In vitro diagnostic instrument and control method thereof

Abstract

The present invention discloses an in vitro diagnostic instrument and a control method thereof, wherein the in vitro diagnostic instrument comprises a card insertion device and a pressure valve device; the card insertion device has a plug-in slot for inserting a reagent card; the pressure valve device comprises at least one pressure valve component, each pressure valve component is movably arranged in the card insertion device, and the pressure valve component can extend into the plug-in slot to abut against the reagent card. The scheme provided by the in vitro diagnostic instrument and the control method thereof is that the pressure valve component is movably arranged in the card insertion device, and the pressure valve component can extend into the plug-in slot of the card insertion device to abut against the reagent card, so that when the pressure valve component moves relative to the card insertion device to extend into the plug-in slot, the pressure valve component can squeeze the covering film layer on the reagent card, and the covering film layer can fit the flow channel hole of the reagent card after being squeezed and deformed, and can block the flow channel of the reagent card to disconnect the connection, so that each pressure valve component can realize accurate control of the independent opening or disconnection of each flow channel, thereby realizing accurate control of the opening or disconnection of each flow channel.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and in particular to an in vitro diagnostic instrument and a control method thereof. Background Art

[0002] In the field of in vitro diagnostic testing technology, a reagent card is used to load the sample and reagent to be tested, and the sample is tested by placing the reagent card in an in vitro diagnostic testing and analysis instrument. When different blood sample tests are required, the reagent card is provided with different flow channels, and each flow channel can correspond to the detection of a blood sample of one project. However, traditional reagent cards are generally fixed inside in vitro diagnostic instruments for testing, and it is difficult to accurately control the opening or disconnection of each flow channel of the reagent card individually and accurately, which affects the detection efficiency and detection effect. Summary of the invention

[0003] The object of the present invention is to provide an in vitro diagnostic instrument to improve the disadvantages of the prior art that it is difficult to individually and accurately control the opening or disconnection of each flow channel of the reagent card during the detection process, which affects the detection efficiency and detection effect.

[0004] The technical solution is as follows:

[0005] An in vitro diagnostic instrument, comprising a card insertion device and a pressure valve device; the card insertion device has a plug-in slot for inserting a reagent card; the pressure valve device comprises at least one pressure valve component, each of which is movably arranged in the card insertion device, and the pressure valve component can extend into the plug-in slot to abut against the reagent card.

[0006] In one embodiment, the pressure valve device also includes a pressure valve body and at least one first driving device; the pressure valve body is at least partially placed in the plug-in slot, the pressure valve body is movably connected to the pressure valve member, the first driving device and the pressure valve member are arranged in a one-to-one correspondence, and each of the first driving devices can drive one of the pressure valve members to move relative to the pressure valve body until it extends into the plug-in slot.

[0007] In one of the embodiments, the output end of the first driving device is at least partially arranged opposite to the pressure valve member, and the output end of the first driving device can move to press against the pressure valve member.

[0008] In one embodiment, the pressure valve device also includes a first elastic member; the pressure valve member is provided with a blocking member, the first elastic member is arranged between the blocking member and the pressure valve body, and the force of the first elastic member acting on the pressure valve member is opposite to the force of the first driving device.

[0009] In one embodiment, the pressure valve body is provided with at least one penetrating connection hole, and each of the connection holes is arranged in an array structure in the pressure valve body; the connection holes are arranged one-to-one with the pressure valve components, and the pressure valve components are movably inserted into the connection holes.

[0010] In one of the embodiments, at least one sensing element for sensing liquid flow is further disposed at one end of the pressure valve body close to the plug-in slot, and the sensing element is embedded in the pressure valve body.

[0011] In one embodiment, the pressure valve device also includes a first heating device; the first heating device includes a first heating film and a first heat conducting plate, the first heat conducting plate is connected to one end of the pressure valve body close to the plug-in slot, and the first heating film is arranged on a side of the first heat conducting plate close to the pressure valve body.

[0012] In one of the embodiments, the in vitro diagnostic instrument further comprises a stirring device connected to the pressure valve device;

[0013] The stirring device includes a power component and an action member, wherein the power component can drive the action member to move, and when the action member moves, a driving force can be generated to cover at least a part of the plug-in slot, and the driving force is used to drive the passive member located in the covering area to move.

[0014] In one embodiment, the power assembly includes a rotating device, a conversion assembly and a movable part;

[0015] The output end of the rotating device is connected to the conversion assembly, the movable part is connected to the conversion assembly, and the rotating device drives the movable part to reciprocate along a straight line through the conversion assembly; the active part is provided on the movable part.

[0016] In one embodiment, the conversion assembly includes a cam and a guide assembly; the output end of the rotating device is connected to the cam, the movable part is meshed with the cam, and the movable part is movably arranged on the guide assembly. When the rotating device drives the cam to rotate, it can drive the movable part to move linearly along the guide assembly.

[0017] In one embodiment, the conversion assembly further includes a second elastic member, the movable member is connected to the guide assembly via the second elastic member, and the movable member is always engaged with the cam for transmission under the action of the second elastic member.

[0018] In one embodiment, the active member is a magnetic member, and the magnetic member can generate a magnetic attraction force or a magnetic repulsion force to attract or repel the passive member, and the magnetic attraction force or the magnetic repulsion force is the driving force.

[0019] In one embodiment, the card insertion device includes a card insertion body and a first positioning component and a second positioning component movably connected to the card insertion body;

[0020] The card insertion body has the insertion slot; the first positioning component can at least partially extend into the insertion slot to perform a primary positioning on the reagent card inserted into the insertion slot, and the second positioning component can at least partially extend into the insertion slot to perform a secondary positioning on the reagent card inserted into the insertion slot.

[0021] In one of the embodiments, the first positioning assembly includes a first positioning piece, which is arranged on the card insertion body and elastically extends into the insertion slot along the front side of the card insertion body; the second positioning assembly includes a card pressing assembly and a second positioning piece, the card pressing assembly is movably arranged on the back side of the card insertion body, and the second positioning piece is arranged on a side of the card pressing assembly close to the insertion slot.

[0022] In one of the embodiments, the first positioning assembly further includes a third positioning member, which is disposed on the card inserting body and elastically extends into the inserting slot along a side surface of the card inserting body.

[0023] In one embodiment, the second positioning assembly further includes a second driving device, and the second driving device drives the card pressing assembly to reciprocate toward or away from the insertion slot.

[0024] In one of the embodiments, the card pressing assembly includes a card pressing plate and a second heating device; the output end of the second driving device is connected to the card pressing plate, and the second heating device is arranged on a side of the card pressing plate facing the plug-in slot.

[0025] In one embodiment, the second heating device includes a second heating film and a second heat conducting plate, the second heat conducting plate is connected to the pressing plate, and the second heating film is arranged on a side of the second heat conducting plate close to the pressing plate.

[0026] In one embodiment, the in vitro diagnostic instrument also includes an air suction power source; the pressure plate also has at least one air inlet channel, the air inlet channel has an air inlet end and an air outlet end, the air inlet end at least partially extends out of the pressure plate and faces the plug-in slot, and the end of the air inlet end extending out of the pressure plate is annular, the air inlet end is used to be sealed and connected to the air hole of the reagent card, and the air outlet end is connected to the air suction power source.

[0027] In one of the embodiments, the clamping plate is further provided with at least one pressure detection hole; the in vitro diagnostic instrument further comprises a first pressure sensor and a sealing ring, and the first pressure sensor is sealed in the pressure detection hole through the sealing ring.

[0028] In one embodiment, the insertion slot includes a first slot and a second slot that are interconnected; the in vitro diagnostic instrument also includes an identification module and a reading module arranged on the card insertion device, the identification module is used to identify the insertion status of the first slot, and the reading module is used to read the information of the reagent card inserted into the second slot.

[0029] In one embodiment, the card insertion device includes a card insertion body, a notch is provided at the top of the card insertion body, the first slot and the second slot are vertically provided on the card insertion body, and the notch, the first slot and the second slot are connected in sequence, the identification module is arranged at a position of the card insertion body corresponding to the first slot, and the reading module is arranged at a position of the card insertion body corresponding to the first slot or the second slot.

[0030] In one embodiment, the in vitro diagnostic instrument also includes a gas source device, which includes a tank body and an air circuit system, the tank body has a first cavity and a second cavity, the second cavity is connected to the first cavity through the control of the air circuit system, the first cavity is used to connect to the flow channel of the reagent card for gas supply, and the volume of the first cavity is greater than the volume of the second cavity.

[0031] In one embodiment, the gas circuit system includes a main gas circuit, a branch gas circuit and a one-way valve; the first chamber and the second chamber are each pressurized by a gas generating device external to the main gas circuit, the first chamber and the second chamber are connected through the branch gas circuit, and the one-way valve is arranged on the branch gas circuit to enable gas to enter the first chamber from the second chamber.

[0032] A control method for an in vitro diagnostic instrument, the control method is based on the in vitro diagnostic instrument as described above, and comprises the following steps:

[0033] Inserting a reagent card into the insertion slot of the card insertion device, wherein the reagent card has at least one flow channel covered by a covering film layer;

[0034] At least one pressure valve component of the pressure valve device is controlled to move relative to the card insertion device to extend into the insertion slot or extend out of the insertion slot; after the pressure valve component extends into the insertion slot, it abuts against the reagent card and squeezes the covering film layer of the reagent card to block the flow channel; after the pressure valve component extends out of the insertion slot, it is separated from the reagent card, and the flow channel is in a connected state.

[0035] The technical solution provided by the present invention has the following advantages and effects:

[0036] The in vitro diagnostic instrument is movably inserted into the card insertion device through a pressure valve component, and the pressure valve component can extend into the insertion slot of the card insertion device to abut against the reagent card, so that when the pressure valve component moves relative to the card insertion device to extend into the insertion slot, the pressure valve component can squeeze the covering film layer on the reagent card, and the covering film layer can fit the flow channel hole of the reagent card after being squeezed and deformed, and can block the flow channel of the reagent card to disconnect the connection. Therefore, each pressure valve component can realize accurate control of the independent opening or disconnection of each flow channel, thereby realizing accurate control of the opening or disconnection of each flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings herein show specific examples of the technical solutions described in the present invention, and together with the specific implementation methods, constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present invention.

[0038] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0039] Figure 1 is a schematic diagram of the three-dimensional structure of an in vitro diagnostic instrument according to an embodiment of the present invention;

[0040] Figure 2 yes Figure 1 Schematic diagram of the assembly structure of the detection mechanism of the in vitro diagnostic instrument;

[0041] Figure 3 It is a schematic diagram of the assembly structure of the valve pressing device and the card inserting device from one angle;

[0042] Figure 4 yes Figure 3 A longitudinal cross-sectional schematic diagram of the assembly structure of the pressure valve device and the card insertion device;

[0043] Figure 5 yes Figure 3 A schematic diagram of the assembly structure of the pressure valve device and the card insertion device from another angle;

[0044] Figure 6 yes Figure 5 A schematic cross-sectional structural diagram of a card insertion device;

[0045] Figure 7 yes Figure 5 A schematic diagram of the exploded structure of the card insertion device;

[0046] Figure 8 It is a schematic diagram of the exploded structure of the spring card mounting part;

[0047] Fig. 9 It is a schematic diagram of the exploded structure of the card pressing assembly of the card insertion device;

[0048] Fig.10 is a schematic diagram of the exploded structure of the second driving device of the card pressing assembly;

[0049] Fig.11 It is a schematic diagram of a cross-sectional structure of a card pressing body of a card pressing assembly;

[0050] Fig.12 is another cross-sectional structural schematic diagram of the card pressing body of the card pressing assembly;

[0051] Fig.13 It is a schematic diagram of the front structure of the card pressing plate;

[0052] Fig.14 It is a three-dimensional structural schematic diagram of the pressure valve device;

[0053] Fig.15 yes Fig.14 A schematic diagram of an exploded structure of a part of the structure of a pressure valve device;

[0054] Fig.16 yes Figure 3 A schematic diagram of the structure of the valve pressing device and the card inserting device in an unassembled state;

[0055] Fig.17 yes Fig.13 A schematic cross-sectional view of a partial structure of a pressure valve device;

[0056] Fig.18 is a schematic diagram of the cross-sectional structure of the stirring device;

[0057] Fig.19 is a schematic diagram of the exploded structure of the stirring device;

[0058] Fig. 20 yes Fig.14 A schematic diagram of the exploded structure of another part of the pressure valve device;

[0059] Fig.21 is a schematic diagram of the installation structure of the first driving device;

[0060] Fig. 22 It is a three-dimensional structural schematic diagram of the gas source device;

[0061] Fig.23 It is a schematic diagram of the exploded structure of the gas source device;

[0062] Fig.24 It is a schematic diagram of the longitudinal section structure of the tank;

[0063] Fig.25 It is a schematic diagram of the connection structure of the gas system;

[0064] Fig.26 It is a schematic diagram of the state of the in vitro diagnostic instrument being plugged into a reagent card;

[0065] Fig. 27 This is a schematic diagram of the front structure of the reagent card;

[0066] Fig.28 This is a schematic diagram of the back structure of the reagent card;

[0067] Fig.29 This is a schematic diagram of the decomposed structure of the reagent card.

[0068] Description of reference numerals:

[0069] 100. In vitro diagnostic instruments;

[0070] 10. Testing agency;

[0071] 1. Valve pressing device; 11. Valve pressing body; 111. Valve body; 112. Valve cover; 113. Connecting hole; 12. Valve pressing member; 121. Blocking member; 13. First elastic member; 14. Sensing element; 15. First heating device; 151. First heating film; 152. First heat conducting plate; 153. Floating connecting member; 154. Connecting column; 155. Limiting part; 156. Elastic part; 157. Second temperature sensing member; 16. First driving device; 17. Driving fixed seat; 171. Optical coupling sensor; 18. Driving pressure head;

[0072] 2. Card insertion device; 21. Card insertion body; 211. Insertion slot; 2111. First slot; 2112. Second slot; 212. Bottom plate; 213. Top plate; 214. Side plate; 22. First positioning assembly; 221. First positioning member; 222. Third positioning member; 223. Elastic mounting member; 2231. Spring clamp member; 2232. Third elastic member; 2233. Spring clamp mounting seat; 224. Locking member; 225. Pressing strip; 23. Second positioning assembly; 231. Pressing assembly; 2311. Pressing plate; 2312. Second heating film; 2313. Second Heat conducting plate; 2314, first temperature sensing element; 2315, air inlet channel; 2316, first pressure sensor; 2317, sealing ring; 2318, air extraction channel; 2319, pressure detection hole; 232, second positioning element; 233, second driving device; 234, linear guide device; 24, cover assembly; 241, rotating plate; 242, rotating shaft; 243, mounting plate; 244, tension spring; 245, E-type retaining spring; 25, identification module; 251, infrared radiation module; 252, infrared receiving module; 26, reading module; 27, status indicator light;

[0073] 3. stirring device; 31. rotating device; 32. conversion assembly; 321. cam; 322. guide assembly; 3221. guide member; 3222. sliding member; 323. second elastic member; 33. movable member; 34. action member; 35. driven wheel; 36. mounting seat;

[0074] 4. Gas source device; 41. Tank body; 411. First cavity; 412. Second cavity; 413. First opening end; 414. Second opening end; 415. First end cover; 4151. First annular groove; 416. Second end cover; 417. First sealing member; 418. Second sealing member; 42. Gas path system; 421. Main gas path; 422. Branch gas path; 423. One-way valve; 424. First pressure relief gas path; 425. First switch valve; 426. First speed regulating valve; 427. Second pressure relief gas path; 428. Second switch valve; 429. Second speed regulating valve; 431. Third pressure relief gas path; 432. Third switch valve; 433. Fourth pressure relief gas path; 434. Fourth switch valve; 435. Second pressure sensor; 436. Fifth switch valve; 437. Third pressure sensor; 438. Sixth switch valve.

[0075] 5. Mounting frame; 51. Touch screen; 52. Printer; 53. Frame; 54. First layer body; 55. Second layer body; 6. Plunger pump;

[0076] 200, reagent card; 210, reagent chamber; 220, flow channel; 230, flow channel hole; 240, covering film layer; 300, blood collection tube; 310, blood vessel stand; 320, plug-in pipeline. DETAILED DESCRIPTION

[0077] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0078] Unless otherwise specified or defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. In the case of combining the technical solution of the present invention with a realistic scenario, all technical and scientific terms used herein may also have meanings corresponding to the purpose of implementing the technical solution of the present invention.

[0079] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0080] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0081] It should be noted that when a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there can be a central component; when an component is considered to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time; when an component is considered to be "installed on" another component, it can be directly installed on the other component or there can be a central component at the same time. When an component is considered to be "set on" another component, it can be directly set on the other component or there can be a central component at the same time.

[0082] It should be noted that the in vitro diagnostic instrument 100 can be used to perform blood sample tests for different items. Specifically, in this embodiment, the in vitro diagnostic instrument 100 can be used to perform blood coagulation and thrombosis tests. Figure 27 to Figure 29 As shown, the reagent card 200 mentioned in this embodiment has a covering film layer 240, and a reagent cavity 210, a flow channel 220, a flow channel hole 230, a fixed card hole, etc. are provided on the reagent card 200. The covering film layer 240 is arranged on the reagent card 200 and covers the reagent cavity 210, the flow channel 220, the flow channel hole 230, the fixed card hole, etc.; it should be further explained that the flow channel 220 of the reagent card 200 is formed by the hole opened on the front side of the reagent card 200 and the hole opened on the back side to form the flow channel 220 of the reagent card 200, and each flow channel hole 230, reagent cavity 210 and fixed card hole can be correspondingly arranged at the flow channel 220 on the front side or the back side of the reagent card 200. Figures 1 to 29 As shown, the in vitro diagnostic instrument 100 integrates a card insertion device 2, a pressure valve device 1, a stirring device 3, an air source device 4, a control system, etc. The various components can be automatically controlled by the control system to form automated detection.

[0083] Specifically, Figure 1 and Figure 2 As shown, the various components of the in vitro diagnostic instrument 100 can be integrated on a mounting frame 5, and the mounting frame 5 can be an open structure, or in other embodiments, the mounting frame 5 can be provided with a mounting base plate, a front mounting plate, a left mounting plate, a right mounting plate, an upper fixing plate, and a rear cover plate to form a cavity, and the cavity forms a mounting position for installing the above-mentioned various components. The mounting frame 5 can protect the internal core components and their hardware, and avoid being affected by the external environment during the detection process in the mounting frame 5. In addition, a touch screen 51, a printer 52, etc. can also be provided on the mounting frame 5, and no special restrictions are made here.

[0084] This embodiment provides an in vitro diagnostic instrument 100, such as Figures 3 to 29As shown, the in vitro diagnostic instrument 100 includes a card insertion device 2 and a pressure valve device 1; the card insertion device 2 has a plug-in slot 211 for inserting a reagent card 200; it should be noted that the reagent card 200 inserted into the plug-in slot 211 has multiple flow channels 220, each flow channel 220 can perform a test item, so that multiple different tests can be integrated into one reagent card 200. The pressure valve device 1 includes at least one pressure valve member 12, each pressure valve member 12 is movably arranged in the card insertion device 2, and the pressure valve member 12 can extend into the plug-in slot 211 to abut against the reagent card 200. It can be understood that the pressure valve component 12 moves relative to the card insertion device 2 until it extends into the insertion slot 211. At this time, the pressure valve component 12 can squeeze the covering film layer 240 on the reagent card 200. After being squeezed and deformed, the covering film layer 240 can fit the flow channel hole 230 of the reagent card 200, and can block the flow channel 220 of the reagent card 200 to disconnect it, so that each pressure valve component 12 can achieve precise control of the independent opening or disconnection of each flow channel 220.

[0085] In summary, the in vitro diagnostic instrument 100 is movably inserted into the card insertion device 2 through the pressure valve component 12, and the pressure valve component 12 can extend into the insertion slot 211 of the card insertion device 2 to abut against the reagent card 200, so that when the pressure valve component 12 moves relative to the card insertion device 2 to extend into the insertion slot 211, the pressure valve component 12 can squeeze the covering film layer 240 on the reagent card 200. After the extrusion deformation, the covering film layer 240 can fit the flow channel hole 230 of the reagent card 200, and can block the flow channel 220 of the reagent card 200 to disconnect. Therefore, each pressure valve component 12 can realize the independent opening or disconnection of each flow channel 220, thereby realizing the precise control of the opening or disconnection of each flow channel 220.

[0086] In some embodiments, Figures 5 to 13 As shown, the card insertion device 2 includes a card insertion body 21 and a first positioning component 22 and a second positioning component 23 that are movably connected to the card insertion body 21; the card insertion body 21 has a plug-in slot 211; specifically in this embodiment, the card insertion body 21 includes a bottom plate 212, a top plate 213 and three side plates 214, the bottom plate 212 and the top plate 213 are arranged opposite to each other, and the bottom plate 212 and the top plate 213 are connected by three side plates 214, the bottom plate 212, the top plate 213 and the three side plates 214 enclose a plug-in slot 211 with a window, wherein the window is located at the front position of the reagent card 200 after the reagent card 200 is inserted into the plug-in slot 211. It should be further explained that the front of the reagent card 200 is provided with a flow channel 220, a reagent cavity 210, etc., and the back of the reagent card 200 has a fixed card hole for positioning, etc.

[0087] The first positioning component 22 can at least partially extend into the insertion slot 211 to perform a primary positioning of the reagent card 200 inserted into the insertion slot 211, and the second positioning component 23 can at least partially extend into the insertion slot 211 to perform a secondary positioning of the reagent card 200 inserted into the insertion slot 211. It can be understood that the first positioning component 22 and the second positioning component 23 are both movably arranged in the card insertion body 21, so that the reagent card 200 located in the insertion slot 211 can be initially positioned by the first positioning component 22 extending into the insertion slot 211, and after the initial positioning is completed, the reagent card 200 can be secondary positioned by the second positioning component 23 extending into the insertion slot 211, so that the reagent card 200 can be double-positioned by the first positioning component 22 and the second positioning component 23, and the double positioning method can make the reagent card 200 accurately inserted and positioned in the insertion slot 211, and can make the reagent card 200 firmly fixed at the preset position of the insertion slot 211, thereby improving the stability and accuracy of the insertion of the reagent card 200.

[0088] In some embodiments, Figure 6As shown, the first positioning component 22 includes a first positioning member 221, which is arranged on the card insertion body 21 and elastically extends into the insertion slot 211 along the front side of the card insertion body 21; it can be understood that the front side of the card insertion body 21 corresponds to the front side of the reagent card 200, and the back side of the card insertion body 21 corresponds to the back side of the reagent card 200. The first positioning member 221 elastically extends into the insertion slot 211 toward the front side of the card insertion body 21, and can perform initial positioning of the reagent card 200 inserted into the insertion slot 211 in the Y-axis direction, wherein the first positioning member 221 can be a ball head plunger, which can be specifically arranged on the left and right sides of the insertion slot 211 window through two card pressing strips 225, the ball head plunger is arranged on the card pressing strip 225 and elastically extends into the insertion slot 211, and the ball head plunger can elastically squeeze the front side of the reagent card 200. It should be noted that the X-axis direction, Y-axis direction and Z-axis direction of the reagent card 200 correspond to the three directions of the three-dimensional space of the reagent card 200, wherein the X-axis direction corresponds to the length direction of the reagent card 200, the Y-axis direction corresponds to the width direction of the reagent card 200, and the Z-axis direction corresponds to the height direction of the reagent card 200. The second positioning component 23 includes a card pressing component 231 and a second positioning member 232, wherein the card pressing component 231 is movably disposed on the back side of the card inserting body 21, and the second positioning member 232 is disposed on one side of the card pressing component 231 close to the plug-in slot 211. It can be understood that after the first positioning component 22 initially positions the reagent card 200, a margin is left between the reagent card 200 and the plug-in slot 211, and the card pressing component 231 is moved toward the back of the reagent card 200, and the second positioning member 232 on the card pressing component 231 is inserted into the corresponding card fixing hole on the back of the reagent card 200. At this time, the second positioning member 232 completes the secondary positioning of the reagent card 200, and cooperates with the first positioning member 221 to extend the reagent card 200 into the plug-in slot 211 in the front direction, so that the reagent card 200 can be doubly positioned in the front and back directions, so that the reagent card 200 can be accurately inserted and positioned in the plug-in slot 211.

[0089] In some embodiments, Figure 6As shown, the first positioning component 22 further includes a third positioning member 222, which is disposed on the card body 21 and elastically extends into the insertion slot 211 along the side of the card body 21. It can be understood that the side of the card body 21 corresponds to the side of the reagent card 200, and the third positioning member 222 elastically extends into the insertion slot 211 toward the side of the card body 21, and can perform initial positioning of the reagent card 200 inserted into the insertion slot 211 in the X-axis direction; specifically, the third positioning member 222 can be a compression roller, which facilitates the smooth insertion of the reagent card 200 into the insertion slot 211, and can elastically extend into the insertion slot 211 to position the reagent card 200 in the X-axis direction. Therefore, by cooperating with the first positioning member 221 and the third positioning member 222, the reagent card 200 can be initially positioned in the length direction and the width direction in the insertion slot 211, and by the first positioning member 221 and the third positioning member 222 abutting against the front and side surfaces of the reagent card 200, the reagent card 200 can be fixed in the insertion slot 211, effectively preventing the reagent card 200 from moving relative to the insertion slot 211.

[0090] In some embodiments, Figures 6 to 8 As shown, the first positioning component 22 also includes an elastic mounting member 223 and a locking member 224; the elastic mounting member 223 is arranged at the bottom of the insertion slot 211, and the locking member 224 is arranged on the card insertion body 21 between the elastic mounting member 223 and the top of the insertion slot 211, and the elastic mounting member 223 is used to drive the reagent card 200 to move toward the top of the insertion slot 211 until the locking member 224 locks the reagent card 200. It can be understood that, by applying external force to the reagent card 200, the reagent card 200 is inserted into the insertion slot 211 and the bottom of the reagent card 200 is against the bottom of the insertion slot 211, the reagent card 200 compresses the elastic mounting member 223, and then the external force is removed. During the recovery process of the elastic mounting member 223, the reagent card 200 can be driven to move to the preset position toward the top of the insertion slot 211, that is, the reagent card 200 is adjusted in the Z-axis direction under the drive of the elastic mounting member 223, and the locking member 224 locks and positions the reagent card 200. Therefore, through the cooperation of the elastic mounting member 223 and the locking member 224, the reagent card 200 can be adjusted and positioned in the Z-axis direction, and through the cooperation of the first positioning member 221 and the third positioning member 222, the reagent card 200 can be positioned and adjusted in the X-axis direction, the Y-axis direction and the Z-axis direction, so that the reagent card 200 is initially positioned and fixed in the insertion slot 211. In addition, a position sensor may be provided on the elastic mounting member 223. When the reagent card 200 is initially positioned, the control system senses the insertion status of the reagent card 200 through the position sensor.

[0091] Specifically in the present embodiment, the locking member 224 is an elastic self-locking rod, which is used to cooperate with the locking hole of the reagent card 200 for locking. When the reagent card 200 is inserted into the insertion slot 211, the reagent card 200 squeezes the elastic self-locking rod, and the elastic self-locking rod is compressed and retracted into the card insertion body 21. When the reagent card 200 moves upward under the drive of the elastic mounting member 223, the locking hole of the reagent card 200 moves to correspond to the elastic self-locking rod, and the elastic self-locking rod resets and extends into the locking hole of the reagent card 200 to position and lock the reagent card 200, so as to prevent the reagent card 200 from continuing to move upward, thereby completing the positioning of the reagent card 200 in the Z-axis direction. In addition, the elastic mounting member 223 includes a spring-clip mounting seat body 2233, a spring-clip member 2231 and a third elastic member 2232. The spring-clip member 2231 is elastically mounted on the spring-clip mounting seat body 2233 through the third elastic member 2232. The spring-clip mounting seat body 2233 is arranged at the bottom of the plug-in slot 211 so that the spring-clip member 2231 can have elastic properties in the Z-axis direction.

[0092] In some embodiments, Figure 6 and Fig.10 As shown, the second positioning assembly 23 also includes a second driving device 233, and the second driving device 233 drives the card pressing assembly 231 to move back and forth in the direction close to or away from the plug-in slot 211. It can be understood that the second driving device 233 automatically drives the card pressing assembly 231 to move close to or away from the back of the reagent card 200, so that the card pressing assembly 231 can be accurately and tightly matched with the back of the reagent card 200, and the second positioning member 232 can be appropriately inserted into the fixed card hole on the back of the reagent card 200. It should be noted that the second driving device 233 is located on the outside of the side plate 214 of the card insertion body 21 opposite to the window, and the card pressing assembly 231 is located in the plug-in slot 211. The second driving device 233 located outside the plug-in slot 211 is penetrated by a connecting rod in the side plate 214 to connect with the card pressing assembly 231, so that the card pressing assembly 231 can move smoothly in the plug-in slot 211 along the Y-axis direction of the reagent card 200, so as to adapt to the limited space in the plug-in slot 211 and avoid interference between various components. In addition, the second driving device 233 can be a device such as an electric cylinder or a servo motor screw structure that can drive the card pressing assembly 231 to perform linear motion, and no special limitation is made here.

[0093] It should be noted that a photoelectric block is also provided on the card pressing assembly 231, and a card pressing reset photoelectric switch and a card ejection self-locking photoelectric switch are provided at a position of the card inserting body 21 corresponding to the travel range of the card pressing assembly 231, and the card pressing reset photoelectric switch is located between the plug-in slot 211 and the card ejection self-locking photoelectric switch. When the card pressing assembly 231 moves to the photoelectric block and passes the card pressing reset photoelectric switch, the second positioning member 232 of the card pressing assembly 231 is disengaged from the reagent card 200; the card pressing assembly 231 continues to move backward, and after the photoelectric block moves to pass the card ejection self-locking photoelectric switch, the card pressing assembly 231 stops moving, and the elastic self-locking rod retreats and disengages from the reagent card 200, the elastic mounting member 223 is reset, and the reagent card 200 moves upward along the Z-axis direction and pops out.

[0094] In some embodiments, Figure 6 and Fig. 9 As shown, in order to enable the card pressing assembly 231 to smoothly reciprocate in a straight line in the running direction of the output end of the second driving device 233, the second positioning assembly 23 also includes a linear guide device 234, one end of which is arranged on the card pressing assembly 231, and the other end is movably arranged on the card inserting body 21, so as to enable the card pressing assembly 231 to make a linear movement in the moving direction of the output end of the second driving device 233. Specifically in this embodiment, the linear guide device 234 may include a linear bearing and a guide shaft, and a guide hole is provided on the card inserting body 21 along the moving direction of the output end of the second driving device 233, and the linear bearing is vertically inserted into the guide hole, and one end of the guide shaft is fixedly connected to the card pressing assembly 231 after passing through the linear bearing. It can be understood that the guide shaft can slide in the linear bearing, and the linear bearing ensures that the guide shaft can move linearly, thereby ensuring that the card pressing assembly 231 can move linearly.

[0095] In some embodiments, the end of the second positioning member 232 away from the card pressing assembly 231 is in a convex arc structure or an inclined surface structure; specifically, the second positioning member 232 can be a positioning pin. By forming a convex arc structure or an inclined surface structure at the end of the second positioning member 232, the second positioning member 232 can be adaptively adjusted during the insertion of the reagent card 200 into the fixed card hole, so that the second positioning member 232 can accurately and smoothly slide into the fixed card hole, and can slide out of the fixed card hole under the action of external force, and has a good mechanical touch.

[0096] In some embodiments, Figure 5 and Figure 7As shown, the card insertion body 21 also has a notch communicated with the insertion slot 211, and the card insertion device 2 also includes a cover assembly 24 movably connected to the card insertion body 21, and the cover assembly 24 can be moved to close or open the notch. It can be understood that the notch of the card insertion body 21 is used to insert the reagent card 200, and the notch is specifically arranged at the top plate 213 of the card insertion body 21, wherein when the reagent card 200 is not inserted into the notch, the cover assembly 24 covers the notch to make the notch in a closed state, and when the reagent card 200 needs to be inserted into the notch, the cover assembly 24 moves relative to the notch to open the notch, so as to facilitate the insertion of the reagent card 200, and can effectively prevent foreign matter such as dust from entering the insertion slot 211. Specifically in this embodiment, the covering assembly 24 includes a rotating plate 241, a rotating shaft 242, a tension spring 244 and two mounting plates 243; the two mounting plates 243 are correspondingly arranged on the opposite sides of the card insertion body 21 corresponding to the slot, and a sliding groove is opened on the mounting plate 243. The two ends of the rotating shaft 242 are respectively arranged in the sliding grooves of the two mounting plates 243. The rotating plate 241 is rotatably installed on the mounting plate 243 through the rotating shaft 242 and covers the slot. The two ends of the tension spring 244 are respectively abutted against the rotating shaft 242 and the card insertion body 21. When the reagent card 200 is inserted into the insertion slot 211, the rotating plate 241 is driven to move along the The slideway rotates toward the insertion slot 211 so that the slot is opened for the reagent card 200 to be inserted. At this time, the tension spring 244 is in a compressed state. When the reagent card 200 is pulled out, the tension spring 244 drives the rotating plate 241 to rotate in the opposite direction along the slideway in the process of restoring its own state, and finally the rotating plate 241 closes the slot. Therefore, through the rotating plate 241, the rotating shaft 242, the tension spring 244 and the two mounting plates 243, the rotating plate 241 can be in a closed state when no reagent card 200 is inserted, and the reagent card 200 can be self-reset after being pulled out, effectively preventing dust and other foreign matter from entering the interior of the insertion slot 211. In addition, the rotating shaft 242 is located at the end of the mounting plate 243. An E-type retaining spring 245 is also provided to limit the axial movement of the rotating shaft 242 and prevent the tension spring 244 from being separated from the rotating shaft 242.

[0097] In some embodiments, Fig. 9As shown, the card pressing assembly 231 includes a card pressing plate 2311 and a second heating device; the output end of the second driving device 233 is connected to the card pressing plate 2311, and the second heating device is arranged on the side of the card pressing plate 2311 facing the plug-in slot 211. It can be understood that when the second driving device 233 drives the card pressing plate 2311 to move to the back side of the reagent card 200, the second heating device can heat the back side of the reagent card 200 to meet the ambient temperature state detected by the reagent card 200. Specifically in the present embodiment, the second heating device includes a second heating film 2312 and a second heat conducting plate 2313, the second heat conducting plate 2313 is connected to one end of the card pressing plate 2311 away from the second driving device 233, and the second heating film 2312 is arranged on the side of the second heat conducting plate 2313 close to the card pressing plate 2311. Specifically in this embodiment, the second heating film 2312 is arranged in close contact with the second heat conducting plate 2313, so that the heat of the second heating film 2312 can be fully transferred to the second heat conducting plate 2313. It can be understood that the second heat conducting plate 2313 is used to form a close contact state with the reagent card 200, and is used to transfer the heat of the second heating film 2312 to uniformly heat the reagent card 200.

[0098] In some embodiments, Fig. 9 As shown, a first temperature sensing element 2314 is provided on one side of the second heat conducting plate 2313 away from the second heating film 2312. It can be understood that by sensing the temperature of the reagent card 200 in real time through the first temperature sensing element 2314, the heating temperature of the reagent card 200 can be accurately controlled, effectively preventing the temperature of the reagent card 200 from being too high or too low, thereby affecting the detection effect.

[0099] In some embodiments, Figure 7 , Fig.11 and Fig.13As shown, the in vitro diagnostic instrument 100 also includes an air pumping power source, and the card pressing plate 2311 also has at least one air inlet channel 2315, and the air inlet channel 2315 has an air inlet end and an air outlet end. The air inlet end of the air inlet channel 2315 at least partially extends out of the card pressing plate 2311 and faces the plug-in slot 211, and the end of the air inlet end extending out of the card pressing plate 2311 is an annular structure, and the air inlet end is used to be sealed and connected with the air hole of the reagent card 200, and the air outlet end is connected with the air pumping power source. It should be noted that the back of the reagent card 200 can also be provided with a covering film layer 240, and the covering film layer 240 covers the air hole, the fixed card hole, etc. of the reagent card 200. When working, the annular structure of the air inlet channel 2315 presses against the covering film corresponding to the pore position of the reagent card 200, so that the covering film seals the pore of the reagent card 200, forming an effective sealing environment for the reagent card 200, with good airtightness, which can reduce the processing accuracy of the air inlet channel 2315, and under the condition that the reagent card 200 needs to be multi-porous sealed, the sealing of each pore can be ensured by arranging multiple air inlet channels 2315 on the card pressing plate 2311. Specifically, the air extraction power source can be a plunger pump 6 or a peristaltic pump, etc., which is not particularly limited here.

[0100] It can be understood that the air pumping power source is connected to the air hole of the reagent card 200 through the air inlet channel 2315. When the card pressing plate 2311 is fitted with the reagent card 200, the air inlet channel 2315 on the card pressing plate 2311 is aligned with the air hole of the reagent card 200, and the air pumping power source can be started to pump air into the reagent card 200 to form a negative pressure environment in the reagent card 200. It should be further explained that each flow channel 220 of the reagent card 200 is correspondingly provided with an air hole, and each air hole is correspondingly provided with an air inlet channel 2315, so that each flow channel 220 can be independently pumped through the air pumping power source, so that each flow channel 220 forms an independent negative pressure state according to the needs of the test items.

[0101] In some embodiments, the in vitro diagnostic instrument 100 further includes a valve island device, through which the pumping power source is controlled to communicate with the air inlet channel 2315. Specifically, the valve island device includes a valve island body, a negative pressure detection element, and at least one first valve switch, the valve island body having at least one first gas channel, the first gas channel being arranged in one-to-one correspondence with the air inlet channel 2315 and being controlled to communicate through the first valve switch; the first gas channel is connected to the pumping power source, and the negative pressure detection element is arranged in the first gas channel. It can be understood that by controlling the pumping power source to communicate with the air inlet channel 2315 through the valve island device, each flow channel 220 of the reagent card 200 can be independently pumped by starting the pumping power source, and the negative pressure detection element can be used to sense whether there is a gas leak.

[0102] In some embodiments, Figure 2and Fig.13 As shown, the air extraction power source is a plunger pump 6. The card pressing plate 2311 is also provided with an air extraction channel 2318 for communicating with the air extraction hole of the reagent card 200, and the plunger pump 6 is connected with the air extraction channel 2318. When the card pressing plate 2311 and the reagent card 200 are fitted together, the air extraction channel 2318 on the card pressing plate 2311 is aligned with the air extraction hole of the reagent card 200, and the reagent card 200 can be emptied and the plunger pump 6 can be depressurized and reset by starting the plunger pump 6.

[0103] In some embodiments, Fig.12 and Fig.13 As shown, the card pressing plate 2311 is also provided with at least one pressure detection hole 2319; the in vitro diagnostic instrument 100 also includes a first pressure sensor 2316 and a sealing ring 2317, and the first pressure sensor 2316 is sealed and arranged in the pressure detection hole 2319 through the sealing ring 2317. Specifically in this embodiment, two sealing rings 2317 are provided, and the two sealing rings 2317 are closely attached to the inverted conical surface of the first pressure sensor 2316, so that the sealing performance of the first pressure sensor 2316 in the pressure detection hole 2319 can be achieved, so that the pressure condition in the reagent card 200 can be detected by the first pressure sensor 2316.

[0104] In some embodiments, Figures 14 to 21 As shown, the pressure valve device 1 also includes a pressure valve body 11 and at least one first driving device 16; the pressure valve body 11 is at least partially placed in the plug-in slot 211. The pressure valve body 11 is movably connected to the pressure valve member 12; specifically, in this embodiment, the pressure valve body 11 is correspondingly arranged at the window position of the plug-in slot 211, so that the pressure valve member 12 can extend into the plug-in slot 211 and abut against the flow channel hole 230 of the reagent card 200. The first driving device 16 is arranged one-to-one with the pressure valve member 12, and each first driving device 16 can drive a pressure valve member 12 to move relative to the pressure valve body 11 until it extends into the plug-in slot 211. It can be understood that each pressure valve component 12 can be controlled by a first drive device 16, so the pressure valve component 12 and the flow channel hole 230 can be set one by one, so that the flow channel hole 230 of each flow channel 220 can be controlled to open or disconnect by a pressure valve component 12, and different pressure valve components 12 are controlled by different first drive devices 16 to block different flow channels 220, thereby achieving precise control of the opening or disconnection of each flow channel 220, and can effectively avoid reagent leakage in the disconnected flow channel 220, effectively avoiding affecting the detection efficiency and detection effect. Specifically, the first drive device 16 can be a device such as an electric cylinder or a linear motor that can drive the pressure valve component 12 to move linearly, and no special restrictions are made here. Specifically, the first drive device 16 can be a device such as an electric cylinder or a linear motor that can drive the pressure valve component 12 to move linearly, and no special restrictions are made here.

[0105] In some embodiments, Fig.14 As shown, the output end of the first driving device 16 is at least partially arranged relative to the pressure valve member 12, and the output end of the first driving device 16 can move to press the pressure valve member 12. It should be noted that the output end of the first driving device 16 can be only partially arranged relative to the end of the pressure valve member 12, or the output end of the first driving device 16 is arranged relative to the end of the pressure valve member 12 as a whole. It can be understood that the output end of the first driving device 16 and the pressure valve member 12 are independently arranged, and the output end of the first driving device 16 is at least partially arranged relative to the pressure valve member 12, so after the first driving device 16 is started, it can move toward one end close to the pressure valve member 12 through its own output end and press the pressure valve member 12, thereby driving the pressure valve member 12 to move relative to the pressure valve body 11 until it extends out of the pressure valve body 11, at this time, the other end face of the pressure valve member 12 away from the first driving device 16 can squeeze the covering film layer 240 on the reagent card 200. Therefore, by at least partially setting the output end of the first drive device 16 relative to the pressure valve component 12, the first drive device 16 can drive the pressure valve component 12 to move to disconnect the flow channel 220. The output end of the first drive device 16 and the pressure valve component 12 are in surface contact. The output end of the first drive device 16 and the pressure valve component 12 do not need to be precisely aligned and coaxially arranged, thereby reducing the position accuracy requirements and processing accuracy requirements, and can effectively avoid the phenomenon of each first drive device 16 getting stuck during operation.

[0106] In some embodiments, Fig.14 , Fig. 20 and Fig.21 As shown, the pressure valve device 1 can be provided with a driving fixed seat 17, and each first driving device 16 is arranged in an array on the driving fixed seat 17. The output end of the first driving device 16 can be provided with a driving pressure head 18, which can be specifically provided by movably pressing the pressure valve member 12 through the end of the driving pressure head 18 to increase the corresponding area of ​​the first driving device 16 and the pressure valve member 12. Specifically in this embodiment, when assembling the first driving device 16 such as a linear motor, the linear motor is installed into the driving fixed seat 17 from top to bottom. The roller in the driving fixed seat 17 is reset by the spring, so that the linear motor is pressed forward, and the driving pressure head 18 is installed into the output shaft end of the linear motor from front to back, which can ensure that each group of linear motors and the driving pressure head 18 are in the same assembly state, which is convenient for later assembly; an optical coupling sensor 171 is also provided on the driving fixed seat 17, and the driving pressure head 18 is parallel to the optical coupling sensor 171. Therefore, the linear motor on the pressure valve device 1 is set according to the corresponding setting of the pressure valve component 12, and each linear motor can be controlled separately. The initial position is detected by the optical coupling sensor 171, and the number of steps of the linear motor is controlled to realize the precise movement of the motor.

[0107] In some embodiments, Figure 4 and Fig.15 As shown, the pressure valve device 1 further includes a first elastic member 13; the pressure valve member 12 is provided with a blocking member 121, and the first elastic member 13 is provided between the blocking member 121 and the pressure valve body 11, and the force of the first elastic member 13 acting on the pressure valve member 12 is opposite to the force of the first driving device 16. It can be understood that after the first driving device 16 drives the pressure valve member 12 to extend relative to the pressure valve body 11 to complete the operation of squeezing the covering film layer 240 of the reagent card 200, the first driving device 16 moves in the reverse direction to separate its output end from the pressure valve member 12, and at this time, the pressure valve member 12 retracts in the reverse direction relative to the pressure valve body 11 under the action of the first elastic member 13 to restore the original position, and the pressure valve member 12 leaves the covering film layer 240 of the reagent card 200, and the covering film layer 240 returns to its original state to make the blocked flow channel 220 form a connected state. Therefore, by cooperating with the first driving device 16 and the first elastic member 13 to control the pressure valve member 12, the pressure valve member 12 can smoothly reciprocate to quickly control the opening or disconnection of the flow channel 220 of the reagent card 200, which has the characteristics of simple structure and convenient control.

[0108] In some embodiments, Fig.15 As shown, the pressure valve member 12 is provided with an annular blocking member 121 along its circumferential direction, the first elastic member 13 is sleeved on the pressure valve member 12, and the opposite ends of the first elastic member 13 abut the blocking member 121 and the pressure valve body 11 respectively. It can be understood that the first elastic member 13 is sleeved on the pressure valve member 12 and abuts between the blocking member 121 and the pressure valve body 11, which can improve the compactness of the structure on the one hand, and on the other hand, the first elastic member 13 can also reduce the impact force of the pressure valve member 12 on the covering film layer 240, effectively prevent the covering film layer 240 from being punctured, and improve the service life of the first driving device 16. Specifically in this embodiment, the first elastic member 13 can be a spring or other components with elastic properties, which are not particularly limited here.

[0109] In some embodiments, Fig.14As shown, the pressure valve body 11 is provided with at least one penetrating connection hole 113, and each connection hole 113 is arranged in an array structure in the pressure valve body 11; the connection hole 113 is arranged one by one with the pressure valve member 12, and the pressure valve member 12 is movably arranged in the connection hole 113. It can be understood that in this embodiment, the connection hole 113 can form a guiding effect on the pressure valve member 12 by the pressure valve member 12 movably passing through the connection hole 113 of the pressure valve body 11, so that the pressure valve member 12 can be driven by the first driving device 16 and the first elastic member 13 to perform a directional and linear reciprocating motion along the connection hole 113, so as to effectively avoid a large position deviation of the pressure valve member 12 when it is reversely retracted relative to the pressure valve body 11 to restore the original position, so as to avoid the pressure valve member 12 and the output end of the first driving device 16 from being offset to affect the driving effect, so that the pressure valve member 12 can accurately move to correspond to the flow channel hole 230 of the reagent card 200.

[0110] Specifically in this embodiment, Fig.15 As shown, the pressure valve body 11 includes a valve body 111 and a valve cover 112, and the valve cover 112 is covered on the valve body 111 to form a cavity. The valve cover 112 and the valve body 111 are both provided with the connecting hole 113, and the pressure valve member 12 is inserted into the cavity through the connecting hole 113, wherein the blocking member 121 of the pressure valve member 12 is accommodated in the cavity, and the first elastic member 13 is also arranged in the cavity and sleeved on the pressure valve member 12, and the first driving device 16 is arranged at one end of the pressure valve member 12 close to the valve body 111, and the reagent card 200 is arranged at one end of the pressure valve member 12 close to the valve cover 112, so that the first driving device 16 and the first elastic member 13 cooperate to drive the end of the pressure valve member 12 to extend out of the valve cover 112 to press the covering film layer 240 of the reagent card 200, or retract the pressure valve member 12 into the cavity to leave the covering film layer 240 of the reagent card 200. In addition, it should be noted that the radial area of ​​the blocking member 121 is larger than the radial area of ​​the connecting hole 113 to prevent the valve pressing member 12 from being separated from the valve pressing body 11 through the connecting hole 113 .

[0111] In some embodiments, Fig.14 As shown, at least one sensing element 14 is also provided at one end of the pressure valve body 11 close to the plug-in slot 211, and the sensing element 14 is embedded in the pressure valve body 11. It can be understood that by providing the sensing element 14 at one end of the pressure valve body 11 close to the plug-in slot 211, the sensing element 14 can sense the liquid flow state and flow rate of the flow channel 220 of the reagent card 200, thereby realizing the state detection and precise quantification of the liquid in each flow channel 220 of the reagent card 200. Specifically in the present embodiment, the sensing element 14 can be a liquid level sensor. Of course, in other embodiments, the sensing element 14 can also be other elements capable of sensing the state and precise quantification of the liquid in each flow channel 220, and no special limitation is made here.

[0112] In some embodiments, Fig.15 and Fig.17 As shown, the pressure valve device 1 also includes a first heating device 15; the first heating device 15 includes a first heating film 151 and a first heat conducting plate 152, the first heat conducting plate 152 is connected to one end of the pressure valve body 11 close to the plug-in slot 211, and the first heating film 151 is arranged on the side of the first heat conducting plate 152 close to the pressure valve body 11. Specifically in this embodiment, the first heating film 151 and the first heat conducting plate 152 are arranged in close contact with each other, so that the heat of the first heating film 151 can be fully conducted to the first heat conducting plate 152. It can be understood that the first heat conducting plate 152 is used to form a contact state with the reagent card 200, and is used to conduct the heat of the first heating film 151 to uniformly heat the reagent card 200; it should be noted that the edge of the first heat conducting plate 152 has a step. Further, the first heat conducting plate 152 is used to be arranged in affixed with the front side of the reagent card 200, and the second heat conducting plate 2313 of the card pressing assembly 231 is used to be arranged in affixed with the back side of the reagent card 200. Therefore, the first heating film 151 of the valve pressing device 1 and the second heating film 2312 of the card inserting device 2 are arranged in cooperation on the front side and the back side of the reagent card 200, so as to be able to uniformly heat the entirety of the reagent card 200. Specifically, a second temperature sensing member 157 may be provided on the valve pressing body 11 to sense the heating temperature of the first heating film 151 in real time.

[0113] In some embodiments, Figure 4 , Fig.15 and Fig.17As shown, the first heating device 15 further includes a floating connection member 153; the first heat conducting plate 152 is installed on the pressure valve body 11 in a floating manner along the movable extension direction of the pressure valve member 12 through the floating connection member 153. It can be understood that the first heat conducting plate 152 is installed on the pressure valve body 11 through the floating connection member 153, so that the first heat conducting plate 152 has a floating performance relative to the pressure valve body 11, and the first heat conducting plate 152 can move relative to the pressure valve body 11 in the movable extension direction of the pressure valve member 12. After the pressure valve device 1 is assembled to the card insertion device 2, the first heat conducting plate 152 can achieve the first heat conducting plate 152 and the reagent card 200 to maintain a fitting state during operation through the floating performance of the first heat conducting plate 152, thereby ensuring the heating efficiency. Specifically in this embodiment, the edge position of the first heat conducting plate 152 has a step, and the step of the first heat conducting plate 152 is against the edge position of the window of the card inserting body 21 located in the plug-in slot 211, and the middle part of the first heat conducting plate 152 extends into the window position of the plug-in slot 211. When the reagent card 200 is initially positioned by the first positioning component 22, the reagent card 200 can only move in the Y direction. Then, when the card pressing component 231 extends to insert the second positioning member 232 into the fixed card hole of the reagent card 200, the reagent card 200 is driven to squeeze the first positioning member 221 and move toward the direction of the first heat conducting plate 152. Therefore, the reagent card 200 squeezes the first heat conducting plate 152, and the floating performance of the first heat conducting plate 152 can adapt to the moving distance of the reagent card 200, so that the first heat conducting plate 152 and the second heat conducting plate 2313 are kept in a fit state with the reagent card 200 during operation, thereby ensuring the heating efficiency.

[0114] In some embodiments, Fig.15 and Fig.17 As shown, the end of the pressure valve body 11 close to the plug-in slot 211 is provided with the above-mentioned cavity which is recessed along the movable extension direction of the pressure valve member 12; the floating connecting member 153 includes a connecting column 154, a limiting portion 155 and an elastic portion 156; the connecting column 154 is vertically arranged in the cavity, and a conducting hole is provided on the first heat conducting plate 152. The first heat conducting plate 152 is movably sleeved on the connecting column 154 at a position between the bottom wall of the cavity and the limiting portion 155 through the conducting hole, and the connecting column 154 is located between the bottom wall of the cavity and the limiting portion 155. The elastic portion 156 is also provided at the position of the connecting column 154 between the bottom wall of the cavity and the limiting portion 155, which is used to restore the first heat conducting plate 152 to its original position after the movement. It can be understood that the first heat conducting plate 152 is floated in the cavity through the cooperation of the connecting column 154 and the elastic part 156, and the first heat conducting plate 152 at least partially extends out of the cavity, so that the first heat conducting plate 152 can adapt to the secondary positioning operation of the card pressing assembly 231 according to its own floating performance, so that the first heat conducting plate 152 and the second heat conducting plate 2313 are tightly fitted with the front and back sides of the reagent card 200.

[0115] In some embodiments, Fig.15 , Fig.18and Fig.19 As shown, the in vitro diagnostic instrument 100 also includes a stirring device 3 connected to the pressure valve device 1; the stirring device 3 includes a power component and an action member 34, the power component can drive the action member 34 to move, and when the action member 34 moves, it can form a driving force that covers at least a part of the area of ​​the plug-in slot 211, and the driving force is used to drive the passive member located in the covering area to move. It should be noted that the action member 34 can drive the passive member to move through the driving force generated by itself, wherein the passive member may not be in contact with the action member 34, that is, the passive member only needs to be located in the driving force coverage area of ​​the action member 34, and the driving force of the action member 34 can drive the passive member located in the covering area, so that the passive member can be placed inside the object to be stirred through the passive member, and the stirring operation is driven by the external action member 34. Specifically in the present embodiment, the passive component is encapsulated in the reagent chamber 210 of the reagent card 200. After the sample to be detected and the reagent flow into the reagent chamber 210 through the flow channel 220, the power component drives the action member 34 to move. Since the action member 34 can form a driving force with a coverage area, the action member 34 can drive the passive component located in the reagent chamber 210 to move through its own driving force during the movement to form a stirring function. The action member 34 does not need to extend into the reagent chamber 210 to mix and stir the sample to be detected and the reagent. Therefore, the space can be reasonably utilized to form a stirring function, and the action member 34 has the characteristics of simple structure, good stirring effect and high stirring efficiency.

[0116] In some embodiments, the power assembly includes a rotating device 31, a conversion assembly 32 and a movable part 33; the output end of the rotating device 31 is connected to the conversion assembly 32, the movable part 33 is connected to the conversion assembly 32, and the rotating device 31 drives the movable part 33 to reciprocate in a straight line direction through the conversion assembly 32; and an action member 34 is provided on the movable part 33. It can be understood that the rotating device 31 and the movable part 33 are respectively connected through the conversion assembly 32, and the conversion assembly 32 can convert the rotational motion of the rotating device 31 into a linear motion, thereby driving the movable part 33 to form a linear reciprocating motion. Therefore, the rotating device 31 can only provide a unidirectional rotational motion to make the movable part 33 form a linear reciprocating motion, without the rotating device 31 repeatedly switching forward and reverse, thereby improving the service life of the rotating device 31.

[0117] In some embodiments, Fig.19As shown, the conversion assembly 32 includes a cam 321 and a guide assembly 322; the output end of the rotating device 31 is connected to the cam 321, the movable member 33 is meshed with the cam 321, and the movable member 33 is movably arranged on the guide assembly 322. When the rotating device 31 drives the cam 321 to rotate, it can drive the movable member 33 to move linearly along the guide assembly 322; it should be noted that during the process of the rotating device 31 driving the cam 321 to rotate, the movable member 33 is always in meshing state with the cam 321. It can be understood that since the cam 321 has a convex angle, the rotating device 31 drives the cam 321 to rotate, which can drive the movable member 33 meshed with the cam 321 to move. The movable member 33 can move linearly along the guide assembly 322 under the meshing transmission of the cam 321 and under the guidance of the guide assembly 322, so that the rotational movement of the rotating device 31 can form the linear movement of the movable member 33 through the cooperation of the cam 321 and the guide assembly 322, and has the characteristics of simple structure. In addition, in other embodiments, the conversion component 32 can also drive the movable part 33 to move linearly through other components. For example, a groove that intersects and extends along the extension direction of the guide component 322 is provided on the conversion component 32, and the movable part 33 forms a linear motion under the guidance of the groove and the guide component 322. No special restrictions are made here.

[0118] In some embodiments, the conversion assembly 32 further includes a second elastic member 323, the movable member 33 is connected to the guide assembly 322 through the second elastic member 323, and the movable member 33 is always engaged with the cam 321 for transmission under the action of the second elastic member 323. Specifically, the first end of the movable member 33 is engaged with the cam 321, and the second end of the movable member 33 is connected to the guide assembly 322 through the second elastic member 323. It can be understood that when the convex angle of the cam 321 gradually rotates away from the movable member 33, the force of the second elastic member 323 makes the movable member 33 always engage with the cam 321 during the rotation of the cam 321, and drives the movable member 33 to move along the guide assembly 322 to follow the rotation of the cam 321 under the action of the second elastic member 323. Therefore, through the action of the second elastic member 323, the cam 321 and the movable member 33 can always be in a state of abutment and engagement, so as to avoid the gap between the cam 321 and the movable member 33 affecting the transmission effect.

[0119] In some embodiments, Fig.19As shown, the guide assembly 322 includes a guide member 3221 and a sliding member 3222; the guide member 3221 is arranged along the movement direction of the movable member 33, the movable member 33 is arranged on the sliding member 3222, and the sliding member 3222 is slidably arranged on the guide member 3221; specifically in this embodiment, the guide member 3221 can be a guide shaft, the sliding member 3222 can be a bearing, the bearing is movably sleeved on the guide shaft, the movable member 33 is arranged on the bearing, the movable member 33 is slidably arranged on the guide shaft through the bearing, and the bearing can improve the wear resistance and service life. It can be understood that through the sliding cooperation between the guide member 3221 and the sliding member 3222, the movable member 33 can be smoothly reciprocated along the direction of the guide member 3221, improving the smoothness and linearity of the movement of the movable member 33. Of course, in other embodiments, the guide assembly 322 can also be other components that can guide the linear motion of the movable member 33, such as a linear slide and other structures, which are not particularly limited here.

[0120] In some embodiments, the movable part 33 is provided with a driven wheel 35, and the movable part 33 is meshed with the cam 321 through the driven wheel 35. Specifically in the present embodiment, the driven wheel 35 can be a bearing, and the movable part 33 is meshed with the cam 321 through the bearing, and the bearing can improve the wear resistance and service life. It can be understood that the movable part 33 is meshed with the cam 321 through the driven wheel 35, which can reduce the position accuracy between the movable part 33 and the cam 321, and the movable part 33 and the cam 321 do not need to be aligned, and the movable part 33 can be driven to rotate through the cam 321. In addition, it should be noted that the first end of the movable part 33 can also be directly set to an arc or a semicircular structure, so that a meshing transmission structure can be formed directly through the movable part 33 and the cam 321.

[0121] In some embodiments, the action member 34 is a magnetic member, and the magnetic member can generate a magnetic attraction or magnetic repulsion that attracts or repels the passive member, and the magnetic attraction or magnetic repulsion is a driving force. It should be noted that the passive member can be a magnet that can form a magnetic attraction or magnetic repulsion with the magnetic member or a magnetic member with magnetism. It can be understood that the passive member with magnetism or magnetization is arranged inside the object to be stirred, such as the reagent chamber 210 encapsulated in the reagent card 200. At this time, the passive member can be driven to move during the activity by the action member 34 with magnetism, so that the sample to be detected and the reagent in the reagent chamber 210 can be effectively stirred. It should be noted that the action member 34 can also drive the passive member to move by other modes of action, and no special restrictions are made here.

[0122] In some embodiments, at least two magnetic members are provided, each of which has the same magnetic properties and is arranged at intervals along the extension direction of the moving direction of the movable member 33. It can be understood that by providing multiple magnetic members, the cooperation of the multiple magnetic members can form a larger range of action, which can increase the driving force and coverage of the passive member, so that the multiple passive members in the packaged state can be driven to move by the magnetic member.

[0123] In some embodiments, Fig.19 As shown, the stirring device 3 also includes a mounting seat 36, and the rotating device 31, the conversion assembly 32, the movable member 33 and the action member 34 are all arranged on the mounting seat 36, and the mounting seat 36 is arranged on the pressure valve body 11, wherein the rotating device 31 is arranged on the side of the pressure valve body 11 away from the plug-in slot 211, and the pressure valve body 11 is provided with an air avoidance hole, and the action member 34 is penetrated through the air avoidance hole and can reciprocate in the air avoidance hole, so that the driving force formed by the action member 34 is not interfered by the pressure valve body 11. It can be understood that by integrating the rotating device 31, the conversion assembly 32, the movable member 33 and the action member 34 on the mounting seat 36, the compactness of the structure of the stirring device 3 can be improved, so that the various components are integrated into one, which is convenient for installation and assembly. In addition, in this embodiment, the rotating device 31 is arranged along the Y direction, and the movable member 33 is arranged along the X direction, which can further improve the structural integration to save structural space.

[0124] In some embodiments, Figure 5 and Figure 6As shown, the insertion slot 211 includes a first slot 2111 and a second slot 2112 that are interconnected; the in vitro diagnostic instrument 100 also includes an identification module 25 and a reading module 26 disposed on the card insertion device 2, the identification module 25 being used to identify the insertion state of the first slot 2111, and the reading module 26 being used to read the information of the reagent card 200 inserted into the second slot 2112. It should be noted that the first slot 2111 is used to insert the blood collection tube 300, and the second slot 2112 is used to insert the reagent card 200, and a plurality of flow channels 220 are provided on the reagent card 200. The first slot 2111 and the second slot 2112 in the interconnected state can enable the flow channels 220 of the blood collection tube 300 inserted into the first slot 2111 and the reagent card 200 inserted into the second slot 2112 to be connected, so that the blood sample of the blood collection tube 300 can flow into the flow channel 220 of the reagent card 200 for blood sample detection. It can be understood that by setting the identification module 25 and the reading module 26 on the card insertion body 21, the identification module 25 can identify the specific position of the blood collection tube 300 inserted into the first slot 2111, so that the connection state between the blood collection tube 300 and the corresponding flow channel 220 of the reagent card 200 can be automatically obtained to control the corresponding flow channel 220 to perform the detection operation. At the same time, the information of the reagent card 200 is read by the reading module 26, and the specific type of the reagent card 200 and other related information can be obtained, so as to effectively avoid the error in the position between the blood sample entering the flow channel 220 and the error in the information of the reagent card 200, and effectively avoid affecting the detection effect and the detection process.

[0125] In some embodiments, the card body 21 is vertically provided with a first slot 2111 and a second slot 2112, and the slot, the first slot 2111 and the second slot 2112 are sequentially connected, wherein the first slot 2111 and the second slot 2112 can be an integrated slot-type structure, which is only distinguished according to different plug-in objects, or the first slot 2111 and the second slot 2112 can also be a split slot-type structure, which is not particularly limited here. The identification module 25 is arranged at a position of the card body 21 corresponding to the first slot 2111, and the reading module 26 is arranged at a position of the card body 21 corresponding to the first slot 2111 or the second slot 2112. Specifically in the present embodiment, the reagent card 200 can be connected through a blood vessel rack 310, wherein the blood vessel rack 310 is provided with a plurality of plug-in pipes 320 respectively connected to the flow channel 220 of the reagent card 200, and each plug-in pipe 320 is used to insert the blood collection tube 300; when testing is required, the reagent card 200 is inserted into the second slot 2112 through the notch, the blood vessel rack 310 is inserted into the first slot 2111, and the blood collection tube 300 is inserted into the plug-in pipe 320. At this time, the blood sample of the blood collection tube 300 can enter the flow channel 220 of the reagent card 200 through the plug-in pipe 320, so that the blood collection tube 300 can be firmly plugged into the preset position of the first slot 2111 through the blood vessel rack 310, and will not interfere with the insertion of the reagent card 200 and will not affect the conduction operation between the blood collection tube 300 and the reagent card 200 after the insertion. The type information of the reagent card 200 can be set in the reagent card 200 or in the blood vessel rack 310. Therefore, by setting the reading module 26 at the position of the card insertion body 21 corresponding to the first slot 2111 or the second slot 2112, the information of the reagent card 200 inserted into the second slot 2112 can be read.

[0126] In some embodiments, Figure 5As shown, the identification module 25 includes an infrared radiation module 251 and an infrared receiving module 252 which are arranged on the card insertion device 2, and the infrared radiation module 251 and the infrared receiving module 252 are located on opposite sides of the first slot 2111. It should be noted that, in the present embodiment, the blood vessel rack 310 is provided with a plurality of plug-in pipes 320 which are respectively connected to the flow channel 220 of the reagent card 200, and the blood vessel rack 310 has two oppositely arranged perforations on the wall of each plug-in pipe 320, and the infrared radiation module 251 and the infrared receiving module 252 are arranged corresponding to the perforations. Therefore, when the blood vessel rack 310 is not plugged with a blood collection tube 300, the infrared rays emitted by the infrared radiation module 251 can pass through the perforations and be received by the infrared receiving module 252. When the blood vessel rack 310 is plugged with a blood collection tube 300, the infrared rays emitted by the infrared radiation module 251 can pass through the perforations and be received by the infrared receiving module 252. When the blood collection tube 300 is inserted, the infrared rays emitted by the infrared radiating module 251 are blocked by the blood collection tube 300. At this time, the infrared receiving module 252 cannot receive the infrared rays emitted by the infrared radiating module 251. Therefore, the information received by the infrared receiving module 252 can be used to determine whether the blood collection tube 300 is inserted into the first slot 2111 and the specific position of the blood collection tube 300 inserted into the first slot 2111, so as to accurately obtain the connection between the blood collection tube 300 and the flow channel 220 of the reagent card 200, so as to control the corresponding flow channel 220 to perform the detection operation.

[0127] In some embodiments, Figure 5 As shown, a plurality of identification modules 25 are provided, and each identification module 25 is arranged at intervals along the length direction of the first slot 2111. It should be noted that a plurality of identification modules 25 are provided, and a plurality of infrared radiation modules 251 are provided correspondingly, and each infrared radiation module 251 is arranged at intervals along the length direction of the first slot 2111, and a plurality of infrared receiving modules 252 are provided, and each infrared receiving module 252 is arranged one by one corresponding to the infrared radiation module 251. It is understood that multiple infrared radiation modules 251 and multiple infrared receiving modules 252 can cooperate to form multiple identification modules 25, which can identify the blood collection tubes 300 plugged into various positions of the first slot 2111; specifically in the present embodiment, multiple plug-in pipes 320 are arranged on the blood vessel rack 310, and each plug-in pipe 320 corresponds to an infrared radiation module 251 and an infrared receiving module 252, so that it can be identified in real time according to the corresponding identification module 25 whether the corresponding plug-in pipe 320 is inserted into the blood collection tube 300, thereby effectively and timely identifying the insertion of each plug-in pipe 320 into the blood collection tube 300 to avoid omissions.

[0128] In some embodiments, Figure 5As shown, the reading module 26 includes an NFC reading module, which is located on one side of the first slot 2111 or the second slot 2112, and the NFC reading module is used to identify the NFC tag of the reagent card 200 inserted into the second slot 2112. It can be understood that when the reagent card 200 is inserted into the second slot 2112, the NFC tag is driven to approach the NFC reading module. When the NFC tag reaches the reading area of ​​the NFC reading module, the NFC tag can be quickly and accurately read by the NFC reading module and fed back to the control system, and the type and other related information of the reagent card 200 inserted into the second slot 2112 can be quickly identified. Therefore, the NFC tag of the reagent card 200 inserted into the second slot 2112 can be read at close range by the NFC reading module, with the characteristics of close distance, high bandwidth, low energy consumption and high security. It should be noted that in other embodiments, the reading module 26 can also use reading technologies such as RFID to read the information of the reagent card 200, which is not particularly limited here.

[0129] In some embodiments, Figure 5 As shown, the card insertion device 2 is provided with an indication device, and the indication device is used to indicate the plugging state of the first slot 2111. It can be understood that the indication device can indicate the position of the blood collection tube 300 inserted into any plugging pipe 320 through a display mode or a trigger mode, so that the operator can quickly and accurately insert the blood collection tube 300 into the designated plugging pipe 320 of the first slot 2111 according to the indication to prevent errors. Specifically in this embodiment, the indication device includes a plurality of status indicator lights 27, and the status indicator lights 27 are arranged in a one-to-one correspondence with the identification module 25. It can be understood that according to the change of the status indicator light 27 corresponding to the flow channel 220 to be detected, the corresponding blood collection tube 300 is inserted into the plugging pipe 320 corresponding to the blood vessel rack 310 to communicate with the corresponding flow channel 220 of the reagent card 200, so that the operator can accurately insert the blood collection tube 300 into the designated plugging pipe 320, and intuitively and quickly obtain the situation of the blood sample flowing into the specific flow channel 220 of the reagent card 200, effectively avoiding the occurrence of errors.

[0130] In some embodiments, Figure 22 to Figure 25As shown, the in vitro diagnostic instrument 100 also includes a gas source device 4, which includes a tank body 41 and an air circuit system 42. The tank body 41 has a first cavity 411 and a second cavity 412. The second cavity 412 is connected to the first cavity 411 through the control of the air circuit system 42, and the gas can enter the first cavity 411 from the second cavity 412. The first cavity 411 is used to connect with the flow channel 220 of the reagent card 200 for gas supply. In this embodiment, the pressure in the second chamber 412 of the tank body 41 is higher than the pressure in the first chamber 411 of the tank body 41, and the pressure in the first chamber 411 of the tank body 41 is a constant pressure to form a constant pressure chamber; it should be noted that the first chamber 411 forming a constant pressure chamber means that the pressure output value in the first chamber 411 remains basically constant, but a small fluctuation in the output value is allowed within the error allowable range of the instrument. Specifically, the pressure values ​​in the first chamber 411 and the second chamber 412 can be custom set within the range (<4500PA). In one embodiment, the pressure value in the second chamber 412 is 2600PA, and the pressure value in the first chamber 411 is (1300±10PA). It can be understood that when the gas source device 4 is used to supply gas to the flow channel 220 of the reagent card 200, the second chamber 412 can supply gas and replenish pressure to the first chamber 411 through the control of the gas circuit system 42 to maintain the dynamic constant pressure state in the first chamber 411. Through the first chamber 411, a constant pressure can be applied to the blood sample to detect the phase change process of the blood sample.

[0131] In some embodiments, the first chamber 411 is also controlled to communicate with the flow channel 220 of the reagent card 200 through the valve island device; the valve island device also includes a second valve switch, and the valve island body has at least one second gas channel, the second gas channel is set in a one-to-one correspondence with the flow channel 220 of the reagent card 200 and is controlled to communicate through the second valve switch, and the second gas channel is connected to the first chamber 411. It can be understood that by controlling the first chamber 411 to communicate with the flow channel 220 through the valve island device, each flow channel 220 of the reagent card 200 can be independently pressurized, and the pressure state in the flow channel 220 can be sensed through the above-mentioned first pressure sensor 2316. As can be seen from the above, the valve island device can independently control the extraction, intake, and air operations of the reagent card 200 by integrating multiple gas channels and valve switch components, with fast response speed, no mutual influence, and compact structure.

[0132] In some embodiments, Fig.24 As shown, the volume of the first chamber 411 is greater than the volume of the second chamber 412, so that the first chamber 411 of the tank body 41 can be supplemented with pressure through the second chamber 412, and the first chamber 411 has a large spatial buffer pressure, so that the first chamber 411 has a small fluctuation during the process of air intake and air discharge, forming a stable constant pressure state. Therefore, the air source device 4 has the characteristics of simple and compact structure and good constant pressure performance.

[0133] In some embodiments, the volume ratio of the first chamber 411 to the second chamber 412 is in the range of 2 to 4:1. Specifically, the volume ratio of the first chamber 411 to the second chamber 412 can be in the range of (2:1), 2.5:1, 3:1, 3.5:1, 4:1, etc., without any particular limitation. It can be understood that the volume ratio of the first chamber 411 to the second chamber 412 within this range can ensure that the first chamber 411 is in a better constant pressure stability, and can quickly adjust to the preset pressure value when the first chamber 411 is below or above the preset pressure value, thereby reducing the pressure volatility of the first chamber 411.

[0134] In some embodiments, Fig.23 As shown, the tank body 41 has a first opening end 413 at a position corresponding to the first cavity 411, and has a second opening end 414 at a position corresponding to the second cavity 412; the gas source device 4 also includes a first end cover 415 and a second end cover 416; the first end cover 415 is sealed and connected to the tank body 41 at a position corresponding to the first opening end 413, and the second end cover 416 is sealed and connected to the tank body 41 at a position corresponding to the second opening end 414. It should be noted that, in the present embodiment, the tank body 41 includes four connecting plates and a partition, and the four connecting plates enclose a tank body 41 having open ends at both ends. The partition is vertically inserted into the tank body 41 to separate the tank body 41 into a first cavity 411 and a second cavity 412, wherein the open end corresponding to the left side of the tank body 41 is the above-mentioned first open end 413, and the open end corresponding to the right side of the tank body 41 is the above-mentioned second open end 414, and the first open end 413 is sealed and connected by a first end cover 415, so that the first end cover 415, the four connecting plates and the partition cooperate to form a first cavity 411 in a sealed state, and the second end cover 416, the four connecting plates and the partition cooperate to form a second cavity 412 in a sealed state. Therefore, the tank body 41 can form a sealed first cavity 411 and a sealed second cavity 412 through the cooperation of the first end cap 415 and the second end cap 416. On the other hand, the tank body 41 is a non-integrated sealing structure, which can facilitate the assembly of the various components of the gas source device 4, reduce the difficulty of assembly, and facilitate disassembly and maintenance. Of course, in other embodiments, the tank body 41 can also be an integrated sealing structure, which is not particularly limited here.

[0135] In some embodiments, Fig.23As shown, the air source device 4 also includes a first sealing member 417, and a first annular groove 4151 adapted to the first opening end 413 is opened on the side of the first end cover 415 close to the tank body 41, and the first opening end 413 is sealed and inserted in the first annular groove 4151 through the first sealing member 417; and / or, the air source device 4 also includes a second sealing member 418, and a second annular groove adapted to the second opening end 414 is opened on the side of the second end cover 416 close to the tank body 41, and the second opening end 414 is sealed and inserted in the second annular groove through the second sealing member 418. It can be understood that the first open end 413 of the tank body 41 is sealed and connected to the first annular groove 4151 of the first end cover 415 through the first seal 417, and the second open end 414 is sealed and connected to the second annular groove of the second end cover 416 through the second seal 418. Therefore, the distance between the first end cover 415, the second end cover 416 and the tank body 41 can be controlled by size, which can effectively ensure that the compression range of the first seal 417 and the second seal 418 is about 20%, thereby effectively reducing the difficulty of assembly and ensuring good airtightness.

[0136] In some embodiments, the tank body 41 is a plastic tank body. Specifically in this embodiment, the tank body 41 can be made of plastic materials such as polyoxymethylene resin and polyamide fiber, which can effectively avoid the influence of ambient temperature on the pressure values ​​in the first cavity 411 and the second cavity 412 of the tank body 41.

[0137] In some embodiments, Fig. 22 and Fig.25 As shown, the gas circuit system 42 includes a main gas circuit 421, a branch gas circuit 422 and a one-way valve 423; the first chamber 411 and the second chamber 412 are each pressurized by a gas generating device external to the main gas circuit 421, the first chamber 411 and the second chamber 412 are connected by the branch gas circuit 422, and the one-way valve 423 is arranged on the branch gas circuit 422 to enable gas to enter the first chamber 411 from the second chamber 412. It can be understood that the first chamber 411 and the second chamber 412 can each be connected to an external gas supply device through a main gas path 421. When the gas source device 4 is just started to perform the initial air intake process, the first chamber 411 and the second chamber 412 can first be quickly pressurized to a gas pressure range near the preset value through the main gas path 421, and then the sub-gas path 422 is opened by controlling the one-way valve 423. The second chamber 412 supplies gas to the first chamber 411 through the sub-gas path 422 to replenish the pressure, so as to maintain the dynamic constant pressure state in the first chamber 411. The second chamber 412 is pressurized through the main gas path 421. Therefore, the first chamber 411 is quickly pressurized by connecting the main gas path 421 to an external gas supply device, and the first chamber 411 is connected to the second chamber 412 through the sub-gas path 422 for pressure replenishment, so that the first chamber 411 can be quickly pressurized to a preset constant pressure state, and can be in a dynamic constant pressure state for a long time, thereby improving the constant pressure stability of the first chamber 411.

[0138] In some embodiments, Fig.25 As shown, the gas circuit system 42 also includes a first pressure relief gas circuit 424, a first switch valve 425 and a first speed regulating valve 426; the first chamber 411 is connected to the first pressure relief gas circuit 424 through the control of the first switch valve 425, wherein the first switch valve 425 may be a solenoid valve, and the first pressure relief gas circuit 424 is provided with a first speed regulating valve 426. It can be understood that when the pressure in the first chamber 411 exceeds the preset range value, the first switch valve 425 can be opened at this time, so that the pressure in the first chamber 411 is discharged through the first pressure relief gas circuit 424, and the flow rate of the first pressure relief gas circuit 424 is adjusted through the first speed regulating valve 426 to achieve slow pressure relief in the first chamber 411 and ensure a dynamic constant pressure state in the first chamber 411.

[0139] In some embodiments, Fig.25 As shown, the gas circuit system 42 also includes a second pressure relief gas circuit 427, a second switch valve 428 and a second speed regulating valve 429; the second chamber 412 is controlled to communicate with the second pressure relief gas circuit 427 through the second switch valve 428, wherein the second switch valve 428 may be a solenoid valve, and the second pressure relief gas circuit 427 is provided with a second speed regulating valve 429. It can be understood that when the pressure in the second chamber 412 exceeds the preset range value, the second switch valve 428 can be opened at this time, so that the pressure in the second chamber 412 is discharged through the second pressure relief gas circuit 427, and the flow rate of the second pressure relief gas circuit 427 is adjusted through the second speed regulating valve 429, so as to achieve slow pressure relief in the second chamber 412, reduce the flow rate of the supplementary gas in the second chamber 412, and further ensure the pressure fluctuation in the first chamber 411; therefore, through the cooperation between the first speed regulating valve 426 and the second speed regulating valve 429, the constant pressure stability in the first chamber 411 can be effectively guaranteed, and the first chamber 411 can be effectively guaranteed to be in a dynamic constant pressure state for a long time.

[0140] In some embodiments, Fig.25As shown, the gas circuit system 42 also includes a third pressure relief gas circuit 431 and a third switch valve 432, and the third pressure relief gas circuit 431 is controlled to communicate with the first chamber 411 through the third switch valve 432; it can be understood that after the gas source device 4 completes the gas supply, the third pressure relief gas circuit 431 can be controlled to communicate with the first chamber 411 through the third switch valve 432 to achieve rapid pressure relief in the first chamber 411. And / or, the gas circuit system 42 also includes a fourth pressure relief gas circuit 433 and a fourth switch valve 434, and the fourth pressure relief gas circuit 433 is controlled to communicate with the second chamber 412 through the fourth switch valve 434; it can be understood that after the gas source device 4 completes the gas supply, the fourth pressure relief gas circuit 433 can be controlled to communicate with the second chamber 412 through the fourth switch valve 434 to achieve rapid pressure relief in the second chamber 412. It should be noted that the third switch valve 432 and the fourth switch valve 434 can be switches that can automatically open and close, such as solenoid valves.

[0141] In some embodiments, Fig.25 As shown, the gas circuit system 42 also includes a second pressure sensor 435 and a fifth switch valve 436, and the second pressure sensor 435 is controlled to communicate with the first chamber 411 through the fifth switch valve 436. It can be understood that the second pressure sensor 435 is controlled to communicate with the first chamber 411 through the fifth switch valve 436, so that the second pressure sensor 435 can achieve air calibration in the first chamber 411, and the fifth switch valve 436 is in a normally closed state. And / or, the gas circuit system 42 also includes a third pressure sensor 437 and a sixth switch valve 438, and the third pressure sensor 437 is controlled to communicate with the second chamber 412 through the sixth switch valve 438; it can be understood that the third pressure sensor 437 is controlled to communicate with the second chamber 412 through the sixth switch valve 438, so that the third pressure sensor 437 can achieve air calibration in the second chamber 412, and the sixth switch valve 438 is in a normally closed state, wherein the fifth switch valve 436 and the sixth switch valve 438 can both be solenoid valves. Therefore, through the cooperation of the second pressure sensor 435 and the third pressure sensor 437, the first cavity 411 and the second cavity 412 can be calibrated to the air, and the consistency of the initial states of the first cavity 411 and the second cavity 412 can be ensured. In addition, the gas source device 4 also includes a circuit board arranged on the tank body 41, and the circuit board is used to control the operation of the gas circuit system 42, so that the pressure state in the first cavity 411 and the second cavity 412 is maintained within a preset range. In addition, the gas source device 4 also includes an absolute pressure sensor arranged on the circuit board, and the absolute pressure sensor is used to sense the altitude and ambient temperature of the gas source device 4, so that the gas source device 4 can automatically perform air calibration on the first cavity 411 and the second cavity 412 according to its own position, and further ensure the consistency of the initial states of the first cavity 411 and the second cavity 412.

[0142] In some embodiments, Figure 2and Fig.26 As shown, the in vitro diagnostic instrument 100 includes at least two independently arranged detection mechanisms 10, each detection mechanism 10 is arranged side by side; each detection mechanism 10 includes the pressure valve device 1, the card insertion device 2, the stirring device 3 and the gas source device 4. It can be understood that the card insertion device 2 of each detection mechanism 10 can be inserted with a reagent card 200, and cooperate with the multiple flow channels 220 of the reagent card 200, so that multiple detection items can be integrated in an in vitro diagnostic instrument 100, and each flow channel 220 of a reagent card 200 can be independently detected, so that multiple samples can be independently and simultaneously detected in an in vitro diagnostic instrument 100, the operation is simple, and the detection efficiency can be effectively improved to achieve high-throughput detection.

[0143] In some embodiments, Figure 2 As shown, two detection mechanisms 10 are provided, and the two detection mechanisms 10 are arranged side by side along the first direction, and the pressure valve device 1 and the air source component are arranged on opposite sides of the card insertion device 2 along the second direction. Specifically in this embodiment, the two detection mechanisms 10 are both arranged on the mounting frame 5, wherein the two detection mechanisms 10 are arranged on the mounting frame 5 along the X-axis direction, and the X-axis direction is the first direction, and the pressure valve device 1, the card insertion device 2 and the air source device 4 are arranged on the mounting frame 5 along the Y-axis direction of the mounting frame 5, and the Y-axis direction is the second direction, so that two detection mechanisms 10 can be integrated on one mounting frame 5, the compactness of the overall structure is improved, and the mutual interference between the various components of the detection mechanisms 10 is effectively avoided. In conjunction with the four flow channels 220 of the reagent card 200, the in vitro diagnostic instrument 100 can simultaneously and independently realize the detection operation of eight samples, further improving the detection efficiency.

[0144] In some embodiments, Figure 2 As shown, the mounting frame 5 includes a frame body 53 and a first layer body 54 and a second layer body 55 arranged on the frame body 53, the first layer body 54 is located above the second layer body 55, the detection mechanism 10 is located on the first layer body 54, and the plunger pump 6 is located on the second layer body 55. It can be understood that the frame body 53 forms a layered structure, which enables the detection mechanism 10 and the plunger pump 6 to be arranged correspondingly, facilitates the plunger pump 6 to pump air to the reagent card 200, and further improves the compactness of the structure.

[0145] This embodiment also provides a control method of an in vitro diagnostic instrument 100. The control method is based on the in vitro diagnostic instrument 100 as described above and includes the following steps:

[0146] Insert the reagent card 200 into the insertion slot 211 of the card insertion device 2, wherein the reagent card 200 has at least one flow channel 220 covered by a covering film layer 240;

[0147] At least one valve member 12 of the valve pressure device 1 is controlled to move relative to the card insertion device 2 to extend into the insertion slot 211 or extend out of the insertion slot 211; after the valve member 12 extends into the insertion slot 211, it abuts against the reagent card 200 and squeezes the covering film layer 240 of the reagent card 200 to block the flow channel 220; after the valve member 12 extends out of the insertion slot 211, it is separated from the reagent card 200, and the flow channel 220 is connected. It can be understood that the in vitro diagnostic instrument 100 is movably inserted into the card insertion device 2 through the pressure valve component 12, and the pressure valve component 12 can extend into the insertion slot 211 of the card insertion device 2 to abut against the reagent card 200, so that when the pressure valve component 12 moves relative to the card insertion device 2 to extend into the insertion slot 211, the pressure valve component 12 can squeeze the covering film layer 240 on the reagent card 200. After the extrusion deformation, the covering film layer 240 can fit the flow channel hole 230 of the reagent card 200, and can block the flow channel 220 of the reagent card 200 to disconnect. Therefore, each pressure valve component 12 can realize the independent opening or disconnection of each flow channel 220, thereby realizing the precise control of the opening or disconnection of each flow channel 220.

[0148] The following is a brief description of the process of detecting thromboelastograms using the in vitro diagnostic instrument 100 in one embodiment:

[0149] For ease of understanding, when the in vitro diagnostic instrument 100 is used for thromboelastometry detection, the in vitro diagnostic instrument 100 is a thromboelastometry detection device, and the detection principle of the thromboelastometry detection device is: by applying a constant pressure to the blood sample, for example, applying a constant pressure every once in a while, as the blood sample gradually solidifies from a liquid state to a solid state in the sample placement area, the pressure on the blood sample during the phase change process will gradually decrease, so the pressure in the sample placement area can be converted to a detection curve according to the change in the output pressure signal over time through the pressure change trend in the sample placement area, and the detection curve can characterize the phase change process of the blood sample. Specifically, when the in vitro diagnostic instrument 100 is a thromboelastometry detection device, the thromboelastometry detection device includes a card insertion device 2, a pressure valve device 1, a stirring device 3, an air source device 4, and a valve island device. Among them, the card insertion device 2 is used to insert the reagent card 200 to be tested, the pressure valve device 1 is used to control the opening or disconnection of the flow channel 220 of the reagent card 200, the stirring device 3 is used to fully stir the sample to be tested and the reagent passed into the reagent card 200, the air source device 4 is used to apply a constant pressure to the sample to be tested, and the valve island device is used to control the vacuum or pressurization operation of the reagent card 200. The above steps can be automatically controlled by the control system to form automated detection.

[0150] The in vitro diagnostic instrument 100 is a thromboelastometry detection device, and the detection process for thromboelastometry detection is as follows:

[0151] After the reagent card 200 and the blood vessel rack 310 are connected, the various flow channels 220 of the reagent card 200 are connected with the various plug-in pipes 320 of the blood vessel rack 310; the reagent card 200 is placed downward on the plug-in slot 211, the direction of the reagent card 200 is adjusted, and the reagent card 200 is pressed down. The reagent card 200 and the blood vessel rack 310 push the rotating plate 241 to open and insert it into the plug-in slot 211. At this time, the reagent card 200 enters the second slot 2112, and the blood vessel rack 310 enters the first slot 2111. The first positioning member 221 elastically extends into the second slot 2112 along the front of the reagent card 200, and the third positioning member 222 elastically extends into the second slot 2112 along the side of the reagent card 200, and the reagent card 200 is initially positioned in the Y-axis and X-axis directions.

[0152] The reagent card 200 is inserted into the bottom of the second slot 2112 and compresses the elastic mounting part 223. When the external force is removed, the elastic mounting part 223 is reset and drives the reagent card 200 to move upward until the locking hole of the reagent card 200 is opposite to the elastic self-locking rod. The elastic self-locking rod extends out and inserts into the locking hole of the reagent card 200, completing the initial positioning of the reagent card 200 in the Z-axis direction. At this time, the insertion of the reagent card 200 can be detected by the in-place sensor.

[0153] The NFC reading module reads the NFC tag corresponding to the reagent card 200 , obtains the type of the reagent card 200 , and displays it on the touch screen 51 .

[0154] The second driving device 233 pushes the card pressing assembly 231 to move along the back side of the reagent card 200 until it extends into the second slot 2112. The second positioning member 232 on the card pressing assembly 231 is inserted into the corresponding card fixing hole on the back side of the reagent card 200. At this time, the second positioning member 232 completes the secondary positioning of the reagent card 200, and cooperates with the first positioning member 221 to extend the reagent card 200 into the second slot 2112 in the front direction, so that the reagent card 200 can be doubly positioned and locked in the front and back directions.

[0155] Insert the blood collection tube 300 into the plug-in pipe 320 of the blood vessel stand 310, and the status indicator light 27 on the identification module 25 lights up. According to the prompt of the status indicator light 27, insert the blood collection tube 300 into the corresponding plug-in pipe 320 to communicate with the flow channel 220 corresponding to the reagent card 200, and determine whether the blood collection tube 300 is placed in the corresponding position according to whether the infrared light emitted by the identification module 25 is blocked by the blood collection tube 300;

[0156] After the reagent card 200 is positioned, locked and identified, the second heating device of the card pressing assembly 231 and the first heating device 15 of the valve pressing device 1 jointly heat the reagent card 200. Through the control of the first temperature sensing component 2314, the temperature in the second slot 2112 is quickly raised to 37±0.5°C. The heating time is about 1 minute. When the temperature is reached, the temperature is continuously controlled to 37±0.2°C.

[0157] The air inlet channel 2315 of the card pressing plate 2311 squeezes the covering film layer 240 on the reagent card 200 to block the corresponding air holes of the reagent card 200 to form a sealed state. The valve pressing device 1 blocks the flow channel hole 230 of the reagent card 200 through the valve pressing member 12 to form a blocked state of the flow channel 220. At this time, the air in the reagent card 200 is extracted through the plunger pump 6 to form a negative pressure environment in the reagent card 200, and the negative pressure detection element in the valve island device senses whether there is a gas leakage.

[0158] The blood sample in the blood collection tube 300 enters the flow channel 220 of the reagent card 200 and flows into the reagent chamber 210 pre-stored with the reagent for mixing. The stirring device 3 on the pressure valve body 11 stirs and mixes the blood sample and the reagent in the reagent card 200 according to the detection process. After stirring for 1 minute, the pressure valve member 12 of the detection area of ​​the control reagent card 200 is opened, and the blood sample enters the detection area from the reagent chamber 210. The quantitative control of the blood sample is completed through the detection of the sensing element 14.

[0159] The valve island device controls the gas in the first chamber 411 of the tank 41 to enter the flow channel 220 of the reagent card 200, and the process of air intake-exhaust is repeated periodically, and the terminal data of the detection area of ​​the reagent card 200 is recorded by the first pressure sensor 2316 on the card pressing plate 2311. As the blood coagulation and fibrinolysis proceed, the blood elasticity changes, and the pressure value of the detection area also changes. The data collected by the pressure sensor is processed by hardware and software to generate corresponding graphics, forming a corresponding thromboelastogram graphic of the tested blood sample.

[0160] After the test is completed, the print function can be selected on the touch screen 51, and the test report of the tested blood sample is printed out through the printer 52 as a completed record.

[0161] When quoting drawing descriptions, new features that appear are described; in order to avoid repeated quotations of drawings resulting in less concise descriptions, features that have been described clearly will not be quoted in the drawings one by one.

[0162] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the present invention, and to fully describe the technical solution, purpose and effect of the present invention. Its purpose is to make the public understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the scope of protection of the present invention.

[0163] The above embodiments are not exhaustive enumerations of the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. An in vitro diagnostic instrument, characterized in that The in vitro diagnostic instrument comprises a card insertion device and a pressure valve device; the card insertion device has a plug-in slot for inserting a reagent card; the pressure valve device comprises at least one pressure valve member, each of which is movably arranged in the card insertion device, and the pressure valve member can extend into the plug-in slot to abut against the reagent card; The pressure valve device also includes a pressure valve body and at least one first driving device; the pressure valve body is at least partially placed in the plug-in slot, the pressure valve body is movably connected to the pressure valve member, the first driving device and the pressure valve member are arranged one by one, and each of the first driving devices can drive a pressure valve member to move relative to the pressure valve body to extend into the plug-in slot; when the pressure valve member extends into the plug-in slot, the pressure valve member can squeeze the covering film layer on the reagent card, and the covering film layer can fit the flow channel hole of the reagent card after being squeezed and deformed to block the flow channel; The output end of the first driving device is at least partially arranged opposite to the pressure valve member, and the output end of the first driving device can move to press against the pressure valve member; The pressure valve device also includes a first elastic member; the pressure valve member is provided with a blocking member, the first elastic member is arranged between the blocking member and the pressure valve body, and the force of the first elastic member acting on the pressure valve member is opposite to the force of the first driving device.

2. The in vitro diagnostic instrument according to claim 1, characterized in that: The pressure valve body is provided with at least one penetrating connection hole, and each of the connection holes is arranged in an array structure in the pressure valve body; the connection holes are arranged in a one-to-one correspondence with the pressure valve components, and the pressure valve components are movably inserted into the connection holes.

3. The in vitro diagnostic instrument according to claim 1, characterized in that: At least one sensing element for sensing liquid flow is also arranged at one end of the pressure valve body close to the plug-in slot, and the sensing element is embedded in the pressure valve body.

4. The in vitro diagnostic instrument according to claim 1, wherein: The pressure valve device also includes a first heating device; the first heating device includes a first heating film and a first heat conducting plate, the first heat conducting plate is connected to one end of the pressure valve body close to the plug-in slot, and the first heating film is arranged on a side of the first heat conducting plate close to the pressure valve body.

5. The in vitro diagnostic instrument according to claim 1, wherein: The in vitro diagnostic instrument further comprises a stirring device connected to the pressure valve device; The stirring device includes a power component and an action member, wherein the power component can drive the action member to move, and when the action member moves, a driving force can be generated to cover at least a part of the plug-in slot, and the driving force is used to drive the passive member located in the covering area to move.

6. The in vitro diagnostic instrument according to claim 5, characterized in that: The power assembly includes a rotating device, a conversion assembly and a movable part; The output end of the rotating device is connected to the conversion assembly, the movable part is connected to the conversion assembly, and the rotating device drives the movable part to reciprocate along a straight line through the conversion assembly; the active part is provided on the movable part.

7. The in vitro diagnostic instrument according to claim 6, characterized in that: The conversion assembly includes a cam and a guide assembly; the output end of the rotating device is connected to the cam, the movable part is meshed with the cam, and the movable part is movably arranged on the guide assembly. When the rotating device drives the cam to rotate, it can drive the movable part to move linearly along the guide assembly.

8. The in vitro diagnostic instrument according to claim 7, characterized in that: The conversion assembly also includes a second elastic member, the movable member is connected to the guide assembly via the second elastic member, and the movable member is always meshed with the cam for transmission under the action of the second elastic member.

9. The in vitro diagnostic instrument according to claim 5, characterized in that: The active member is a magnetic member, and the magnetic member can generate a magnetic attraction force or a magnetic repulsion force to attract or repel the passive member, and the magnetic attraction force or the magnetic repulsion force is the driving force.

10. The in vitro diagnostic instrument according to claim 1, wherein: The card insertion device comprises a card insertion body and a first positioning component and a second positioning component movably connected to the card insertion body; The card insertion body has the insertion slot; the first positioning component can at least partially extend into the insertion slot to perform a primary positioning on the reagent card inserted into the insertion slot, and the second positioning component can at least partially extend into the insertion slot to perform a secondary positioning on the reagent card inserted into the insertion slot.

11. The in vitro diagnostic instrument according to claim 10, characterized in that: The first positioning component includes a first positioning member, which is arranged on the card insertion body and elastically extends into the insertion slot along the front side of the card insertion body; the second positioning component includes a card pressing component and a second positioning member, the card pressing component is movably arranged on the back side of the card insertion body, and the second positioning member is arranged on a side of the card pressing component close to the insertion slot.

12. The in vitro diagnostic instrument according to claim 11, characterized in that: The first positioning assembly further includes a third positioning member, which is disposed on the card inserting body and elastically extends into the inserting slot along the side surface of the card inserting body.

13. The in vitro diagnostic instrument according to claim 11, characterized in that: The second positioning assembly further comprises a second driving device, and the second driving device drives the card pressing assembly to reciprocate in a direction approaching or moving away from the plug-in slot.

14. The in vitro diagnostic instrument according to claim 13, wherein: The card pressing assembly comprises a card pressing plate and a second heating device; the output end of the second driving device is connected to the card pressing plate, and the second heating device is arranged on a side of the card pressing plate facing the plug-in slot.

15. The in vitro diagnostic instrument according to claim 14, characterized in that: The second heating device includes a second heating film and a second heat conducting plate, the second heat conducting plate is connected to the pressing plate, and the second heating film is arranged on a side of the second heat conducting plate close to the pressing plate.

16. The in vitro diagnostic instrument according to claim 14, wherein: The in vitro diagnostic instrument also includes an air extraction power source; the card pressing plate also has at least one air inlet channel, the air inlet channel has an air inlet end and an air outlet end, the air inlet end at least partially extends out of the card pressing plate and faces the plug-in slot, and the end of the air inlet end extending out of the card pressing plate is an annular structure, the air inlet end is used to be sealed and connected to the air hole of the reagent card, and the air outlet end is connected to the air extraction power source.

17. The in vitro diagnostic instrument according to claim 14, wherein: The clamping plate is also provided with at least one pressure detection hole; the in vitro diagnostic instrument further comprises a first pressure sensor and a sealing ring, and the first pressure sensor is sealed in the pressure detection hole through the sealing ring.

18. The in vitro diagnostic instrument according to claim 1, wherein: The insertion slot includes a first slot and a second slot that are interconnected; the in vitro diagnostic instrument also includes an identification module and a reading module arranged on the card insertion device, the identification module is used to identify the insertion status of the first slot, and the reading module is used to read the information of the reagent card inserted into the second slot.

19. The in vitro diagnostic instrument according to claim 18, characterized in that: The card insertion device includes a card insertion body, a notch is provided at the top of the card insertion body, the first slot and the second slot are vertically provided on the card insertion body, and the notch, the first slot and the second slot are connected in sequence, the identification module is arranged at a position of the card insertion body corresponding to the first slot, and the reading module is arranged at a position of the card insertion body corresponding to the first slot or the second slot.

20. The in vitro diagnostic instrument of claim 1, wherein: The in vitro diagnostic instrument also includes an air source device, which includes a tank body and an air circuit system. The tank body has a first cavity and a second cavity. The second cavity is connected to the first cavity through the control of the air circuit system. The first cavity is used to connect to the flow channel of the reagent card for air supply. The volume of the first cavity is greater than the volume of the second cavity.

21. The in vitro diagnostic instrument according to claim 20, characterized in that: The gas path system includes a main gas path, a branch gas path and a one-way valve; the first chamber and the second chamber are each pressurized by a gas generating device external to the main gas path, the first chamber and the second chamber are connected through the branch gas path, and the one-way valve is arranged on the branch gas path to enable gas to enter the first chamber from the second chamber.

22. A method for controlling an in vitro diagnostic instrument, characterized in that: The control method is based on the in vitro diagnostic instrument according to any one of claims 1 to 21, comprising the following steps: Inserting a reagent card into the insertion slot of the card insertion device, wherein the reagent card has at least one flow channel covered by a covering film layer; At least one pressure valve component of the pressure valve device is controlled to move relative to the card insertion device to extend into the insertion slot or extend out of the insertion slot; after the pressure valve component extends into the insertion slot, it abuts against the reagent card and squeezes the covering film layer of the reagent card to block the flow channel; after the pressure valve component extends out of the insertion slot, it is separated from the reagent card, and the flow channel is in a connected state.

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