Process and container for freeze drying under sterile conditions
AssigneeBoehringer Mannheim GmbH
InventorsThomas Bergmann, Herbert Brustmann
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Abstract
The present invention provides a process for freeze drying of especially biologically or pharmaceutical material under sterile conditions, wherein the material to be dried is introduced into a container the sides of which consist at least partly of a hydrophobic, porous, micro-organism-impermeable, water vapor-permeable membrane, the container is tightly closed and the material is subsequently freeze dried in the closed container under the usual conditions. The present invention also provides a container for freeze drying materials under sterile conditions, wherein the sides of the container consist at least partly of a hydrophobic, porous, germ-impermeable, water vapor-permeable membrane.
Claims12
The method of freeze drying biological or pharmaceutical material under sterile conditions, which comprises introducing said material into a container the sides of which consist at least partly of a hydrophobic, porous, microorganism-impermeable and water vapor-permeable membrane, tightly closing the container and freeze drying said material under sterile conditions inside the closed container in a non-sterile ambient environment.
Dependencies are inferred from the claim text.