Split Release Liner for Ostomy Barrier Alignment and Sealing
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Solution Overview
Problem
Existing ostomy barriers face challenges in achieving a proper fit around varying stoma and peristomal surfaces, leading to potential gaps and premature leakage due to misalignment and improper skin preparation during application.
Innovation Solution
A two-piece split release liner system for ostomy barriers, allowing users to align and prepare the peristomal skin before exposing the adhesive, with each liner covering half of the adhesive and featuring finger holes for easy removal, ensuring complete contact and minimizing gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single-piece release liner is used to protect the adhesive, then the adhesive is fully protected, but the user cannot align and prepare the peristomal skin before exposing the adhesive
Solution Approach 1:
The single-piece release liner is divided into two separate release liners (first and second release liners) that can be removed independently. This segmentation allows the user to remove one liner at a time, enabling alignment and skin preparation before the adhesive is fully exposed, while still maintaining protection until ready for application
2Productivity
If the barrier is applied without partial alignment, then the application process is faster, but misalignment occurs leading to gaps and premature leakage
Solution Approach 1:
The two-piece release liner system enables preliminary alignment action by allowing the user to position the barrier around the stoma while one liner remains in place, then remove the second liner to expose the adhesive for final attachment. This preliminary alignment ensures proper positioning before adhesive exposure, preventing gaps and leakage while maintaining efficient application
3Ease of operation
If the adhesive is fully exposed during alignment, then alignment is easier, but the adhesive may lose effectiveness or contaminate before proper attachment
Solution Approach 1:
By dividing the release liner into two separate liners, the system allows alignment to be performed with only partial adhesive exposure (one liner removed), then completes adhesive exposure (second liner removed) only when ready for final attachment. This maintains adhesive effectiveness while enabling easy alignment
Data Source
AI summary
An ostomy barrier assembly for attaching an ostomy appliance to a peristomal skin surrounding a stoma includes a skin barrier, an inlet opening, and a two-piece split release liner. The skin barrier may include an adhesive. The inlet opening may be defined in the skin barrier for receiving the stoma. The two-piece split release liner may be connected to the skin barrier, may include at least one finger hole, and may be configured to expose the adhesive to the peristomal skin while the skin barrier is aligned with and surrounds the stoma.