A method for operating a bioreactor includes passing a drive shaft into a first tubular connector and a second tubular connector projecting from the first tubular connector, the first tubular connector and the second tubular connector being at least partially disposed within a container, the first tubular connector being more flexible than the second tubular connector, the second tubular connector having a length that comprises at least 20% of a combined length of the first tubular connector and the second tubular connector. Rotating the drive shaft so as to rotate the first tubular connector and the second tubular connector within the container.

A mixing system (10) including a base module (12), a mixing unit (26), and an enclosure (14). The base module (12) includes a base support (16), a drive unit (18) disposed within the base support (16), a drive shaft (22) coupled to the drive unit (18), and a drive head (24) coupled to the drive unit (18) via the drive shaft (22) and disposed within the base support (16). The drive head (24) includes a first magnet (25). The mixing unit (26) includes a guide element (28) and an agitator (30) slidably coupled to the guide element (28). The agitator (30) includes a second magnet (32) and at least one vane (34). The enclosure (14) is coupled to the base support (16) encloses the guide element (28) and the agitator (30). The drive unit (18) and the drive head (24) are configured to generate a linear pulsating movement of the agitator (30) along the guide element (28) for mixing a fluid medium (47) within the enclosure (14).

A mixing system (10) including a base module (12), a mixing unit (26), and an enclosure (14). The base module (12) includes a base support (16), a drive unit (18) disposed within the base support (16), a drive shaft (22) coupled to the drive unit (18), and a drive head (24) coupled to the drive unit (18) via the drive shaft (22) and disposed within the base support (16). The drive head (24) includes a first magnet (25). The mixing unit (26) includes a guide element (28) and an agitator (30) slidably coupled to the guide element (28). The agitator (30) includes a second magnet (32) and at least one vane (34). The enclosure (14) is coupled to the base support (16) encloses the guide element (28) and the agitator (30). The drive unit (18) and the drive head (24) are configured to generate a linear pulsating movement of the agitator (30) along the guide element (28) for mixing a fluid medium (47) within the enclosure (14).

Guard for impellers, methods of using the guards, impeller assemblies including the guards mounted to impellers, impeller systems, and biocontainer systems including the impeller systems, are disclosed.

This disclosure relates to equipment utilized to manufacture chemical agents, particularly biopharmaceuticals, using Disposable Containers (DCs).

A fluid transfer assembly for single use bioreactors includes a fluid transfer housing that can be mounted to the impeller shaft using a bearing that places the fluid transfer assembly directly below the lowest impeller but allows the impeller shaft to spin inside independently of the fluid transfer assembly. A fluid conduit connects the fluid transfer housing to a port in the single use bag wall which allows fluids to be introduced into the sparger and which also helps prevent the fluid transfer assembly from rotating with the impeller shaft.

A fluid mixing system includes a container, such as a flexible bag, bounding a compartment. A flexible drive line is disposed within the compartment, the drive line having a first end rotatably connected to a first end of the container and an opposing second end rotatably connected to a second end of the container. At least one mixing element, such as an impeller, is coupled with the flexible drive line. Rotation of the drive line facilitates rotation of the impeller within the container.

A single-use bioreactor is provided. The single-use bioreactor may include a bioprocess container, a shell, at least one agitator, at least one sparger, at least one gas filter inlet port for the sparger(s) and headspace overlay, at least one fill port, at least one harvest port, at least one sample port, and at least one probe. In examples, at least one controller may monitor and control one or more parameters associated with the single-use bioreactor A method to cultivate and propagate mammalian cells is also provided. The method may include cultivating under suitable conditions and in a suitable culture medium in a first single-use bioreactor, transferring the medium containing the cells obtained by propagation from the at least one mammalian cell is into a second single-use bioreactor, transferring the medium containing the cells obtained by propagation from the at least one mammalian cell is into a third single-use bioreactor, and cultivating the cells in the third bioreactor.

A bioprocess vessel includes a flexible bag or substantially rigid container that defines an interior volume and having a bottom surface, the bottom surface being open or containing an aperture therein for the passage of fluid. A pump is secured to the bottom surface of the flexible bag or substantially rigid container. In some embodiments is secured directly to the flexible bag or substantially rigid container. In other embodiments, the pump is secured indirectly the flexible bag or substantially rigid container using, for example, a port that extends through the aperture on the bottom surface. The port or flanged surface may also be integrated into the pump, which is secured to the vessel. An optional mixing adaptor may be provided inside the interior volume of the flexible bag or substantially rigid container and at least partially covers the inlet that leads to the pump.

A bioprocess vessel includes a flexible bag or substantially rigid container that defines an interior volume and having a bottom surface, the bottom surface being open or containing an aperture therein for the passage of fluid. A pump is secured to the bottom surface of the flexible bag or substantially rigid container. In some embodiments is secured directly to the flexible bag or substantially rigid container. In other embodiments, the pump is secured indirectly the flexible bag or substantially rigid container using, for example, a port that extends through the aperture on the bottom surface. The port or flanged surface may also be integrated into the pump, which is secured to the vessel. An optional mixing adaptor may be provided inside the interior volume of the flexible bag or substantially rigid container and at least partially covers the inlet that leads to the pump.