Blood gas analyzer and reagent kit for blood gas analyzer

Abstract

The present application relates to the field of analytical instruments, and specifically relates to a blood gas analyzer and a reagent kit for the blood gas analyzer. The reagent kit comprises: a support and a movable part, wherein the support is provided with a first fluid passage, a second fluid passage and a third fluid passage which are arranged at intervals, the first fluid passage being adapted for communication with an external space, the second fluid passage being adapted for communication with a liquid pouch of the reagent kit, and the third fluid passage being adapted for communication with a sample analysis assembly of the blood gas analyzer; and the movable part can rotate; when rotated to a first state, the movable part communicates the first fluid passage with the third fluid passage, and blocks the second fluid passage; when rotated to a second state, the movable part communicates the second fluid passage with the third fluid passage, and blocks the first fluid passage. The rotation of the movable part to different states can selectively block one of the first fluid passage or the second fluid passage, and communicate the other one of the first fluid passage or the second fluid passage with the third fluid passage, thereby achieving switching between gas and liquid.

Description

Blood gas analyzer and kit for blood gas analyzer

[0001] The present application relates to the field of analytical instruments, in particular to a blood gas analyzer and a kit for blood gas analyzer.

[0002] With the progress of analytical technology, a sampling assembly of a blood gas analyzer can be used to obtain a sample and / or other reagents, and then the sampling assembly is docked with a docking slot of the blood gas analyzer, so that the sample and / or other reagents in the sampling assembly can be input into a detection assembly of the blood gas analyzer through a pipeline in the docking slot. During the test of the blood gas analyzer, a valve assembly of the blood gas analyzer is docked with a liquid bag, so that the liquid in the liquid bag can enter the blood gas analyzer, and the waste liquid generated by the measurement and analysis and related operations can flow into the liquid bag. However, in this structure, there is usually only a single channel, which can only control a single component of liquid or gas. When gas-liquid switching is required, an air valve needs to be added outside the valve assembly, and the valve assembly and the air valve cooperate to realize gas-liquid switching, which will cause the structure of the device to be complex.

[0003]

[0004] The technical problem to be solved by the present application is to provide a blood gas analyzer and a kit for blood gas analyzer, so as to realize gas-liquid switching through a relatively simple structure.

[0005] The present application provides a kit for blood gas analyzer. The kit comprises: a bracket having a first fluid passage, a second fluid passage and a third fluid passage arranged at intervals, the first fluid passage being used for communication with an external space, the second fluid passage being used for communication with a liquid bag of the kit, and the third fluid passage being used for communication with a sample analysis assembly of the blood gas analyzer; and a movable member, which is capable of rotating, and when rotated to a first state, communicates the first fluid passage and the third fluid passage and blocks the second fluid passage, and when rotated to a second state, communicates the second fluid passage and the third fluid passage and blocks the first fluid passage.

[0006] In some embodiments, the bracket has a groove body, the first fluid passage, the second fluid passage and the third fluid passage are formed on one side of the bottom of the groove body, each end opening of the first fluid passage, the second fluid passage and the third fluid passage is located at the bottom of the groove body, and one end opening of the third fluid passage is located between one end opening of the first fluid passage and one end opening of the second fluid passage.

[0007] ​​​In some embodiments, the movable member has a base, a first movable part and a second movable part, the first movable part and the second movable part are spaced apart and extend from the base towards one side of the bottom of the groove, the base is capable of rotating around a pivot point when subjected to an external force; when the base rotates around the pivot point to the first state, the first movable part is used to open an end opening of the first fluid passage, and the second movable part is used to block an end opening of the second fluid passage; when the base rotates around the pivot point to the second state, the first movable part is used to block an end opening of the first fluid passage, and the second movable part is used to open an end opening of the second fluid passage.

[0008] In some embodiments, the movable member has a protruding part towards one side of the bottom of the groove, the protruding part is located between the first movable part and the second movable part; the bottom of the groove has a groove towards the protruding part, and the end of the protruding part is embedded in the groove, so that the movable member can rotate around the pivot point in the groove.

[0009] In some embodiments, the movable member has a shaft part extending from both sides, the shaft part is perpendicular to the line connecting the first movable part and the second movable part; the bottom of the groove has two grooves towards the protruding part, the two grooves are located on both sides of the line connecting the first movable part and the second movable part, and the shaft part is embedded in the two grooves, so that the movable member can rotate around the pivot point.

[0010] In some embodiments, the first movable part and the second movable part have a first sleeve part and a second sleeve part respectively, the first movable part blocks an end opening of the first fluid passage through the first sleeve part, and the second movable part blocks an end opening of the second fluid passage through the second sleeve part.

[0011] In some embodiments, the kit further comprises a connecting member connected to the first sleeve part and the second sleeve part and extending to an area outside the first sleeve part and the second sleeve part.

[0012] In some embodiments, the first sleeve part has a first accommodation cavity towards one side of the first movable part, and the first movable part can move in a direction away from or away from the bottom of the first accommodation cavity; the second sleeve part has a second accommodation cavity towards one side of the second movable part, and the second movable part can move in a direction away from or away from the bottom of the second accommodation cavity.

[0013] In some embodiments, the first sleeve portion has a first blocking portion, and the second sleeve portion has a second blocking portion, the first blocking portion is arranged on a side of the first sleeve portion opening towards one end of the first fluid passage, and is arranged correspondingly to the first sleeve portion, and the second blocking portion is arranged on a side of the second sleeve portion opening towards one end of the second fluid passage, and is arranged correspondingly to the second sleeve portion.

[0014] In some embodiments, the first movable portion comprises a first bulging portion and a first base portion connected between the first bulging portion and the base, the first bulging portion is accommodated in the first accommodating cavity, the opening diameter of the first accommodating cavity is smaller than the diameter of the first bulging portion, when the base rotates around the pivot point to the first state, the first bulging portion can abut against the bottom of the first sleeve portion, so that the first blocking portion blocks the opening of one end of the first fluid passage; the second movable portion comprises a second bulging portion and a second base portion connected between the second bulging portion and the base, the second bulging portion is accommodated in the second accommodating cavity, the opening diameter of the second accommodating cavity is smaller than the diameter of the second bulging portion, when the base rotates around the pivot point to the second state, the second bulging portion can abut against the bottom of the second sleeve portion, so that the second blocking portion blocks the opening of one end of the second fluid passage.

[0015] In some embodiments, the length of the first blocking portion is greater than the length of the second blocking portion.

[0016] In some embodiments, the connecting member is provided with a recess on a side away from the movable member, a first gap is formed between the recess and the opening of one end of the third fluid passage, the first gap is used for communicating with the first fluid passage and the external space when the first fluid passage is in the communicating state, and the first gap is used for communicating with the second fluid passage and the liquid bag when the second fluid passage is in the communicating state.

[0017] In some embodiments, the radial dimension of the first bulging portion gradually decreases along the direction in which the first base portion extends, and the radial dimension of the second bulging portion gradually decreases along the direction in which the second base portion extends.

[0018] In some embodiments, the two grooves are arranged on opposite sides of the opening of one end of the third fluid passage.

[0019] In some embodiments, the cross-sectional shape of the protruding portion is arc-shaped, and the diameter of the groove is greater than the outer diameter of the protruding portion.

[0020] In some embodiments, the distance between the end of the first movable portion and the base is greater than the distance between the end of the second movable portion and the base.

[0021] In some embodiments, the first base has a rectangular cross-sectional shape and / or the second base has a rectangular cross-sectional shape.

[0022] In some embodiments, the kit further comprises a support member disposed on a side of the connecting member facing the movable member, a portion of the support member abutting an outer edge of the connecting member, and another portion of the support member abutting a bottom of the slot corresponding to a peripheral region of the connecting member.

[0023] In some embodiments, the kit further comprises a fixing member received in the slot and covering a bottom of the slot, the fixing member having a receiving cavity in which the movable member, the connecting member, and the support member are received, and an opening edge of the receiving cavity abutting the support member.

[0024] In some embodiments, the receiving cavity forms a second gap between a side near the bottom of the slot and the bottom of the slot, and an edge of the support member and an edge of the connecting member are stacked and disposed in the second gap.

[0025] The side of the bottom of the slot further forms a fourth fluid passage, the fourth fluid passage and the third fluid passage are disposed on two opposite sides of the first fluid passage, and the fourth fluid passage is used to communicate with an external space.

[0026] In some embodiments, the connecting member further comprises a connecting portion extending from a side of the first sleeve portion away from the second sleeve portion, and the connecting portion covers at least an end opening of the fourth fluid passage on the bottom of the slot.

[0027] In some embodiments, the fixing member has a first receiving groove, and the connecting portion is received in the first receiving groove.

[0028] In some embodiments, the connecting portion is provided with a through hole, one end of the through hole communicates with an end opening of the fourth fluid passage, and the other end of the through hole communicates with the external space.

[0029] In some embodiments, the kit further comprises a pressing cap disposed between the movable member and a top of the fixing member, and the pressing cap is capable of moving in the receiving cavity towards the movable member or away from the movable member.

[0030] In some embodiments, the grommet includes a base, a first grommet portion, and a second grommet portion, the first grommet portion and the second grommet portion are disposed on a side of the base facing the movable member, the first grommet portion is movable in the receiving cavity towards the first movable portion or away from the first movable portion to selectively abut a first end of the base facing away from the first movable portion, the second grommet portion is movable in the receiving cavity towards the second movable portion or away from the second movable portion to selectively abut a second end of the base facing away from the second movable portion.

[0031] In some embodiments, the second grommet portion is provided with a second receiving groove, the second grommet portion includes a moving rod, the moving rod is movable in the second receiving groove when subjected to an external force, the moving direction is towards the second movable portion or away from the second movable portion to selectively abut the second end of the base facing away from the second movable portion.

[0032] In some embodiments, the moving rod includes a moving rod body and a protrusion extending from the moving rod body, the protrusion is capable of abutting the second end of the base facing away from the second movable portion when subjected to an external force, a radial dimension of the moving rod body is smaller than a radial dimension of the protrusion, a minimum diameter of the second receiving groove is greater than or equal to a maximum radial dimension of the protrusion.

[0033] In some embodiments, the kit further includes an elastic member sleeved on the moving rod body, the elastic member has an elastic force applied on the protrusion, the elastic force is towards the second movable portion.

[0034] The present application provides a blood gas analyzer. The blood gas analyzer includes a device main body, a kit connected to the device main body, the kit includes a support having a first fluid passage, a second fluid passage, and a third fluid passage arranged at intervals, the first fluid passage is used for communication with an external space, the second fluid passage is used for communication with a liquid bag of the kit, the third fluid passage is used for communication with a sample analysis assembly of the blood gas analyzer, a movable member, the movable member is capable of rotating, when rotated to a first state, the first fluid passage and the third fluid passage are communicated, and the second fluid passage is blocked, when rotated to a second state, the second fluid passage and the third fluid passage are communicated, and the first fluid passage is blocked.

[0035] In some embodiments, the kit further includes a box body provided with a receiving cavity for accommodating the liquid bag, the support and the movable member are disposed on the box body, a first infusion path is provided on the box body, a fluid outlet of the third fluid passage is communicated with the first infusion path for introducing a cleaning liquid into a connection groove of the kit.

[0036] In some embodiments, the kit further comprises: a box body provided with a containing cavity for containing the liquid bag, the bracket and the movable member are arranged in the box body; a second infusion path is arranged in the box body, and the fluid outlet of the third fluid path is in communication with the second infusion path for introducing reagent into the test card through the sampling assembly of the kit.

[0037] In some embodiments, the liquid bag comprises a washing liquid bag or a reagent liquid bag, and the device body is not provided with a liquid path.

[0038] Different from the prior art, in the embodiments of the present application, the reagent kit applied to the blood gas analyzer utilizes the structure that the movable member rotates around the fulcrum, so that when the movable member rotates to the first state, the first fluid path and the third fluid path are communicated, and the second fluid path is blocked, and when the movable member rotates to the second state, the second fluid path and the third fluid path are communicated, and the first fluid path is blocked. By rotating the movable member around the fulcrum to different states, one of the first fluid path or the second fluid path can be selectively blocked, and the other of the first fluid path or the second fluid path is communicated with the third fluid path, so that the switching of gas and liquid can be realized by a relatively simple structure. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor. Among them:

[0040] FIG. 1 is a structural schematic diagram of an embodiment of the blood gas analyzer of the present application.

[0041] FIG. 2 is a perspective exploded schematic diagram of the reagent kit in the embodiment shown in FIG. 1.

[0042] FIG. 3 is a sectional view of the local structure of the reagent kit along the line A-A in the embodiment shown in FIG. 1, showing that the movable member rotates to the first state.

[0043] FIG. 4 is a sectional view of the local structure of the reagent kit along the line A-A in the embodiment shown in FIG. 1, showing that the movable member rotates to the second state.

[0044] FIG. 5 is a schematic diagram of the local structure of the reagent kit in the embodiment shown in FIG. 3.

[0045] FIG. 6 is a schematic diagram of the local structure of the bracket in the embodiment shown in FIG. 2.

[0046] Fig. 7 is a schematic view of the structure of the movable member and the connecting member, the first sleeve part, the second sleeve part and the connecting part in the embodiment shown in Fig. 2.

[0047] Fig. 8 is a schematic view of the structure of the connecting member, the first sleeve part, the second sleeve part and the connecting part in the embodiment shown in Fig. 2.

[0048] Fig. 9 is a schematic view of the structure of the movable member in the embodiment shown in Fig. 2.

[0049] Fig. 10 is a schematic view of the cross section of the kit along the line B-B in the embodiment shown in Fig. 1.

DETAILED DESCRIPTION

[0050] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings, but not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0051] The terms "first", "second", and the like in the present application are used to distinguish different objects, but not to describe a specific order. In addition, the terms "include" and "provide with" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to the process, method, product or device.

[0052] In this document, reference to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are merely examples from a whole class of comparable embodiments which those skilled in the art will readily appreciate. It is also expressly understood that the terms "including", "for example", "for instance", "such as", and the like, are used herein to mean, and are reported to mean, exclusively "by way of illustration".

[0053] With the development of analysis technology, a sampling assembly of a blood gas analyzer can be used to obtain a sample and / or other reagents, and then the sampling assembly is docked with a docking slot of the blood gas analyzer, so that the sample and / or other reagents in the sampling assembly can be input into a detection assembly of the blood gas analyzer through a pipeline in the docking slot. In the test process of the blood gas analyzer in the related art, a valve assembly of the blood gas analyzer is docked with a liquid bag, so that the liquid in the liquid bag can enter the blood gas analyzer for measurement and analysis, and waste liquid generated in the blood gas analyzer can flow into the liquid bag. The scheme has only a single channel, and can only control a single component of liquid or gas.

[0054] When the valve assembly is docked with the liquid bag, the liquid inlet of the valve assembly is docked with the liquid outlet of the liquid bag, so as to realize the communication of the channels. In the related art, the docking of the liquid inlet and the liquid outlet is often difficult, and problems such as poor docking and liquid leakage are prone to occur. Moreover, the structure has only two liquid paths for control, and an air valve needs to be added to realize the switching of gas and liquid. The valve body structures of the two switches cooperate with each other to realize the switching of gas and liquid, that is, an air inlet channel is additionally arranged in the valve assembly, which causes the internal structure of the equipment to be complex.

[0055] To improve or solve the above technical problems, at least the following embodiments are provided in the present application.

[0056] Please refer to FIGS. 1-4. FIG. 1 is a structural schematic diagram of a blood gas analyzer according to an embodiment of the present application. FIG. 3 is a sectional view of a partial structure of a reagent box along line A-A in the embodiment shown in FIG. 1, showing that a movable piece is rotated to a first state. FIG. 2 is a perspective exploded view of the reagent box in the embodiment shown in FIG. 1. FIG. 4 is a sectional view of a partial structure of the reagent box along line A-A in the embodiment shown in FIG. 1, showing that the movable piece is rotated to a second state.

[0057] In some embodiments, as shown in FIGS. 1-4, the present application provides a blood gas analyzer 200. The blood gas analyzer 200 can include a device main body 210 and a reagent box 100. The reagent box 100 is docked with the device main body 210.

[0058] As shown in FIG. 1, in some embodiments, the device main body 210 can include a sampling assembly (not shown), a sample analysis assembly (not shown), a display assembly 230, and the like. The sample analysis assembly can detect the reagent input into a test card by using the test card. The sampling assembly is used to extract and deliver the liquid in the reagent box or from the outside to the test card. It can be understood that the sampling assembly can be arranged in the reagent box 100. That is, the sampling assembly can not be arranged on the device main body 210.

[0059] As shown in FIG. 1 and FIG. 2, in some embodiments, the kit 100 can include a bracket 10 and a movable element 20. The bracket 10 has a first fluid passage 111, a second fluid passage 112 and a third fluid passage 113 arranged in a spaced manner, the first fluid passage 111 is used to communicate with the outside space, the second fluid passage 112 is used to communicate with the liquid bag of the kit 100, and the third fluid passage 113 is used to communicate with the sample analysis assembly of the blood gas analyzer 200. The outside space refers to the space outside the first fluid passage 111. The movable element 20 can rotate around a fulcrum, and when it rotates to a first state, it communicates the first fluid passage 111 and the third fluid passage 113 and blocks the second fluid passage 112. When the movable element 20 rotates to a second state, it communicates the second fluid passage 112 and the third fluid passage 113 and blocks the first fluid passage 111. It should be noted that the bracket 10 and the movable element 20 in the kit 100 can also constitute a valve body assembly of the kit 100. The kit 100 can be fixed on the equipment main body 210 or can be replaced and docked with the equipment main body 210.

[0060] In the structural design of the kit 100 provided in the embodiments of the present application, the movable element 20 is designed as a seesaw structure, and the lever principle is used, so that the movable element 20 can rotate around the fulcrum to two different states under external force, so that one of the first fluid passage 111 and the second fluid passage 112 can be selectively communicated with the third fluid passage 113. Thus, two fluid passages are integrated in the valve body assembly of the kit 100, i.e. the first fluid passage 101 between the first fluid passage 111 and the third fluid passage 113, and the second fluid passage 103 between the second fluid passage 112 and the third fluid passage 113. In other words, the first fluid passage 101 and the second fluid passage 103 in the valve body assembly share the third fluid passage 113, and one of the first fluid passage 111 and the second fluid passage 112 is selectively blocked by the movable element 20, and the other is opened, so that the two fluid passages can be integrated in the valve body assembly of the kit 100. Further, by rotating the movable element 20 to different states, the first fluid passage 101 or the second fluid passage 103 can be selectively blocked, and the selective communication between the valve body assembly of the kit 100 and the outside space or the liquid bag can be achieved, so that the switching of gas and liquid (i.e. gas-liquid switching function) can be achieved. In other words, by using the lever principle, when the movable element 20 rotates to different states under external force, the communication state of the first fluid passage 101 (e.g. the first fluid passage 101 between the first fluid passage 111 and the third fluid passage 113) and the second fluid passage 103 (e.g. the second fluid passage 103 between the second fluid passage 112 and the third fluid passage 113) can be selectively switched to achieve gas-liquid switching.

[0061] It should be noted that in some embodiments, the first fluid passage 101 can also be referred to as a gas passage, and the second fluid passage 103 can be referred to as a liquid passage. In addition, the movable member 20 can also be designed as other rotating structures without fulcrums, such as rotating structures around an axis, as long as the switching between the two different states can be realized, so that one of the first fluid passage 111 and the second fluid passage 112 can selectively communicate with the third fluid passage 113.

[0062] Further, since the two fluid passages are integrated in the single valve body assembly of the kit 100, it is not necessary to additionally provide other valve elements in the valve body assembly of the kit 100 to realize the gas-liquid switching function. In this way, on the basis of realizing the gas-liquid switching function, the number of valve body assemblies of the kit 100 is also reduced, thereby not only reducing the occupancy rate of the internal space of the valve body assembly of the kit 100, but also reducing the production cost.

[0063] In some embodiments, the kit 100 can further include a box body 30. The box body 30 is provided with a containing cavity 301 for containing a liquid bag (not shown in the figure). The bracket 10 and the movable member 20 are arranged on the box body 30.

[0064] In some embodiments, the kit 100 further includes a first infusion path (not shown in the figure) arranged on the box body 30. The fluid outlet of the third fluid passage 113 communicates with the first infusion path for introducing a cleaning liquid into the docking groove of the kit 100.

[0065] In some embodiments, the kit 100 further includes a second infusion path (not shown in the figure) arranged on the box body 30. The fluid outlet of the third fluid passage 113 communicates with the second infusion path for introducing a reagent into a test card through a sampling assembly of the kit 100.

[0066] In some embodiments, the liquid bag contained in the box body 30 can include a cleaning liquid bag, a reagent liquid bag, etc.

[0067] That is, in the structural design of the blood gas analyzer 200 provided in the embodiments of the present application, the first infusion path and the second infusion path of the blood gas analyzer 200 are integrated in the reagent kit 100, and the device main body 210 is not provided with a liquid path. That is, in addition to the test card, a complete and independent fluid channel is provided on the reagent kit 100, so that the fluid (for example, reagent, cleaning liquid, and the like) can directly flow between the reagent kit 100 and the test card without passing through the device main body 210 other than the reagent kit 100 and the test card. Thus, such a structural design can achieve the following technical effects: since the fluid channel does not need to be provided on the device main body 210, the structure of the blood gas analyzer 200 is simplified, the maintenance cost of the blood gas analyzer 200 is effectively reduced, and the risk of damaging the device main body 210 due to damage of the reagent kit 100 or leakage of the liquid path can also be reduced. It should be noted that the number of valve body assemblies can be one or more. That is, when the number of valve body assemblies is more than one, one valve body assembly can be used for the output of the cleaning liquid, and another valve body assembly can be used for the output of the reagent. Therefore, the fluid channel provided in the reagent kit 100 can include a fluid channel between the first infusion path and the fluid outlet of the third fluid passage 113, and a fluid channel between the second infusion path and the fluid outlet of the third fluid passage 113.

[0068] It should be noted that in other embodiments, the first infusion path and the second infusion path can also be provided in the device main body 210. That is, when the fluid outlet of the third fluid passage 113 of the reagent kit 100 is in communication with the first infusion path of the device main body 210, the cleaning liquid can be introduced into the docking groove of the reagent kit 100. When the fluid outlet of the third fluid passage 113 of the reagent kit 100 is in communication with the second infusion path of the device main body 210, the reagent can be introduced into the test card through the sampling assembly.

[0069] In some embodiments, the execution assembly of the blood gas analyzer 200 can be provided on the replaceable reagent kit 100. Further, the execution assembly provided on the reagent kit 100 can be powered by a battery or the like energy storage device, or connected to the device main body 210 by using electrical contacts, wires, and the like elements. The execution assembly can include one of a solenoid valve, an electric push rod, a multi-way valve, and the like. It should be noted that the execution assembly can also be other driving structures, as long as it can drive the movable part 20 to rotate to the first state or rotate to the second state.

[0070] In some embodiments, an execution assembly can also be installed on the device body 210, and the execution assembly can be used to drive the movable member 20 to rotate around the fulcrum to the first state or to the second state. The execution assembly installed on the device body 210 can be reused, that is, even if the old cartridge 100 is replaced by a new cartridge 100, the execution assembly can still normally perform the work of driving the movable member 20. Alternatively, the energy source of the execution assembly installed on the device body 210 can be provided by the circuit of the blood gas analyzer 200.

[0071] The valve assembly of the cartridge 100 is described in detail below.

[0072] Please refer to FIGS. 5-10, and refer to FIGS. 2-4. FIG. 5 is a schematic diagram of a partial structure of the cartridge in the embodiment shown in FIG. 3. FIG. 6 is a schematic diagram of a partial structure of the bracket in the embodiment shown in FIG. 5. FIG. 7 is a schematic diagram of the structure of the movable member and the connecting member, the first sleeve part, the second sleeve part, and the connecting part in the embodiment shown in FIG. 3. FIG. 8 is a schematic diagram of the structure of the connecting member, the first sleeve part, the second sleeve part, and the connecting part in the embodiment shown in FIG. 7. FIG. 9 is a schematic diagram of the structure of the movable member in the embodiment shown in FIG. 3. FIG. 10 is a schematic diagram of a cross section of a partial structure of the cartridge along line B-B in the embodiment shown in FIG. 1.

[0073] As shown in FIGS. 2-10. In some embodiments, the cartridge 100 includes a cartridge body 30 and a valve assembly 40. The valve assembly 40 is arranged on the cartridge body 30. The cartridge body 30 is provided with a receiving cavity for accommodating a liquid bag. The valve assembly 40 includes a bracket 10 having a first fluid passage 111, a second fluid passage 112, and a third fluid passage 113 arranged at intervals, the first fluid passage 111 being used for communication with the outside space, the second fluid passage 112 being used for communication with the liquid bag of the cartridge 100, and the third fluid passage 113 being used for communication with a sample analysis assembly such as a test card of the blood gas analyzer 200; a movable member 20 capable of rotating around a fulcrum, which, when rotated to a first state, communicates the first fluid passage 111 and the third fluid passage 113 and blocks the second fluid passage 112. When the movable member 20 is rotated to a second state, the second fluid passage 112 and the third fluid passage 113 are communicated, and the first fluid passage 111 is blocked.

[0074] In some embodiments, in the structure of the kit 100 provided in the embodiments of the present application, the movable member 20 can be designed as a seesaw structure, and the rotation pivot point of the movable member 20 is arranged at the support 10. When the movable member 20 is subjected to an external force, the movable member 20 can rotate about the pivot point to different states. Specifically, as shown in FIG. 3, the "movable member 20 rotates to the first state" can be understood as: when the movable member 20 is subjected to an external force, the movable member 20 can rotate about the pivot point, and incline towards the second fluid passage 112 until the second fluid passage 112 is blocked. At this time, the first fluid passage 111 and the third fluid passage 113 are connected, and the gas in the external space can be introduced into the first fluid channel 101 between the first fluid passage 111 and the third fluid passage 113. As shown in FIG. 3, the "movable member 20 rotates to the second state" can be understood as: when the movable member 20 is subjected to an external force, the movable member 20 can rotate about the pivot point, and incline towards the first fluid passage 111 until the first fluid passage 111 is blocked. At this time, the second fluid passage 112 and the third fluid passage 113 are connected, and the liquid in the liquid bag can be introduced into the second fluid channel 103 between the second fluid passage 112 and the third fluid passage 113. For example, when the movable member 20 rotates to the second state, the cleaning liquid in the liquid bag can be introduced into the second fluid channel 103 between the second fluid passage 112 and the third fluid passage 113, or the reagent in the liquid bag can be introduced into the second fluid channel 103 between the second fluid passage 112 and the third fluid passage 113. In this way, by driving the movable member 20 to rotate about the pivot point to different states, one of the first fluid passage 111 and the second fluid passage 112 can be selectively blocked, and the other of the first fluid passage 111 and the second fluid passage 112 can be opened.

[0075] In some embodiments, the pivot point can be arranged at the region where the support 10 contacts the movable member 20.

[0076] Therefore, in the structural design of the kit 100 provided in the embodiments of the present application, the movable element 20 is designed as a seesaw structure, and the lever principle is used, so that the movable element 20 can rotate around the fulcrum to two different states when subjected to an external force, so that one of the first fluid passage 111 and the second fluid passage 112 can selectively communicate with the third fluid passage 113. Thus, two fluid passages are integrated in the valve assembly 40 of the kit 100, i.e. the first fluid passage 101 between the first fluid passage 111 and the third fluid passage 113, and the second fluid passage 103 between the second fluid passage 112 and the third fluid passage 113. In other words, the first fluid passage 101 and the second fluid passage 103 in the valve assembly 40 share the third fluid passage 113, and the movable element 20 is rotated to different states to selectively block one of the first fluid passage 111 and the second fluid passage 112, and open the other one, so that the two fluid passages can be integrated in the valve assembly 40 of the kit 100. Further, by rotating the movable element 20 to different states, the first fluid passage 101 or the second fluid passage 103 can be selectively blocked, and the valve assembly 40 of the kit 100 can be selectively communicated with the external space or the liquid bag, so that the switching of gas and liquid (i.e. gas-liquid switching function) can be realized. In other words, in the structure of the kit 100 of the present application, the lever principle can be used, and when the movable element 20 is rotated to different states under the action of an external force, the communication state of the first fluid passage 101 and the second fluid passage 103 can be selectively switched.

[0077] In addition, since the two fluid passages are integrated in the single valve assembly 40 of the kit 100, it is not necessary to additionally provide other valves or elements in the valve assembly 40 of the kit 100 to realize the gas-liquid switching function. Thus, on the basis of realizing the gas-liquid switching function, the number of valve assemblies 40 of the kit 100 is also reduced, so that not only the occupancy rate of the internal space of the valve assembly 40 of the kit 100 is reduced, but also the production cost is reduced.

[0078] It is worth noting that the "rotation to two different states" referred to in some embodiments of the present application mainly means that it needs to be rotated to become another state relative to one state, and does not necessarily mean that it is rotated twice. In some embodiments, when the movable element 20 rotates around the fulcrum to the first state, it can mean that the valve assembly of the kit 100 is in the initial state, i.e. the execution assembly of the kit 100 is in the non-working state. When the movable element 20 rotates around the fulcrum to the second state, it can mean that the valve assembly of the kit 100 is in the working state.

[0079] Please continue to refer to FIG. 5 and FIG. 6, in some embodiments, the bracket 10 has a groove body 11, the groove body 11 forms a first fluid passage 111, a second fluid passage 112 and a third fluid passage 113 on one side of the bottom of the groove body 11, and the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 are each provided with an opening at one end of the bottom of the groove body 11, and the opening 113a at one end of the third fluid passage 113 is located between the opening 111a at one end of the first fluid passage 111 and the opening 112a at one end of the second fluid passage 112.

[0080] In some embodiments, the angle of the bottom of the groove body 11 is viewed from above, and the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 are arranged side by side. Specifically, the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 can be arranged on the same straight line. That is, the centers of the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 can be arranged on the same straight line. In other embodiments, the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 can also not be arranged on the same straight line, for example, the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 can be arranged staggered. It should be noted that the specific arrangement position of the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 can be adjusted according to actual application, as long as the selective communication of the first fluid passage 111 and the third fluid passage 113, and the second fluid passage 112 and the third fluid passage 113 can be achieved.

[0081] As shown in FIG. 6, in some embodiments, the aperture of the opening 111a at one end of the first fluid passage 111 is substantially equal to the aperture of the opening 112a at one end of the second fluid passage 112. The aperture of the opening 113a at one end of the third fluid passage 113 is slightly larger than the aperture of the opening 111a at one end of the first fluid passage 111. It should be noted that the apertures of the openings at one end of the first fluid passage 111, the second fluid passage 112 and the third fluid passage 113 can also be designed according to actual application, for example, the apertures of the three openings can also be equal, and the present application does not make specific limitations.

[0082] As shown in FIGS. 2-4 and 9, in some embodiments, the movable member 20 has a base 21, a first movable portion 22, and a second movable portion 23. The first movable portion 22 and the second movable portion 23 are spaced apart and extend from the base 21 toward a side of the bottom of the tank 11, and the base 21 is capable of rotating about a fulcrum when subjected to an external force. When the base 21 rotates about the fulcrum to a first state, the first movable portion 22 is used to open an end opening 111a of the first fluid passage 111, and the second movable portion 23 is used to block an end opening 112a of the second fluid passage 112. When the base 21 rotates about the fulcrum to a second state, the first movable portion 22 is used to block the end opening 111a of the first fluid passage 111, and the second movable portion 23 is used to open the end opening 112a of the second fluid passage 112. That is, when the base 21 is subjected to an external force, the base 21 is capable of rotating about the fulcrum to different states, thereby changing the force state between the first movable portion 22 and the end opening 111a of the first fluid passage 111, and changing the force state between the second movable portion 23 and the end opening 112a of the second fluid passage 112. In this way, one of the end opening 111a of the first fluid passage 111 or the end opening 112a of the second fluid passage 112 is in a closed state, and the other is in an open state.

[0083] It should be noted that the movable member 20 subjected to an external force can mean that the external force is applied to the base 21 to drive the movable member 20, such as the base 21, to rotate about the fulcrum. In the embodiments of the present application, the meaning of the movable member 20 subjected to an external force and the base 21 subjected to an external force is basically the same.

[0084] Specifically, when the base 21 is subjected to an external force and rotates about the fulcrum to a first state, the first movable portion 22 is away from the end opening 111a of the first fluid passage 111, so it cannot block the end opening 111a of the first fluid passage 111, or the first movable portion 22 is not pressed against the end opening 111a of the first fluid passage 111, which is not enough to block the end opening 111a of the first fluid passage 111, thereby making the first fluid passage 111 in an open state. At the same time, according to the principle of leverage, the second movable portion 23 approaches and presses against the end opening 112a of the second fluid passage 112 to block the end opening 112a of the second fluid passage 112, thereby making the second fluid passage 112 in a blocked state. At this time, the first fluid passage 101 is in a connected state, and the second fluid passage 103 is in a closed state. That is, the first fluid passage 101 is connected, and the second fluid passage 103 is closed.

[0085] Similarly, when the base 21 is rotated about the fulcrum by an external force to the second state, the second movable part 23 is away from the one end opening 112a of the second fluid passage 112, thus cannot block the one end opening 112a of the second fluid passage 112, or the second movable part 23 is not away from the one end opening 112a of the second fluid passage 112, but does not press the one end opening 112a of the second fluid passage 112 tightly enough to block the one end opening 112a of the second fluid passage 112, thus the second fluid passage 112 is in an open state. At the same time, the first movable part 22 approaches and presses the one end opening 111a of the first fluid passage 111 to block the one end opening 111a of the first fluid passage 111, thus the first fluid passage 111 is in a blocked state. At this time, the second fluid passage 103 is in a connected state, and the first fluid passage 101 is in a closed state. That is, the first fluid passage 101 is closed, and the second fluid passage 103 is connected.

[0086] Thus, by using the lever principle and through the cooperation of the base 21, the first movable part 22 and the second movable part 23, one of the one end opening 111a of the first fluid passage 111 and the one end opening 111a of the first fluid passage 111 is selectively blocked, and the other is opened, so that two fluid passages can be integrated in the valve body assembly 40 of the kit 100 to realize gas-liquid switching in the valve body assembly 40 of the kit 100. In other words, by using the lever principle, when the movable part 20 is rotated about the fulcrum by an external force to different states, the connection state of the first fluid passage 101 and the second fluid passage 103 can be selectively switched to realize gas-liquid switching.

[0087] As shown in Figure 4, in some embodiments, the movable member 20 has a protrusion 24 on the side facing the bottom of the groove 11, and the protrusion 24 is located between the first movable member 22 and the second movable member 23. The bottom of the groove 11 has a groove 110 facing the protrusion 24, and the end of the protrusion 24 is embedded in the groove 110 so that the movable member 20 can rotate around the fulcrum within the groove 110. Specifically, the distance between the first movable member 22 and the protrusion 24 is defined as the first distance, and the distance between the second movable members 23 and the protrusion 24 is defined as the second distance. When the first distance is equal to the second distance, the position of the protrusion 24 corresponds to the center position of the base 21. At this time, the fulcrum corresponds to the center position of the base 21. When the first distance is not equal to the second distance, for example, when the first distance is slightly greater than or slightly less than the second distance, the position of the protrusion 24 is close to the center position of the base 21. The position of the protrusion 24 can be set according to the actual application, as long as the end of the protrusion 24 can be embedded in the groove 110 and the movable member 20 can rotate around the fulcrum within the groove 110. This application does not impose specific limitations. For example, since one end opening 113a of the third fluid passage 113 is located between one end opening 111a of the first fluid passage 111 and one end opening 112a of the second fluid passage 112, the position of the protrusion 24 on the movable member 20 can roughly correspond to the position above one end opening 113a of the third fluid passage 113. At this time, the position of the fulcrum also roughly corresponds to the position above one end opening 113a of the third fluid passage 113. Thus, when the movable member 20 is subjected to external force around the fulcrum, the lever principle can be used to selectively block one of the end openings 111a of the first fluid passage 111 and 112a of the second fluid passage 112, and open the other.

[0088] In some embodiments, the cross-sectional shape of the protrusion 24 is arc-shaped. It should be noted that the cross-sectional shape of the protrusion 24 can be a vertical cross-section, and its vertical direction can be parallel to the direction of the external force applied to the movable member 20. The diameter of the groove 110 is larger than the outer diameter of the end of the protrusion 24. The height of the protrusion 24 is greater than the depth of the groove 110, so that the movable member 20 can rotate around the fulcrum within the groove 110 when subjected to external force, and is not affected by the groove 110 during its rotational stroke.

[0089] As shown in FIG. 7, in some embodiments, the movable member 20 extends shafts 25 on both sides thereof, which are perpendicular to the line connecting the first movable part 22 and the second movable part 23. The bottom of the groove 11 has two grooves 110 facing the protrusions 24, which are located on both sides of the line connecting the first movable part 22 and the second movable part 23, and the shafts 25 are embedded in the two grooves 110, so that the movable member 20 can rotate around the fulcrum. That is, by arranging the shafts 25 on both sides of the movable member 20, the movable member 20 as a whole has a seesaw structure similar to a cross. One end of the shaft 25 is embedded in one of the two grooves 110, and the other end of the shaft 25 is embedded in the other of the two grooves 110. At this time, the fulcrum includes a first fulcrum and a second fulcrum. The first fulcrum is located at the region where one end of the shaft 25 is in contact with the corresponding groove 110, and the second fulcrum is located at the region where the other end of the shaft 25 is in contact with the corresponding groove 110.

[0090] As shown in FIGS. 2 and 6, in some embodiments, along the width direction of the groove 11, the two grooves 110 can be arranged on opposite sides of the one end opening 113a of the third fluid passage 113. The shaft 25 can span the one end opening 113a of the third fluid passage 113, and the two ends of the shaft 25 are embedded in the two grooves 110, respectively. The width direction of the groove 11 is perpendicular to the line connecting the first movable part 22 and the second movable part 23.

[0091] In some embodiments, the distance between the first movable part 22 and the center of the shaft 25 is set as a third distance, which is equal to or slightly greater than the distance between the second movable part 23 and the center of the shaft 25, which is set as a fourth distance. The third distance is equal to the fourth distance, or one is greater than the other.

[0092] In some embodiments, the cross-sectional shape of the two ends of the shaft 25 can be arc-shaped. It should be noted that the cross-sectional shape of the two ends of the shaft 25 can be the vertical cross-sectional shape thereof, and the vertical direction thereof can be parallel to the direction of the external force acting on the movable member 20.

[0093] As shown in FIG. 7, in some embodiments, the diameter of the groove 110 is greater than the outer diameter of the two ends of the corresponding shaft 25. In this way, the movable member 20 can rotate in the groove 110 around the fulcrum when subjected to an external force. That is, in addition to the two ends of the shaft 25, the other parts of the shaft 25 can have the same shape and size as the two ends of the shaft 25, or can have different shape and size from the two ends of the shaft 25, as long as the following condition is met: when the two ends of the shaft 25 are embedded in the two grooves 110, the movable member 20 can rotate in the groove 110 around the fulcrum when subjected to an external force.

[0094] In some embodiments, the distance between the end of the first movable part 22 and the base 21 is greater than the distance between the end of the second movable part 23 and the base 21. That is, the length of the first movable part 22 is greater than or equal to the length of the second movable part 23 in the direction of the external force. When the length of the first movable part 22 is greater than the length of the second movable part 23, a smaller external force can be used to switch the movable part 20 from the first state to the second state.

[0095] In some embodiments, the respective ends of the first movable part 22 and the second movable part 23 are respectively sleeved with the first sleeve part 41 and the second sleeve part 42. The first movable part 22 blocks the one end opening 111a of the first fluid passage 111 through the first sleeve part 41, and the second movable part 23 blocks the one end opening 112a of the second fluid passage 112 through the second sleeve part 42.

[0096] Specifically, when the movable part 20 is rotated about the fulcrum to the first state under the external force, the first movable part 22 is away from the one end opening 111a of the first fluid passage 111, and thus cannot or is not enough to press the first sleeve part 41, and thus cannot block the one end opening 111a of the first fluid passage 111. At the same time, according to the lever principle, the second movable part 23 is close to the one end opening 112a of the second fluid passage 112, presses the bottom of the second sleeve part 42, and thus presses the one end opening 112a of the second fluid passage 112 to block the one end opening 112a of the second fluid passage 112, i.e., the second fluid passage 112 is in the blocked state. At this time, the first fluid passage 101 is in the connected state, and the second fluid passage 103 is in the closed state. That is, the first fluid passage 101 is connected, and the second fluid passage 103 is closed.

[0097] Similarly, when the movable part 20 is rotated about the fulcrum to the second state under the external force, the second movable part 23 is away from the one end opening 112a of the second fluid passage 112, and thus cannot or is not enough to press the second sleeve part 42, and thus cannot block the one end opening 112a of the second fluid passage 112. At the same time, according to the lever principle, the first movable part 22 is close to the one end opening 111a of the first fluid passage 111, presses the bottom of the first sleeve part 41, and thus presses the one end opening 111a of the first fluid passage 111 to block the one end opening 111a of the first fluid passage 111, i.e., the first fluid passage 111 is in the blocked state. At this time, the first fluid passage 101 is in the closed state, and the second fluid passage 103 is in the connected state. That is, the first fluid passage 101 is closed, and the second fluid passage 103 is connected.

[0098] Thus, by the cooperation of the first movable part 22 and the first sleeve part 41, the cooperation of the second movable part 23 and the second sleeve part 42, and the leverage principle, the communication state of the first fluid passage 101 and the second fluid passage 103 can be selectively switched when the movable part 20 is rotated around the pivot point to different states by external force.

[0099] As shown in FIG. 7, in some embodiments, the first sleeve part 41 is provided with a first accommodating cavity 401 on the side facing the first movable part 22, and the first movable part 22 can move in the direction away from the bottom of the first accommodating cavity 401. The second sleeve part 42 is provided with a second accommodating cavity 402 on the side facing the second movable part 23, and the second movable part 23 can move in the direction away from the bottom of the second accommodating cavity 402.

[0100] Specifically, when the movable part 20 is rotated around the pivot point to the first state by external force, the first movable part 22 can move in the direction away from the bottom of the first accommodating cavity 401. At this time, the first movable part 22 cannot press or is not enough to press the first sleeve part 41, so it cannot block the one end opening 111a of the first fluid passage 111.

[0101] Similarly, when the movable part 20 is rotated around the pivot point to the second state by external force, the second movable part 23 can move in the direction away from the bottom of the second accommodating cavity 402. At this time, the second movable part 23 cannot press or is not enough to press the second sleeve part 42, so it cannot block the one end opening 112a of the second fluid passage 112.

[0102] It should be noted that the first movable part 22 can move in the direction away from the bottom of the first accommodating cavity 401, which can be understood as that the first movable part 22 can partially move out of the first accommodating cavity 401, or the first movable part 22 can move out of the first accommodating cavity 401 as a whole. The specific adjustment can be made according to the design structure of the first movable part 22 or the actual application requirement, which is not limited in the present application. Similarly, the second movable part 23 can move in the direction away from the bottom of the second accommodating cavity 402, which also has a similar understanding and will not be repeated here.

[0103] As shown in FIG. 8, in some embodiments, the first sleeve part 41 has a first blocking part 411, and the second sleeve part 42 has a second blocking part 421. The first blocking part 411 is arranged on the side of the first sleeve part 41 facing the one end opening 111a of the first fluid passage 111, and is arranged correspondingly with the first sleeve part 41. The second sleeve part 42 is arranged on the side of the second sleeve part 42 facing the one end opening 112a of the second fluid passage 112, and is arranged correspondingly with the second sleeve part 42.

[0104] Specifically, when the movable member 20 is rotated about the fulcrum by an external force to the first state, the second blocking portion 421 is pressed against the one end opening 112a of the second fluid passage 112 until the one end opening 112a of the second fluid passage 112 is blocked. At the same time, according to the lever principle, the first blocking portion 411 cannot or is insufficient to be pressed against the one end opening 111a of the first fluid passage 111, so that there is a gap between the first blocking portion 411 and the one end opening 111a of the first fluid passage 111. That is, the one end opening 111a of the first fluid passage 111 is in an open state.

[0105] When the movable member 20 is rotated about the fulcrum by an external force to the second state, the first blocking portion 411 is pressed against the one end opening 111a of the first fluid passage 111 until the one end opening 111a of the first fluid passage 111 is blocked. At the same time, according to the lever principle, the second blocking portion 421 cannot or is insufficient to be pressed against the one end opening 112a of the second fluid passage 112, so that there is a gap between the second blocking portion 421 and the one end opening 112a of the second fluid passage 112. That is, the one end opening 112a of the second fluid passage 112 is in an open state.

[0106] Thus, by the cooperation of the first movable portion 22, the first sleeve portion 41 and the first blocking portion 411, and the cooperation of the second movable portion 23, the second sleeve portion 42 and the second blocking portion 421, and by the lever principle, when the movable member 20 is rotated about the fulcrum by an external force to different states, the communication state of the first fluid passage 101 and the second fluid passage 103 can be selectively switched.

[0107] In some embodiments, the first blocking portion 411 and the second blocking portion 421 can also be omitted, as long as the applied force is large enough to enable the first sleeve portion 41 to press the one end opening 111a of the first fluid passage 111 or the second sleeve portion 42 to press the one end opening 112a of the second fluid passage 112.

[0108] In some embodiments, the length of the first blocking portion 411 is greater than the length of the second blocking portion 421. That is, in the direction of the external force, the length of the first blocking portion 411 is greater than the length of the second blocking portion 421. When the length of the first blocking portion 411 is greater than the length of the second blocking portion 421, only a small external force is required to achieve the conversion of the movable member 20 from the first state to the second state when the movable member 20 is rotated from the first state to the second state. It can be understood that the length of the first blocking portion 411 can also be equal to the length of the second blocking portion 421.

[0109] In some embodiments, the first movable part 22 comprises a first enlarged portion 222a and a first base portion 221 connected between the first enlarged portion 222a and the base 21, the first enlarged portion 222a is received in the first receiving cavity 401, the first receiving cavity 401 has an opening with a diameter smaller than that of the first enlarged portion 222a, and when the base 21 is rotated about the pivot point to the first state, the first enlarged portion 222a is capable of abutting against the bottom of the first sleeve portion 41 so as to allow the first blocking portion 411 to block the one end opening 111a of the first fluid passage 111. The second movable part 23 comprises a second enlarged portion 232a and a second base portion 231 connected between the second enlarged portion 232a and the base 21, the second base portion 231 is connected between the second enlarged portion 232a and the base 21, the second enlarged portion 232a is received in the second receiving cavity 402, the second receiving cavity 402 has an opening with a diameter smaller than that of the second enlarged portion 232a, and when the base 21 is rotated about the pivot point to the second state, the second enlarged portion 232a is capable of abutting against the bottom of the second sleeve portion 42 so as to allow the second blocking portion 421 to block the one end opening 112a of the second fluid passage 112.

[0110] In some embodiments, the cross-sectional shape of the first base portion 221 and / or the cross-sectional shape of the second base portion 231 is rectangular.

[0111] As shown in FIG. 9, in some embodiments, the radial dimension of the first enlarged portion 222a gradually decreases along the direction in which the first base portion 221 extends, and the radial dimension of the second enlarged portion 232a gradually decreases along the direction in which the second base portion 231 extends. That is, the first enlarged portion 222a and the second enlarged portion 232a can have a truncated cone structure. Accordingly, the shape of the first receiving cavity 401 can match that of the first enlarged portion 222a, as long as the first enlarged portion 222a can move in the first receiving cavity 401. Similarly, the shape of the second receiving cavity 402 can match that of the second enlarged portion 232a, as long as the second enlarged portion 232a can move in the second receiving cavity 402.

[0112] In some embodiments, the first enlarged portion 222a can also be clamped in the first receiving cavity 401, and when the movable part 20 is rotated about the pivot point by an external force, the first enlarged portion 222a drives the first sleeve portion 41 to move together in the direction of pressing or loosening the one end opening 111a of the first fluid passage 111, so as to selectively block or open the one end opening 111a of the first fluid passage 111. Similarly, when the movable part 20 is rotated about the pivot point by an external force, the second enlarged portion 232a drives the second sleeve portion 42 to move together in the direction of pressing or loosening the one end opening 112a of the second fluid passage 112, so as to selectively block or open the one end opening 112a of the second fluid passage 112.

[0113] In some embodiments, the first sleeve portion 41, the second sleeve portion 42, the first blocking portion 411, and the second blocking portion 421 can all be made of flexible material.

[0114] As shown in FIGS. 7 and 8, in some embodiments, the kit 100 further comprises a connecting member 43 connected to the first sleeve portion 41 and the second sleeve portion 42 and extending to an area outside the first sleeve portion 41 and the second sleeve portion 42. Specifically, the connecting member 43 can be disposed between the bottom of the tank 11 and the movable member 20. The connecting member 43 at least partially covers a portion of the area of the bottom of the tank 11, for example, an area outside the first sleeve portion 41 and the second sleeve portion 42. The area where the connecting member 43 extends at least includes an area between the first end opening 111a of the first fluid passage 111 and the second end opening 112a of the second fluid passage 112.

[0115] As shown in FIG. 10, in some embodiments, the connecting member 43 is provided with a recess 403 on the side facing away from the movable member 20, and the recess 403 and the first end opening 113a of the third fluid passage 113 form a first gap 405. The first gap 405 is used to communicate with the first fluid passage 111 and the external space when the first fluid passage 111 is in a communication state, and the first gap 405 is used to communicate with the second fluid passage 112 and the liquid bag when the second fluid passage 112 is in a communication state. Specifically, the part formed by the connecting member 43, the bottom surface of the first sleeve portion 41, and the bottom surface of the second sleeve portion 42 is referred to as a connecting body, and the side of the connecting body facing the first end opening 113a of the third fluid passage 113 is provided with the recess 403. The recess 403 and the first end opening 113a of the third fluid passage 113 form the first gap 405.

[0116] In some embodiments, the movable member 20 can be integrally formed with the first sleeve portion 41, the second sleeve portion 42, and the connecting member 43.

[0117] In some embodiments, the kit 100 further comprises a support member 50 disposed on the side of the connecting member 43 facing the movable member 20. A portion of the support member 50 abuts against the outer edge of the connecting member 43, and another portion of the support member 50 abuts against the peripheral area of the bottom of the tank 11 corresponding to the connecting member 43. Specifically, the first end portion of the support member 50 abuts against the first edge of the connecting member 43, and the first edge at least includes an area of the connecting member 43 corresponding to the area where the first sleeve portion 41 faces away from the second sleeve portion 42, so as to block the communication between the first end opening 111a of the first fluid passage 111 and the first edge. The second end portion 212 of the support member 50 abuts against the second edge of the connecting member 43, and the second edge at least includes an area of the connecting member 43 corresponding to the area where the second sleeve portion 42 faces away from the first sleeve portion 41, so as to block the communication between the first end opening 111a of the first fluid passage 111 and the first edge.

[0118] In some embodiments, the kit 100 further comprises a fixing member 60, which is accommodated in the groove 11 and covers the bottom of the groove 11. The fixing member 60 has an accommodation cavity 601, in which the movable member 20, the connecting member 43 and the support member 50 are accommodated, and the opening edge of the accommodation cavity 601 presses the support member 50.

[0119] In some embodiments, the accommodation cavity 601 forms a second gap 605 between the side close to the bottom of the groove 11 and the bottom of the groove 11, and the edge of the support member 50 and the edge of the connecting member 43 are stacked and arranged in the second gap 605.

[0120] In some embodiments, the bottom of the groove 11 further forms a fourth fluid passage 114, which is arranged on the side opposite to the third fluid passage 113 on the first fluid passage 111, and the fourth fluid passage 114 is used to communicate with the external space.

[0121] In some embodiments, the connecting member 43 further comprises a connecting portion 431, which is arranged on the side away from the second sleeve portion 42 of the first sleeve portion 41, and the connecting portion 431 covers at least one end opening of the fourth fluid passage 114 on the bottom of the groove 11.

[0122] In some embodiments, the fixing member 60 has a first accommodating groove 602, in which the connecting portion 431 is accommodated.

[0123] In some embodiments, the connecting portion 431 is provided with a through hole 4310, one end of the through hole 4310 communicates with one end opening of the fourth fluid passage 114, and the other end of the through hole 4310 communicates with the external space. It can be understood that the connecting portion 431 can also be omitted, and the fourth fluid passage 114 can also be omitted.

[0124] In some embodiments, the kit 100 further comprises a pressing cap member 70, which is arranged between the movable member 20 and the top of the fixing member 60, and the pressing cap member 70 can move in the accommodation cavity 601 towards the movable member 20 or away from the movable member 20.

[0125] In some embodiments, the cover 70 comprises a base 73, a first cover portion 71 and a second cover portion 72. The first cover portion 71 and the second cover portion 72 are arranged on the side of the base 73 facing the movable member 20. The first cover portion 71 is movable in the accommodation cavity 601 towards the first movable portion 22 or away from the first movable portion 22, so as to selectively abut against the first end portion 211 of the base 21 facing away from the first movable portion 22. The second cover portion 72 is movable in the accommodation cavity 601 towards the second movable portion 23 or away from the second movable portion 23, so as to selectively abut against the second end portion 212 of the base 21 facing away from the second movable portion 23.

[0126] In some embodiments, the second cover portion 72 is provided with a second accommodating groove 702. Specifically, the second cover portion 72 comprises a moving rod 721, which is movable in the second accommodating groove 702 when subjected to an external force, and is movable towards the second movable portion 23 or away from the second movable portion 23, so as to selectively abut against the second end portion 212 of the base 21 facing away from the second movable portion 23.

[0127] In some embodiments, the moving rod 721 comprises a moving rod body 7211 and a protrusion 7212 extending from the moving rod body 7211. The protrusion 7212 is capable of abutting against the second end portion 212 of the base 21 facing away from the second movable portion 23 when subjected to an external force. The radial dimension of the moving rod body 7211 is smaller than the radial dimension of the protrusion 7212. The minimum diameter of the second accommodating groove 702 is greater than or equal to the maximum radial dimension of the protrusion 7212.

[0128] In some embodiments, the kit 100 further comprises an elastic member 80, which is sleeved on the moving rod body 7211 and has an elastic force applied on the protrusion 7212, the elastic force being directed towards the second movable portion 23.

[0129] Specifically, the elastic force of the elastic member 80 applied to the protrusion 7212 is defined as a first external force. The force applied to the first cover portion 71 by the execution assembly is defined as a second external force. The vector sum of the first external force and the second external force is collectively defined as an external force. Without the second external force, the elastic member 80 provides the elastic force applied to the protrusion 7212 of the moving rod 721, and the elastic force also acts on the bottom of the second accommodating groove 702, so that the cover member 70 abuts against the top of the fixing member 60, and finally is limited by the top of the fixing member 60 and cannot continue to move. In this way, the elastic force drives the protrusion 7212 of the moving rod 721 to move towards the second movable portion 23, and the movable member 20 receives the elastic force and rotates about the fulcrum to the first state. At this time, the second movable portion 23 presses the one end opening 112a of the second fluid passage 112 to block the one end opening 112a of the second fluid passage 112, so that the second fluid passage 112 is in a blocked state. Further, according to the lever principle, the first movable portion 22 is away from the one end opening 111a of the first fluid passage 111, so that the first movable portion 22 cannot block the one end opening 111a of the first fluid passage 111, or the first movable portion 22 is insufficient to block the one end opening 111a of the first fluid passage 111, so that the first fluid passage 111 is in an open state. In this way, the elastic force applied to the moving rod 721 by the elastic member 80 can drive the movable member 20 to rotate about the fulcrum to the first state, so that the first fluid passage 101 is in a connected state, and the second fluid passage 103 is in a closed state.

[0130] It should be noted that when the movable member 20 rotates about the fulcrum to the first state under the first external force, the first end portion 211 of the base 21 is not in contact with the first cover portion 71, that is, there is a predetermined distance between the two. The size of the predetermined distance can be set according to actual application. Alternatively, even if the first end portion 211 of the base 21 is in contact with the first cover portion 71, the first cover portion 71 does not apply a force to the first end portion 211 of the base 21.

[0131] Optionally, the elastic member 80 can be a compression spring.

[0132] It should be noted that when the valve assembly of the kit 100 is in the initial state, the elastic member 80 can drive the movable member 20 to rotate to the first state, so that the external space is in communication with the first fluid passage 101, and at this time the gas can be introduced. That is, when the valve assembly is in the initial state, the first fluid passage 101 is in a connected state.

[0133] When gas-liquid switching is needed, the valve assembly can be started by executing the assembly. Specifically, the execution assembly applies a second external force to the first gland part 71, the first gland part 71 is moved towards the first movable part 22 under the second external force, and at the same time, the second gland part 72 is also moved towards the first movable part 22 under the second external force, and the moving rod 721 is continuously pressed against the second movable part 23 under the action of the elastic member 80. The second external force is greater than the first external force, so that the second movable part 23 is continuously pressed by the moving rod 721, and at the same time, the first movable part 22 is finally pressed by the first gland part 71, until the first pressing force of the first movable part 22 is greater than the second pressing force of the second movable part 23, so that the movable part 20 is rotated around the fulcrum under the second external force to the second state. At this time, the first movable part 22 finally presses the one end opening 111a of the first fluid passage 111 to block the one end opening 111a of the first fluid passage 111, and then the first fluid passage 111 is in a blocked state. At the same time, according to the lever principle, although the second movable part 23 is continuously pressed by the second pressing force, because the elastic member 80 can continuously deform, and the stroke of the moving rod 721 is also large enough, so that under the condition that the first pressing force is greater than the second pressing force, the second movable part 23 leaves the one end opening 112a of the second fluid passage 112, and cannot or is not enough to block the one end opening 112a of the second fluid passage 112, so that the second fluid passage 103 is in a connected state. Thus, the second external force applied to the first gland part 71 by the execution assembly can drive the movable part 20 to rotate around the fulcrum to the second state, so that the second fluid passage 103 is in a connected state, and the first fluid passage 101 is in a closed state.

[0134] It should be noted that the support 10, the movable part 20, the connecting part 43, the gland part 70, the fixed part 60, the moving rod 721, the elastic member 80 and other components in the embodiments provided in the present application can constitute a valve assembly of the kit 100.

[0135] In the structural design of the kit 100 provided in the embodiments of the present application, the movable element 20 is designed as a rotatable structure, so that the movable element 20 can rotate to two different states when subjected to an external force, so that one of the first fluid passage 111 and the second fluid passage 112 can selectively communicate with the third fluid passage 113. Thus, two fluid passages are integrated in the valve body assembly 40 of the kit 100, i.e. the first fluid passage 101 between the first fluid passage 111 and the third fluid passage 113, and the second fluid passage 103 between the second fluid passage 112 and the third fluid passage 113. In other words, the first fluid passage 101 and the second fluid passage 103 in the valve body assembly 40 share the third fluid passage 113, and one of the first fluid passage 111 and the second fluid passage 112 is selectively blocked by the movable element 20, and the other is opened, so that the two fluid passages can be integrated in the valve body assembly 40 of the kit 100. Further, by rotating the movable element 20 to different states, the first fluid passage 101 or the second fluid passage 103 can be selectively blocked, and the valve body assembly 40 of the kit 100 can be selectively communicated with the external space or the liquid bag, so that the switching of gas and liquid (i.e. gas-liquid switching function) can be realized. In other words, by using the principle of lever, when the movable element 20 is rotated to different states by an external force, the communication state of the first fluid passage 101 (e.g. the first fluid passage 101 between the first fluid passage 111 and the third fluid passage 113) and the second fluid passage 103 (e.g. the second fluid passage 103 between the second fluid passage 112 and the third fluid passage 113) can be selectively switched to realize gas-liquid switching.

[0136] Further, since the two fluid passages are integrated in the valve body assembly 40 of the kit 100, it is not necessary to additionally provide other valves or elements in the valve body assembly 40 of the kit 100 to realize the gas-liquid switching function. Thus, on the basis of realizing the gas-liquid switching function, the number of valve body assemblies 40 of the kit 100 is also reduced, so that not only the occupancy rate of the internal space of the valve body assembly 40 of the kit 100 is reduced, but also the production cost is reduced.

[0137] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A reagent kit for a blood gas analyzer, characterized in that, The kit includes: The support has a first fluid passage, a second fluid passage, and a third fluid passage spaced apart. The first fluid passage is used to communicate with the external space, the second fluid passage is used to communicate with the liquid bag of the reagent kit, and the third fluid passage is used to communicate with the sample analysis component of the blood gas analyzer. The movable component is rotatable. When rotated to a first state, it connects the first fluid passage and the third fluid passage and blocks the second fluid passage. When rotated to a second state, it connects the second fluid passage and the third fluid passage and blocks the first fluid passage.

2. The reagent kit according to claim 1, characterized in that, The bracket has a groove, and a first fluid passage, a second fluid passage and a third fluid passage are formed on one side of the bottom of the groove. One end opening of each of the first fluid passage, the second fluid passage and the third fluid passage is located at the bottom of the groove, and one end opening of the third fluid passage is located between one end opening of the first fluid passage and one end opening of the second fluid passage.

3. The reagent kit according to claim 2, characterized in that, The movable component has a base, a first movable part and a second movable part, the first movable part and the second movable part are spaced apart and extend from the base toward the bottom of the groove, and the base can rotate around the fulcrum when subjected to external force. When the base rotates around the fulcrum to the first state, the first movable part is used to open one end of the first fluid passage, and the second movable part is used to block one end of the second fluid passage. When the base rotates around the fulcrum to the second state, the first movable part is used to block one end opening of the first fluid passage, and the second movable part is used to open one end opening of the second fluid passage.

4. The reagent kit according to claim 3, characterized in that, The movable component has a protrusion on the side facing the bottom of the groove, the protrusion being located between the first movable component and the second movable component; the bottom of the groove has a groove facing the protrusion, the end of the protrusion being embedded in the groove so that the movable component can rotate around the fulcrum within the groove.

5. The reagent kit according to claim 4, characterized in that, The movable part extends from both sides with shaft portions perpendicular to the line connecting the first movable part and the second movable part; the bottom of the groove has two grooves facing the protrusion, the two grooves are located on both sides of the line connecting the first movable part and the second movable part, and the shaft portions are embedded in the two grooves so that the movable part can rotate around the fulcrum.

6. The reagent kit according to claim 3, characterized in that, The first movable part and the second movable part are respectively fitted with a first socket and a second socket at their respective ends. The first movable part blocks one end opening of the first fluid passage through the first socket, and the second movable part blocks one end opening of the second fluid passage through the second socket.

7. The reagent kit according to claim 6, characterized in that, The kit further includes a connector that is connected to the first socket and the second socket and extends to an area outside the first socket and the second socket.

8. The reagent kit according to claim 7, characterized in that, The first socket portion has a first receiving cavity on the side facing the first movable portion, and the first movable portion can move in the first receiving cavity in a direction away from or away from the bottom of the first receiving cavity; The second socket has a second receiving cavity on the side facing the second movable part, and the second movable part can move in the direction away from or away from the bottom of the second receiving cavity.

9. The reagent kit according to claim 8, characterized in that, The first socket has a first blocking part, and the second socket has a second blocking part. The first blocking part is disposed on the side of the first socket that opens toward the first fluid passage and is correspondingly disposed to the first socket. The second socket is disposed on the side of the second socket that opens toward the second fluid passage and is correspondingly disposed to the second socket.

10. The reagent kit according to claim 9, characterized in that, The first movable part includes a first enlarged part and a first base connected to the first enlarged part and the base. The first enlarged part is accommodated in the first receiving cavity. The opening diameter of the first receiving cavity is smaller than the diameter of the first enlarged part. When the base rotates around the fulcrum to the first state, the first enlarged part can abut against the bottom of the first sleeve part so that the first sealing part blocks one end opening of the first fluid passage. The second movable part includes a second enlarged part and a second base. The second base is connected between the second enlarged part and the base. The second enlarged part is accommodated in the second receiving cavity. The opening diameter of the second receiving cavity is smaller than the diameter of the second enlarged part. When the base rotates around the fulcrum to the second state, the second enlarged part can abut against the bottom of the second sleeve part so that the second sealing part blocks one end opening of the second fluid passage.

11. The reagent kit according to claim 9, characterized in that, The length of the first sealing part is greater than the length of the second sealing part.

12. The kit according to claim 7, characterized in that, The connector has a recess on the side opposite to the movable part, and a first gap is formed between the recess and one end opening of the third fluid passage. The first gap is used to communicate with the first fluid passage and the external space when the first fluid passage is in a connected state, and the first gap is used to communicate with the second fluid passage and the liquid bag when the second fluid passage is in a connected state.

13. The reagent kit according to claim 10, characterized in that, The radial dimension of the first enlarged portion gradually decreases along the direction of extension of the first base, and the radial dimension of the second enlarged portion gradually decreases along the direction of extension of the second base.

14. The kit according to claim 4, characterized in that, The two grooves are located on opposite sides of the opening at one end of the third fluid passage.

15. The reagent kit according to claim 4, characterized in that, The cross-sectional shape of the protrusion is arc-shaped, and the diameter of the groove is larger than the outer diameter of the protrusion.

16. The reagent kit according to claim 4, characterized in that, The distance between the end of the first movable part and the base is greater than the distance between the end of the second movable part and the base.

17. The kit according to claim 10, characterized in that, The cross-sectional shape of the first base and / or the cross-sectional shape of the second base are rectangular.

18. The reagent kit according to claim 7, characterized in that, The kit further includes a support member disposed on the side of the connector facing the movable member, a portion of the support member abutting the outer edge of the connector, and another portion of the support member abutting the bottom of the groove corresponding to the peripheral area of ​​the connector.

19. The reagent kit according to claim 18, characterized in that, The reagent kit further includes: a fixing member, which is housed in the tank and covers the bottom of the tank; The fixing member has a receiving cavity, in which the movable member, the connecting member and the support member are accommodated, and the opening edge of the receiving cavity presses against the support member.

20. The reagent kit according to claim 19, characterized in that, The receiving cavity forms a second gap between the side near the bottom of the groove and the bottom of the groove, and the edges of the support and the edges of the connector are stacked and embedded in the second gap.

21. The reagent kit according to claim 19, characterized in that, A fourth fluid passage is also formed on one side of the bottom of the tank. The fourth fluid passage and the third fluid passage are located on opposite sides of the first fluid passage. The fourth fluid passage is used to communicate with the outside space.

22. The kit according to claim 21, characterized in that, The connector further includes a connecting portion that extends from the side of the first sleeve portion away from the second sleeve portion, and the connecting portion at least covers the opening at the bottom of the fourth fluid passage located in the tank.

23. The reagent kit according to claim 22, characterized in that, The fastener has a first receiving groove, and the connecting portion is received in the first receiving groove.

24. The reagent kit according to claim 23, characterized in that, The connecting part is provided with a through hole, one end of which is connected to the opening of one end of the fourth fluid passage, and the other end of which is connected to the external space.

25. The reagent kit according to claim 19, characterized in that, The kit further includes a capping member disposed between the top of the movable member and the fixed member, the capping member being movable within the receiving cavity in a direction toward or away from the movable member.

26. The reagent kit according to claim 25, characterized in that, The pressure cap includes a base, a first pressure cap portion, and a second pressure cap portion. The first pressure cap portion and the second pressure cap portion are disposed on the side of the base facing the movable member. The first pressure cap portion is movable within the receiving cavity in a direction close to or away from the first movable portion to selectively abut against a first end of the base away from the first movable portion. The second pressure cap portion is movable within the receiving cavity in a direction close to or away from the second movable portion to selectively abut against a second end of the base away from the second movable portion.

27. The reagent kit according to claim 26, characterized in that, The second pressure cap portion is provided with a second receiving groove; The second pressure cap includes a movable rod that can move within the second receiving groove when subjected to an external force. The direction of movement is either toward the second movable part or toward the second movable part, so as to selectively abut against the second end of the base away from the second movable part.

28. The reagent kit according to claim 27, characterized in that, The movable rod includes a movable rod body and a protrusion extending from the movable rod body. When subjected to external force, the protrusion can abut against the second end of the base away from the second movable part. The radial dimension of the movable rod is smaller than the radial dimension of the protrusion, and the minimum diameter of the second receiving groove is greater than or equal to the maximum radial dimension of the protrusion.

29. The reagent kit according to claim 28, characterized in that, The kit further includes: an elastic element, sleeved on the movable rod, having an elastic force applied to the protrusion, the elastic force being directed toward the second movable part.

30. A blood gas analyzer, characterized in that, include: Equipment body; The reagent kit is connected to the main body of the device; The kit includes: The support has a first fluid passage, a second fluid passage, and a third fluid passage spaced apart. The first fluid passage is used to communicate with the external space, the second fluid passage is used to communicate with the liquid bag of the reagent kit, and the third fluid passage is used to communicate with the sample analysis component of the blood gas analyzer. The movable component is rotatable. When rotated to a first state, it connects the first fluid passage and the third fluid passage and blocks the second fluid passage. When rotated to a second state, it connects the second fluid passage and the third fluid passage and blocks the first fluid passage.

31. The blood gas analyzer according to claim 30, characterized in that, The kit further includes: a box body having a receiving cavity for receiving the liquid bag, and the support and the movable part being disposed in the box body; The first infusion path is located in the body of the kit, and the fluid outlet of the third fluid passage is connected to the first infusion path to introduce cleaning solution into the docking slot of the kit.

32. The blood gas analyzer according to claim 30, characterized in that, The kit further includes: a box body having a receiving cavity for receiving the liquid bag, and the support and the movable part being disposed in the box body; The second infusion path is located in the body of the kit, and the fluid outlet of the third fluid passage is connected to the second infusion path for introducing reagents into the test kit through the sampling component of the kit.

33. The blood gas analyzer according to claim 30, characterized in that, The liquid bag includes a cleaning liquid bag or a reagent liquid bag, and the main body of the device does not have a liquid path.

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