Ostomy Pouch Adhesive Molding Access via Segmented Seal
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Solution Overview
Problem
Existing ostomy appliances, particularly one-piece designs, lack adequate access to the moldable adhesive for precise customization around the stoma, making it difficult for users to achieve a snug fit and potentially leading to skin irritation or infection, especially for elderly or non-dextrous individuals.
Innovation Solution
A method for preparing an ostomy appliance with a closable opening in the pouch that allows access to the non-body-facing side of the adhesive, enabling the user to mold and adjust the adhesive for a customized fit, even when the appliance is worn, by incorporating a resealable access aperture and closure system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a one-piece ostomy appliance is used with permanent attachment around the stoma aperture, then the appliance structure is simplified and manufacturing is easier, but access to the adhesive for molding is restricted and fitting precision deteriorates
Solution Approach 1:
The attachment zone is divided into a first arc with permanent attachment and a second arc with initial non-attachment, allowing the pouch to be folded away to provide access to the adhesive while maintaining overall one-piece structure
Solution Approach 2:
The attachment configuration changes from non-permanent to permanent over time, allowing initial access for molding then providing final secure attachment, resolving the contradiction between accessibility and structural integrity
2Ease of operation
If a hybrid pouch design with folded-away sections is used to enable adhesive access, then access to the adhesive is improved, but seal vulnerability increases at folding notches and arc junctions
Solution Approach 1:
The attachment zone is segmented into permanent and non-permanent attachment arcs, creating a controlled access point that minimizes structural compromises while enabling adhesive molding access
Solution Approach 2:
The pouch is designed to be folded away during the preliminary molding stage, then permanently attached afterward, allowing access when needed while maintaining seal integrity during use
3Ease of operation
If complete non-permanent attachment is used around the stoma aperture to allow full access, then adhesive molding access is maximized, but appliance stability and secure attachment deteriorate
Solution Approach 1:
The attachment zone is divided into arcs of different attachment characteristics, with the first arc providing stable permanent attachment and the second arc providing temporary access, achieving both stability and accessibility
Solution Approach 2:
Different portions of the attachment zone have different attachment properties - the first arc is permanently attached for stability while the second arc remains non-permanent for access, allowing each region to serve its specific function
Data Source
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AI summary
An ostomy appliance comprises an ostomy pouch having front wall, a rear wall with a stomal aperture, and an adhesive body fitment secured or securable around the stomal aperture. At least a portion of the adhesive of the body fitment is moldable. The front wall of the pouch comprises an access aperture providing access through the pouch interior for molding the adhesive. The access aperture is closable by a closure panel attachable over said access aperture by a peelable/resealable adhesive.