Centralized Bioreactor Media Control With Isolated Fluid Paths
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Solution Overview
Problem
Existing bioreactor systems are inefficient in dynamically adjusting media characteristics based on tissue needs, require costly replication for scaling, and lack closed systems to prevent contamination, leading to high operating costs and limited flexibility.
Innovation Solution
A scalable bioreactor system with integrated fluid management and control, utilizing check valves and centralized media reservoirs to isolate and pump media independently to each bioreactor, ensuring consistent flow rates and thermal control, and incorporating sensors for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple bioreactors are operated independently with separate media reservoirs and controllers, then each bioreactor can be controlled individually, but the system complexity and operating costs increase substantially
Solution Approach 1:
The system divides the control architecture into hierarchical levels: a centralized controller manages overall fluid distribution and reservoir operations, while local controllers at each bioreactor module handle specific tissue culture parameters. This segmentation allows individual bioreactor control while sharing common infrastructure, reducing overall system complexity and costs.
2Reliability
If media is manually replaced in bioreactors, then contamination risk can be controlled through proper technique, but labor costs and operational inefficiency increase
Solution Approach 1:
The system implements automated media management where sensors detect media characteristics (pH, temperature, composition) and trigger automatic media replacement or adjustment. The centralized controller coordinates pump operations to deliver fresh media without manual intervention, maintaining contamination control while dramatically improving operational efficiency.
3Ease of operation
If media characteristics are adjusted based on time schedules, then operational simplicity is maintained, but tissue-specific dynamic needs are not met
Solution Approach 1:
The system incorporates sensors that continuously monitor media characteristics (pH, temperature, nutrient composition) and tissue culture state. This feedback is transmitted to the centralized controller, which dynamically adjusts media delivery parameters, composition, and timing to match specific tissue requirements while maintaining operational simplicity through automated decision-making.
4Reliability
If bioreactors are opened in clean rooms or biosafety cabinets for media replacement, then contamination prevention is achieved, but facility costs and operational complexity increase
Solution Approach 1:
The system introduces a sterile barrier interface in the form of a sealed bioreactor module with integrated ports and valves. Media replacement occurs through this sterile interface using closed-loop fluid pathways, eliminating the need to open bioreactors in clean rooms. The intermediary sterile connection maintains contamination prevention while removing complex facility requirements.
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
Enables dynamic media adjustments based on tissue requirements, reduces contamination risk, and lowers operational costs by sharing media reservoirs, supporting flexible bioreactor designs and maintaining tissue viability.
Implementation Method 1
preventing waste line backflow from the at least one waste line to the plurality of bioreactors using a first of an at least one check valve
Implementation Method 2
preventing bioreactor backflow from the plurality of bioreactors to the at least one media line using a second of the at least one check valve
Implementation Method 3
a pump delivers the media to a bioreactor
Implementation Method 4
flow of media in a thermally-controlled environment
Data Source
AI summary
System and method for providing biocompatible, nutrient filled media to the Human Cells, Tissues, and cellular and tissue-based Products (HCT/P) while removing wastes. The present teachings provide for sensing the characteristics of the media, and modifying the characteristics when necessary. The present teachings can also provide components that can provide fluid pumping integrated with fluid gas exchange, and sensing of fluid characteristics at consistent times during the fluid flow cycle. System and method control multiple bioreactors from a centralized media reservoir, while fluidically isolating the bioreactors from cross-contamination.