Transfer box for frozen tissue blocks

Abstract

The invention discloses a frozen tissue block transfer box, and relates to the technical field of tissue sample embedding, the frozen tissue block transfer box comprises a box body, a lower containing cavity located in the box body, a storage disc embedded in the lower containing cavity, an upper containing cavity located in the box body, a dry ice storage area on one side of the storage disc, an ethanol storage area and an embedding treatment area on the other side of the storage disc, and a lower containing cavity located in the box body, the upper containing cavity is located above the lower containing cavity, a dry ice pushing channel with an opening in one end is arranged at the position, above the dry ice storage area, of one side of the upper containing cavity, the dry ice pushing channel communicates with the ethanol storage area through the opening, the dry ice pushing mechanism is movably installed in the dry ice pushing channel, and a channel cover plate is hinged to the top of the dry ice pushing channel. The multiple storage areas are arranged on the storage disc, cooling media can be managed in a partitioned mode, meanwhile, dry ice can be pushed to the ethyl alcohol storage areas through the dry ice pushing mechanism according to needs, the dry ice is mixed with ethyl alcohol to generate a more lasting low-temperature environment, and therefore temperature fluctuation is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tissue sample embedding, in particular to a transport box for frozen tissue blocks. Background Art

[0002] Frozen section technology is a method widely used in medical pathology diagnosis. Its characteristic is that it can quickly cool tissue samples to a certain hardness under low temperature conditions, and then perform precise slicing. Frozen sections have the significant advantages of quick and simple preparation process, so they are particularly suitable for rapid pathological diagnosis during surgery, and can provide doctors with timely and accurate diagnostic basis. In the implementation of frozen section technology, the transportation and preservation of tissue samples is a crucial link. In order to ensure that tissue samples maintain their original morphological structure and biological activity during transportation, special transportation tools are required for protection. Among them, the transportation box for frozen tissue blocks is a transportation tool designed specifically for frozen section technology.

[0003] The patent publication number of the existing patent application is: CN217442974U, and the publication date is September 16, 2022. The name of the patent is "A pathological tissue wax block embedding and transfer device". The patent includes a heat-insulating box body for storing pathological tissue wax blocks, the box body has a heat-insulating upper cover, a storage cavity is provided in the box body, the storage cavity is made of heat-conducting material, the inner surface of the storage cavity is a smooth inner surface, and a freezing cavity is provided between the storage cavity and the bottom surface of the box body, and the freezing cavity is provided with a movable refrigerant. When embedding the pathological tissue wax block, the cold air of the refrigerant in the freezing cavity is quickly conducted to the storage cavity, and the pathological tissue wax block in the storage cavity can be quickly solidified to achieve the purpose of embedding. At the same time, the smooth inner surface facilitates the demolding of the pathological tissue wax block; after the embedding is completed, since the entire box body and the upper cover are made of heat-insulating materials, it is convenient to maintain the low temperature state in the box body, so as to further implement the transportation and transfer work.

[0004] The above application has shortcomings. In the actual application of frozen section technology, traditional transport boxes can often only simply provide a low-temperature environment, but lack effective management and utilization of cooling media such as dry ice and ethanol, resulting in tissue samples being damaged due to temperature fluctuations during transportation. In addition, traditional transport boxes often lack flexibility in design and cannot perform targeted cooling treatment according to the specific needs of tissue samples. Summary of the invention

[0005] The object of the present invention is to provide a transport box for frozen tissue blocks to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A transport box for frozen tissue blocks comprises a box body and a lower accommodating chamber located inside the box body, a storage tray being embedded in the lower accommodating chamber, one side of the storage tray being a dry ice storage area, and the other side being an ethanol storage area and an embedding treatment area, an upper accommodating chamber being located above the lower accommodating chamber, a dry ice pushing channel with an opening at one end being provided on one side of the upper accommodating chamber above the dry ice storage area, and the dry ice pushing channel is connected to the ethanol storage area through the opening, a dry ice pushing mechanism being movably installed in the dry ice pushing channel, a channel cover being hinged on the top of the dry ice pushing channel, a limit abutment being installed on the bottom surface of the channel cover for abutting and cooperating with the dry ice pushing mechanism, and when the pushing end of the dry ice pushing mechanism is at the opening of the dry ice pushing channel, the limit abutment is engaged with the dry ice pushing mechanism to close the ethanol storage area.

[0008] Preferably, an electronic thermometer is installed on the top of the embedding treatment area, the back of the electronic thermometer is in contact with the outer wall of the upper accommodating cavity, and the bottom is in contact with the embedding treatment area.

[0009] Preferably, the dry ice pushing mechanism includes a push rod movably inserted at one side of the upper accommodating chamber, one end of the push rod is fixedly connected to a sealing push plate in the dry ice pushing channel, and the other end of the push rod is installed with a handle.

[0010] Preferably, the limit abutment member comprises a sleeve fixed to the bottom surface of the channel cover plate, the bottom of the sleeve is elastically connected to a limit abutment rod, and the push rod is provided with an arc groove matched with the limit abutment rod.

[0011] Preferably, a sealing cover plate is fixedly connected to the top of the ethanol storage area, an ethanol delivery port is provided on the sealing cover plate, a sealing plug is installed in the ethanol delivery port, and a safety exhaust valve is provided at the back of the ethanol storage area.

[0012] Preferably, a receiving groove is provided in the sealing cover plate, an elastic connector is installed in the receiving groove, a gas hose is installed between the sleeve and the receiving groove, and an annular slot matching the elastic connector is provided on the outer peripheral surface of the sealing plug.

[0013] Preferably, a first end cover connected to the sleeve is installed on the top of the channel cover plate, a second end cover connected to the accommodating groove is installed on the top of the sealing cover plate, and both ends of the gas delivery hose are respectively connected to the first end cover and the second end cover.

[0014] Preferably, a pair of placement grooves are provided in the embedding treatment area, embedding boxes are installed in the placement grooves, and transparent cover plates are embedded on the tops of the placement grooves.

[0015] Preferably, the handle is rotatably connected to the push rod, and a torsion spring is installed between the two. One side of the channel cover is rotatably connected to a limit block, and one end of the handle abuts against the limit block and is provided with a slot matching therewith.

[0016] Preferably, a heat-insulating cover is hinged on the top of the dry ice storage area, and a locking assembly is elastically slidably mounted on one side of the box body, and the locking assembly is respectively abutted and matched with the other end of the handle and the heat-insulating cover.

[0017] In the above technical solution, by arranging multiple storage areas on the storage disk, the cooling medium can be managed in partitions. At the same time, the dry ice can be pushed to the ethanol storage area as needed through the dry ice pushing mechanism, and mixed with ethanol to produce a more lasting low-temperature environment, thereby effectively reducing temperature fluctuations. When the pushing end of the dry ice pushing mechanism pushes the dry ice in the dry ice pushing channel completely into the ethanol storage area, it will be located at the opening of the dry ice pushing channel. At this time, the limit abutment is engaged with the dry ice pushing mechanism to completely seal the ethanol storage area. Such a design not only ensures that the low temperature generated by the dry ice and ethanol mixture can be specifically transmitted to the embedding treatment area, but also improves the sealing and thermal insulation performance of the transfer box, making the transfer box more flexible and convenient to use.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a transport box for frozen tissue blocks of the present invention;

[0022] Figure 2 It is a rear view of a transport box for frozen tissue blocks of the present invention;

[0023] Figure 3 It is a partial structural cross-sectional view of a transport box for frozen tissue blocks of the present invention;

[0024] Figure 4 for Figure 3 A magnified view of the structure at A;

[0025] Figure 5 It is a structural schematic diagram of a box body and a storage tray in a transport box for frozen tissue blocks of the present invention;

[0026] Figure 6 It is a cross-sectional view of a sealing cover plate in a transport box for frozen tissue blocks of the present invention;

[0027] Figure 7 The present invention is a schematic structural diagram of a locking assembly in a transport box for frozen tissue blocks.

[0028] Description of reference numerals:

[0029] 1. Box body; 101. Lower accommodating chamber; 102. Upper accommodating chamber; 2. Storage tray; 201. Dry ice storage area; 202. Ethanol storage area; 203. Embedding treatment area; 204. Placement slot; 205. Embedding box; 206. Transparent cover; 3. Dry ice push channel; 301. Channel cover; 302. First end cover; 303. Limit block; 304. Limit rod; 4. Dry ice push mechanism; 401. Push rod; 402. Sealing push plate; 403. Handle; 404. Arc groove; 405. Torsion spring ; 406, card slot; 5, limit abutment; 501, sleeve; 502, limit abutment rod; 6, electronic thermometer; 7, sealing cover; 701, ethanol delivery port; 702, sealing plug; 703, receiving groove; 704, elastic connector; 705, annular slot; 706, second end cover; 8, safety exhaust valve; 9, gas hose; 11, thermal insulation cover; 1101, card block; 12, locking assembly; 1201, card frame; 1202, top spring; 1203, protrusion; 1204, hook. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] See also Figure 1-7A transport box for frozen tissue blocks provided by an embodiment of the present invention comprises a box body 1, and also comprises a lower accommodating chamber 101, which is located inside the box body 1, a storage tray 2 is embedded in the lower accommodating chamber 101, one side of the storage tray 2 is a dry ice storage area 201, and the other side is an ethanol storage area 202 and an embedding treatment area 203, an upper accommodating chamber 102, which is located above the lower accommodating chamber 101, and one side of the upper accommodating chamber 102 is provided with a dry ice pushing channel 3 with an opening at one end above the dry ice storage area, and the dry ice pushing channel 3 is connected with the ethanol storage area 202 through the opening, a dry ice pushing mechanism 4 is movably installed in the dry ice pushing channel 3, a channel cover plate 301 is hinged on the top of the dry ice pushing channel 3, and a limit abutment member 5 abutting and cooperating with the dry ice pushing mechanism 4 is installed on the bottom surface of the channel cover plate 301, when the pushing end of the dry ice pushing mechanism 4 is at the opening of the dry ice pushing channel 3, the limit abutment member 5 is engaged with the dry ice pushing mechanism 4 to close the ethanol storage area 202.

[0032] Specifically, the box body 1 is the main structure of the entire transport box, and is hollow inside. The box body 1 is made of plastic foam rubber silicone insulation material, which effectively maintains the temperature inside the box to ensure that the low temperature environment inside the box body 1 can be maintained during the transport process. A lower accommodating chamber 101 is provided inside the box body 1 for accommodating and separating different cooling media and tissue samples. A detachable storage tray 2 is embedded in the lower accommodating chamber 101. The storage tray 2 is a tissue block mold plate made of aluminum alloy, which is used to place molds that have been added with OCT, tissue blocks and embedded parts. One side of the storage tray 2 is designed as a dry ice storage area 201 for storing dry ice to provide a continuous low temperature environment, and the other side is divided into an ethanol storage area 202 and an embedding treatment area 203. The ethanol storage area 202 is used to store ethanol solution, and the embedding treatment area 203 is used to embed tissue samples. The upper accommodating chamber 102 above the box body 1, on one side of the upper accommodating chamber 102, above the dry ice storage area 201 is an opening at one end. The dry ice pushing channel 3 is connected with the ethanol storage area 202 through the opening, so that the dry ice can be pushed into the ethanol storage area 202 through the relatively closed dry ice pushing channel 3. A dry ice pushing mechanism 4 is installed in the dry ice pushing channel 3. This mechanism allows the user to push the dry ice into the ethanol storage area 202 without contacting the dry ice, so that the two are mixed. The channel cover 301 at the top of the dry ice pushing channel 3 can cover and close the dry ice pushing channel 3. The channel can be covered and closed without adding dry ice to the dry ice pushing channel 3 to keep the cleanliness and low temperature environment inside the channel. At the same time, when the pushing end of the dry ice pushing mechanism 4 is at the opening of the dry ice pushing channel 3, the limiting abutment 5 will be engaged with the dry ice pushing mechanism 4, thereby stably separating the ethanol storage area 202 and the dry ice pushing channel 3, ensuring that the low temperature generated by the dry ice ethanol mixture can be specifically transferred to the embedding treatment area 203.

[0033] Compared with the prior art, the embodiment of the present invention can manage the cooling medium in partitions by setting multiple storage areas on the storage disk 2. At the same time, the dry ice can be pushed to the ethanol storage area 202 as needed through the dry ice pushing mechanism 4, and mixed with ethanol to produce a more lasting low-temperature environment, thereby effectively reducing temperature fluctuations. When the pushing end of the dry ice pushing mechanism 4 pushes the dry ice in the dry ice pushing channel 3 completely into the ethanol storage area 202, it will be located at the opening of the dry ice pushing channel 3. At this time, the limit abutment 5 is engaged with the dry ice pushing mechanism 4 to completely seal the ethanol storage area 202. Such a design not only ensures that the low temperature generated by the dry ice and ethanol mixture can be specifically transmitted to the embedding treatment area 203, but also improves the sealing and thermal insulation performance of the transfer box, making the transfer box more flexible and convenient to use.

[0034] In a further embodiment of the present invention, an electronic thermometer 6 is installed on the top of the embedding treatment area 203, the back of the electronic thermometer 6 is in contact with the outer wall of the upper accommodating chamber 102, and the bottom is in contact with the embedding treatment area 203. Specifically, the display screen of the electronic thermometer 6 is tilted, and the electronic thermometer 6 can accurately measure the temperature in the embedding treatment area 203 and display the data in real time, so that the user can check the temperature of the embedding treatment area 203 at any time. At the same time, the electronic thermometer 6 can also be connected to an external control system to realize remote monitoring of the temperature.

[0035] In a further embodiment of the present invention, the dry ice pushing mechanism 4 includes a push rod 401 movably inserted at one side of the upper accommodating chamber 102, one end of the push rod 401 is fixedly connected to a sealing push plate 402 in the dry ice pushing channel 3, and the other end of the push rod 401 is installed with a handle 403. Specifically, the size and shape of the sealing push plate 402 match the interior and opening of the dry ice pushing channel 3 to ensure that the channel can be effectively sealed when pushing dry ice, and that the dry ice in the dry ice pushing channel 3 can be pushed to the corresponding position. When adding dry ice into the embedding treatment area 203, one only needs to hold the handle 403 and gently push the push rod 401, and the push rod 401 will smoothly move forward along the guide structure of the upper accommodating chamber 102 and the dry ice pushing channel 3. Driven by the push rod 401, the sealing push plate 402 will fit tightly against the inner wall of the dry ice pushing channel 3, and gradually push the dry ice into the embedding treatment area 203. In this way, the user can add dry ice to the embedding treatment area 203 at any time as needed to maintain the low temperature environment inside it and ensure the quality and safety of the tissue samples.

[0036] In a further embodiment of the present invention, the limiting abutment member 5 includes a sleeve 501 fixed to the bottom surface of the channel cover plate 301, the bottom of the sleeve 501 is elastically connected to the limiting abutment rod 502, and the push rod 401 is provided with an arc groove 404 adapted to the limiting abutment rod 502. Specifically, the sleeve 501 and the limiting abutment rod 502 are connected by an elastic element. Under the action of the elastic force, the bottom of the limiting abutment rod 502 is always pressed against the push rod 401, but its pressing force is not enough to limit the push rod 401 from pushing and pulling. When the push rod 401 is pushed to allow the sealing push plate 402 at its end to reach the opening of the dry ice pushing channel 3, the push rod The arc groove 404 on 401 is just below the limit push rod 502, and the limit push rod 502 will automatically insert into the arc groove 404, thereby locking the entire dry ice pushing mechanism 4, and completely sealing the ethanol storage area 202 through the sealing push plate 402, while preventing the dry ice pushing mechanism 4 from shaking back and forth during the transportation process, causing the ethanol solution to flow into the dry ice pushing channel 3. The user can also judge whether the push rod 401 has moved to the expected position by sensing the coordination state between the limit push rod 502 and the push rod 401, thereby ensuring the accurate pushing of the dry ice and the sealing of the entire transportation box.

[0037] In a further embodiment of the present invention, a sealing cover plate 7 is fixedly connected to the top of the ethanol storage area 202, and an ethanol delivery port 701 is provided on the sealing cover plate 7. A sealing plug 702 is installed in the ethanol delivery port 701, and a safety exhaust valve 8 is provided on the back of the ethanol storage area 202. Specifically, the sealing plug 702 can fit tightly on the ethanol delivery port 701 to prevent ethanol from volatilizing or external air from entering. The user can open the sealing plug 702 to add an appropriate amount of ethanol to the ethanol storage area 202. After adding, the sealing plug 702 is tightly plugged back into the ethanol delivery port 701 to ensure the sealing of the ethanol storage area 202. During the storage and transportation of ethanol, if gas is generated inside the ethanol storage area 202 for various reasons, resulting in an increase in internal pressure, the safety exhaust valve 8 will automatically open to release the internal gas to ensure that the ethanol storage area 202 will not be dangerous due to excessive pressure. Such a design not only improves the safety performance of the transfer box, but also ensures the stability and reliability of ethanol during storage and transportation.

[0038] In a further embodiment of the present invention, a receiving groove 703 is provided in the sealing cover plate 7, an elastic connector 704 is installed in the receiving groove 703, a gas hose 9 is installed between the sleeve 501 and the receiving groove 703, and an annular slot 705 matching the elastic connector 704 is provided on the outer peripheral surface of the sealing plug 702. The elastic connector 704 includes a tension spring fixed to the inner wall of the receiving groove 703, and one end of the tension spring is fixedly connected to a plug rod inserted into the annular slot 705. Specifically, one end of the tension spring is fixed to the inner wall of the receiving groove 703, and the other end is connected to the plug rod. When the insertion rod is not acted upon by an external force, the tension of the tension spring will cause the entire pull rod to retract into the receiving groove 703. When the channel cover 301 is closed, the limit push rod 502 is pressed and blocked by the push rod 401, so that the gas in the sleeve 501 is delivered to the receiving groove 703 through the gas hose 9. The gas entering the receiving groove 703 will push the insertion rod outward, allowing the insertion rod to be inserted into the annular slot 705. In other words, when the channel cover 301 is closed, if the limit push rod 502 is pressed by the push rod 401, the sealing plug 70 2 cannot be opened, and the channel cover 301 is closed, but when the limiting push rod 502 is inserted into the arc groove 404 on the insertion rod, the internal capacity of the sleeve 501 becomes larger, which will cause the tension spring to pull the insertion rod back, so that the sealing plug 702 can be opened. This design can ensure that when the channel cover 301 is closed, the sealing plug 702 can only be removed when the sealing push plate 402 is at the opening of the dry ice pushing channel 3, thereby preventing the ethanol solution from splashing into the dry ice pushing channel 3 when it is injected from the ethanol injection port 701, thereby avoiding the waste of cooling medium.

[0039] In a further embodiment of the present invention, a first end cover 302 connected to the sleeve 501 is installed on the top of the channel cover plate 301, and a second end cover 706 connected to the receiving groove 703 is installed on the top of the sealing cover plate 7. The two ends of the gas hose 9 are respectively connected to the first end cover 302 and the second end cover 706. Specifically, the first end cover 302 provides an interface connected to the interior of the sleeve 501, so that the gas can flow out or flow in smoothly between the sleeve 501 and the gas hose 9. The second end cover 706 is also designed to provide an interface connected to the interior of the receiving groove 703, so that the gas can flow out or flow in smoothly between the receiving groove 703 and the gas hose 9. The two end covers are directly arranged above the channel cover plate 301 and the sealing cover plate 7, which is convenient for subsequent inspection and maintenance, and can also promptly detect whether there is a gas leak.

[0040] In a further embodiment of the present invention, a pair of placement slots 204 are provided in the embedding processing area 203, and an embedding box 205 is installed in the placement slots 204. A transparent cover plate 206 is embedded on the top of the placement slots 204, and the transparent cover plate 206 is a plexiglass box cover. Specifically, the user can place the embedding box 205 in the placement slots 204 and cover it with the transparent cover plate 206. During the embedding processing, the transparent cover plate 206 not only protects the inside of the placement slots 204 from contamination, but also allows the user to directly observe the embedding state of the sample inside the embedding box 205, which not only improves the efficiency and accuracy of the embedding processing, but also enables the user to more conveniently monitor and manage the embedding process of the sample.

[0041] In a further embodiment of the present invention, the handle 403 is rotatably connected to the push rod 401, and a torsion spring 405 is installed between the two. One side of the channel cover 301 is rotatably connected to the limit block 303, and one side of the channel cover 301 is fixed to the limit rod 304 in the clockwise direction of the limit block 303. One end of the handle 403 abuts against the limit block 303 and is provided with a matching card groove 406. Specifically, when the push rod 401 is completely pushed into the dry ice pushing channel 3, the inner side of the handle 403 contacts the outer wall of the box body 1. At this time, the handle 403 can be rotated clockwise to move the handle 403 alone, and the upper end of the handle 403 will push open the limit block 3. 03. After the limit block 303 is reset under the action of gravity, release the handle 403, let the handle 403 press against the limit block 303, and let the limit block 303 be inserted into the card slot 406. Since the limit rod 304 blocks the limit block 303 from the other side, the torsion spring 405 can apply a reverse force to the handle 403, so the handle 403 can be firmly fixed to the limit block 303 to avoid accidental opening of the channel cover 301 during transportation. When the channel cover 301 needs to be opened to add dry ice, it is only necessary to continue to turn the handle 403 clockwise to separate the handle 403 and the limit block 303. The operation is convenient and flexible.

[0042] In a further embodiment of the present invention, a heat preservation cover 11 is hingedly connected to the top of the dry ice storage area, and a locking assembly 12 is elastically slidably installed on one side of the box body 1. The locking assembly 12 is respectively abutted against the other end of the handle 403 and the heat preservation cover 11. The locking assembly 12 includes a clamping frame 1201 slidably installed on the side of the box body 1, one side of the clamping frame 1201 is horizontally slidably connected to the box body 1, and a top spring 1202 is installed between the clamping frame 1201 and the box body 1, one end of the clamping frame 1201 is fixedly connected to a protrusion 1203 abutting against the handle 403, one side of the heat preservation cover 11 is fixedly connected to a clamping block 1101, and the other end of the clamping frame 1201 is fixedly connected to The hook 1204 that is engaged with the card block 1101 is specifically made of thermal insulation material, which effectively reduces heat exchange. When the handle 403 is twisted to make one end of the handle 403 abut against the limit block 303, the other end of the handle 403 will push the protrusion 1203 on the card frame 1201, forcing the entire card frame 1201 to translate. When the handle 403 and the limit block 303 abut against each other, the hook 1204 on the bracket will also be stuck on the card block 1101, and the channel cover 301 and the thermal insulation cover 11 can be locked at the same time by rotating the handle 403. The operation is convenient and quick, and the sealing performance of the entire transfer box during transportation is guaranteed.

[0043] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A transport box for frozen tissue blocks, comprising a box body (1), characterized in that: Also includes: A lower accommodating chamber (101) is located inside the box body (1), a storage tray (2) is embedded in the lower accommodating chamber (101), one side of the storage tray (2) is a dry ice storage area (201), and the other side is an ethanol storage area (202) and an embedding treatment area (203); An upper accommodating chamber (102) is located above the lower accommodating chamber (101), and a dry ice pushing passage (3) with an opening at one end is provided on one side of the upper accommodating chamber (102) above the dry ice storage area (201), and the dry ice pushing passage (3) is connected to the ethanol storage area (202) through the opening; A dry ice pushing mechanism (4) is movably installed in the dry ice pushing channel (3), the top of the dry ice pushing channel (3) is hinged with a channel cover plate (301), and the bottom surface of the channel cover plate (301) is installed with a limit abutment member (5) that abuts and cooperates with the dry ice pushing mechanism (4); When the pushing end of the dry ice pushing mechanism (4) is at the opening of the dry ice pushing channel (3), the position-limiting abutment component (5) is engaged with the dry ice pushing mechanism (4) to close the ethanol storage area (202).

2. A transport box for frozen tissue blocks according to claim 1, characterized in that: An electronic thermometer (6) is installed on the top of the embedding treatment area (203); the back of the electronic thermometer (6) is in contact with the outer wall of the upper accommodating cavity (102), and the bottom is in contact with the embedding treatment area (203).

3. A transport box for frozen tissue blocks according to claim 1, characterized in that: The dry ice pushing mechanism (4) comprises a push rod (401) movably inserted into one side of the upper accommodating chamber (102), one end of the push rod (401) being fixedly connected to a sealing push plate (402) in the dry ice pushing channel (3), and the other end of the push rod (401) being provided with a handle (403).

4. A transport box for frozen tissue blocks according to claim 3, characterized in that: The position-limiting abutment member (5) comprises a sleeve (501) fixed to the bottom surface of the channel cover plate (301), the bottom of the sleeve (501) is elastically connected to a position-limiting abutment rod (502), and the push rod (401) is provided with an arc-shaped groove (404) adapted to the position-limiting abutment rod (502).

5. A transport box for frozen tissue blocks according to claim 4, characterized in that: A sealing cover plate (7) is fixedly connected to the top of the ethanol storage area (202), an ethanol delivery port (701) is provided on the sealing cover plate (7), a sealing plug (702) is installed in the ethanol delivery port (701), and a safety exhaust valve (8) is provided on the back of the ethanol storage area (202).

6. A transport box for frozen tissue blocks according to claim 5, characterized in that: The sealing cover plate (7) is provided with a receiving groove (703), an elastic connector (704) is installed in the receiving groove (703), a gas hose (9) is installed between the sleeve (501) and the receiving groove (703), and an annular slot (705) matching the elastic connector (704) is provided on the outer peripheral surface of the sealing plug (702).

7. A transport box for frozen tissue blocks according to claim 6, characterized in that: A first end cover (302) connected to the sleeve (501) is installed on the top of the channel cover plate (301), a second end cover (706) connected to the receiving groove (703) is installed on the top of the sealing cover plate (7), and both ends of the gas delivery hose (9) are respectively connected to the first end cover (302) and the second end cover (706).

8. A transport box for frozen tissue blocks according to claim 1, characterized in that: A pair of placement grooves (204) are provided in the embedding treatment area (203), embedding boxes (205) are installed in the placement grooves (204), and a transparent cover plate (206) is embedded on the top of the placement grooves (204).

9. A transport box for frozen tissue blocks according to claim 7, characterized in that: The handle (403) is rotatably connected to the push rod (401), and a torsion spring (405) is installed between the two. One side of the channel cover plate (301) is rotatably connected to the limit block (303), and one end of the handle (403) is abutted against the limit block (303) and is provided with a slot (406) matching the limit block.

10. A transport box for frozen tissue blocks according to claim 9, characterized in that: The top of the dry ice storage area (201) is hinged with a heat-insulating cover plate (11), and one side of the box body (1) is elastically slidably mounted with a locking assembly (12), and the locking assembly (12) is respectively abutted against the other end of the handle (403) and the heat-insulating cover plate (11).

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