A U.S. Patent for a “Bioreactor Container and Integrity Check Method for Bioreactor Containers” was awarded to Sartorius Stedim on March 26th, 2019. The present invention is a bioreactor container comprising: an at least locally flexible wall that has a fluid-impermeable inner sheet and an at least locally structured outer sheet, the structured outer sheet being configured to separate the fluid-impermeable sheet from an object outside the bioreactor container so that the object from outside the bioreactor container does not come in direct mechanical contact with the fluid-impermeable inner sheet and so that a leak in the fluid-impermeable inner sheet cannot be sealed by the object. Learn More