Symmetric Three-Legged Chromatography Support

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Solution Overview

Problem

Large-scale preparative chromatographic processes face complexities due to factors like column packing, hydrodynamic pressure drop, and flow distribution, which affect the economics and efficiency of the process, and existing solutions do not adequately address the compaction of gel filling materials in gel filtration columns, leading to reduced capacity and pressure issues.

Innovation Solution

A chromatography column support system comprising movable frits and supports with a symmetric, three-legged structure and connectors that can be freely positioned within the column, made of materials like stainless steel, silicone, or polytetrafluoroethylene, to minimize disturbance of the chromatography material and ensure homogeneous packing and flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If additional support elements are added to stabilize column packing, then packing stability is improved, but device complexity increases

Engineering Contradiction:
Improvepacking stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The support structure is divided into multiple legs (at least three) that are distributed around the column circumference, with connectors positioned at different heights. This segmentation provides stable support throughout the column packing while maintaining a relatively simple overall structure that can be easily installed.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If separation walls are arranged parallel to column wall to prevent gel compaction, then column capacity is maintained, but device complexity increases

Engineering Contradiction:
Improvecolumn capacityVSAvoiddevice complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

Instead of using vertical separation walls parallel to the column wall, the invention uses horizontal support elements (legs and connectors) positioned at different heights to create support planes. This dimensional change provides the necessary support to prevent gel compaction and maintain column capacity without the complexity of vertical partition walls.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If movable frit is used to support chromatography material, then flow distribution is improved, but positioning precision at desired location is reduced

Engineering Contradiction:
Improveflow distributionVSAvoidpositioning precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The movable frit is positioned on top of the support structure formed by legs and connectors, which act as intermediaries to hold the frit at the desired location. This intermediary support system enables the frit to be precisely positioned while maintaining its movability for good flow distribution throughout the column.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2671074B1Chromatography column support
Publication Date: 2024.10.30 F HOFFMANN LA ROCHE & CO AG
  • EP2671074B1 patent drawingFigure 1
  • EP2671074B1 patent drawingFigure 2
  • EP2671074B1 patent drawingFigure 3

AI summary

Herein is reported the use of a chromatography column support comprising at least one plane of symmetry, one axis of symmetry, at least three legs, at least three straight connectors, whereby the connectors define a plane that is perpendicular to the axis of symmetry of the support, whereby the connectors are connected to each other at the axis of symmetry, whereby each leg is connected to a connector, whereby each leg is perpendicular to the plane defined by the connectors, whereby all legs are on the same side of the plane defined by the connectors for stabilizing the packing of a chromatography column.