Assembly for an injection or infustion device

A method for assembling an assembly for an injection or infusion device, comprising the steps of:

• providing a cartridge comprising a sterile liquid medicament, formed as a barrel, the cartridge being closed by a septum fastened to the barrel by a crimp, a surface of the septum opposite to a surface contacting the liquid medicament being sterile and covered by a first area of a first continuous flexible strip attached to a surface of the crimp, thereby keeping the opposite surface of the septum in a sterile condition;
• providing a fluid path unit comprising a cartridge holder and a fluid path compartment comprising a needle or spike in an interior of the fluid path compartment, wherein the needle or spike is configured to penetrate the septum of the cartridge through a passage defined in a surface of the fluid path compartment, wherein the passage is closed by a second continuous flexible strip that is attached to the surface of the fluid path compartment, the second continuous flexible strip having a second area covering the passage thereby keeping the interior of the fluid path compartment in a sterile condition;
• and
• inserting the cartridge in the cartridge holder of the fluid path unit such that the septum is aligned with the passage of the fluid path compartment and that the first continuous flexible strip and the second continuous flexible strip contact each other and are sandwiched between the septum and the fluid path compartment,
• wherein the first continuous flexible strip comprises a first free end and the second continuous flexible strip comprises a second free end, the first free end and the second free end arranged substantially parallel to another adjacent from the passage during insertion, and
• wherein, by pulling the first and second free ends, the first and second continuous flexible strips are detachable from the assembly upon removal from the surface of the crimp and the surface of the fluid path compartment.

An injection or infusion device comprising an assembly which has been assembled in which:

• the assembly comprises:
• a cartridge comprising a sterile liquid medicament, formed as a barrel, the cartridge being closed by a septum fastened to the barrel by a crimp, wherein a surface of the septum opposite a surface contacting the liquid medicament being sterile and covered by a first area of a first continuous flexible strip attached to a surface of the crimp, thereby keeping the opposite surface of the septum in a sterile condition;
• and
• a fluid path unit comprising a cartridge holder and a fluid path compartment comprising a needle or spike in an interior of the fluid path compartment, wherein the needle or spike is configured to penetrate the septum of the cartridge through a passage defined in a surface of the fluid path compartment, wherein the passage of the fluid path compartment is closed by a second continuous flexible strip attached to the surface of the fluid path compartment, the second continuous flexible strip comprising a second area covering the passage thereby keeping the interior of the fluid path compartment in a sterile condition, and
• wherein:
• the cartridge is inside in the cartridge holder of the fluid path unit such that the septum of the cartridge is aligned with the passage of the fluid path compartment and the first continuous flexible strip and the second continuous flexible strip contact each other and are sandwiched between the septum and the fluid path compartment,
• wherein the first continuous flexible strip comprises a first free end and the second continuous flexible strip comprises a second free end, the first free end and the second free end arranged substantially parallel to another adjacent from the passage, and
• wherein, by pulling the first free end and the second free end, the first continuous flexible strip and the second continuous flexible strip are detachable from the assembly upon removal from the surface of the crimp and the surface of the fluid path compartment for establishing a sterile connection between the first surface of the septum and the interior of the fluid path compartment.