Vitrification freezing carrier

A vitrification freezing carrier, comprising:

• a tube body, wherein the tube body is of a hollow structure with an opened end, and a matching part is provided at the opened end;
• a tube cap, wherein the tube cap is provided with a covering part and an extending part, the covering part matches the matching part, the extending part is connected to the covering part, and the covering part is of a hollow structure with one end closed;
• a carrying rod, wherein the carrying rod is arranged on a side, facing an interior of the tube body, of the covering part, and the carrying rod extends into the tube body when the tube cap is attached to the tube body and is removable from the tube body when the tube cap is separated from the tube body;
• and
• an auxiliary sampling mechanism, wherein the auxiliary sampling mechanism comprises a carrier body and an elastic reset assembly arranged on the carrier body, the carrier body is provided with a locking part, the locking part is configured to be matched with the covering part to drive the covering part to move, the elastic reset assembly comprises a driving part and an elastic part driven by the driving part, the elastic part is movable from a first position to a second position, in the first position, the elastic part is connected to the extending part in a matched manner, and in the second position, the elastic part is detached from the extending part, and an inner wall of the extending part is used to limit the elastic part from detaching from the extending part;
• wherein the carrier body is provided with an accommodating chamber, the driving part is partially accommodated in the accommodating chamber and partially exposed to an outside of the carrier body, and the elastic part is accommodated in the accommodating chamber and is partially exposed to the outside of the carrier body when in the first position;
• wherein the carrier body is provided with an opening in communication with the accommodating chamber, the elastic part comprises a fixed body and a deformable body which are connected to each other, the fixed body is connected to the driving part, and the deformable body extends out of the opening when the elastic part is in the first position and is retracted from the opening when the elastic part is in the second position, and in response to the deformable body being extended out from the opening in the first position, the deformable body is elastically deformed and connected to the inner wall of the extending part.