Otsuka Pharmaceutical Factory, Inc.

Akihito Togawa

Fujio Inoue

Isamu Tateishi

Tatsuro Tsuruoka

A method for reinforcing a weak sealed portion of a multi-chamber medical container by simple processing. The method for reinforcing a weak sealed portion of a multi-chamber medical container includes a multi-chamber container forming step for forming a multi-chamber medical containerincluding a first container portionfor containing a medicine, a second container portionfor containing a medical solution, an empty container portion, a pair of lateral side strong sealed portionsfor forming both side ends of the container portions, a medical solution side weak sealed portionfor forming a partition between the first container portionand the second container portion, and a discharge side weak sealed portionfor forming a partition between the first container portionand the empty container portion; and a weak sealed portion reinforcing step for bonding a reinforcement filmfor reinforcing the discharge side weak sealed portionso as to cover the surface of the first container portionand so as to be spaced in the discharge directionfrom a first borderwith the first container portionon the discharge side weak sealed portion

Method for reinforcing weak sealed portion of multi-chamber medical container

It is an object of the resent invention to provide a multi-chamber container that has a weak seal portion having an increased joining strength and being easy to be opened when in administration of medicine, and that is provided at low cost. The multi-chamber container includes a medicine accommodation chamber, a diluting solution chamberjointed to one side of the medicine accommodation chambervia a partitioning weak seal portion, an unoccupied chamberhaving a portand joined to an opposite side of the medicine accommodation chambervia a discharging weak seal portion, a film memberattached to the medicine accommodation chamberfor increasing a joining strength of each of the discharging weak seal portionand the discharging weak seal portion, the discharging weak seal portionhaving an easy-to-open portionthat enables the discharging weak seal portionto easily opened therethrough.

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Tokushima, Japan

Akihito Togawa