Medical Device Package Labeling for Reliable First-Use Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medical device packages, particularly those for intermittent catheters, face challenges in providing reliable confirmation of whether the package has been previously opened, as existing first use indicator labels can reattach seamlessly upon reclosing, obscuring the indication of prior opening.
Innovation Solution
A medical device package design featuring a cap and case with adjacent indentations and a first use indicator label that adheres primarily to the cap, ensuring the label remains affixed to the cap after opening, providing a clear visual indication of prior use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a first use indicator label is fully supported by underlying structure, then the label provides initial indication of opening, but the label can tear so cleanly that upon reclosing the cap the adjoining pieces fit back together making the tear line difficult to see
Solution Approach 1:
The patent applies local quality by creating an indentation or chamfer at the separation line between cap and case, which provides a localized unsupported region for the label. This localized structural modification ensures that the label tears in a controlled manner at the indentation line, creating an irregular tear pattern that remains visible even after reclosing, while the rest of the label maintains its adhesive properties for proper attachment.
2Shape
If the package is designed with matching outside geometry of cap and case, then the package appearance is improved, but it becomes difficult to tell whether the package has been previously opened
Solution Approach 1:
The patent introduces asymmetry by creating an indentation or chamfer at the separation line between the cap and case. This asymmetric feature breaks the otherwise matching geometry, providing a distinct visual and tactile indicator that reveals when the package has been opened. The indentation creates an irregularity in the otherwise uniform appearance, making it easy to detect prior opening while maintaining overall aesthetic appeal.
3Loss of information
If the label is placed over the separation line of cap and case, then the label provides indication upon tearing, but upon reclosing the cap the label pieces may fit back together obscuring the indication
Solution Approach 1:
The patent applies preliminary action by pre-forming an indentation or chamfer at the separation line before the label is applied. This pre-prepared structural feature ensures that when the cap is opened, the label will tear along this predetermined line, creating an irregular tear pattern. The indentation is prepared in advance to guarantee that the tear line remains visible and does not heal together when the cap is reclosed, maintaining the opening indication reliably.
Data Source
AI summary
A package (10) for a medical product is provided. The medical package includes a case (12), a cap (14), a hinge (42) that connects the case to the cap and a first use indication label (16) that confirms whether a closed package has been previously opened. The first use indication label spans both an indentation (72) in the cap and an indentation (74) in the case.