Postoperative Shoulder Exerciser Using Segmented Push Rod and Restrictive Band
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Solution Overview
Problem
There is a lack of portable and affordable rehabilitation equipment for postoperative frozen shoulder patients to exercise and recover external rotation function after shoulder joint operations, relying on expensive and non-portable large-scale rehabilitation equipment.
Innovation Solution
A postoperative functional exerciser comprising a hand push rod, restrictive band, and waist buckle, allowing for portable and cost-effective exercise of the shoulder joint's outward swing function, with a simple structure that includes a wristband, push rod, and banded structures with velcro for adjustable fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large-scale comprehensive rehabilitation equipment is used for functional exercise, then the exercise effectiveness is improved, but the device becomes expensive and non-portable
Solution Approach 1:
The patent divides the rehabilitation equipment into separate functional modules: a push rod component for shoulder exercise, a restrictive band for elbow restriction, and a waist buckle for fixation. This segmentation allows each component to be independently manufactured and assembled, reducing overall device complexity and improving portability while maintaining exercise effectiveness.
Solution Approach 2:
The patent extracts the essential functional elements from large-scale rehabilitation equipment and creates a minimal viable version. By taking out only the necessary components (push rod, restrictive band, waist buckle) and eliminating unnecessary features, the device achieves portability and affordability while preserving the core rehabilitation function for external rotation exercise.
2Reliability
If large-scale comprehensive rehabilitation equipment is used for functional exercise, then the exercise effectiveness is improved, but the device becomes expensive
Solution Approach 1:
The patent employs inexpensive materials and simple construction methods to create an affordable rehabilitation device. The push rod, restrictive band, and waist buckle can be manufactured at low cost using basic manufacturing processes, making the device accessible to patients without requiring expensive medical equipment financing or hospital resources.
Solution Approach 2:
The patent applies material and structural qualities locally where needed. The restrictive band uses elastic material specifically for providing gentle restriction, while the push rod uses rigid material for stable pushing action. This localized quality approach optimizes function while minimizing overall manufacturing cost compared to uniform high-quality construction throughout the entire device.
3Ease of operation
If patients exercise at home without specialized equipment, then portability is improved, but the exercise effectiveness deteriorates
Solution Approach 1:
The patent designs a self-contained rehabilitation device that patients can use independently at home. The push rod, restrictive band, and waist buckle work together as an integrated system that provides proper exercise guidance and restriction without requiring professional supervision or specialized clinic equipment, enabling patients to maintain exercise effectiveness in a home setting.
Solution Approach 2:
The patent creates a universal rehabilitation device that can be used by patients with frozen shoulder in various settings (home, clinic, hospital) and by patients at different stages of recovery. The device performs multiple functions: the push rod provides guided exercise motion, the restrictive band provides elbow restriction, and the waist buckle provides stable fixation, making it applicable across different patient needs and scenarios.
Data Source
AI summary
Disclosed is a postoperative functional exerciser for frozen shoulder. The exerciser includes a hand push rod (1) and a restrictive band (2) for restricting the elbow. The hand push rod (1) comprises a wristband (11) and a push rod (12). One end of the push rod (12) is connected with the wristband (11). When the hand push rod (1) and the restrictive band (2) are in operation, a part of the restrictive band (2) winds around the elbow joint of an affected arm, the other part winds around a waist buckle (3) at a waist portion of the restrictive band (2) on a side opposite to the affected arm, and the wristband (11) is sleeved on the wrist of the affected arm. The upper arm is tied to the body by means of the restrictive band (2).