Patent ID: 8377029
Filing Date: 2013-02-19
Classification: A61J,A61M,B29C,B65B,B65D

Abstract:
1. A drug solution filling plastic ampoule comprising: a flexible container body having a mouth and containing a drug solution; a fusion-bonded portion which seals the mouth of the container body; and a holder tab connected to the fusion-bonded portion for wrenching off the fusion-bonded portion to open the mouth of the container body, wherein the flexible container body, the fusion-bonded portion and the holder tab are integrally molded from a tubular parison having three or more layers including an innermost layer composed of a polyolefin, an intermediate layer composed of blends of 20 to 50 wt % of polyolefin and 50 to 80 wt % of polycycloolefin to provide the container body with a steam permeation preventing capability and a drug permeation preventing capability and an outermost layer composed of a polyolefin, and a thickness of the intermediate layer is from 11.8 to 35.3% of a total thickness of the three or more layers.