Washing module and sample analyzer having the same

Abstract

The application provides a cleaning module and a sample analyzer with the same. The cleaning module is used for injecting cleaning liquid into a reaction cup containing a magnetic bead compound or extracting waste liquid, and comprises a cleaning module body, a liquid injection needle assembly used for injecting the cleaning liquid into the reaction cup, and a waste liquid extraction needle assembly used for extracting the waste liquid in the reaction cup. The waste liquid extraction needle assembly comprises a mounting seat and a waste liquid extraction needle arranged on the mounting seat, and has a working position for extracting the waste liquid and a cleaning position for cleaning the waste liquid extraction needle. The technical scheme of the application effectively solves the cross contamination problem caused by the incomplete cleaning of the waste liquid extraction needle in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical apparatuses, in particular to a cleaning module and a sample analyzer with the same. BACKGROUND

[0002] Taking a chemiluminescence immunoassay analyzer in a sample analyzer as an example, chemiluminescence immunoassay technology is a kind of high-sensitivity and high-specificity analyzer that has developed rapidly worldwide in recent years, which is used for detecting various immune indexes of blood, urine or other body fluids in a clinical laboratory. The principle is to combine antibody-antigen reaction with chemiluminescence technology to achieve high specificity and high sensitivity. In chemiluminescence analysis, the reaction solution in the reaction container needs to be separated and cleaned to obtain more accurate measurement results. Generally, the cleaning method is to inject cleaning liquid into the reaction container, mix thoroughly, and then use the waste liquid extraction needle assembly to remove the waste liquid in the reaction cup.

[0003] In a common cleaning mechanism, the injection needle and the waste liquid extraction needle are relatively fixed and integrated. When cleaning the waste liquid extraction needle, the injection needle is generally used to inject cleaning liquid to the outer wall of the waste liquid extraction needle to flush the outer wall of the waste liquid extraction needle. However, there is a situation that the waste liquid extraction needle tip and other positions cannot be cleaned, and at this time, if the waste liquid extraction needle is used to extract the waste liquid, it is easy to cause cross contamination to the subsequent reaction cup. SUMMARY

[0004] The main purpose of the present application is to provide a cleaning module and a sample analyzer with the same to solve the problem of cross contamination caused by incomplete cleaning of the waste liquid extraction needle in the prior art.

[0005] In order to achieve the above purpose, according to one aspect of the present application, a cleaning module for injecting cleaning liquid or extracting waste liquid from a reaction cup containing magnetic bead complexes is provided, comprising: a cleaning module main body; an injection needle assembly for injecting cleaning liquid into the reaction cup; a waste liquid extraction needle assembly, the waste liquid extraction needle assembly is used to extract the waste liquid in the reaction cup; the waste liquid extraction needle assembly comprises a mounting seat and a waste liquid extraction needle arranged on the mounting seat, and the waste liquid extraction needle assembly has a working position for extracting waste liquid and a cleaning position for cleaning the waste liquid extraction needle.

[0006] Further, the waste liquid extraction needle assembly further comprises a driving part and a moving frame, the mounting seat is fixedly installed on the cleaning module main body, the driving part is fixed on the mounting seat, the moving frame is connected with the driving part, and the waste liquid extraction needle is fixed on the moving frame; the waste liquid extraction needle moves back and forth between the working position and the cleaning position under the driving of the driving part.

[0007] Further, the moving frame comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected with the driving part.

[0008] Further, the waste liquid extraction needle comprises two, the first end of the second connecting rod is connected to the middle of the first connecting rod to form a T-shaped structure, and the two waste liquid extraction needles are installed at the two ends of the first connecting rod.

[0009] Further, the moving frame comprises a pipeline support arranged on the first connecting rod, the waste liquid extraction needle assembly comprises a waste liquid extraction pipeline and a waste liquid extraction pump, the waste liquid extraction pipeline is connected with the waste liquid extraction needle, and the waste liquid extraction pump is connected with the waste liquid extraction pipeline.

[0010] Further, the waste liquid extraction needle assembly further comprises a sensor arranged on one side of the waste liquid extraction pipeline close to the waste liquid extraction needle to detect the liquid in the waste liquid extraction pipeline.

[0011] Further, the liquid injection needle assembly comprises a fixing frame and a liquid injection needle, the liquid injection needle is fixed on the fixing frame, and the liquid injection needle is connected with the cleaning liquid through a liquid injection system.

[0012] Further, the cleaning module further comprises a reaction cup module, the reaction cup module comprises a rotating disc with a through hole, the fixing frame comprises an upright frame and a mounting arm, the first end of the upright frame is connected with the first bottom plate, the center axis of the rotating disc is located in the through hole, the second end of the upright frame penetrates through the through hole, the first end of the mounting arm is connected with the second end of the upright frame, and the liquid injection needle is mounted on the second end of the mounting arm.

[0013] Further, the pipeline of the liquid injection system penetrates through the through hole of the rotating disc and is connected with the liquid injection needle.

[0014] Further, the mounting arm is a plurality of, and the plurality of mounting arms are horizontally radiated from the second end of the upright frame to the direction away from the second end of the upright frame.

[0015] Further, the mounting seat comprises a second bottom plate and an upright plate, the second bottom plate is fixed on the cleaning module body, the upright plate is fixed on the second bottom plate, the upright plate has an inverted U-shaped hole, the moving frame comprises a connecting frame body and a connecting shaft arranged on the connecting frame body, the connecting shaft penetrates through the inverted U-shaped hole and is connected with the driving part, so that the connecting shaft can move along the track of the inverted U-shaped hole.

[0016] Further, the driving part comprises a driving motor and a rotary driving block, the driving motor is fixed on the mounting seat, the rotary driving block is fixed on the rotating shaft of the driving motor, a slot is arranged on the rotary driving block, the connecting shaft is arranged in the slot through the inverted U-shaped hole, and the connecting shaft can move along the axis of the slot.

[0017] Further, the cleaning module further comprises a waste liquid extraction needle cleaning system, the waste liquid extraction needle cleaning system comprises a cleaning tank and a cleaning pump, the opening of the cleaning tank faces upward, and when the waste liquid extraction needle is located at the cleaning position, the waste liquid extraction needle is located in the cleaning tank.

[0018] According to another aspect of the present application, there is provided a sample analyzer comprising the cleaning module as described above.

[0019] The technical scheme of the present application is used to inject the cleaning liquid into the reaction cup by the liquid injection needle assembly, then to extract the waste liquid in the reaction cup when the waste liquid extraction needle assembly is located at the working position of extracting the waste liquid, and to clean the waste liquid extraction needle assembly after the waste liquid in the reaction cup is extracted, so that the waste liquid extraction needle is cleaned separately, which can make the cleaning more clean, greatly reduce the residual waste liquid on the waste liquid extraction needle, and effectively avoid the cross contamination caused by the waste liquid extraction needle. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings, and their description, are presented to add generic structure for a thorough and complete understanding of the application. In the drawings:

[0021] Figure 1 Fig. 1 shows a perspective structural schematic view of an embodiment of the cleaning module according to the present application;

[0022] Figure 2 Fig. 2 shows a top view schematic view of the cleaning module of Fig. 1; Figure 1

[0023] Figure 3 Fig. 3 shows a perspective structural schematic view of the waste liquid extraction needle assembly of the cleaning module of Fig. 1; Figure 1

[0024] Figure 4 Fig. 4 shows a perspective structural schematic view of the waste liquid extraction needle assembly of Fig. 3 from another angle; and Figure 3

[0025] Figure 5 Fig. 5 shows a top view schematic view of the liquid injection needle assembly of the cleaning module of Fig. 1. Figure 1

[0026] In the above drawings, the following reference signs are used:

[0027] 10, reaction cup module; 20, liquid injection needle assembly; 21, fixing frame; 22, liquid injection needle; 30, waste liquid extraction needle assembly; 31, mounting seat; 32, driving part; 321, driving motor; 322, rotary driving block; 33, moving frame; 34, waste liquid extraction needle; 35, inverted U-shaped hole; 36, sensor; 40, waste liquid extraction needle cleaning system; 41, cleaning tank. DETAILED DESCRIPTION

[0028] ​​​​It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 application pertains.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions has been enlarged, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0032] like Figures 1 to 5 As shown, the cleaning module of this embodiment is used to inject cleaning fluid into a reaction cup containing a magnetic bead composite or to extract waste liquid. The cleaning module includes: a cleaning module body, an injection needle assembly 20, and a waste liquid extraction needle assembly 30. The injection needle assembly 20 is used to inject cleaning fluid into the reaction cup. The waste liquid extraction needle assembly 30 is used to extract waste liquid from the reaction cup; the waste liquid extraction needle assembly 30 includes a mounting base 31 and a waste liquid extraction needle 34 disposed on the mounting base 31. The waste liquid extraction needle assembly 30 has a working position for extracting waste liquid and a cleaning position for cleaning the waste liquid extraction needle.

[0033] The liquid in the reaction cup is extracted by the waste liquid extraction needle assembly 30, and then the liquid injection needle assembly 20 injects the cleaning liquid into the reaction cup. After the waste liquid extraction needle assembly 30 extracts the waste liquid in the reaction cup, the waste liquid extraction needle 34 is cleaned separately, which can clean more thoroughly, greatly reducing the residual waste liquid on the waste liquid extraction needle 34, thereby effectively avoiding cross contamination caused by the waste liquid extraction needle. The technical solution of the embodiment effectively solves the problem of cross contamination caused by the waste liquid extraction needle in the prior art.

[0034] In addition, the fixing frame 21 of the liquid injection needle assembly 20 is fixed on the reaction cup module 10, so that the liquid injection needle 22 and the liquid injection system do not need to be moved frequently, thereby greatly reducing the damage speed of the liquid injection system and prolonging the service life of the liquid injection needle assembly, thereby further reducing the use cost. The liquid injection system includes a liquid injection pipeline and a liquid injection pump, and the liquid injection pump is arranged on the liquid injection pipeline. Of course, according to the needs, the liquid injection system can also include a solenoid valve and a flow meter, and the solenoid valve and the flow meter are arranged on the liquid injection pipeline.

[0035] As shown in Figure 3 and Figure 4 In the technical solution of the embodiment, the waste liquid extraction needle assembly 30 further includes a driving part 32 and a moving frame 33, the mounting seat 31 is fixedly installed on the cleaning module body, the driving part 32 is fixed on the mounting seat 31, the moving frame 33 is connected with the driving part 32, and the waste liquid extraction needle 34 is fixed on the moving frame 33; the waste liquid extraction needle 34 moves back and forth between the working position and the cleaning position under the driving of the driving part 32. The setting of the moving frame 33 makes the waste liquid extraction needle 34 move conveniently, and the setting of the driving part 32 facilitates the movement of the waste liquid extraction needle 34. Specifically, the driving part 32 includes a driving motor, and the driving motor has a low processing cost. The setting of the moving frame 33 can convert the rotation of the driving motor into the regular movement of the waste liquid extraction needle 34.

[0036] As shown in Figure 3 and Figure 4As shown in the technical scheme of the embodiment, the moving frame 33 comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected to the driving part 32. The above structure has low processing cost, is convenient to set, and has compact structure. When the moving frame 33 drives the waste liquid suction needle 34 to move, the movement is more accurate. It should be noted that the second end of the second connecting rod is connected to the driving part 32, which includes direct connection or indirect connection. For example, the second connecting rod of the embodiment is indirectly connected to the driving part 32 through a vertical plate, a sliding block, and a connecting shaft. Specifically, the second end of the second connecting rod is connected to the vertical plate, the vertical plate is provided with a horizontal slide, the sliding block is located in the horizontal slide, the vertical plate is provided with a vertical slide, the sliding block is matched with the vertical slide, and the connecting shaft is arranged on the vertical plate. The above constraints ensure the horizontal movement and vertical movement of the moving frame 33.

[0037] As shown in the technical scheme of the embodiment, the moving frame 33 comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected to the driving part 32. The above structure has low processing cost, is convenient to set, and has compact structure. When the moving frame 33 drives the waste liquid suction needle 34 to move, the movement is more accurate. It should be noted that the second end of the second connecting rod is connected to the driving part 32, which includes direct connection or indirect connection. For example, the second connecting rod of the embodiment is indirectly connected to the driving part 32 through a vertical plate, a sliding block, and a connecting shaft. Specifically, the second end of the second connecting rod is connected to the vertical plate, the vertical plate is provided with a horizontal slide, the sliding block is located in the horizontal slide, the vertical plate is provided with a vertical slide, the sliding block is matched with the vertical slide, and the connecting shaft is arranged on the vertical plate. The above constraints ensure the horizontal movement and vertical movement of the moving frame 33. Figure 3 Figure 4 As shown in the technical scheme of the embodiment, the moving frame 33 comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected to the driving part 32. The above structure has low processing cost, is convenient to set, and has compact structure. When the moving frame 33 drives the waste liquid suction needle 34 to move, the movement is more accurate. It should be noted that the second end of the second connecting rod is connected to the driving part 32, which includes direct connection or indirect connection. For example, the second connecting rod of the embodiment is indirectly connected to the driving part 32 through a vertical plate, a sliding block, and a connecting shaft. Specifically, the second end of the second connecting rod is connected to the vertical plate, the vertical plate is provided with a horizontal slide, the sliding block is located in the horizontal slide, the vertical plate is provided with a vertical slide, the sliding block is matched with the vertical slide, and the connecting shaft is arranged on the vertical plate. The above constraints ensure the horizontal movement and vertical movement of the moving frame 33.

[0038] As shown in the technical scheme of the embodiment, the moving frame 33 comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected to the driving part 32. The above structure has low processing cost, is convenient to set, and has compact structure. When the moving frame 33 drives the waste liquid suction needle 34 to move, the movement is more accurate. It should be noted that the second end of the second connecting rod is connected to the driving part 32, which includes direct connection or indirect connection. For example, the second connecting rod of the embodiment is indirectly connected to the driving part 32 through a vertical plate, a sliding block, and a connecting shaft. Specifically, the second end of the second connecting rod is connected to the vertical plate, the vertical plate is provided with a horizontal slide, the sliding block is located in the horizontal slide, the vertical plate is provided with a vertical slide, the sliding block is matched with the vertical slide, and the connecting shaft is arranged on the vertical plate. The above constraints ensure the horizontal movement and vertical movement of the moving frame 33. Figure 3 Figure 4 As shown in the technical scheme of the embodiment, the moving frame 33 comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected to the driving part 32. The above structure has low processing cost, is convenient to set, and has compact structure. When the moving frame 33 drives the waste liquid suction needle 34 to move, the movement is more accurate. It should be noted that the second end of the second connecting rod is connected to the driving part 32, which includes direct connection or indirect connection. For example, the second connecting rod of the embodiment is indirectly connected to the driving part 32 through a vertical plate, a sliding block, and a connecting shaft. Specifically, the second end of the second connecting rod is connected to the vertical plate, the vertical plate is provided with a horizontal slide, the sliding block is located in the horizontal slide, the vertical plate is provided with a vertical slide, the sliding block is matched with the vertical slide, and the connecting shaft is arranged on the vertical plate. The above constraints ensure the horizontal movement and vertical movement of the moving frame 33.

[0039] As​​Figure 3 And Figure 4 As shown in

[0040] As shown in Figure 3 And Figure 4 As shown in the technical scheme of the embodiment, the waste liquid extraction needle 34 is connected with the waste liquid system through the liquid extraction system. The liquid extracted by the waste liquid extraction needle 34 flows into the waste liquid system through the waste liquid extraction needle, which is beneficial to clean the inside of the waste liquid extraction needle 34.

[0041] As shown in Figure 1 And Figure 5 As shown in the technical scheme of the embodiment, the liquid injection needle assembly 20 includes a fixing frame 21 and a liquid injection needle 22, the liquid injection needle 22 is fixed on the fixing frame 21, and the liquid injection needle 22 is connected with the cleaning liquid through the liquid injection system. The fixing frame 21 is provided to facilitate the fixation of the liquid injection needle 22, and the liquid injection needle 22 is connected with the cleaning liquid through the liquid injection system, so that the liquid injection needle 22 is not easily contaminated. It should be noted that the liquid injection needle assembly 20 does not need to be moved when working, and the fixing frame 21 fixes the liquid injection needle 22.

[0042] As shown in Figure 1 And Figure 5 As shown in the technical scheme of the embodiment, the reaction cup module 10 includes a rotating disc with a through hole, the fixing frame 21 includes a stand and a mounting arm, the first end of the stand is connected with the first bottom plate, the center axis of the rotating disc is located in the through hole, the second end of the stand passes through the through hole, the first end of the mounting arm is connected with the second end of the stand, and the liquid injection needle 22 is installed on the second end of the mounting arm. The above structure is compact and has a relatively light quality. The stand passes through the through hole, and since the center axis is located in the through hole, the stand can not need to be moved when the rotating disc rotates, which greatly prolongs the service life of the fixing frame 21 and the liquid injection system. It should be noted that the reaction cup module 10 is a component of the sample analyzer, and the cleaning module needs to be used in cooperation with the reaction cup module 10.

[0043] As shown in Figure 1 As shown in the technical scheme of the embodiment, the pipeline of the liquid injection system is connected with the liquid injection needle 22 through the through hole of the rotating disc. It should be noted that the pipeline of the liquid injection system mentioned above refers to the pipeline of the liquid injection system connected with the liquid injection needle 22. In this way, the pipeline of the liquid injection system does not need to be moved frequently, thereby prolonging the service life of the liquid injection system.

[0044] As shown in Figure 1 And Figure 5As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection.

[0045] As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection. Figure 1 As shown in the technical scheme of the embodiment, the injection needle 22 is connected with the cleaning liquid through the liquid injection system. The injection needle 22 has a special liquid injection system, and the injection needle 22 with the above structure is not easily contaminated.

[0046] As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection. Figures 1 to 5 As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection.

[0047] As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection. Figures 1 to 5 As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection.

[0048] As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection. Figure 3 As shown in the technical scheme of the embodiment, the mounting arms are multiple, and the multiple mounting arms are horizontally radiated from the second end of the stand to a direction away from the second end of the stand. The structure of the multiple mounting arms greatly improves the working efficiency of liquid injection. In the technical scheme of the embodiment, the drive part 32 includes a drive motor 321 and a rotary driving block 322, the drive motor 321 is fixed on the mounting seat 31, the rotary driving block 322 is fixed on the rotating shaft of the drive motor 321, the rotary driving block 322 is provided with a slot, the connecting shaft is arranged in the slot through the inverted U-shaped hole 35, and the connecting shaft can move along the axis of the slot. The rotary driving block 322 drives the moving frame 33, and the movement of the moving frame 33 is stable and accurate through the common restraint of the slot and the inverted U-shaped hole 35 on the connecting shaft. Specifically, in the technical scheme of the embodiment, two bearings are arranged on the connecting shaft, one bearing is located between the inverted U-shaped hole 35 and the connecting shaft, and the other bearing is located between the slot and the connecting shaft. The arrangement of the bearings reduces the friction and avoids the jamming of the connecting shaft and the inverted U-shaped hole 35 or the connecting shaft and the slot.

[0049] As shown in FIG. 1, the technical scheme in the embodiment includes a cleaning system 40 for the waste liquid extraction needle 34. The cleaning system 40 includes a cleaning tank 41, a cleaning pipeline and a cleaning pump. The opening of the cleaning tank 41 is upward. When the waste liquid extraction needle 34 is in the cleaning position, the waste liquid extraction needle 34 is located in the cleaning tank 41. Figure 1 and Figure 2 As shown in FIG. 1, the technical scheme in the embodiment includes a cleaning system 40 for the waste liquid extraction needle 34. The cleaning system 40 includes a cleaning tank 41, a cleaning pipeline and a cleaning pump. The opening of the cleaning tank 41 is upward. When the waste liquid extraction needle 34 is in the cleaning position, the waste liquid extraction needle 34 is located in the cleaning tank 41. When the waste liquid extraction needle 34 is cleaned, the waste liquid extraction needle 34 is moved to the cleaning position, so that the waste liquid extraction needle is located in the cleaning tank 41. The cleaning tank 41 has cleaning liquid. The waste liquid extraction needle 34 located in the cleaning tank 41 extracts the cleaning liquid outward, so that the outer wall and the inner wall of the waste liquid extraction needle 34 can be cleaned. Specifically, the cleaning of the outer wall of the waste liquid extraction needle 34 is achieved by spraying liquid on the outer wall through the cleaning tank 41. For the inner wall of the waste liquid extraction needle 34, the cleaning liquid in the cleaning tank 41 is extracted to the waste liquid system through the waste liquid extraction needle, so that the outer wall, the inner wall and the needle tip of the waste liquid extraction needle 34 are all cleaned. The cleaning tank 41 also has a liquid outlet and a liquid inlet. The liquid inlet is located on the side wall of the cleaning tank 41, and the liquid outlet is located on the bottom wall of the cleaning tank 41. The first end of the cleaning pipeline is connected with the liquid inlet, and the cleaning pump is located at the second end of the cleaning pipeline.

[0050] The application also provides a sample analyzer including a cleaning module. The cleaning module is the cleaning module described above.

[0051] It is to be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that the terms "comprise" and / or "include" as used in the specification, indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0052] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0053] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A washing module for injecting a washing liquid into or extracting a waste liquid from a reaction cup containing a magnetic bead complex, characterized in that, The application relates to a cleaning module for a reaction cup, which comprises the following parts: a cleaning module main body; a liquid injection needle assembly (20) for injecting cleaning liquid into the reaction cup; a waste liquid extraction needle assembly (30) and a waste liquid extraction needle cleaning system (40), wherein the waste liquid extraction needle assembly (30) is used for extracting waste liquid in the reaction cup; the waste liquid extraction needle assembly (30) comprises a mounting seat (31) and a waste liquid extraction needle (34) arranged on the mounting seat (31), and the waste liquid extraction needle assembly (30) has a working position for extracting waste liquid and a cleaning position for cleaning the waste liquid extraction needle (34); the waste liquid extraction needle (34) is connected with the waste liquid extraction needle cleaning system (40) through a liquid extraction system. The waste liquid extraction needle assembly (30) further comprises a driving part (32) and a moving frame (33); the mounting seat (31) comprises a vertical plate with a reverse U-shaped hole (35); the moving frame (33) comprises a connecting shaft; the moving frame (33) further comprises a connecting frame main body, the connecting shaft is arranged on the connecting frame main body, and the connecting shaft is connected with the driving part (32) by penetrating through the reverse U-shaped hole (35), so that the connecting shaft can move along the track of the reverse U-shaped hole (35). The driving part (32) comprises a driving motor (321) and a rotary driving block (322), the driving motor (321) is fixed on the mounting seat (31), the rotary driving block (322) is fixed on the rotating shaft of the driving motor (321), a slot is arranged on the rotary driving block (322), the connecting shaft is arranged in the slot by penetrating through the reverse U-shaped hole (35), and the connecting shaft can move along the axis of the slot. The mounting seat (31) is fixedly arranged on the cleaning module main body, the driving part (32) is fixed on the mounting seat (31), the moving frame (33) is connected with the driving part (32), and the waste liquid extraction needle (34) is fixed on the moving frame (33); the waste liquid extraction needle (34) moves back and forth between the working position and the cleaning position under the driving of the driving part (32). The moving frame (33) comprises a first connecting rod and a second connecting rod, the first end of the second connecting rod is connected to the first connecting rod, and the second end of the second connecting rod is connected with the driving part (32). The waste liquid extraction needle (34) comprises two parts, the first end of the second connecting rod is connected to the middle of the first connecting rod to form a T-shaped structure, and the two waste liquid extraction needles (34) are arranged at the two ends of the first connecting rod.

2. The cleaning module of claim 1, wherein, The moving frame (33) comprises a pipeline support arranged on the first connecting rod, the waste liquid extraction needle assembly (30) comprises a waste liquid extraction pipeline and a waste liquid extraction pump, the waste liquid extraction pipeline is connected with the waste liquid extraction needle (34), and the waste liquid extraction pump is connected with the waste liquid extraction pipeline.

3. The cleaning module of claim 2, wherein, The waste liquid extraction needle assembly (30) further comprises a sensor (36) arranged on one side of the waste liquid extraction pipeline close to the waste liquid extraction needle (34), so as to detect the liquid in the waste liquid extraction pipeline.

4. The cleaning module of claim 3, wherein, ​ 5. The cleaning module of claim 3, wherein, ​ 6. The cleaning module of claim 5, wherein, ​ 7. The cleaning module of claim 1, wherein, The liquid injection needle assembly (20) comprises a fixing frame (21) and a liquid injection needle (22), the liquid injection needle (22) is fixed on the fixing frame (21), and the liquid injection needle (22) is communicated with the cleaning liquid through a liquid injection system.

8. The cleaning module of claim 7, wherein, The cleaning module further comprises a reaction cup module (10), the reaction cup module (10) comprises a rotating disc with a through hole, the fixing frame (21) comprises a vertical frame and a mounting arm, the first end of the vertical frame is connected with a first bottom plate, the central axis of the rotating disc is located in the through hole, the second end of the vertical frame passes through the through hole, the first end of the mounting arm is connected with the second end of the vertical frame, and the liquid injection needle (22) is mounted on the second end of the mounting arm.

9. The cleaning module of claim 8, wherein, The pipeline of the liquid injection system is connected with the liquid injection needle (22) through the through hole of the rotating disc.

10. The cleaning module of claim 8, wherein, The mounting arm is a plurality of mounting arms, and the plurality of mounting arms are horizontally radiated from the second end of the vertical frame to the direction away from the second end of the vertical frame.

11. The cleaning module of claim 2, wherein, The mounting seat (31) further comprises a second bottom plate, the second bottom plate is fixed on the cleaning module body, and the vertical plate is fixed on the second bottom plate.

12. The cleaning module of claim 1, wherein, The waste liquid needle cleaning system (40) comprises a cleaning tank (41) and a cleaning pump, the opening of the cleaning tank (41) faces upward, and when the waste liquid needle (34) is located at the cleaning position, the waste liquid needle (34) is located in the cleaning tank (41).

13. A sample analyzer comprising a wash module, characterized by, The cleaning module is the cleaning module in any one of claims 1 to 12.

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