Assembly for freezing a plurality of packaging tubes, each of which is filled with a predetermined volume of a biological substance

摘要

The assembly has a cooling enclosure (9) passed through by the flow of cooling agent e.g. gaseous nitrogen, and a conditioning unit (6) removable and placed in the cooling enclosure. The conditioning unit has greater capacity than a set of conditioning tubes to directly receive the conditioning tubes. The enclosure is fixed with the assembly. A driving unit rotatably drives the conditioning unit, and is provided with a connection interface on which the removable conditioning unit is placed. An equilibration system is provided with an equilibration zone at predetermined stable temperature.