Disposable Cell Processing Kit with Magnetic Isolation
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Solution Overview
Problem
Existing bioprocessing systems for manufacturing CAR T cells are complex, costly, inflexible, and prone to workflow bottlenecks due to high human touchpoints, which increases the risk of contamination and reduces manufacturing efficiency.
Innovation Solution
A modular bioprocessing system with automated modules for enrichment, activation, genetic modification, and expansion, utilizing disposable kits and magnetic cell isolation techniques to streamline processes, reduce human intervention, and enhance flexibility and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing bioprocessing systems are used for manufacturing CAR T cells, then the manufacturing process can be completed, but the system complexity increases and human touchpoints increase, leading to higher contamination risk and reduced efficiency
Solution Approach 1:
The system is divided into separate functional modules: a magnetic cell isolation module for cell separation, a bioreactor module for cell expansion, and a formulation module for final product preparation. Each module can operate independently and be configured according to specific process requirements, reducing overall system complexity while maintaining high reliability through modular design
Solution Approach 2:
The system incorporates automated magnetic cell isolation technology that performs cell separation without requiring manual intervention. The magnetic field generator automatically separates target cells from non-target cells based on magnetic properties, eliminating human touchpoints and reducing contamination risk while maintaining process reliability
2Reliability
If automated systems are used to eliminate human touchpoints, then contamination risk decreases, but the system becomes more costly and less flexible
Solution Approach 1:
The system features adjustable magnetic field strength and variable flow rates that can be dynamically modified during operation. The magnetic field generator can be tuned to different intensities based on cell type and concentration requirements, allowing the same automated system to adapt to various manufacturing scenarios without requiring complete system redesign
Solution Approach 2:
The magnetic cell isolation module is designed to handle multiple cell types and processing scenarios through a universal magnetic field generation mechanism. The same basic system architecture can process different cell populations by adjusting parameters rather than requiring separate specialized equipment for each application
3Productivity
If manual processing is used, then system cost is reduced, but the manufacturing efficiency decreases and workflow bottlenecks occur
Solution Approach 1:
The system enables continuous processing where cells flow continuously through the magnetic separation chamber and into the bioreactor without interruption. The automated magnetic cell isolation operates continuously to separate and transfer cells, eliminating manual processing gaps and workflow bottlenecks while maintaining high manufacturing efficiency through uninterrupted operation
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
The modular system improves manufacturing efficiency by parallel processing of multiple samples, reduces contamination risks, and enhances scalability and flexibility, allowing for efficient production of cellular immunotherapies while minimizing costs and human error.
Implementation Method 1
a magnetic field generator configured to generate a magnetic field to retain bead-bound target cells in the magnetic cell isolation holder when the holder is received in the slot
Implementation Method 2
a centrifugal processing chamber configured to separate a population of cells into target and non-target cells
Data Source
AI summary
A kit for magnetic cell isolation includes first stopcock manifold having at least four stopcocks, a separation chamber configured for use with a centrifugal processing chamber of the cell processing device, the separation chamber in fluid communication with the first stopcock manifold, a mixing bag configured for use with a heating/cooling mixing chamber of a cell processing device, the mixing bag in fluid communication with the first stopcock manifold, a second stopcock manifold having at least four stopcocks, the second stopcock manifold in fluid communication with the first stopcock manifold, a magnetic cell isolation holder in fluid communication with the second stopcock manifold, the magnetic cell isolation holder configured for use with a magnetic field generator of a magnetic cell isolation device, and a plurality of cell processing bags in fluid communication with the first and/or second stopcock manifolds.