Ostomy Adhesive Wafer Zone Thickness for Removal
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Solution Overview
Problem
Existing ostomy adhesive wafers are difficult to remove from the skin due to their thin design, which makes them challenging for users to peel off comfortably.
Innovation Solution
The ostomy appliance features an adhesive wafer with distinct zones, where the third zone is significantly thicker than the second zone, facilitating easier detachment by providing a tactile identification and grip point, and incorporating a notch for a rolling motion to aid in peeling, allowing for a combination of thin wafer comfort and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adhesive wafer is made thin for comfort, then user comfort is improved, but ease of removal deteriorates
Solution Approach 1:
The adhesive wafer is divided into multiple zones with different thicknesses: a first zone (central area) with thin thickness for comfort, and a second zone (peripheral area) with greater thickness for ease of removal. This segmentation allows each zone to serve its specific function independently.
Solution Approach 2:
Different regions of the adhesive wafer are given different local properties: the central first zone maintains thin thickness to be comfortable and unnoticeable during body movements, while the peripheral second zone has increased thickness to provide tactile identification and grip points for easy removal by the user.
2Ease of operation
If the adhesive wafer is made thin for comfort, then comfort during movement is improved, but difficulty of peeling increases
Solution Approach 1:
The adhesive wafer structure is segmented into functional zones with different thicknesses, adding complexity only where needed at the periphery while keeping the central area simple and thin for comfort.
Solution Approach 2:
The increased thickness and structural features are applied locally only to the peripheral second zone where they are needed for peeling, rather than throughout the entire wafer, thus minimizing overall structural complexity.
Data Source
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AI summary
An ostomy appliance comprising an adhesive wafer (100), which comprises a first, a second and a third zone (102, 104, 106). The third zone defines at least a part of the outer rim (110) of the adhesive wafer and the second zone encirculates the first zone.