Device for preparing and/or treating a biological sample

A device for preparing, treating, and/or analyzing a biological sample, comprising:

• an assembly of storage chambers and/or reaction chambers intended for receiving a fluid, said chambers having shared walls so as to form an assembly of adjacent chambers aligned along a chamber alignment axis, said walls including a membrane or septum, said septum being able to be pierced by a needle, then recovering its seal once the needle is removed, the septum or septa constituting the wall(s) being located in a plane traversed by the chamber alignment axis,
• means for moving said fluid from and/or towards at least one of said chambers of the assembly, said movement means comprising:
• a needle connected to a transfer compartment,
• suction/delivery means for said liquid connected to the needle upstream therefrom and separately from the volume of the chambers of the assembly, and
• driving means arranged to translate the needle and the assembly of chambers relative to each other along the chamber alignment axis, such that the needle pierces the septum, and
• a chamber configured for storing, a reaction waste the chamber being disposed upstream from the transfer compartment and being in fluid connection with the transfer compartment.