Invertible Ostomy Base Plate for Bulge Adaptation
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Solution Overview
Problem
Ostomy appliances struggle to securely attach to bulgy or irregular peristomal skin surfaces, leading to potential leakage and discomfort due to their rigid design and limited adaptability.
Innovation Solution
An adaptable ostomy base plate with a flexible top film and elastic skin-friendly adhesive, featuring a convex shape for initial engagement and invertible concave shape for precise fitting, along with radially extending petals and a reinforcing structure, to accommodate varying skin topographies and minimize folds and wrinkles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rigid ostomy appliance design is used, then manufacturing precision is improved, but adaptability to irregular peristomal skin surfaces deteriorates
Solution Approach 1:
The base plate is designed with dynamic shape-changing capability, transitioning from a pre-formed convex shape during application to an invertible configuration that adapts to the irregular peristomal skin surface. This allows the appliance to maintain manufacturing precision while gaining adaptability to varying skin topographies including bulges and hernias.
Solution Approach 2:
The base plate utilizes changes in physical parameters, specifically shape and configuration, to resolve the contradiction. By incorporating an invertible design that can change from convex to conformal, the appliance maintains consistent manufacturing while adapting to irregular skin surfaces, effectively changing its geometric parameters to match the application surface.
2Adaptability or versatility
If a flexible and invertible base plate design is used, then adaptability to irregular skin surfaces is improved, but device complexity increases
Solution Approach 1:
The base plate is segmented into functional zones including a first section adjacent to the stoma-receiving hole and a second section surrounding the first section. This segmentation allows different portions to perform specialized functions - the first section provides adaptability while the second section provides structural support, reducing overall device complexity through functional division.
Solution Approach 2:
The base plate incorporates a pre-formed convex curvature that mirrors the natural contour of the peristomal area. This curved design, combined with the invertible capability, provides adaptability to irregular skin surfaces while maintaining a relatively simple single-piece structure, avoiding the need for complex multi-component assemblies.
3Reliability
If the base plate is made completely conformal to skin surface, then attachment security is improved, but application control deteriorates
Solution Approach 1:
The base plate is pre-formed with a convex shape during manufacturing that facilitates controlled application. This preliminary shaping allows the user to initially engage the base plate in a predictable manner, maintaining application control, while the invertible design subsequently enables conformal attachment for secure bonding to the peristomal skin surface.
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 application control, reduces leakage risk, and provides a snug fit on bulges or hernias, improving user experience and attachment security.
Implementation Method 1
having at least a first elastic skin-friendly adhesive on a proximal surface of said flexible top film
Data Source
AI summary
We disclose a method of providing a user or a healthcare worker with an ostomy device that is shape-adjustable to conform to skin around a stoma associated with a bulge or a hernia. The ostomy device is configured to invert from a storage configuration to a use configuration by inverting a substantially convex shape of a proximal side of a base plate to a substantially concave shape and stabilizing the base plate in the use configuration by contacting the inner radial periphery of the reinforcing structure with a distal surface of the base plate.