Tamper Evident Seal With Visible Adhesive Dot Lattice
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing IV bag seals are not cost-effective and require additional manufacturing steps to differentiate adhesive and non-adhesive areas, making it difficult to visually distinguish the target area from the adhesive-covered areas, which can lead to contamination and tampering issues.
Innovation Solution
A seal is manufactured using a roll of laminate material and a roll of peel strip with screen-printed clear and transparent adhesive, forming a pattern of adhesive dots that merge to create a visible lattice around each dot, allowing easy differentiation between adhesive and non-adhesive areas, and a perforated adhesive dispenser is used to apply individual adhesive dots that compress laterally to enhance visual distinction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional adhesive application methods are used to create uniform adhesive coverage, then reliable sealing is achieved, but it becomes difficult to visually distinguish adhesive areas from non-adhesive target areas
Solution Approach 1:
The adhesive layer is segmented into discrete dots rather than continuous coverage. This segmentation creates visible boundaries between adhesive and non-adhesive areas while maintaining reliable sealing through sufficient adhesive coverage. The adhesive dots are distributed across the seal surface, creating a pattern that is easily distinguishable from the target area.
Solution Approach 2:
The adhesive application transitions from uniform coverage to non-uniform local coverage. Adhesive is applied only in specific locations (dots) rather than uniformly across the entire seal surface. This local quality approach creates visual distinction while maintaining sealing reliability where adhesive is present.
2Difficulty of detecting and measuring
If additional manufacturing steps are added to differentiate adhesive and non-adhesive areas, then visual distinction is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The adhesive application process is merged with the existing seal manufacturing process. The adhesive is applied in a pattern during the normal manufacturing flow without requiring separate differentiation steps. This combining approach achieves visual distinction while avoiding additional manufacturing complexity.
Solution Approach 2:
The adhesive application parameters are changed from uniform continuous coverage to patterned dot coverage. This parameter change in the adhesive application process creates visual distinction inherently, eliminating the need for additional manufacturing steps to differentiate areas.
3Reliability
If adhesive is applied in a continuous uniform layer, then complete coverage is achieved, but bacterial migration paths can form between adhesive and non-adhesive areas
Solution Approach 1:
The adhesive layer is segmented into discrete dots that create physical barriers. This segmentation disrupts continuous bacterial migration paths by creating isolated adhesive zones with non-adhesive spaces between them, preventing bacteria from traveling continuously from adhesive to non-adhesive areas.
Solution Approach 2:
The non-adhesive spaces between adhesive dots, which might seem to create gaps, actually serve as beneficial barriers against bacterial migration. These spaces break up potential contamination paths while the adhesive dots maintain sealing function, converting what could be seen as a weakness into a protective feature.
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 solution provides a cost-effective seal that prevents bacterial migration and clearly distinguishes adhesive from non-adhesive areas, ensuring sterility and preventing tampering by creating a visible lattice that is easily recognizable, thus enhancing the security and efficiency of sealing IV bags.
Implementation Method 1
Each individual adhesive dot is compressed so that at least a portion of a peripheral edge thereof moves laterally and merges with one or more neighbor individual adhesive dots
Data Source
AI summary
A seal formed of laminated films adhered to a peel strip. The seal includes a target area free of adhesive, and adhesive surrounding the target area. The seal is formed so that the target area is visually distinguished from the surrounding adhesive to facilitate accurate placement of the seal on a medical container by a user. The use of a large adhesive dot pattern enhances the peripheral edge of each adhesive dot to provide a prominent and visual lattice. The prominent and visual lattice distinguishes the adhesive areas of the seal from the non-adhesive areas. The lattice boundary surrounding each adhesive dot is still prominent and visible when a clear and transparent adhesive is applied to selected surfaces of the seal.