Fluid Connector Anti-Rotation and Anti-Displacement Sleeve Latching
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Solution Overview
Problem
Existing non-detachable connectors for fluid transmission components, such as those used in infusion therapy, often require complex latching means that are specific to the connector design, making them unsuitable for universal use and increasing manufacturing complexity and cost.
Innovation Solution
A connector design where the union sleeve latches with the axially end-side front face of the adapter piece, eliminating the need for specific latching means, allowing the union sleeve to be used universally and preventing detachment without compromising structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specific latching means are provided on the union sleeve to prevent detachment, then connection security is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the latching function from complex mechanical latching means and implements it through the geometric shape of the adapter piece front face. The simple planar surface with specific geometry provides the latching action when the union sleeve is slid over the adapter piece, eliminating the need for additional latching components.
Solution Approach 2:
The adapter piece front face geometry inherently provides the latching function without requiring external latching mechanisms. The shape itself serves the dual purpose of connection interface and latching surface, allowing the union sleeve to latch automatically when positioned correctly.
2Reliability
If specific latching means are designed for each connector type, then connection reliability is improved, but adaptability and versatility decrease
Solution Approach 1:
The patent creates a universal union sleeve design that can latch with multiple different adapter piece geometries through a standardized latching mechanism. The union sleeve incorporates a latching surface that is compatible with various adapter piece front face configurations, allowing a single union sleeve design to work across different connector types.
3Reliability
If complex latching means are used to prevent detachment, then connection security is improved, but ease of manufacture decreases
Solution Approach 1:
The patent removes complex latching mechanisms from the design and replaces them with simple geometric features that can be easily manufactured. The adapter piece front face is a simple planar surface with specific geometry that can be produced through standard manufacturing processes, eliminating the need for complex assembly steps.
Data Source
AI summary
A connector for establishing a fluidic connection between a first fluid transmission component and a second fluid transmission component includes a connecting piece having an internal thread and to which a corresponding counter-piece is/can be screwed. A union sleeve can be slid over the connector, in which state the union sleeve engages with the connecting piece in a non-detachable manner. A latching mechanism of the union sleeve, when slid over, engages with an end face of the connection piece that faces the counter-piece.