Modular Autonomous Bioreactor for Sterile Tissue Engineering
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Solution Overview
Problem
Current bioreactors for tissue-engineered construct manufacturing are challenging to scale up due to the need for external power sources, which compromises sterility and increases infection risk, and are often too small or highly customized, making them expensive and inefficient for large-scale production.
Innovation Solution
A modular, autonomous bioreactor system that provides mechanical stimulation to tissue-engineered constructs within a sterile environment using a movable and fixed part configuration with a self-contained power source, allowing for accurate and repeatable stretching functions without external connections, ensuring sterility and scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If external power sources and wired connections are used to provide mechanical stimulation, then mechanical control capability is improved, but sterility is compromised and infection risk increases
Solution Approach 1:
The power source and control electronics are extracted from the external environment and placed inside the sterile bioreactor chamber. This allows mechanical stimulation to be provided without external wired connections, eliminating the infection pathway while maintaining full mechanical control capability.
Solution Approach 2:
The bioreactor is designed to be self-contained with internal power sources (batteries) and control systems that operate autonomously within the sterile environment. The system serves itself by generating and controlling mechanical stimuli without requiring external intervention or connections.
2Manufacturing precision
If highly customized bioreactor systems are used to provide mechanical stimulation, then mechanical control precision is improved, but manufacturing cost and scalability worsen
Solution Approach 1:
The bioreactor system is divided into modular components including stackable chambers, separable power units, and interchangeable mechanical stimulation mechanisms. This segmentation allows standardized mass production of individual modules while maintaining precise mechanical control through consistent modular interfaces and assemblies.
Solution Approach 2:
The bioreactor design incorporates universal interfaces and standardized components that can be configured for different tissue engineering applications. The same basic platform can serve multiple functions through modular attachments, reducing development and manufacturing costs while maintaining precision through standardized design.
3Productivity
If bioreactors are scaled up for mass production, then productivity is improved, but maintaining sterility without external connections becomes more difficult
Solution Approach 1:
Multiple bioreactor chambers can be stacked and operated simultaneously as an integrated system, each maintaining independent sterility while contributing to overall productivity. The combination of multiple sealed units allows parallel processing of multiple constructs without compromising individual sterility barriers.
Data Source
AI summary
A modular bioreactor system for creating tissue-engineered constructs is described. The bioreactor system includes a bioreactor with a driving system and a chamber for holding a graft. The bioreactor system also includes a housing with a motor capable of engaging the driving system to continuously mechanically stimulate the graft.