Stem cell cryopreservation device

Abstract

The utility model discloses a stem cell cryopreservation device, which relates to the technical field of stem cell cryopreservation and comprises a cryopreservation box and a storage tank, a plurality of support columns are arranged in the cryopreservation box, connecting frames are arranged at the tops of the support columns, four air inlets are arranged on the connecting frames, and the air inlets are communicated with the storage tank. The top of each connecting frame is provided with a concentric-square-shaped plate, the concentric-square-shaped plates are arranged on the cryopreservation box, each concentric-square-shaped plate is provided with a lifting mechanism used for lifting the storage tank and shielding the air inlet, the lifting mechanisms are arranged on the connecting frames, and the lifting mechanisms are provided with positioning mechanisms used for storing and positioning the storage tank. The lifting mechanism comprises two fixing frames, the fixing frames are fixedly installed at the top of the concentric-square-shaped plate, and a screw rod is rotationally installed in one fixing frame, so that when the storage tank is independently taken and placed, cold air loss in the cryopreservation box is reduced, operation is easy, and practicability is high.

Description

Technical Field

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

[0002] Stem cells are a type of primitive cell with self-renewal capacity and multi-directional differentiation potential, known as "universal cells" or "origin cells." They can produce daughter cells identical to themselves through division, maintaining cell population stability. They can also differentiate into various functional cells such as nerve, muscle, and blood cells, participating in tissue repair and organ regeneration. Based on developmental stage, they can be divided into embryonic stem cells (derived from early embryos, with near-total pluripotent differentiation capacity) and adult stem cells (found in mature tissues such as bone marrow and adipose tissue, with more limited differentiation potential). Based on differentiation potential, they are further divided into totipotent stem cells (such as fertilized eggs), pluripotent stem cells (such as embryonic stem cells), and unipotent stem cells (such as skin stem cells). Stem cells precisely locate the site of injury through homing and secrete growth factors to regulate the microenvironment, showing great potential in regenerative medicine. Currently, their applications cover the treatment and research of various diseases such as heart disease, diabetes, and Parkinson's disease.

[0003] In existing technologies, stem cells are stored using cryopreservation. Most stem cell cryopreservation devices typically place multiple storage tanks in a cryopreservation box during use. Since the internal space of the cryopreservation box is interconnected, multiple storage tanks are in the same low-temperature space. When accessing or retrieving a storage tank, the cryopreservation box door is opened. Because access is not completed quickly, after opening, due to the interconnected space, it may be necessary to sort and retrieve the tank. During this process, because the opening of the cryopreservation box is relatively large, cold air inside will escape to the outside. Over time, the loss of cold air will increase.

[0004] Therefore, a stem cell cryopreservation device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a stem cell cryopreservation device in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A stem cell cryopreservation device includes a cryopreservation box and a storage tank. The cryopreservation box has multiple support columns inside, and each of the support columns has a connecting frame at its top. Each connecting frame has four air inlets, and each connecting frame has a U-shaped plate at its top, which is mounted on the cryopreservation box. Each U-shaped plate has a lifting mechanism for lifting the storage tank and blocking the air inlets, and the lifting mechanism is mounted on the connecting frame. The lifting mechanism also has a positioning mechanism for positioning the storage tank.

[0008] Furthermore, the lifting mechanism includes two fixed frames, which are fixedly installed on the top of the U-shaped plate. A screw is rotatably installed inside one of the fixed frames, and a cylinder is fixedly installed inside the other fixed frame. A lifting plate is threaded onto the outer wall of the screw, and the lifting plate is slidably installed on the outer wall of the cylinder. One end of the screw extends outside the fixed frame, and a knob is fixedly installed on the surface of the extended end of the screw.

[0009] Furthermore, a sealing strip is fixedly installed on the surface of the lifting plate, and the sealing strip is made of rubber.

[0010] Furthermore, two fixing rods are fixedly installed at the bottom of the lifting plate, and the fixing rods are slidably installed on the U-shaped plate, with a load plate fixedly installed at the bottom of the two fixing rods.

[0011] Furthermore, four baffles are fixedly installed at the bottom of the loading plate, and the baffles are slidably installed on the inner wall of the air inlet.

[0012] Furthermore, the positioning mechanism includes four arc-shaped plates, which are fixedly installed on the top of the carrier plate, and each of the four arc-shaped plates has a vent hole through its surface.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention, through the design of an air inlet, a lifting mechanism, and a positioning mechanism, allows for efficient operation. When a storage tank is placed inside the cryogenic chamber, the lifting mechanism moves the positioning mechanism upwards, extending it from inside the chamber. The lifting mechanism also blocks the air inlet, reducing the outward diffusion of cold air and its impact on the freezing temperature of other storage tanks. The storage tank is then placed on the positioning mechanism for positioning. After placement, the lifting mechanism moves the storage tank downwards, allowing it to enter the cryogenic chamber. At this point, the air inlet is unblocked, allowing cold air to enter the connecting frame and contact the storage tank. The lifting mechanism also seals the opening of the U-shaped plate, thus minimizing cold air loss when individually placing or removing storage tanks. The design is simple to operate and highly practical. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a structural schematic diagram of the fixing frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the connecting frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the arc-shaped plate of this utility model.

[0019] Reference numerals in the attached drawings: 1. Cryogenic box; 2. Support column; 3. Connecting frame; 4. Air inlet; 5. U-shaped plate; 6. Lifting mechanism; 601. Fixed frame; 602. Screw; 603. Cylindrical column; 604. Lifting plate; 605. Fixed rod; 606. Carrying plate; 607. Baffle plate; 608. Knob; 7. Positioning mechanism; 701. Arc plate; 702. Vent hole; 8. Storage tank. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can be used for control.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figure 1-3As shown, a stem cell cryopreservation device includes a cryopreservation box 1 and a storage tank 8. The cryopreservation box 1 has multiple support pillars 2 inside, each with a connecting frame 3 at its top. Each connecting frame 3 has four air inlets 4, and each connecting frame 3 has a U-shaped plate 5 at its top, which is mounted on the cryopreservation box 1. Each U-shaped plate 5 has a lifting mechanism 6 for lifting the storage tank 8 and blocking the air inlets 4, and the lifting mechanism 6 is mounted on the connecting frame 3. The lifting mechanism 6 also has a positioning mechanism 7 for positioning the storage tank 8. In this embodiment, it is noted that a label can be placed on the U-shaped plate 5 for easy identification and placement. During use, when the storage tank 8 is placed into the cryopreservation box 1, the lifting mechanism 7... The lowering mechanism 6 drives the positioning mechanism 7 to move upward, so that the positioning mechanism 7 extends out of the cryogenic chamber 1. The lifting mechanism 6 blocks the air inlet 4 to reduce the diffusion of cold air from inside the cryogenic chamber 1 and its impact on the freezing temperature of other storage tanks 8 inside the cryogenic chamber 1. Then, the storage tank 8 is placed on the positioning mechanism 7 for positioning. After the storage tank 8 is placed, it is moved downward by the lifting mechanism 6 so that the storage tank 8 enters the interior of the cryogenic chamber 1. At this time, the blockage of the air inlet 4 is released, and cold air can enter the connecting frame 3 and contact the storage tank 8. The lifting mechanism 6 can also block and seal the opening of the U-shaped plate 5, thereby reducing the loss of cold air inside the cryogenic chamber 1 when the storage tank 8 is picked up and put down individually. The operation is simple and highly practical.

[0026] like Figure 1-4 As shown, the lifting mechanism 6 includes two fixed frames 601, which are fixedly installed on the top of the U-shaped plate 5. A screw 602 is rotatably installed inside one of the fixed frames 601, and a cylinder 603 is fixedly installed inside the other fixed frame 601. A lifting plate 604 is threaded onto the outer wall of the screw 602, and the lifting plate 604 is slidably installed on the outer wall of the cylinder 603. One end of the screw 602 extends outside the fixed frame 601, and a knob 608 is fixedly installed on the surface of the extended end of the screw 602. In this embodiment, by rotating the knob 608, the screw 602 is driven to rotate, so that the lifting plate 604 moves longitudinally with the cooperation of the cylinder 603, thereby adjusting the height of the lifting plate 604.

[0027] like Figure 4 As shown, a sealing strip is fixedly installed on the surface of the lifting plate 604, and the sealing strip is made of rubber. In this embodiment, the setting of the rubber sealing strip enhances the stability of the lifting plate 604 in blocking and sealing the opening of the U-shaped plate 5.

[0028] like Figure 4As shown, two fixing rods 605 are fixedly installed at the bottom of the lifting plate 604, and the fixing rods 605 are slidably installed on the U-shaped plate 5. A carrying plate 606 is fixedly installed at the bottom of the two fixing rods 605. In this embodiment, when the lifting plate 604 moves longitudinally, the two fixing rods 605 and the carrying plate 606 move accordingly, and the storage tank 8 on the carrying plate 606 moves accordingly, making it convenient to pick up and put down.

[0029] like Figure 2-4 As shown, four baffles 607 are fixedly installed at the bottom of the loading plate 606, and the baffles 607 are slidably installed on the inner wall of the air inlet 4. In this embodiment, by setting the baffles 607, when the loading plate 606 moves longitudinally, the baffles 607 move accordingly to block the air inlet 4 and reduce the loss of cold air.

[0030] like Figure 2 , Figure 4 As shown, the positioning mechanism 7 includes four arc-shaped plates 701, and the arc-shaped plates 701 are fixedly installed on the top of the carrier plate 606. Each of the four arc-shaped plates 701 has a vent hole 702 through it. In this embodiment, the storage tank 8 can be positioned by the four arc-shaped plates 701 combined into a circular outline, and the vent hole 702 can increase the contact of cold air.

[0031] In summary, during use, when the storage tank 8 is placed into the cryogenic chamber 1, the lifting mechanism 6 drives the positioning mechanism 7 upward, causing the positioning mechanism 7 to extend from inside the cryogenic chamber 1. The lifting mechanism 6 also blocks the air inlet 4, reducing the outward diffusion of cold air from inside the cryogenic chamber 1 and its impact on the freezing temperature of other storage tanks 8 within the cryogenic chamber 1. Then, the storage tank 8 is placed on the positioning mechanism 7 for positioning. After placement, the lifting mechanism 6 moves it downward, allowing the storage tank 8 to enter the interior of the cryogenic chamber 1. At this point, the obstruction of the air inlet 4 is released, allowing cold air to enter the connecting frame 3 and contact the storage tank 8. The lifting mechanism 6 also blocks and seals the opening of the U-shaped plate 5, thus reducing the loss of cold air from inside the cryogenic chamber 1 when individually placing or removing the storage tank 8. The operation is simple. It is highly practical. By rotating the knob 608, the screw 602 is driven to rotate, causing the lifting plate 604 to move longitudinally with the cooperation of the cylinder 603, thereby adjusting the height of the lifting plate 604. The rubber sealing strip enhances the stability of the lifting plate 604 in blocking the opening of the U-shaped plate 5. When the lifting plate 604 moves longitudinally, the two fixed rods 605 and the carrying plate 606 move accordingly, and the storage tank 8 on the carrying plate 606 moves accordingly, making it easy to pick up and put down. With the setting of the baffle plate 607, when the carrying plate 606 moves longitudinally, the baffle plate 607 moves accordingly to block the air inlet 4 and reduce the loss of cold air. The four arc plates 701 are combined to form a circular outline, which can position the storage tank 8, and the setting of the vent hole 702 can increase the contact of cold air.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stem cell cryopreservation device, comprising a cryopreservation box (1) and a storage container (8), characterized in that, The cryogenic storage box (1) is provided with multiple support columns (2), and each of the multiple support columns (2) is provided with a connecting frame (3). Each of the multiple connecting frames (3) is provided with four air inlets (4). Each of the multiple connecting frames (3) is provided with a U-shaped plate (5), and the U-shaped plate (5) is provided on the cryogenic storage box (1). Each of the multiple U-shaped plates (5) is provided with a set of lifting mechanisms (6) for lifting the storage tank (8) and blocking the air inlets (4). The lifting mechanisms (6) are provided on the connecting frames (3). The lifting mechanisms (6) are provided with a positioning mechanism (7) for positioning the storage tank (8).

2. The stem cell cryopreservation device according to claim 1, characterized in that, The lifting mechanism (6) includes two fixed frames (601). The fixed frames (601) are fixedly installed on the top of the U-shaped plate (5). A screw (602) is rotatably installed inside one of the fixed frames (601), and a cylinder (603) is fixedly installed inside the other fixed frame (601). A lifting plate (604) is threaded on the outer wall of the screw (602), and the lifting plate (604) is slidably installed on the outer wall of the cylinder (603). One end of the screw (602) extends outside the fixed frame (601), and a knob (608) is fixedly installed on the surface of the extended end of the screw (602).

3. The stem cell cryopreservation device according to claim 2, characterized in that, A sealing strip is fixedly installed on the surface of the lifting plate (604), and the sealing strip is made of rubber.

4. The stem cell cryopreservation device according to claim 2, characterized in that, The bottom of the lifting plate (604) is fixedly installed with two fixing rods (605), and the fixing rods (605) are slidably installed on the U-shaped plate (5). The bottom of the two fixing rods (605) is fixedly installed with a carrying plate (606).

5. A stem cell cryopreservation device according to claim 4, characterized in that, Four baffles (607) are fixedly installed at the bottom of the loading plate (606), and the baffles (607) are slidably installed on the inner wall of the air inlet (4).

6. The stem cell cryopreservation device according to claim 4, characterized in that, The positioning mechanism (7) includes four arc-shaped plates (701), and the arc-shaped plates (701) are fixedly installed on the top of the carrier plate (606). Each of the four arc-shaped plates (701) has a vent hole (702) through it.

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