Adjustable Arm Support for Shoulder Subluxation
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Solution Overview
Problem
Existing arm support systems for stroke patients are often uncomfortable, difficult to use, and inadequate in providing dynamic support, leading to shoulder subluxation and pain, which hinders rehabilitation. They often immobilize the arm, causing further complications and discomfort.
Innovation Solution
A novel arm and shoulder support system that includes an adjustable belt and arm cuff to maintain the arm in a stable orientation, with a cushioned shoulder component and grip to reduce pain, allowing for natural arm movement and proper alignment, and features like a posterior assist band to minimize internal humeral rotation, along with a belt system that provides consistent pressure and is easy to don and adjust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional slings and arm support systems are used to stabilize the shoulder complex, then the arm is held in a fixed position, but the arm becomes immobilized causing further complications and discomfort
Solution Approach 1:
The support system transitions from a static, fixed-position sling to a dynamic system that allows controlled arm movement. The adjustable straps and positioning mechanisms enable the arm to move within a therapeutic range while maintaining shoulder stability, resolving the contradiction between immobilization and movement freedom.
Solution Approach 2:
The system allows adjustment of support parameters such as strap tension, arm angle, and positioning depth. These adjustable parameters enable the device to adapt to different stages of rehabilitation, providing stable support when needed while allowing increased movement as the patient recovers.
2Reliability
If traditional arm support systems are used, then the arm is positioned for shoulder support, but the systems are uncomfortable and difficult to use
Solution Approach 1:
The support system uses flexible, conforming materials such as padded straps and soft positioning elements that adapt to the patient's body shape. This flexibility provides reliable shoulder support while enhancing comfort and ease of use, eliminating the rigidity and discomfort of traditional hard slings.
Solution Approach 2:
The adjustable design allows patients to independently modify the support system to their comfort level, making it easier to use without requiring constant caregiver assistance while maintaining effective shoulder support.
3Adaptability or versatility
If traditional slings with adjustable straps are used, then the lower arm can be positioned within a certain angular range, but the range is limited by the sling structure
Solution Approach 1:
The support system is divided into separate, adjustable components including individual straps for different arm positions, modular positioning elements, and independent adjustment mechanisms. This segmentation allows a wider range of arm positions to be achieved while keeping each component relatively simple in design.
Data Source
AI summary
A contouring arm and shoulder support is provided that is secured to a supporting and stabilizing belt. The support system includes a belt support and an arm support that are operably interconnected and yet easily disassociated. The arm support provides dynamic support that allows the patient to move their injured arm if needed.