Aseptic Coupling Device With Integrated Valve For Wet Connections
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Solution Overview
Problem
Aseptic coupling devices typically require a 'dry-to-dry' connection and lack the ability to make a 'wet connection' or control fluid flow once connected, limiting their functionality in sterile fluid transfer applications.
Innovation Solution
The aseptic coupling device can transition between three states: a non-flow state, a flow state, and a disconnected state, allowing for controlled fluid flow and disconnection, achieved through a valve mechanism and collar movement within the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a typical aseptic coupling device uses a dry-to-dry connection with pathway clamping devices, then sterility is maintained during connection, but the device cannot make a wet connection or control fluid flow once connected
Solution Approach 1:
The patent combines the coupling device with an integrated valve mechanism within the same housing. The valve member is positioned inside the fluid pathway of the coupling device, allowing the device to simultaneously provide both connection functionality and fluid flow control without requiring separate components, thereby enabling wet connections while maintaining sterility
Solution Approach 2:
The aseptic coupling device is designed to perform multiple functions: it can create both dry-to-dry and wet connections, control fluid flow through the integrated valve, and maintain sterility throughout operation. This multi-functionality allows a single device to replace what would traditionally require separate coupling and valve components
2Ease of operation
If pathway clamping devices are used to maintain dry connection, then sterility is preserved, but fluid flow control and disconnection capability are lost
Solution Approach 1:
The coupling and valve control functions are merged into a single integrated device. The collar that controls valve operation is part of the coupling assembly, allowing fluid flow control to be achieved through the same operational interface used for connection and disconnection, simplifying the overall operation
3Adaptability or versatility
If a traditional aseptic coupling device is designed for dry connection only, then manufacturing is simpler, but functionality is limited
Solution Approach 1:
The valve member is nested within the housing of the coupling device, with the collar mechanism positioned to interact with the valve member through the housing wall. This nested arrangement allows the valve mechanism to be integrated within the existing coupling device structure without requiring a complete redesign, facilitating manufacturing while adding functionality
Solution Approach 2:
The device is segmented into distinct functional components: the housing containing the fluid pathway, the valve member for flow control, and the collar for actuation. This segmentation allows each component to be manufactured separately and then assembled, maintaining manufacturing simplicity while enabling complex functionality with three distinct operational states
Data Source
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AI summary
An aseptic coupling device includes a first state in which fluid does not flow through the aseptic coupling device. In addition, the aseptic coupling device includes a second state in which fluid does flow through the aseptic coupling device. The aseptic coupling device can be moved from first, second, and third states to control the flow of fluid through the aseptic coupling device.