Porous Cell Culture Membrane Structure for Uniform Microenvironment Control

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Solution Overview

Problem

Existing cell culture systems using thin, porous membranes face challenges in maintaining structural integrity and limited adaptability for specific cell culture conditions, leading to non-uniform conditions and high reagent consumption.

Innovation Solution

A cell culture membrane structure with deformations and through pores, tailored to specific cell types, and a cell culture apparatus with modular design for controlled culture conditions, including a housing with replaceable inserts and flow channels for media distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If thin, porous membranes are used as cell culture supports, then control over cell culture conditions is improved, but structural integrity and strength are compromised

Engineering Contradiction:
Improvecontrol over cell culture conditionsVSAvoidstructural integrity of membrane
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The patent applies local quality by creating cavities at specific locations on the membrane surface where cells will be cultured. These localized structural modifications provide mechanical support and defined culture environments without compromising the overall thinness and porosity of the membrane. The cavities are strategically positioned to offer strength where needed while maintaining the membrane's general properties for effective cell culture control.

Inventive Principle:
Principle #3Local quality

2Quantity of substance

If thin, porous membranes are used to enable parallel culturing of many cells, then reagent consumption is reduced, but the membranes cannot be adapted for specific cell culture requirements

Engineering Contradiction:
Improvereagent consumptionVSAvoidadaptability for specific cell culture
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent implements local quality by providing cavities with specific dimensions, shapes, and surface treatments at particular locations on the membrane. These localized features can be tailored to accommodate different cell types and culture requirements, enabling adaptation for specific cell culture applications while maintaining the overall thin membrane structure that reduces reagent consumption.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent applies segmentation by dividing the membrane surface into multiple cavities, each capable of supporting cell culture independently. This segmentation allows different regions of the membrane to be optimized for different cell types or culture conditions, providing adaptability for specific cell culture requirements while maintaining the resource efficiency of a thin membrane structure.

Inventive Principle:
Principle #1Segmentation

3Quantity of substance

If large volume vessels are used for cell culture, then uniform cell culture conditions are difficult to achieve, but reagent consumption increases significantly

Engineering Contradiction:
Improvereagent consumptionVSAvoiduniformity of cell culture conditions
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The patent applies segmentation by dividing the cell culture environment into multiple small cavities on a thin membrane. Each cavity creates a micro-environment that ensures uniform distribution of nutrients and cells, achieving consistent culture conditions across all cavities. This segmented approach allows parallel culturing of many cells with uniform conditions while using minimal reagents compared to large volume vessels.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4289934B1Cell culture membrane structure, methods for producing the same, cell culture plate, cell culture apparatus comprising the cell culture membrane structure, and methods for cell cultivation by using the cell culture apparatus
Publication Date: 2025.12.31 FINNADVANCE OY
  • EP4289934B1 patent drawingFigure 1A
  • EP4289934B1 patent drawingFigure 1B
  • EP4289934B1 patent drawingFigure 2

AI summary

The present disclosure relates generally to the field of biotechnology and, in particular, to a cell culture membrane structure, cell culture apparatus comprising the cell culture membrane structure, methods for cell cultivation by using the cell culture apparatus, a cell culture incubator comprising the cell culture apparatus, and methods for producing the cell culture membrane structure.