet effective safety mechanism.
Solution Approach 2:
The rotation control portion automatically responds to abnormal situations detected by the detection portion without requiring external intervention. The system self-manages the coupling and uncoupling actions based on real-time motion detection, eliminating the need for manual control or complex additional safety systems.
3Productivity
If existing gait rehabilitation devices are used, then basic rehabilitation function is provided, but they lack customized training support reflecting physical characteristics
Solution Approach 1:
The device provides customized rehabilitation by adapting the load characteristics to the specific physical conditions and rehabilitation needs of each wearer. The rotation control portion enables different operational modes that can be tailored to individual recovery stages, injury types, and physical capabilities, moving away from one-size-fits-all approaches.
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
Enables the wearer to respond effectively to abnormal situations by removing the load applied during events like falls, enhancing safety and adaptability of the device for daily use.
Implementation Method 1
the load providing portion is a rotary damper
Implementation Method 2
the coupling portion is a solenoid stroke
Data Source
AI summary
The present disclosure relates to a gait rehabilitation device, and the gait rehabilitation device according to the present disclosure includes a load providing portion (200) including a body (210) and a rotating shaft (220) which rotates relative to the body (210) to generate a load, wherein the rotating shaft (220) is coupled to a side of a human body, a rotation member (300) rotatably coupled to the body (210) and coupled to an opposite side of the human body, and a rotation control portion (400) to allow or disallow the rotation member (300) to rotate relative to the load providing portion (200).