Variable-Thickness Ostomy Adhesive Laminate for Leak-Resistant Sealing
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Solution Overview
Problem
Existing ostomy products face challenges in maintaining a secure seal due to body curvature and skin movement, leading to potential leakage and discomfort.
Innovation Solution
A flexible arcuate laminate with discrete zones of enhanced thickness provides additional adhesive support and flexibility, allowing the securing member to conform to body movements while enhancing moisture absorption and providing tactile feedback for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a uniform thickness laminate is used, then the structure is simple and easy to manufacture, but it cannot provide sufficient adhesive support in high-moisture areas and creates a bulky profile
Solution Approach 1:
The laminate transitions from uniform thickness to variable thickness with discrete zones of enhanced thickness strategically positioned in the adhesive layer. These thicker zones provide additional adhesive support and moisture absorption capacity in areas most exposed to moisture (outer portion), while thinner zones maintain flexibility and reduce bulk where less support is needed (inner portion overlapping the base plate).
2Reliability
If a thicker laminate is used throughout, then adhesive support and moisture absorption are improved, but flexibility is reduced and the device becomes bulkier
Solution Approach 1:
The laminate provides different thicknesses in different regions: the outer portion has discrete zones of enhanced thickness for maximum adhesive support and moisture absorption, while the inner portion maintains a thinner profile to preserve flexibility and allow the securing member to conform to body movements and skin contours.
Solution Approach 2:
The adhesive layer is segmented into discrete zones of enhanced thickness rather than being uniformly thick. This segmentation allows the laminate to provide targeted adhesive support where needed while maintaining overall flexibility through the thinner intervening zones.
3Adaptability or versatility
If the laminate conforms to body movements, then comfort and seal reliability are improved, but the adhesive bond may fail due to stretching and distortion
Solution Approach 1:
The discrete zones of enhanced thickness in the adhesive layer provide localized reinforcement that maintains bond strength in areas subject to stretching, while the thinner zones allow for flexibility and movement accommodation.
Solution Approach 2:
The thicker adhesive zones act as a cushion or buffer that absorbs and distributes the stresses from body movements and skin expansion/contraction, preventing the adhesive bond from failing under mechanical stress.
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 laminate design reduces leakage risks, enhances flexibility, and provides a secure fit by adapting to body movements, ensuring a comfortable and reliable ostomy appliance seal.
Implementation Method 1
The outer portion of the securing member is most exposed to moisture from leakage and thereby benefits from the increased absorbency provided by the pattern of raised zones.
Data Source
AI summary
An adhesive ostomy product securing member for securing an ostomy base plate to the skin. The securing member comprises a flexible arcuate laminate having a radial inner portion, a radial outer portion, and a proximal adhesive surface for securing the laminate simultaneously to the skin of an ostomate and to an ostomy flange. The radial inner portion has a first thickness, and the radial outer portion is provided with a pattern of discrete zones having a second thickness, the first thickness being smaller than the second thickness.