Rotational Module for Multi-Plane Limb Rehabilitation
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Solution Overview
Problem
Current robotic rehabilitation systems for stroke recovery require multiple modules to accommodate different training modes, which is time-consuming and labor-intensive, and do not efficiently train multiple limbs and joints in various planes.
Innovation Solution
A robotic training system with a rotational unit and multi-orientational modules that can train different limbs and joints in different planes, allowing for efficient training of multiple joints using a single module without the need to switch out modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple modules are used to accommodate different training modes, then training versatility is improved, but system complexity and setup time increase
Solution Approach 1:
The robotic system employs a universal module design where a single module can accommodate multiple training modes (continuous passive motion, active-assisted movement, active-resisted movement) and train different limbs (upper and lower extremities) through reconfiguration. The module includes adjustable components such as the restraint member attachment points and rotational unit orientations that can be modified to provide different training modes without requiring separate dedicated modules for each function.
Solution Approach 2:
The system utilizes dynamic reconfiguration capabilities where the module structure can be adjusted during or between training sessions. The rotational unit can change orientation angles, the restraint member attachment points can be repositioned, and the module can be rotated to different orientations (0°, 90°, 180°, 270°) to accommodate different training requirements, making the system adaptable without requiring physical replacement of modules.
2Adaptability or versatility
If multiple modules are switched out for different training modes, then training versatility is improved, but time consumption and labor intensity increase
Solution Approach 1:
The single universal module eliminates the need to physically switch between multiple dedicated modules for different training modes. The module can be reconfigured in-place to accommodate continuous passive motion, active-assisted movement, active-resisted movement, and training of different limbs, significantly reducing the time and effort required compared to module replacement.
Solution Approach 2:
The module is designed with pre-configured attachment points, adjustable restraint members, and rotatable components that can be quickly repositioned between training modes. The rotational unit can be pre-adjusted to different orientations, and the restraint member attachment points are positioned to allow rapid reconfiguration, minimizing setup time when transitioning between different training exercises.
3Device complexity
If a single module is used for multiple joints and limbs, then system simplicity is improved, but adaptability to different training planes decreases
Solution Approach 1:
The rotational unit enables the module to operate in multiple spatial planes by rotating to different orientations (0°, 90°, 180°, 270°). This dimensional transformation allows a single module to train different joints (shoulder, elbow, wrist for upper extremities; hip, knee, ankle for lower extremities) by changing the orientation of the restraint member relative to the patient's limb, effectively covering multiple training planes without requiring separate modules for each plane.
Data Source
AI summary
The present invention relates a system and method to allow users to train different joints of a limb in different planes. The rotation of the system can be driven by a motor to assist or resist the motion for training purpose. By the present invention, the user can use the device to switch training between the vertical and horizontal planes, without changing the device and any module. The system is also adjustable to meet different users' body sizes.