Liquid path control system of blood coagulation analyzer

Abstract

The utility model provides a liquid path control system of a blood coagulation analyzer. The liquid path control system comprises a flushing fluid caching module, a first flow dividing module, a second flow dividing module, a first sample adding and cleaning module, a second sample adding and cleaning module and a waste liquid collecting and discharging module, the flushing fluid caching module is connected with the waste liquid collecting and discharging module through the first flow dividing module and the first sample adding and cleaning module in sequence, and is connected with the waste liquid collecting and discharging module through the second flow dividing module and the second sample adding and cleaning module in sequence; wherein the first sample adding and cleaning module comprises a first sample needle sub-module, a first reagent needle sub-module, a first double-reagent needle sub-module and a puncture needle sub-module; the second sample adding and cleaning module comprises at least one of a second double-reagent needle sub-module, a second reagent needle sub-module and a second sample needle sub-module. The sample size is doubled in the same treatment time, and the problems that an existing full-automatic blood coagulation analyzer is only provided with one test system, the number of samples treated in unit time is small, and the efficiency is high are solved. And the ever-increasing demand processing cannot be realized.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a fluid circuit control system of a coagulation analyzer. Background Art

[0002] The fully automatic coagulation analyzer is an essential in vitro testing device in clinical practice, mainly used for risk assessment of bedside surgery and diagnosis and prevention of cardiovascular and cerebrovascular diseases. According to data, the demand for fully automatic analyzers in various medical institutions has increased significantly, and at the same time, higher requirements have been put forward for the sample processing speed of the fully automatic coagulation analyzer.

[0003] Currently, the fully automatic coagulation analyzer on the market has only one test system, and its liquid control system is relatively simple: one diaphragm pump is used for cleaning, and the number of samples processed per unit time is small, which cannot meet the growing processing needs. Utility Model Content

[0004] In this regard, the present application provides a fluid control system for a coagulation analyzer to solve the problem that the existing fully automatic coagulation analyzer has only one test system and a relatively simple fluid control system: one diaphragm pump is used for cleaning corresponding to one sample adding needle, and the number of samples processed per unit time is small, which cannot meet the growing processing needs.

[0005] To achieve the above objectives, the present application provides the following technical solutions:

[0006] The present application discloses a fluid circuit control system of a coagulation analyzer, comprising:

[0007] A flushing liquid cache module, a first flow diversion module, a second flow diversion module, a first sample addition and cleaning module, a second sample addition and cleaning module, and a waste liquid collection and discharge module;

[0008] The flushing liquid buffer module is connected to the waste liquid collecting and discharging module through the first flow dividing module and the first sample adding and cleaning module in sequence, and is connected to the waste liquid collecting and discharging module through the second flow dividing module and the second sample adding and cleaning module in sequence;

[0009] Among them, the first sample loading and cleaning module includes: a first sample needle module, a first reagent needle module, a first dual reagent needle module, and a puncture needle module; the second sample loading and cleaning module includes at least one of the following: a second dual reagent needle module, a second reagent needle module, and a second sample needle module.

[0010] Optionally, in the above-mentioned fluid circuit control system of the coagulation analyzer, the flushing liquid buffer module comprises: a flushing liquid buffer device, a first diaphragm pump and a flushing liquid supply module;

[0011] The flushing liquid supply module includes at least one flushing liquid supply submodule, and the flushing liquid supply submodule includes: a flushing liquid barrel, a filter and a solenoid valve; the filter is built into the flushing liquid barrel and connected to the inlet of the first diaphragm pump through the solenoid valve;

[0012] The outlet of the first diaphragm pump is connected to the injection port of the flushing liquid buffer device.

[0013] Optionally, in the above-mentioned fluid circuit control system of the coagulation analyzer, the number of the flushing liquid supply submodules is 4, and the solenoid valves in each of the flushing liquid supply submodules are integrated into the same valve seat.

[0014] Optionally, in the liquid circuit control system of the above-mentioned coagulation analyzer, the flushing liquid buffer device includes: a first liquid suction port, a second liquid suction port, a third liquid suction port, a fourth liquid suction port, a fifth liquid suction port, a sixth liquid suction port, and a seventh liquid suction port;

[0015] The first flow dividing module comprises: a first flow dividing device, a first filter, a second filter, a second diaphragm pump, a third diaphragm pump, a first one-way valve, a second one-way valve, a first pressure regulating valve, a first capillary tube and a first solenoid valve;

[0016] The outlet of the first solenoid valve serves as the first output port of the first shunt module, and the inlet of the first solenoid valve is connected to the outlet of the second diaphragm pump and the outlet of the first one-way valve respectively, and the connection points serve as the second output port of the first shunt module; the inlet of the second diaphragm pump is connected to one end of the first filter, and the other end of the first filter serves as the first input port of the first shunt module, and is connected to the first liquid suction port of the flushing liquid cache device;

[0017] The inlet of the first one-way valve is connected to the inlet of the second one-way valve and the inlet of the first pressure regulating valve respectively; the outlet of the first pressure regulating valve is connected to the second liquid suction port of the flushing liquid buffer device as the second input port of the first diverter module; the outlet of the second one-way valve is connected to the first inlet of the first diverter device;

[0018] The second inlet of the first flow dividing device is connected to the outlet of the third diaphragm pump, the inlet of the third diaphragm pump is connected to one end of the second filter, and the other end of the second filter serves as the third input port of the first flow dividing module and is connected to the third liquid suction port of the flushing liquid cache device;

[0019] The third inlet of the first flow dividing device is connected to one end of the first capillary tube, and the other end of the first capillary tube serves as the fourth input port of the first flow dividing module and is connected to the fourth liquid suction port of the flushing liquid buffer device; the first outlet, the second outlet, and the third outlet of the first flow dividing device serve as the third output port, the fourth output port, and the fifth output port of the first flow dividing module respectively;

[0020] The second flow splitting module comprises: a second flow splitting device, a fourth diaphragm pump, a third filter, a second pressure regulating valve and a second capillary tube;

[0021] The first inlet of the second flow dividing device is connected to the inlet of the second pressure regulating valve, and the outlet of the second pressure regulating valve serves as the first input port of the second flow dividing module and is connected to the fifth liquid suction port of the flushing liquid buffer device;

[0022] The second inlet of the second flow dividing device is connected to one end of the second capillary tube, and the other end of the second capillary tube serves as the second input port of the second flow dividing module and is connected to the sixth liquid aspiration port of the flushing liquid buffer device;

[0023] The third inlet of the second flow dividing device is connected to the outlet of the fourth diaphragm pump, the inlet of the fourth diaphragm pump is connected to one end of the third filter, and the other end of the third filter serves as the third input port of the second flow dividing module and is connected to the seventh liquid suction port of the flushing liquid cache device;

[0024] The first outlet, the second outlet and the third outlet of the second flow dividing device serve as the first output port, the second output port and the third output port of the second flow dividing module respectively.

[0025] Optionally, in the above-mentioned fluid circuit control system of the coagulation analyzer, the first flow diversion module further comprises: a first pressure transmitter or a first water pressure sensor installed on the first flow diversion device;

[0026] The second flow diversion module further includes: a second pressure transmitter or a second water pressure sensor installed on the second flow diversion device.

[0027] Optionally, in the liquid control system of the above-mentioned coagulation analyzer, the second aspiration port, the fourth aspiration port, the fifth aspiration port and the sixth aspiration port are arranged at positions higher than the first aspiration port, the third aspiration port and the seventh aspiration port.

[0028] Optionally, in the fluid circuit control system of the above-mentioned coagulation analyzer, the puncture needle submodule includes: a second solenoid valve, a first plunger pump, a puncture needle and a puncture needle cleaning pool;

[0029] The inlet of the second solenoid valve serves as the first input port of the puncture needle submodule and is connected to the second output port of the first shunt module; the outlet of the second solenoid valve is connected to the inlet of the first plunger pump, and the outlet of the first plunger pump is connected to the puncture needle;

[0030] The puncture needle cleaning pool includes a first interface, a second interface and a third interface. The first interface of the puncture needle cleaning pool serves as the second input port of the puncture needle submodule and is connected to the first output port of the first shunt module; the second interface of the puncture needle cleaning pool and the third interface of the puncture needle cleaning pool serve as the first output port and the second output port of the puncture needle submodule, respectively.

[0031] The first sample needle submodule includes: a third solenoid valve, a second plunger pump, a first sample needle and a first sample needle cleaning pool;

[0032] The inlet of the third solenoid valve serves as the input port of the first sample needle submodule and is connected to the third output port of the first diversion module; the outlet of the third solenoid valve is connected to the inlet of the second plunger pump, and the outlet of the second plunger pump is connected to the first sample needle; the output interface of the first sample needle cleaning pool serves as the output port of the first sample needle submodule;

[0033] The first reagent needle submodule includes: a fourth solenoid valve, a third plunger pump, a first reagent needle and a first reagent needle cleaning tank;

[0034] The inlet of the fourth solenoid valve serves as the input port of the first reagent needle submodule and is connected to the fourth output port of the first diversion module; the outlet of the fourth solenoid valve is connected to the inlet of the third plunger pump, and the outlet of the third plunger pump is connected to the first reagent needle; the output interface of the first reagent needle cleaning tank serves as the output port of the first reagent needle submodule;

[0035] The first dual-reagent needle submodule includes: a fifth solenoid valve, a fourth plunger pump, a sixth solenoid valve, a second reagent needle, a third reagent needle and a first dual-reagent needle cleaning pool;

[0036] The inlet of the fifth solenoid valve serves as the input port of the first dual-reagent needle submodule and is connected to the fifth output port of the first diversion module; the outlet of the fifth solenoid valve is connected to the inlet of the fourth plunger pump, the outlet of the fourth plunger pump is connected to the common interface of the sixth solenoid valve, the normally open interface of the sixth solenoid valve is connected to the second reagent needle, and the normally closed interface of the sixth solenoid valve is connected to the third reagent needle; the output interface of the first dual-reagent needle cleaning tank serves as the output port of the first dual-reagent needle submodule.

[0037] Optionally, in the above-mentioned fluid circuit control system of the coagulation analyzer, the second sample needle submodule includes: a seventh solenoid valve, a fifth plunger pump, a second sample needle and a second sample needle cleaning tank;

[0038] The inlet of the seventh solenoid valve serves as the input port of the second sample needle submodule, and is connected to the first output port of the second diversion module; the outlet of the seventh solenoid valve is connected to the inlet of the fifth plunger pump, and the outlet of the fifth plunger pump is connected to the second sample needle; the output interface of the second sample needle cleaning pool serves as the output port of the second sample needle submodule;

[0039] The second reagent needle submodule includes: an eighth solenoid valve, a sixth plunger pump, a fourth reagent needle and a second reagent needle cleaning tank;

[0040] The inlet of the eighth solenoid valve serves as the input port of the second reagent needle submodule, and is connected to the second output port of the second diversion module; the outlet of the eighth solenoid valve is connected to the inlet of the sixth plunger pump, and the outlet of the sixth plunger pump is connected to the fourth reagent needle; the output interface of the second reagent needle cleaning tank serves as the output port of the second reagent needle submodule;

[0041] The second dual-reagent needle submodule includes: a ninth solenoid valve, a seventh plunger pump, a tenth solenoid valve, a fifth reagent needle, a sixth reagent needle and a second dual-reagent needle cleaning pool;

[0042] The inlet of the ninth solenoid valve serves as the input port of the second dual-reagent needle submodule and is connected to the third output port of the second diversion module; the outlet of the ninth solenoid valve is connected to the inlet of the seventh plunger pump, the outlet of the seventh plunger pump is connected to the common interface of the tenth solenoid valve, the normally open interface of the tenth solenoid valve is connected to the fifth reagent needle, and the normally closed interface of the tenth solenoid valve is connected to the sixth reagent needle; the output interface of the second dual-reagent needle cleaning tank serves as the output port of the second dual-reagent needle submodule.

[0043] Optionally, in the above-mentioned fluid circuit control system of the coagulation analyzer, the waste liquid collection and discharge module includes: a fifth diaphragm pump, a sixth diaphragm pump and a waste liquid buffer device;

[0044] The inlet of the fifth diaphragm pump serves as the first input port of the waste liquid collection and discharge module, connected to the first output port of the puncture needle submodule, and the outlet of the fifth diaphragm pump is connected to the first inlet of the waste liquid buffer device;

[0045] The second inlet of the waste liquid buffer device serves as the second input port of the waste liquid collection and discharge module, connected to the second output port of the puncture needle submodule, the output port of the first sample needle submodule, the output port of the first reagent needle submodule, the output port of the first dual reagent needle submodule, the output port of the second sample needle submodule, the output port of the second reagent needle submodule and the output port of the second dual reagent needle submodule;

[0046] The output port of the waste liquid buffer device is connected to the inlet port of the sixth diaphragm pump, and the outlet of the sixth diaphragm pump serves as the output port of the waste liquid collection and discharge module, and is connected to a waste liquid barrel or a wastewater discharge pipeline.

[0047] Optionally, in the above-mentioned fluid circuit control system of the coagulation analyzer, the sixth solenoid valve and the tenth solenoid valve are both three-way valves;

[0048] The first inlet of the waste liquid cache device and the second inlet of the waste liquid cache device are arranged at a position higher than the outlet of the waste liquid cache device.

[0049] The liquid circuit control system of the coagulation analyzer provided in the present application includes: a flushing liquid cache module, a first shunt module, a second shunt module, a first sample addition and cleaning module, a second sample addition and cleaning module and a waste liquid collection and discharge module; the flushing liquid cache module is connected to the waste liquid collection and discharge module through the first shunt module and the first sample addition and cleaning module in sequence, and is connected to the waste liquid collection and discharge module through the second shunt module and the second sample addition and cleaning module in sequence; wherein, the first sample addition and cleaning module includes: a first sample needle module, a first reagent needle module, a first double reagent needle module, and a puncture needle module; the second sample addition and cleaning module includes at least one of the following: a second double reagent needle module, a second reagent needle module, and a second sample needle module. Compared with the prior art, the liquid circuit control system of the blood analyzer provided in the present application has two sample needle modules, two reagent needle modules, and two double reagent needle modules in an ideal state, and the sample volume is doubled in the same processing time, which solves the problem that the existing fully automatic coagulation analyzer has only one test system, a small number of samples are processed per unit time, and cannot meet the growing processing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0051] Figure 1 A schematic diagram of the structure of a fluid circuit control system of a coagulation analyzer provided in an embodiment of the present application;

[0052] Figure 2 A schematic diagram of the specific structure of a fluid circuit control system of a coagulation analyzer provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] The embodiment of the present application provides a fluid circuit control system of a coagulation analyzer to solve the problem that the existing fully automatic coagulation analyzer has only one test system, processes a small number of samples per unit time, and cannot meet the growing processing demand.

[0055] See also Figure 1 The liquid circuit control system of the coagulation analyzer mainly includes: a flushing liquid cache module, a first shunt module, a second shunt module, a first sample addition and cleaning module, a second sample addition and cleaning module and a waste liquid collection and discharge module; the flushing liquid cache module is connected to the waste liquid collection and discharge module through the first shunt module and the first sample addition and cleaning module respectively, and is connected to the waste liquid collection and discharge module through the second shunt module and the second sample addition and cleaning module respectively; wherein, the first sample addition and cleaning module includes: a first sample needle module, a first reagent needle module, a first double reagent needle module, and a puncture needle module; the second sample addition and cleaning module includes at least one of the following: a second double reagent needle module, a second reagent needle module, and a second sample needle module.

[0056] In practical applications, the connections among the flushing liquid cache module, the first diversion module, the first sample addition and cleaning module, the waste liquid collection and discharge module, the second diversion module and the second sample addition and cleaning module can be pipeline connections, that is, the connections are achieved through corresponding pipelines.

[0057] In some embodiments, the main function of the flushing liquid cache module is to supply flushing liquid to the entire liquid circuit control system, and may include: a flushing liquid cache device, a first diaphragm pump, and a flushing liquid supply module. The flushing liquid supply module includes at least one flushing liquid supply submodule, and the flushing liquid supply submodule includes: a flushing liquid barrel, a filter, and a solenoid valve; the filter is built into the flushing liquid barrel and connected to the inlet of the first diaphragm pump through the solenoid valve; the outlet of the first diaphragm pump is connected to the injection port of the flushing liquid cache device.

[0058] For example, Figure 2As shown, the number of flushing liquid supply submodules can be 4, and the solenoid valves in each flushing liquid supply submodule are integrated into the same valve seat. 1, 2, 3, 4 in the figure represent flushing liquid barrels, 5, 6, 7, 8 represent filters, 9, 10, 11, 12 represent solenoid valves, and 13 represents a first diaphragm pump.

[0059] In practical applications, the liquid level of the flushing liquid barrel and the liquid level of the flushing liquid buffer device can be detected by a liquid level sensor; the solenoid valves in each flushing liquid supply submodule are integrated in the same valve seat and share one outlet.

[0060] It should be noted that the corresponding flushing liquid barrel can be controlled by controlling the corresponding solenoid valve to supply flushing liquid; when all four flushing liquid barrels have liquid, they can be used in a certain order, such as 1, 2, 3, and 4, and the solenoid valve corresponding to the flushing liquid in the barrel to be used is powered on. Generally, after the first flushing liquid barrel is sucked out, the second flushing liquid barrel is sucked out, and after the second flushing liquid barrel is sucked out, the third flushing liquid barrel is sucked out..., sucking in sequence can avoid the difficulty of manual handling when only one large barrel is set up. The four barrels are convenient for the prevention of flushing liquid and the unified packaging and management of consumables, and can also save the internal space of the coagulation analyzer.

[0061] Taking the flushing liquid barrel 1 as an example, after the coagulation analyzer is turned on, the liquid level switch will detect the liquid level in the flushing liquid buffer device. When the liquid level is lower than the lower detection point of the liquid level switch, the solenoid valve 9 and the first diaphragm pump 13 are automatically started in succession to draw the flushing liquid in the flushing liquid barrel 1 into the flushing buffer device 14. When the liquid level is detected to be higher than the upper detection point of the liquid level switch, the first diaphragm pump 13 and the solenoid valve 9 are closed in succession. During this process, the filter 5 can ensure that the tube is always immersed below the liquid level of the flushing liquid barrel 1 until there is no liquid in the flushing liquid barrel 1, and at the same time prevent impurities from entering the pipeline.

[0062] In some embodiments, the first flow splitter module and the second flow splitter module both provide a specific pressure flushing liquid for each sample needle during needle washing, and release the pressure when the sample system is on standby, so that the diaphragm pump and the solenoid valve are in a zero pressure state; at the same time, when the system fails, it can prevent the sudden rise of the pipeline water pressure and the fall of the pipe, causing the flushing liquid to overflow. The system failure can be that the diaphragm pump is not turned on or the solenoid valve fails.

[0063] Specifically, the first diversion module is mainly used to provide pressure cleaning fluid for the first sample needle module, the first reagent needle module, the first dual reagent needle module, and the puncture needle module, and the second diversion module is mainly used to provide pressure cleaning fluid for the second dual reagent needle module, the second reagent needle module, and the second sample needle module.

[0064] like Figure 2As shown, the flushing liquid cache device may include: a first liquid suction port, a second liquid suction port, a third liquid suction port, a fourth liquid suction port, a fifth liquid suction port, a sixth liquid suction port, and a seventh liquid suction port; the first diversion module may include: a first diversion device 20, a first filter 15, a second filter 16, a second diaphragm pump 17, a third diaphragm pump 18, a first one-way valve 23, a second one-way valve 22, a first pressure regulating valve 24, a first capillary 25 and a first solenoid valve 19.

[0065] Among them, the outlet of the first solenoid valve 19 serves as the first output port of the first shunt module, and the inlet of the first solenoid valve 19 is respectively connected to the outlet of the second diaphragm pump 17 and the outlet of the first one-way valve 23, and the connection point serves as the second output port of the first shunt module; the inlet of the second diaphragm pump 17 is connected to one end of the first filter 15, and the other end of the first filter 15 serves as the first input port of the first shunt module, and is connected to the first suction port of the flushing liquid cache device 14; the inlet of the first one-way valve 23 is respectively connected to the inlet of the second one-way valve 22 and the inlet of the first pressure regulating valve 24, and the outlet of the first pressure regulating valve 24 serves as the second input port of the first shunt module, and is connected to the second suction port of the flushing liquid cache device 14; the second one-way valve 22 The outlet of the first flow diverter device 20 is connected to the first inlet of the first flow diverter device 20; the second inlet of the first flow diverter device 20 is connected to the outlet of the third diaphragm pump 18, the inlet of the third diaphragm pump 18 is connected to one end of the second filter 16, the other end of the second filter 16 serves as the third input port of the first flow diverter module, and is connected to the third liquid suction port of the flushing liquid cache device 14; the third inlet of the first flow diverter device 20 is connected to one end of the first capillary 25, the other end of the first capillary 25 serves as the fourth input port of the first flow diverter module, and is connected to the fourth liquid suction port of the flushing liquid cache device 14; the first outlet, the second outlet, and the third outlet of the first flow diverter device 20 serve as the third output port, the fourth output port, and the fifth output port of the first flow diverter module, respectively;

[0066] The second diversion module may include: a second diversion device 28, a fourth diaphragm pump 27, a third filter 26, a second pressure regulating valve 30 and a second capillary 31; the first inlet of the second diversion device 28 is connected to the inlet of the second pressure regulating valve 30, and the outlet of the second pressure regulating valve 30 is used as the first input port of the second diversion module, and is connected to the fifth liquid suction port of the flushing liquid cache device 14; the second inlet of the second diversion device 28 is connected to one end of the second capillary 31, and the other end of the second capillary 31 is used as the second input port of the second diversion module, and is connected to the sixth liquid suction port of the flushing liquid cache device 14; the third inlet of the second diversion device 28 is connected to the outlet of the fourth diaphragm pump 27, and the inlet of the fourth diaphragm pump 27 is connected to one end of the third filter 26, and the other end of the third filter 26 is used as the third input port of the second diversion module, and is connected to the seventh liquid suction port of the flushing liquid cache device 14; the first outlet, the second outlet, and the third outlet of the second diversion device 28 are used as the first output port, the second output port, and the third output port of the second diversion module, respectively.

[0067] In actual applications, the first diversion module may also include: a first pressure transmitter (21 in the figure) or a first water pressure sensor installed on the first diversion device, for detecting the internal water pressure; the second diversion module may also include: a second pressure transmitter (29 in the figure) or a second water pressure sensor installed on the second diversion device, for detecting the internal water pressure.

[0068] It should be noted that when adjusting the pressure value of the first shunt module, the third diaphragm pump 18 is turned on to provide pressurized water to the first shunt device 20. By adjusting the first pressure regulating valve 24, the pressure in the first shunt device 20 is maintained at a specific value, and the first pressure transmitter 21 can detect the pressure value. The third diaphragm pump 18 is turned off, and the first shunt device 20 is depressurized through the first capillary 25, so that its internal pressure value drops to zero. When the first sample needle submodule, the first reagent needle submodule, and the first double reagent needle submodule are working, the third diaphragm pump 18 is automatically turned on to provide specific pressure flushing liquid to each submodule to complete the sample needle cleaning, and the second filter 16 can prevent foreign particles from entering the corresponding cleaning circuit; the second diaphragm pump 17 is used to provide pressure flushing liquid for the cleaning of the inner and outer walls of the puncture needle 34 in the puncture needle submodule, and the size of its pressure value is also adjusted by the first pressure regulating valve 24. The first solenoid valve 19 is used to control the on-off of the cleaning circuit of the outer wall of the puncture needle 34. When the outer wall of the puncture needle 34 is cleaned, the first solenoid valve 19 and the second diaphragm pump 17 will be opened successively to provide pressure flushing liquid for it, and the first filter 15 can prevent impurities from entering the cleaning circuit.

[0069] The pressure value of the second shunt module is adjusted by the second pressure regulating valve 30 and detected by the second pressure transmitter 29; when the second dual-reagent needle submodule, the second reagent needle submodule, and the second sample needle submodule are working, the fourth diaphragm pump 27 is automatically turned on to provide specific pressure flushing liquid to each submodule to complete the sample needle cleaning, and the third filter 26 can prevent impurity particles from entering the corresponding cleaning circuit. When each submodule stops working, the fourth diaphragm pump 27 is automatically turned off, and the pressure in the second shunt device 28 is reduced to zero through the second capillary 31. The first pressure regulating valve 24 and the second pressure regulating valve 30 can ensure that the pipeline pressure does not exceed the set value, and even in the event of a system failure, there will be no sudden increase in pressure in the pipe, and the pipe will not fall off and the flushing liquid will overflow.

[0070] It should also be noted that the second suction port, the fourth suction port, the fifth suction port and the sixth suction port of the flushing liquid buffer device 14 are set at a position higher than the first suction port, the third suction port and the seventh suction port. Specifically, the second suction port of the flushing liquid buffer device 14 connected to the first pressure regulating valve 24 is set at a position higher than the liquid level of the flushing liquid buffer device at the top or side of the flushing liquid buffer device 14; the fourth suction port of the flushing liquid buffer device 14 connected to the first capillary 25 is set at a position higher than the liquid level of the flushing liquid buffer device at the top or side of the flushing liquid buffer device 14; the fifth suction port of the flushing liquid buffer device 14 connected to the second pressure regulating valve 30 is set at a position higher than the liquid level of the flushing liquid buffer device at the top or side of the flushing liquid buffer device 14; the sixth suction port of the flushing liquid buffer device 14 connected to the second capillary 31 is set at a position higher than the liquid level of the flushing liquid buffer device at the top or side of the flushing liquid buffer device 14.

[0071] In some embodiments, the main function of the puncture needle submodule is to complete sample puncture and cleaning, such as Figure 2 As shown, the puncture needle submodule may include: a second solenoid valve 32, a first plunger pump 33, a puncture needle 34 and a puncture needle cleaning pool 57;

[0072] Among them, the inlet of the second solenoid valve 32 serves as the first input port of the puncture needle submodule, and is connected to the second output port of the first shunt module; the outlet of the second solenoid valve 32 is connected to the inlet of the first plunger pump 33, and the outlet of the first plunger pump 33 is connected to the puncture needle 34; the puncture needle cleaning pool 57 includes a first interface, a second interface and a third interface, and the first interface of the puncture needle cleaning pool 57 serves as the second input port of the puncture needle submodule, and is connected to the first output port of the first shunt module; the second interface of the puncture needle cleaning pool 57 and the third interface of the puncture needle cleaning pool 57 serve as the first output port and the second output port of the puncture needle submodule respectively.

[0073] In actual application, when the puncture needle submodule is working, the puncture needle 24 moves to the corresponding working position, and the puncture needle 34 passes through the rubber stopper of the blood collection tube and is immersed under the sample liquid surface. At this time, the second solenoid valve 32 is in a closed state, and the first plunger pump 33 moves according to a given degree, so that the puncture needle 34 inhales a certain amount of sample; when the puncture needle 34 moves to the sample spitting position, the first plunger pump 33 moves in the opposite direction according to a given degree to spit out the sample; after the puncture needle 34 completes the sample filling, the puncture needle moves to the cleaning position of the puncture needle cleaning pool 57, the second solenoid valve 32 automatically opens, and the pressure flushing fluid enters the puncture needle 34 through the pipeline to clean the inner wall of the puncture needle 34.

[0074] In some embodiments, the primary function of the first sample needle submodule is to complete sample filling and cleaning, such as Figure 2 As shown, the first sample needle submodule may include: a third solenoid valve 35, a second plunger pump 36, a first sample needle 37 and a first sample needle cleaning pool 58;

[0075] Among them, the inlet of the third solenoid valve 35 serves as the input port of the first sample needle sub-module and is connected to the third output port of the first diversion module; the outlet of the third solenoid valve 35 is connected to the inlet of the second plunger pump 36, and the outlet of the second plunger pump 36 is connected to the first sample needle 37; the output interface of the first sample needle cleaning pool 58 serves as the output port of the first sample needle sub-module.

[0076] In actual applications, when the first sample needle submodule is filled with sample, the third solenoid valve 35 is in a closed state. After the second plunger pump 36 completes the suction and exhalation action according to a given program, the first sample needle 37 moves to the cleaning position of the first sample needle cleaning pool 58, and the third solenoid valve 35 opens to complete the cleaning of the inner and outer walls of the first sample needle 37.

[0077] In some embodiments, the main function of the first reagent needle module is to complete reagent filling and cleaning, such as Figure 2 As shown, the first reagent needle submodule may include: a fourth solenoid valve 41, a third plunger pump 42, a first reagent needle 43 and a first reagent needle cleaning tank 60;

[0078] Among them, the inlet of the fourth solenoid valve 41 serves as the input port of the first reagent needle sub-module and is connected to the fourth output port of the first diversion module; the outlet of the fourth solenoid valve 41 is connected to the inlet of the third plunger pump 42, and the outlet of the third plunger pump 42 is connected to the first reagent needle 43; the output interface of the first reagent needle cleaning tank 60 serves as the output port of the first reagent needle sub-module.

[0079] In actual application, when the first reagent needle module is filled with reagent, the fourth solenoid valve 41 is in a closed state. After the third plunger pump 42 completes the suction and discharge action according to a given program, the first reagent needle 43 moves to the cleaning position of the first reagent needle cleaning pool 60, and the fourth solenoid valve 41 opens to complete the cleaning of the inner and outer walls of the first reagent needle 43.

[0080] In some embodiments, the main function of the first dual reagent needle module is also to complete reagent filling and cleaning, such as Figure 2 As shown, the first dual reagent needle submodule may include: a fifth solenoid valve 47, a fourth plunger pump 48, a sixth solenoid valve 49, a second reagent needle 50, a third reagent needle 51 and a first dual reagent needle cleaning pool 62;

[0081] Among them, the inlet of the fifth solenoid valve 47 serves as the input port of the first dual-reagent needle sub-module and is connected to the fifth output port of the first diversion module; the outlet of the fifth solenoid valve 47 is connected to the inlet of the fourth plunger pump 48, the outlet of the fourth plunger pump 48 is connected to the common interface of the sixth solenoid valve 49, the normally open interface of the sixth solenoid valve 49 is connected to the second reagent needle 50, and the normally closed interface of the sixth solenoid valve 49 is connected to the third reagent needle 51; the output interface of the first dual-reagent needle cleaning tank 62 serves as the output port of the first dual-reagent needle sub-module.

[0082] In actual application, the working process of the first dual reagent needle submodule is substantially the same as that of the first reagent needle submodule, except that the switching between the second reagent needle 50 and the third reagent needle 51 is controlled by the sixth solenoid valve 49 . Specifically, the second reagent needle 50 is connected to the normally open interface of the sixth solenoid valve 49, and the third reagent needle 51 is connected to the normally closed interface of the sixth solenoid valve 49; when the second reagent needle 50 is filled with reagent, the fifth solenoid valve 47 is in a closed state, the sixth solenoid valve 49 is not powered on, and after the fourth plunger pump 48 completes the suction and exhalation action according to a given program, the second reagent needle 50 moves to the cleaning position of the first double reagent needle cleaning tank 62, and the fifth solenoid valve 47 is opened to complete the inner and outer wall cleaning of the second reagent needle 50; when the third reagent needle 51 is filled with reagent, the fifth solenoid valve 47 is in a closed state, the sixth solenoid valve 49 is powered on, and after the fourth plunger pump 48 completes the suction and exhalation action according to a given program, the third reagent needle 51 moves to the cleaning position of the first double reagent needle cleaning tank 62, and the fifth solenoid valve 47 is opened. At this time, the sixth solenoid valve 49 is still in a powered-on state, and the pressure flushing liquid passes through the fifth solenoid valve 47, the fourth plunger pump 48, and the third reagent needle 51 in turn to complete the inner and outer wall cleaning of the third reagent needle 51.

[0083] In some embodiments, the second sample needle submodule mainly functions to complete sample filling and cleaning, such as Figure 2 As shown, the second sample needle submodule may include: a seventh solenoid valve 38, a fifth plunger pump 39, a second sample needle 40 and a second sample needle cleaning pool 59;

[0084] Among them, the inlet of the seventh solenoid valve 38 serves as the input port of the second sample needle sub-module and is connected to the first output port of the second diversion module; the outlet of the seventh solenoid valve 38 is connected to the inlet of the fifth plunger pump 39, and the outlet of the fifth plunger pump 39 is connected to the second sample needle 40; the output interface of the second sample needle cleaning pool 59 serves as the output port of the second sample needle sub-module.

[0085] In actual applications, when the second sample needle submodule is filled with sample, the seventh solenoid valve 38 is in a closed state. After the fifth plunger pump 39 completes the suction and exhalation action according to a given program, the second sample needle 40 moves to the cleaning position of the second sample needle cleaning pool 59, and the seventh solenoid valve 38 opens to complete the cleaning of the inner and outer walls of the second sample needle 40.

[0086] In some embodiments, the second reagent needle module mainly functions to complete reagent filling and cleaning, such as Figure 2 As shown, the second reagent needle submodule may include: an eighth solenoid valve 44, a sixth plunger pump 45, a fourth reagent needle 46 and a second reagent needle cleaning tank 61;

[0087] Among them, the inlet of the eighth solenoid valve 44 serves as the input port of the second reagent needle sub-module and is connected to the second output port of the second diversion module; the outlet of the eighth solenoid valve 44 is connected to the inlet of the sixth plunger pump 45, and the outlet of the sixth plunger pump 45 is connected to the fourth reagent needle 46; the output interface of the second reagent needle cleaning tank 61 serves as the output port of the second reagent needle sub-module.

[0088] In actual application, when the second reagent needle module is filled with reagent, the eighth solenoid valve 44 is in a closed state. After the sixth plunger pump 45 completes the suction and exhalation action according to a given program, the fourth reagent needle 46 moves to the cleaning position of the second reagent needle cleaning pool 61, and the eighth solenoid valve 44 opens to complete the cleaning of the inner and outer walls of the fourth reagent needle 46.

[0089] In some embodiments, the second dual reagent needle module also has the main function of completing reagent filling and cleaning, such as Figure 2 As shown, the second dual-reagent needle submodule may include: a ninth solenoid valve 52, a seventh plunger pump 53, a tenth solenoid valve 54, a fifth reagent needle 55, a sixth reagent needle 56 and a second dual-reagent needle cleaning pool 63;

[0090] Among them, the inlet of the ninth solenoid valve 52 serves as the input port of the second dual-reagent needle sub-module and is connected to the third output port of the second diversion module; the outlet of the ninth solenoid valve 52 is connected to the inlet of the seventh plunger pump 53, the outlet of the seventh plunger pump 53 is connected to the common interface of the tenth solenoid valve 54, the normally open interface of the tenth solenoid valve 54 is connected to the fifth reagent needle 55, and the normally closed interface of the tenth solenoid valve 54 is connected to the sixth reagent needle 56; the output interface of the second dual-reagent needle cleaning tank 63 serves as the output port of the second dual-reagent needle sub-module.

[0091] In actual applications, the working principle of the second dual-reagent needle submodule is the same as that of the first dual-reagent submodule. Since the fifth reagent needle 55 is connected to the normally open interface of the tenth solenoid valve 54, and the sixth reagent needle 56 is connected to the normally closed interface of the tenth solenoid valve 54; when the fifth reagent needle 55 is filled with reagent, the ninth solenoid valve 52 is in a closed state, the tenth solenoid valve 54 is not powered on, and after the seventh plunger pump 53 completes the suction and exhalation action according to a given program, the fifth reagent needle 55 moves to the cleaning position of the second double reagent needle cleaning tank 63, and the ninth solenoid valve 52 is opened to complete the inner and outer wall cleaning of the fifth reagent needle 55; when the sixth reagent needle 56 is filled with reagent, the ninth solenoid valve 52 is in a closed state, the tenth solenoid valve 54 is powered on, and after the seventh plunger pump 53 completes the suction and exhalation action according to a given program, the sixth reagent needle 56 moves to the cleaning position of the second double reagent needle cleaning tank 63, and the ninth solenoid valve 52 is opened. At this time, the tenth solenoid valve 54 is still in a powered-on state, and the pressure flushing liquid passes through the ninth solenoid valve 52, the seventh plunger pump 53, and the sixth reagent needle 56 in turn to complete the inner and outer wall cleaning of the sixth reagent needle 56.

[0092] It should be noted that the sixth solenoid valve in the first dual-reagent needle module and the tenth solenoid valve in the second dual-reagent needle module can both be three-way valves. Of course, this is not limited to this and can be determined depending on the specific application environment and user needs, all within the protection scope of this application.

[0093] In some embodiments, the waste liquid collection and discharge module is mainly used to collect the waste liquid generated by the cleaning tanks in each submodule, such as Figure 2 As shown, the waste liquid collection and discharge module may include: a fifth diaphragm pump 64, a sixth diaphragm pump 68 and a waste liquid buffer device 65;

[0094] Among them, the inlet of the fifth diaphragm pump 64 serves as the first input port of the waste liquid collection and discharge module, connected to the first output port of the puncture needle submodule, and the outlet of the fifth diaphragm pump 64 is connected to the first inlet of the waste liquid buffer device 65; the second inlet of the waste liquid buffer device 65 serves as the second input port of the waste liquid collection and discharge module, connected to the second output port of the puncture needle submodule, the output port of the first sample needle submodule, the output port of the first reagent needle submodule, the output port of the first double reagent needle submodule, the output port of the second sample needle submodule, the output port of the second reagent needle submodule and the output port of the second double reagent needle submodule; the output port of the waste liquid buffer device 65 is connected to the inlet of the sixth diaphragm pump 66, and the outlet of the sixth diaphragm pump 66 serves as the output port of the waste liquid collection and discharge module, connected to a waste liquid barrel or a wastewater discharge pipe.

[0095] In actual applications, the cleaning waste liquid of the first sample needle submodule, the first reagent needle submodule, the first double reagent needle submodule, the second sample needle submodule, the second reagent needle submodule and the second double reagent needle submodule is collected in the waste liquid buffer device 65 by gravity; the cleaning waste liquid of the puncture needle submodule is different. The cleaning waste liquid generated by cleaning the inner wall of the puncture needle 34 in the puncture needle cleaning pool 57 flows into the waste liquid buffer device 65 by gravity, and the waste liquid generated by cleaning the outer wall of the puncture needle 34 is sucked into the waste liquid buffer device 65 by the fifth diaphragm pump 64. The liquid level switch will detect the liquid level in the waste liquid buffer device 65. When the liquid level reaches the detection point of the liquid level switch, the sixth diaphragm pump 68 automatically starts to draw the waste oil in the waste liquid buffer device 65 into the waste liquid barrel 67 or the waste liquid discharge pipeline.

[0096] It should be noted that, combined with Figure 2 The first inlet of the waste liquid cache device and the second inlet of the waste liquid cache device are arranged at a position higher than the outlet of the waste liquid cache device.

[0097] Based on the above principles, the liquid circuit control system of the coagulation analyzer provided in this embodiment includes: a flushing liquid cache module, a first shunt module, a second shunt module, a first sample addition and cleaning module, a second sample addition and cleaning module and a waste liquid collection and discharge module; the flushing liquid cache module is connected to the waste liquid collection and discharge module through the first shunt module and the first sample addition and cleaning module in sequence, and is connected to the waste liquid collection and discharge module through the second shunt module and the second sample addition and cleaning module in sequence; wherein, the first sample addition and cleaning module includes: a first sample needle module, a first reagent needle module, a first double reagent needle module, and a puncture needle module; the second sample addition and cleaning module includes at least one of the following: a second double reagent needle module, a second reagent needle module, and a second sample needle module. Compared with the prior art, the liquid circuit control system of the blood analyzer provided in this application ideally has two sample needle modules, two reagent needle modules, and two double reagent needle modules. The sample volume is doubled in the same processing time, which solves the problem that the existing fully automatic coagulation analyzer has only one test system, a small number of samples processed per unit time, and cannot meet the growing processing needs.

[0098] Furthermore, by setting up 4 flushing liquid supply sub-modules, the four barrels of flushing liquid can be automatically switched to supply liquid to the system in sequence through the four-way valve group, reducing the number and time of manual barrel changes. At the same time, it can effectively prevent the flushing liquid buffer device from overflowing due to siphoning, making the entire instrument safer, more reliable and convenient.

[0099] In addition, the liquid control system of the coagulation analyzer can also make the cleaning water pressure of all sampling needles adjustable, controllable and detectable through the first shunt module and the second shunt module, thereby ensuring the cleaning intensity of the sampling needles and preventing cross contamination; at the same time, it can effectively avoid the problem of tube detachment caused by sudden increase in pipeline water pressure due to system failure (such as accidental opening of the diaphragm pump or solenoid valve failure).

[0100] It is worth noting that the fluid circuit control system of the coagulation analyzer provided in the present application can meet the application requirements of a fully automatic, faster and highly reliable coagulation analyzer.

[0101] The features recorded in the various embodiments in this specification can be replaced or combined with each other, and the same and similar parts between the various embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0102] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0103] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0104] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A fluid control system for a coagulation analyzer, characterized in that: include: A flushing liquid cache module, a first flow diversion module, a second flow diversion module, a first sample addition and cleaning module, a second sample addition and cleaning module, and a waste liquid collection and discharge module; The flushing liquid buffer module is connected to the waste liquid collecting and discharging module through the first flow dividing module and the first sample adding and cleaning module in sequence, and is connected to the waste liquid collecting and discharging module through the second flow dividing module and the second sample adding and cleaning module in sequence; Among them, the first sample loading and cleaning module includes: a first sample needle module, a first reagent needle module, a first dual reagent needle module, and a puncture needle module; the second sample loading and cleaning module includes at least one of the following: a second dual reagent needle module, a second reagent needle module, and a second sample needle module.

2. The fluid circuit control system of the coagulation analyzer according to claim 1, characterized in that: The flushing liquid cache module comprises: a flushing liquid cache device, a first diaphragm pump and a flushing liquid supply module; The flushing liquid supply module includes at least one flushing liquid supply submodule, and the flushing liquid supply submodule includes: a flushing liquid barrel, a filter and a solenoid valve; the filter is built into the flushing liquid barrel and connected to the inlet of the first diaphragm pump through the solenoid valve; The outlet of the first diaphragm pump is connected to the injection port of the flushing liquid buffer device.

3. The fluid circuit control system of the coagulation analyzer according to claim 2, characterized in that: The number of the flushing liquid supply submodules is 4, and the solenoid valves in the flushing liquid supply submodules are integrated into the same valve seat.

4. The fluid circuit control system of the coagulation analyzer according to claim 2, characterized in that: The flushing liquid buffer device comprises: a first liquid suction port, a second liquid suction port, a third liquid suction port, a fourth liquid suction port, a fifth liquid suction port, a sixth liquid suction port, and a seventh liquid suction port; The first flow dividing module comprises: a first flow dividing device, a first filter, a second filter, a second diaphragm pump, a third diaphragm pump, a first one-way valve, a second one-way valve, a first pressure regulating valve, a first capillary tube and a first solenoid valve; The outlet of the first solenoid valve serves as the first output port of the first shunt module, and the inlet of the first solenoid valve is connected to the outlet of the second diaphragm pump and the outlet of the first one-way valve respectively, and the connection points serve as the second output port of the first shunt module; the inlet of the second diaphragm pump is connected to one end of the first filter, and the other end of the first filter serves as the first input port of the first shunt module, and is connected to the first liquid suction port of the flushing liquid cache device; The inlet of the first one-way valve is connected to the inlet of the second one-way valve and the inlet of the first pressure regulating valve respectively; the outlet of the first pressure regulating valve is connected to the second liquid suction port of the flushing liquid buffer device as the second input port of the first diverter module; the outlet of the second one-way valve is connected to the first inlet of the first diverter device; The second inlet of the first flow dividing device is connected to the outlet of the third diaphragm pump, the inlet of the third diaphragm pump is connected to one end of the second filter, and the other end of the second filter serves as the third input port of the first flow dividing module and is connected to the third liquid suction port of the flushing liquid cache device; The third inlet of the first flow dividing device is connected to one end of the first capillary tube, and the other end of the first capillary tube serves as the fourth input port of the first flow dividing module and is connected to the fourth liquid suction port of the flushing liquid buffer device; the first outlet, the second outlet, and the third outlet of the first flow dividing device serve as the third output port, the fourth output port, and the fifth output port of the first flow dividing module respectively; The second flow splitting module comprises: a second flow splitting device, a fourth diaphragm pump, a third filter, a second pressure regulating valve and a second capillary tube; The first inlet of the second flow dividing device is connected to the inlet of the second pressure regulating valve, and the outlet of the second pressure regulating valve serves as the first input port of the second flow dividing module and is connected to the fifth liquid suction port of the flushing liquid buffer device; The second inlet of the second flow dividing device is connected to one end of the second capillary tube, and the other end of the second capillary tube serves as the second input port of the second flow dividing module and is connected to the sixth liquid aspiration port of the flushing liquid buffer device; The third inlet of the second flow dividing device is connected to the outlet of the fourth diaphragm pump, the inlet of the fourth diaphragm pump is connected to one end of the third filter, and the other end of the third filter serves as the third input port of the second flow dividing module and is connected to the seventh liquid suction port of the flushing liquid cache device; The first outlet, the second outlet and the third outlet of the second flow dividing device serve as the first output port, the second output port and the third output port of the second flow dividing module respectively.

5. The fluid circuit control system of the coagulation analyzer according to claim 4, characterized in that: The first flow diversion module further includes: a first pressure transmitter or a first water pressure sensor installed on the first flow diversion device; The second flow diversion module further includes: a second pressure transmitter or a second water pressure sensor installed on the second flow diversion device.

6. The fluid circuit control system of the coagulation analyzer according to claim 4, characterized in that: The second liquid suction port, the fourth liquid suction port, the fifth liquid suction port and the sixth liquid suction port are arranged at positions higher than the first liquid suction port, the third liquid suction port and the seventh liquid suction port.

7. The fluid circuit control system of the coagulation analyzer according to claim 4, characterized in that: The puncture needle submodule includes: a second solenoid valve, a first plunger pump, a puncture needle and a puncture needle cleaning pool; The inlet of the second solenoid valve serves as the first input port of the puncture needle submodule and is connected to the second output port of the first shunt module; the outlet of the second solenoid valve is connected to the inlet of the first plunger pump, and the outlet of the first plunger pump is connected to the puncture needle; The puncture needle cleaning pool includes a first interface, a second interface and a third interface. The first interface of the puncture needle cleaning pool serves as the second input port of the puncture needle submodule and is connected to the first output port of the first shunt module; the second interface of the puncture needle cleaning pool and the third interface of the puncture needle cleaning pool serve as the first output port and the second output port of the puncture needle submodule, respectively. The first sample needle submodule includes: a third solenoid valve, a second plunger pump, a first sample needle and a first sample needle cleaning pool; The inlet of the third solenoid valve serves as the input port of the first sample needle submodule and is connected to the third output port of the first diversion module; the outlet of the third solenoid valve is connected to the inlet of the second plunger pump, and the outlet of the second plunger pump is connected to the first sample needle; the output interface of the first sample needle cleaning pool serves as the output port of the first sample needle submodule; The first reagent needle submodule includes: a fourth solenoid valve, a third plunger pump, a first reagent needle and a first reagent needle cleaning tank; The inlet of the fourth solenoid valve serves as the input port of the first reagent needle submodule and is connected to the fourth output port of the first diversion module; the outlet of the fourth solenoid valve is connected to the inlet of the third plunger pump, and the outlet of the third plunger pump is connected to the first reagent needle; the output interface of the first reagent needle cleaning tank serves as the output port of the first reagent needle submodule; The first dual-reagent needle submodule includes: a fifth solenoid valve, a fourth plunger pump, a sixth solenoid valve, a second reagent needle, a third reagent needle and a first dual-reagent needle cleaning pool; The inlet of the fifth solenoid valve serves as the input port of the first dual-reagent needle submodule and is connected to the fifth output port of the first diversion module; the outlet of the fifth solenoid valve is connected to the inlet of the fourth plunger pump, the outlet of the fourth plunger pump is connected to the common interface of the sixth solenoid valve, the normally open interface of the sixth solenoid valve is connected to the second reagent needle, and the normally closed interface of the sixth solenoid valve is connected to the third reagent needle; the output interface of the first dual-reagent needle cleaning tank serves as the output port of the first dual-reagent needle submodule.

8. The fluid circuit control system of the coagulation analyzer according to claim 7, characterized in that: The second sample needle submodule includes: a seventh solenoid valve, a fifth plunger pump, a second sample needle and a second sample needle cleaning pool; The inlet of the seventh solenoid valve serves as the input port of the second sample needle submodule, and is connected to the first output port of the second diversion module; the outlet of the seventh solenoid valve is connected to the inlet of the fifth plunger pump, and the outlet of the fifth plunger pump is connected to the second sample needle; the output interface of the second sample needle cleaning pool serves as the output port of the second sample needle submodule; The second reagent needle submodule includes: an eighth solenoid valve, a sixth plunger pump, a fourth reagent needle and a second reagent needle cleaning tank; The inlet of the eighth solenoid valve serves as the input port of the second reagent needle submodule, and is connected to the second output port of the second diversion module; the outlet of the eighth solenoid valve is connected to the inlet of the sixth plunger pump, and the outlet of the sixth plunger pump is connected to the fourth reagent needle; the output interface of the second reagent needle cleaning tank serves as the output port of the second reagent needle submodule; The second dual-reagent needle submodule includes: a ninth solenoid valve, a seventh plunger pump, a tenth solenoid valve, a fifth reagent needle, a sixth reagent needle and a second dual-reagent needle cleaning pool; The inlet of the ninth solenoid valve serves as the input port of the second dual-reagent needle submodule and is connected to the third output port of the second diversion module; the outlet of the ninth solenoid valve is connected to the inlet of the seventh plunger pump, the outlet of the seventh plunger pump is connected to the common interface of the tenth solenoid valve, the normally open interface of the tenth solenoid valve is connected to the fifth reagent needle, and the normally closed interface of the tenth solenoid valve is connected to the sixth reagent needle; the output interface of the second dual-reagent needle cleaning tank serves as the output port of the second dual-reagent needle submodule.

9. The fluid circuit control system of the coagulation analyzer according to claim 8, characterized in that: The waste liquid collection and discharge module comprises: a fifth diaphragm pump, a sixth diaphragm pump and a waste liquid buffer device; The inlet of the fifth diaphragm pump serves as the first input port of the waste liquid collection and discharge module, connected to the first output port of the puncture needle submodule, and the outlet of the fifth diaphragm pump is connected to the first inlet of the waste liquid buffer device; The second inlet of the waste liquid buffer device serves as the second input port of the waste liquid collection and discharge module, connected to the second output port of the puncture needle submodule, the output port of the first sample needle submodule, the output port of the first reagent needle submodule, the output port of the first dual reagent needle submodule, the output port of the second sample needle submodule, the output port of the second reagent needle submodule and the output port of the second dual reagent needle submodule; The output port of the waste liquid buffer device is connected to the inlet port of the sixth diaphragm pump, and the outlet of the sixth diaphragm pump serves as the output port of the waste liquid collection and discharge module, and is connected to a waste liquid barrel or a wastewater discharge pipeline.

10. The fluid circuit control system of the coagulation analyzer according to claim 9, characterized in that: The sixth solenoid valve and the tenth solenoid valve are both three-way valves; The first inlet of the waste liquid cache device and the second inlet of the waste liquid cache device are arranged at a position higher than the outlet of the waste liquid cache device.

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