Adjustable-Axis Bilateral Rehabilitation Device for Home Use
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Solution Overview
Problem
Current rehabilitation devices for upper and lower limbs are limited in versatility, requiring multiple devices for different motor gestures and are not adaptable for use in domestic settings, lacking configurability and portability.
Innovation Solution
A bilateral rehabilitation device with adjustable rotation axes and interchangeable grip accessories, allowing versatile movement configurations and compatibility with domestic environments, featuring a compact design and electronic control for customizable rehabilitation programs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple specific devices are used to support different motor gestures, then versatility is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements a single rehabilitation device capable of performing multiple motor gestures through adjustable rotation axes and interchangeable grip accessories. The device can be configured to support monolateral and bilateral exercises, upper and lower limb rehabilitation, making one device replace multiple specialized devices while maintaining versatility across different rehabilitation needs
Solution Approach 2:
The device incorporates adjustable rotation axes that can be repositioned to accommodate different movement directions and types. The rotation axes can be dynamically reconfigured between fixed and adjustable positions, allowing the same device structure to adapt to various motor gestures and rehabilitation protocols without requiring multiple dedicated devices
2Adaptability or versatility
If complex bimanual rehabilitation devices are used to allow multiple motor gestures, then versatility is improved, but portability and ease of home use deteriorate
Solution Approach 1:
The device is divided into modular components including a base unit, adjustable rotation axes, and interchangeable grip accessories. This segmentation allows the device to be compact, portable, and easily stored at home while maintaining the capability to perform multiple motor gestures through the combination of different modules
Solution Approach 2:
The patent creates a universal rehabilitation device that can be used in both clinical and domestic settings. The same device structure supports various motor gestures and rehabilitation protocols, eliminating the need for complex hospital-based equipment while maintaining versatility for different patient needs and exercise types
3Device complexity
If fixed-direction movement guides are used, then structural simplicity is maintained, but adaptability to different motor gestures deteriorates
Solution Approach 1:
The device transitions from fixed-direction guides to dynamic, adjustable rotation axes that can be repositioned to accommodate different movement directions. The rotation axes can be adjusted between fixed and variable positions, allowing the structure to maintain simplicity while adapting to various motor gestures and rehabilitation requirements
Data Source
AI summary
A device for bilateral rehabilitation of a user's limbs, includes a main body connected to a base, a first motor and a second motor supported by the main body, a first and second rotary interfaces supported by the main body rotatably operable about first and second rotation axes by the motors. Grip accessories have a grip portion and a coupling portion couplable to the first and second rotary interfaces. An electronic control device is configured to control rotary movements and torques applied to the first and second rotary interfaces depending on angular positions or torques detected by a position or torque detector. The main body is connected to the base by an adjustable and lockable joint allowing adjustment and locking of the position of the main body with respect to the base in at least three different body positions with different orientations of the first and second rotation axes.