Kit for blood gas analyzer and blood gas analyzer

Abstract

The application provides a kit for a blood gas analyzer and the blood gas analyzer, the kit comprising: a box body and a valve body assembly, the box body being provided with a containing cavity for accommodating a liquid bag; the valve body assembly being provided with a first channel port and a second channel port, the first channel port being used for connecting with the liquid bag, the second channel port being used for connecting with a channel assembly, the channel assembly being used for outputting liquid of the liquid bag, a liquid channel being formed between the first channel port and the second channel port; a switch assembly comprising a first part and a second part, the first part being used for being moved by external force, the second part being moved under the drive of the first part and acting on the liquid channel to make the liquid channel closed or communicated, the channel assembly being at least partially located in a space between the first part and the second part. The application can solve the problem of mis-opening or closing caused by mis-touching the valve body assembly.

Description

Technical Field

[0001] This application relates to the field of analytical instruments, and in particular to reagent kits and blood gas analyzers. Background Technology

[0002] With the advancement of analytical technology, blood gas analyzers can utilize their sampling components to acquire samples or other reagents, which are then input into the analyzer's detection components. During the testing process of these blood gas analyzers, the valve assembly connects to a liquid bag, allowing the liquid within the bag to enter the analyzer for measurement and analysis. Waste liquid generated during these analytical operations flows into the liquid bag.

[0003] Currently, valve assemblies are typically opened or closed by mechanically pressing specific parts of the assembly. However, valve assemblies are usually connected to detection components via pipe fittings. When the pipe fittings are connected to the valve assembly, they may accidentally touch specific parts of the valve assembly, causing the valve assembly to open or close incorrectly. Utility Model Content

[0004] The technical problem this application aims to solve is how to provide reagent kits and blood gas analyzers that can resolve the issue of accidental opening or closing of valve components due to accidental contact.

[0005] This application provides a reagent kit for a blood gas analyzer. The reagent kit includes: a box body with a receiving cavity containing a liquid bag; a valve assembly with a first channel port and a second channel port, the first channel port being connected to the liquid bag and the second channel port being connected to a channel assembly for discharging liquid from the liquid bag, forming a liquid channel between the first and second channel ports; and a switch assembly including a first part and a second part, the first part being movable in response to external force and the second part being movable under the action of the first part, acting on the liquid channel to close or open it, with the channel assembly located in the space between the first and second parts.

[0006] This application provides a blood gas analyzer, including: a device body; a reagent kit, which docks with the device body of the blood gas analyzer; the reagent kit includes: a box body with a receiving cavity for containing a liquid bag; a valve assembly with a first channel port and a second channel port, the first channel port for connecting to the liquid bag, the second channel port for docking with a channel assembly for docking with a sample test card of the blood gas analyzer, a liquid channel being formed between the first channel port and the second channel port; and a switch assembly including a first part and a second part, the first part being movable in response to external force, the second part being movable under the action of the first part and acting on the liquid channel to close or open it, a portion of the channel assembly being located in the space between the first part and the second part.

[0007] In this embodiment, part of the channel component is located in the space between the first part and the second part, so that the installation of the channel component will not affect the first part of the switch component, and there will be no problem of accidental opening or closing due to accidental contact with the valve component during the installation of the pipeline component. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0009] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the blood gas analyzer of this application;

[0010] Figure 2 This is a partial exploded structural diagram of the blood gas analyzer of this application;

[0011] Figure 3 yes Figure 2 The diagram shows a three-dimensional structure of one embodiment of the reagent kit.

[0012] Figure 4 yes Figure 3 The diagram shows a partial exploded structure of the reagent kit.

[0013] Figure 5 yes Figure 4 A three-dimensional structural schematic diagram of the liquid inlet valve;

[0014] Figure 6 yes Figure 5 The diagram shows the exploded structure of the liquid inlet valve.

[0015] Figure 7 yes Figure 5 A schematic diagram of the cross-section aa of the liquid-passing valve;

[0016] Figure 8 yes Figure 6 A three-dimensional structural schematic diagram of an embodiment of the sealing component shown;

[0017] Figure 9 yes Figure 5 The exploded structural diagram of the valve body assembly and the switch assembly shown;

[0018] Figure 10 yes Figure 5 A three-dimensional structural diagram of the docking entity shown;

[0019] Figure 11 yes Figure 4A three-dimensional structural schematic diagram of the connecting pipe fitting shown;

[0020] Figure 12 yes Figure 3 The diagram shows an enlarged view of part A of the reagent kit after the end caps have been removed.

[0021] Figure 13 yes Figure 3 The diagram shows a partial structural schematic of the cross-section bb of the reagent kit. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0023] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "featured," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] With the advancement of analytical technology, blood gas analyzers can utilize sampling components to acquire samples and / or other reagents. These sampling components are then connected to the blood gas analyzer's docking slot, allowing the samples and / or other reagents to be input into the blood gas analyzer's detection component via tubing within the docking slot. During the testing process of related blood gas analyzers, the analyzer's valve assembly connects to a liquid bag, enabling the liquid within the bag to enter the blood gas analyzer for measurement and analysis, and allowing waste liquid generated within the analyzer to flow into the liquid bag.

[0026] When the valve assembly is connected to the liquid bag, the channel is connected by connecting the inlet of the valve assembly to the outlet of the liquid bag. In related technologies, difficulties in connecting the inlet and outlet often occur, and problems such as poor connection and leakage are also prone to occur. Furthermore, in these technologies, the valve assembly can easily generate air bubbles in the liquid flowing through it during operation, thus affecting the analytical accuracy of the blood gas analyzer.

[0027] In order to improve or solve the above technical problems, this application proposes at least the following embodiments.

[0028] like Figure 1-2 As shown, this application proposes a blood gas analyzer 1. The blood gas analyzer 1 may include a device body 10 and a reagent kit 20. The reagent kit 20 is interchangeably connected to the device body 10.

[0029] In some embodiments, the device body 10 may include: a sampling component (not shown), a sample analysis component (not shown), a control module (not shown), a data processing module (not shown), and a display component (not shown). The sample analysis component is used to detect samples using a test card and reagents introduced into the test card. The sampling component is used to extract and deliver liquids from the reagent kit or external sources to the test card; it is understood that the sampling component may be located on the reagent kit 20. That is, the sampling component may not be present on the device body 10. The control module is used to control the liquid extraction and detection processes. The data processing module is used to process and analyze the data generated during detection to obtain corresponding detection results. The display component is used to display information such as the detection results.

[0030] Optionally, such as Figure 3-4 As shown, in some embodiments, this application provides a reagent kit 20 for a blood gas analyzer 1. The reagent kit 20 includes a kit body 21, a channel assembly 250, and a liquid inlet valve 22. The kit body 21 has a receiving cavity containing a liquid bag 24, which may include any one of a standard solution bag, a cleaning solution bag, and a waste solution bag. The liquid inlet valve 22 is disposed on the kit body 21 and located between the liquid bag 24 and the channel assembly 250. The liquid inlet valve 22 is used to connect to both the liquid bag 24 and the channel assembly 250, respectively. The channel assembly 250 connects to a sample analysis component, and the liquid inlet valve 22 is used to selectively connect or disconnect the channel assembly 250 and the liquid bag 24.

[0031] Specifically, the liquid bag 24, channel assembly 250, and liquid inlet valve 22 are all mounted on the main body 21. This arrangement effectively reduces the space occupied by the flow-guiding components such as the channel assembly 250 and liquid inlet valve 22 on the main body 10. Furthermore, the flow-guiding components such as the liquid bag 24, channel assembly 250, and liquid inlet valve 22 in the reagent kit 20 are prone to malfunction or damage. Therefore, by integrating these components onto the main body 21, when maintenance or replacement of these components is required, only the individual reagent kit 20 needs to be removed, and the liquid bag 24, channel assembly 250, and liquid inlet valve 22 can be repaired or replaced without disassembling the main body 10, thus effectively reducing the maintenance cost of the blood gas analyzer 1.

[0032] Furthermore, the channel assembly 250 and the liquid inlet valve 22 are disposed on the box body 21, meaning that the device body 10 does not have a fluid passage, such as the liquid channel 220g (e.g. Figure 7 As shown), gas channels and flow channels (flow channels can be understood as fluid channels set in channel assembly 250) enable the reagent kit 20 to be connected to the liquid path of the test card, and there is no liquid path connection between the reagent kit 20 and the device body 10 outside the test card. This effectively improves the convenience of docking between the reagent kit 20 and the device body 10, and also effectively avoids leakage when the reagent kit 20 and the device body 10 are docked.

[0033] Optionally, such as Figure 5-7 As shown, in some embodiments, the liquid inlet valve 22 includes a valve body assembly 220 and a switching assembly 221.

[0034] The valve body assembly 220 is provided with a first channel port 220a and a second channel port 220b. The first channel port 220a is used to connect to the liquid bag 24, and the second channel port 220b is used to output liquid. A liquid channel 220g is formed between the first channel port 220a and the second channel port 220b.

[0035] Furthermore, the switching assembly 221 includes a movable element 2210 (in some embodiments, the movable element 2210 is also referred to as the second part of the switching assembly 221), which is capable of deforming at least a portion of the liquid channel 220g, thereby closing or opening the liquid channel 220g, thus selectively disconnecting or connecting the channel assembly 250 and the liquid bag 24. For example, when the blood gas analyzer 1 needs to analyze a sample, the movable element 2210 can control the liquid channel 220g to open, so that the liquid in the liquid bag 24 (e.g., a calibration liquid bag containing calibration solution) can be guided to the sample analysis assembly, thereby realizing the analysis of the sample, and when sample analysis is not required, the movable element 2210 can control the liquid channel 220g to close. For example, when the fluid channel needs cleaning, the liquid channel 220g can be connected via the movable component 2210, so that the liquid channel 220g can connect with the fluid channel between the second channel port 220b and the sample analysis component. This allows the cleaning solution in the liquid bag 24 (e.g., a cleaning solution bag containing cleaning solution) to circulate within the fluid channel for cleaning. It should be noted that the deformation of the liquid channel 220g can be understood as a change in the overall or partial spatial shape of the liquid channel 220g.

[0036] Furthermore, the movable component 2210 is located outside the liquid channel 220g, that is, the movable component 2210 is placed outside the liquid channel 220g to isolate the liquid from the movable component 2210. Specifically, since the movable component 2210 needs to move or move rapidly when controlling the deformation of the liquid channel 220g, placing the movable component 2210 outside the liquid channel 220g can effectively reduce the probability of air bubbles appearing in the liquid within the liquid channel 220g, thereby effectively improving the analytical accuracy of the blood gas analyzer 1. Moreover, placing the movable component 2210 outside the liquid channel 220g can also effectively prevent the movable component 2210 from contaminating the liquid flowing through the liquid channel 220g, thereby effectively ensuring the quality of the calibration solution or other liquids in the liquid bag 24, and further effectively improving the analytical accuracy of the blood gas analyzer 1.

[0037] Optionally, such as Figure 6 As shown, in some embodiments, the valve body assembly 220 includes a valve body 2201 and a sealing portion (not shown). The valve body 2201 has a partial liquid channel 220g, and a second channel opening 220b is disposed in the valve body 2201; the sealing portion is disposed in the valve body 2201, and a partial liquid channel 220g is formed between the sealing portion and the valve body 2201.

[0038] For example, in some embodiments, the sealing part can be a flexible tubing such as a hose, and the sealing part is used to form a deformable portion of the liquid channel 220g. The movable part 2210 is used to deform the sealing part to deform the liquid channel 220g, thereby enabling the liquid valve 22 to selectively connect or disconnect the channel assembly 250 and the liquid bag 24.

[0039] Alternatively, in some implementations, the sealing part and the valve body 2201 can cooperate to form a deformable part of the liquid channel 220g, so that the movable part 2210 can change the spatial shape of the part of the liquid channel 220g formed by the cooperation of the sealing part and the valve body 2201 by controlling the movement of the sealing part relative to the valve body 2201, that is, to deform the liquid channel 220g, thereby enabling the liquid valve 22 to selectively connect or disconnect the channel assembly 250 and the liquid bag 24.

[0040] Optionally, such as Figure 5-7 As shown, in some embodiments, the liquid channel 220g includes at least a first liquid sub-channel 220c and a second liquid sub-channel 220d, wherein the second liquid sub-channel 220d is a deformable part of the liquid channel 220g. Specifically, the first end of the first liquid sub-channel 220c is connected to the second channel port 220b, the second end of the second liquid sub-channel 220d is connected to the second end of the first liquid sub-channel 220c, and the first end of the second liquid sub-channel 220d is connected to the first channel port 220a. The first liquid sub-channel 220c is disposed on the valve body 2201. The sealing part includes a sealing assembly 2200. The sealing assembly 2200 is movably fitted with the valve body 2201 to form the second liquid sub-channel 220d together with the valve body 2201. The sealing assembly 2200 is used to move or deform relative to the valve body 2201 under the drive of the movable member 2210, so that the second liquid sub-channel 220d is closed or connected, thereby enabling the liquid valve 22 to selectively connect or disconnect the channel assembly 250 and the liquid bag 24.

[0041] Specifically, such as Figure 7-9As shown, the valve body 2201 is provided with a first recess 2201a spaced apart from the second channel opening 220b. The second end of the first liquid sub-channel 220c is disposed within the first recess 2201a. The sealing assembly 2200 includes a sealing member 2203. The sealing member 2203 includes a central body portion 2203a and a connecting portion 2203c surrounding the outer edge of the central body portion 2203a. The central body portion 2203a is linked with the movable member 2210 and movably cooperates with the first recess 2201a to form the second liquid sub-channel 220d. At least a portion of the central body portion 2203a is configured to be movable relative to the valve body 2201, so that all or part of the central body portion 2203a blocks or opens the second end of the first liquid sub-channel 220c, thereby closing or connecting the liquid channel 220g. Furthermore, the connecting part 2203c is sealed and fitted to the peripheral area of ​​the first recessed part 2201a, thereby sealing the connecting part 2203c and the peripheral area of ​​the first recessed part 2201a, effectively ensuring the sealing performance of the connection between the sealing member 2203 and the valve body 2201, effectively preventing liquid from leaking out along the connection between the valve body 2201 and the sealing member 2203, thereby effectively improving the sealing performance of the liquid channel 220g and reducing the probability of internal leakage of the liquid valve 22.

[0042] Specifically, the linkage between the movable part 2210 and the central main body 2203a means that when the force-bearing part 2210 moves, it triggers the movable part 2210 to move, thereby changing the position of the movable part 2210. The following explanation applies to the linkage between two components.

[0043] Furthermore, such as Figure 7-9 As shown, in some embodiments, the connecting portion 2203c or the valve body 2201 is provided with an annular sealing structure 2203g. The annular sealing structure 2203g surrounds the outer periphery of the first recess 2201a and is located between the connecting portion 2203c and the valve body 2201. The annular sealing structure 2203g is used for filling adhesive or for deforming under the mutual compression of the connecting portion 2203c and the valve body 2201 to seal the outer periphery of the first recess 2201a, thereby effectively improving the sealing performance of the connection between the plugging member 2203 and the valve body 2201. For example, if the plugging member 2203 is a flexible component, the annular sealing structure 2203g can be integrally formed as part of the plugging member 2203, on the connecting portion 2203c of the plugging member 2203. This can effectively simplify the components of the liquid valve 22 and thus effectively improve the assembly efficiency of the liquid valve 22.

[0044] Alternatively, in some embodiments, the valve body assembly 220 includes an annular seal (not shown) surrounding the outer periphery of the first recess 2201a and located between the connecting portion 2203c and the valve body 2201. This seal effectively improves the sealing performance at the connection between the sealing member 2203 and the valve body 2201. For example, the annular seal can be a rubber ring or other element with sealing properties.

[0045] Furthermore, such as Figure 7-9 As shown, in some embodiments, the bottom of the first recessed portion 2201a is recessed to form a first groove 2201b, and the second end of the first liquid sub-channel 220c is disposed in the first groove 2201b. The sealing member 2203 includes a protruding convex structure 2203c (that is, a part of the central main body portion 2203a protrudes to form a protruding convex structure 2203c) that is movably engaged with the first groove 2201b, and the protruding structure 2203c is connected to the movable member 2210 for moving relative to the valve body 2201 under the drive of the movable member 2210 to block or open the second end of the first liquid sub-channel 220c. Specifically, the first groove 2201b is the inner groove structure of the first recessed portion 2201a, that is, the first recessed portion 2201a is set as a groove-within-a-groove structure. The radial structural dimension of the first groove 2201b is smaller than that of the first recessed portion 2201a. The smaller-sized first groove 2201b is in movable cooperation with the smaller-sized convex structure 2203c, and the movable member 2210 is connected to the convex structure 2203c, so that the force of the movable member 2210 on the sealing member 2203 can be more effectively concentrated in the area near the second end of the first liquid sub-channel 220c. This allows the sealing member 2203 to better seal the second end of the first liquid sub-channel 220c, thereby effectively improving the sealing performance of the liquid valve 22 when it is closed, and effectively reducing the probability of gas entering the liquid bag 24 when the liquid valve 22 is closed (that is, when the liquid channel 220g is closed).

[0046] Furthermore, when the movable part 2210 controls the sealing part 2203 to open the second end of the first liquid sub-channel 220c, the central main body 2203a will be relative to the valve body 2201 to effectively expand the volume of the second liquid sub-channel 220d, thereby effectively reducing the risk of noise caused by the liquid flowing in the small volume of the second liquid sub-channel 220d when the second end of the first liquid sub-channel 220c is opened.

[0047] Optionally, such as Figure 7-9As shown, in some embodiments, the sealing member 2203 also serves as a component that docks with the first channel port 220a, so that the second sub-channel docks with the first channel port 220a. This arrangement can effectively improve the component reuse rate of the liquid valve 22, thereby effectively simplifying the component composition of the liquid valve 22 and thus effectively improving the assembly efficiency of the liquid valve 22. Specifically, the sealing member 2203 also includes a flow guide 2203d, which is disposed between the connecting part 2203c and the central body part 2203a. The flow guide 2203d forms a third liquid sub-channel 220e. The first end of the third liquid sub-channel 220e is disposed on the side of the flow guide 2203d facing the valve body 2201 for docking with the second liquid sub-channel 220d, and the second end of the third liquid sub-channel 220e is disposed on the side of the flow guide 2203d away from the valve body 2201 for docking with the first channel port 220a.

[0048] Optionally, such as Figure 7 As shown, in some embodiments, the valve body 2201 is further provided with a second groove 220f, which is connected to the second liquid sub-channel 220d. The second groove 220f is disposed opposite to the guide portion 2203d and is connected to the second end of the third liquid sub-channel 220e. In this way, the first groove 2201b can serve as a buffer groove between the first end of the third liquid sub-channel 220e and the second end of the second liquid sub-channel 220d, thereby effectively reducing the operating noise of the liquid valve 22 when it is in the open state.

[0049] Optionally, such as Figure 7 As shown, in some embodiments, the sealing assembly 2200 further includes a pressing member 2202, which is disposed on the side of the plugging member 2203 away from the valve body 2201, for pressing the connecting portion 2203c against the valve body 2201. Specifically, the hardness of the pressing member 2202 and the hardness of the valve body 2201 are both higher than the hardness of the plugging member 2203. Therefore, a pressing member 2202 is further disposed on the side of the plugging member 2203 away from the valve body 2201, so that the connecting portion 2203c of the plugging member 2203 is pressed against the side of the valve body 2201 by the pressing member 2202, thereby effectively improving the sealing performance between the connecting portion 2203c and the valve body 2201.

[0050] Furthermore, such as Figure 7 and Figure 9As shown, in some embodiments, the valve body 2201 is provided with an abutment plane 2201c surrounding the first recess 2201a and protruding relative to the first recess 2201a. The connecting part 2203c is disposed opposite to the abutment plane 2201c. The pressing member 2202 is used to press the connecting part 2203c against the abutment plane 2201c. In this way, the connecting part 2203c can be attached to the abutment plane 2201c under the interaction of the pressing member 2202 and the valve body 2201, thereby effectively improving the sealing performance between the connecting part 2203c and the valve body 2201.

[0051] Optionally, such as Figure 7 , Figure 9 and Figure 10 As shown, in some embodiments, the liquid-inlet valve 22 further includes a docking body 222 disposed on the box body 21. The docking body 222 forms an accommodating space 222b with an opening, wherein the valve body 2201, the sealing assembly 2200, and the movable member 2210 are all disposed within the accommodating space 222b. Specifically, the docking body 222 serves as the docking part between the liquid-inlet valve 22 and the box body 21, and it also forms an accommodating space 222b. The valve body assembly 220 and the switching assembly 221, such as the valve body 2201, the sealing assembly 2200, and the movable member 2210, are all disposed within the accommodating space 222b. This arrangement can effectively reduce the risk of the liquid-inlet valve 22 being accidentally opened or closed.

[0052] Furthermore, in some embodiments, the valve body 2201 is embedded in the accommodating space 222b, and the sealing component 2200 and the movable component 2210 are both located on the side of the valve body 2201 away from the opening of the accommodating space 222b. In other words, the sealing component 2200 and the movable component 2210 are both located on the side of the valve body 2201 away from the opening end of the docking body 222. This arrangement ensures that the sealing component 2200 and the movable component 2210 are located in the area between the bottom wall 222a of the docking body 222 and the valve body 2201, thereby effectively preventing either the sealing component 2200 or the movable component 2210 from being accidentally touched, which could lead to the accidental connection or closure of the liquid passage 220g, thereby effectively improving the working stability of the liquid valve 22.

[0053] Optionally, such as Figure 6-7As shown, the switching assembly 221 also includes a force-receiving member 2211 (in some embodiments, the force-receiving member 2211 is also referred to as the first part of the switching assembly 221). The force-receiving member 2211 is linked with the movable member 2210, and the force-receiving member 2211 is used to receive external force so that the movable member 2210 can be moved under the action of the external force, thereby opening or closing the liquid passage 220g. Specifically, a part of the force-receiving member 2211 is located on the side of the valve body 2201 facing the opening of the accommodating space 222b, and is used to receive external force. The other part of the force-receiving member 2211 is linked and cooperates with the movable member 2210, thereby driving the movable member 2210 to move. With this configuration, the reagent kit 20 can be mechanically connected to the execution component of the blood gas analyzer 1 via the force-bearing component 2211, so that the flow of fluid on the reagent kit 20 can be controlled without the need for a liquid circuit connection between the device body 10 and the reagent kit 20. This effectively improves the convenience of docking between the reagent kit 20 and the device body 10, while also effectively preventing leakage when the reagent kit 20 and the device body 10 are docked.

[0054] For example, in some embodiments, the other part of the force-bearing member 2211 and the movable member 2210 can be linked together by magnetic coupling. Alternatively, the other part of the force-bearing member 2211 (e.g., the extension support strip 2211a of the force-bearing member 2211) can extend to the side of the valve body 2201 away from the opening of the accommodating space 222b and abut against the movable member 2210, thereby achieving linkage.

[0055] Furthermore, the force-receiving component 2211 is located outside the liquid channel 220g to isolate the liquid from the force-receiving component 2211. Specifically, since the force-receiving component 2211 needs to move or move rapidly when linked with the moving component 2210, placing the force-receiving component 2211 outside the liquid channel 220g can effectively reduce the probability of air bubbles appearing in the liquid within the liquid channel 220g, thereby effectively improving the analytical accuracy of the blood gas analyzer 1. Moreover, placing the force-receiving component 2211 outside the liquid channel 220g can also effectively prevent the force-receiving component 2211 from contaminating the liquid flowing through the liquid channel 220g, thereby effectively ensuring the quality of the calibration solution or other liquids in the liquid bag 24, and further effectively improving the analytical accuracy of the blood gas analyzer 1.

[0056] Optionally, such as Figure 6As shown, in some embodiments, the force-bearing member 2211 includes a plate 2211b and one or two extension support bars 2211a. The plate 2211b is mounted between the two extension support bars 2211a. The plate 2211b is located on the side of the valve body 2201 facing the opening of the accommodating space 222b. The extension support bars 2211a extend into the space on the side of the valve body 2201 away from the opening of the accommodating space 222b. The extension support bars 2211a are used to abut against the movable member 2210. The plate 2211b is used to receive external force so that the extension support bars 2211a drive the movable member 2210 to move. Specifically, the extension support strip 2211a is the part of the force-bearing component 2211 that is linked with the movable component 2210, and the plate 2211b is the part of the force-bearing component 2211 that receives external forces. By making the part of the force-bearing component 2211 that receives external forces into a plate shape, and the part of the force-bearing component 2211 that is linked with the movable component 2210 into a strip shape, the structural dimensions of the force-bearing component 2211 can be effectively reduced, thereby effectively reducing the weight of the liquid valve 22. Furthermore, while meeting the strength requirements, the radial dimension of the plate 2211b (i.e., the surface dimension of the plate 2211b) can be set as small as possible to reduce the probability of accidental activation of the plate 2211b.

[0057] Of course, in some embodiments, the number of extension support strips 2211a may also be three or four, etc., to effectively improve the structural strength of the load-bearing member 2211.

[0058] Optionally, such as Figure 6-9As shown, in some embodiments, the movable member 2210 is a rod-shaped movable rod 2210a, wherein one end of the movable rod 2210 is connected to the central main body 2203a, and the other end is movably engaged with the docking body 222, wherein the axial direction of the movable rod 2210 is perpendicular to the direction of the external force (in some embodiments, the direction of the external force is perpendicular to the plate surface of the plate 2211b). Specifically, in some embodiments, a groove is formed on the side of the convex structure 2203c away from the valve body 2201, and a buckle is formed on one end of the movable rod 2210, wherein the buckle engages with the groove to fix the movable rod 2210 and the convex structure 2203c, thereby effectively improving the assembly efficiency between the movable rod 2210 and the sealing member 2203. Furthermore, the switch assembly 221 also includes a switch pressure plate 2213, wherein the switch pressure plate 2213 is linked with the movable rod 2210 (for example, the switch pressure plate 2213 can be linked with the movable rod 2210 by a fixed connection, that is, the switch pressure plate 2213 is fixed to the movable rod 2210). Two extension brackets 2211a respectively abut or connect to both ends of the switch pressure plate 2213, thereby enabling the switch pressure plate 2213 to link with the force-bearing member 2211, and thus enabling the force-bearing member 2211 to link with the movable rod 2210. The sealing part (or sealing assembly 2200) is located in the space between the two extension brackets, the plate 2211b and the switch pressure plate 2213, which effectively avoids interference with the sealing part caused by the linkage between the two extension brackets, the plate 2211b and the switch pressure plate 2213.

[0059] Optionally, such as Figure 7 and Figure 10 As shown, in some embodiments, the bottom wall 222a of the docking body 222 is provided with a second recess 2220, and the first recess 2201a and the second recess 2220 are disposed opposite to each other to form an active space, wherein the switch pressure plate 2213, the movable rod 2210 and the central body part 2203a are all located within the active space. Specifically, the second recess 2220 includes a first active groove 2222 and a second active groove 2221 that are interconnected. The second active groove 2221 is disposed at the bottom of the first active groove 2222, the switch pressure plate 2213 is movably disposed in the first active groove 2222, and the movable rod 2210 is at least partially disposed in the second active groove 2221. At least a portion of the peripheral surface of the movable rod 2210 slides in contact with the wall of the second movable groove 2221. In this way, the wall of the second movable groove 2221 restricts the degree of freedom of movement along its radial direction, so that the axial direction of the movable rod 2210 can always be parallel to the direction of the external force, thereby effectively improving the smoothness of the movement of the movable rod 2210 and thus effectively improving the working stability of the liquid valve 22.

[0060] Optionally, such as Figure 7 As shown, in some embodiments, the movable element 2210 is configured to close the liquid channel 220g when no external force is applied. For example, in some embodiments, when the actuating component of the blood gas analyzer 1 provides external force to the force-bearing element 2211, or when the reagent kit 20 is not docked with the device body 10, the movable element 2210 is configured to close the liquid channel 220g. This effectively ensures that the liquid inlet valve 22 is always closed in its natural state, thereby effectively preventing leakage or air intake of the liquid bag 24 during the transfer or assembly of the reagent kit 20.

[0061] Specifically, such as Figure 6-7 As shown, in some embodiments, the movable member 2210 is provided with an abutment portion, such as a switch pressure plate 2213. The switch assembly 221 further includes an elastic member 2212, which is disposed on the side of the valve body 2201 opposite to the opening of the accommodating space 222b, that is, disposed within the second movable groove 2221. One end of the elastic member 2212 abuts against the abutment portion, and the other end of the elastic member 2212 abuts against the docking body 222, for providing elastic force to the movable member 2210 so that the movable member 2210 (e.g., the movable rod 2210) presses against the sealing portion, thereby closing the liquid passage 220g.

[0062] Optionally, such as Figure 6-9 As shown, in some embodiments, the connecting portion 2203c is located between the docking body 222 and the bottom wall 222a of the docking body 222. The docking body 222 is also used to press the connecting portion 2203c against the bottom wall 222a of the docking body 222, thereby effectively improving the sealing performance between the connecting portion 2203c and the valve body 2201. In some embodiments, the connecting portion 2203c abuts against the bottom wall 222a of the docking body 222 via a pressing member 2202.

[0063] Optionally, such as Figure 9-10 As shown, in some embodiments, a connecting structure 2201d is provided on the side of the valve body 2201 facing the bottom wall 222a. The bottom wall 222a is provided with a through hole 2226, which connects the accommodating space 222b and the outside of the docking body 222. The through hole 2226 is spaced apart from the first channel opening 220a. The reagent kit 20 further includes a connecting component (not shown). A part of the connecting component abuts against the bottom wall 222a, and the other part of the connecting component passes through the through hole 2226 and is connected to the connecting structure 2201d. This can effectively improve the connection stability between the valve body 2201 and the docking body 222.

[0064] Optionally, such as Figure 7As shown, in some embodiments, the first channel opening 220a is disposed on the bottom wall 222a of the docking body 222, and the first channel opening 220a and the second recess 2220 are spaced apart, so that the docking body 222 has a structural basis for placing the movable part 2210 outside the liquid channel 220g.

[0065] Furthermore, such as Figure 8-10 As shown, in some embodiments, the valve body assembly 220 includes a flow guide 2203d, that is, as described above, the sealing member 2203 is provided with a flow guide 2203d, and the flow guide 2203d forms a third liquid sub-channel 220e, wherein the flow guide 2203d is partially embedded in the first channel opening 220a so that the third liquid sub-channel 220e is connected to the first channel opening 220a.

[0066] Specifically, in some embodiments, the bottom wall 222a of the docking body 222 is provided with an embedding groove 2224 and a sealing plane 2225 on the side facing the valve body assembly 220 (that is, the side facing the valve body 2201). The sealing plane 2225 is arranged around the embedding groove 2224. The first channel opening 220a is provided at the bottom of the embedding groove 2224 (it can also be understood that the end of the first channel opening 220a near the accommodating space 222b expands to form the embedding groove 2224). The flow guiding part 2203d includes an embedding body 2203e and an annular sealing part 2203f, wherein the embedding body 2203e is used to form a third liquid sub-channel 220e, and the annular sealing part 2203f is arranged around the embedding body 2203e. Furthermore, the embedding body 2203e is at least partially embedded in the embedding groove 2224, and the annular sealing part 2203f seals against the sealing plane 2225, thereby achieving a sealed connection between the flow guide part 2203d and the first channel opening 220a, thereby effectively improving the sealing performance of the liquid channel 220g.

[0067] In some embodiments, the sealing plane 2225 is recessed into the bottom wall 222a of the docking body 222, so as to form an annular groove around the embedding groove 2224. The annular sealing part 2203f is embedded in the annular groove and seals against the bottom surface of the annular groove (i.e., the sealing plane 2225).

[0068] Optionally, such as Figure 7-10 As shown, in some embodiments, the annular sealing portion 2203f is located on the side of the pressure member 2202 away from the connecting portion 2203c. The pressure member 2202 abuts against the annular sealing portion 2203f to press the annular sealing portion 2203f into the annular groove, thereby effectively improving the sealing performance between the guide portion 2203d and the first channel opening 220a.

[0069] Optionally, such as Figure 5-7 As shown, in some embodiments, the reagent kit 20 further includes an end cap 223, which covers the opening of the accommodating space 222b. The plate 2211b (also referred to as part of the force-bearing member 2211 in some embodiments) is located between the end cap 223 and the valve body 2201. This makes the force-bearing member 2211 wholly or partially located in the space between the end cap 223 and the docking body 222, thereby effectively reducing the probability of the force-bearing member 2211 being accidentally touched, and thus effectively improving the working stability of the liquid valve 22. Furthermore, the end cap 223 and the force-bearing component 2211 are spaced apart (or at least along the direction of the external force, the plate 2211b and the end wall of the end cap 223 are spaced apart by a preset distance). In this way, during the assembly process of the end cap 223 and the docking body 222, it can effectively prevent the end cap 223 from coming into contact with the force-bearing component 2211, thereby accidentally opening the liquid valve 22 and causing gas to enter the liquid tank, affecting the quality of the calibration liquid in the liquid tank.

[0070] Optionally, in some embodiments, the switch assembly 221 further includes a magnetic element disposed on the plate 2211b; or the plate 2211b is a magnetic element connected to a portion of the force-receiving element 2211; wherein, the magnetic element is used to couple with the execution component of the blood gas analyzer 1 to drive the moving part 2210 to move. With this configuration, the force-receiving element 2211 can achieve contactless transmission with the execution component located outside the docking body 222, so that the force-receiving element 2211 does not need to be exposed outside the docking body 222 to achieve transmission connection with the execution component, thereby effectively reducing the probability of the force-receiving element 2211 being accidentally touched.

[0071] Optionally, such as Figure 5-7 As shown, in some embodiments, the end cap 223 is provided with a through hole 2230, and the plate 2211b is disposed opposite to the through hole 2230, so that the execution component of the blood gas analyzer 1 can pass through the through hole 2230 and abut against the plate 2211b, thereby transmitting external force to the plate 2211b. This arrangement can ensure that the liquid valve 22 can be smoothly connected with the execution component, and can also reduce the probability of the force-bearing component 2211 being accidentally activated to a certain extent. Further, in some embodiments, the through hole 2230 is provided on the end wall of the end cap 223 and the valve body 2201, wherein the ratio of the area of ​​the through hole 2230 to the total area of ​​the end face of the end wall is less than or equal to 0.2 to 0.5. This arrangement can further reduce the probability of the force-bearing component 2211 being accidentally activated, thereby effectively reducing the probability of the liquid valve 22 being accidentally opened or closed.

[0072] Optionally, such as Figure 4In some embodiments, the kit 20 further includes a channel assembly 250 disposed on the kit body 21, wherein the channel assembly 250 is at least partially located in the space between the force-bearing member 2211 and the movable member 2210. For example, the channel assembly 250 may be at least partially disposed on the side of the plate 2211b facing the valve body 2201.

[0073] Specifically, in some embodiments, the assembly process between the force-bearing member 2211 and the moving member 2210 is usually located after the assembly process of the channel assembly 250 and the docking process between the channel assembly 250 and the first channel opening 220a. This effectively prevents accidental activation of the switch assembly 221 during the assembly process of the channel assembly 250 (e.g., the docking process between the adapter 252 and the first channel opening 220a and the docking process between the adapter 252 and the conduit 251), which could lead to accidental connection of the liquid channel 220g and thus the risk of air flowing into the liquid bag 24 or liquid leakage from the liquid bag 24. Therefore, by placing at least a portion of the channel assembly 250 between the force-bearing member 2211 and the movable member 2210, space is provided for the assembly process between the force-bearing member 2211 and the movable member 2210 and the sequence of the assembly process of the channel assembly 250. This effectively reduces the risk of air flowing into the liquid bag 24 or liquid leakage from the liquid bag 24 during the docking process of the channel assembly 250 and the first channel opening 220a.

[0074] Furthermore, such as Figure 11-13 As shown, in some embodiments, the channel assembly 250 includes a connector 252 and a catheter 251. Specifically, the connector 252 is a component for connecting the second channel port 220b to the catheter 251. That is, the connector 252 is disposed between the second channel port 220b and the catheter 251, and the connector 252 connects to both the second channel port 220b and the catheter 251, so that the second channel port 220b and the catheter 251 are connected. The catheter 251 is a component for forming a complex fluid channel and for connecting to the sample test card of the blood gas analyzer 1. Therefore, by connecting the second channel port 220b to the catheter 251 through the connector 252, the assembly complexity of the fluid inlet valve 22 and the catheter 251 can be effectively reduced, thereby effectively improving the assembly efficiency of the fluid inlet valve 22 and the catheter 251. The transfer fitting 252 is located on the side of the plate 2211b facing the valve body 2201. This provides space for the assembly process between the force-bearing component 2211 and the moving component 2210, as well as the sequence of the assembly process of the channel assembly 250. This effectively reduces the risk of air flowing into the liquid bag 24 or liquid leakage from the liquid bag 24 during the docking process between the channel assembly 250 and the first channel port 220a.

[0075] Optionally, such as Figure 11-13 As shown, in some embodiments, the kit 20 includes a vent valve 23 and multiple liquid inlet valves 22. Each liquid inlet valve 22 is connected to a corresponding liquid bag 24. For example, multiple liquid inlet valves 22 can be connected to corresponding calibration liquid bags and connected to conduit 251 via adapter fittings 252. The vent valve 23 is disposed on the kit body 21 and is connected to the conduit 251 via adapter fittings 252. The vent valve 23 has a selectively open or closed gas channel, allowing it to selectively connect or close at least the flow channel within the adapter fitting 252. Thus, when cleaning is required in the fluid channels of the adapter fitting 252 and the conduit 251, the actuator can control the vent valve 23 to open, allowing air to enter the fluid channels of the adapter fitting 252 and the conduit 251, blowing away residual liquid in the adapter fitting 252 and the conduit 251, thereby effectively improving cleaning efficiency.

[0076] Specifically, in some embodiments, the adapter pipe 252 includes an extension section 2521 and a plurality of connecting sections 2520, wherein the plurality of connecting sections 2520 are respectively connected to the extension section 2521, and the plurality of connecting sections 2520 are respectively connected to the corresponding liquid valve 22 and air valve 23. The extension section 2521 spans the open ends of the plurality of docking bodies 222, and the plurality of connecting sections 2520 and at least a portion of the extension section 2521 are disposed within the corresponding receiving space 222b. For example, in some embodiments, the side wall of the docking body 222 is provided with an opening slot 2223, the opening slot 2223 communicating with the receiving space 222b outside the docking body 222, wherein the extension section 2521 of the adapter pipe 252 passes through the corresponding docking body 222 sequentially along the corresponding opening slot 2223, and is respectively connected to the connecting section 2520 located in the corresponding receiving space 222b. Furthermore, the extension section 2521 also engages with the opening slot 2223 for limiting, which effectively prevents the adapter pipe 252 from shaking relative to the valve body 2201, thereby effectively improving the docking stability between the adapter pipe 252 and the first channel port 220a. The extension section 2521 can be spaced apart from the plate 2211b, with the distance between the two being greater than or equal to the stroke length of the plate 2211b.

[0077] Optionally, in some embodiments, the kit 20 further includes a plurality of mating plugs 224, wherein the connecting segment 2520 is mated with the second channel port 220b through the plurality of mating plugs 224, thereby effectively improving the mating seal between the connecting segment 2520 and the second channel port 220b.

[0078] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A reagent kit for a blood gas analyzer, characterized in that, The kit includes: The box body has a receiving cavity, and the receiving cavity is provided with a liquid bag; A liquid-flow valve includes a valve body assembly and a switching assembly. The valve body assembly has a first channel port and a second channel port. The first channel port is connected to the liquid bag, and a liquid channel is formed between the first channel port and the second channel port. The switching assembly includes a movable component and a force-receiving component. The force-receiving component is used to receive external force, and the movable component is used to close or open the liquid channel. The movable component and the force-receiving component work together so that under the action of external force, the force-receiving component drives the movable component to act on the liquid channel, thereby closing or opening the liquid channel. A channel assembly is disposed on the box body and located in the space between the movable part and the force-bearing part. The channel assembly is connected to the second channel port for connecting with the sample test card of the blood gas analyzer.

2. The reagent kit according to claim 1, characterized in that, The channel assembly is at least partially located in the space between the movable member and the force-bearing member. The channel assembly includes an interconnected adapter and a catheter. The adapter is connected to the second channel port to connect the catheter and the second channel port. The adapter is located in the space between the movable member and the force-bearing member. The catheter is used to connect to the sample test card of the blood gas analyzer.

3. The reagent kit according to claim 2, characterized in that, The reagent kit also includes a vent valve disposed on the kit body, and there are multiple liquid inlet valves. The adapter includes an extension section and multiple connecting sections. One end of each of the multiple connecting sections is connected to the extension section, and the other end of each of the multiple connecting sections is connected to the corresponding multiple liquid inlet valves and vent valves.

4. The kit according to any one of claims 1-3, characterized in that, The liquid channel includes a first liquid sub-channel and a second liquid sub-channel. The first end of the first liquid sub-channel is connected to the second channel opening, the second end of the second liquid sub-channel is connected to the second end of the first liquid sub-channel, and the first end of the second liquid sub-channel is connected to the first channel opening. The valve body assembly includes a valve body and a sealing part. The second channel port is disposed on the valve body. The sealing part includes a sealing component. The sealing component is movably engaged with the valve body to form the second liquid sub-channel together with the valve body. The sealing component is used to move or deform relative to the valve body under the drive of the movable part to close or open the second liquid sub-channel.

5. The reagent kit according to claim 4, characterized in that, The valve body is provided with a first recessed portion spaced apart from the second channel opening, and the second end of the first liquid sub-channel is disposed in the first recessed portion; the sealing assembly includes a plugging member, the plugging member includes a central main body and a connecting portion surrounding the outer edge of the central main body, the central main body is linked with the movable member and movably cooperates with the first recessed portion to form the second liquid sub-channel, and the connecting portion is sealed and fitted with the peripheral area of ​​the first recessed portion, so that the connecting portion and the peripheral area of ​​the first recessed portion are sealed.

6. The reagent kit according to claim 1, characterized in that, The reagent kit includes a docking body disposed on the kit body, the docking body forming an accommodating space with an opening, and the valve assembly and the switch assembly disposed within the accommodating space; The valve body assembly includes a valve body and a sealing part. The sealing part includes a sealing component, and the sealing component includes a plugging member. The plugging member includes a central main body and a connecting part surrounding the outer edge of the central main body. The force-bearing component includes a plate and two extended support strips. The plate is mounted between the two extended support strips and is located on the side of the valve body facing the opening of the accommodating space. The extended support strips extend into the space on the side of the valve body away from the opening of the accommodating space. The switch assembly also includes a switch pressure plate. The two extended support strips abut against the two ends of the switch pressure plate. The movable component is a rod-shaped movable rod. The switch pressure plate and the movable rod are linked and cooperate, thereby enabling the switch pressure plate and the force-bearing component to cooperate, and further enabling the force-bearing component and the movable rod to cooperate.

7. The kit according to claim 1, characterized in that, The reagent kit includes a docking body, which forms an accommodating space with an opening, and the first channel opening is disposed on the bottom wall of the docking body; The valve body assembly includes: a valve body disposed in the accommodating space, the valve body forming a portion of the liquid channel, and a second channel opening disposed in the valve body; a sealing portion disposed in the valve body, and the sealing portion being located between the bottom wall of the docking body and the valve body; a portion of the liquid channel is formed between the sealing portion and the valve body, and the movable member is used to deform the sealing portion to deform the liquid channel; or the movable member is used to move the sealing portion relative to the valve body to deform the liquid channel; The movable component is disposed between the sealing part and the bottom wall of the docking body; a part of the force-bearing component is located on the side of the valve body away from the bottom wall of the valve body; another part of the force-bearing component is linked and cooperates with the movable component; and a part of the channel assembly is located in the space between the part of the force-bearing component and the valve body. The reagent kit includes an end cap that covers the opening of the accommodating space. The end cap is spaced apart from the force-bearing member, and a portion of the force-bearing member is located between the end cap and the valve body. The end cap is provided with a through hole, and a portion of the force-bearing component is disposed opposite to the through hole so that the execution component of the blood gas analyzer can pass through the through hole and abut against the portion of the force-bearing component.

8. The reagent kit according to claim 7, characterized in that, The channel assembly includes interconnected adapter pipes and conduit pipes. The adapter pipes are connected to the second channel opening to connect the conduit pipes and the second channel opening. The adapter pipes are spaced apart from the portion of the force-bearing component, and a portion of the adapter pipes is located in the space between the portion of the force-bearing component and the valve body. The conduit pipes are used to connect with the sample test card. The side wall of the docking body is provided with an open slot, which connects the accommodating space with the outside of the docking body. The adapter pipe is limited and engaged with the open slot, and a part of the adapter pipe is disposed in the accommodating space and docks with the second channel opening. The other part of the adapter pipe passes through the open slot to extend to the outside of the docking body.

9. A reagent kit for a blood gas analyzer, characterized in that, The kit includes: A sampling component, wherein the sampling component is disposed on the reagent kit; The box body has a receiving cavity, and the receiving cavity is provided with a liquid bag; A liquid-flow valve includes a valve body assembly and a switching assembly. The valve body assembly has a first channel port and a second channel port. The first channel port is connected to the liquid bag, and a liquid channel is formed between the first channel port and the second channel port. The switching assembly includes a movable component and a force-receiving component. The force-receiving component is used to receive external force, and the movable component is used to close or open the liquid channel. The movable component and the force-receiving component work together so that under the action of external force, the force-receiving component drives the movable component to act on the liquid channel, thereby closing or opening the liquid channel. Both the force-receiving component and the movable component are located outside the liquid channel. A channel assembly is disposed on the box body, located in the space between the movable part and the force-bearing part, and docks with the second channel port for docking with the sample test card of the blood gas analyzer.

10. The reagent kit according to claim 9, characterized in that, The channel assembly includes an interconnected adapter and a catheter. The adapter is connected to the second channel port to connect the catheter and the second channel port. The adapter is located in the space between the movable member and the force-bearing member. The catheter is used to connect with the sample test card of the blood gas analyzer.

11. A blood gas analyzer, characterized in that, include: Equipment body; The reagent kit, which interfaces with the main body of the blood gas analyzer, comprises: A sampling component, wherein the sampling component is disposed on the reagent kit; The box body has a receiving cavity, and the receiving cavity is provided with a liquid bag; A liquid-flow valve includes a valve body assembly and a switching assembly. The valve body assembly has a first channel port and a second channel port. The first channel port is connected to the liquid bag, and a liquid channel is formed between the first channel port and the second channel port. The switching assembly includes a movable component and a force-receiving component. The force-receiving component is used to receive external force, and the movable component is used to close or open the liquid channel. The movable component and the force-receiving component work together so that under the action of external force, the force-receiving component drives the movable component to act on the liquid channel, thereby closing or opening the liquid channel. A channel assembly is disposed on the box body, and the channel assembly is at least partially located in the space between the movable member and the force-bearing member. The channel assembly is connected to the second channel port for connection with the sample test card of the blood gas analyzer.

12. The blood gas analyzer according to claim 11, characterized in that, The blood gas analyzer also includes an execution component, which is used to provide external force to the force-receiving component, and the force-receiving component is used to drive the force-receiving component based on the external force to close or open the liquid channel. The reagent kit includes a docking body forming an accommodating space with an opening, wherein the first channel opening is disposed on the bottom wall of the docking body; The valve body assembly includes: a valve body disposed in the accommodating space, forming a portion of the liquid channel, with the second channel opening disposed in the valve body; a sealing portion disposed in the valve body, and the sealing portion being located between the bottom wall of the docking body and the valve body; a portion of the liquid channel is formed between the sealing portion and the valve body; the movable member is used to deform the sealing portion to deform the liquid channel; or the movable member is used to move the sealing portion relative to the valve body to deform the liquid channel; The movable component is disposed between the sealing part and the bottom wall of the docking body; a part of the force-bearing component is located on the side of the valve body away from the bottom wall of the valve body; another part of the force-bearing component is linked and cooperates with the movable component; and a part of the channel assembly is located in the space between the part of the force-bearing component and the valve body. The reagent kit includes an end cap that covers the opening of the accommodating space. The end cap is spaced apart from the force-receiving component, and a portion of the force-receiving component is located between the end cap and the valve body. The end cap has a through hole, and a portion of the force-receiving component is positioned opposite the through hole so that the execution component of the blood gas analyzer can pass through the through hole and abut against the portion of the force-receiving component.

13. The blood gas analyzer according to claim 12, characterized in that, The channel assembly includes interconnected adapter pipes and conduit pipes. The adapter pipes are connected to the second channel port to connect the conduit pipes and the second channel port. The adapter pipes are spaced apart from a portion of the force-bearing component, and a portion of the adapter pipes is located in the space between the portion of the force-bearing component and the valve body. The conduit pipes are used to connect to the sample test card. The kit also includes a vent valve, wherein the vent valve is configured to selectively connect or close a gas channel to selectively connect or close a fluid channel within the adapter pipes.

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