Pivotable Drinking Stub Closure Cap for Medical Fluid Containers
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Solution Overview
Problem
Existing closure systems for medical fluid containers, particularly those used for enteral nutrition, are not easily reclosable and lack adequate ventilation, making them difficult to handle, especially for weakened individuals, and prone to leakage due to incorrect handling.
Innovation Solution
A closure cap with a pivotable drinking stub and ventilation stub that can be designed to reclose after use, featuring a piercing spike for membrane penetration and a ventilation opening to prevent liquid escape, allowing for easy handling and secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a closure cap with a pivotable drinking stub is used to pierce a sealing foil/film, then the container can be opened for drinking, but the container cannot be reclosed and contents may flow out due to incorrect handling
Solution Approach 1:
The drinking stub is designed to be pivotable between a first position (bears against the closure body) and a second position (protrudes from the closure body). This dynamic positioning allows the stub to be easily moved for drinking while automatically returning to seal the opening, enabling both easy operation and reliable reclosure
Solution Approach 2:
The closure cap is divided into functional segments: a closure body with a first opening, a drinking stub with a second opening that pivots, and a ventilation stub with a third opening. This segmentation allows each component to perform its specific function independently while working together to solve the contradiction between easy opening and reliable reclosure
2Device complexity
If a closure cap without ventilation is used, then the structure is simpler, but handling becomes difficult particularly for weakened individuals
Solution Approach 1:
The closure cap integrates multiple functions into a single device: the drinking stub provides both drinking access and piercing function, while the ventilation stub provides air intake. This multi-functionality allows the device to handle both liquid flow and air flow requirements, making it easier to handle for weakened individuals without significantly increasing structural complexity
3Ease of operation
If a closure cap with a pivotable drinking stub is used, then the membrane can be pierced for drinking, but the system lacks ventilation capability causing difficulty in handling
Solution Approach 1:
The closure cap is divided into functional segments: a closure body with a first opening, a drinking stub with a second opening that pivots, and a ventilation stub with a third opening. This segmentation allows each component to perform its specific function independently while working together to solve the contradiction between easy opening and reliable reclosure
Data Source
AI summary
A closure cap for a container filled with a medical fluid and having a mouthpiece sealed by a pierceable membrane includes a cap-shaped closure body and a drinking stub with an opening for drinking purposes. The drinking stub is pivotable between a first position, in which the drinking stub bears against the closure body, and a second position, in which the drinking stub protrudes from the closure body, such that, when the drinking stub is pivoted, the membrane of the container is pierced and a connection is produced between the opening in the drinking stub and the container interior.