Sample suction device and sample analyzer

Abstract

According to the sample suction device and the sample analyzer, a refrigeration assembly in the sample suction device is installed on a support and provided with a containing space for containing reagent bottles, and the refrigeration assembly comprises a bin door used for sealing the containing space. The reagent sample suction assembly is arranged on the bracket in a sliding manner and comprises a reagent needle, and the reagent needle is used for collecting a reagent in a reagent bottle in the refrigeration assembly. The limiting assembly is arranged on the reagent sample suction assembly and used for being connected with the bin door when the first end of the reagent needle collects the reagent in the reagent bottle. The limiting assembly can move along with the reagent sample suction assembly, so that when the reagent needle collects the reagent in the reagent bottle, the posture of the bin door is fixed, and the situation that when the reagent needle collects the reagent in the reagent bottle, a user opens the bin door to replace the reagent bottle, and the reagent needle is damaged is avoided. In the process of collecting the reagent needle, the bin door is locked, so that the safety and the practicability of the sample suction device are improved, and the use experience of a user on the sample suction device is improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a sample suction device and a sample analyzer. Background Technology

[0002] The reagent aspiration inside the existing blood sample analyzer is mainly achieved by a sampling needle. The sampling needle is inserted into the reagent bottle to aspirate the sample. After aspiration, the reagent needs to be transferred from the sampling needle tubing to the reaction cell for testing. When the reagent is used up, it needs to be replaced. When replacing the reagent, the sampling needle needs to be removed from the reagent bottle. After replacing the reagent bottle, the sampling needle is put back into the reagent bottle to aspirate the sample.

[0003] During reagent bottle replacement, the sampling needle must first be moved away from the reagent bottle. Replacement can only proceed after confirming the sampling needle is not inside the bottle. However, it's unavoidable that users might manually open the reagent bottle storage compartment while the analyzer is running, i.e., when the sampling needle is inside the bottle, thus damaging the sampling needle. Alternatively, users may need to manually remove the sampling needle from the bottle before replacement, increasing operational complexity and reducing reagent bottle replacement efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a sampling device, comprising:

[0005] support;

[0006] A refrigeration assembly, mounted on the bracket, has a receiving space for holding reagent bottles; wherein the refrigeration assembly includes a door for sealing the receiving space;

[0007] A reagent sampling assembly is slidably mounted on the support and includes a reagent needle for collecting reagents from reagent bottles in the refrigeration assembly.

[0008] A limiting component is disposed on the reagent aspiration component, and the limiting component is used to fix the posture of the compartment door when the reagent needle collects the reagent in the reagent bottle at the first end.

[0009] The sampling device further includes a transmission assembly, the reagent sampling assembly further includes a movable slider, the reagent needle is mounted on the movable slider, the movable slider is disposed on the transmission assembly, and the movable slider slides relative to the transmission assembly.

[0010] The transmission component is used to drive the movable slider to move relative to the refrigeration component.

[0011] The refrigeration assembly further includes a refrigeration shell with an opening, the refrigeration shell forming the accommodating space, and one end of the door being rotatably connected to the refrigeration shell to cover the opening;

[0012] The door is provided with a limiting slot, and the limiting component is disposed on the movable slider. During the process of the movable slider driving the first end of the reagent needle into the refrigeration shell, the movable slider is also used to drive one end of the limiting component into the limiting slot to fix the posture of the door.

[0013] The sampling device further includes a valve assembly, one end of which is connected to the second end of the reagent needle, and the other end of which is connected to at least one reaction cell. The valve assembly is used to open the pipeline between the reagent needle and the reaction cell so that the reagent collected by the reagent needle enters the reaction cell.

[0014] The valve assembly is mounted on the bracket, and the length of the tubing between the valve assembly and the reagent needle is less than the length of the tubing between the valve assembly and the reaction cell.

[0015] The sampling device further includes a valve assembly, one end of which is connected to the second end of the reagent needle. The valve assembly is mounted on the movable slider. When the movable slider moves the reagent needle relative to the refrigeration assembly, the valve assembly moves along with the reagent needle.

[0016] The refrigeration shell has at least one needle insertion point on the side near the reagent aspiration assembly, and the first end of the reagent needle enters the accommodating space through the needle insertion point;

[0017] The sampling device further includes a sealing sleeve, which is disposed on the needle insertion position, with the first end of the reagent needle located within the accommodating space, and the sealing sleeve located between the needle insertion position and the reagent needle.

[0018] The transmission assembly includes a timing belt, a linear guide rail, and a motor; the timing belt, the linear guide rail, and the motor are all mounted on the bracket.

[0019] The extension direction of the synchronous belt is parallel to the extension direction of the reagent needle, the extension direction of the linear guide rail is parallel to the extension direction of the reagent needle, the synchronous belt and the linear guide rail are spaced apart, and the motor is connected to the synchronous pulley on the synchronous belt.

[0020] One end of the movable slider is connected to the timing belt, and the movable slider is slidably disposed on the linear guide rail. The motor is used to drive the timing belt transmission to drive the movable slider to move relative to the refrigeration assembly along the linear guide rail, so that the movable slider drives the reagent needle to move relative to the refrigeration assembly in the extension direction of the reagent needle.

[0021] The sampling device also includes a positioning detection component, which is spaced apart from the timing belt. The positioning detection component is used to detect when the moving slider drives the reagent needle into the refrigeration component and into position, and when the moving slider drives the reagent needle out of the refrigeration component and into position.

[0022] The sampling device further includes a door detection component, which is disposed on the refrigeration shell and spaced apart from the door, for detecting the posture of the door.

[0023] To address the aforementioned technical problems, this application also provides a sample analyzer, which includes a sampling device, at least one reaction cell, and a detection device as described above. The sampling device is connected to the at least one reaction cell and is used to provide reagents from a reagent bottle to the at least one reaction cell to obtain a sample to be tested in the reaction cell. The detection device is spaced apart from the at least one reaction cell and is used to detect the sample to be tested.

[0024] The beneficial effects of this application are as follows: Unlike existing technologies, the sampling device provided in this application includes a support, a refrigeration component, a reagent sampling component, and a limiting component. The refrigeration component is mounted on the support and has a receiving space for holding reagent bottles. The refrigeration component includes a door for sealing the receiving space. The reagent sampling component is slidably mounted on the support and includes a reagent needle for collecting reagents from reagent bottles within the refrigeration component. The limiting component is mounted on the reagent sampling component and connects to the door when the first end of the reagent needle collects reagents from the reagent bottle. By connecting the limiting component to the reagent sampling component, the limiting component can move with the reagent sampling component. Therefore, when the reagent needle collects reagents from the reagent bottle, the limiting component connects to the door, preventing the user from opening the door to replace the reagent bottle and damaging the reagent needle during reagent collection. The door is locked during reagent collection, improving the safety and practicality of the sampling device and enhancing the user experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] in:

[0027] Figure 1 This is a schematic diagram of the structure of the first embodiment of the sampling device of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the second embodiment of the sampling device of this application;

[0029] Figure 3 This is a schematic diagram of the structure of the third embodiment of the sampling device of this application;

[0030] Figure 4 This is a schematic diagram of the structure of the fourth embodiment of the sampling device of this application;

[0031] Figure 5 This is a schematic diagram of the fifth embodiment of the sampling device of this application.

[0032] Reference numerals in the attached figures: 1. Sampling device; 11. Support; 12. Refrigeration assembly; 121. Door; 1211. Limiting slot; 122. Refrigeration shell; 1221. Needle inlet; 13. Reagent aspiration assembly; 131. Reagent needle; 132. Moving slider; 133. Reagent needle fixing component; 14. Limiting assembly; 15. Transmission assembly; 151. Synchronous belt; 152. Linear guide rail; 153. Motor; 16. Valve assembly; 17. Sealing sleeve; 18. Position detection assembly. Detailed Implementation

[0033] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0034] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0035] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, "many" in this application means two or more. Moreover, the term "at least one" in this application means any combination of at least two of any one or more of a plurality of objects. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C. Furthermore, the terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0037] There are two specific ways to implement reagent aspiration inside existing blood sample analyzers:

[0038] One method involves the sampling needle moving back and forth between the reagent bottle and the reaction cell. This movement draws reagent from the bottle and transfers it to the reaction cell. However, this requires the reagent bottle and reaction cell to be positioned below the needle's path. This allows the needle to move above the bottle, descend to collect the reagent, and then rise to move outside the bottle before moving above and down into the reaction cell to dispense the reagent. This increases the needle's travel distance, taking up valuable space in the analyzer and significantly impacting its spatial layout.

[0039] Furthermore, the sampling needle needs to move between the reagent bottle and the reaction cell, which can easily cause cross-contamination of reagents. Frequent cleaning of the sampling needle is required, increasing the number of liquid path operations and time, and affecting system complexity. This method also requires the sampling needle to frequently pierce into the reagent bottle, placing high demands on the puncture resistance of the sampling needle and bottle cap, which can affect the lifespan of the sampling needle. Additionally, this method inevitably carries the risk of human error or damage to the sampling needle if the reagent bottle is replaced before the sampling needle is lifted during analyzer malfunction, which could also affect the analyzer's testing performance.

[0040] Secondly, the sampling needle is placed in a reagent bottle for collection, and the reagent is moved to the reaction chamber through a liquid system including tubing, valves, and pumps connected to the back of the needle. However, when changing reagent bottles, the sampling needle needs to be manually removed from the bottle, and after changing the bottle, it needs to be manually put back in. This process is cumbersome and reduces the user experience.

[0041] By fixing the sampling needle in the reagent bottle to draw reagents, the problems of large space requirements and cross-contamination associated with the sampling needle movement method in approach one can be solved. However, manual movement of the sampling needle can also cause contamination. Furthermore, the liquid path system behind the sampling needle is usually quite complex, and its design and layout significantly impact the analyzer's testing performance, increasing the risk of performance degradation. For reagents requiring refrigeration, users need to spend extended periods in the refrigeration chamber when changing reagent bottles, which can affect the refrigeration effect and consequently the temperature at which the reagent enters the reaction cell, thus impacting the analyzer's testing efficiency.

[0042] To address the aforementioned problems, this application provides a sampling device, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the first embodiment of the sampling device of this application. The sampling device 1 provided in this embodiment uses method two to reduce the impact of the sampling device 1 on the internal spatial layout of the analyzer and to avoid cross-contamination caused by the movement of the sampling needle between the reagent bottle and the reaction cell. The sampling device 1 includes a support 11, a refrigeration component 12, a reagent sampling component 13, and a limiting component 14.

[0043] The refrigeration component 12 is mounted on the bracket 11 and has a storage space for holding reagent bottles. The refrigeration component 12 is used to refrigerate the reagent bottles placed in the storage space. In one embodiment, if refrigeration of reagents is not required, other structures without refrigeration functions may also be used. The refrigeration component 12 includes a door 121, which is used to seal the storage space to ensure the refrigeration efficiency of the reagent bottles. Users can also replace the reagent bottles in the storage space by opening the door 121.

[0044] The reagent aspiration assembly 13 is slidably mounted on the support 11. The reagent aspiration assembly 13 includes a reagent needle 131, which is used to collect reagents from the reagent bottles in the refrigeration assembly 12. A limiting assembly 14 is mounted on the reagent aspiration assembly 13 and is used to connect with the door 121 when the first end of the reagent needle 131 collects reagents from the reagent bottles.

[0045] By sliding the reagent suction component 13 relative to the support 11, the reagent suction component 13 can move relative to the refrigeration component 12. As a result, when the user replaces the reagent bottle in the refrigeration component 12, the reagent suction component 13 moves away from the reagent bottle, and the user does not need to manually remove the reagent needle 131 from the reagent bottle, thus improving the user's experience in replacing the reagent bottle; shortening the time for the user to replace the reagent bottle, and avoiding the situation where the user operates in the refrigeration component 12 for a long time, which would affect the refrigeration efficiency of the refrigeration component 12.

[0046] Furthermore, since the limiting component 14 is disposed on the reagent suction component 13, it can move along with the reagent suction component 13 as it approaches the refrigeration component 12. Therefore, when the reagent needle 131 collects reagent from the reagent bottle, the limiting component 14 can fix the posture of the compartment door 121, thereby locking the compartment door 121 when the reagent needle 131 collects reagent. Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of the second embodiment of the sampling device of this application. By locking the door 121 with the limiting component 14, the normal operation of the sampling device 1 is reduced when the user opens the door 121 during the operation of the reagent sampling component 13, thereby improving the operating efficiency of the sampling device 1, enhancing the usability of the sampling device 1, and improving the user's experience with the sampling device 1.

[0047] Specifically, the reagent suction assembly 13 can slide relative to the support 11 to move closer to the refrigeration assembly 12, causing the first end of the reagent needle 131 to enter the reagent bottle in the refrigeration assembly 12. Simultaneously, the reagent suction assembly 13 drives the limiting assembly 14 to fix and lock the compartment door 121. When the reagent bottle needs to be replaced, the reagent suction assembly 13 slides relative to the support 11 to move away from the refrigeration assembly 12, causing the first end of the reagent needle 131 to move outside the reagent bottle. At the same time, the reagent suction assembly 13 drives the limiting assembly 14 away from the compartment door 121, releasing the compartment door 121. At this point, the user can open the compartment door 121 to replace the reagent bottle in the storage space.

[0048] In one embodiment, the sampling device 1 may count the number of times the reagent needle 131 collects reagent. When the number of times the reagent needle 131 collects reagent equals a preset number, the reagent bottle needs to be replaced accordingly, and the reagent sampling assembly 13 moves the limiting assembly 14 away from the refrigeration assembly 12. The preset number of times can be determined by the dosage of reagent in the reagent bottle and the maximum amount of reagent collected by the reagent needle 131 each time. In another embodiment, a liquid level detector may be installed in the accommodating space to detect the liquid level in the reagent bottle, etc., and this application does not impose any limitations on this.

[0049] When the number of times the reagent needle 131 collects the reagent is equal to the preset number, the sampling device 1 can issue an alarm to remind the user to replace the reagent bottle. The user can open the door 121 to replace the reagent bottle after controlling the reagent sampling component 13 away from the refrigeration component 12.

[0050] When the reagent needle 131 is inside the reagent bottle, the compartment door 121 is locked, preventing the user from opening the accommodating space. When the reagent needle 131 is removed from the reagent bottle, the limiting component 14 releases the compartment door 121, allowing the user to open the compartment door 121 to replace the reagent bottle in the accommodating space. This improves the safety and convenience of replacing the reagent bottle, enhances the practicality of the sampling device 1, and improves the user's experience with the sampling device 1.

[0051] Optionally, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of the third embodiment of the sampling device of this application. The sampling device 1 also includes a transmission assembly 15, and the reagent sampling assembly 13 also includes a movable slider 132. The reagent needle 131 is mounted on the movable slider 132. The movable slider 132 is disposed on the transmission assembly 15, and the movable slider 132 moves relative to the transmission assembly 15. The transmission assembly 15 is used to drive the movable slider 132 to move relative to the refrigeration assembly 12.

[0052] Specifically, the transmission assembly 15 can drive the movable slider 132 to move closer to the refrigeration assembly 12. Since the reagent needle 131 is mounted on the movable slider 132, the movable slider 132 drives the reagent needle 131 to move closer to the refrigeration assembly 12, so that the first end of the reagent needle 131 enters the reagent bottle of the refrigeration assembly 12. The reagent aspiration assembly 13 may also include a reagent needle fixing member 133, which is used to fix the second end of the reagent needle 131 to the movable slider 132, so that the reagent needle 131 can move when the movable slider 132 moves.

[0053] When the reagent bottle in the refrigeration component 12 needs to be replaced, the transmission component 15 drives the moving slider 132 to move away from the refrigeration component 12, so that the first end of the reagent needle 131 moves outside the reagent bottle. This eliminates the need for the user to move the reagent needle 131, improving the convenience of the user during the reagent bottle replacement process and enhancing the user's experience with the sampling device 1.

[0054] Optionally, please refer to the following: Figure 1 , Figure 2 and Figure 4 , Figure 4 This is a schematic diagram of the fourth embodiment of the sampling device of this application. The refrigeration assembly 12 also includes a refrigeration shell 122 with an opening. The refrigeration shell 122 forms the accommodating space for accommodating reagent bottles as described above. One end of the door 121 is rotatably connected to the refrigeration shell 122 to block the opening, thereby sealing the accommodating space and ensuring the refrigeration efficiency of the refrigeration assembly 12 for refrigerating the reagent bottles.

[0055] In one embodiment, the door 121 can be connected to the refrigerated housing 122 via a hinge. In other embodiments, the door 121 can also be connected to the refrigerated housing 122 via other rotating structures. This application does not impose any specific limitations on this.

[0056] Among them, such as Figure 2 and Figure 4 As shown, the door 121 is provided with a limiting slot 1211, and the limiting component 14 is set on the movable slider 132. During the process of the movable slider 132 driving the first end of the reagent needle 131 into the refrigerator shell 122, the movable slider 132 is also used to drive one end of the limiting component 14 into the limiting slot 1211 to fix the posture of the door 121.

[0057] Specifically, such as Figure 2 As shown, when the moving slider 132 moves the first end of the reagent needle 131 closer to the refrigerator shell 122, the moving slider 132 also moves the limiting component 14 closer to the limiting slot 1211. When the first end of the reagent needle 131 enters the refrigerator shell 122 and enters the reagent bottle, one end of the limiting component 14 enters the limiting slot 1211 to lock the door 121 in a fixed position.

[0058] And such Figure 3 As shown, when the user needs to replace the reagent bottle in the refrigerator housing 122, the sliding slider 132 moves the first end of the reagent needle 131 out of the reagent bottle. At the same time, the sliding slider 132 can move the limiting component 14 away from the limiting slot 1211 so that the limiting component 14 separates from the limiting slot 1211 and releases the restriction on the door 121. At this time, the user can open the door 121 to replace the reagent bottle in the refrigerator housing 122.

[0059] By cooperating with the limiting component 14 and the limiting slot 1211, the limiting component 14 can fix the posture of the compartment door 121. Furthermore, by mounting both the limiting component 14 and the reagent needle 131 on the movable slider 132, the limiting component 14 and the reagent needle 131 can move synchronously, ensuring that the limiting component 14 locks the compartment door 121 when the reagent needle 131 is in the reagent bottle. This improves the practicality of the sampling device 1 and enhances the user experience.

[0060] Optionally, the sampling device 1 further includes a valve assembly 16, one end of which is connected to the second end of the reagent needle 131, and the other end of which is connected to at least one reaction cell (not shown). The valve assembly 16 is used to open the pipeline between the reagent needle 131 and the reaction cell so that the reagent collected by the reagent needle 131 enters the reaction cell.

[0061] Among them, such as Figure 3As shown, valve assembly 16 is mounted on bracket 11, and the length of the tubing between valve assembly 16 and reagent needle 131 is less than the length of the tubing between valve assembly 16 and reaction cell. In the prior art, because valve assemblies are generally installed close to the reaction cell, the connecting tubing between reagent needle and valve assembly is relatively long, making it difficult to match the reagent collection time of the reagent needle with the opening time of the valve assembly, which affects the reagent delivery efficiency. In this embodiment, by mounting valve assembly 16 on bracket 11 and placing it close to reagent needle 131, the length of the tubing between valve assembly 16 and reagent needle 131 is shortened, thereby improving the delivery efficiency of reagent collected by reagent needle 131.

[0062] Optionally, in some embodiments, the valve assembly 16 may also be disposed on the movable slider 132, that is, the valve assembly 16 is stationary relative to the reagent needle 131, and the valve assembly 16 moves with the reagent needle 131 when the movable slider 132 drives the reagent needle 131 to move relative to the refrigeration assembly 12.

[0063] In the embodiment where the valve assembly 16 is mounted on the bracket 11 and the reagent needle 131 moves relative to the valve assembly 16, in the embodiment where the valve assembly 16 is disposed on the movable slider 132, the valve assembly 16 can move along with the reagent needle 131. That is, the valve assembly 16 and the reagent needle 131 are relatively stationary, which can shorten the tubing length between the valve assembly 16 and the reagent needle 131. There is no need to reserve a section of tubing between the valve assembly 16 and the reagent needle 131 to allow the relative position movement between the reagent needle 131 and the valve assembly 16.

[0064] In contrast to the embodiment where the valve assembly 16 is mounted on the sliding slider 132 and moves relative to the reaction cell, in the embodiment where the valve assembly 16 is mounted on the bracket 11, the valve assembly 16 and the reaction cell are relatively stationary. That is, the length of the pipeline between the valve assembly 16 and the reaction cell can be shortened, and there is no need to reserve a pipeline between the reaction cell and the reagent needle 131 to allow the relative position movement between the reagent needle 131 and the reaction cell.

[0065] In this embodiment, since the sample analyzer may contain at least one reaction cell, specifically, in the case where the valve assembly 16 is mounted on the movable slider 132 and moves relative to the reaction cell, a relatively long section of pipe needs to be reserved between the valve assembly 16 and the reaction cell to allow for relative positional movement. Furthermore, the distance between the valve assembly 16 and the reaction cell in the sample analyzer may be considerable. Therefore, when the relative position between the valve assembly 16 and the reaction cell changes, the pipe between them may bend or deform, potentially causing collisions between the pipe and the device, thus affecting the device's operating efficiency. Moreover, the safety of the pipe cannot be guaranteed, as it may break, leading to a risk of leakage.

[0066] Therefore, the preferred embodiment of this application is in which the valve assembly 16 is mounted on the bracket 11 and is stationary relative to the reaction tank. Since both the valve assembly 16 and the reagent needle 131 are mounted on the bracket 11, the deformation between the pipelines is controllable, which can ensure the safety of the pipelines.

[0067] In other embodiments, the user may set the position of the valve assembly 16 according to the requirements and the actual internal structure of the sample analyzer, and this application does not impose specific restrictions on this.

[0068] Optionally, the refrigeration housing 122 is provided with at least one needle insertion position 1221 on the side near the reagent aspiration assembly 13. Then, the first end of the reagent needle 131 can enter the refrigeration housing 122 through the needle insertion position 1221 to collect the reagent in the reagent bottle.

[0069] The needle insertion point 1221 is located directly above the reagent bottle, allowing the reagent needle 131 to enter the reagent bottle through the needle insertion point 1221. The number of needle insertion points 1221 corresponds to the number of reagent bottles within the refrigeration housing 122. Furthermore, the number of reagent needles 131 can also correspond to the number of reagent bottles, ensuring that each reagent needle 131 collects reagent from its corresponding reagent bottle, reducing the possibility of reagent contamination.

[0070] The sampling device 1 may also include a sealing sleeve 17, which is disposed on the needle insertion position 1221 and located in the accommodating space at the first end of the reagent needle 131. The sealing sleeve 17 is located between the needle insertion position 1221 and the reagent needle 131.

[0071] Specifically, since the refrigeration component 12 is used to refrigerate the reagent, when the first end of the reagent needle 131 is located in the accommodating space, the temperature of the first end of the reagent needle 131 will decrease with the temperature of the refrigeration component 12. The temperature in the refrigeration component 12 will be lower than the room temperature, so the temperature of the first end of the reagent needle 131 will gradually be transferred to the second end of the reagent needle 131. When the second end of the reagent needle 131 comes into contact with the ambient room temperature, condensation will be generated at the second end of the reagent needle 131. The condensation will flow along the reagent needle 131 from the second end to the first end of the reagent needle 131. Due to the presence of the sealing sleeve 17, after the condensation flows to the position of the sealing sleeve 17, since the sealing sleeve 17 is located between the reagent needle 131 and the needle insertion position 1221, the sealing sleeve 17 will block the condensation, and the condensation will not continue to flow along the reagent needle 131.

[0072] In one embodiment, if the sealing sleeve 17 is not provided, the condensate will flow along the reagent needle 131 to the first end of the reagent needle 131 and enter the reagent bottle, contaminating the reagent in the reagent bottle.

[0073] In this embodiment, by setting the sealing sleeve 17, condensate can be blocked, preventing condensate from entering the reagent bottle and contaminating the reagent in the reagent bottle, thereby improving the safety of the reagent in the reagent bottle and improving the practicality of the sampling device 1.

[0074] Optionally, the transmission assembly 15 includes a timing belt 151, a linear guide rail 152, and a motor 153.

[0075] The synchronous belt 151, linear guide rail 152, and motor 153 are all mounted on the bracket. The extension direction of the synchronous belt 151 is parallel to the extension direction of the reagent needle 131, and the extension direction of the linear guide rail 152 is parallel to the extension direction of the reagent needle 131. The synchronous belt 151 and the linear guide rail 152 are spaced apart, and the motor 153 is connected to the synchronous pulley on the synchronous belt 151.

[0076] One end of the movable slider 132 is connected to the timing belt 151, and the movable slider 132 is slidably disposed on the linear guide rail 152. The motor 153 is used to drive the timing belt 151 to drive the movable slider 132 to move relative to the refrigeration component 12 along the linear guide rail 152, so that the movable slider 132 drives the reagent needle 131 to move relative to the refrigeration component 12 in the extension direction of the reagent needle 131.

[0077] Specifically, since the extension direction of the timing belt 151 is parallel to the extension direction of the reagent needle 131, the extension direction of the linear guide 152 is parallel to the extension direction of the reagent needle 131, and the extension direction of the timing belt 151 is parallel to the extension direction of the linear guide 152, the timing belt 151 and the linear guide 152 cooperate to drive the moving slider 132 to move relative to the refrigeration component 12 in the extension direction of the reagent needle 131, and the moving slider 132 drives the reagent needle 131 to move in the extension direction of the reagent needle 131.

[0078] Among them, such as Figure 1 As shown, the extension direction of the reagent needle 131 can be parallel to the direction of gravity. Therefore, the extension directions of the synchronous belt 151 and the linear guide rail 152 are both parallel to the direction of gravity. This allows the slider 132 to move the reagent needle 131 vertically into the refrigeration assembly 12, thereby improving the accuracy of the reagent needle 131's movement and preventing the reagent needle 131 from colliding with the housing of the refrigeration assembly 12 and being damaged.

[0079] Optionally, the sampling device 1 may further include a positioning detection component 18, which is spaced apart from the timing belt 151, for detecting when the moving slider 132 drives the reagent needle 131 into the refrigeration component 12 and into position, and when the moving slider 132 drives the reagent needle 131 out of the refrigeration component 12 and into position.

[0080] Specifically, the positioning detection component 18 may include an optical coupler baffle and two optical couplers. The two optical couplers are respectively positioned next to the synchronous belt 151 at corresponding locations. The optical coupler baffle is positioned on the synchronous belt 151, or on the moving slider 132 positioned at the end of the synchronous belt 151. Thus, when the synchronous belt 151 drives the moving slider 132 relative to the refrigeration component 12, when the optical coupler baffle enters the lower optical coupler, the optical coupler can respond to the moving slider 132 by moving the reagent needle 131 into the refrigeration component 12 and into position. When the optical coupler baffle enters the upper optical coupler, the optical coupler can respond to the moving slider 132 by moving the reagent needle 131 out of the refrigeration component 12 and into position. This improves the accuracy of the reagent needle 131's movement, preventing the reagent needle 131 from descending excessively and colliding with the bottom of the reagent bottle, damaging the needle tip; or preventing the reagent needle 131 from rising insufficiently, thus affecting the user's reagent bottle replacement efficiency.

[0081] In other embodiments, the position detection component 18 may also be other structures, which can be set according to user needs, and this application does not impose specific restrictions on them.

[0082] Optionally, the sampling device 1 may also include a door detection component (not shown), which is disposed on the refrigeration housing 122 and spaced apart from the door 121, for detecting the posture of the door 121.

[0083] The door detection component is disposed on the refrigeration shell 122 and spaced apart from the door 121. In one embodiment, the door detection component can be a limit switch. When the door 121 is closed, the door 121 can contact the limit switch, and the limit switch can respond to the door 121 closing. When the door 121 does not contact the limit switch, the limit switch can respond to the door 121 opening.

[0084] The door detection component can cooperate with the position detection component 18. If the position detection component 18 fails to respond to the sliding block 132 to move the reagent needle 131 out of the refrigeration component 12 and into position, and the door detection component responds to the door 121 opening, the sampling device 1 can issue an alarm to remind the user that the test process in the sample analyzer is not yet complete and the reagent bottle cannot be replaced. This improves the safety of the sampling device 1 and prevents the user from replacing the reagent bottle before the reagent needle 131 has detached from the reagent bottle, thus avoiding damage to the reagent needle 131.

[0085] Furthermore, the testing process can be initiated only after the door detection component detects that the door 121 is closed, thereby improving the safety and efficiency of the testing process.

[0086] In one embodiment, the door detection component may also be an optocoupler structure, etc., and this application does not impose specific limitations on it.

[0087] In summary, in the sampling device 1 of this application, by sliding the reagent sampling component 13 and the support 11, the reagent sampling component 13 can move relative to the refrigeration component 12. Thus, during the process of the user replacing the reagent bottle in the refrigeration component 12, the reagent sampling component 13 moves away from the reagent bottle, and the user does not need to manually remove the reagent needle 131 from the reagent bottle, improving the user's experience in replacing the reagent bottle; shortening the time for the user to replace the reagent bottle, and avoiding the situation where the user operates in the refrigeration component 12 for a long time, which affects the refrigeration efficiency of the refrigeration component 12.

[0088] Furthermore, since the limiting component 14 is located on the reagent aspiration component 13, it can move closer to the refrigeration component 12 as the reagent aspiration component 13 moves. When the reagent needle 131 collects the reagent from the reagent bottle, the limiting component 14 connects with the limiting slot 1211 on the door 121. This locks the door 121 when the reagent needle 131 collects the reagent, preventing the user from opening the door 121 during the operation of the reagent aspiration component 13 and affecting the normal operation of the aspiration device 1. This improves the operating efficiency of the aspiration device 1, enhances its usability, and improves the user experience.

[0089] This application also provides a sample analyzer (not shown), which includes a sampling device 1, at least one reaction cell and a detection device. The sampling device is connected to the reaction cell and is used to provide reagents from a reagent bottle to the reaction cell to obtain a sample to be tested in the reaction cell. The detection device is spaced apart from the reaction cell and is used to detect the sample to be tested in the reaction cell.

[0090] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A sample suction device, characterized in that, include: support; A refrigeration assembly, mounted on the bracket, has a receiving space for holding reagent bottles; wherein the refrigeration assembly includes a door for sealing the receiving space; A reagent sampling assembly is slidably mounted on the support and includes a reagent needle for collecting reagents from reagent bottles in the refrigeration assembly. A limiting component is disposed on the reagent aspiration component, and the limiting component is used to fix the posture of the compartment door when the reagent needle collects the reagent in the reagent bottle at the first end.

2. The sampling device according to claim 1, characterized in that, The sampling device further includes a transmission assembly, and the reagent sampling assembly further includes a movable slider. The reagent needle is mounted on the movable slider, and the movable slider is disposed on the transmission assembly, with the movable slider sliding relative to the transmission assembly. The transmission component is used to drive the movable slider to move relative to the refrigeration component.

3. The sampling device according to claim 2, characterized in that, The refrigeration assembly also includes a refrigeration shell with an opening, the refrigeration shell forming the accommodating space, and one end of the door being rotatably connected to the refrigeration shell to cover the opening; The door is provided with a limiting slot, and the limiting component is disposed on the movable slider. During the process of the movable slider driving the first end of the reagent needle into the refrigeration shell, the movable slider is also used to drive one end of the limiting component into the limiting slot to fix the posture of the door.

4. The sampling device according to claim 1, characterized in that, The sampling device further includes a valve assembly, one end of which is connected to the second end of the reagent needle, and the other end of which is connected to at least one reaction cell. The valve assembly is used to open the pipeline between the reagent needle and the reaction cell so that the reagent collected by the reagent needle enters the reaction cell. The valve assembly is mounted on the bracket, and the length of the tubing between the valve assembly and the reagent needle is less than the length of the tubing between the valve assembly and the reaction cell.

5. The sampling device according to claim 2, characterized in that, The sampling device further includes a valve assembly, one end of which is connected to the second end of the reagent needle, and the valve assembly is mounted on the movable slider. When the movable slider moves the reagent needle relative to the refrigeration assembly, the valve assembly moves along with the reagent needle.

6. The sampling device according to claim 3, characterized in that, The refrigeration housing has at least one needle insertion point on the side near the reagent aspiration assembly, and the first end of the reagent needle enters the accommodating space through the needle insertion point; The sampling device further includes a sealing sleeve, which is disposed on the needle insertion position, with the first end of the reagent needle located within the accommodating space, and the sealing sleeve located between the needle insertion position and the reagent needle.

7. The sampling device according to claim 2, characterized in that, The transmission assembly includes a timing belt, a linear guide rail, and a motor; the timing belt, the linear guide rail, and the motor are all mounted on the bracket. The extension direction of the synchronous belt is parallel to the extension direction of the reagent needle, the extension direction of the linear guide rail is parallel to the extension direction of the reagent needle, the synchronous belt and the linear guide rail are spaced apart, and the motor is connected to the synchronous pulley on the synchronous belt. One end of the movable slider is connected to the timing belt, and the movable slider is slidably disposed on the linear guide rail. The motor is used to drive the timing belt transmission to drive the movable slider to move relative to the refrigeration assembly along the linear guide rail, so that the movable slider drives the reagent needle to move relative to the refrigeration assembly in the extension direction of the reagent needle.

8. The sampling device according to claim 7, characterized in that, The sampling device also includes a positioning detection component, which is spaced apart from the timing belt and is used to detect when the moving slider drives the reagent needle into the refrigeration component and into position, and when the moving slider drives the reagent needle out of the refrigeration component and into position.

9. The sampling device according to claim 3, characterized in that, The sampling device also includes a door detection component, which is disposed on the refrigeration shell and spaced apart from the door, for detecting the posture of the door.

10. A sample analyzer, characterized in that, The sample analyzer includes a sampling device as described in any one of claims 1-9, at least one reaction cell, and a detection device. The sampling device is connected to the at least one reaction cell and is used to provide reagents from a reagent bottle to the at least one reaction cell to obtain a sample to be tested in the reaction cell. The detection device is spaced apart from the at least one reaction cell and is used to detect the sample to be tested.

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