Medicament cartridge assembly

Abstract

A person having diabetes will often be required to take both slow acting and fast acting forms of insulin. It is important to be able to distinguish readily between medicament cartridges containing different medicaments. The present invention enables more ready distinction as between medicament cartridges containing different medicaments. An adaptor top for a medicament cartridge, the medicament cartridge comprising a cylinder having a main body portion, a neck portion at a first end having a radially outwardly directed flange portion, a narrowing shoulder portion connecting the body portion and the neck portion, a cap beaded across the first end thereby to retain a fluid impermeable membrane, and the adaptor top comprising a first cylindrical body portion having a radially inwardly directed flange at one end, in use to be seated over and against the cap and a second cylindrical skirt portion being adapted, in use, to be seated against the shoulder portion of the cartridge, the second skirt portion including a plurality of fingers, the free ends of the fingers in use being adapted to be seated beneath the outwardly directed flange of the medicament cartridge.

What is claimed is: 
     
         1 . An assembly comprising a medicament delivery apparatus, a medicament cartridge and an adaptor top for the medicament cartridge,
 the medicament cartridge comprising a cylinder having a main body portion, a neck portion at a first end having a radially outwardly directed flange portion, a narrowing shoulder portion connecting the body portion and the neck portion, and a cap beaded across the first end thereby to retain a fluid impermeable membrane, and   the adaptor top comprising a first cylindrical body portion having a radially inwardly directed flange at one end seated over and against the cap and a second skirt portion being seated against the shoulder portion of the cartridge, the second skirt portion including a plurality of fingers, the free ends of the fingers being seated beneath the outwardly directed flange of the medicament cartridge,   wherein the medicament cartridge is configured to be received and secured within the medicament delivery apparatus.   
     
     
         2 . The assembly according to  claim 1 , in which the adaptor top is color coded to provide information regarding the content of the medicament cartridge. 
     
     
         3 . The assembly according to  claim 1 , in which the first cylindrical body portion is provided with a screw thread. 
     
     
         4 . The assembly according to  claim 1 , in which the cylinder comprises a displaceable plunger located internally of the cylinder towards a second end of the cylinder.