| abstract |
The present invention provides a drug solution filling plastic ampoule having gas, steam and light ray barrier properties, a drug permeation preventing capability and an absorption/adsorption preventing capability, and a production method for the plastic ampoule. The drug solution filling plastic ampoule ( 10 ) according to the present invention includes a container body ( 11 ), a fusion-bonded portion ( 13 ) which seals a mouth ( 12 ) of the container body, and a wrench-off holder tab ( 14 ) connected to the fusion-bonded portion. The ampoule ( 10 ) is formed from a parison including two or more layers, at least one of which is a functional layer having at least one characteristic property selected from the group consisting of a gas permeation preventing capability, a steam permeation preventing capability, a light ray permeation preventing capability, a drug permeation preventing capability and a drug absorption/adsorption preventing capability. That is, the parison is extruded from a multilayer blow forming die, and then held between lower split mold pieces to be formed into the container body ( 11 ). After a drug solution ( 15 ) is filled in the container body ( 11 ), the mouth ( 12 ) is held between upper split mold pieces to form the fusion-bonded portion ( 13 ) and the holder tab ( 14 ). Thus, the plastic ampoule is provided. |