Cryoenic container having a reserve of liquid nitrogen and use for the storage of biological products

摘要

The central receiver is placed inside an intermediate receiver (3) which defines a first closed volume (4) for liquid nitrogen with the central receiver and a second closed volume (5) with the envelope. Cryogenic container with a liquid nitrogen reservoir for storing products. A central metallic receiver (2) contained in an envelope (1) has an internal volume which can be accessed by a top opening which allows products to be received. The second volume contains a super-insulation under vacuum (50). The central and intermediate receivers are concentric. A liquid nitrogen filling circuit (11) opens into the top part of the first closed volume and passes through the envelope. A degassing line (12) opens into the top part of the first closed volume and passes through the envelope. A gauge determining the level of the liquid nitrogen (10) is plunged into the first closed volume. The access opening can be closed by a bung (7) made of insulating material.