Handheld low-temperature container

Abstract

The utility model discloses a handheld low-temperature container which comprises a transparent heat preservation outer shell and a transparent freezing shell, the outer side of the freezing shell is wrapped with the heat preservation outer shell, a containing groove is formed in the freezing shell, the inner wall of the containing groove is coated with a transparent heat conduction layer, a cavity is formed in the freezing shell, and the heat conduction layer is arranged in the cavity. The cavity is filled with transparent refrigerating fluid, a low-temperature environment is provided when the tissue is cut into pieces, and the effectiveness of the cutting operation is guaranteed through the transparent container.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental instruments, and more particularly relates to a handheld low-temperature container. Background Art

[0002] During RNA sample extraction, to ensure RNA integrity, the RNA-containing tissue must be placed in an EP tube in advance. The EP tube must then be placed in a refrigerator or on ice. During extraction, the procedure must be performed on ice to minimize degradation, making it difficult to observe the fragmentation of the specimen. To facilitate visual observation of the fragmentation process, the EP tube must be held in the hand close to the eye, and small scissors must be inserted into the tube to perform the fragmentation. However, human hands are relatively warm, and body heat can affect the tissue through the tube during the fragmentation process. Therefore, ice is usually held in the hand to keep the tube in contact with the EP tube to maintain a low temperature. However, the low temperature of the ice can cause discomfort to the operator, forcing the fragmentation operation to be performed only for a short period of time. Another method is to place the EP tube directly in a refrigerator or on a large ice block for fragmentation. However, in this case, the operator's eyes are far away from the EP tube, resulting in blind fragmentation. Although this method can keep the tissue cold, it cannot effectively observe the fragmentation process, making it difficult to accurately fragment the tissue, and the probability of wasted effort is high. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a handheld low-temperature container, which provides a low-temperature environment for tissue shredding, and the transparent container ensures the effectiveness of the shredding operation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a handheld low-temperature container, comprising a transparent heat-insulating outer shell and a transparent freezing shell, the heat-insulating outer shell being wrapped around the outside of the freezing shell, a placement groove being provided on the freezing shell, the inner wall of the placement groove being coated with a transparent heat-conductive layer, a chamber being provided in the freezing shell, and the chamber being filled with a transparent freezing liquid.

[0005] Furthermore, a transparent heat-insulating cover is rotatably connected to the heat-insulating outer shell, one side of the heat-insulating cover is open, and an operating cavity is formed between the heat-insulating cover and the end of the freezing shell.

[0006] Furthermore, a connecting convex ring is provided on the freezing shell, the heat-insulating cover is rotatably connected to the connecting convex ring, and the heat-insulating outer shell is detachably connected to the connecting convex ring.

[0007] Furthermore, the heat-insulating outer shell is provided with an internal threaded hole, the connecting convex ring is provided with an external threaded surface, and the heat-insulating outer shell is threadedly connected to the connecting convex ring.

[0008] Furthermore, the connecting convex ring is provided with a first convex ring and a first ring groove, and the heat-insulating cover is provided with a second ring groove corresponding to the first convex ring and a second convex ring corresponding to the first ring groove.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: before use, the heat-insulating outer shell is removed, and the freezing shell is placed in a refrigeration device such as a refrigerator. The freezing liquid in the freezing shell is taken out after being frozen, and the heat-insulating outer shell is put back on after being taken out. Then, the tissue is placed in the placement groove of the freezing shell through the opening on the heat-insulating cover. When the tissue is cut into pieces, the scissors are inserted into the operating cavity through the opening on the heat-insulating cover to cut the tissue into pieces. The low-temperature container can provide a low-temperature environment for tissue cutting, and the completely transparent container can enable the operator to clearly and intuitively understand the cutting situation of the tissue in the container placement groove, thereby ensuring the effectiveness of the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of the handheld low-temperature container of the present utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the freezing shell in the handheld low-temperature container of the utility model;

[0012] Figure 3 This is a schematic structural diagram of the heat preservation cover in the handheld low-temperature container of the present utility model;

[0013] Figure 4 This is a schematic structural diagram of the heat-insulating outer shell of the handheld low-temperature container of the present invention.

[0014] Reference numerals: heat-insulating outer shell 1; freezing shell 2; placement groove 3; heat-conducting layer 4; freezing liquid 5; heat-insulating cover 6; opening 7; connecting convex ring 8; internal threaded hole 9; external threaded surface 10; first convex ring 11; first annular groove 12; second annular groove 13; second convex ring 14. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0017] Reference Figures 1 to 4 The utility model is further described.

[0018] A handheld low-temperature container includes a transparent heat-insulating outer shell 1 and a transparent freezing shell 2. The heat-insulating outer shell 1 is wrapped around the outside of the freezing shell 2. The freezing shell 2 is provided with a placement groove 3. The inner wall of the placement groove 3 is coated with a transparent heat-conducting layer 4. The freezing shell 2 is provided with a chamber, which is filled with a transparent freezing liquid 5.

[0019] Specifically, the size and depth of the placement groove 3 can be changed according to the size of the tissue and the requirements of the shearing operation. For example, the opening 7 of the placement groove 3 can be set to be V-shaped to facilitate the shearing operation.

[0020] Specifically, the freezing liquid 5 can be a common sodium polyacrylate aqueous solution or pure water or other liquids that can remain transparent after freezing.

[0021] Specifically, if the volume of the freezing liquid 5 expands after freezing, the chamber of the freezing shell 2 should not be filled with the freezing liquid 5. If the volume shrinks or remains unchanged after freezing, the chamber of the freezing shell 2 can be filled. A freezing shell 2 made of elastic transparent material can also be used. When the volume of the freezing liquid 5 shrinks after freezing, a certain amount of freezing liquid 5 can be injected.

[0022] like Figure 1 and Figure 3 As shown, in this embodiment, preferably, a transparent heat-insulating cover 6 is rotatably connected to the heat-insulating shell 1 , one side of the heat-insulating cover 6 is an opening 7 , and an operating cavity is formed between the heat-insulating cover 6 and the end of the freezing shell 2 .

[0023] Specifically, a detachable or rotatable insulation cover plate may be provided on the opening 7 of the insulation cover 6 .

[0024] like Figure 2 As shown, in this embodiment, preferably, a connecting protruding ring 8 is provided on the freezing shell 2, the heat-insulating cover 6 is rotatably connected to the connecting protruding ring 8, and the heat-insulating outer shell 1 is detachably connected to the connecting protruding ring 8.

[0025] like Figure 2 and Figure 4As shown, in this embodiment, preferably, the heat-insulating shell 1 is provided with an internal threaded hole 9 , the connecting protruding ring 8 is provided with an external threaded surface 10 , and the heat-insulating shell 1 is threadedly connected to the connecting protruding ring 8 .

[0026] like Figure 2 and Figure 3 As shown, in this embodiment, preferably, the connecting convex ring 8 is provided with a first convex ring 11 and a first annular groove 12 , and the heat-insulating cover 6 is provided with a second annular groove 13 corresponding to the first convex ring 11 and a second convex ring 14 corresponding to the first annular groove 12 .

[0027] Specifically, the heat-insulating cover 6 can be separated from the connecting protruding ring 8 .

[0028] Specifically, the low-temperature time can be prolonged by the heat-insulating cover 6 , and the shredding operation can be performed through the opening 7 , or the heat-insulating cover 6 can be directly disassembled for shredding operation.

[0029] like Figures 1 to 4 As shown, before use, the heat-insulating shell 1 is removed, and the freezing shell 2 is placed in a refrigeration device such as a refrigerator. After the refrigerant 5 in the freezing shell 2 is frozen, it is taken out and the heat-insulating shell 1 is put back on after being taken out. Then, the tissue is placed in the placement groove 3 of the freezing shell 2 through the opening 7 on the heat-insulating cover 6. When the tissue is cut into pieces, the scissors pass through the opening 7 on the heat-insulating cover 6 and are inserted into the operating cavity to cut the tissue into pieces. The low-temperature container can provide a low-temperature environment for tissue cutting, and the completely transparent container can enable the operator to clearly and intuitively understand the cutting situation of the tissue in the container placement groove 3, thereby ensuring the effectiveness of the cutting operation.

[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A handheld cryogenic container, characterized in that: The invention comprises a transparent heat-insulating shell and a transparent freezing shell. The heat-insulating shell is wrapped around the outside of the freezing shell. The freezing shell is provided with a placement groove. The inner wall of the placement groove is coated with a transparent heat-conducting layer. The freezing shell is provided with a chamber which is filled with a transparent freezing liquid.

2. The handheld cryogenic container according to claim 1, characterized in that: A transparent heat-insulating cover is rotatably connected to the heat-insulating shell. One side of the heat-insulating cover is open, and an operating cavity is formed between the heat-insulating cover and the end of the freezing shell.

3. The handheld cryogenic container according to claim 2, characterized in that: The freezing shell is provided with a connecting convex ring, the heat-insulating cover is rotatably connected to the connecting convex ring, and the heat-insulating outer shell is detachably connected to the connecting convex ring.

4. The handheld cryogenic container according to claim 3, characterized in that: The heat-insulating shell is provided with an internal threaded hole, the connecting convex ring is provided with an external threaded surface, and the heat-insulating shell is threadedly connected to the connecting convex ring.

5. The handheld cryogenic container according to claim 3, wherein: The connecting convex ring is provided with a first convex ring and a first ring groove, and the heat-insulating cover is provided with a second ring groove corresponding to the first convex ring and a second convex ring corresponding to the first ring groove.

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