Upper Limb Rehabilitation Robot With Rotating Shaft And Variable Damper
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Solution Overview
Problem
Existing upper limb rehabilitation robots are limited in providing multifunctional and multipurpose rehabilitation exercises, such as horizontal, inclined, and vertical motions, and various functions like active, manual, and resistant motions, and are often expensive due to import costs.
Innovation Solution
An upper limb rehabilitation robot design featuring a base frame with a rotatably connected connecting support, a connecting shaft unit, a link unit with an upper limb connector, an active actuator for rotation, and a manual actuator generating resistant torque, allowing for adjustable exercise paths and resistance levels through a variable damper, along with a lifter for vertical position adjustment and a calculating unit for control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If upper limb rehabilitation robots provide various types of rehabilitation motions (horizontal, inclined, vertical) and functions (active, manual, resistant, assistant), then the rehabilitation effectiveness is improved, but the device cost increases due to import costs and complex design
Solution Approach 1:
The patent implements a universal rehabilitation robot system where a single device can perform multiple rehabilitation functions (horizontal, inclined, vertical motions and active, manual, resistant, assistant modes) through a unified mechanical structure with adjustable parameters, eliminating the need for separate specialized devices and reducing overall system cost
2Adaptability or versatility
If upper limb rehabilitation robots provide various types of rehabilitation motions (horizontal, inclined, vertical) and functions (active, manual, resistant, assistant), then the rehabilitation effectiveness is improved, but the device complexity increases
Solution Approach 1:
The patent employs dynamic adjustment mechanisms that allow the mechanical structure to reconfigure between different rehabilitation modes (horizontal, inclined, vertical) and functions (active, manual, resistant, assistant) through movable components and adjustable parameters, enabling a single structure to perform multiple functions without requiring separate complex mechanisms for each mode
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 comprehensive and customizable upper limb rehabilitation exercises, reducing physical load on caregivers and providing standardized exercise tracking, while being more cost-effective by allowing for local production and use of various motion types and functions.
Implementation Method 1
an active actuator that is disposed at a side of the connecting support, connected with the connecting shaft unit, and rotates the connecting shaft unit
Implementation Method 2
a manual actuator that is connected to the connecting shaft unit and generates resistant torque against rotation of the connecting shaft unit
Data Source
AI summary
There is provided an upper limb rehabilitation robot including: a base frame that has a side to which a connecting support is rotatably laterally connected; a connecting shaft unit that is rotatably disposed at a side of the connecting support; a link unit that has a side coupled to the connecting shaft unit and the other side with an upper limb connector mounted to enable a person who needs rehabilitation to connect an upper limb; an active actuator that rotates a connecting shaft unit; and a manual actuator that generates resistant torque against rotation to the connecting shaft unit.