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Medicament cartridge

  • US 7,637,899 B2
  • Filed: 12/02/2002
  • Issued: 12/29/2009
  • Est. Priority Date: 12/06/2001
  • Status: Active Grant
First Claim
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1. A medicament cartridge comprising a sleeve having a bottleneck providing a flange at a first end, a fluid impermeable membrane secured across the first end by a cap beaded beneath the flange, and a displaceable piston located internally of the sleeve towards a second end of the sleeve, a collar located against an external periphery of the cartridge housing beneath the flange, the collar being separate from the cap, and an adaptor top in a press fit over the cap and the collar, the adaptor top being provided with means to act upon the collar thereby to retain the adaptor top on the sleeve, the adaptor top being separate from the cap.

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