Modular Fixed-Bed Bioreactor for Scalable High-Density Cell Culture
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Solution Overview
Problem
Existing bioreactors are difficult to transport and adapt to various sizes or configurations, and they struggle to maximize cell density and scalability, particularly in remote locations with limited space.
Innovation Solution
A modular bioreactor design featuring structured fixed beds, such as spiral beds, with modular components that allow for easy assembly and adaptation, enabling high-density cell growth and scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional bioreactor design is used, then cell culturing function is provided, but the device is difficult to transport and adapt to various sizes or configurations
Solution Approach 1:
The bioreactor is divided into modular components including a base unit, intermediate parts, and cover portions that can be assembled and disassembled. The fixed bed is segmented into multiple sections that can be independently configured. This segmentation enables the system to be adapted to various sizes and configurations while reducing overall device complexity through standardized connection interfaces.
2Productivity
If traditional bioreactor designs are used, then cell culturing is achieved, but they struggle to maximize cell density and scalability
Solution Approach 1:
The bioreactor incorporates adjustable parameters including variable flow rates, controllable agitation speeds, and adjustable fixed bed configurations. These dynamic controls enable optimization of cell density for different applications while maintaining scalability through modular expansion of the fixed bed sections and intermediate parts.
Solution Approach 2:
The fixed bed is arranged in a spiral configuration around a central column, utilizing three-dimensional space efficiently. This spatial arrangement maximizes cell density within a compact volume while maintaining scalability through vertical stacking of multiple fixed bed sections in the intermediate parts.
3Productivity
If fixed beds are used to maximize cell density, then high cell densities up to 200 million cells/ml are achieved, but the device becomes more complex
Solution Approach 1:
The fixed bed structure serves multiple functions simultaneously: it provides cell attachment surfaces, acts as a flow distribution medium, and functions as a structural support framework. The spiral configuration integrates the flow path and cell culture volume into a single unified structure, reducing overall device complexity while maintaining high cell density capability.
Data Source
AI summary
An apparatus for culturing cells includes a bioreactor. The bioreactor may be modular and may include in a chamber a fixed bed, such as an unstructured or structured fixed bed (such as a spiral bed) for culturing cells, with a return column arranged centrally within the chamber. The modular bioreactor may include a plurality of structured fixed bed arranged in a stacked configuration. The modular bioreactor may include an outer casing forming a space for conditioning (e.g., insulating, heating, cooling) at least a chamber in which cells are cultured. The bioreactor may also include an impeller with radially curved blades, and may also suspend the impeller so that it may move from side-to-side and align with an external drive. Related methods are also disclosed.