Ostomy Pouch With Segmented Transparent Window
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Solution Overview
Problem
Current ostomy pouch designs face challenges in providing easy stoma viewing and secure attachment, with opaque sheets being difficult to open fully, obstructing visibility, and causing skin irritation due to improper fitment, while also being prone to damage and environmental contamination.
Innovation Solution
A heart-shaped adhesive collar with a segmented release liner and a detachable stoma viewing mechanism using a flap with a hook and loop fastening system, allowing for easy manipulation and improved visibility, along with a flexible pouch design that reduces leakage and facilitates proper fitment and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an opaque sheet is used to cover the stoma area, then privacy and skin protection are improved, but stoma visibility and ease of viewing are worsened
Solution Approach 1:
The front panel is segmented into an opaque portion and a transparent window portion, allowing the user to view the stoma through the transparent portion while maintaining coverage and privacy through the opaque portion. This segmentation resolves the contradiction by providing both skin protection and stoma visibility simultaneously.
Solution Approach 2:
The front panel has different optical properties in different regions: the majority is opaque for protection and privacy, while a specific local region (transparent window) is transparent for viewing. This local quality differentiation allows the panel to simultaneously provide both skin protection and stoma visibility.
2Ease of manufacture
If a standard circular adhesive collar is used, then manufacturing simplicity is improved, but fitment to irregular stoma shapes and secure attachment are worsened
Solution Approach 1:
The adhesive collar shape is changed from a standard circular form to a custom contoured shape that matches the irregular peristomal anatomy. This parameter change in geometry allows the collar to conform to the patient's specific body contours, improving attachment security and fitment while still being manufacturable through molding processes.
3Strength
If the opaque sheet is fully attached to the pouch, then structural integrity is improved, but ease of opening and manipulation are worsened
Solution Approach 1:
The front panel is separated into an opaque portion and a transparent window portion that are selectively attached to the pouch body. This segmentation allows the transparent window to be easily opened and manipulated for viewing while the main opaque portion remains attached to maintain structural integrity.
Solution Approach 2:
The transparent window portion is extracted or detached from the main opaque panel, allowing it to be independently opened and manipulated. This extraction enables easy access for stoma viewing while the remaining opaque panel maintains the pouch's structural integrity.
4Reliability
If the adhesive collar covers the entire peristomal area, then attachment security is improved, but skin irritation and discomfort are worsened
Solution Approach 1:
The adhesive collar is designed with varying adhesive properties in different regions: stronger adhesive coverage where secure attachment is needed and reduced or non-adhesive areas where skin irritation would occur. This local quality differentiation allows the collar to maintain attachment security while minimizing skin irritation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances stoma visibility and pouch content observation, reduces skin irritation by improving fitment, and minimizes leakage and environmental contamination, while maintaining the pouch's integrity and comfort.
Implementation Method 1
the flap includes or is entirely comprised of either a hook or loop portion of a hook and loop or hook and hook fastening system
Implementation Method 2
a flap that is held closed by adhering to the underlying pouch via a pressure sensitive adhesive
Data Source
Figure 1A~1C
Figure 2
Figure 3
AI summary
Provided herein are methods and devices for performing in situ patterned chemistry for synthesizing and preparing peptide arrays. The invention provides a reproducible and scalable platform that can be potentially used to monitor the health of a plurality of individuals.