Fresenius Ag

Reinhold Herbert

Klaus Sommermeyer

Franz Cech

Jurgen Koenig

Container for the separate sterile storage of at least two substances

The invention relates to a multichamber bag (1), the bag chambers (2, 3) of which are separated via a separating means (4), the squeeze-off means (5) of which temporarily separates the bag contents. To avoid being restricted to specific sheet types in the use of the material for the multichamber bag, in the region of the subsequent mixing opening an elastic sheet strip is arranged which serves as seal on actuation of the squeeze-off means (5).

Multichamber bag

The present invention describes package units for medical purposes, in particular for receiving and/or storing sterilizable preparations for parenteral uses or dialysis solutions, comprising a container having at least one discharge spout and consisting of polyamide 66 or a laminate of polyamide 66 sheet and polyolefin sheet, the polyolefin sheet being disposed on the side facing the liquid to be stored and the sheet of polyamide 66 being disposed on the outside and the two sheets being bonded together in usual manner by means of an adhesive. The package units may further comprise an inner container or an outer container. The package unit is made in that a container having at least one discharge spout is made from polyamide 66 or the aforementioned laminate, said container filled with the liquid to be stored, then sealed and sterilized and possibly subsequently surrounded after cooling and drying with an outer container of polymeric material. Package units according to the invention may also be made in that from a polymeric material an inner container having at least one discharge spout is made, said container filled with the liquid to be stored, sealed, then surrounded with an outer container of polyamide 66 or a laminate of polyamide 66 sheet and polyolefin sheet, the polyolefin sheet being disposed at the side of the laminate facing the inner container and the sheet of polyamide 66 of the laminate representing the outer sheet, and thereafter sterilized.

Package units for medical purposes

A bag for storing liquids for medical purposes such as blood and liquids for parenteral administration and which has neutral physiological properties is made of polyolefin material that is more specially in the form of a polyethylene film for the body of the bag and a copolymer of ethylene and vinyl acetate, with more specially 20 to 32% by weight of vinyl acetate, as a material for the hose connector. The copolymer is welded to the material of the body of the bag and then cross linked.

Bag for the storage of liquids

The invention relates to a storage bag, in particular for medical purposes for storing blood or infusion solutions, comprising a thermoplastic polymer material and having at least one outlet comprising a tube member.

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Neu-Anspach, Germany

Reinhold Herbert