In vitro diagnostic device

Abstract

The utility model discloses in-vitro diagnostic equipment which comprises an incubation tray, a reagent tray, a temperature control device and a conduction component, the reagent plates are separately arranged on the incubation plate; the temperature control device comprises a first assembly and a second assembly which are connected, the first assembly and the second assembly are respectively provided with a refrigerating surface and a heating surface which are oppositely arranged, the refrigerating surface of the first assembly is connected to the reagent tray, and the heating surface of the second assembly is connected to the incubation tray; the conduction assembly is provided with a first end and a second end which are opposite, the conduction assembly is provided with a hollow structure, the hollow structure conducts the first end and the second end, the first end is connected to the heating face of the first assembly, and the second end is connected to the refrigerating face of the second assembly. According to the in-vitro diagnosis equipment, energy generated by the temperature control device can be effectively utilized, and the working efficiency of the temperature control device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of medical instruments, and in particular to an in vitro diagnostic device. Background Technology

[0002] In vitro diagnostic equipment includes a reagent tray and an incubation tray. During operation, the reagent tray needs to be cooled and the incubation tray needs to be heated to ensure the test results of the sample.

[0003] In related technologies, temperature control devices are installed in both the reagent tray and the incubation tray to control their temperatures. During the cooling of the reagent tray and the heating of the incubation tray, the temperature control devices generate energy (such as heat and cold), but this energy is released into the atmosphere, resulting in energy waste. Furthermore, the energy release causes changes in the ambient temperature around the reagent tray and incubation tray, affecting the heat dissipation of the temperature control devices and reducing the temperature control efficiency of the incubation tray and reagent tray. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an in vitro diagnostic device that can effectively utilize the energy generated by a temperature control device, thereby improving the working efficiency of the temperature control device.

[0005] An in vitro diagnostic device according to a first aspect of the present invention includes an incubation tray, a reagent tray, a temperature control device, and a conductive component.

[0006] A reagent tray is separated from the incubation tray; the temperature control device includes a first component and a second component connected to each other, the first component and the second component each having a cooling surface and a heating surface arranged opposite to each other, the cooling surface of the first component being connected to the reagent tray, and the heating surface of the second component being connected to the incubation tray; a conductive component has a first end and a second end opposite to each other, the conductive component having a hollow structure, the hollow structure conducting the first end and the second end, the first end being connected to the heating surface of the first component, and the second end being connected to the cooling surface of the second component.

[0007] The in vitro diagnostic device according to this utility model embodiment has at least the following beneficial effects: The first component provides a cooling effect to the reagent tray, and the second component provides a heating effect to the incubation tray, ensuring the sample detection results. Simultaneously, the heating surface of the first component and the cooling surface of the second component are connected by a conductive component, allowing the heat generated by the first component and the cold generated by the second component to be neutralized through the conductive component. This enables the energy generated by the first and second components to be effectively utilized, improving the working efficiency of the temperature control device and enhancing the temperature control efficiency of the incubation tray and reagent tray.

[0008] According to some embodiments of the present invention, the conductive component includes a first connecting member and a second connecting member that are connected to each other. The first connecting member is connected to the heating surface of the first component, and the second connecting member is connected to the cooling surface of the second component. The first end is disposed on the first connecting member, and the second end is disposed on the second connecting member.

[0009] According to some embodiments of the present invention, the interiors of the first connecting member and the second connecting member define a through cavity, wherein, along a first direction, the through cavity forms a first opening on the side of the first connecting member opposite to the second connecting member, and forms a second opening on the side of the second connecting member opposite to the first connecting member;

[0010] The in vitro diagnostic device also includes a fan, and the first opening and the second opening are respectively connected to the fan.

[0011] According to some embodiments of the present invention, the first connecting member and the second connecting member define a conductive cavity inside, the conductive component further includes an air duct, the air duct defines a channel inside, the air duct is connected to the first connecting member and the second connecting member, and the conductive cavity of the first connecting member and the second connecting member is connected through the channel, the hollow structure includes the conductive cavity and the channel.

[0012] According to some embodiments of the present invention, a fixing member is also included. The fixing member is provided at the connection between the air duct and the first connecting member and the second connecting member. The fixing member has a through hole that communicates with the guiding cavity, and at least a portion of the air duct is accommodated in the through hole.

[0013] According to some embodiments of the present invention, along the second direction, the setting height of the first end is less than the setting height of the second end.

[0014] According to some embodiments of this utility model, along the second direction, the conductive component is provided with a connecting hole on one side facing the first component and the second component respectively, and the connecting hole communicates with the hollow structure; wherein, the heating surface of the first component and the cooling surface of the second component are accommodated in the connecting hole; or,

[0015] The heating surface of the first component and the cooling surface of the second component abut against the outer wall of the conductive component, which is made of a thermally conductive material.

[0016] According to some embodiments of the present invention, the conductive component includes a plurality of extensions, the extensions being formed by extending from the inner wall of the conductive component along a third direction, the extensions being disposed in the hollow structure and extending along a first direction to the first end and the second end, and the plurality of extensions being spaced apart along a second direction.

[0017] According to some embodiments of the present invention, both the incubation tray and the reagent tray have a detection cavity defined inside. The detection cavity is used to hold the detection sample. The bottom of the incubation tray and the reagent tray are respectively recessed towards the detection cavity along a second direction to form a groove. The first component and the second component are accommodated in the groove.

[0018] According to some embodiments of the present invention, the in vitro diagnostic device further includes a conductive layer, wherein: the conductive layer is provided between the cooling surface of the first component and the reagent tray, and the conductive layer is provided between the heating surface of the second component and the incubation tray; and / or, the conductive layer is provided between the first end and the heating surface of the first component, and the conductive layer is provided between the second end and the cooling surface of the second component.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the in vitro diagnostic device in an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the in vitro diagnostic device in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the temperature control device in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the conductive component in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the connecting member in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the in vitro diagnostic device in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the incubation tray and reagent tray in an embodiment of this utility model.

[0028] Figure Labels

[0029] 100 in vitro diagnostic devices;

[0030] Incubation tray 110; reagent tray 111; detection chamber 115; groove 116;

[0031] Temperature control device 120; first component 121; second component 122; cooling surface 123; heating surface 124;

[0032] Conductive component 130; first connecting member 131; first end 1311; first opening 1312; second connecting member 132; second end 1321; second opening 1322; hollow structure 133; conductive cavity 134; air duct 135; connecting hole 136; extension 137;

[0033] Fan 140; Mounting component 150; Through hole 151; Conductive layer 160. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.

[0036] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The in vitro diagnostic device according to a first aspect of the present invention will now be described with reference to the accompanying drawings. The in vitro diagnostic device is a device for testing human samples (such as blood, body fluids, tissues, etc.) to obtain clinical diagnostic information, thereby determining diseases or bodily functions. It should be noted that, for ease of description and understanding, in this specification, the left-right direction is designated as the first direction, the up-down direction as the second direction, and the front-back direction as the third direction.

[0040] This utility model embodiment provides an in vitro diagnostic device 100, see reference. Figures 1 to 4As shown, the in vitro diagnostic device 100 includes an incubation tray 110, a reagent tray 111, a temperature control device 120, and a conductive assembly 130. The incubation tray 110 and reagent tray 111 are used for sample testing. When the incubation tray 110 and reagent tray 111 are used for testing, the reagent tray 111 needs to be cooled and the incubation tray 110 needs to be heated to ensure the sample testing results. The reagent tray 111 and incubation tray 110 are separated. The temperature control device 120 includes a first component 121 and a second component 122, which are connected by the conductive assembly 130. Both the first component 121 and the second component 122 have a cooling surface 123 and a heating surface 124 arranged opposite to each other. The cooling surface 123 of the first component 121 is connected to the reagent tray 111 to cool it, and the heating surface 124 of the second component 122 is connected to the incubation tray 110 to heat it. The conductive component 130 has a first end 1311 and a second end 1321. The first end 1311 is a portion of the conductive component 130 connecting to the first component 121, and the second end 1321 is a portion of the conductive component 130 connecting to the second component 122. In this embodiment, the first end 1311 and the second end 1321 are the sidewalls at both ends of the conductive component 130. In other embodiments, the first end 1311 and the second end 1321 are the ends of the conductive component 130. The conductive component 130 has a hollow structure 133 inside, which conducts the first end 1311 and the second end 1321. The first end 1311 is connected to the heating surface 124 of the first component 121, and the second end 1321 is connected to the cooling surface 123 of the second component 122, so that the heat generated by the heating surface 124 of the first component 121 can be neutralized by the cooling energy generated by the cooling surface 123 of the second component 122 through the conductive component 130.

[0041] Specifically, in one example, the first component 121 and the second component 122 of the temperature control device 120 employ semiconductors for cooling and heating. Semiconductor cooling and heating utilizes direct current passing through an electric couple formed by two different semiconductor materials. The two ends of the electric couple absorb and release heat respectively, allowing the first component 121 and the second component 122 to simultaneously cool and heat during operation. When the first component 121 and the second component 122 begin operating, the cooling surface 123 of the first component 121 provides cooling to the reagent tray 111, while the heating surface 124 of the second component 122 provides heat to the incubation tray 110. Simultaneously, the heating surface 124 of the first component 121 generates heat, and the cooling surface 123 of the second component 122 generates cooling. At this time, the heating surface 124 of the first component 121 and the cooling surface 123 of the second component 122 are connected by the conductive component 130, so that the heat generated by the first component 121 and the cold generated by the second component 122 are discharged into the hollow structure 133 of the conductive component 130, so that the heat and cold are neutralized in the hollow structure 133, thereby effectively utilizing the energy generated by the temperature control device 120 and improving the temperature control efficiency of the incubation tray 110 and the reagent tray 111.

[0042] The in vitro diagnostic device 100 of this embodiment provides cooling to the reagent tray 111 via a first component 121 and heating to the incubation tray 110 via a second component 122, ensuring sample detection results. Simultaneously, a conductive component 130 connects the heating surface 124 of the first component 121 and the cooling surface 123 of the second component 122, allowing the heat generated by the first component 121 and the cold generated by the second component 122 to be neutralized. This ensures efficient utilization of the energy generated by the first and second components, preventing energy waste from being released into the atmosphere. Furthermore, it avoids the situation where releasing the heat from the first component 121 and the cold generated by the second component 122 into the atmosphere would cause the ambient temperature around the reagent tray 111 to rise, affecting its cooling, or cause the ambient temperature around the incubation tray 110 to drop, affecting its heating.

[0043] In some embodiments, see Figure 1 , Figure 2 and Figure 4As shown, the conductive component 130 includes a first connecting member 131 and a second connecting member 132, wherein the interiors of the first connecting member 131 and the second connecting member 132 are connected. The first connecting member 131 is connected to the heating surface 124 of the first component 121, and the second connecting member 132 is connected to the cooling surface 123 of the second component 122. A first end 1311 is disposed in the first connecting member 131, and a second end 1321 is disposed in the second connecting member 132. The energy generated by the first component 121 and the second connecting member 132 can be conducted through the first connecting member 131 and the second connecting member 132, so that the heat generated by the first component 121 and the cold generated by the second component 122 are conducted to the hollow structure 133 for neutralization. Meanwhile, the first connecting member 131 and the second connecting member 132 can realize the energy conduction between the first component 121 and the second component 122, avoiding energy loss. Furthermore, the first connecting member 131 and the second connecting member 132 can absorb some energy, reducing the impact of energy emission on the ambient temperature changes around the reagent tray 111 and the incubation tray 110, promoting energy conduction between the first component 121 and the second component 122, reducing heat emission from the temperature control device 120, and reducing the energy consumption of the temperature control device 120.

[0044] Further, see Figure 2 and Figure 4 As shown, both the interior of the first connecting member 131 and the interior of the second connecting member 132 define a conductive cavity 134, which is part of the hollow structure 133. The conductive cavity 134, along a first direction, connects to the side of the first connecting member 131 opposite to the second connecting member 132, forming a first opening 1312, and connects to the side of the second connecting member 132 opposite to the first connecting member 131, forming a second opening 1322. That is, one end of the first connecting member 131 is connected to one end of the second connecting member 132, making the conductive cavities 134 of the first connecting member 131 and the second connecting member 132 interconnected. The other ends of the first connecting member 131 and the second connecting member 132 are connected by the conductive cavity 134, forming openings. The in vitro diagnostic device 100 also includes a fan 140, with the first opening 1312 and the second opening 1322 respectively connected to the fan 140. The fan 140 is used to blow air into the interior of the conductive cavity 134 through the first opening 1312 and the second opening 1322. When the heat generated by the first component 121 and the cold generated by the second component 122 are conducted to the hollow structure 133 of the conductive component 130, the fan 140 can accelerate the air flow inside the hollow structure 133, thereby promoting the combination of heat and cold and improving the working efficiency of the first component 121 and the second component 122.

[0045] Further, see Figures 1 to 4As shown, the conductive component 130 also includes an air duct 135, the interior of which defines a channel for conducting gas. In this embodiment, the interiors of the first connecting member 131 and the second connecting member 132 define a conductive cavity 134, which is connected to the channel of the air duct 135. The hollow structure 133 includes the conductive cavity 134 and the channel. When the heat from the first component 121 enters the conductive cavity 134 of the first connecting member 131 and the cold energy from the second component 122 enters the conductive cavity 134 of the second connecting member 132, the heat and cold energy will flow into the channel of the air duct 135 for neutralization. Since the heights of the incubation tray 110 and the reagent tray 111 are not exactly equal when using the in vitro diagnostic device 100, the air duct 135 is a deformable structure, such as a corrugated pipe. By using the air duct 135, even when the height positions of the incubation tray 110 and the reagent tray 111 are different, the conductive cavity 134 of the first connecting member 131 and the conductive cavity 134 of the second connecting member 132 can still be connected, so that the incubation tray 110 and the reagent tray 111 can be tested normally, thus improving the universality of the in vitro diagnostic equipment 100.

[0046] Further, see Figures 1 to 4 As shown, the in vitro diagnostic device 100 also includes a fixing member 150, wherein the first connecting member 131 and the second connecting member 132 are connected by an air duct 135. The fixing member 150 is provided at the connection points of the air duct 135 and the first connecting member 131, and at the connection points of the air duct 135 and the second connecting member 132. The fixing member 150 has a through hole 151, which penetrates the fixing member 150 and connects to the conductive cavity 134. When the air duct 135 is connected to the conductive cavity 134, at least a portion of the air duct 135 is accommodated in the through hole 151 and fixed thereto, thereby connecting to the hollow structure 133 of the conductive assembly 130. When the in vitro diagnostic device 100 is working, gas flows through the air duct 135 to promote the cooling and cooling of the first component 121 and the second component 122. The fastener 150 clamps and secures the first component 121 and the air duct 135, as well as the second component 122 and the air duct 135, preventing the air duct 135 from detaching from the first component 121 or the second component 122 due to gas flow. In this embodiment, the fastener 150 secures the air duct 135, the first component 121, and the second component 122 via a threaded connection. In other embodiments, the fastener 150 can also secure the air duct 135, the first component 121, and the second component 122 via a snap-fit ​​connection, a pin connection, or an adhesive connection.

[0047] In some embodiments, see Figure 1 and Figure 4As shown, in the second direction, the height of the first end 1311 is less than the height of the second end 1321. Specifically, there is a height difference between the first end 1311 and the second end 1321 in the second direction, with the first end 1311 positioned lower than the second end 1321. Since the first end 1311 is the heating surface 124 connecting the first component 121, the energy to be conducted by the first end 1311 is heat, and the second end 1321 is the cooling surface 123 connecting the second component 122, the energy to be conducted by the second end 1321 is cold. Under standard atmospheric pressure, the density of cold is greater than that of heat; cold sinks, and heat rises. Therefore, by making the height of the first end 1311 less than the height of the second end 1321, the flow of cold and heat can be accelerated, promoting the neutralization of cold and heat, and improving the temperature control efficiency of the temperature control device 120.

[0048] In some embodiments, see Figure 4 and Figure 5 As shown, Figure 5 The diagram shows one of the connecting members in the conductive assembly 130. This connecting member can be either the first connecting member 131 or the second connecting member 132. The conductive assembly 130 has connecting holes 136 along a second direction, located on the side of the conductive assembly 130 facing the first component 121 and the second component 122. The number of connecting holes 136 matches the number of the first component 121 and the second component 122; that is, in this embodiment, both the first connecting member 131 and the second connecting member 132 have connecting holes 136, with the number of connecting holes 136 on the first connecting member 131 matching the number of the first component 121, and the number of connecting holes 136 on the second connecting member 132 matching the number of the second component 122. The connecting holes 136 connect to the hollow structure 133 of the conductive assembly 130. When the first end 1311 is connected to the heating surface 124 of the first component 121 and the second end 1321 is connected to the cooling surface 123 of the second component 122, the heating surface 124 of the first component 121 and the cooling surface 123 of the second component 122 will be accommodated in the connection hole 136 to conduct energy to the hollow structure 133.

[0049] In another embodiment, the conductive component 130 does not have a connection hole 136. The conductive component 130 is made of a thermally conductive material. When the first end 1311 is connected to the heating surface 124 of the first component 121 and the second end 1321 is connected to the cooling surface 123 of the second component 122, the heating surface 124 of the first component 121 and the cooling surface 123 of the second component 122 abut against the outer wall of the conductive component 130, and the first component 121 and the second component 122 conduct energy through the conductive component 130.

[0050] Furthermore, the conductive component 130 includes an extension 137 disposed within the hollow structure 133. Specifically, in one example, see [reference needed]. Figure 5 As shown, the extension 137 is formed by the inner wall of the hollow structure 133 of the conductive component 130 extending upward in a third direction, that is, the front and rear side walls of the conductive component 130 extend into the hollow structure 133 to form the extension 137. Simultaneously, the extension 137 extends to the first end 1311 and the second end 1321 in a first direction. Furthermore, there are multiple extensions 137, which are spaced apart along a second direction. The extensions 137 can increase the heat transfer area of ​​the conductive component 130, improve the heat exchange effect of the conductive component 130, thereby increasing the energy conduction rate in the hollow structure 133 and improving the heat neutralization effect of the first component 121 and the second component 122.

[0051] In some embodiments, see Figure 6 and Figure 7 As shown, both the incubation tray 110 and the reagent tray 111 have a detection cavity 115 defined inside. The detection cavity 115 is used to hold the test sample so that the incubation tray 110 and the reagent tray 111 can test the sample. The bottom of the incubation tray 110 and the reagent tray 111 are recessed in the second direction towards the detection cavity 115 to form a groove 116. When the reagent tray 111 is connected to the first component 121 and the incubation tray 110 is connected to the second component 122, the first component 121 will be accommodated in the groove 116 of the reagent tray 111, and the second component 122 will be accommodated in the groove 116 of the incubation tray 110. The groove 116 can form a circumferential positioning for the installation and fixation of the first component 121 and the second component 122, preventing the first component 121 and the second component 122 from moving. Meanwhile, the recessed direction of the groove 116 is towards the detection cavity 115, which can reduce the wall thickness between the first component 121 and the detection cavity 115 of the reagent tray 111, and reduce the wall thickness between the second component 122 and the detection cavity 115 of the incubation tray 110, thereby improving the energy conduction rate of the first component 121 and the second component 122, promoting the cooling effect of the first component 121 on the reagent tray 111, and the heating effect of the second component 122 on the incubation tray 110, and improving the temperature control efficiency of the first component 121 and the second component 122.

[0052] In some embodiments, see Figure 3 As shown, Figure 3 The diagram shown illustrates the connection between the conductive layer 160 and the temperature control device 120. Figure 3The components shown can be either the first component 121 or the second component 122. The in vitro diagnostic device 100 also includes a conductive layer 160, which facilitates energy conduction. The conductive layer 160 is disposed between the cooling surface 123 of the first component 121 and the reagent tray 111, and between the heating surface 124 of the second component 122 and the incubation tray 110. During connection, the bottom walls of the cooling surface 123 and the reagent tray 111 are tightly fitted with the conductive layer 160, and similarly, the bottom walls of the heating surface 124 and the incubation tray 110 are tightly fitted with the conductive layer 160, thereby increasing energy conduction efficiency, improving the cooling effect of the first component 121 on the reagent tray 111, and the heating effect of the second component 122 on the incubation tray 110, thus improving the detection efficiency of the in vitro diagnostic device 100.

[0053] In another embodiment, a conductive layer 160 is disposed between the first end 1311 and the heating surface 124 of the first component 121, and between the second end 1321 and the cooling surface 123 of the second component 122. The conductive layer 160 promotes heat conduction between the first end 1311 and the heating surface 124 of the first component 121, and promotes cold conduction between the second end 1321 and the cooling surface 123 of the second component 122, thereby improving the heat neutralization effect of the first component 121 and the second component 122, and improving the working efficiency of the temperature control device 120.

[0054] In other embodiments, the conductive layer 160 may also be disposed on the cooling surface 123 and the heating surface 124 of the first component 121, such that the first component 121 is connected to the reagent tray 111 and the first end 1311 on both sides along the first direction through the conductive layer 160, and disposed on the cooling surface 123 and the heating surface 124 of the second component 122, such that the second component 122 is connected to the incubation tray 110 and the second end 1321 on both sides along the first direction through the conductive layer 160.

[0055] In this embodiment, the conductive layer 160 is made of a thermally conductive silicone grease. In one example, the conductive layer 160 is specifically Honeywell thermally conductive silicone grease. In other embodiments, the conductive layer 160 may also be made of other materials such as thermally conductive silicone or thermally conductive graphite.

[0056] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An in vitro diagnostic device, characterized in that, include: Incubation tray; The reagent tray is arranged separately in the incubation tray; A temperature control device includes a first component and a second component connected to each other. The first component and the second component each have a cooling surface and a heating surface arranged opposite to each other. The cooling surface of the first component is connected to the reagent tray, and the heating surface of the second component is connected to the incubation tray. A conductive component has a first end and a second end opposite to each other. The conductive component has a hollow structure that conducts between the first end and the second end. The first end is connected to the heating surface of the first component, and the second end is connected to the cooling surface of the second component.

2. The in vitro diagnostic device according to claim 1, characterized in that, The conductive component includes a first connecting member and a second connecting member that are connected to each other. The first connecting member is connected to the heating surface of the first component, and the second connecting member is connected to the cooling surface of the second component. The first end is located on the first connecting member, and the second end is located on the second connecting member.

3. The in vitro diagnostic device according to claim 2, characterized in that, The first connecting member and the second connecting member internally define a conductive cavity, wherein, along a first direction, the conductive cavity conducts through a first opening formed on the side of the first connecting member opposite to the second connecting member, and conducts through a second opening formed on the side of the second connecting member opposite to the first connecting member; The in vitro diagnostic device also includes a fan, and the first opening and the second opening are respectively connected to the fan.

4. The in vitro diagnostic device according to claim 2, characterized in that, The first connecting member and the second connecting member define a through cavity inside. The through component also includes a duct pipe, which defines a channel inside. The duct pipe is connected to the first connecting member and the second connecting member, and the through cavities of the first connecting member and the second connecting member are connected through the channel. The hollow structure includes the through cavity and the channel.

5. The in vitro diagnostic device according to claim 4, characterized in that, It also includes fixing members, and the fixing members are respectively provided at the connection points of the air duct connecting the first connecting member and the second connecting member. The fixing members have through holes, the through holes are connected to the guiding cavity, and at least a portion of the air duct is accommodated in the through holes.

6. The in vitro diagnostic device according to claim 1, characterized in that, Along the second direction, the setting height of the first end is less than the setting height of the second end.

7. The in vitro diagnostic device according to claim 1, characterized in that, Along the second direction, the conductive component is provided with a connection hole on one side facing the first component and the second component, respectively, and the connection hole communicates with the hollow structure; wherein, the heating surface of the first component and the cooling surface of the second component are accommodated in the connection hole; or, The heating surface of the first component and the cooling surface of the second component abut against the outer wall of the conductive component, which is made of a thermally conductive material.

8. The in vitro diagnostic device according to claim 7, characterized in that, The conductive component includes multiple extensions, which are formed by extending from the inner wall of the conductive component along a third direction. The extensions are disposed in the hollow structure and extend to the first end and the second end along a first direction. The multiple extensions are spaced apart along a second direction.

9. The in vitro diagnostic device according to claim 1, characterized in that, Both the incubation tray and the reagent tray have a detection cavity inside, which is used to hold the detection sample. The bottom of the incubation tray and the reagent tray are respectively recessed towards the detection cavity along the second direction to form a groove, and the first component and the second component are accommodated in the groove.

10. The in vitro diagnostic device according to claim 1, characterized in that, The in vitro diagnostic device further includes a conductive layer, wherein: the conductive layer is provided between the cooling surface of the first component and the reagent tray, and the conductive layer is provided between the heating surface of the second component and the incubation tray; and / or, the conductive layer is provided between the first end and the heating surface of the first component, and the conductive layer is provided between the second end and the cooling surface of the second component.

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