Freezing storage device

Abstract

A freezing storage device having a freezing storage container, a receiving box for receiving the freezing storage container, and a handling robot placed on the receiving box, wherein the freezing storage container has a container body for storing a low-temperature liquefied gas, a cap for closing a mouth section of the container body and having insertion holes vertically penetrating through the cap, and ampoule receiving devices movably received in the insertion holes in the cap, the ampoule receiving devices each having a support pillar and ampoule receiving sections mounted vertically next to each other on the support pillar, and the cap having an ampoule placement and retrieval hole vertically penetrating through the cap. The receiving box receives the freezing storage container so that the container can be placed in and retrieved from the receiving box and has a work table placed at a position which is adjacent to the mouth section and is near the ampoule placement and retrieval hole.

Description

technical field [0001] The invention relates to a cryopreservation device for cryopreserving biological samples such as sperm, fertilized eggs and cells of animals. [0002] This application claims priority based on Patent Application No. 2008-268770 filed in Japan on October 17, 2008, and the content thereof is incorporated herein. Background technique [0003] As prior art related to such cryopreservation devices, for example, Japanese Patent Laid-Open No. 2005-143873, Japanese Patent Laid-Open No. 2005-156136, and Japanese Utility Model Publication No. 4-15911 are known. [0004] In these prior art, the following method is adopted: (1) a plurality of ampoules enclosing biological samples are accommodated in the accommodation portion of a storage box in which a plurality of storage portions are divided and formed, and a plurality of storage boxes in this state are It is further stored in a storage rack, and multiple storage racks containing hundreds to thousands of tubes ...

AI Technical Summary

Problems solved by technology

[0007] 1) When taking out the ampoule or straw sealed with the target sample, since a storage rack or canister is taken out of the storage container, most of the samples other than the target cryopreservation sample are exposed to normal temperature, and the temperature rise causes many samples damaged

In addition, the number of damaged ampoules or straws will increase

[0008] 2) Since the weight of one storage rack is several kg, it is difficult to take it out of the storage container and put it into the storage rack

In addition, sometimes the storage rack or canister will fall over in the storage container, or the storage box will fall from the storage rack, and sometimes the ampoules or straws will sink to the bottom of the storage container and cannot be collected.

[0009] 3) The storage position of the internal storage rack or tank cannot be known from the outside of the storage container, and multiple ampoules are stored in one storage rack or tank, so sample management is extremely complicated

[0019] Therefore, since it takes time to determine the ampoule holder and ampoule, and it is done manually, there is a possibility of taking the wrong ampoule holder and ampoule, and there is still room for improvement.

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