Needle-Free Syringe Bottle Cap with Elastic Check Valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing solutions for bottles containing pharmacological and nutritional active substances fail to ensure a perfect seal both before and after the introduction and extraction of a needle-free syringe luer, leading to potential contamination and backflow issues.
Innovation Solution
A bottle design featuring a closing cap made of elastically deformable material with a check valve mechanism, comprising a thin slot and membrane that allows needle-free syringe access while ensuring hermetic sealing before and after use, utilizing a metal or plastic collar and a protective cover for secure closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a needle-free syringe luer is introduced to access the bottle contents, then the operation becomes safer and more comfortable, but the hermetic sealing is compromised during and after extraction
Solution Approach 1:
The closing cap is pre-configured with a check valve mechanism consisting of a thin slot and membrane that automatically activates upon luer insertion. The membrane is positioned and tensioned beforehand to snap open when the luer pierces it, ensuring immediate controlled access while maintaining the ability to seal automatically after use.
Solution Approach 2:
The check valve mechanism performs automatic resealing without user intervention. When the luer is extracted, the elastic membrane automatically returns to its original position, closing the slot and restoring hermetic sealing. This self-service mechanism eliminates the need for manual capping or additional sealing steps.
2Ease of operation
If a traditional needle is used to pierce the closure, then access to contents is achieved, but backflow and leakage issues occur
Solution Approach 1:
The closing cap is divided into functional segments: a pierceable membrane for access, a check valve slot for controlled flow, and an elastic body for sealing. This segmentation allows the luer to pass through the membrane into the slot for content access while the check valve structure prevents backflow by allowing flow in only one direction.
Solution Approach 2:
The closing cap utilizes a thin elastic membrane that can be pierced by the luer. This flexible film allows controlled access when pierced while maintaining overall structural integrity and hermetic sealing when intact. The elasticity of the membrane enables it to deform during insertion and automatically return to seal the opening.
3Ease of operation
If the closing cap is made pierceable for repeated access, then ease of use improves, but maintaining perfect seal before and after use becomes difficult
Solution Approach 1:
The closing cap transitions from a static sealed structure to a dynamic system that adapts during use. The elastic membrane and check valve mechanism allow the cap to change state: fully sealed at rest, open during luer insertion, and automatically resealed after extraction. This dynamic behavior enables repeated access while maintaining hermetic sealing between uses.
Solution Approach 2:
The material properties of the closing cap are optimized to enable both pierceability and automatic sealing. The elastic modulus and thickness of the membrane are specifically selected to allow easy piercing by the luer while maintaining sufficient elasticity to return to the sealed position after luer extraction, thus changing the physical state from open to closed automatically.
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 design ensures safe resealing after each use, eliminates backflow, maintains hermetic sealing, and is cost-effective without the need for needles, providing a reliable and safe method for accessing and resealing the contents.
Implementation Method 1
a closing cap (5) made of an elastically deformable material
Implementation Method 2
a check valve against the leak of product from the interior of the bottle
Data Source
AI summary
A bottle for containing pharmacological and/or nutritional active substances is described. The bottle comprises a closing cap pierceable by the pressure exerted with the luer of a needle-free syringe. The closing cap is made as a single piece including a check valve and closing lips which can be opened by introducing a syringe luer and can be elastically closed back upon the extraction of the luer introduced, and a membrane which is pierceable and elastically resealable to hermetically close the inlet end of the check valve.