Self-Activating Ostomy Barrier Convexity for Peristomal Topography

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Solution Overview

Problem

Existing ostomy barrier appliances with fixed convexity do not efficiently accommodate the varying topography of stomas and peristomal surfaces, requiring user intervention for adjustment.

Innovation Solution

A self-activating convexity adjusting device that automatically adjusts the convexity characteristics of the ostomy barrier, including depth, slope, compressibility, and tension location, to conform to the user's peristomal skin topography without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed convexity design is used in conventional ostomy barriers, then the manufacturing process is simple and cost-effective, but the barrier cannot efficiently accommodate varying topography of stomas and peristomal surfaces

Engineering Contradiction:
Improveaccommodation of varying peristomal topographyVSAvoidconvexity adjusting mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The convexity of the ostomy barrier is made dynamically adjustable through a mechanical mechanism that allows the user to modify the convexity depth and slope characteristics to match their specific peristomal topography, transforming a static design into a dynamic adaptive system

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The convexity adjusting mechanism is divided into separable components including adjustable convexity elements and support structures that can be independently modified to create customized convexity patterns tailored to different stoma configurations

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If manual adjustment of convexity is required, then the barrier can be customized to fit individual anatomy, but user intervention is needed which increases the complexity of operation

Engineering Contradiction:
Improvecustomization to individual anatomyVSAvoiduser adjustment procedure
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The ostomy barrier incorporates self-adjusting mechanisms that automatically adapt to the user's peristomal topography without requiring manual intervention, allowing the barrier to self-customize its convexity characteristics through inherent mechanical properties

Inventive Principle:
Principle #25Self-service

3Ease of operation

If uniform convexity adjustment is applied across the entire barrier, then the manufacturing and adjustment process is simplified, but localized adjustment of convexity characteristics cannot be achieved

Engineering Contradiction:
Improveadjustment process simplicityVSAvoidlocalized convexity adjustment
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The convexity adjusting mechanism enables localized modification of convexity characteristics at specific regions of the barrier, allowing different areas to have customized convexity depths and slopes tailored to the specific topographic needs of different peristomal surfaces

Inventive Principle:
Principle #3Local quality

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

Provides a self-activating and customizable seal that enhances the adhesive effectiveness by conforming to individual user anatomy, minimizing leakage and improving comfort.

Implementation Method 1

Each of the radially extending members may be configured to be flexed independently according to a force applied to the radially extending member as the skin barrier is pressed against the user's peristomal skin

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250228695A1Ostomy barrier appliance with self-activating adjustable convexity
Publication Date: 2025.07.17 HOLLISTER INCORPORAED
  • US20250228695A1 patent drawing
  • US20250228695A1 patent drawing
  • US20250228695A1 patent drawing

AI summary

A convex ostomy barrier assembly for attaching an ostomy appliance to a peristomal skin surrounding a stoma includes a skin barrier, an inlet opening defined in the skin barrier for receiving the stoma, and a convexity adjusting device. The convexity adjusting device is configured to provide a convexity to the skin barrier and to automatically adjust the convexity according to the topography of user's peristomal skin as the convex ostomy barrier assembly is applied to a user. The convexity adjusting device is configured to provide a localized and customized adjustment of at least one characteristic of the convexity.