Stem cell low-temperature preservation device

Abstract

The utility model discloses a stem cell low-temperature preservation device which comprises an ultralow-temperature refrigerator, the upper end of the ultralow-temperature refrigerator is fixedly connected with a refrigerating chamber, the bottom of the refrigerating chamber is fixedly connected with a supporting seat, a clamping groove is formed in the middle end of the top of the supporting seat, and containing grooves are formed in the two ends of the supporting seat. The two ends of the containing groove are movably connected with guide wheels through bearings, and the surfaces of the guide wheels are movably connected with supporting sliding rods. Through the arrangement of the containing table, stem cell samples needing to be stored at low temperature can be contained in a refrigerating chamber of the ultralow-temperature refrigerator, through the arrangement of the containing groove, the guide wheel and the supporting sliding rod, supporting and guiding can be conducted between the supporting base and the two ends of the containing table, and meanwhile through the arrangement of the fixing shell, the clamping rod and the clamping groove, the stem cell samples can be stored at low temperature. The containing table and the supporting base can be clamped and limited, and the situation that the containing table is displaced due to stress in the low-temperature preservation process of the stem cell samples is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stem cell preservation technology, specifically a stem cell cryopreservation device. Background Technology

[0002] Stem cells, as a type of cell with self-renewal and differentiation potential, have shown great application potential in medical research, disease treatment and other fields. The preservation of stem cells is crucial for their subsequent research and application, and cryopreservation is a commonly used and effective method. Currently, ultra-low temperature freezers are commonly used equipment for the cryopreservation of stem cells. However, due to the deep storage space inside, it is extremely inconvenient for personnel to retrieve samples placed in deeper locations. It is also difficult to quickly and accurately locate the required samples, and the process often requires personnel to reach their arms in, increasing the risk of frostbite. Utility Model Content

[0003] The purpose of this invention is to provide a stem cell cryopreservation device that allows personnel to quickly locate and retrieve stem cell samples, greatly facilitating material handling and improving operational safety.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stem cell cryopreservation device, comprising an ultra-low temperature freezer, a refrigerator compartment fixedly connected to the upper end of the ultra-low temperature freezer, a support base fixedly connected to the bottom of the refrigerator compartment, a slot formed at the middle of the top of the support base, receiving slots formed at both ends of the support base, guide wheels movably connected to both ends of the receiving slots via bearings, support slide rods movably connected to the surfaces of the guide wheels, a holding platform fixedly connected between the surfaces of the two support slide rods, a fixed shell fixedly connected to the middle of the front surface of the holding platform, a locking rod movably connected between the middle of the bottom of the fixed shell and the surface of the slot, a toggle plate fixedly connected to the top of the locking rod, a rotating rod movably connected to the middle of the front surface of the fixed shell via bearings, an L-shaped rod fixedly connected to the back of the rotating rod, and the lower end of the L-shaped rod movably connected to the middle of the toggle plate.

[0005] As a preferred embodiment, a groove is provided at the middle of the top of the support base and behind the slot, and a support wheel is movably connected to the bottom of the holding platform via a bearing, with the bottom of the support wheel movably connected to the bottom of the groove.

[0006] As a preferred embodiment, both ends of the actuating plate are movably connected to guide slide rods, and the two sides of the guide slide rods are fixedly connected to the inner cavity of the fixed shell.

[0007] As a preferred embodiment, a torsion spring is fixedly connected between the surface of the rotating rod and the inner cavity of the fixed shell, and the rotating rod is T-shaped.

[0008] As a preferred embodiment, a partition plate is fixedly connected to the middle of the top of the serving platform, and a protective railing is fixedly connected to the four sides of the top of the serving platform.

[0009] As a preferred embodiment, the bottom of the ultra-low temperature freezer is fixedly connected with four rubber supports.

[0010] As a preferred embodiment, a secondary sealing door is movably connected to the left end of the front surface of the ultra-low temperature freezer via a hinge, and a main sealing door is movably connected to the left end of the front surface of the ultra-low temperature freezer and to the left of the secondary sealing door via a hinge.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, through the setting of a holding platform, allows for the placement of stem cell samples requiring cryopreservation inside the refrigerator compartment of an ultra-low temperature freezer. The inclusion of a receiving slot, guide wheels, and a supporting slide bar provides support and guidance between the support base and both ends of the holding platform. Furthermore, the use of a fixing shell, locking rod, and locking groove ensures a secure connection between the holding platform and the support base, preventing displacement of the holding platform due to stress during cryopreservation. The coordinated action of the rotating rod, L-shaped rod, actuating plate, locking rod, fixing shell, locking groove, supporting slide bar, and guide wheels facilitates easy access for personnel during stem cell sample retrieval. The holding platform extends from inside the refrigerator compartment, allowing for convenient and quick sample handling. This design effectively avoids the need for personnel to extend their arms into the refrigerator compartment during sample retrieval, reducing the risk of frostbite.

[0013] 2. This utility model, through the setting of grooves and support wheels, can support and guide the bottom of the holding platform, preventing the holding platform from tilting due to load during use. The setting of guide slide rods achieves the purpose of supporting and guiding the actuating plate, preventing the actuating plate from tilting during movement. The setting of torsion springs can apply pressure to the torsion springs when the operator operates the rotating rod, causing the torsion springs to generate a reaction force on the rotating rod, so that when the operator stops operating the rotating rod, the torsion springs can drive the rotating rod to rotate back to its original position. The setting of partition plates and guardrails can protect the top of the holding platform from falling stem cell samples and facilitate the placement of stem cell samples in sections. The setting of rubber supports achieves the purpose of supporting the bottom of the ultra-low temperature freezer. The setting of main sealing door and secondary sealing door can provide double sealing protection for the front of the cold storage compartment. At the same time, when the operator retrieves stem cell samples, a certain cold storage compartment can be opened through the secondary sealing door, avoiding the need to open multiple cold storage compartments simultaneously during the material retrieval process. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the support base of this utility model on the right side;

[0017] Figure 4 This is a top view of the support structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the toggle plate structure of this utility model.

[0019] In the diagram: 1. Ultra-low temperature freezer; 2. Refrigeration compartment; 3. Support base; 4. Container platform; 5. Main sealing door; 6. Secondary sealing door; 7. Support slide bar; 8. Divider plate; 9. Fixed shell; 10. Guardrail; 11. Receiving slot; 12. Rotating rod; 13. L-shaped rod; 14. Locking rod; 15. Locking slot; 16. Actuating plate; 17. Guide slide bar; 18. Torsion spring; 19. Groove; 20. Support wheel; 21. Guide wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Example 1:

[0023] Please see Figures 1-5As shown, this utility model provides a stem cell cryopreservation device, including an ultra-low temperature freezer 1. A refrigerator compartment 2 is fixedly connected to the upper end of the ultra-low temperature freezer 1. A support base 3 is fixedly connected to the bottom of the refrigerator compartment 2. A slot 15 is opened at the middle of the top of the support base 3. A receiving groove 11 is opened at both ends of the support base 3. A guide wheel 21 is movably connected to both ends of the receiving groove 11 through a bearing. A support slide rod 7 is movably connected to the surface of the guide wheel 21. A holding platform 4 is fixedly connected between the surfaces of the two support slide rods 7. A fixing shell 9 is fixedly connected to the middle of the front surface of the holding platform 4. A locking rod 14 is movably connected between the middle of the bottom of the fixing shell 9 and the surface of the slot 15. A toggle plate 16 is fixedly connected to the top of the locking rod 14. A rotating rod 12 is movably connected to the middle of the front surface of the fixing shell 9 through a bearing. An L-shaped rod 13 is fixedly connected to the back of the rotating rod 12. The lower end of the L-shaped rod 13 is movably connected to the middle of the toggle plate 16.

[0024] In this technical solution, the placement platform 4 allows for the placement of stem cell samples requiring cryopreservation inside the cold storage compartment 2 of the ultra-low temperature freezer 1. The inclusion groove 11, guide wheels 21, and support slide rod 7 provide support and guidance between the support base 3 and both ends of the placement platform 4. The fixing shell 9, locking rod 14, and locking slot 15 lock and limit the connection between the placement platform 4 and the support base 3, preventing displacement of the placement platform 4 due to force during cryopreservation. Furthermore, the coordinated action of the rotating rod 12, L-shaped rod 13, actuating plate 16, locking rod 14, fixing shell 9, locking slot 15, support slide rod 7, and guide wheels 21 facilitates the removal of stem cell samples by extending the placement platform 4 from the inside of the cold storage compartment 2. This makes the operation convenient and quick, effectively avoiding the need for personnel to extend their arms into the cold storage compartment 2 during sample removal, thus reducing the risk of frostbite.

[0025] Example 2:

[0026] Based on Embodiment 1, this utility model is as follows: Figures 1-5As shown, a groove 19 is provided at the middle of the top of the support base 3 and behind the slot 15. The bottom of the holding platform 4 is movably connected to the support wheel 20 via a bearing. The bottom of the support wheel 20 is movably connected to the bottom of the groove 19. Both ends of the actuating plate 16 are movably connected to the guide slide rod 17. The two sides of the guide slide rod 17 are fixedly connected to the inner cavity of the fixed shell 9. A torsion spring 18 is fixedly connected between the surface of the rotating rod 12 and the inner cavity of the fixed shell 9. The rotating rod 12 is T-shaped. A partition plate 8 is fixedly connected at the middle of the top of the holding platform 4. A guardrail 10 is fixedly connected around the top of the holding platform 4. Rubber supports are fixedly connected to the bottom of the ultra-low temperature freezer 1. There are four rubber supports. The left end of the front surface of the ultra-low temperature freezer 1 is movably connected to the secondary sealing door 6 via a hinge. The left end of the front surface of the ultra-low temperature freezer 1 and to the left of the secondary sealing door 6 are movably connected to the main sealing door 5 via a hinge.

[0027] In this technical solution, the groove 19 and support wheel 20 provide support and guidance for the bottom of the serving platform 4, preventing it from tilting due to weight during use. The guide slide 17 supports and guides the actuating plate 16, preventing it from tilting during movement. The torsion spring 18 applies pressure when the operator rotates the lever 12, causing it to generate a reaction force on the lever 12. This ensures that when the operator stops rotating the lever 12, the torsion spring 18 can still rotate the lever. The rod 12 is rotated and reset. The partition plate 8 and the guardrail 10 can protect the top of the holding platform 4 from falling and facilitate the placement of stem cell samples in different areas. The rubber support can support the bottom of the ultra-low temperature freezer 1. The main sealing door 5 and the secondary sealing door 6 can provide double sealing protection for the front of the refrigerator compartment 2. When personnel take out stem cell samples, they can open a refrigerator compartment 2 through the secondary sealing door 6, avoiding the need to open multiple refrigerator compartments 2 at the same time during the material retrieval process.

[0028] The working principle of this utility model is as follows: The holding platform 4 allows for the placement of stem cell samples requiring cryopreservation within the cold storage compartment 2 of the ultra-low temperature freezer 1. The receiving groove 11, guide wheels 21, and support slide rod 7 provide support and guidance between the support base 3 and both ends of the holding platform 4. Simultaneously, the fixing shell 9, locking rod 14, and locking groove 15 secure the holding platform 4 to the support base 3, preventing displacement of the holding platform 4 due to force during cryopreservation. Furthermore, when personnel need to retrieve the stem cell samples, the platform can be easily moved. Rotating the lever 12 causes the L-shaped lever 13 to rotate. As the L-shaped lever 13 rotates, it passes through the through hole on the actuating plate 16, pushing the actuating plate 16 upward. The movement of the actuating plate 16 causes the locking lever 14 to move upward along the surface of the through hole at the bottom of the fixed shell 9 and the surface of the locking groove 15 until the locking lever 14 can disengage from the surface of the locking groove 15. Then, the personnel can pull the holding platform 4 and the support slide 7 forward along the surface of the guide wheel 21, so that the holding platform 4 can extend from the inside of the cold storage 2, making it convenient for personnel to retrieve stem cell samples.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A stem cell cryopreservation device comprising a ultra-low temperature freezer (1), characterized in that: The upper end of the ultra-low temperature refrigerator (1) is fixedly connected with a refrigeration chamber (2), the bottom of the refrigeration chamber (2) is fixedly connected with a supporting seat (3), the middle end of the top of the supporting seat (3) is provided with a clamping groove (15), both ends of the supporting seat (3) are provided with containing grooves (11), both ends of the containing grooves (11) are movably connected with guide wheels (21) through bearings, the surfaces of the guide wheels (21) are movably connected with supporting sliding rods (7), the surfaces of the two supporting sliding rods (7) are fixedly connected with a containing table (4), the middle end of the front surface of the containing table (4) is fixedly connected with a fixed shell (9), the middle end of the bottom of the fixed shell (9) is movably connected with a clamping rod (14) between the surface of the clamping groove (15), the top of the clamping rod (14) is fixedly connected with a pushing plate (16), the middle end of the front surface of the fixed shell (9) is movably connected with a rotating rod (12) through a bearing, the back surface of the rotating rod (12) is fixedly connected with an L-shaped rod (13), the lower end of the L-shaped rod (13) is movably connected to the middle end of the pushing plate (16).

2. The stem cell cryopreservation device of claim 1, wherein: The middle end of the top of the supporting seat (3) and behind the clamping groove (15) are provided with a groove (19), the bottom of the containing table (4) is movably connected with a supporting wheel (20) through a bearing, the bottom of the supporting wheel (20) is movably connected to the bottom of the groove (19).

3. The stem cell cryopreservation device of claim 1, wherein: Both ends of the pushing plate (16) are movably connected with guide sliding rods (17), the two sides of the guide sliding rods (17) are fixedly connected to the inner cavity of the fixed shell (9).

4. The stem cell cryopreservation device of claim 1, wherein: The surface of the rotating rod (12) is fixedly connected with a torsional spring (18) between the inner cavity of the fixed shell (9), the shape of the rotating rod (12) is T-shaped.

5. The stem cell cryopreservation device of claim 1, wherein: The middle end of the top of the containing table (4) is fixedly connected with a partition plate (8), the periphery of the top of the containing table (4) is fixedly connected with a protective fence (10).

6. The stem cell cryopreservation device of claim 1, wherein: The bottom of the ultra-low temperature refrigerator (1) is fixedly connected with rubber supports, the number of the rubber supports is four.

7. The stem cell cryopreservation device of claim 1, wherein: The left end of the front surface of the ultra-low temperature refrigerator (1) is movably connected with a secondary sealing door (6) through a hinge, the left end of the front surface of the ultra-low temperature refrigerator (1) and left of the secondary sealing door (6) is movably connected with a primary sealing door (5) through a hinge.

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