Medicament cartridge
First Claim
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.
2 Assignments
0 Petitions
Accused Products
Abstract
Many of those having diabetes take a combination of slow and fast acting types of insulin. It is important that the different forms of medicament do not become confused. To this end, a medicament cartridge is provided comprising a sleeve having a bottleneck providing a flange at a first end, a fluid impermeable membrane secured across the first end by a metal 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 and an adaptor top 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.
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Citations
30 Claims
- 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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11. A cartridge usable to house medicament, the cartridge comprising:
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a sleeve having first and second ends, and a flange at the first end, the flange defining an exterior surface; a fluid impermeable membrane at the first end of the sleeve; a cap that communicates with the flange to retain the membrane at the first end of the sleeve; a displaceable piston located within the sleeve at the second end; a collar that contacts the exterior surface of the flange, the collar being separate from the cap; and an adaptor top that communicates with the collar to retain the adaptor top over the cap and the collar, the adaptor top being separate from the cap. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A cartridge usable to house medicament, the cartridge comprising:
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a sleeve having first and second ends, and a flange at the first end, the flange defining an exterior surface; a fluid impermeable membrane at the first end of the sleeve; a cap that communicates with the flange to retain the membrane at the first end of the sleeve; a displaceable piston located within the sleeve at the second end; a collar that contacts the exterior surface of the flange; and an adaptor top that communicates with the collar to retain the adaptor top over the cap and the collar, the adaptor top being separate from the cap; wherein the adaptor top and the cap each define overlapping apertures over the membrane such that a portion of the membrane is exposed to an exterior of the cartridge. - View Dependent Claims (29)
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30. A cartridge usable to house medicament, the cartridge comprising:
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a sleeve having first and second ends, and a flange at the first end, the flange defining an exterior surface; a fluid impermeable membrane at the first end of the sleeve; a cap that communicates with the flange to retain the membrane at the first end of the sleeve; a displaceable piston located within the sleeve at the second end; a collar that contacts the exterior surface of the flange; and an adaptor top that communicates with the collar to retain the adaptor top over the cap and the collar, the adaptor top being separate from the cap; wherein the adaptor top includes a longitudinal skirt portion defining opposite first and second ends, a top portion adjacent the first end of the skirt portion and defining an aperture, and a bead portion adjacent the second end of the skirt portion; and wherein the adaptor top is press fit over the cap and collar, such that the bead portion of the adaptor top contacts the collar, and the skirt portion of the adaptor top contacts the cap, to retain the adaptor top over the cap and the collar.
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Specification