Cartridge for the preparation of a solution for medical use

Cartridge for providing a solution for medical use, said solution being obtained by dissolving a plurality of substances in powder form in at least one liquid, said cartridge comprising:

• a container including a lateral wall of substantially revolving shape defining an opening at one of its two ends, a bottom wall at the other end of said lateral wall, said bottom wall being unitary with said lateral wall, said lateral and bottom walls defining a main volume, a central nucleus of substantially revolving shape provided interiorly of said main volume, said central nucleus being unitary, through one of its two ends, with said bottom wall and having a revolving axis which substantially coincides with that of the lateral wall, said central nucleus having a height substantially equal to that of said lateral wall thereby defining an annular volume inside said main volume, at least two separation walls imperviously unitary with said bottom wall, with the interior surface of the lateral wall and with the exterior surface of said central nucleus to define at least two secondary volumes in said annular volume, said secondary volumes having predetermined sizes depending on amounts of substances in powder form that said secondary volumes should contain, said substances in powder form to be mixed therein with a fluid and capable of forming solutions of said substances in said fluid;
• at least two fluid connections mounted in said bottom wall, and adapted to provide connections between the exterior of said container respectively with the two secondary volumes;
• wherein said fluid connections are arranged to deliver a fluid to said secondary volumes, said fluid to be mixed with said substances, and to withdraw therefrom said solutions formed therein.