Ostomy Base Plate With Variable Adhesive Thickness
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Solution Overview
Problem
Conventional ostomy base plates face challenges in adapting to irregular skin topographies, particularly bulges or hernias, leading to misalignment, detachment, and difficulty in application due to rigid designs and lack of flexibility.
Innovation Solution
An adaptable ostomy base plate featuring a flexible top film with a skin-friendly adhesive and a reinforcement ring, allowing for inversion from a convex to a concave shape, with concentric undulations that facilitate stretching and compacting to fit various skin contours, reducing the risk of detachment and improving application control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rigid design is used for the ostomy base plate, then manufacturing precision is improved, but adaptability to irregular skin topographies deteriorates
Solution Approach 1:
The patent applies a flexible top film with variable adhesive thickness to create a base plate that can conform to irregular skin surfaces. The flexible material allows the base plate to adapt to bulges and hernias while maintaining consistent manufacturing specifications for the adhesive layer application.
Solution Approach 2:
The patent implements variable adhesive thickness with ridges of higher adhesive thickness and valleys of lower adhesive thickness. This local variation in adhesive properties allows different regions of the base plate to adapt to different skin topographies, with thicker adhesive areas providing extra compliance for irregular surfaces.
2Ease of manufacture
If a uniform adhesive thickness is used, then manufacturing simplicity is improved, but reliability of attachment to irregular skin surfaces deteriorates
Solution Approach 1:
The patent creates local variations in adhesive thickness through a controlled application process that deposits adhesive in a pattern of ridges and valleys. This local quality variation enhances attachment reliability on irregular skin by providing thicker adhesive in areas that need extra compliance without requiring complete re-engineering of the manufacturing process.
3Strength
If the base plate is made rigid for structural stability, then strength is improved, but ease of operation during application deteriorates
Solution Approach 1:
The patent uses a flexible top film that provides both structural integrity and operational flexibility. The film's inherent flexibility allows the base plate to be easily applied and conform to skin surfaces during operation, while maintaining sufficient strength for structural stability when attached.
Solution Approach 2:
The patent incorporates a reinforcement ring that can be selectively positioned or configured to provide dynamic structural support. This allows the base plate to transition between a more flexible state during application and a more stable state during use, optimizing both ease of operation and structural strength.
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 adaptable design enhances user control during application, reduces the risk of lifting and detachment, and provides a secure, tailored fit to irregular skin surfaces, improving the overall application process and wear comfort.
Implementation Method 1
an adhesive composition and at least one release liner, the adhesive composition comprising a substantially homogeneous mixture of 25-60% of one or more polyisobutylenes, 3-35% of one or more styrene copolymers, and 20-60% of one or more hydrocolloids
Data Source
AI summary
An ostomy base plate has undulations formed in an adhesive composition to provide the adhesive composition with valleys of relatively lower adhesive thickness and ridges of relatively higher adhesive thickness.