A packaging including a grouping nest for receiving syringes, a packaging tub, and a sealing cover for sealing the packaging tub. The packaging includes a plate intended to be positioned close to the flanges of the syringes before sealing of the tub this plate includes a plurality of first surfaces intended to be placed in contact with the flanges and a plurality of second surfaces located on the side of the cover plate opposite this plurality of first surfaces, the distance between the plurality of first surfaces and the plurality of second surfaces being chosen in such a way that, when the plurality of first surfaces lies against the flanges, the plurality of second surfaces is in contact or in close proximity to the sealing cover.
