Patent ID: 7963955

Claim:
A container for a medicament for use as an interchangeable cartridge in an inhaler, the container being gas-tight and liquid-tight, comprising: a sealed-edge foil bag which is collapsible at a differential pressure below 300 hPa (300 mbar), wherein said foil bag plastically and irreversibly collapses in a predetermined manner such that said foil bag retains its initial length after emptying, said foil bag having at least one welded seam of a substantially T-shaped or substantially V-shaped configuration to seal edges of said foil bag and close a first end of said foil bag; a one-piece flange sealingly connected to a second end of said foil bag for closing said second end of said foil bag, said flange having a guide passage formed therein for sealingly fitting said container onto a discharge connection member of the inhaler; a pierceable membrane to seal said container whereby said pierceable membrane is pierced by the discharge connection member when said container is fitted onto the discharge connection member, wherein said flange is a monolithic structure including said pierceable membrane and said guide passage, and said guide passage has an end portion that extends into an interior chamber of said foil bag, wherein said pierceable membrane is disposed at an end of or within said end portion.