Colored Ostomy Pouch Comfort Layer for Wet Opacity
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Solution Overview
Problem
Existing ostomy pouches fail to address the issue of transparency when wet, particularly those with a greyish comfort layer and transparent front film, leading to visible contents and potential embarrassment, while also lacking racial sensitivity and discretion.
Innovation Solution
The ostomy pouch features a comfort layer with specific color values in the CIE L*a*b* system, ranging from L* = 50.0 to 70.0, a* = +1.8 to +10.0, and b* = -0.9 to +12.0, ensuring low transparency when wet and good visibility under clothing, thus providing discretion and racial sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a white or flesh-coloured pouch is used to match skin tone, then the pouch becomes less noticeable on the body, but the pouch cannot provide colour coding for different ostomy types
Solution Approach 1:
The pouch is divided into multiple coloured panels (first panel, second panel, third panel) that can be selectively positioned. This segmentation allows the pouch to provide colour coding information while maintaining overall skin-tone matching, as different coloured panels can indicate different ostomy types or conditions.
Solution Approach 2:
Specific local areas of the pouch (the coloured panels) are given different properties (distinct colours) from the rest of the pouch (white or flesh-coloured material). This allows colour coding to be provided in specific locations without compromising the overall skin-tone matching and aesthetic appearance of the pouch.
2Adaptability or versatility
If coloured pouches are used to indicate different ostomy types, then colour coding is provided, but the pouch becomes more noticeable and less aesthetically pleasing
Solution Approach 1:
Colour coding is implemented in specific localized panels rather than the entire pouch. The majority of the pouch surface remains white or flesh-coloured to match skin tone, while only specific panels display colours to indicate ostomy type, thus maintaining aesthetic appearance while providing necessary information.
Solution Approach 2:
The pouch is segmented into multiple functional zones: coloured panels for information coding and white/flesh-coloured panels for aesthetic matching. This segmentation allows the pouch to simultaneously provide colour coding and maintain skin-tone appearance in different areas.
3Adaptability or versatility
If multiple coloured panels are included in the pouch, then comprehensive colour coding is achieved, but the pouch structure becomes more complex
Solution Approach 1:
The pouch is divided into multiple coloured panels (first, second, and third panels) that can be selectively positioned and configured. This segmentation enables comprehensive colour coding for different ostomy types while maintaining a relatively simple overall pouch structure that is easy to manufacture and use.
Data Source
Figure 1~2
Figure 3
AI summary
An ostomy pouch includes a front wall, a rear wall and an inlet for receiving human waste. The pouch has a comfort layer provided at least on the front wall. The comfort layer on the front wall has a colour with a value in the range L* = 50.0 to 70.0, a* = +1.8 to +10.0 and b* = -0.9 to -9.0 or +0.9 to +12.0 measured in the CIE L*a*b* colour code system.