Finger Rehabilitation Aid Using Segmented Brackets and Rubber Sheath
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Solution Overview
Problem
Current finger joint rehabilitation devices lack flexibility and precise adaptation to individual finger structures, which can hinder effective rehabilitation exercises, especially for patients with finger paralysis due to central nervous injuries.
Innovation Solution
A finger joint rehabilitation exercise aid comprising a rubber part with strategically positioned small, middle, and large brackets, along with a power source like a corrugated tube, that is designed to bend and straighten, facilitating synchronized movement and improved flexibility through a ring hole and curved surfaces for better fitting and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid structure is used for the rehabilitation device, then structural stability is improved, but flexibility and adaptation to individual finger structures deteriorates
Solution Approach 1:
The patent employs a rubber part as a flexible shell that envelops the finger, providing both structural support and adaptability. The rubber material allows the device to conform to individual finger shapes while maintaining sufficient structural integrity to transmit mechanical forces for rehabilitation exercises.
Solution Approach 2:
The device is divided into multiple brackets (small, middle, and large) that are distributed along the finger. This segmentation allows each bracket to independently adapt to different portions of the finger while collectively providing stable support, resolving the contradiction between rigidity and flexibility.
2Reliability
If multiple brackets are added to fix the power source, then fixing reliability is improved, but device complexity increases
Solution Approach 1:
The fixing mechanism is segmented into multiple brackets positioned at different locations along the finger. Each bracket provides localized attachment points for the power source, distributing the fixing load and improving reliability without requiring a single complex fixing structure.
Solution Approach 2:
The brackets serve multiple functions: they provide structural support, attach the power source, and adapt to different finger sizes. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity.
3Adaptability or versatility
If the rubber part is made more flexible, then adaptation to finger structures is improved, but structural strength deteriorates
Solution Approach 1:
The rubber part is designed as a flexible shell that maintains sufficient strength through its material properties and geometric configuration. The shell structure provides both the necessary flexibility to adapt to finger contours and the structural strength to transmit mechanical forces during rehabilitation exercises.
Solution Approach 2:
The rubber part is segmented with ring holes that improve flexibility in specific regions while the overall continuous structure maintains structural strength. The segmentation allows localized adaptation without compromising global structural integrity.
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 effectively drives patients' fingers to perform rehabilitation exercises by adapting to different finger lengths and bone structures, enhancing recovery speed and mobility by providing a flexible and supportive mechanism for bending and stretching.
Implementation Method 1
the rubber part is forced by the power source to bend and straighten and drives the patient's fingers to perform exercise
Data Source
AI summary
A finger joint rehabilitation exercise aid part, comprising a rubber part (11), at least one small bracket (12), one middle bracket (13) and one large bracket (14), wherein the small bracket (12), the middle bracket (13) and the large bracket (14) are fixed on the rubber part (11); and a front end of the rubber part (11) is provided with a finger sheath (112), and the patient's finger can reach into the finger sheath (112). As such, according to the finger joint rehabilitation exercise aid part, the rubber part (11) is sheathed on the patient's finger, the power source is fixed by means of the small bracket (12), the middle bracket (13) and the large bracket (14) fixed on the rubber part (11), and the rubber part (11) is forced by the power source to bend and straighten and drives the patient's fingers to perform exercise at the same time, thus helping patients perform rehabilitation training.