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Knowledge Article

How to choose the right sterile connection for biopharma: A complete and practical guide

By Colly Flowtech

Continuous bioprocessing in biotechnology manufacturing, focusing on process optimization and productivity improvements


As single-use systems become more common in biopharma, so does the need to choose the right sterile connection - a crucial component to ensure safe and efficient production. Therefore, it is important to understand what factors influence the choice of connection and how you can optimize your production with the right solution. 

In this guide, we go through the most important aspects to consider when choosing a sterile connection for single-use systems. By following these guidelines, you can ensure safe, efficient and cost-effective production. 

What is a sterile connection and why is it important? 

Sterile connectors are specially designed couplings that connect different parts of a bioprocessing system, such as tubes and bags, often within a single-use system. Their primary function is to prevent contamination by ensuring that no micro-organisms or particles enter the production flow. 

A good single-use sterile connection is both user-friendly and durable enough to withstand sterilization processes like autoclaving without compromising its function. Thus, choosing the right connector minimizes the risk of downtime and ensures that your bioprocess works optimally.

5 important factors when choosing a sterile connection for single-use systems

1. reliability and safety

Connections that minimize the risk of misconnection and ensure consistent performance are essential. This also facilitates the supply chain as you only need to deal with one part number. 

2. size and ease of use 

The right size is crucial both for the physical space and for the ease of handling of the connector. A user-friendly single-use connector is easy to assemble and at the same time designed to minimize the risk of mishandling.

3. Combined connections for efficiency 

For some applications, it may be a good idea to use combined sterile connectors that allow both quick and sterile connection and disconnection. These connections are designed to reduce time losses and improve workflow efficiency.  

4. Cost and scalability 

The cost of a single-use sterile connection should not only be assessed based on the purchase price, but also long-term scalability and performance. When selecting a sterile connection, one should take a helicopter perspective and ensure that the choice made is applicable to future processes.  

5. Supplier support and documentation  

A good supplier will help you with technical support, product documentation and certificates confirming that the connection meets all relevant requirements. Make sure your supplier can provide advice, expertise and a reliable supply chain - especially important when working with sensitive single-use systems.

Conclusion: Right connection, right result

Choosing the right single-use sterile connection in bioprocessing is about more than just a physical connection - it's a strategic investment in production safety and efficiency. Therefore, by carefully considering compatibility, materials, regulatory requirements and durability, you can optimize your system and minimize risks.

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