Biopsy specimen cryopreservation device

Abstract

The invention discloses a biopsy specimen cryopreservation device, and relates to the technical field of biopsy specimen cryopreservation, the biopsy specimen cryopreservation device comprises a refrigeration box body and a cryopreservation box body, a refrigerator used for producing cold air is arranged in the refrigeration box body, the cryopreservation box body is arranged above the refrigeration box body, an air inlet hole is formed in a bottom plate in the cryopreservation box body, and an air outlet hole is formed in the bottom plate in the cryopreservation box body. The refrigerator conveys cold air into the cryopreservation box body through the air inlet hole; a plurality of specimen placing racks for placing specimen test tubes are mounted in the cryopreservation box body, and a plurality of specimen test tubes can be placed in each specimen placing rack; a closed structure is arranged on the upper portion of the cryopreservation box body, the closed structure is located on the upper portions of the multiple specimen containing frames, and the closed structure is located in the top cover body; a top cover body is arranged above the cryopreservation box body, one side of the top cover body is rotationally connected with the cryopreservation box body, and the problem that a biopsy specimen cryopreservation device used in the prior art is inconvenient to transport is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of biopsy specimen cryopreservation, and in particular to a biopsy specimen cryopreservation device. Background Art

[0002] Pathology biopsy specimen cryopreservation devices are mainly used in hospital pathology departments, scientific research institutions, biopharmaceutical companies and other places to preserve various pathology biopsy specimens, such as tissue sections, cell samples, blood samples, etc. These specimens are of great value for the diagnosis, treatment and research of diseases, so they need to be preserved at a specific temperature to ensure their biological activity and the stability of tissue morphology.

[0003] In the prior art, most hospitals generally use freezers to freeze biopsy specimens. This method can only be used within the hospital and is inconvenient to transfer or transport biopsy specimens. Therefore, in the prior art, a variety of transportation devices that can freeze biopsy specimens are designed for the transportation of biopsy specimens. For example, application number CN202311417652.0 discloses a biopsy specimen freezing device, and application number CN202210243976.6 discloses a biopsy specimen freezing device. In the above applications, biopsy specimens can be frozen and transported, but in the use of It is very inconvenient to store biopsy specimens. Each time they are placed or taken, it is necessary to open the external sealing device and then open the internal sealing device, which is very cumbersome. Although this has a better protective effect on the biopsy specimens, during the transportation of the biopsy specimens, a corresponding protective structure will be added to the outside of the freezing device to prevent the biopsy specimens from being damaged by shaking or collision during transportation. Therefore, the freezing device itself only needs to ensure its desired freezing effect. Therefore, the transportation device for biopsy specimens in the above application is very inconvenient to use and needs to be improved. Summary of the invention

[0004] The embodiment of the present invention provides a biopsy specimen freezing device to solve the problems in the background technology.

[0005] The embodiment of the present invention adopts the following technical scheme: a biopsy specimen freezing device, comprising a refrigerating box and a freezing box, wherein a refrigerator for producing cold air is arranged in the refrigerating box, the freezing box is arranged above the refrigerating box, an air inlet hole is arranged on the bottom plate inside the freezing box, and the refrigerator delivers cold air into the freezing box through the air inlet hole; a plurality of specimen placement racks for placing specimen test tubes are installed in the freezing box, each of the specimen placement racks can place a plurality of specimen test tubes, and the specimen test tubes can be placed in the freezing box through the specimen placement racks; a closing structure is arranged above the freezing box, the closing structure is located above the plurality of specimen placement racks, and the closing structure is located in the top cover, the specimen test tubes in the plurality of specimen placement racks can be closed in the freezing box through the closing mechanism, and the cold air in the freezing box can be closed in the freezing box through the closing structure; a top cover is arranged above the freezing box, and one side of the top cover is rotatably connected to the freezing box. The invention solves the problem that the biopsy specimen freezing storage device used in the prior art is inconvenient to transport.

[0006] Furthermore, mounting racks are symmetrically provided on both sides of the freezing box, and each mounting rack is provided with a plurality of mounting slots distributed at intervals, and the mounting slots provided on the two mounting racks are symmetrically distributed. The mounting racks provided in the freezing box are mainly used to place the specimen placement racks, and the specimen placement racks are in a movable placement state in the two mounting racks, and can be taken out of the mounting racks by sliding.

[0007] Furthermore, a plurality of placement holes are arranged at intervals on the top of each specimen placement rack, a bottom support plate is arranged below each specimen placement rack, and each bottom support plate is slidably installed in the corresponding specimen placement rack. The specimen test tube can enter the specimen placement rack through the placement hole arranged at the top of the specimen placement rack, and the bottom support plate is used to provide support for the specimen test tube.

[0008] Furthermore, each bottom support plate is provided with a plurality of placement slots distributed at intervals, and each placement slot corresponds vertically to a placement hole. Providing placement slots on the bottom support plate can increase the stability of the bottom end of the specimen test tube when it is located in the placement slot on the bottom support plate.

[0009] Furthermore, each of the specimen placement racks has symmetrically disposed drive placement slots on both sides, each of the drive placement slots has a limit rod, the two sides of the bottom support plate are respectively located in the two drive placement slots, and the two sides of the bottom support plate are slidably mounted on the two limit rods. Providing the limit rods and drive placement slots for limiting the bottom support plate in the specimen placement rack can make the movement of the bottom support plate in the specimen placement rack more stable.

[0010] Furthermore, a sliding support rod is provided in one of the driving placement slots in the specimen placement rack, and a grabbing end is provided at the top of the sliding support rod, and the grabbing end is located above the specimen placement rack; a threaded rod is provided in another driving placement slot in the specimen placement rack, and the threaded rod is threadedly connected to one side of the bottom support plate, and a rotating end is provided at the top of the threaded rod, and the rotating end is located above the specimen placement rack. The rotating end can make the threaded rod rotate in the specimen placement rack, and when the bottom support plate moves upward, the specimen test tube can move upward in the specimen placement rack, which can facilitate medical staff to take the specimen test tube, and the grabbing end provided at the top of the sliding support rod can facilitate medical staff to grab through the cooperation of the rotating end.

[0011] Furthermore, the closed structure is composed of a fixing frame and a plurality of closed films. The fixing frame is detachably mounted above the freezing box, and the two can be connected by bolt fixing or slot plugging. The fixing frame is provided with a plurality of groups of discharge holes, each group of discharge holes is composed of a row of a plurality of discharge holes distributed at intervals, each group of discharge holes is located above a specimen placement rack, each group of discharge holes is vertically corresponding to a plurality of discharge holes provided on a corresponding specimen placement rack, and a closed film is inserted into each of the discharge holes, and each of the closed films is used to close a group of discharge holes on the fixing frame. The fixing frame is located above a plurality of specimen placement racks on the freezing box, so that the fixing frame can fix the plurality of specimen placement racks in the freezing box, and the closed film is used to close the discharge holes to prevent the cold air in the freezing box from moving out through the discharge holes.

[0012] Furthermore, a plurality of partitions are provided at the bottom of the interior of the fixing frame, and each of the partitions is located between two specimen placement racks. The interior space of the fixing frame is partitioned, so that the specimen placement racks can be separated when the fixing frame is above the plurality of specimen placement racks.

[0013] Furthermore, each of the closed films is provided with a plurality of tearing ends, and each tearing end of the closed film is located in a discharge hole. When the specimen test tube passes through the closed film through the discharge hole, the tearing end can facilitate the specimen test tube to pass through more easily, thus reducing the obstruction of the closed film to the specimen test tube.

[0014] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0015] First, in the present application, the structure is mainly composed of a refrigeration box, a freezing box, a specimen placement rack and a closed structure. The refrigeration box is mainly used to produce cold air so that the freezing box is filled with an environment that can freeze biopsy specimens. The freezing box is mainly used to place a number of specimen placement racks, and the closed structure is used to seal the freezing box so that the cold air in the freezing box does not flow to the outside. The top cover is used to provide protection. The overall structure is presented as a box. Compared with the biopsy specimen freezing device in the prior art, the present application is relatively light and easy to move. In this way, the problem that the biopsy specimen freezing device used in the prior art is inconvenient to transport is solved.

[0016] Secondly, in the present application, a placement groove is provided on the bottom support plate so that the stability of the bottom end of the specimen test tube can be increased when the bottom end of the specimen test tube is located in the placement groove on the bottom support plate. The bottom end of the placement groove is consistent in shape with the bottom end of the specimen test tube, and the bottom end of the specimen test tube will be restricted by the placement groove in the placement groove. In this way, the upper and lower ends of the specimen test tube will be restricted by the placement hole and the placement groove respectively, so that the specimen test tube can only move up and down in the specimen placement rack, and cannot shake left and right.

[0017] Thirdly, in the present application, a threaded rod is arranged in the specimen rack so that the threaded rod can drive the bottom support plate to move up and down in the specimen rack, and the rotating end can make the threaded rod rotate in the specimen rack. When the bottom support plate moves upward, the specimen test tube can be moved upward in the specimen rack, which makes it convenient for medical staff to take the specimen test tube. The advantage of this is that the specimen test tube itself is a fragile item and can only move up and down in the specimen rack. Therefore, if the specimen test tube is taken upward by medical staff in the specimen rack, it is necessary to ensure the stability during the taking. If the medical staff shakes the hand of the specimen test tube during the taking process in the specimen rack, the friction between the specimen test tube and the specimen rack will not only make it difficult to take the specimen test tube, but if the taking force is too heavy, it may cause the specimen test tube to be damaged during the taking process. Therefore, allowing the bottom support plate to lift the specimen test tube can make it more convenient for medical staff to take the test tube.

[0018] Fourthly, in the present application, the internal space of the fixing rack is partitioned, so that when the fixing rack is above multiple specimen racks, the specimen racks can be separated. For example, when a test tube in one of the specimen racks is taken out, the sealing film is pierced, so it will have a slight effect, causing the cold air in the freezing box to dissipate. Therefore, after separating the multiple specimen racks, the specimen tubes in a single specimen rack will not affect the freezing effect of the specimen tubes in other specimen racks when they are used.

[0019] Fifth, in the present application, the closing film is mainly used to close the discharge holes provided on the fixing frame, and the closing film also needs to facilitate the removal of the specimen test tube from the discharge hole, so a tearing end is provided at each discharge hole on the closing film, so that when the specimen test tube passes through the discharge hole and through the closing film, the tearing end can facilitate the specimen test tube to pass through more conveniently when moving, thereby reducing the obstruction of the closing film to the specimen test tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the top cover in the present invention in an open state;

[0023] Figure 3 This is a schematic diagram of the specimen placement rack in the present invention being located in a freezing box;

[0024] Figure 4 It is a schematic diagram of assembling the specimen placement rack in the freezing box of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the specimen placement rack in the present invention;

[0026] Figure 6 The internal structure of the specimen placement rack in the present invention is shown in FIG. Figure 1 ;

[0027] Figure 7 The internal structure of the specimen placement rack in the present invention is shown in FIG. Figure 2 ;

[0028] Figure 8 A three-dimensional schematic diagram of the closed structure in the present invention Figure 1 ;

[0029] Fig. 9 A three-dimensional schematic diagram of the closed structure in the present invention Figure 2 ;

[0030] Fig.10 It is a three-dimensional schematic diagram of the sealing film in the present invention.

[0031] Figure numerals: refrigeration box 1, freezing box 2, air inlet hole 21, mounting frame 22, mounting slot 23, specimen placement frame 3, placement hole 31, bottom support plate 32, placement slot 33, drive placement slot 34, limit rod 35, sliding support rod 36, grabbing end 371, threaded rod 38, rotating end 381, closing structure 4, fixing frame 41, discharge hole 42, closing film 43, tear end 431, partition 44, top cover 5. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1-Figure 10 The embodiment of the present invention provides a biopsy specimen freezing device, comprising a refrigerating box 1 and a freezing box 2, wherein the refrigerating box 1 is provided with a refrigerator for producing cold air, the freezing box 2 is arranged above the refrigerating box 1, and an air inlet hole 21 is arranged on the bottom plate inside the freezing box 2, and the refrigerator delivers cold air to the freezing box 2 through the air inlet hole 21; a plurality of specimen placing racks 3 for placing specimen test tubes are installed in the freezing box 2, and each of the specimen placing racks 3 can place a plurality of specimen test tubes, and the specimen placing racks 3 can be used to place a plurality of specimen test tubes. The rack 3 can place the specimen tubes in the freezing box 2; a closed structure 4 is provided above the freezing box 2, the closed structure 4 is located above the multiple specimen racks 3, and the closed structure 4 is located in the top cover 5, the specimen tubes in the multiple specimen racks 3 can be closed in the freezing box 2 through the closed mechanism, and the cold air in the freezing box 2 can be closed in the freezing box 2 through the closed structure 4; a top cover 5 is provided above the freezing box 2, and one side of the top cover 5 is rotatably connected to the freezing box 2.

[0035] In the present application, a biopsy specimen freezing box for placing a plurality of specimen test tubes is designed, which is mainly used for the transfer and transportation of biopsy specimens. The structure is mainly composed of a refrigeration box 1, a freezing box 2, a specimen placement rack 3 and a closed structure 4. The refrigeration box 1 is mainly used to produce cold air so that the freezing box 2 is filled with an environment that can freeze the biopsy specimens. The freezing box 2 is mainly used to place a plurality of specimen placement racks 3, and the closed structure 4 is used to seal the freezing box 2 so that the cold air in the freezing box 2 does not flow to the outside. The top cover 5 is used to provide protection. The overall structure is presented as a box. Compared with the biopsy specimen freezing device in the prior art, the present application is relatively light and easy to move. In this way, the problem that the biopsy specimen freezing device used in the prior art is inconvenient to transport is solved.

[0036] Preferably, mounting frames 22 are symmetrically provided on both sides of the freezing box 2, each mounting frame 22 is provided with a plurality of mounting slots 23 distributed at intervals, and the mounting slots 23 provided on the two mounting frames 22 are symmetrically distributed.

[0037] In the present application, a mounting rack 22 is provided in the freezing box 2 and is mainly used for placing a specimen rack 3. A plurality of mounting slots 23 provided in the two mounting racks 22 can place a plurality of specimen racks 3, and the specimen rack 3 is in an active placement state in the two mounting racks 22 and can be taken out from the mounting rack 22 by sliding, so that the specimen rack 3 has high flexibility, and medical staff can place the biopsy specimen in the specimen rack 3 before placing it in the freezing box 2, so that the biopsy specimen can be placed in the specimen rack 3 according to classification before being placed inside the freezing box 2.

[0038] Preferably, a plurality of placement holes 31 distributed at intervals are provided on the top of each specimen placement rack 3 , a bottom support plate 32 is provided below each specimen placement rack 3 , and each bottom support plate 32 is slidably installed in the corresponding specimen placement rack 3 .

[0039] In the present application, the specimen rack 3 is mainly used to place specimen test tubes. The specimen test tubes can enter the specimen rack 3 through the placement hole 31 set at the top of the specimen rack 3. When the specimen test tube is placed in the specimen rack 3 and moves downward, it will be located on the bottom support plate 32. The bottom support plate 32 is used to provide support for the specimen test tube.

[0040] Preferably, each of the bottom support plates 32 is provided with a plurality of placement grooves 33 distributed at intervals, and each of the placement grooves 33 corresponds vertically to a placement hole 31 in the upper and lower directions.

[0041] In the present application, a placement groove 33 is provided on the bottom support plate 32 so that the stability of the bottom end of the specimen test tube when it is located in the placement groove 33 on the bottom support plate 32 can be increased. The bottom end of the placement groove 33 is consistent with the shape of the bottom end of the specimen test tube, and the bottom end of the specimen test tube will be restricted by the placement groove 33 in the placement groove 33. In this way, the upper and lower ends of the specimen test tube will be restricted by the placement hole 31 and the placement groove 33 respectively, so that the specimen test tube can only move up and down in the specimen placement rack 3, and cannot shake left and right.

[0042] Preferably, each of the specimen placement racks 3 is symmetrically provided with drive placement grooves 34 on both sides, each of the drive placement grooves 34 is provided with a limit rod 35, the two sides of the bottom support plate 32 are respectively located in the two drive placement grooves 34, and the two sides of the bottom support plate 32 are slidably mounted on the two limit rods 35.

[0043] In the present application, a limit rod 35 and a driving placement groove 34 for limiting the bottom support plate 32 are set in the specimen placement rack 3 to make the movement of the bottom support plate 32 in the specimen placement rack 3 more stable. The restriction of the bottom support plate 32 by the two limit rods 35 can prevent the bottom support plate 32 from being offset during movement.

[0044] Preferably, a sliding support rod 36 is further provided in one of the driving placement slots 34 in the specimen placement rack 3, and a grabbing end 371 is provided at the top end of the sliding support rod 36, and the grabbing end 371 is located above the specimen placement rack 3; a threaded rod 38 is further provided in another driving placement slot 34 in the specimen placement rack 3, and the threaded rod 38 is threadedly connected to one side of the bottom support plate 32, and a rotating end 381 is provided at the top end of the threaded rod 38, and the rotating end 381 is located above the specimen placement rack 3.

[0045] In the present application, a threaded rod 38 is arranged in the specimen rack 3 so that the threaded rod 38 can drive the bottom support plate 32 to move up and down in the specimen rack 3, and the rotating end 381 can make the threaded rod 38 rotate in the specimen rack 3. When the bottom support plate 32 moves upward, the specimen tube can be moved upward in the specimen rack 3, which can facilitate medical staff to take the specimen tube. The advantage of doing so is that the specimen tube itself is a fragile item and can only move up and down in the specimen rack 3. Therefore, if the specimen tube is taken upward by medical staff in the specimen rack 3, it is necessary to ensure the stability during the taking. If the medical staff shakes their hands during the taking of the specimen tube in the specimen rack 3, the friction between the specimen tube and the specimen rack 3 will not only make it difficult to take the specimen tube, but if the taking force is too heavy, it may cause the specimen tube to be damaged during the taking process. Therefore, allowing the bottom support plate 32 to lift the specimen tube can make it more convenient for medical staff to take the tube.

[0046] The grabbing end 371 provided at the top of the sliding support rod 36 can facilitate the medical staff to grab it through the cooperation of the rotating end 381. Since the top surface of the specimen rack 3 is flush with the top surface of the mounting rack 22 after being placed in the mounting rack 22, it is inconvenient to take out the specimen rack 3 in the mounting rack 22 at this time. At this time, the medical staff can only take the specimen rack 3 out of the mounting rack 22 by grabbing the rotating end 381, and close contact with the rotating end 381 will cause unbalanced force when taking the specimen rack 3. Therefore, the grabbing end 371 is provided above the specimen rack 3, so that the medical staff can grab the grabbing end 371 and the rotating end 381 respectively to take the specimen rack 3 out of the mounting rack 22.

[0047] Preferably, the closed structure 4 is composed of a fixing frame 41 and a plurality of closed films 43. The fixing frame 41 is detachably installed above the freezing box 2, and the two can be connected by bolt fixing or slot plug-in. The fixing frame 41 is provided with a plurality of groups of discharge holes 42, each group of discharge holes 42 is composed of a row of a plurality of spaced-apart discharge holes 42, each group of discharge holes 42 is located above a specimen placement rack 3, each group of discharge holes 42 is vertically corresponding to a plurality of discharge holes 42 provided on a corresponding specimen placement rack 3, a closed film 43 is inserted into each of the discharge holes 42, and each of the closed films 43 is used to close a group of discharge holes 42 on the fixing frame 41.

[0048] In the present application, the fixing rack 41 is located above the multiple specimen racks 3 on the freezing box 2, so that the fixing rack 41 can fix the multiple specimen racks 3 in the freezing box 2, and the multiple specimen racks 3 are put in and taken out of the freezing box 2 before the specimen tubes are put into the freezing box 2 and after all the tubes in the freezing box 2 are taken out. When the specimen rack 3 is in the freezing box 2, the fixing rack 41 fixes the multiple specimen racks 3, which can prevent the specimen rack 3 from shaking up and down in the mounting rack 22. The discharge holes 42 provided on the fixing rack 41 can remove the specimen tubes in the specimen rack 3. When the bottom support plate 32 moves upward, the specimen tubes in the specimen rack 3 will move upward. Move, so that the specimen test tube can pass through the discharge hole 42 provided on the fixing frame 41, and the medical staff can take out the test tube in the specimen placement rack 3 on the fixing frame 41, and the closing film 43 is used to close the discharge hole 42. The closing film 43 is mainly used to block the discharge hole 42 to prevent the cold air in the freezing box 2 from moving out through the discharge hole 42. When the specimen test tube needs to be moved out of the fixing frame 41, it will pass through the closing film 43. The closing film 43 itself is a disposable product and can play a protective role. When the specimen test tube is sealed and transferred to another place for use, the closing film 43 can play an anti-counterfeiting role, which can facilitate others to check whether the closing film 43 is broken or not, and whether the specimen test tube has been moved out.

[0049] Preferably, a plurality of partitions 44 are provided at the bottom end of the fixing frame 41 , and each of the partitions 44 is located between two specimen placement frames 3 .

[0050] In the present application, the internal space of the fixing rack 41 is partitioned, so that when the fixing rack 41 is above multiple specimen racks 3, the specimen racks 3 can be separated. For example, when a test tube in one of the specimen racks 3 is taken out, since the sealing film 43 is pierced, it will have a slight effect, causing the cold air in the freezing box 2 to dissipate. Therefore, after the multiple specimen racks 3 are separated, the specimen test tubes in a single specimen rack 3 will not affect the freezing effect of the specimen test tubes in other specimen racks 3 when they are used.

[0051] Preferably, each of the closed films 43 is provided with a plurality of tear ends 431 , and each tear end 431 on the closed film 43 is located in a discharge hole 42 .

[0052] In the present application, the closing film 43 is mainly used to close the discharge hole 42 provided on the fixing frame 41, and the closing film 43 also needs to facilitate the removal of the specimen tube from the discharge hole 42, so a tearing end 431 is provided at each discharge hole 42 on the closing film 43, so that when the specimen tube passes through the discharge hole 42 and through the closing film 43, the tearing end 431 can make it easier for the specimen tube to pass through, thereby reducing the obstruction of the closing film 43 to the specimen tube.

[0053] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A biopsy specimen freezing device, characterized in that: The invention comprises a refrigerating box (1) and a freezing box (2), wherein a refrigerator for producing cold air is arranged in the refrigerating box (1), the freezing box (2) is arranged above the refrigerating box (1), an air inlet hole (21) is arranged on the bottom plate inside the freezing box (2), and the refrigerator transports cold air into the freezing box (2) through the air inlet hole (21); A plurality of specimen placement racks (3) for placing specimen test tubes are installed in the freezing box (2), and a plurality of specimen test tubes can be placed in each of the specimen placement racks (3), and the specimen test tubes can be placed in the freezing box (2) through the specimen placement racks (3); A sealing structure (4) is provided above the freezing box (2), the sealing structure (4) is located above the plurality of specimen placement racks (3), and the sealing structure (4) is located inside the top cover (5), and the specimen test tubes in the plurality of specimen placement racks (3) can be sealed inside the freezing box (2) through the sealing mechanism, and the cold air in the freezing box (2) can be sealed inside the freezing box (2) through the sealing structure (4); A top cover (5) is arranged above the freezing box (2), and one side of the top cover (5) is rotatably connected to the freezing box (2).

2. A biopsy specimen freezing device according to claim 1, characterized in that: The freezing box (2) has mounting frames (22) symmetrically disposed on both sides thereof, each of the mounting frames (22) having a plurality of mounting slots (23) distributed at intervals, and the mounting slots (23) disposed on the two mounting frames (22) are symmetrically distributed.

3. A biopsy specimen freezing device according to claim 1, characterized in that: A plurality of placement holes (31) distributed at intervals are provided on the top of each specimen placement rack (3), a bottom support plate (32) is provided below each specimen placement rack (3), and each bottom support plate (32) is slidably mounted in the corresponding specimen placement rack (3).

4. A biopsy specimen freezing device according to claim 3, characterized in that: Each of the bottom support plates (32) is provided with a plurality of placement grooves (33) distributed at intervals, and each of the placement grooves (33) corresponds vertically to a placement hole (31) in the upper and lower directions.

5. A biopsy specimen freezing device according to claim 3, characterized in that: Each of the specimen placement racks (3) has symmetrically disposed drive placement slots (34) on both sides, each of the drive placement slots (34) has a limit rod (35) disposed therein, the two sides of the bottom support plate (32) are respectively located in the two drive placement slots (34), and the two sides of the bottom support plate (32) are slidably mounted on the two limit rods (35).

6. A biopsy specimen freezing device according to claim 3, characterized in that: A sliding support rod (36) is also provided in one of the driving placement slots (34) in the specimen placement rack (3), a gripping end (371) is provided at the top end of the sliding support rod (36), and the gripping end (371) is located above the specimen placement rack (3); A threaded rod (38) is also provided in another driving placement slot (34) in the specimen placement rack (3), and the threaded rod (38) is threadedly connected to one side of the bottom support plate (32), and a rotating end (381) is provided at the top end of the threaded rod (38), and the rotating end (381) is located above the specimen placement rack (3).

7. A biopsy specimen freezing device according to claim 1, characterized in that: The closed structure (4) is composed of a fixing frame (41) and a plurality of closed films (43). The fixing frame (41) is detachably mounted above the freezing box (2). The two can be connected by bolt fixing or slot plugging. The fixing frame (41) is provided with a plurality of groups of discharge holes (42). Each group of discharge holes (42) is composed of a row of a plurality of discharge holes (42) distributed at intervals. Each group of discharge holes (42) is located above a specimen placement frame (3). Each group of discharge holes (42) vertically corresponds to a plurality of discharge holes (42) provided on a corresponding specimen placement frame (3). A closed film (43) is inserted into each of the discharge holes (42). Each of the closed films (43) is used to seal a group of discharge holes (42) on the fixing frame (41).

8. A biopsy specimen freezing device according to claim 7, characterized in that: A plurality of partitions (44) are provided at the bottom end of the interior of the fixing frame (41), and each of the partitions (44) is located between two specimen placement frames (3).

9. The biopsy specimen freezing device according to claim 7, characterized in that: Each of the closed films (43) is provided with a plurality of tear ends (431), and each tear end (431) on the closed film (43) is located in a discharge hole (42).

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