Medical Container Closure Cap With Hinged Flap Seal Retention
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Solution Overview
Problem
Existing closure caps for medical containers require complex and system-specific crimping systems to secure sealing elements, which can be cumbersome, especially in aseptic environments, and lack secure fixation during assembly and use.
Innovation Solution
A closure cap design featuring a flap hinged to the base body, which secures the sealing element by folding against the base, ensuring a positive fit and preventing dislodgment, with a flap that is protected inside the cap and allows for easy assembly using automated or manual methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crimping system is used to secure the sealing element, then the sealing element is fixed securely, but the assembly system becomes complex and system-specific
Solution Approach 1:
The patent extracts the sealing element fixation function from the complex crimping system and relocates it to a simple retaining plate with projections that engage under the sealing element. This separates the fixation mechanism from the cap structure, allowing independent optimization of each component and eliminating the need for complex crimping equipment.
Solution Approach 2:
The retaining plate acts as an intermediary component between the cap and the sealing element. It provides a simple mechanical interface with projections that engage under the sealing element, mediating the fixation function without requiring complex crimping systems. This intermediary structure simplifies the overall assembly process while maintaining secure fixation.
2Reliability
If a crimping system is used to secure the sealing element, then the sealing element is fixed securely, but the assembly process becomes cumbersome especially in aseptic environments
Solution Approach 1:
The retaining plate with its projections is designed to automatically engage with the sealing element during assembly. The projections fit under the sealing element in a self-aligning manner, allowing the sealing element to be secured without requiring complex manual crimping operations or specialized aseptic crimping equipment, thus simplifying the assembly process in aseptic environments.
3Ease of manufacture
If a retaining plate with projections is used to clamp the sealing element, then the assembly is simplified, but the fixation security may be compromised
Solution Approach 1:
The retaining plate is designed with localized projections at specific positions that engage under the sealing element. These projections are strategically positioned to provide optimal engagement points, ensuring secure fixation at critical locations while maintaining overall assembly simplicity. The local quality of the projection geometry is optimized for reliable sealing element retention.
Data Source
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AI summary
The invention relates to a closure cap for a container filled with a medical liquid. The closure cap has at least one connection with a sealing element which can be pierced by a spike or a needle to remove the medical fluid. A flap is arranged on an inner side of the closure cap and is connected to the main body by means of a hinge. The sealing element is fixed to the closure cap by the flap folded against the main body.