Roll-Formed Stoma Absorbent Sheets for Leakage Reduction
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Solution Overview
Problem
Existing stoma systems require frequent pouch removal and replacement, leading to potential leakage and sterility issues during the process, as well as discomfort and inflammation due to non-sterile conditions.
Innovation Solution
A sanitary stoma system comprising multiple absorbent sheets arranged in a roll with adhesive, allowing hands-free application and removal, featuring a lanyard for easy handling, biodegradability, hypoallergenic properties, and odor-reducing treatments to minimize leakage and inflammation during barrier changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pouch removal and replacement is performed frequently, then waste collection capacity is maintained, but sterility is compromised and leakage risk increases
Solution Approach 1:
The absorbent component is segmented into multiple individual sheets (at least eight sheets) that can be used sequentially. Each sheet is a separate unit that can be independently applied and removed, allowing the barrier to remain in place while absorbent capacity is replenished. This segmentation enables maintaining sterility of the barrier while extending the overall functional duration without frequent complete replacements.
Solution Approach 2:
Multiple absorbent sheets are pre-assembled in a wound roll configuration before use. This preliminary arrangement allows the user to simply unroll and apply successive sheets without needing to prepare or handle multiple separate components during the procedure. The pre-rolled format enables quick, sterile application of additional absorbent capacity without compromising the sterility of the barrier or requiring frequent complete pouch changes.
2Quantity of substance
If barrier and pouch are removed and replaced frequently, then waste absorption capacity is maintained, but leakage occurs during the replacement process
Solution Approach 1:
The absorbent function is segmented into multiple replaceable sheets that can be added without removing the barrier. Each sheet provides additional absorbent capacity, and when one sheet becomes saturated, another can be applied on top or adjacent to it. This eliminates the need to remove the entire barrier-pouch assembly, preventing leakage during replacement while maintaining adequate absorbent capacity through cumulative sheets.
Solution Approach 2:
The barrier remains continuously in place providing ongoing sealing and protection, while absorbent sheets are added sequentially to maintain absorption capacity. This continuous presence of the barrier eliminates gaps during replacement operations that would otherwise cause leakage, while the cumulative absorbent sheets ensure adequate waste absorption throughout extended wear periods.
3Ease of operation
If non-sterile conditions occur during pouch changes, then replacement procedure is simplified, but inflammation and discomfort increase
Solution Approach 1:
By segmenting the absorbent component into separate sheets that can be applied without removing the barrier, the procedure maintains sterile conditions at the stoma site. The barrier remains in place as a sterile barrier, and only the external absorbent sheets are manipulated. This segmentation allows for simple, quick sheet application while preventing non-sterile exposure that would cause inflammation and discomfort.
4Ease of operation
If multiple absorbent sheets are arranged in a roll with adhesive, then hands-free application is enabled, but device complexity increases
Solution Approach 1:
Multiple absorbent sheets are merged into a single wound roll structure with adhesive backing. This combining of multiple functional units into one integrated component enables hands-free application - the user simply applies the entire roll or sections of it without needing to handle individual sheets or manage separate adhesive applications. The complexity is consolidated into a single manufactured component rather than requiring complex user assembly procedures.
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
The system effectively contains and absorbs bodily fluids, reduces leakage and inflammation, and maintains sterility during pouch changes, enhancing user comfort and hygiene.
Implementation Method 1
The outermost absorbent sheet includes an adhesive such that the sanitary stoma system is configured into a stable roll useful for being placed upon a stoma of a user
Implementation Method 2
a plurality of absorbent sheets are arranged in a linear fashion and removably connected end to end such that the plurality of absorbent sheets is assembled together in a wound roll... configured to absorb urine
Data Source
AI summary
A sanitary stoma system including at least eight absorbent sheets, with each of the sheets including absorbent plies. The plurality of absorbent sheets is arranged in a linear fashion and removably connected into a roll. The outermost absorbent sheet includes an adhesive such that the sanitary stoma system is configured into a stable roll useful for being placed upon a stoma of a user to absorb and contain bodily fluids excreted from the stoma, which may include urine or feces. Preferably, the sanitary stoma system is packaged in multiples of three and the sanitary stoma system is affixable to an abdomen of the user, configured to absorb bodily excretions.