Modular Bioreactor System for Parallel Cell Culture
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Solution Overview
Problem
Bioreactor systems face challenges in optimizing conditions for cell culture production due to the complexity of controlling multiple parameters, high operational costs, and the lack of efficient small-scale models that accurately replicate large-scale conditions, leading to inefficiencies and increased costs in product yield and cell viability.
Innovation Solution
A bioreactor system with a modular design featuring a receiving station, a drive mechanism, and a clamp plate that allows for simultaneous connection and operation of multiple bioreactor vessels, reducing setup time and labor, and incorporating a single sensor for monitoring multiple vessels to streamline operations and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual bioreactors are used for each experiment run, then control of culture parameters can be maintained, but the cost and time required for each run becomes prohibitive
Solution Approach 1:
Multiple bioreactor vessels are merged into a single integrated system where multiple vessels share common support structures, gas distribution systems, and monitoring infrastructure. This allows multiple experiments to run simultaneously while maintaining individual parameter control through modular design elements.
Solution Approach 2:
The system employs universal components that can serve multiple vessels simultaneously, such as a single gas distribution manifold that supplies all vessels, shared monitoring systems that can interrogate multiple vessels, and common control architecture that manages all experiments. This multi-functionality reduces the per-vessel cost and increases throughput.
2Productivity
If multiple bioreactor vessels are operated simultaneously in a parallel system, then throughput and productivity increase, but the complexity of connecting and managing multiple vessels increases
Solution Approach 1:
The system is divided into modular segments where each vessel has standardized connection points and interfaces. The support structure is segmented to accommodate multiple vessels independently while sharing common infrastructure. This segmentation allows for easy assembly and disassembly without complex custom connections for each vessel.
Solution Approach 2:
Universal standardized interfaces and connection protocols are implemented across all vessels, allowing them to be connected to the support structure and gas distribution system in a consistent, simplified manner. This universality reduces the complexity of managing multiple vessels compared to custom individual connections.
3Ease of manufacture
If traditional small-scale bioreactor systems are used, then operational costs are reduced, but the ability to faithfully reproduce large-scale stirred and gassed conditions is lost
Solution Approach 1:
The system uses small-scale vessels that are designed to copy or replicate the hydrodynamic and gas distribution characteristics of large-scale bioreactors. By maintaining geometric similarity and appropriate scaling of key parameters such as impeller tip speed and gas sparging patterns, the small vessels faithfully reproduce large-scale conditions while remaining cost-effective.
Solution Approach 2:
The system adjusts operating parameters such as stirring speed, gas flow rates, and vessel geometry to maintain dynamic similarity between small-scale model vessels and large-scale production bioreactors. This allows reproduction of relevant flow patterns and mass transfer conditions despite the size difference.
Data Source
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AI summary
An aspect relates to a bioreactor system, including a cell culture module comprising a base including a receiving station for removably receiving a plurality of reactor vessels at respective locations, multiple fluid conduits and a clamp plate, removably connectable to the base, and including fluid connectors for forming a fluid connection between the fluid conduits and associated multiple outlet ports in the clamp plate, each outlet port corresponding to a respective vessel location in the receiving station, and wherein the clamp plate comprises multiple rotary motion outputs, each output corresponding to a respective vessel location in the receiving station. Another aspect relates to a method of processing bioreactor vessels, comprising the steps of placing said bioreactor system in a controlled environment, removing a vessel from aseptic packaging within that controlled environment and inserting the vessel into the receiving station.