Hoffmann-la Roche Inc.

F. Hoffmann-la Roche Ag

Christoph Reese

Michael Pohlscheidt

Max Lechner

Alexander Scholz

Hermann Tebbe

Marco Jenzsch

The present patent application describes a stirrer comprising a combination of at least one axially-conveying element and at least one radially-conveying element relative to the rotary shaft of the stirrer wherein the largest diameter of the at least one axially-conveying element is equal to or less than the inner diameter dof the radially-conveying element. In one embodiment the stirrer according to the invention is a combination of one anchor stirrer with at least one inclined-blade stirrer. Furthermore the use of the stirrer according to the invention for the culture of cells in a dialysis method is described.

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Munich, Germany

Christoph Reese