Modular Rehabilitation Device with Hall Sensor Detection
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Solution Overview
Problem
Existing rehabilitation exercise devices for upper and lower limbs are complex, costly, and cumbersome, making it difficult for elderly or rehabilitation patients with weak muscles to perform effective exercises, especially after wrist and/or shoulder joint surgery, as they require installation and are not easily portable.
Innovation Solution
A simplified rehabilitation exercise device with adjustable mounting angles, a drive module, and a mounting position detecting system using Hall sensors and short-range communication tags, allowing users to easily adjust and position the device for upper or lower limb exercises, enabling normal motion simulation without the need for extensive setup or mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a robotic shoulder apparatus is used for passive rehabilitation, then rehabilitation exercise capability is improved, but device complexity and cost increase
Solution Approach 1:
The device is divided into separate functional modules: a base unit with drive mechanism, and multiple arm units that can be independently assembled. Each arm unit contains its own hinge mechanisms and support structures, allowing the system to be configured for different rehabilitation needs without requiring a completely different device.
Solution Approach 2:
The base unit can support multiple arm units that can be configured for different limbs (upper or lower) and different joint rehabilitation needs. The same base drive mechanism serves multiple functions by working with different arm configurations, reducing overall system complexity and cost.
2Reliability
If a robotic shoulder apparatus is installed for rehabilitation, then rehabilitation effectiveness is improved, but portability and ease of movement deteriorate
Solution Approach 1:
The device consists of a base unit and separate arm units that can be easily assembled and disassembled. This modular structure allows the device to be transported in parts and reconfigured at the destination, significantly improving portability while maintaining rehabilitation effectiveness.
Solution Approach 2:
The device incorporates adjustable and reconfigurable components that can be dynamically adapted to different user needs and exercise types. The arm units can be detached and reattached in different configurations, allowing the device to transition between storage, transport, and operational states efficiently.
3Adaptability or versatility
If multiple hinges and supports are used to support limb positions, then rehabilitation coverage is improved, but device complexity increases
Solution Approach 1:
The hinge mechanisms are designed to serve multiple functions: supporting arm weight, enabling controlled movement, and positioning limbs at various angles. The same hinge structure is used in both upper and lower arm units, reducing the variety of unique components needed while maintaining comprehensive rehabilitation coverage.
Solution Approach 2:
Multiple support functions are integrated into unified hinge assemblies that combine bearing, positioning, and movement control capabilities. The first and second hinges work together as an integrated mechanism to support both arm units, reducing the total number of separate support components required.
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 device allows for convenient and cost-effective rehabilitation exercises that can be performed by users with weak muscles, promoting joint mobility and preventing deformity, while being easily portable and adaptable to different limb conditions.
Implementation Method 1
a sensor module installed in the drive module, and configured to recognize the to-be-detected module when the drive module is mounted on any one of the first hinges and the second hinges
Implementation Method 2
a magnet member embedded in each of the first hinges and the second hinges so that the respective magnet members are located at positions corresponding to each other
Data Source
AI summary
A rehabilitation exercise device for upper and lower limbs includes: a first support supporting a user's hand or foot; a second support supporting a user's forearm or calf; a pair of first hinges rotatably connecting the first support and the second support to each other; a third support supporting a user's upper arm or thigh; a pair of second hinges rotatably connecting the second support and the third support to each other; a drive module selectively mounted on any one of the pair of first hinges and the pair of second hinges, and configured to pivot the first support or the second support; and a mounting position detecting part detecting a mounting position where the drive module is mounted from among the pair of first hinges and the pair of second hinges.