Luer Connector Selective Interconnection via Reduced Diameter
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Solution Overview
Problem
Conventional Luer fitting connectors can lead to inadvertent interconnections between medical systems with different intended uses, potentially causing injuries or system cross-contamination due to secure yet incorrect connections.
Innovation Solution
A medical system inflation syringe with a male connection means featuring a nozzle with outside diameters smaller than ISO 594 standards, allowing selective interconnection only with female Luer connectors having swabable valves, while preventing secure interconnection with those lacking such valves, thereby ensuring safe and controlled fluid communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional Luer fitting connectors are used, then secure interconnection is achieved, but inadvertent interconnection between different medical systems occurs
Solution Approach 1:
The male connector is designed with a specific outside diameter that is smaller than standard ISO 594 Luer connectors, creating a localized dimensional difference at the connection interface. This allows the connector to be universally compatible with all female Luer connectors while standard female connectors are not compatible with each other, preventing inadvertent interconnections between different medical systems
Solution Approach 2:
The invention creates an asymmetric relationship in the connector system where the male connector has a unique smaller diameter that does not match any standard female connector, breaking the symmetry of universal compatibility. This asymmetric design ensures that only the intended male-female pair can connect, while preventing connections between different female connectors or with incompatible systems
2Object-affected harmful factors
If selective interconnection is implemented, then safety is improved, but device complexity increases
Solution Approach 1:
The invention changes the dimensional parameter of the male connector by reducing its outside diameter below standard ISO 594 specifications. This single parameter change creates selective compatibility without adding mechanical complexity, locking mechanisms, or multiple components, maintaining simplicity while achieving safety
Data Source
AI summary
The medical system inflation syringe of the present invention enables a fluid communication selective interconnection of a male connector with a subset of certain female connectors, more particularly female Luer connectors, while preventing interconnection of said male connector with other subsets of female connectors, for the purpose of providing secure interconnection to achieve fluid (including gas or air) communication only with medical systems with which the inflation syringe is intended to be interconnected.