Test tube unfreezing device

Abstract

The utility model discloses a test tube unfreezing device which comprises a box body, a test tube rack and a base, the box body is sequentially provided with an air drying bin and a water circulation unfreezing bin from top to bottom, a limiting supporting plate is arranged on the inner wall of the air drying bin, and a support plate is arranged at the junction position of the air drying bin and the water circulation unfreezing bin; a plurality of through holes are formed in the bottom of the water circulation unfreezing bin; a plurality of mounting holes for placing test tubes are formed in the test tube rack; vent holes and an exhaust fan are arranged on the side wall of the air drying bin; a constant-temperature heater and a water pump are arranged in the base, and a controller is arranged on the outer side. By integrating the constant-temperature heater, the water circulation system and the air drying function, the problems that the water temperature drops quickly and water drips from the outer walls of the test tubes when the test tubes are unfrozen in batches are solved; the constant-temperature heater is matched with the water pump, so that water in the water circulation unfreezing bin can be kept at a proper temperature, and the unfreezing process is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of assisted reproductive technology, specifically relates to a test tube thawing device. BACKGROUND

[0002] The "test tube thawing" in the hospital generally refers to the process of thawing previously cryopreserved embryos or oocytes during the assisted reproductive technology (such as in vitro fertilization IVF). This process is to enable those who wish to conceive through assisted reproductive technology to use the previously saved biological materials, and the test tube needs to be thawed when using the saved biological materials, and the temperature control is very important in this process, and appropriate temperature thawing can ensure that the cell structure of the embryo or oocyte is not damaged.

[0003] The existing cryopreservation technology mainly includes two methods of slow freezing and vitrification freezing, which are as follows:

[0004] 1. Slow freezing, thawing under slow freezing usually involves taking the sample out of liquid nitrogen and gradually warming it to room temperature or close to physiological temperature, and the whole process needs to carefully adjust the temperature change speed to avoid too fast to cause ice crystal damage to the cells.

[0005] 2. Vitrification freezing, vitrification freezing is a rapid freezing technology, and in this case, thawing also tends to be more rapid, generally speaking, the vitrified sample will be quickly transferred to a solution preheated to a specific temperature (such as between 40-50°C) to quickly melt the protective agent and restore normal physiological conditions.

[0006] Among them, vitrification freezing is a more commonly used and recommended method, especially in the cryopreservation of embryos and oocytes. This is because vitrification freezing can significantly reduce ice crystal formation, thereby reducing damage to cell structure and improving survival rate after thawing; and compared with slow freezing, vitrification freezing is very fast and can complete the freezing process within a few seconds, reducing operation time and complexity; at the same time, the success rate is higher when the embryos and oocytes frozen using the vitrification freezing method are transplanted after thawing. However, the water temperature of the existing test tube will quickly drop when thawing in batches, making it difficult to achieve the effect of rapid thawing, and the thawed test tube cannot be directly transferred without wiping dry, which can easily cause water droplets on the operating table, affecting subsequent use. However, manually wiping each test tube is time-consuming and tedious. UTILITY MODEL CONTENTS

[0007] In view of the fact that the water temperature of the batch test tube is prone to rapid drop during thawing, it is difficult to ensure the thawing effect, and there is a water droplet phenomenon on the outer wall of the thawed test tube, which can affect the subsequent operation, the utility model provides a test tube thawing device which can heat the solution temperature during thawing, effectively ensure the test tube thawing rate, and quickly dry the test tube after thawing.

[0008] To achieve the above object, the technical scheme of the utility model is as follows:

[0009] A test tube thawing device, including box body, test tube rack and base, wherein the base is internally provided with a water injection cavity, and the top surface of the water injection cavity is provided with a notch connected with the box body; the box body is sequentially provided with a dry warehouse and a water circulation thawing warehouse from top to bottom, wherein the inner wall of the upper end of the dry warehouse is provided with a foldable limiting support plate, and the junction position of the dry warehouse and the water circulation thawing warehouse is provided with a support plate; the position close to the side wall of the bottom of the water circulation thawing warehouse is provided with a through hole; the top of the through hole is higher than the bottom plate of the water circulation thawing warehouse, and the through hole is communicated with the base, and the water circulation thawing warehouse and the base are both filled with water for thawing; the test tube rack is provided with a plurality of mounting holes for placing test tubes; the side wall of the dry warehouse is uniformly provided with a plurality of air holes, and one side wall is provided with an exhaust fan; the inside of the base is provided with a constant temperature heater and a water pump, and the outside of the base is further provided with a controller connected with the constant temperature heater and the water pump respectively, and the water outlet of the water pump is communicated with the bottom plate of the side of the water circulation thawing warehouse away from the through hole.

[0010] Further, the constant temperature heater comprises an electric heating wire and a temperature controller, wherein the electric heating wire is placed on the bottom surface of the inner cavity of the base; the temperature controller is provided with wires and is connected with the electric heating wire and the controller through the wires. When in use, the controller controls the opening and closing of the temperature controller, and the temperature controller controls the heating temperature of the electric heating wire, and the principle is the same as that of the existing constant temperature heating cup mat, the overall structure is simple and the temperature control effect is good, and the device is convenient to use.

[0011] Further, the top of the test tube rack comprises a test tube placing plate and a handle, wherein the test tube placing plate is provided with a plurality of mounting holes, and the handle is rotatably installed on the top of the test tube placing plate. The test tubes to be thawed are placed in the mounting holes, and the handle can facilitate the movement of the test tube rack.

[0012] Further, the inner wall of the dry warehouse is provided with a groove accommodating the limiting support plate, and the limiting support plate is folded into the groove. The groove cooperates with the limiting support plate to facilitate the storage of the limiting support plate, and the limiting support plate occupies a small space after being stored, which facilitates the movement of the test tube rack.

[0013] Further, one side of the limiting support plate is provided with a hinge, and the other end of the hinge is connected with the bottom of the groove. The limiting support plate is connected with the groove of the dry warehouse through the hinge, which facilitates the storage of the limiting support plate.

[0014] Further, the support plate has at least two, and the two support plates are symmetrically arranged at the junction position of the dry warehouse and the water circulation thawing warehouse in the inner wall of the box body. At least one pair of support plates can ensure that the test tube rack is stably and reliably limited, and side turning does not occur.

[0015] Further, the controller is a single-chip microcomputer.

[0016] Method for using:

[0017] When in use, the limiting support plate in the air-drying bin is in a retracted state, the thermostat heater and the water pump are turned on by the controller, the thermostat heater heats the water in the base, the water pump pumps the heated water into the water circulation thawing bin, and then the excess water in the water circulation thawing bin flows back to the cavity of the base through the through hole, the circulation of the constant-temperature water flow can quickly thaw the test tubes, after the test tubes are thawed, the thermostat heater and the water pump are turned off by the controller, then the test tube rack is lifted, after the test tube rack is lifted, the limiting support plate is opened, at this time, the test tube rack is placed back into the air-drying bin, and then the exhaust fan is turned on, the exhaust fan pumps out the air in the air-drying bin, and the air-drying bin is used for air-drying the outer wall of the test tube.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] 1. The utility model discloses a kind of test tube thawing devices, including base, thermostat heater, water pump, water circulation thawing bin, air-drying bin and exhaust fan, the base is provided with thermostat heater and water pump, the water circulation thawing bin is connected to the water pump, the air-drying bin is connected to the water circulation thawing bin, and the exhaust fan is connected to the air-drying bin, the base is provided with test tube rack, and the test tube rack is provided with test tube placing plate and lifting handle, the air-drying bin is provided with limiting support plate, and the limiting support plate is provided with limiting support plate.

[0020] 2. The thermostat heater of the utility model realizes accurate control to the temperature of the bottom surface of the inner cavity of the base by the cooperation of heating wire and temperature controller, ensures that heating is safe and efficient;The temperature controller is connected to the controller by wire, and the user can conveniently adjust the heating state by the controller;The test tube rack top is designed to include a test tube placing plate and a lifting handle, the mounting hole facilitates the test tube limiting placement, and the lifting handle facilitates the overall movement, improving the flexibility of use;The air-drying bin is specially provided with a groove for storing the limiting support plate, and the design of the hinge enables the limiting support plate to provide stable support during use and easily store in the groove when not in use, saving space;Using a single-chip microcomputer as the core component of the control system not only reduces the manufacturing cost, but also ensures the safety and reliability during operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a left view structure cross-sectional view schematic diagram of a test tube thawing device.

[0022] Figure 2 It is a main view structure schematic diagram of a test tube thawing device.

[0023] Figure 3 is a top view structural schematic diagram of a test tube rack in a test tube thawing device.

[0024] Figure 4 is a top view structural schematic diagram of a water circulation thawing bin in a test tube thawing device.

[0025] Figure 5 is a left view structural sectional view schematic diagram of a test tube drying in a test tube thawing device

[0026] The drawings identify:

[0027] Box body - 1, air drying bin - 11, air hole - 111, groove - 112, water circulation thawing bin - 12, limiting support plate - 13, support plate - 14, through hole - 15, test tube rack - 2, mounting hole - 21, test tube placing plate - 22, handle - 23, base - 3, exhaust fan - 4, constant temperature heater - 5, heating wire - 51, temperature controller - 52, water pump - 6, controller - 7. DETAILED DESCRIPTION

[0028] The utility model is further described below in combination with the drawings.

[0029] Embodiment 1: a test tube thawing device, including box body 1, test tube rack 2 and base 3, wherein the inside of base 3 is provided with a water injection cavity, and the top surface of the inside of the water injection cavity is provided with a notch connected with box body 1;The box body 1 is sequentially arranged as air drying bin 11 and water circulation thawing bin 12 from top to bottom, wherein the inner wall of the upper end of air drying bin 11 is provided with retractable limiting support plate 13, and support plate 14 is arranged at the junction position of air drying bin 11 and water circulation thawing bin 12;The position close to the side wall of the bottom of water circulation thawing bin 12 is provided with through hole 15;The top of through hole 15 is higher than the bottom plate of water circulation thawing bin 12, and through hole 15 is communicated with base 3, and water circulation thawing bin 12 and base 3 are both filled with water for thawing;The test tube rack 2 is provided with a plurality of mounting holes 21 for placing test tubes;The side wall of air drying bin 11 is uniformly provided with a plurality of air holes 111, and an exhaust fan 4 is arranged through one side wall;The inside of base 3 is provided with constant temperature heater 5 and water pump 6, and the outside of base 3 is further provided with controller 7 connected with constant temperature heater 5 and water pump 6 respectively, wherein the water outlet of water pump 6 is communicated with the bottom plate of the side of water circulation thawing bin 12 away from through hole 15.

[0030] Method for use:

[0031] The device can be filled with water through the top of the box body 1, and the water enters the water circulation thawing bin 12 and then enters the cavity of the base 3 through the through hole 15 of the water circulation thawing bin 12. Conversely, the water in the box body 1 can be poured out by inverting the box body 1. When in use, the limiting support plate 13 in the air drying bin 11 is in a retracted state, the thermostat heater 5 and the water pump 6 are turned on through the controller 7, the thermostat heater 5 heats the water in the cavity of the base 3, the water pump 6 pumps the heated water into the water circulation thawing bin 12, and then the excess water in the water circulation thawing bin 12 flows back into the cavity of the base 3 through the through hole 15. The circulation of the constant-temperature water flow can quickly thaw the test tubes. After the test tubes are thawed, the thermostat heater 5 and the water pump 6 are turned off through the controller 7, and then the test tube rack 2 is lifted. After the test tube rack 2 is lifted, the limiting support plate 13 is opened, and then the test tube rack 2 is placed back into the air drying bin 11. Then the exhaust fan 4 is turned on to exhaust the air in the air drying bin 11 and dry the outer wall of the test tube.

[0032] The top of the box body 1 can be provided with a cover as needed, and the cover is detachably mounted on the top of the box body 1.

[0033] In example 2, the thermostat heater 5 includes an electric heating wire 51 and a temperature controller 52, wherein the electric heating wire 51 is placed on the bottom surface of the inner cavity of the base 3, and the temperature controller 52 is provided with wires connected to the electric heating wire 51 and the controller 7. When in use, the temperature controller 52 is turned on and off through the controller 7, and the temperature controller 52 controls the heating temperature of the electric heating wire 51. The principle is the same as that of the existing thermostat heating cup pad, the overall structure is simple and the temperature control effect is good, and the device is convenient to use.

[0034] The inner wall of the air drying bin 11 is provided with a groove 112 accommodating the limiting support plate 13, and the limiting support plate 13 is retracted into the groove 112. The groove 112 cooperates with the limiting support plate 13 to facilitate the storage of the limiting support plate 13, and the limiting support plate 13 occupies a small space after being stored, which facilitates the movement of the test tube rack 2.

[0035] The controller 7 is a single-chip microcomputer. The single-chip microcomputer has good control effect, low cost and safe and stable use.

[0036] In example 3, the test tube rack 2 includes a test tube placing plate 22 and a handle 23, wherein the test tube placing plate 22 is provided with a plurality of mounting holes 21, and the handle 23 is rotatably mounted on the top of the test tube placing plate 22. The test tubes to be thawed are placed in the mounting holes 21, and the handle 23 facilitates the movement of the test tube rack 2.

[0037] The support plates 14 are at least two, and the two support plates 14 are symmetrically arranged at the joint position of the air-drying bin 11 and the water circulation thawing bin 12 in the inner wall of the box body 1. The at least one pair of support plates 14 can ensure that the limiting test tube rack 2 is stably and reliably supported, and side turning does not occur.

[0038] One side of the limiting support plate 13 is provided with a hinge, and the other end of the hinge is connected with the bottom of the groove 112. The limiting support plate 13 is connected with the groove 112 of the air-drying bin 11 through the hinge, so that the limiting support plate 13 is conveniently stored.

[0039] In the description of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail, so as not to obscure the understanding of the present specification.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model, and they should be covered in the scope of the claims and the description of the utility model.

Claims

1. A test tube thawing apparatus, characterized by: The utility model relates to a kind of freeze thawing device, including box (1), test tube rack (2) and pedestal (3), wherein pedestal (3) inside is equipped with a water injection cavity, and the top surface of water injection cavity inside is equipped with a gap connecting box (1);The box (1) is sequentially arranged as air-drying bin (11) and water circulation thawing bin (12) from top to bottom, wherein the inner wall of air-drying bin (11) is equipped with retractable limit support plate (13) in upper end, and air-drying bin (11) and water circulation thawing bin (12) are equipped with support plate (14) at the junction position;Water circulation thawing bin (12) bottom is equipped with through hole (15) near side wall;The through hole (15) top is higher than the bottom plate of water circulation thawing bin (12), and through hole (15) is communicated with pedestal (3), and water circulation thawing bin (12) and pedestal (3) are all filled with water for thawing;Test tube rack (2) is equipped with a plurality of installation holes (21) for placing test tubes;Air-drying bin (11) side wall is evenly equipped with a plurality of air holes (111), and one side wall is equipped with exhaust fan (4) through;The inside of pedestal (3) is equipped with thermostat heater (5) and water pump (6), and the outside of pedestal (3) is also equipped with controller (7) connected with thermostat heater (5) and water pump (6) respectively, wherein the water outlet of water pump (6) is communicated with the bottom plate of water circulation thawing bin (12) side away from through hole (15).

2. A test tube thawing device as claimed in claim 1, characterized in that: The thermostat heater (5) includes an electric heating wire (51) and a temperature controller (52), wherein the electric heating wire (51) is placed on the bottom surface of the inner cavity of the pedestal (3);The temperature controller (52) is equipped with wires, and the electric heating wire (51) and the controller (7) are connected through the wires.

3. A test tube thawing device as claimed in either of claims 1 or 2, characterized in that: The test tube rack (2) top includes a test tube placing plate (22) and a handle (23), wherein the test tube placing plate (22) is equipped with a plurality of installation holes (21), and the handle (23) is rotatably installed on the top of the test tube placing plate (22).

4. A test tube thawing device as claimed in claim 1, characterized in that: The inner wall of the air-drying bin (11) is equipped with a groove (112) for accommodating the limit support plate (13), and the limit support plate (13) is retracted by being clamped into the groove (112).

5. A test tube thawing device as claimed in claim 4, characterised in that: One side of the limit support plate (13) is equipped with a hinge, and the other end of the hinge is connected with the bottom of the groove (112).

6. A test tube thawing device as claimed in claim 1, characterized in that: The support plate (14) has at least two, and the two support plates (14) are symmetrically arranged at the junction position of the air-drying bin (11) and the water circulation thawing bin (12) in the inner wall of the box (1).

7. A test tube thawing device as claimed in claim 1, characterized in that: The controller (7) is a single-chip microcomputer.

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