Catheter Connector Packing with Delayed Projections
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Solution Overview
Problem
Existing catheter connectors fail to evenly distribute pressure along the packing when compressed, leading to potential squashing of the catheter during fixation.
Innovation Solution
A catheter connector design featuring a cylindrical packing with projections on both end faces, where the body-pressing surfaces and projections are pressed with a delay, distributing contact pressure more evenly to prevent catheter squashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the packing is compressed with the A and B members, then the catheter is fixed securely, but the pressure is concentrated at specific points causing the catheter to be squashed
Solution Approach 1:
The packing is designed with non-uniform structure featuring a cylindrical body and multiple projections extending from its surface. This creates different local compression characteristics: the body provides overall compression while the projections distribute pressure to specific regions, ensuring even pressure distribution along the catheter length without concentrating force at single points that would cause squashing.
Solution Approach 2:
The packing structure is segmented into a cylindrical body and multiple projections. This segmentation allows the compression force to be distributed across multiple contact points (the projections) rather than concentrated at one location, thereby securing the catheter firmly while preventing localized squashing through divided pressure application.
2Device complexity
If the packing structure is simplified without projections, then the device complexity is reduced, but the pressure distribution becomes uneven causing catheter squashing
Solution Approach 1:
Rather than creating a completely complex structure, the invention adds simple projections to the cylindrical body. These projections create local quality variations that distribute pressure evenly, solving the catheter squashing problem with minimal additional structural complexity.
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 connector ensures even contact pressure along the packing, effectively preventing catheter squashing while ensuring secure fixation.
Implementation Method 1
the packing is compressed with the A and B members, whereby the catheter is fixed
Implementation Method 2
the through hole is contracted, whereby the pressure with which the catheter is fastened is evened out
Data Source
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AI summary
To even out the contact pressure acting on a catheter when the catheter is fastened and fixed with a packing of a connector. When body-pressing surfaces of A and B members at which a body of the packing is to be pressed come into contact with the body of the packing and the body starts to be pressed, projections of the packing are pressed with a delay from the pressing of the body because of gaps provided between the projections of the packing and projection-pressing surfaces at which the projections of the packing are to be pressed. Thus, the contact pressure acing on the