Single-Use Perfusion Bioreactor

What is the Single-Use Perfusion Bioreactor?

A single-use perfusion bioreactor combines a disposable cultivation bag with a cell-retention device for continuous feeding and harvest. It supports high cell densities, continuous production and intensified processes in modern multi-product facilities.

Overview

A single-use perfusion bioreactor adds a retention device to a disposable cultivation bag so that medium is exchanged continuously while cells remain in the vessel. Retention may use an alternating tangential flow filter, a tangential flow membrane or a disposable settler, all connected through aseptic tubing. Perfusion rate is set in vessel volumes per day according to the cell-specific demand, and the product is harvested in the permeate or overflow. Removing metabolites and supplying fresh nutrients raises achievable cell density and shortens product residence time, which suits labile molecules and intensified processes. The single-use fluid path avoids cleaning validation, and the design usually incorporates a stirred or rocking bag with single-use pH and dissolved oxygen sensors. Reliable pumps, filter pressure monitoring and a controlled cell bleed are essential.

How does it work?

A single-use bioreactor replaces the product-contact fluid path with a pre-sterilized bag, tubing set, filters and connectors, while the hardware provides mixing, temperature control, sensors and pumps. The bag is irradiated by the supplier, so no cleaning or sterilization is needed before use, and it is discarded after the batch. Mixing is provided by a magnetically coupled impeller, a rocking platform or orbital shaking, depending on the design, and gas exchange occurs through a sparger or a gas-permeable film. Single-use pH and dissolved oxygen sensors are built into the bag or connected as patches and read by reusable transmitters. Because the fluid path is new each time, changeover is fast and cross-contamination between products is limited, but extractables and leachables, bag integrity, pressure and volume limits and supply continuity must all be managed.

What are the key features?

• Disposable cultivation bag with retention device
• ATF, TFF or settler retention options
• Continuous feed and harvest
• Single-use pH and dissolved oxygen sensors
• No cleaning validation for the fluid path

What are the technical specifications?

A typical single-use perfusion bioreactor configuration offers working volume of 1–500 L, perfusion rate of 0.5–5 vessel volumes per day, cell retention of ATF, TFF or settler, mixing of Stirred or rocking bag, temperature range of 10–45 °C and run duration of Weeks. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Single-Use Perfusion Bioreactor is used in high-density cell culture, unstable product manufacturing, continuous bioprocessing and cell therapy and viral vector production. Across the wider Single-Use Bioreactors class, laboratories also deploy it for clinical and multi-product manufacturing, monoclonal antibody production and cell therapy manufacturing.

Which standards and certifications apply?

Relevant standards and methods include EU GMP Annex 1, EU GMP Annex 11, 21 CFR Part 11, ISO 11137, USP <661>, USP <665>, BPOG extractables guidance, ISO 13485 and IEC 61010-1. Certification candidates for this model are CE, ISO 13485 manufacturing and ISO 11137 sterilization; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Inspect bags and tubing on receipt and before fitting, and perform the specified integrity check. Follow the supplier instructions for installation, inflation and leak testing, and avoid sharp edges that could puncture the film. Verify single-use sensor performance against offline measurements, because calibration may drift during long runs. Manage lot changes and supplier updates through change control, since these can affect performance. Handle the bag assembly with clean gloves and aseptic technique at connections, and store bags within the specified temperature and humidity range. Record bag lot numbers with each batch, and dispose of used bags according to local biohazard regulations.

How do I select the right Single-Use Perfusion Bioreactor?

Choose single-use perfusion when you need high density, continuous harvest and no cleaning validation. In an RFQ specify the volume, the retention technology, the perfusion rate range, the mixing principle, filter monitoring and the control features required.

How does it compare with other Single-Use Bioreactors variants?

Choose the mixing principle from the culture and scale: stirred bags give higher oxygen transfer for demanding cells, rocking and orbital designs are gentler for shear-sensitive cultures and smaller volumes, and airlift and perfusion formats add specific capabilities. Confirm the working volume range and the bag sizes available, and check that the oxygen transfer rate meets the peak demand of your process. Verify which sensors are single-use and how they are calibrated, and check that the bag geometry matches your mixing and sampling needs. Review extractables and leachables data, bag integrity test methods, pressure ratings and storage and shelf life. Decide whether a reusable or disposable sensor path suits your facility, and confirm that the packaging, aseptic connectors and supply agreements fit your clinical or commercial timeline.