Axial Flow Chromatography Column Port Elevation
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Solution Overview
Problem
Existing axial chromatography columns require a vent valve for purging, which increases the risk of air introduction and liquid siphoning, and limits user accessibility due to the need for a complex column holder and additional valve components.
Innovation Solution
A chromatography column design with ports for liquid introduction and collection at the same elevation, eliminating the need for a vent valve and reducing the complexity of dynamic seals and moving parts, thus minimizing leakage and contamination risks while enhancing user accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vent valve is installed at the base of the column for purging, then the column can be purged of air, but the risk of air introduction and liquid siphoning increases
Solution Approach 1:
The patent removes the vent valve component entirely from the column design. Instead of having a valve at the base for purging, the system relies on the elevated port configuration and gravity to prevent air introduction and liquid siphoning, thereby eliminating the harmful effects associated with vent valve operation while maintaining purging capability through alternative means
2Reliability
If a vent valve and complex column holder are used, then the column can be installed and purged, but user accessibility is limited due to the need for access to both top and bottom of the column
Solution Approach 1:
The patent combines the inlet and outlet ports at the same elevated location on the column, eliminating the need for separate access points at the top and bottom. This merging of functions at a single accessible location simplifies installation and operation while maintaining all necessary purging and flow control capabilities
Solution Approach 2:
Instead of placing the outlet port at the base of the column as in traditional designs, the patent inverts the configuration by positioning both inlet and outlet ports at the top/elevated location. This inversion eliminates the need for base access and simplifies user interaction with the system
3Reliability
If additional valve components are added to the column, then purging functionality is improved, but the complexity of dynamic seals and moving parts increases
Solution Approach 1:
The patent extracts and removes the vent valve component from the system entirely. By eliminating this moving part with its associated dynamic seals and mechanical complexity, the design achieves purging functionality through a simpler, valveless configuration that reduces maintenance requirements and potential failure points
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 reduces the risk of siphoning and air introduction, simplifies column installation, and improves user accessibility, making it easier and cost-effective to produce and use, especially for disposable columns, while maintaining predictable performance across varying sizes.
Implementation Method 1
separation of substances or analytes taking place between the mobile phase and solid phase of the porous medium
Implementation Method 2
separation of substances or analytes taking place between the mobile phase and solid phase of the porous medium
Data Source
AI summary
The present invention relates to axial flow chromatography columns, methods for separating one or more analytes in a liquid by the use of such columns, and systems employing such columns. The column comprises a first port and a second port, the first port and said second port being at essentially the same level or elevation above the level of the bed space on the chromatography column.