Needle cleaning system of analyzer
By employing a single booster pump and a multi-way valve design in the analyzer, efficient needle cleaning was achieved, solving the problems of complexity and high cost of existing systems, and improving cleaning effect and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-04-07
AI Technical Summary
Existing high-speed analyzer needle cleaning systems increase system costs and maintenance difficulty due to the need to clean multiple sampling needles, and existing solutions require multiple pumps and complex piping systems.
It adopts a single booster pump and multi-way valve design, which controls the flow of cleaning fluid to ensure that the cleaning fluid is accurately delivered to each needle, reducing unnecessary cleaning operations and simplifying the system structure.
It improves cleaning effectiveness and system flexibility, reduces equipment complexity and cost, enhances equipment reliability and work efficiency, and reduces the risk of cross-contamination.
Smart Images
Figure CN224087417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomedical technology, and in particular to a needle cleaning system for an analyzer. Background Technology
[0002] In modern biological sample analysis, sampling needles are essential components for aspirating test samples or chemical reagents. To ensure the accuracy and reliability of test results, sampling needles must be thoroughly cleaned after each use to reduce cross-contamination between samples. Therefore, developing efficient sampling needle cleaning systems has become an important research direction in this field. Currently, commercially available sampling needle cleaning technologies mainly employ a combination of internal and external cleaning methods. Internal cleaning typically involves using a pump or syringe to push cleaning fluid and flush the inner wall with a high-pressure water jet to ensure the removal of residues.
[0003] However, in the needle cleaning system of high-speed analyzers, due to the need to clean multiple sampling needles, existing cleaning solutions often require multiple pumps and complex piping systems, leading to increased system costs and greater maintenance difficulty.
[0004] The above information disclosed in the background art of this utility model is only used to understand the background of the concept of this utility model, and may include information that does not constitute prior art. Utility Model Content
[0005] Therefore, it is necessary to provide a needle cleaning system for an analyzer to address the above problems.
[0006] This application provides a needle cleaning system for an analyzer, comprising:
[0007] A liquid supply assembly for supplying cleaning fluid;
[0008] A booster pump, which is connected to the liquid supply assembly;
[0009] A multi-way valve having an inlet and multiple outlets, the inlet being connected to a liquid supply assembly via a booster pump, the booster pump pressurizing and delivering the cleaning fluid to the multi-way valve; and
[0010] Multiple diversion components, each of the diversion components including a needle and a diversion block, each of the diversion blocks having an inlet and a diversion port, the inlet being able to communicate with the liquid outlet and corresponding one-to-one, the needle being connected to the diversion port;
[0011] When cleaning the inner wall of the needle of one of the diversion components, one of the outlet ends of the multi-way valve is opened and connected to the inlet of the diversion block corresponding to the diversion component, while the other outlet ends of the multi-way valve are closed.
[0012] The needle cleaning system of the aforementioned analyzer achieves at least the following beneficial effects: By pressurizing the cleaning solution and delivering it to the multi-way valve via a booster pump, the flow rate and cleaning effect of the cleaning solution are effectively increased, ensuring thorough cleaning of the sampling needle's inner wall and reducing the risk of cross-contamination. The multi-way valve design allows for flexible selection of the diversion components to be cleaned as needed, avoiding unnecessary cleaning operations and improving the system's flexibility and controllability. By controlling the opening and closing of the multi-way valve, precise control of the cleaning actions of different diversion components can be achieved, ensuring the synchronization and effectiveness of the cleaning process and avoiding flow fluctuations during cleaning. The multi-way valve design connects multiple outlets to the diversion components, eliminating the need for multiple pumps, simplifying the system structure, and reducing equipment complexity. The use of a single booster pump and multi-way valve reduces the number of required equipment, thereby lowering material and production costs and improving economic efficiency. The streamlined system structure and reduced number of components also make equipment maintenance easier, reducing the failure rate and improving equipment reliability.
[0013] In some embodiments, the number of needles corresponds one-to-one with the number of shunt ports. By pairing each needle with a corresponding shunt port, it is ensured that the cleaning solution is accurately delivered to each needle, avoiding possible confusion or misoperation during the cleaning process, and improving the targeting and effectiveness of the cleaning. This one-to-one correspondence design makes the cleaning process more efficient. When a specific needle needs to be cleaned, the system can quickly switch to the corresponding shunt port, reducing cleaning time and improving the analyzer's working efficiency.
[0014] In some embodiments, the needle includes a reagent needle and a sample needle.
[0015] In some embodiments, the reagent needle includes a first reagent needle and a second reagent needle, and the diversion port includes a first diversion port, a second diversion port, and a third diversion port. The first reagent needle is connected to the first diversion port, the second reagent needle is connected to the second diversion port, and the sample needle is connected to the third diversion port. When cleaning the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a diversion assembly, one outlet end of the multi-way valve is opened and connected to the inlet of the diversion block corresponding to the diversion assembly, while the remaining outlet ends of the multi-way valve are closed.
[0016] In some embodiments, each of the diversion components further includes a first valve body, a second valve body, and a third valve body. The first diversion port is connected to the first reagent needle via the first valve body, the second diversion port is connected to the second reagent needle via the second valve body, and the third diversion port is connected to the sample needle via the third valve body. When cleaning the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a diversion component, the first, second, and third valve bodies are all closed within the diversion component to be cleaned until the outlet pressure of the booster pump meets a predetermined threshold before being opened. During the cleaning process, one outlet end of the multi-port valve opens and connects to the inlet of the corresponding diversion block of the diversion component. This design ensures that the cleaning fluid can effectively flow into the desired needle inner wall to achieve the cleaning purpose. During the cleaning process, the remaining outlet ends remain closed. This measure prevents the cleaning fluid from flowing to needles that do not need cleaning, avoiding waste of cleaning fluid and the risk of cross-contamination. Because the cleaning fluid flows only to the needles that need cleaning, cleaning time is reduced, overall cleaning efficiency is improved, and the equipment can quickly return to normal operation. Before cleaning, the first, second, and third valves in the diversion assembly are all closed. This operation effectively prevents the cleaning fluid from flowing into the needles before reaching the appropriate pressure, thus avoiding potential uneven cleaning or fluid overflow. The booster pump is started, gradually increasing its outlet pressure. The booster pump's outlet pressure continuously increases until it reaches a predetermined threshold. Once the booster pump's outlet pressure meets the predetermined threshold, the first, second, and third valves are opened sequentially. This timing is crucial; only when the pressure reaches the predetermined threshold can the cleaning fluid enter the inner walls of each needle with sufficient flow rate and pressure for effective cleaning. The booster pump's outlet pressure reaching the predetermined threshold ensures that the cleaning fluid enters the needle's inner walls with appropriate pressure and flow rate, effectively flushing away attached residues and impurities, thus improving the cleaning effect.
[0017] In some embodiments, each of the diversion components further includes a pressure boosting reflux valve, and each diversion block has a reflux port that can communicate with the liquid supply component via the pressure boosting reflux valve. When cleaning the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a diversion component, the first valve body, the second valve body, and the third valve body are all closed in the diversion component to be cleaned, and the pressure boosting reflux valve is opened. After the outlet pressure of the booster pump meets a predetermined threshold, the first valve body, the second valve body, and the third valve body are opened again, and the pressure boosting reflux valve is closed. The opening of the pressure boosting reflux valve allows the outlet pressure of the booster pump to reach the predetermined threshold more quickly. Because the outlet pressure of the booster pump can reach the predetermined value more quickly, the cleaning solution can enter the inner wall of the needle more quickly, achieving efficient cleaning, reducing waiting time, and improving work efficiency.
[0018] In some embodiments, the analyzer's needle cleaning system further includes a pressure-boosting shunt and a pressure-boosting reflux valve. The pressure-boosting shunt has an inlet, a first outlet, and a second outlet. The inlet is connected to the booster pump, the first outlet is connected to the liquid inlet of the multi-way valve, and the second outlet is connected to the liquid supply assembly via the pressure-boosting reflux valve. When cleaning the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a shunt assembly, the first valve body, the second valve body, and the third valve body are all closed in the shunt assembly to be cleaned, and the pressure-boosting reflux valve is opened. After the outlet pressure of the booster pump meets a predetermined threshold, the first valve body, the second valve body, and the third valve body are opened again, and the pressure-boosting reflux valve is closed. Compared to providing a corresponding pressure-boosting reflux valve in each shunt assembly, this embodiment can use only a single pressure-boosting reflux valve. Reducing the number of pressure-boosting reflux valves simplifies system design and reduces system complexity. This helps reduce potential failure points and improves system reliability. Using fewer components reduces production and maintenance costs. The material and installation costs of each booster reflux valve can be accumulated, directly reducing overall costs. Furthermore, fewer components in the system simplify maintenance and repair, allowing operators to identify and resolve problems more quickly.
[0019] In some embodiments, the analyzer’s needle cleaning system further includes a first reagent injector for the measurement system, and the first valve body is connected to the first reagent needle through the first reagent injector for the measurement system.
[0020] In some embodiments, the analyzer’s needle cleaning system further includes a second reagent injector for the measurement system, and the second valve body is connected to the second reagent needle through the second reagent injector for the measurement system.
[0021] In some embodiments, the analyzer’s needle cleaning system further includes a measurement system sample injector, and the third valve body is in communication with the sample needle through the measurement system sample injector.
[0022] In some embodiments, the liquid supply assembly is a cleaning container for holding the cleaning fluid.
[0023] In some embodiments, the liquid supply assembly includes a liquid supply end and a liquid return end, the booster pump is connected to the liquid supply end, and the booster return valve is connected to the liquid return end. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the needle cleaning system of an analyzer provided in one embodiment of the present invention.
[0026] Figure 2 This is another schematic diagram of the needle cleaning system of the analyzer provided in one embodiment of the present invention.
[0027] Figure 3 This is another schematic diagram of the needle cleaning system of the analyzer provided in one embodiment of the present invention.
[0028] Figure label:
[0029] 10. Liquid supply assembly; 11. Liquid supply end of tubing; 12. Return end of tubing; 20. Booster pump; 30. Multi-port valve; 40. Needle; 41. Reagent needle; 411. First reagent needle; 412. Second reagent needle; 42. Sample needle; 50. Diverter block; 61. First valve body; 62. Second valve body; 63. Third valve body; 70. Booster return valve; 80. Booster diverter; 91. First reagent syringe of measurement system; 92. Second reagent syringe of measurement system; 93. Sample syringe of measurement system. Detailed Implementation
[0030] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0031] Please see Figure 1 and Figure 2 In some embodiments, the present invention provides a needle cleaning system for an analyzer, which includes a liquid supply assembly 10, a booster pump 20, a multi-way valve 30, and multiple diversion assemblies. The liquid supply assembly 10 is used to supply cleaning fluid; the booster pump 20 is connected to the liquid supply assembly 10; the multi-way valve 30 has an inlet end and multiple outlet ends, the inlet end is connected to the liquid supply assembly 10 through the booster pump 20, and the booster pump 20 can pressurize and deliver the cleaning fluid to the multi-way valve 30; each diversion assembly includes a needle 40 and a diversion block 50, each diversion block 50 has an inlet and a diversion port, the inlet can be connected to the outlet end and correspond one-to-one, and the needle 40 is connected to the diversion port; wherein, when cleaning the inner wall of the needle 40 of a diversion assembly is required, one outlet end of the multi-way valve 30 is opened and connected to the inlet of the diversion block 50 corresponding to the diversion assembly, and the other outlet ends of the multi-way valve 30 are closed.
[0032] The needle cleaning system of the aforementioned analyzer achieves at least the following beneficial effects: By pressurizing and delivering the cleaning solution to the multi-way valve 30 via the booster pump 20, the flow rate and cleaning effect of the cleaning solution are effectively increased, ensuring thorough cleaning of the inner wall of the sampling needle and reducing the risk of cross-contamination. The design of the multi-way valve 30 allows for flexible selection of the diversion components to be cleaned as needed, avoiding unnecessary cleaning operations and improving the system's flexibility and controllability. By controlling the opening and closing of the multi-way valve 30, precise control of the cleaning actions of different diversion components can be achieved, ensuring the synchronization and effectiveness of the cleaning process and avoiding flow fluctuations during cleaning. The design of the multi-way valve 30 connects multiple outlets to the diversion components, avoiding the use of multiple pumps, simplifying the system structure, and reducing equipment complexity. The use of a single booster pump 20 and multi-way valve 30 reduces the number of required equipment, thereby reducing material and production costs and improving economic efficiency. The streamlined system structure and reduced number of components also make equipment maintenance easier, reducing the failure rate and improving equipment reliability.
[0033] like Figure 1 and Figure 2As shown, in some embodiments, the number of needles 40 corresponds one-to-one with the number of diversion ports. By pairing each needle 40 with a corresponding diversion port, it is ensured that the cleaning solution can be accurately delivered to each needle 40, avoiding possible confusion or misoperation during the cleaning process, and improving the targeting and effectiveness of the cleaning. The one-to-one correspondence design makes the cleaning process more efficient. When a specific needle 40 needs to be cleaned, the system can quickly switch to the corresponding diversion port, reducing cleaning time and improving the analyzer's working efficiency.
[0034] like Figure 1 and Figure 2 As shown, in some embodiments, the needle 40 includes a reagent needle 41 and a sample needle 42.
[0035] like Figure 1 and Figure 2 As shown, in some embodiments, the reagent needle 41 includes a first reagent needle 411 and a second reagent needle 412, and the diversion port includes a first diversion port, a second diversion port, and a third diversion port. The first reagent needle 411 is connected to the first diversion port, the second reagent needle 412 is connected to the second diversion port, and the sample needle 42 is connected to the third diversion port. When cleaning the inner walls of the first reagent needle 411, the second reagent needle 412, and the sample needle 42 of a diversion assembly, one of the outlet ends of the multi-way valve 30 is opened and connected to the inlet of the diversion block 50 corresponding to the diversion assembly, while the other outlet ends of the multi-way valve 30 are closed.
[0036] like Figure 1 and Figure 2As shown, in some embodiments, each of the diversion components further includes a first valve body 61, a second valve body 62, and a third valve body 63. The first diversion port is connected to the first reagent needle 411 via the first valve body 61, the second diversion port is connected to the second reagent needle 412 via the second valve body 62, and the third diversion port is connected to the sample needle 42 via the third valve body 63. When cleaning the inner walls of the first reagent needle 411, the second reagent needle 412, and the sample needle 42 of a diversion component, the first valve body 61, the second valve body 62, and the third valve body 63 are all closed in the diversion component to be cleaned until the outlet pressure of the booster pump 20 meets a predetermined threshold before being opened. During the cleaning process, one outlet end of the multi-way valve 30 is opened and connected to the inlet of the diversion block 50 corresponding to the diversion component. This design ensures that the cleaning fluid can effectively flow into the inner wall of the required needle 40 to achieve the cleaning purpose. During the cleaning process, the remaining outlet ends remain closed. This measure prevents the cleaning fluid from flowing to needles 40 that do not require cleaning, avoiding waste and the risk of cross-contamination. Since the cleaning fluid only flows to needles 40 that need cleaning, cleaning time is reduced, overall cleaning efficiency is improved, and the equipment can quickly return to normal operation. Before cleaning, the first valve body 61, the second valve body 62, and the third valve body 63 within the diversion assembly are all closed. This operation effectively prevents the cleaning fluid from flowing into the needles 40 before reaching the appropriate pressure, thus avoiding potential uneven cleaning or liquid overflow. The booster pump 20 is started, gradually increasing its outlet pressure. The outlet pressure of the booster pump 20 continuously increases until a predetermined threshold is reached. Once the outlet pressure of the booster pump 20 meets the predetermined threshold, the first valve body 61, the second valve body 62, and the third valve body 63 are opened sequentially. The timing of this step is crucial. Only when the pressure reaches the predetermined threshold can the cleaning fluid enter the inner wall of each needle 40 at a sufficient flow rate and pressure to effectively clean it. After the outlet pressure of the booster pump 20 reaches the predetermined threshold, it can ensure that the cleaning fluid enters the inner wall of the needle 40 at an appropriate pressure and flow rate, thereby effectively flushing away the attached residues and impurities and improving the cleaning effect.
[0037] like Figure 1As shown, in some embodiments, each of the diversion components further includes a booster reflux valve 70, and each of the diversion blocks 50 has a reflux port, which can be connected to the liquid supply component 10 through the booster reflux valve 70. When the inner walls of the first reagent needle 411, the second reagent needle 412, and the sample needle 42 of a diversion component need to be cleaned, in the diversion component to be cleaned, the first valve body 61, the second valve body 62, and the third valve body 63 are all closed first, the booster reflux valve 70 is opened, and after the outlet pressure of the booster pump 20 meets a predetermined threshold, the first valve body 61, the second valve body 62, and the third valve body 63 are opened again, and the booster reflux valve 70 is closed. The opening of the booster reflux valve 70 allows the outlet pressure of the booster pump 20 to reach the predetermined threshold more quickly. Because the outlet pressure of the booster pump 20 can reach the predetermined value more quickly, the cleaning fluid can enter the inner wall of the needle 40 more quickly, achieving efficient cleaning, reducing waiting time, and improving work efficiency.
[0038] like Figure 2 As shown, in some embodiments, the needle cleaning system of the analyzer further includes a pressure boosting splitter 80 and a pressure boosting reflux valve 70. The pressure boosting splitter 80 has an inlet, a first outlet, and a second outlet. The inlet is connected to the booster pump 20, the first outlet is connected to the liquid inlet of the multi-way valve 30, and the second outlet is connected to the liquid supply assembly 10 through the pressure boosting reflux valve 70. When cleaning the inner walls of the first reagent needle 411, the second reagent needle 412, and the sample needle 42 of a splitter assembly, the first valve body 61, the second valve body 62, and the third valve body 63 are all closed first in the splitter assembly to be cleaned, and the pressure boosting reflux valve 70 is opened. After the outlet pressure of the booster pump 20 meets a predetermined threshold, the first valve body 61, the second valve body 62, and the third valve body 63 are opened again, and the pressure boosting reflux valve 70 is closed. Compared to providing a corresponding booster return valve 70 in each diversion component, this embodiment can use only a single booster return valve 70. Reducing the number of booster return valves 70 simplifies system design and reduces system complexity. This helps reduce potential points of failure and improves system reliability. Using fewer components reduces production and maintenance costs. The material and installation costs of each booster return valve 70 can be accumulated, directly reducing the overall cost. Furthermore, with fewer components in the system, maintenance and repair become simpler, and operators can identify and handle problems more quickly.
[0039] like Figure 1 and Figure 2As shown, in some embodiments, the needle cleaning system of the analyzer further includes a first reagent injector 91 of the measurement system, and the first valve body 61 is connected to the first reagent needle 411 through the first reagent injector 91 of the measurement system.
[0040] like Figure 1 and Figure 2 As shown, in some embodiments, the analyzer's needle cleaning system further includes a measurement system second reagent injector 92, and the second valve body 62 is connected to the second reagent needle 412 through the measurement system second reagent injector 92.
[0041] like Figure 1 and Figure 2 As shown, in some embodiments, the analyzer's needle cleaning system further includes a measurement system sample injector 93, and the third valve body 63 is connected to the sample needle 42 through the measurement system sample injector 93.
[0042] like Figure 1 and Figure 2 As shown, in some embodiments, the liquid supply assembly 10 is a cleaning container used to hold the cleaning liquid.
[0043] like Figure 3 As shown, in some embodiments, the liquid supply assembly 10 may also be a low-pressure fluid pipeline system, such as the liquid supply assembly 10 including a pipeline supply end 11 and a pipeline return end 12, the booster pump 20 being connected to the pipeline supply end 11, and the booster return valve 70 being connected to the pipeline return end 12.
[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
[0046] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0049] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.
[0051] In this specification, the use of terms such as "an embodiment," "another implementation," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Claims
1. A needle cleaning system for an analyzer, characterized in that, include: A liquid supply assembly for supplying cleaning fluid; A booster pump, which is connected to the liquid supply assembly; A multi-way valve having an inlet end and multiple outlet ends, wherein the inlet end is connected to a liquid supply assembly via a booster pump, and the booster pump is capable of pressurizing and delivering the cleaning fluid to the multi-way valve. as well as Multiple diversion components, each of the diversion components including a needle and a diversion block, each of the diversion blocks having an inlet and a diversion port, the inlet being able to communicate with the liquid outlet and corresponding one-to-one, the needle being connected to the diversion port; When cleaning the inner wall of the needle of one of the diversion components, one of the outlet ends of the multi-way valve is opened and connected to the inlet of the diversion block corresponding to the diversion component, while the other outlet ends of the multi-way valve are closed.
2. The needle cleaning system for the analyzer according to claim 1, characterized in that, The number of needles corresponds one-to-one with the number of shunt ports.
3. The needle cleaning system for the analyzer according to claim 2, characterized in that, The needles include reagent needles and / or sample needles.
4. The needle cleaning system for the analyzer according to claim 3, characterized in that, The reagent needles include a first reagent needle and a second reagent needle, and the shunt ports include a first shunt port, a second shunt port, and a third shunt port. The first reagent needle is connected to the first shunt port, the second reagent needle is connected to the second shunt port, and the sample needle is connected to the third shunt port. When cleaning the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a shunt assembly, one outlet end of the multi-way valve is opened and connected to the inlet of the shunt block corresponding to the shunt assembly, while the other outlet ends of the multi-way valve are closed.
5. The needle cleaning system for the analyzer according to claim 4, characterized in that, Each of the shunt components further includes a first valve body, a second valve body, and a third valve body. The first shunt port is connected to the first reagent needle through the first valve body, the second shunt port is connected to the second reagent needle through the second valve body, and the third shunt port is connected to the sample needle through the third valve body. When the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a shunt component need to be cleaned, the first valve body, the second valve body, and the third valve body are all closed in the shunt component to be cleaned until the outlet pressure of the booster pump meets a predetermined threshold before being opened.
6. The needle cleaning system for the analyzer according to claim 5, characterized in that, Each of the diversion components also includes a booster reflux valve, and each diversion block has a reflux port that can be connected to the liquid supply component through the booster reflux valve. When the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a diversion component need to be cleaned, the first valve body, the second valve body, and the third valve body are all closed first in the diversion component to be cleaned, the booster reflux valve is opened, and after the outlet pressure of the booster pump meets a predetermined threshold, the first valve body, the second valve body, and the third valve body are opened again, and the booster reflux valve is closed.
7. The needle cleaning system for the analyzer according to claim 5, characterized in that, The needle cleaning system of the analyzer also includes a pressure boosting splitter and a pressure boosting reflux valve. The pressure boosting splitter has an inlet, a first outlet, and a second outlet. The inlet is connected to the booster pump, the first outlet is connected to the liquid inlet of the multi-way valve, and the second outlet is connected to the liquid supply assembly through the pressure boosting reflux valve. When cleaning the inner walls of the first reagent needle, the second reagent needle, and the sample needle of a splitter assembly, the first valve body, the second valve body, and the third valve body are all closed first in the splitter assembly to be cleaned, and the pressure boosting reflux valve is opened. After the outlet pressure of the booster pump meets a predetermined threshold, the first valve body, the second valve body, and the third valve body are opened again, and the pressure boosting reflux valve is closed.
8. The needle cleaning system for the analyzer according to claim 5, characterized in that, The analyzer's needle cleaning system also includes a first reagent injector for the measurement system, and the first valve body is connected to the first reagent needle through the first reagent injector for the measurement system; And / or, the needle cleaning system of the analyzer further includes a second reagent injector for the measurement system, and the second valve body is connected to the second reagent needle through the second reagent injector for the measurement system; And / or, the needle cleaning system of the analyzer further includes a measurement system sample injector, and the third valve body is connected to the sample needle through the measurement system sample injector.
9. The needle cleaning system for the analyzer according to any one of claims 1 to 8, characterized in that, The liquid supply component is a cleaning container, which is used to hold the cleaning liquid.
10. The needle cleaning system for the analyzer according to any one of claims 6 to 7, characterized in that, The liquid supply assembly includes a liquid supply end and a liquid return end, the booster pump is connected to the liquid supply end, and the booster return valve is connected to the liquid return end.