Adjustable Convex Ostomy Barrier for Localized Peristomal Sealing
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Solution Overview
Problem
Conventional convex ostomy barriers have fixed convexity that does not efficiently accommodate the varied topography of stomas and peristomal surfaces, leading to inconsistent sealing effectiveness.
Innovation Solution
A convexity adjusting device for ostomy skin barriers that allows localized adjustment of characteristics such as depth, compressibility, flexibility, and slope, using bi-stable clips to customize the convexity based on individual user's peristomal topography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed convexity depth is used in conventional ostomy barriers, then the manufacturing process is simple, but the adaptability to different peristomal topographies is poor
Solution Approach 1:
The convexity adjusting device is divided into multiple radially extending members (typically 8-16) that can be independently adjusted. Each member corresponds to a specific angular position around the stoma, allowing localized modification of convexity characteristics to match the peristomal topography at that position.
Solution Approach 2:
The barrier transitions from a fixed convexity structure to a dynamic, adjustable one. The radially extending members can be repositioned between multiple stable positions using bi-stable clips, enabling the user to customize the convexity profile after manufacturing to accommodate individual anatomical variations.
2Manufacturing precision
If uniform convexity adjustment is applied across the entire skin barrier, then the device complexity is reduced, but the precision of fitting to localized peristomal variations is insufficient
Solution Approach 1:
Each radially extending member can be adjusted independently to provide localized convexity modification. This allows different regions of the barrier to have different convexity depths and characteristics, precisely matching the specific topographical variations at each angular position around the stoma.
Solution Approach 2:
The convexity characteristics (depth, compressibility, flexibility, slope) are made variable through the adjustment mechanism. Users can modify these parameters at specific locations by repositioning individual radially extending members, enabling precise fitting to localized anatomical variations without changing the overall barrier structure.
3Adaptability or versatility
If multiple convexity depth options are provided, then the adaptability to different stoma protrusions is improved, but the ease of operation increases due to requiring user selection and adjustment
Solution Approach 1:
The barrier system enables users to self-adjust the convexity characteristics to match their specific anatomical needs. The bi-stable clip mechanism allows easy repositioning of radially extending members between stable positions, empowering users to customize the fit without requiring professional assistance or complex tools.
Solution Approach 2:
The barrier transitions from a static, pre-configured convexity structure to a dynamic system that users can modify. The adjustment mechanism allows real-time customization of convexity depth and characteristics after the barrier is applied, adapting to the user's specific peristomal topography.
Data Source
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. The convexity adjusting device is configured to provide a localized and customized adjustment of at least one characteristic of the convexity.