Hinged-Flap Closure Cap for Aseptic Medical Container Assembly
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Solution Overview
Problem
The assembly of sealing elements in closure caps for medical containers is complex, particularly in aseptic environments, and requires sophisticated machinery, compromising safety and ease of use.
Innovation Solution
A closure cap design featuring a flap hinged inside the base body, which fixes the sealing element by folding against the base body, ensuring a form-fitting connection and simplifying assembly, while providing secure fixation and protection against mechanical manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a collar is flanged to fix the sealing element, then secure fixation and tightness are ensured, but the assembly system becomes complex and difficult to set up
Solution Approach 1:
The closure cap is divided into functionally independent components: a base body for structural support and a separate flap for sealing element fixation. This segmentation allows each component to perform its specific function with a simple, dedicated structure, eliminating the need for complex flanging systems while maintaining secure fixation through the folded flap design
Solution Approach 2:
Instead of using a rigid collar that flanges outward to secure the sealing element, the invention inverts the approach by using a flexible flap that folds inward and over the sealing element. This inversion transforms a complex mechanical flanging operation into a simple folding and tucking action, reducing assembly system complexity while maintaining fixation reliability
2Reliability
If sophisticated machinery is used for assembly, then secure fixation is achieved, but the need for complex equipment increases and manual assembly becomes difficult
Solution Approach 1:
The flap design enables self-service assembly where the sealing element itself facilitates its own fixation. As the flap is folded over the sealing element and tucked into the base body, the sealing element passively becomes secured without requiring external sophisticated machinery. The design allows both manual operation and simple automated handling, eliminating the need for complex equipment while ensuring reliable fixation
3Ease of operation
If a flap design is used to fix the sealing element, then assembly is simplified and can be done manually, but secure fixation must be maintained
Solution Approach 1:
The flap transitions from a dynamic, movable state during assembly to a fixed, static state during operation. During assembly, the flap can be freely folded and positioned over the sealing element, enabling easy manual or automated assembly. Once folded into place and tucked into the base body, the flap becomes a rigid, secure fixture that reliably holds the sealing element, thus maintaining both ease of assembly and secure fixation
Data Source
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 scaling 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.