Stem cell storage tank convenient to take and place

Abstract

The utility model discloses a stem cell storage tank convenient to take and place in the technical field of stem cell storage, which comprises a storage tank body used for storing stem cells and a placing frame used for placing the stem cells, the storage tank body comprises a belly part used for storing liquid nitrogen and a neck part used for preventing the liquid nitrogen from overflowing, a sealing cover is arranged on the neck part, and the storage tank body is provided with an opening. A supporting frame is arranged on the upper middle portion of the neck part, a plurality of openings separated through partition plates are formed in the supporting frame, two first shafts are arranged at the tops of the openings, first doors are symmetrically arranged on the two first shafts respectively, two second shafts are arranged at the bottoms of the openings, and the two second shafts are connected with the partition plates. The stem cell cryopreservation device solves the problems that existing stem cells are stored in a liquid nitrogen storage tank through a cryopreservation tube, however, the liquid nitrogen tank needs to be opened in the storing and taking process, part of liquid nitrogen escapes from the storage tank due to convection between the liquid nitrogen and the atmosphere in the opening process, and when the escaped liquid nitrogen is too much, the stem cells cannot be stored in the liquid nitrogen storage tank. And workers are easily injured.

Description

TECHNICAL FIELD

[0001] The utility model relates to stem cell storage technical field, and specifically is a stem cell storage tank convenient to take and put. BACKGROUND

[0002] After long-term exploration and efforts, scientists finally focus on stem cells, and life is realized cell renewal and sustained growth through stem cell division, and the research and application of stem cells will make it possible for human beings to realize the dream of perfect repair of damaged tissues and organs. For many years, scientists have been committed to finding a method of using stem cell replication and differentiation to replace damaged cells or tissues. With the development of various biological technologies such as tissue engineering, embryo engineering, cell engineering and genetic engineering, and the breakthrough in the field of stem cell biology research, this point shows an incomparable broad prospect. It has become possible to artificially cultivate and separate stem cells in vitro according to certain purposes, and using stem cells to construct various cells, tissues and organs as transplantation sources will become the main direction of stem cell application.

[0003] The existing stem cells are stored in the liquid nitrogen storage tank through the cryopreservation tube, however, in the process of storage and retrieval, the liquid nitrogen tank is opened, and since the liquid nitrogen will form convection with the atmosphere during the opening process, part of the liquid nitrogen will escape from the storage tank, and when the escaped liquid nitrogen is too much, the workers are easily damaged.

[0004] Therefore, the skilled person in the art provides a stem cell storage tank convenient to take and put to solve the problems raised in the above background. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a stem cell storage tank convenient to take and put to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a stem cell storage tank convenient to take and put, including the storage tank body for storing stem cells and the placing rack for stem cell placement, the body includes the abdomen for storing liquid nitrogen and the neck for avoiding liquid nitrogen overflow, the neck is equipped with the sealing cover, the middle upper portion of the neck is equipped with the support frame, the support frame is equipped with a plurality of openings separated by the partition plate, the top of the opening is equipped with two shafts I, two shafts I are respectively equipped with the door I arranged symmetrically, the bottom of the opening is equipped with two shafts II, two shafts II are respectively equipped with the door II arranged symmetrically, the door I and the door II are not opened simultaneously, the support frame is equipped with the opening and closing assembly for adjusting the opening and closing of the door I and the door II.

[0007] Preferably, the opening and closing assembly comprises a gear one mounted on the shaft one, the support frame is provided with a push plate one and a push plate two, the push plate one is provided with two racks one respectively matched with the gear one, the shaft two is provided with a gear two, and the push plate two is provided with two racks two respectively matched with the gear two.

[0008] Preferably, the placing rack comprises a fixing box for fixing the stem cell cryopreservation tube, and the top of the fixing box is fixedly connected with a connecting rod, and the top end of the connecting rod is bent into a hook shape.

[0009] Preferably, the partition plate is provided with a rack rod for hanging the connecting rod.

[0010] Preferably, the partition plate is provided with a placing groove for overturning the rack rod.

[0011] Preferably, the door one and the door two are respectively provided with a notch for the connecting rod to pass through.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、In the utility model, the support frame is arranged on the neck, a plurality of openings are arranged on the support frame, different placing racks can be placed into the storage tank through different openings, liquid nitrogen overflow during taking and placing the stem cell cryopreservation tube can be avoided, the liquid nitrogen leakage amount can be reduced, and the staff can be prevented from being frozen by liquid nitrogen.

[0014] 2、In the utility model, the door one and the door two are arranged, and the door one and the door two are not opened at the same time, so that the liquid nitrogen in the abdomen can not be directly communicated with the external air, and the liquid nitrogen leakage amount can be further reduced. DRAWINGS

[0015] Figure 1 It is a schematic view of the whole structure of the utility model.

[0016] Figure 2 It is a left side view of the utility model.

[0017] Figure 3 It is a schematic view of the door one and the door two connection structure of the utility model. Figure 2 It is an enlarged view of A in the utility model.

[0018] Figure 4 It is a schematic view of the door one and the door two connection structure of the utility model.

[0019] In the drawing: 1, the body; 2, the abdomen; 3, the neck; 4, the sealing cover; 5, the support frame; 6, the partition plate; 8, the shaft one; 9, the door one; 10, the shaft two; 11, the door two; 12, the gear one; 13, the push plate one; 14, the push plate two; 15, the rack one; 16, the gear two; 17, the rack two; 18, the fixing box; 19, the connecting rod; 20, the rack rod; 21, the placing groove; 22, the notch. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] All the electronic components in the present application are controlled by an external controller.

[0022] Please refer to Figures 1-4 In the embodiments of the present application, a stem cell storage tank convenient to take and place includes a storage tank body 1 for storing stem cells and a placing rack for placing stem cells. The body 1 includes an abdomen 2 for storing liquid nitrogen and a neck 3 for avoiding overflow of the liquid nitrogen. A sealing cover 4 is arranged on the neck 3. A support frame 5 is arranged on the middle upper part of the neck 3. A plurality of openings 7 separated by a partition plate 6 are arranged on the support frame 5. Two shafts I 8 are arranged on the top of the openings 7. Symmetrically arranged doors I 9 are arranged on the two shafts I 8 respectively. Two shafts II 10 are arranged on the bottom of the openings 7. Symmetrically arranged doors II 11 are arranged on the two shafts II 10 respectively. The doors I 9 and the doors II 11 are not opened at the same time. An opening and closing assembly for adjusting the opening and closing of the doors I 9 and the doors II 11 is arranged on the support frame 5. The opening and closing assembly includes a gear I 12 arranged on the shaft I 8. A push plate I 13 and a push plate II 14 are arranged on the support frame 5. Two racks I 15 matched with the gear I 12 are arranged on the push plate I 13 respectively. A gear II 16 is arranged on the shaft II 10. Two racks II 17 matched with the gear II 16 are arranged on the push plate II 14 respectively.

[0023] The body 1 is made of the common stem cell storage tank material on the market, and the placing rack can conveniently place the stem cell cryopreservation tube. The body 1 is composed of the abdomen 2 in the middle lower part and the neck 3 in the middle upper part. The liquid nitrogen is stored in the abdomen 2, and the cryopreservation tube at the bottom of the placing rack is located in the liquid nitrogen. The neck 3 is longer than the existing storage tank. The sealing cover 4 can seal the body 1. The support frame 5 is fixedly connected to the neck 3. The partition plate 6 is located on the support frame 5. The opening 7 is formed between the adjacent two partition plates 6. The placing rack can be placed into the body 1 through the opening 7. The two shafts one 8 are rotatably connected to the middle upper part of the support frame 5 through torsion springs. The two shafts two 10 are rotatably connected to the middle lower part of the support frame 5 through torsion springs. The door one 9 is fixedly connected to the shaft one 8. The door two 11 is fixedly connected to the shaft two 10. The gear one 12 is fixedly connected to one end of the shaft one 8. The two gear ones 12 are located on the same plane. The gear two 16 is fixedly connected to the shaft two 10. The push plate one 13 and the push plate two 14 are arranged in a staggered manner. The two racks one 15 are fixedly connected to the two ends of the push plate one 13. The push plate one 13 can be lifted to drive the two doors one 9 to be opened. The push plate two 14 is fixedly connected to the bottom of the two racks two 17. The push plate two 14 can be lifted to drive the two doors two 11 to be opened. The door one 9 and the door two 11 are not opened at the same time, which can reduce the liquid nitrogen leakage amount in the opening process and can avoid the staff from being frozen by the liquid nitrogen.

[0024] In one embodiment, specifically, the placing rack comprises a fixing box 18 for fixing the stem cell cryopreservation tube. The top of the fixing box 18 is fixedly connected with a connecting rod 19. The top end of the connecting rod 19 is bent into a hook shape. The stem cell cryopreservation tube can be placed on the fixing box 18. The connecting rod 19 is fixed on the fixing box 18. The top of the connecting rod 19 is bent into a hook shape, which can conveniently hang the placing rack and conveniently take and place the stem cell cryopreservation tube.

[0025] Among them, the partition plate 6 is provided with a rack 20 for hanging the connecting rod 19; the partition plate 6 is provided with a placing groove 21 for overturning the rack 20. The rack 20 is in the shape of a “J” character. The placing groove 21 is provided on the clamping plate. The rack 20 can rotate on the partition plate 6. The rack 20 can be placed on the placing groove 21. The placing rack can be hung on the rack 20, which is convenient for placing the stem cell cryopreservation tube.

[0026] On the basis of the above embodiment, specifically, the door one 9 and the door two 11 are respectively provided with a notch 22 for the connecting rod 19 to pass through. The notch 22 can conveniently pass through the connecting rod 19.

[0027] When the stem cells need to be stored, the stem cells are first stored in the cryopreservation tube, then the cryopreservation tube is placed on the fixing box 18, and after the placing is completed, the fixing box 18 with the cryopreservation tube is placed into the storage tank body 1. When the fixing box 18 is placed into the body 1, the sealing cover 4 is first opened, then the placing rack is placed into the appropriate opening 7. When placed into the opening 7, the push plate one 13 is first pulled up, the push plate one 13 can drive the door one 9 to open through the rack one 15 and the gear one 12, then the fixing box 18 is placed between the door one 9 and the door two 11, then the door one 9 is closed, and after a short delay, the door two 11 is opened through the push plate two 14. When the fixing box 18 is completely placed into the abdomen 2 of the body 1, the door two 11 is closed again, the rack rod 20 is turned to the middle of the opening 7, the connecting rod 19 is hung on the rack rod 20 at the top, and finally the body 1 is closed through the sealing cover 4. When the stem cells inside the storage tank need to be taken out, the sealing cover 4 is first opened, the door two 11 is opened through the push plate two 14, the placing rack is lifted upwards, and when the fixing box 18 is lifted between the door one 9 and the door two 11, the door two 11 is closed. After a short delay, the door one 9 is opened, and then the fixing box 18 is taken out. In this process, the door one 9 and the door two 11 are not opened at the same time, which can reduce the overflow of liquid nitrogen in the storage tank.

[0028] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A stem cell storage tank for easy access, characterized by: The application relates to a storage tank body (1) for storing stem cells and a placing rack for placing stem cells, wherein the body (1) comprises a belly (2) for storing liquid nitrogen and a neck (3) for preventing liquid nitrogen overflow, a sealing cover (4) is arranged on the neck (3), a supporting rack (5) is arranged on the middle upper part of the neck (3), a plurality of openings are arranged on the supporting rack (5) and are separated by a partition plate (6), two shafts I (8) are arranged on the top of the openings, two doors I (9) are symmetrically arranged on the two shafts I (8) respectively, two shafts II (10) are arranged on the bottom of the openings, two doors II (11) are symmetrically arranged on the two shafts II (10) respectively, and the door I (9) and the door II (11) are not opened at the same time. An opening and closing assembly for adjusting the opening and closing of the door I (9) and the door II (11) is arranged on the supporting rack (5).

2. The stem cell storage tank of claim 1, wherein: The opening and closing assembly comprises a gear I (12) arranged on the shaft I (8), a push plate I (13) and a push plate II (14) are arranged on the supporting rack (5), two racks I (15) are arranged on the push plate I (13) and are matched with the gear I (12) respectively, a gear II (16) is arranged on the shaft II (10), and two racks II (17) are arranged on the push plate II (14) and are matched with the gear II (16) respectively.

3. The stem cell storage tank of claim 2, wherein: The placing rack comprises a fixing box (18) for fixing stem cell freezing tubes, a connecting rod (19) is fixedly connected to the top of the fixing box (18), and the top end of the connecting rod (19) is bent into a hook shape.

4. The stem cell storage tank of claim 3, wherein: An rack rod (20) for hanging the connecting rod (19) is arranged on the partition plate (6).

5. The stem cell storage tank of claim 4, wherein: A placing groove (21) for overturning the rack rod (20) is arranged on the partition plate (6).

6. The stem cell storage tank of claim 5, wherein: Notches (22) for the connecting rod (19) to pass through are arranged on the door I (9) and the door II (11) respectively.

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