Quick Disconnect Chromatography Column Clamp Design
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Solution Overview
Problem
Existing liquid chromatography systems face difficulties in efficiently connecting and disconnecting chromatography columns due to residual pressure, leading to physical strain and reliance on third parties for technicians.
Innovation Solution
A chromatography column design featuring a piston tube with a porous layer and a 360-degree chromatography clamp that allows for easy connection and disconnection with minimal force, using a threaded collar and o-ring to maintain axial alignment and prevent rotation, facilitating quick release and reduced component handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional connection methods are used in liquid chromatography systems, then the connection can be secure, but the disconnection becomes physically difficult due to residual pressure requiring substantial force and repetitive motion
Solution Approach 1:
The connection system is divided into separate components: a clamp body, a movable jaw, and a release mechanism. This segmentation allows the force application to be separated from the disconnection action, enabling easy release without directly overcoming residual pressure through repetitive motion.
Solution Approach 2:
The clamp incorporates a movable jaw that can be dynamically positioned to engage or disengage from the connection interface. This dynamic element allows the system to transition between locked and released states with minimal force, avoiding the need for substantial repetitive motion during disconnection.
2Ease of operation
If conventional clamps are used, then the connection can be maintained, but the clamp components must encircle the tube which increases complexity and prevents easy opening
Solution Approach 1:
The clamp is segmented into a stationary body and a movable jaw connected by a hinge. This segmentation allows the clamp to open along an axial plane rather than requiring complete disassembly, simplifying the opening action while maintaining structural integrity during connection.
Solution Approach 2:
The hinge connection creates a dynamic joint that allows the movable jaw to pivot open along an axial plane. This dynamic opening mechanism reduces the steps required to open the clamp compared to fully encircling designs, while the clamp still provides secure 360-degree connection when closed.
3Reliability
If a single component encircles the chromatography tube completely, then the connection can be secure, but it requires substantial force to overcome residual pressure during disconnection
Solution Approach 1:
The connection system uses segmented components (clamp body, movable jaw, hinge) that work together to provide secure 360-degree connection while enabling easy release. The segmentation allows the release mechanism to disengage components sequentially rather than requiring simultaneous force application against residual pressure.
Solution Approach 2:
The hinge acts as an intermediary element between the clamp body and movable jaw, providing a pivot point that mechanically advantages the disconnection process. This intermediary allows the system to transition from a locked state to an open state with minimal force, eliminating the need for technicians to directly push against residual pressure.
4Ease of operation
If conventional connection methods are used, then the system can be sealed, but technicians must undergo harmful repetitive motion or rely on third parties
Solution Approach 1:
The release mechanism incorporates a dynamic trigger that initiates a cascade of movements: the trigger moves the movable jaw away from the connection interface, allowing the chromatography tube to be released without forceful repetitive motion. This dynamic sequence enables independent operation by technicians while eliminating harmful repetitive motions.
Solution Approach 2:
The clamp design allows the connection system to self-release through the trigger mechanism without requiring external assistance or forceful manual manipulation. The movable jaw automatically disengages from the connection interface when the trigger is activated, enabling technicians to independently perform disconnections without relying on third parties.
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
Enables easier and faster transfer of chromatography tubes, reducing technician burden and improving system efficiency by minimizing the force required for connection and disconnection.
Implementation Method 1
at least one porous layer obstructing a transverse cross section of its interior
Data Source
AI summary
A chromatography column comprising a chromatography tube, a piston tube with a porous obstruction that inhibits the movement of particle solids therethrough, and a quick connect/disconnect clamp for use in coupling the chromatography tube to the piston tube. This column is for use in a liquid chromatography process where fluid is pumped under pressure through the chromatography tube which contains a packed particulate solid. The clamp allows for the quick removal and replacement of chromatography tubes when the particulate needs replacement.