Patent ID: 8870844

Claim:
A device for conserving and extemporaneously preparing a single injectable dose of at least one unstable active principle prior to administration, the device comprising: a body made of thick plastic material or glass, said body comprising at least one compartment for containing at least one volume of pharmaceutical solvent that is less than 5 mL; a head comprising at least one compartment for containing at least one active principle, and, in a top portion of the compartment, by at least one dose-taking chamber provided with a filter separating the compartment for containing the active principle from the dose-taking chamber, said head comprising a sterile perforatable membrane for protecting the dose, said device comprising a removable protective cap held on said head, the head being capable of taking up a first position P 1 for conservation, in which said head is in its distal position relative to the body, and a second position P 2 for preparation, in which said head is in its proximal position relative to the body; at least one wall separating the body and the head; and a perforator for rupturing said wall so that the active principle enters into contact with the solvent and dissolves therein.