Elastic Sample Chamber for High-Resolution Bioreactor Imaging
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Solution Overview
Problem
Conventional bioreactor systems face challenges such as limited accessibility of samples for examination, temperature fluctuations during medium changes, restricted optical resolution, and inhomogeneous incubation processes, which affect tissue maturation and functionality.
Innovation Solution
A bioreactor system with a sample chamber featuring an elastic, translucent, and biocompatible material like polydimethylsiloxane (PDMS) that allows for deformation, enabling closer proximity of examination units, and a design that supports high-resolution imaging and electrical stimulation, while maintaining a sealed environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional cell culture chambers with rigid walls are used, then structural stability is maintained, but optical resolution is limited by required working distances of objectives
Solution Approach 1:
The chamber wall is designed to be elastically deformable rather than rigid, allowing dynamic adjustment of wall position during examination. The wall can be deformed toward the examination unit to reduce working distance when high-resolution imaging is needed, while returning to its original position to maintain structural stability during cultivation.
Solution Approach 2:
The physical state of the chamber wall is changed from rigid to elastically deformable, fundamentally altering its mechanical properties. This allows the wall to temporarily change its position and shape in response to examination needs while maintaining overall structural integrity through elastic recovery.
2Ease of operation
If manual batch medium changes are performed, then operation simplicity is maintained, but temperature fluctuations affect sample homeostasis
Solution Approach 1:
The system transitions from discontinuous batch medium changes to continuous medium flow through the chamber. This continuous flow allows for gradual temperature equilibration and eliminates the repeated opening/closing cycles that cause temperature fluctuations, while still being easily controllable through automated flow regulation.
3Quantity of substance
If multi-chamber slide systems are used, then incubation capacity is increased, but incubation homogeneity deteriorates due to unpredictable effects on tissue maturation
Solution Approach 1:
Instead of using a multi-chamber slide system where multiple samples share a common environment, the invention uses multiple independent single-chamber systems. Each chamber operates independently with its own medium flow and environmental control, ensuring homogeneous incubation conditions for each sample while maintaining overall system capacity.
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 easy and continuous examination of samples with high-resolution imaging and electrical stimulation, maintaining optimal cultivation conditions and reducing the need for intermediate steps, thus improving tissue maturation analysis.
Implementation Method 1
at least one (first) chamber wall (18) is elastic so that it can be deformed when the examination unit (14) is moved along a first travel path (V1) through the examination unit (14)
Implementation Method 2
The chamber wall is translucent, allowing optical examination of the sample from outside the chamber
Data Source
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AI summary
A bioreactor system (2) is described, comprising a sample chamber (4) with an interior space (6) for receiving a sample (8), a holder (12) into which the sample chamber (4) is inserted, and an analysis unit (14) for examining the sample (8). The sample chamber (4) has at least one chamber wall (18) that is elastic enough to be deformed when the analysis unit (14) is moved along a first travel path (V1) through the analysis unit (14). A sample chamber (4) and a use for such a sample chamber (4) are also described.