Anti-evaporation device and blood coagulation analyzer

Abstract

The utility model relates to the technical field of medical detection, and discloses an anti-evaporation device and a blood coagulation analyzer, the anti-evaporation device is applied to the blood coagulation analyzer, the blood coagulation analyzer is provided with an incubation module, and the incubation module is provided with a plurality of incubation positions for positioning and heating containers. The anti-evaporation device comprises a support, a first sealing block, a second sealing block and a driving device, the first sealing block is arranged on the support and movably connected with the support, the first sealing block is provided with a containing groove with a downward groove opening and a material opening which is communicated with the containing groove and allows a container to enter, and the bottom wall, facing the support, of the containing groove is used for covering a container opening of the container. The second sealing block is used for being arranged on the incubation module and forming a sealing face facing the incubation position, the sealing face is opposite to the material opening, the driving device is arranged on the support, and the driving device is connected with the first sealing block and can drive the first sealing block to move in a reciprocating mode so that the material opening can abut against or be separated from the sealing face, and continuous input of extra consumables is avoided. And a tedious sample transfer process is also avoided, and the cost investment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical detection, in particular to an anti-evaporation device and a coagulation analyzer. Background Art

[0002] In the medical process, the diagnosis of some diseases requires the support of sample test results, and the coagulation time of the sample is a commonly used test indicator. Among them, the activated partial thromboplastin time (APTT) determination is the most commonly used sensitive screening test in clinical practice to reflect the coagulation activity of the endogenous coagulation system. It is also an important indicator for preoperative examination. APTT correction test is usually used.

[0003] The existing APTT correction experiment is carried out on a coagulation analyzer. The coagulation analyzer is equipped with a sample incubation and detection module. The sample is first placed in the hole of the incubation module for incubation. After the incubation is completed, the sample is moved to the detection module for coagulation time detection. Since an optical fiber or a detector needs to be inserted into the incubation module, a large number of gaps will be left in the incubation module to ensure the installation of the wiring harness, resulting in the hole of the incubation module usually being in direct contact with the air, and then the sample is directly in contact with the air. Long-term incubation will cause the sample to continue to evaporate in large quantities, thereby reducing the accuracy of the test results. The main measures to solve the above problems are: 1) Add a layer of silicone oil to the sample surface in the reaction cup to prevent sample evaporation; 2) Transfer the sample together with the reaction cup to other incubation devices outside the coagulation analyzer, and transfer it back to the coagulation analyzer after the incubation is completed. However, the addition of silicone oil increases the use of silicone oil as a consumable, thereby increasing the cost of testing and adding a daily maintenance item; the transfer of samples does not make reasonable use of the incubation module of the coagulation analyzer, and makes the operation of the detection process cumbersome, increasing the cost of additional incubation devices and devices for transferring samples. Utility Model Content

[0004] The main purpose of the utility model is to provide an anti-evaporation device, aiming to reduce the evaporation amount of the sample and reduce the cost investment of the instrument.

[0005] To achieve the above-mentioned purpose, the anti-evaporation device proposed in the utility model is applied to a coagulation analyzer, wherein the coagulation analyzer has an incubation module, wherein the incubation module is formed with a plurality of incubation positions for positioning and heating containers, and the anti-evaporation device comprises:

[0006] Support;

[0007] a first sealing block, the first sealing block being arranged on the support and movably connected to the support, the first sealing block being provided with a receiving groove with a notch downward and a material opening communicating with the receiving groove and allowing the container to enter, the bottom wall of the receiving groove facing the support being used to cover the container opening of the container;

[0008] a second sealing block, the second sealing block being used to be disposed in the incubation module and forming a sealing surface facing the incubation position, the sealing surface being opposite to the material port; and

[0009] A driving device is arranged on the support, the driving device is connected to the first sealing block and can drive the first sealing block to reciprocate so that the material port abuts against or separates from the sealing surface.

[0010] Optionally, a flange is formed on the outer periphery of the container mouth of the container, characterized in that a peripheral wall portion of the accommodating groove protrudes to form a limited position convex portion;

[0011] The limiting protrusion is spaced apart from the bottom wall of the accommodating groove and an avoidance groove is formed between the limiting protrusion and the bottom wall of the accommodating groove. The avoidance groove is connected to the material port and is used to accommodate the flange. The upper side wall of the limiting protrusion is used to abut against the lower side wall of the flange.

[0012] Optionally, the second sealing block includes a fixing block and a sealing gasket;

[0013] The fixing block is installed on the incubation module and is arranged close to the incubation position, and the sealing gasket is arranged on the side of the fixing block facing the incubation position;

[0014] The sealing gasket is formed with the sealing surface.

[0015] Optionally, the sealing block is formed with a matching protrusion;

[0016] The matching protrusion has a matching groove, and the matching groove can be combined with the notch to form a sealing ring portion, and the sealing ring portion is used to seal the outer peripheral wall of the container.

[0017] Optionally, the anti-evaporation device further comprises an adjusting block and a locking member, one of the adjusting block and the first sealing block is provided with a matching portion, and the other of the adjusting block and the first sealing block is provided with an adjusting hole;

[0018] The first sealing block is movably arranged on the adjusting block, and the matching portion is protruded in the adjusting hole and can be locked with the locking member at any position in the adjusting hole.

[0019] Optionally, one of the adjusting block and the first sealing block is provided with at least two matching portions, the adjusting block or the other of the first sealing block is provided with at least two adjusting holes, and the anti-evaporation device includes at least two locking members;

[0020] The adjusting hole, the matching portion and the locking member correspond to each other one by one.

[0021] Optionally, the first sealing block is formed with at least two accommodating grooves, and the accommodating grooves are arranged at intervals.

[0022] Optionally, the lower end surface of the first sealing block is used to abut against the incubation module, and the material of the first sealing block is copper.

[0023] Optionally, the driving device is a screw motor;

[0024] The screw motor is arranged on the support, and the output shaft of the screw motor is connected to the first sealing block.

[0025] The utility model also provides a coagulation analyzer, comprising:

[0026] Machine base;

[0027] An incubation module, disposed on the machine base, wherein the incubation module is formed with a plurality of incubation positions for placing containers and is used for heating the containers in the incubation positions in a water bath;

[0028] In the above-mentioned anti-evaporation device, the support of the anti-evaporation device and the base are an integrally formed structure.

[0029] In the technical solution of the utility model, the first sealing block is driven by a driving device to move toward the incubation module and abut against the sealing surface of the second sealing block. As the first sealing block moves, the container gradually enters the receiving groove from the material port. When the first sealing block abuts against the sealing surface, the container port of the container is received in the receiving groove and covered with the bottom wall of the receiving groove facing the support. The sample vapor generated during the sample incubation process will gather at the container port and tend to escape upward. The sample vapor is covered by the bottom wall of the receiving groove and the escape of the sample vapor is limited by the sealing surface and the surrounding wall of the receiving groove. As the sample in the container evaporates, the water vapor content in the container and at the container port will gradually increase, thereby inhibiting the sample in the container from continuing to volatilize, preventing a large amount of sample evaporation, reducing the sample evaporation amount in the container, and improving the accuracy of the test results. The above-mentioned measures to reduce the sample evaporation amount do not require continuous investment in additional consumables, and after the incubation is completed, the first sealing block is driven to reset by the driving device, and the subsequent detection process can be directly carried out through the coagulation analyzer, avoiding the cumbersome sample transfer process, and also avoiding the cost of additional incubation devices and devices for transferring samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic structural diagram of an embodiment of the anti-evaporation device provided by the utility model;

[0032] Figure 2 for Figure 1 A partial structural schematic diagram of an embodiment of the invention;

[0033] Figure 3 A schematic structural diagram of an embodiment of a coagulation analyzer provided by the utility model in a first state;

[0034] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0035] Figure 5 for Figure 3 Schematic diagram of the structure of the embodiment in the second state.

[0036] Description of Figure Numbers:

[0037] Label name Label name 1000 Coagulation Analyzer 25 Avoidance slot 100 Machine base 26 Limiting convex part 200 Incubation module 3 Second sealing block 201 Incubation position 31 Fixed block 300 Anti-evaporation device 32 Gasket 1 Support 321 Sealing surface 2 The first sealing block 4 Drive device 21 Receiving slot 4a Screw motor 22 Feeding port 5 Adjustment block 23 notch b container 24 Adjustment hole b1 Flange

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0042] The utility model proposes an anti-evaporation device 300, Figures 1 to 5 This is an embodiment of the present utility model.

[0043] In the embodiment of the present utility model, the anti-evaporation device 300 is as follows: Figures 1 to 5 As shown, the anti-evaporation device 300 is applied to a coagulation analyzer 1000, and the coagulation analyzer 1000 has an incubation module 200, and the incubation module 200 is formed with a plurality of incubation positions 201 for positioning and heating the container b, and the anti-evaporation device 300 includes a support 1, a first sealing block 2, a second sealing block 3 and a driving device 4, the first sealing block 2 is arranged on the support 1 and is movably connected to the support 1, the first sealing block 2 is provided with a receiving groove 21 with a notch 23 downward and a receiving groove 21 connected to the receiving groove 21 and A material port 22 for the container b to enter, the bottom wall of the accommodating groove 21 facing the support 1 is used to cover the container port of the container b, the second sealing block 3 is arranged on the incubation module 200 and forms a sealing surface 321 facing the incubation position 201, and the sealing surface 321 is opposite to the material port 22, and the driving device 4 is arranged on the support 1, and the driving device 4 is connected to the first sealing block 2 and can drive the first sealing block 2 to reciprocate so that the material port 22 abuts against or disengages from the sealing surface 321.

[0044] In the technical solution of the present invention, the first sealing block 2 is driven by the driving device 4 to move toward the incubation module 200 and abut against the sealing surface 321 of the second sealing block 3. As the first sealing block 2 moves, the container b gradually enters the receiving groove 21 from the material port 22. When the first sealing block 2 abuts against the sealing surface 321, the container port of the container b is received in the receiving groove 21 and covered with the bottom wall of the receiving groove 21 facing the support 1. The sample vapor generated during the sample incubation process will gather at the container port and tend to dissipate upward, and will be covered by the bottom wall of the receiving groove 21 and the sealing surface 321 and the surrounding of the receiving groove 21. The wall limits the escape of sample vapor. As the sample in container b evaporates, the water vapor content in container b and at the container mouth will gradually increase, thereby inhibiting the sample in container b from continuing to volatilize, preventing a large amount of sample evaporation, reducing the evaporation amount of the sample in container b, and improving the accuracy of the test results. The above-mentioned measures to reduce the evaporation amount of the sample do not require continuous investment in additional consumables, and after the incubation is completed, the first sealing block 2 is driven to reset by the driving device 4, and the subsequent detection process can be directly carried out through the coagulation analyzer 1000, avoiding the cumbersome sample transfer process, and also avoiding the cost of additional incubation devices and devices for transferring samples.

[0045] Figure 3 The positional relationship of each structure before or after the incubation is completed when the first sealing block 2 and the second sealing block 3 are in a non-contact state; Figure 5 The first sealing block 2 and the second sealing block 3 are in abutting and sealing state, correspondingly, they are in the incubation process.

[0046] Among them, combined Figure 2 It should also be noted that the material port 22 is connected to the slot 23, and the connecting portion is used to prevent the container b from entering the containing slot 21 from the material port 22 to prevent obstruction and interference to the container b. The sample vapor is generally water vapor, but may also contain other reagent components that evaporate together with water.

[0047] In order to facilitate the clamping and transfer of the container b by the experimental equipment, a flange b1 is generally provided on the periphery of the container mouth. In order to avoid the flange b1 and limit the position of the container b, in one embodiment, Figure 2 and Figure 4The limiting protrusion 26 is spaced apart from the bottom wall of the accommodating groove 21 and an avoidance groove 25 is formed between the limiting protrusion 26 and the bottom wall of the accommodating groove 21, the avoidance groove 25 is connected to the material port 22 and is used to accommodate the flange b1, that is, through the specific setting of the first limiting block, it can adapt to the flange b1 of the container b, the upper side wall of the limiting protrusion 26 is used to abut against the lower side wall of the flange b1, because generally speaking, it is difficult to ensure that the size of the avoidance groove 25 is completely compatible with the size of the container b, and usually there is a certain size gap. In actual operation, the upper side wall of the limiting protrusion 26 will slightly lift the container b upward, so that the upper side wall of the limiting protrusion 26 abuts against the lower side wall of the flange b1, and reduces the amount of sample vapor escaping downward, thereby improving the anti-evaporation effect.

[0048] In order to specifically form the sealing surface 321 and ensure the sealing effect of the second sealing block 3 on the material port 22, in one embodiment, Figure 1 The second sealing block 3 includes a fixed block 31 and a sealing gasket 32. The fixed block 31 is installed on the incubation module 200 and is arranged close to the incubation position 201. The sealing gasket 32 ​​is arranged on the side of the fixed block 31 facing the incubation position 201. The sealing gasket 32 ​​is formed with the sealing surface 321. When the first sealing block 2 moves to abut against the second sealing block 3, the material port 22 will actually abut against the sealing gasket 32. The first sealing block 2 will compress the sealing gasket 32 ​​to a certain extent, thereby sealing the material port 22 through the sealing gasket 32. The sealing gasket 32 ​​can be made of a material that can achieve sealing, such as silicone.

[0049] To improve the anti-evaporation effect, in one embodiment, the second sealing block 3 is formed with a matching protrusion, and the matching protrusion has a matching groove, and the matching groove can be enclosed with the notch 23 to form a sealing ring portion, and the sealing ring portion is used to seal the outer peripheral wall of the container b. Due to the shape characteristics of the outer wall of the container b, when only the first sealing block 2 is set, even if the material port 22 is sealed by the second sealing block 3 and the shape of the notch 23 of the first sealing block 2 is designed to fit the outer wall of the container b as much as possible, the outer wall of the container b facing the material port 22 is difficult to fit or seal. Therefore, by adding the sealing ring portion formed by the matching protrusion and the first sealing block 2, the overall outer contour of the container b can be fitted, the notch 23 can be partially blocked or sealed, and the escape of sample vapor can be reduced. Among them, the sealing ring portion is designed to fit the outer contour of the container b. Considering that the outer contour of the container b is generally circular, the shape of the matching groove is an arc. In actual use, the shapes of the matching groove and the notch 23 can be specifically adjusted according to the outer contour of the container b.

[0050] In order to achieve the alignment of the material port 22 and the sealing surface 321, in one embodiment, the anti-evaporation device 300 also includes an adjusting block 5 and a locking piece, and one of the adjusting block 5 and the first sealing block 2 is provided with a matching portion, and the other of the adjusting block 5 and the first sealing block 2 is provided with an adjustment hole 24; the first sealing block 2 is movably arranged on the adjusting block 5, and the matching portion is protruding in the adjusting hole 24 and can be locked with the locking piece at any position in the adjusting hole 24, and has an adjustment margin. After loosening the fit between the locking piece and the matching portion, the first sealing block 2 can be moved to align with the sealing surface 321 of the second sealing block 3. After the adjustment is completed, the locking piece and the matching portion can be re-matched and locked.

[0051] Generally speaking, the adjustment hole 24 has only a single linear adjustment margin, that is, the first sealing block 2 can be adjusted along a single linear direction. However, in actual operation, the first sealing block 2 may rotate, causing the relative angle between the material port 22 and the sealing surface 321 to change, affecting the sealing. To avoid this problem, in one embodiment, Figure 1 , one of the adjustment block 5 and the first sealing block 2 is provided with at least two matching parts, the adjustment block 5 and the first sealing block 2 are provided with at least two adjustment holes 24, and the anti-evaporation device 300 includes at least two locking pieces; the adjustment holes 24, the matching parts and the locking pieces correspond to each other, and the first sealing block 2 is adjusted in the same direction in at least two adjustment holes 24 at the same time. Due to the restriction of the adjustment holes 24 on other directions, at least two adjustment holes 24 can avoid the occurrence of rotation, ensuring that the plane where the material port 22 is located and the sealing surface 321 are continuously in a parallel state during the adjustment process. In this embodiment, in order to avoid excessive complexity in structure, two matching parts, two adjustment holes 24 and two locking pieces are each provided.

[0052] In order to reduce the evaporation of samples in two or more containers b at the same time, in one embodiment, Figures 2 to 5, the first sealing block 2 is formed with at least two of the receiving grooves 21, and the size of the sealing surface 321 of the second sealing block 3 is correspondingly made to correspond to the first sealing block 2, so that the effect of reducing the evaporation of samples of at least two or more containers b can be achieved at the same time; in this embodiment, the receiving grooves 21 are spaced from each other, that is, the spatial communication between the receiving grooves 21 is blocked, which enables the first sealing block 2 to more flexibly cope with the change in the number of containers b. For example, when the first sealing block 2 is provided with three of the receiving grooves 21, but only two containers b need to be incubated in this group of experiments, at this time, each of the receiving grooves 21 can be used to act on the container b separately, and there will be no situation where the sample vapor in other receiving grooves 21 in use escapes from the idle receiving grooves 21 due to the communication between the idle receiving grooves 21 and other receiving grooves 21, thereby making the application of the anti-evaporation device 300 more flexible and adaptable to the incubation of more different numbers of samples.

[0053] In order to further improve the anti-evaporation effect of the anti-evaporation device 300, in one embodiment, the lower end surface of the first sealing block 2 will abut against the incubation module 200 when it moves to the position of the incubation module 200, and the temperature of the incubation module 200 will be consistent with the temperature of the water bath heating under the influence of its own heating module. Through the contact between the first sealing block 2 and the incubation module 200 and the first sealing block 2 is made of copper, after the first sealing block 2 contacts the incubation module 200, the temperature will rapidly rise to the same as that of the incubation module 200. Then, during the sample incubation process, since the temperature around the container mouth is consistent with the water bath temperature, water vapor condensation can be prevented or the condensation rate can be reduced, thereby preventing the water vapor content in the space from decreasing or reducing the rate of decrease of the water vapor content, ensuring that the water vapor content in the space is at a high level, thereby improving its effect of inhibiting the evaporation of the sample.

[0054] In order to specifically drive the first sealing block 2 to reciprocate, in one embodiment, the driving device 4 is a screw motor 4a, the screw motor 4a is arranged on the support 1, and the output shaft of the screw motor 4a is connected to the first sealing block 2. Specifically, the first sealing block 2 is threadedly connected to the output shaft. According to the different rotation directions of the screw motor 4a, the movement direction of the first sealing block 2 is different. Compared with the solution of using a rotating motor of the same size with a pulley, the screw motor 4a generates a greater thrust, which can tightly support the silicone to achieve sealing, and during the incubation time of several hours, it only needs to provide a small current to the motor to make it stable and not loose, so it will not cause heat and reduce life due to long-term power supply of large current to the motor. Among them, the driving device 4 can also be a linear motor.

[0055] The utility model also proposes a coagulation analyzer 1000, which includes a base, an incubation module 200 and the anti-evaporation device 300. The incubation module 200 is arranged on the base 100. The incubation module 200 is formed with a plurality of incubation positions 201 for accommodating containers b and is used to perform water bath heating on the containers b in the incubation positions 201. The support 1 of the anti-evaporation device 300 and the base 100 are an integrally formed structure. The support 1 of the anti-evaporation device 300 and the base 100 are integrated to reduce the total processing steps and further reduce the production cost. The specific structure of the anti-evaporation device 300 refers to the above embodiment. Since the coagulation analyzer 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0056] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An anti-evaporation device, applied to a coagulation analyzer, wherein the coagulation analyzer has an incubation module, wherein the incubation module is formed with a plurality of incubation positions for positioning and heating containers, characterized in that: The anti-evaporation device comprises: Support; a first sealing block, the first sealing block being arranged on the support and movably connected to the support, the first sealing block being provided with a receiving groove with a notch downward and a material opening communicating with the receiving groove and allowing the container to enter, the bottom wall of the receiving groove facing the support being used to cover the container opening of the container; a second sealing block, the second sealing block being used to be disposed in the incubation module and forming a sealing surface facing the incubation position, the sealing surface being opposite to the material port; and A driving device is arranged on the support, the driving device is connected to the first sealing block and can drive the first sealing block to reciprocate so that the material port abuts against or separates from the sealing surface.

2. The anti-evaporation device according to claim 1, characterized in that: A flange is formed on the outer periphery of the container mouth of the container, and a peripheral wall portion of the receiving groove protrudes to form a limited position convex portion; The limiting protrusion is spaced apart from the bottom wall of the accommodating groove and an avoidance groove is formed between the limiting protrusion and the bottom wall of the accommodating groove. The avoidance groove is connected to the material port and is used to accommodate the flange. The upper side wall of the limiting protrusion is used to abut against the lower side wall of the flange.

3. The anti-evaporation device according to claim 1, characterized in that: The second sealing block includes a fixing block and a sealing gasket; The fixing block is installed on the incubation module and is arranged close to the incubation position, and the sealing gasket is arranged on the side of the fixing block facing the incubation position; The sealing gasket is formed with the sealing surface.

4. The anti-evaporation device according to claim 1, characterized in that: The second sealing block is formed with a matching protrusion; The matching protrusion has a matching groove, and the matching groove can be combined with the notch to form a sealing ring portion, and the sealing ring portion is used to seal the outer peripheral wall of the container.

5. The anti-evaporation device according to any one of claims 1 to 4, characterized in that: The anti-evaporation device further comprises an adjustment block and a locking member, one of the adjustment block and the first sealing block is provided with a matching portion, and the other of the adjustment block and the first sealing block is provided with an adjustment hole; The first sealing block is movably arranged on the adjusting block, and the matching portion is protruded in the adjusting hole and can be locked with the locking member at any position in the adjusting hole.

6. The anti-evaporation device according to claim 5, characterized in that: One of the adjusting block and the first sealing block is provided with at least two matching parts, the adjusting block and the other of the first sealing block are provided with at least two adjusting holes, and the anti-evaporation device includes at least two locking members; The adjusting hole, the matching portion and the locking member correspond to each other one by one.

7. The anti-evaporation device according to any one of claims 1 to 4, characterized in that: The first sealing block is formed with at least two accommodating grooves, and the accommodating grooves are arranged at intervals.

8. The anti-evaporation device according to any one of claims 1 to 4, characterized in that: The lower end surface of the first sealing block is used to abut against the incubation module, and the material of the first sealing block is copper.

9. The anti-evaporation device according to any one of claims 1 to 4, characterized in that: The driving device is a screw motor; The screw motor is arranged on the support, and the output shaft of the screw motor is connected to the first sealing block.

10. A coagulation analyzer, characterized in that: include: Machine base; An incubation module, disposed on the machine base, wherein the incubation module is formed with a plurality of incubation positions for placing containers and is used for heating the containers in the incubation positions in a water bath; The anti-evaporation device according to any one of claims 1 to 9, wherein the support of the anti-evaporation device and the base are an integrally formed structure.

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