Rotating Stocking Holder Element for Slip-Free Removal
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Solution Overview
Problem
Existing donning aids for stockings, particularly compression stockings, fail to securely hold the stocking in place during removal, causing it to slip off, making it difficult to take off and requiring significant effort, especially for weaker and older individuals.
Innovation Solution
A holding element with a holding area is integrated into the donning and doffing aid to securely fix the stocking relative to the receptacle, preventing slipping and allowing for easy removal by clamping the stocking between the holding area and the receptacle, with adjustable contact pressure and a rotatable design for easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stocking is slipped over the stocking receptacle of a known donning aid, then the stocking can be put on, but the stocking slips off the receptacle due to its own tension during removal
Solution Approach 1:
A holding element is introduced as an intermediary component between the stocking and the stocking receptacle. This holding element features a holding area that contacts the stocking to prevent it from slipping off the receptacle during removal, thereby resolving the contradiction between reliable retention and ease of operation
Solution Approach 2:
The holding element is designed as a detachable, separable component that can be attached to and removed from the stocking receptacle. This segmentation allows the holding element to be independently optimized for its function of securing the stocking while maintaining the simplicity of the overall device
2Reliability
If a holding element is added to fix the stocking on the receptacle, then stocking retention improves, but device complexity increases
Solution Approach 1:
The holding element serves as a simple intermediary component with a basic holding area that contacts the stocking. By keeping the design of this intermediary element simple and focused on its single function of prevention slipping, the overall device complexity is minimized while still achieving reliable stocking retention
Solution Approach 2:
The holding element is designed as a detachable component that can be separated from the main stocking receptacle structure. This extraction approach allows the holding function to be added without permanently complicating the core device structure, maintaining simplicity while improving reliability
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The element (2) has a holding region (20) partially fixing a hose during extension of the hose relative to a hose support of a hose retracting and/or extending aid, where the hose is partially imposed over the support. The element is detachably attached to the aid and moved to the aid relative to the hose support. A surface of the holding region comprises rubber or plastic, and a connection piece (18) varies contact pressure between the holding region and the support. The holding element is rotatably supported at the aid around a rotation axis (22).