Automated vault module
Cryogenic storage system provides automated storage and retrieval of samples in a cryogenic environment, as well as automated transfer of individual samples between cryogenic environments. Stored samples are maintained under a cryogenic temperature threshold, while also enabling access to the samples. The samples may be organized and tracked by scanning a barcode of each sample. The system may also comprise multiple storage vaults and provide for transfer of individual samples between the storage vaults, as well as between a storage vault and a removable cryogenic storage device.
1 . A cryogenic storage vault comprising:
an insulated freezer; and
at least one refrigerant coil positioned at a top portion internal to the insulated freezer, the at least one refrigerant coil configured to expel a refrigerant into the insulated freezer via a plurality of orifices.
2 . The storage vault of claim 1 , further comprising at least one rack configured to store a plurality of trays, each storing a plurality of samples, the rack positioned below the at least one refrigerant coil.
3 . The storage vault of claim 2 , wherein the at least one refrigerant coil is further configured to expel the refrigerant through the rack toward a bottom portion of the insulated freezer.
4 . The storage vault of claim 1 , wherein the at least one refrigerant coil is further configured to expel the refrigerant in a manner that maintains a positive pressure within the insulated freezer.
5 . The storage vault of claim 1 , wherein the insulated freezer is a Dewar vessel.
6 . A method of removing sample storage racks from a cryogenic storage freezer comprising a spindle of sample storage racks holding sample trays, the method comprising:
removing a lid of the cryogenic storage freezer;
covering an open top end of the cryogenic storage freezer with an insulated shroud; and
lifting the spindle of sample storage racks into a volume enclosed by the insulated shroud.
7 . The method of claim 6 , further comprising:
moving the insulated shroud to a position above a replacement cryogenic storage freezer; and
lowering the spindle of sample storage racks into the replacement cryogenic storage freezer.