Bioreactor Heating Assembly with Segmented Perimeter
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Solution Overview
Problem
Maintaining consistent temperature conditions within multi-scale bioreactors is challenging, particularly in preventing water condensation on the side walls, which can alter the osmolality and affect cell culture processes, requiring an enhanced heating assembly and method for effective temperature control.
Innovation Solution
A heating assembly for bioreactors featuring a holder with segments forming a unitary structure, including a heating component that establishes a temperature gradient along the culture vessel from top to bottom, using a holder with a gradually varied perimeter and a heating component with varying electrical resistance or thickness to prevent water condensation and maintain optimal temperature conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-scale bioreactor is used to support large volume range, then the bioreactor can facilitate scaling up of culture volume, but maintaining temperature conditions becomes difficult and water condensation occurs on side walls
Solution Approach 1:
The holder is divided into multiple segments (first segment, second segment, third segment) with different perimeters, allowing each segment to provide tailored thermal support for different volume ranges. This segmentation enables the single bioreactor to handle various culture volumes while maintaining proper temperature control.
Solution Approach 2:
Different segments of the holder have different perimeters and thermal properties optimized for specific volume ranges. The first segment has a larger perimeter for smaller volumes, while the second and third segments have progressively smaller perimeters for larger volumes, providing localized thermal characteristics matched to the culture volume.
2Temperature
If heating is applied to maintain temperature, then temperature control improves, but water condensation may still occur on side walls altering osmolality
Solution Approach 1:
The holder segments provide localized thermal support with different perimeters optimized for specific volume ranges. This ensures uniform heat distribution throughout the culture media, eliminating cold spots on the side walls where condensation would otherwise form, while maintaining the required temperature for cell culture.
Solution Approach 2:
The holder structure creates uniform thermal potential throughout the culture media by providing consistent thermal support through its segments. This eliminates temperature gradients and cold spots that would lead to condensation, ensuring the entire culture environment maintains equipotential temperature conditions.
3Productivity
If a single culture vessel is used for large scale operations, then manual intervention is reduced, but temperature and parameter control becomes challenging
Solution Approach 1:
The holder is segmented into multiple sections with different perimeters, each optimized for specific volume ranges. This allows a single bioreactor to efficiently handle large-scale operations across different volumes while maintaining proper temperature and parameter control through the tailored thermal characteristics of each segment.
Solution Approach 2:
The holder structure serves multiple functions: it provides mechanical support for the culture vessel, delivers tailored thermal support for different volume ranges, and prevents condensation. This multi-functionality enables a single bioreactor system to handle diverse operating conditions without requiring multiple specialized devices.
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 solution effectively maintains a temperature gradient along the culture vessel, preventing water condensation and ensuring consistent internal parameters for cell culture, thereby enhancing the bioreactor's ability to support large-scale cell cultivation with reduced contamination risks.
Implementation Method 1
a heating component with varying electrical resistance or thickness
Implementation Method 2
a unitary structure having a gradually varied perimeter... to prevent water condensation and maintain optimal temperature conditions
Data Source
AI summary
A heating assembly for a bioreactor is disclosed. The heating assembly includes a holder having a plurality of segments coupled to each other to define a unitary structure and a heating component coupled to at least one segment of the plurality of segments. The unitary structure includes a top end, a bottom end, and a side wall. The side wall extends between the top end and the bottom end and along a circumferential direction of the heating assembly to define a cavity. At least a portion of the unitary structure has a gradually varied perimeter along a direction perpendicular to a plane which intersects the side wall and is parallel to the top end and the bottom end.