Sample introduction system and sample introduction method

By using the recovery component and the side push component to limit the sample rack, and utilizing the reversing space to achieve the transfer and recovery of the sample rack, the problem of sample rack displacement during sampling is solved, and the efficiency and space utilization of the sample introduction system are improved.

CN115892965BActive Publication Date: 2025-10-31ZYBIO INC
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Patent Information

Application Number
CN202211624932.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-16
Publication Date
2025-10-31
Estimated Expiration
2042-12-16

AI Technical Summary

Technical Problem

In existing sample introduction systems, the sample holder is prone to displacement due to instrument vibration during sampling, requiring additional limiting mechanisms, which consumes system resources and space and affects efficiency.

Method used

The sample rack is limited by a combination of a recyclable component and a side pusher, and the sample rack is transferred and reclaimed through a reversing space, avoiding additional limiting components. The reversing space is used to bypass the other side of the sample rack and push it into the recycling channel.

Benefits of technology

It improves the efficiency of the sample introduction system, saves space and resources, simplifies the component layout, and avoids the additional occupation of the system by the limiting mechanism.

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Abstract

This invention discloses a main sample introduction system and a sample introduction method. The sample introduction system includes a base and a pushing device. The base has a transfer channel, a retrieval channel, and a reversing space. The transfer channel and the retrieval channel are connected. The reversing space is located on one side of the transfer channel and the retrieval channel and is connected to the transfer channel and the retrieval channel. The pushing device is connected to the base and includes a side pusher and a retrieval member. The side pusher is movably disposed within the transfer channel to push the sample holder along the transfer channel. The retrieval member is movably disposed within the retrieval channel to push the sample holder along the retrieval channel. When the retrieval member approaches the transfer channel, it cooperates with the side pusher to limit the sample holder, or the retrieval member enters the transfer channel through the reversing space and pushes the sample holder into the retrieval channel. This application achieves the functions of limiting and retrieving through the retrieval member, avoiding the additional space and time occupation caused by setting up a separate limiting member, improving system efficiency, saving space and energy, and facilitating the arrangement of components within the sample introduction system.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a sample introduction system and sample introduction method. Background Technology

[0002] Currently, most sample introduction systems on the market use a push-type method to transfer the sample holder. When the sample holder is stationary for sampling, other internal structures of the instrument are still working, which inevitably causes vibration. To prevent abnormal displacement of the sample holder, it is often necessary to set up a limiting mechanism in the system to restrict the displacement of the sample holder. The additional limiting mechanism will occupy more system control resources, making the system less efficient, and it will also occupy space in the sample introduction system, making it inconvenient for the arrangement of other devices. Summary of the Invention

[0003] The main objective of this invention is to provide a sample introduction system that aims to improve system efficiency and save space and resources.

[0004] To achieve the above objectives, the sample introduction system proposed in this invention includes:

[0005] The machine base is provided with a transfer channel, a retrieval channel, and a reversing space. The transfer channel and the retrieval channel are connected. The reversing space is located on one side of the transfer channel and the retrieval channel and is connected to the transfer channel and the retrieval channel. A pushing device is connected to the machine base. The pushing device includes a side pusher and a retrieval member. The side pusher is movably disposed within the transfer channel to push the sample rack along the transfer channel. The retrieval member is movably disposed within the retrieval channel to push the sample rack along the retrieval channel.

[0006] When the retrieval component approaches the transfer channel, it cooperates with the side pusher to limit the sample rack, or the retrieval component enters the transfer channel through the reversing space and pushes the sample rack from the transfer channel into the retrieval channel.

[0007] In one embodiment, the base is provided with a sample inlet platform, the transfer channel and the recovery channel are located on the sample inlet platform, and the reversing space is located below the sample inlet platform;

[0008] The sample introduction platform is provided with a recovery track groove corresponding to the recovery channel. The recovery track groove extends along the recovery channel. The recovery component is located in the recovery track groove. Part of the recovery track groove is located in the transfer channel to connect the transfer channel, the recovery channel and the reversing space.

[0009] In one embodiment, the recycling component has a recycling part and a first limiting part, the recycling part and the first limiting part are arranged opposite to each other, the recycling part is used to push the sample rack, the sample rack is correspondingly provided with a second limiting part, and the first limiting part is used to abut against and limit the second limiting part.

[0010] In one embodiment, the base is provided with a recycling guide rail extending along the recycling channel, and the pushing device includes a recycling assembly, the recycling assembly comprising:

[0011] A recycling drive unit, the recycling drive unit being connected to the base;

[0012] A recovery base, slidably connected to the recovery guide rail, a recovery drive connected to the recovery base and driving the recovery base to move along the recovery guide rail; and a recovery lifting drive connected to the recovery base, with its output end connected to the recovery component, to drive the recovery component through the sample feeding platform and into and out of the transfer channel and the recovery channel.

[0013] In one embodiment, the base is further provided with a sample inlet channel, the sample inlet channel, the transfer channel and the recovery channel are connected in sequence, and the pushing device further includes a sample inlet element, which is movably disposed in the sample inlet channel to push the sample holder to move along the sample inlet channel;

[0014] The sample inlet channel and the recovery channel are both set at an angle to the transfer channel.

[0015] In one embodiment, the sample introduction system further includes a blocking component, the blocking component comprising:

[0016] A blocking and lifting drive is connected to the base; and a blocking member is located at the outlet of the sample inlet channel and connected to the blocking and lifting drive. The blocking and lifting drive is used to drive the blocking member in and out of the sample inlet channel to block or release the sample holder in the sample inlet channel.

[0017] In one embodiment, the base is provided with a sample inlet guide rail extending along the sample inlet channel, and the pushing device includes a sample inlet assembly, the sample inlet assembly comprising:

[0018] The sample injection drive is connected to the base; and the sample injection base is connected to the sample injection guide rail. The sample injection drive is connected to the sample injection base and drives the sample injection base to move along the sample injection guide rail. The sample injection base is equipped with a thrust sensor, and the sample injection component is retractably connected to the sample injection base.

[0019] A spring is provided between the sample injector and the sample injector base. When the spring is compressed, the sample injector triggers the thrust sensor, and the sample injector moves away from the sample holder.

[0020] In one embodiment, the base is further provided with a transfer drive, which is connected to the side pusher and drives the side pusher to move along the transfer channel. The transfer drive is also provided with a positioning encoder to control the start and stop of the side pusher at a preset position.

[0021] In one embodiment, the sample introduction system further includes an emergency channel, which is arranged in parallel with the transfer channel. A bracket is movably provided in the emergency channel to support the sample holder as it moves along the emergency channel.

[0022] The present invention also proposes a sample introduction method using the sample introduction system as described in any of the above claims, wherein the transfer channel is provided with a sampling position, and the sample introduction method includes:

[0023] Receive arrival signal;

[0024] The recovery component is controlled to approach and abut against the sample holder, so that the recovery component and the side pusher limit the sample holder to the sampling position;

[0025] Obtain the sampling end signal;

[0026] The system controls the recyclable component to enter the transfer channel through the reversing space and pushes the sample rack into the recycling channel.

[0027] In one embodiment, the transfer channel is further provided with a detection position, the sample rack is provided with a plurality of sample slots arranged in sequence for accommodating sample containers, and the side pusher is connected to a positioning code disk. Before the step of obtaining the positioning signal, the method further includes:

[0028] The control side pusher moves the sample holder along the transfer channel and keeps a sample slot at the detection position;

[0029] Detect whether there is a sample container in the sample slot;

[0030] When a sample container is detected in the sample slot, the control side pusher pushes the sample rack to the sampling position, and the positioning code generates an arrival signal;

[0031] When no sample container is detected in the sample slot, the control side pusher pushes the sample rack to move, so that the next sample slot stops at the detection position.

[0032] In one embodiment, after the step of controlling the retrieval member to approach and abut against the sample holder, so that the retrieval member and the side pusher limit the sample holder to the sampling position, the method further includes:

[0033] Obtain the signal indicating that sampling of the sample container is complete;

[0034] Control the reset of the recovered component;

[0035] The side pusher controls the movement of the sample holder;

[0036] Return to the steps for obtaining the position signal;

[0037] Repeat the above steps until all sample containers have been sampled.

[0038] In one embodiment, the recycling channel is provided with a recycling area. After controlling the recycled component to enter the transfer channel through the reversing space and pushing the sample holder into the recycling channel, the method further includes:

[0039] The control unit pushes the sample rack along the recycling channel to the recycling area;

[0040] Control the recovered component to reset to its initial position.

[0041] In one embodiment, the sample introduction system includes a sample introduction channel, a sample introduction element is provided within the sample introduction channel, and a blocking element is provided at the outlet of the sample introduction channel. Prior to the step of obtaining the positioning signal, the system further includes:

[0042] Acquire the injection signal;

[0043] The injection device is controlled to push the sample holder in the injection channel toward the transfer channel;

[0044] Check whether there are sample racks in the transfer channel;

[0045] When a sample rack is detected in the transfer channel, the blocking device is controlled to prevent the sample rack from moving into the transfer channel;

[0046] When no sample holder is detected in the transfer channel, the blocking member is moved away from the movement path of the sample holder, and the sample feeding member is controlled to push the sample holder into the transfer channel.

[0047] In one embodiment:

[0048] A side-pushing device is provided, the side-pushing device being disposed on one side of the sample inlet channel, the sample inlet channel being provided with an anti-tipping strip, and the sample holder being provided with an anti-tipping groove. Prior to the step of controlling the sample inlet component to push the sample holder within the sample inlet channel toward the transfer channel, the method further includes:

[0049] The control side push device pushes the sample rack, causing the anti-tipping strip to engage in the anti-tipping groove;

[0050] Control side push component reset.

[0051] The technical solution of this invention uses a retrieval component and a side-pushing component to limit the sample holder. When the sample holder needs to be retrieved, the retrieval component enters the transfer channel through a reversing space, that is, it bypasses the sample holder to the other side of the sample holder, and pushes the sample holder from the other side into the retrieval channel. This application achieves the functions of limiting and retrieving through the retrieval component, avoiding the additional space and time occupation caused by setting up a separate limiting component, improving system efficiency, saving system space and energy, and making the components in the sample introduction system easier to arrange. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0053] Figure 1 This is a top view of an embodiment of the sample introduction system of the present invention;

[0054] Figure 2 for Figure 1 A schematic diagram of the intermediate sample introduction system from another perspective;

[0055] Figure 3 for Figure 1 Another structural schematic diagram of the intermediate sample introduction system;

[0056] Figure 4 This is a partial structural diagram of the emergency channel of the sample introduction system of the present invention;

[0057] Figure 5 This is a schematic diagram of the internal structure of the base of the present invention;

[0058] Figure 6 This is a schematic diagram of the structure of one embodiment of the recyclable component of the present invention;

[0059] Figure 7 for Figure 6 Another structural diagram of the recycled parts;

[0060] Figure 8 This is a schematic diagram of the sample holder of the present invention.

[0061] Explanation of icon numbers:

[0062]

[0063]

[0064] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0065] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0066] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0067] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0068] To improve system efficiency and save system space and resources, this invention proposes a sample introduction system 100.

[0069] Reference Figures 1 to 7 In some embodiments of this application, the sample introduction system 100 includes:

[0070] The base 1 is provided with a transfer channel 11b, a recovery channel 11c, and a reversing space 11e. The transfer channel 11b and the recovery channel 11c are connected. The reversing space 11e is located on one side of the transfer channel 11b and the recovery channel 11c and is connected to the transfer channel 11b and the recovery channel 11c.

[0071] The pushing device 3 is connected to the base 1. The pushing device 3 includes a side pusher 33 and a retrieval member 357. The side pusher 33 is movably disposed in the transfer channel 11b to push the sample rack 200 to move along the transfer channel 11b. The retrieval member 357 is movably disposed in the retrieval channel 11c to push the sample rack 200 to move along the retrieval channel 11c.

[0072] When the recovery component 357 approaches the transfer channel 11b, it cooperates with the side pusher 33 to limit the sample rack 200, or the recovery component 357 enters the transfer channel 11b through the reversing space 11e and pushes the sample rack 200 from the transfer channel 11b into the recovery channel 11c.

[0073] In one embodiment, the base 1 has a transfer channel 11b and a retrieval channel 11c. The sample holder 200 is placed into the transfer channel 11b manually or by machine. Typically, the transfer channel 11b is surrounded by devices for operations such as detection or sampling. The side pusher 33 pushes the sample holder 200 to move within the transfer channel 11b or stops the sample holder 200 at a certain point for detection or sampling. The transfer channel 11b and the retrieval channel 11c are connected. After completing a series of operations, the sample holder 200 enters the retrieval channel 11c from the transfer channel 11b. The retrieval device 357 drives the sample holder 200 to move along the retrieval channel 11c until the sample holder 200 enters a fixed area, waiting to be retrieved.

[0074] Specifically, a sampling position is provided at one end of the transfer channel 11b connected to the recovery channel 11c. A sampling needle is provided above the sampling position. When the side pusher 33 pushes the sample holder 200 to the sampling position, the side pusher 33 stops moving, and the sample holder 200 stops moving accordingly, waiting for the sampling needle to take a sample. When the sample holder 200 stops, other components of the sample introduction system 100 are still operating continuously. The resulting vibration can easily cause the sample holder 200 to shift, and cause the sampling needle to fail to accurately insert into the sample container of the sample holder 200, resulting in sampling failure. In severe cases, it may even damage the sampling needle and the sample container.

[0075] To avoid the above situation, when the sample rack 200 reaches the sampling position, the recovery component 357 approaches the sample rack 200 along the recovery channel 11c until it comes into contact with the sample rack 200. At this time, the recovery component 357 and the side push component 33 cooperate to limit the sample rack 200, making it difficult for it to move and ensuring that the sampling operation is carried out smoothly.

[0076] Optionally, in one possible scenario, the retrieval channel 11c is linearly connected to the transfer channel 11b. When the sample holder 200 is in the sampling position, the side pusher 33 is located at one end of the sample holder 200, and the retrieval member 357 approaches the sample holder 200 from the other end. The retrieval member 357 and the side pusher 33 are respectively used to limit the movement of the sample holder 200 at opposite ends. Figure 1In another possible scenario, the retrieval channel 11c and the transfer channel 11b are set at an angle to each other. In this case, when the sample holder 200 is in the sampling position, the side pusher 33 is located at one end of the sample holder 200, and one side of the sample holder 200 faces the retrieval channel 11c. The retrieval member 357 is used to connect the side of the sample holder 200 and cooperates with the side pusher 33 located at one end of the sample holder 200 to limit the sample holder 200.

[0077] After sampling is completed, the sample rack 200 needs to be moved from the transfer channel 11b to the recycling channel 11c to free up space at the sampling position so that the next sample rack 200 can enter the sampling position for sampling.

[0078] In this embodiment, on one side of the recycling channel 11c and the transfer channel 11b, the base 1 forms a reversing space 11e. Through the reversing space 11e, the recycled component 357 bypasses the sample rack 200 and enters the transfer channel 11b, and then drives the sample rack 200 from the transfer channel 11b into the recycling channel 11c.

[0079] Optionally, the reversing space 11e can be located below the recycling channel 11c and the transfer channel 11b. The recycling component 357 can first descend, then pass through the reversing space 11e to the other side of the sample rack 200, and then the recycling component 357 rises into the transfer channel 11b. Then the recycling component 357 moves towards the recycling channel 11c, which can then drive the sample rack 200 into the recycling channel 11c.

[0080] Of course, in some other alternative embodiments, the reversing space 11e may also be located above the recycling channel 11c and the transfer channel 11b, with the recycling component 357 suspended in the air. After rising and translating, it descends and transfers to the other side of the sample rack 200, and drives the sample rack 200 into the recycling channel 11c.

[0081] Alternatively, the reversing space 11e can be located around the recycling channel 11c and the transfer channel 11b. The recycling component 357 moves roughly in a "U" shape from the reversing space 11e on one side and enters the transfer channel 11b, and drives the sample rack 200 into the recycling channel 11c from the other side of the sample rack 200.

[0082] Understandably, the three alternative embodiments of the commutation space 11e described above are applicable to the two possible scenarios described above.

[0083] The technical solution of this invention uses the cooperation of the recovery component 357 and the side pusher 33 to limit the sample rack 200. When the sample rack 200 needs to be recovered, the recovery component 357 enters the transfer channel 11b through the reversing space 11e, that is, it bypasses the sample rack 200 to the other side of the sample rack 200, and pushes the sample rack 200 from the other side of the sample rack 200 into the recovery channel 11c. In other words, this application achieves the functions of limiting and recovering simultaneously through the recovery component 357, avoiding the additional space and time occupation caused by setting up a separate limiting component, improving system efficiency, saving space and energy, and making the components within the sample introduction system 100 easier to arrange.

[0084] Reference Figures 1 to 3 In one embodiment, the base 1 is provided with a sample feeding platform 11, a transfer channel 11b and a recovery channel 11c are provided on the sample feeding platform 11, and a reversing space 11e is provided below the sample feeding platform 11; the sample feeding platform 11 is provided with a recovery track groove 115 corresponding to the recovery channel 11c, the recovery track groove 115 extends along the recovery channel 11c, the recovery component 357 is provided in the recovery track groove 115, and part of the recovery track groove 115 is provided in the transfer channel 11b to connect the transfer channel 11b, the recovery channel 11c and the reversing space 11e.

[0085] In this embodiment, the base 1 includes a base and a sample injection platform 11. The base is used for fixing, and the sample injection platform 11 is disposed on the base. A reversing space 11e is formed between the base and the sample injection platform 11. The sample injection platform 11 is an integral platform, and its upper part is recessed to form a recovery channel 11c and a transfer channel 11b to support the sample holder 200 moving on it.

[0086] Reference Figure 2 and Figure 3 The sample feeding platform 11 is provided with a recovery track groove 115, which is arranged in a strip shape. The recovery component 357 is installed on the base. Part of the structure of the recovery component 357 can enter the recovery channel 11c and the transfer channel 11b through the recovery track groove 115 and move along the extension direction of the recovery track groove 115.

[0087] For example, in this embodiment, most of the recovery track groove 115 is located within the recovery channel 11c to ensure that the recovery component 357 has sufficient range of motion within the recovery channel 11c. One end of the recovery track groove 115 extends from the recovery channel 11c into the transfer channel 11b, ensuring that part of the structure of the recovery component 357 can enter the recovery channel 11c from the transfer channel 11b along the recovery track groove 115. In this way, the recovery component 357 can move the sample holder 200 from the transfer channel 11b into the recovery channel 11c.

[0088] By placing the reversing space 11e below the sample introduction platform 11, the space occupied by the sample introduction system 100 is fully utilized. While realizing the limiting and recovery functions of the recovery component 357, the sample introduction platform 11 is kept tidier and facilitates the movement of the sample rack 200.

[0089] Reference Figure 6 , Figure 7 and Figure 8 The recycling component 357 is provided with a recycling part 3571 and a first limiting part 3573. The recycling part 3571 and the first limiting part 3573 are arranged opposite to each other. The recycling part 3571 is used to push the sample rack 200. The sample rack 200 is provided with a corresponding second limiting part 202. The first limiting part 3573 is used to abut against and limit the second limiting part 202.

[0090] In one embodiment, the second limiting part 202 is provided on one side of the sample rack 200. When the sample rack 200 is in the sampling position, the recovery part 357 moves toward the sample rack 200, so that the first limiting part 3573 can abut against the second limiting part 202, thereby restricting the movement of the sample rack 200.

[0091] Optionally, the sample rack 200 is provided with a plurality of sample slots 201 for placing sample containers, and the sample rack 200 is provided with a second limiting part 202 for each sample slot 201. As the sample rack 200 moves forward, the plurality of sample slots 201 pass through the sampling position in sequence, and the first limiting part 3573 abuts against the plurality of second limiting parts 202 in sequence, thereby ensuring the stability of the sample rack 200 during operation and preventing displacement.

[0092] Optionally, the sample holder 200 is provided with a limiting hole, and the second limiting part 202 is a limiting boss, which is disposed in the limiting hole; the first limiting part 3573 can extend into the limiting hole and abut against the side of the limiting boss away from the side pusher 33. This ensures that the second limiting part 202 does not protrude from the side of the sample holder 200, avoiding interference between multiple sample holders 200 when stacked, which could cause the sample holders 200 to tip over.

[0093] Furthermore, the first limiting part 3573 is provided with a first surface, which is inclined towards the transfer channel 11b. A limiting boss protrudes from the side wall of the limiting hole and is provided with a second surface, which is inclined. The first surface is used to abut against the second surface. The first limiting part 3573 and the second limiting part 202 achieve limiting cooperation through the abutment of the first surface and the second surface. In this embodiment, the retrieval part 357 moves vertically towards or away from the transfer channel 11b. If, due to some manufacturing errors, the length of a certain limiting boss on the sample holder 200 is insufficient, causing the first surface and the second surface, which were originally able to abut against each other, to be separated, in this case, simply moving the retrieval part 357 slightly towards the transfer channel 11b will allow the first surface and the second surface to abut against each other again.

[0094] This embodiment improves the compatibility and applicability of the cooperation between the second limiting part 202 and the first limiting part 3573 by using the inclined second surface and the first surface.

[0095] Understandably, when the sample holder 200 is provided with multiple sample slots 201, each sample slot 201 is provided with one of the aforementioned clearance holes. For example, a clearance hole is provided on one side of a sample slot 201, and multiple clearance holes and multiple sample slots 201 are staggered along the extension direction of the transfer channel 11b.

[0096] The limiting hole can be a square hole for easy processing. The position of the limiting boss is not limited. The limiting boss can extend from the top wall, side wall or bottom wall of the limiting hole.

[0097] Reference Figure 7 In some embodiments, the end of the recyclable part 357 is bent to form a first limiting portion 3573 so as to abut and limit it with the second limiting portion 202.

[0098] Of course, in other embodiments of this application, the recyclable component 357 may also use a clamping method to restrict the movement of the sample holder 200, which will not be elaborated here.

[0099] In this configuration, the recovery unit 3571 is located opposite to the first limiting unit 3573, so that after the recovery component 357 enters the transfer channel 11b from the reversing space 11e, the recovery unit 3571 drives the sample holder 200 to move. (Refer to...) Figure 6 and Figure 7 In one embodiment, the recovery section 3571 is an elongated strip to more stably abut and push the sample holder 200.

[0100] Optionally, the recycling component 357 is an integral structure, and the recycling part 3571 and the first limiting part 3573 are different parts on opposite sides of the same structural component. The structure is simple, has strong integrity, and is easy to process.

[0101] Reference Figure 7 and Figure 8 In one embodiment, the base 1 is provided with a recycling guide rail 17 extending along the recycling channel 11c, and the pushing device 3 includes a recycling assembly 35, which includes:

[0102] Recycle drive unit 351, and recycle drive unit 351 is connected to base 1;

[0103] A recycling base 353 is slidably connected to a recycling guide rail 17. A recycling drive unit 351 is connected to the recycling base 353 and drives the recycling base 353 to move along the recycling guide rail 17.

[0104] The recovery lifting drive 355 is connected to the recovery base 353, and the output end of the recovery lifting drive 355 is connected to the recovery component 357, so as to drive the recovery component 357 through the sample feeding platform 11 and into and out of the transfer channel 11b and the recovery channel 11c.

[0105] In this embodiment, below the sample introduction platform 11, the base 1 is also provided with a base, which provides an installation foundation for the pushing device 3. A recovery guide rail 17 is provided on the base at a position corresponding to the recovery channel 11c. Typically, the recovery drive component 351 includes a drive motor and a synchronous belt. The synchronous belt is arranged parallel to the recovery guide rail 17. The recovery base 353 is connected to the synchronous belt and moves along the recovery guide rail 17 under the drive of the drive motor.

[0106] Commonly, the recovery lifting drive 355 can be a motor or cylinder, etc. The recovery component 357 is connected to the output end of the recovery lifting drive 355 through a connecting seat. The recovery lifting drive 355 can drive the recovery component 357 to move up and down, so that the first limiting part 3573 and the recovery part 3571 of the recovery component 357 enter and exit the recovery channel 11c and the transfer channel 11b through the recovery track groove 115.

[0107] Furthermore, in one embodiment, a drag chain is also connected between the recovery guide rail 17 and the recovery base 353 to further ensure the stability of the movement of the recovery base 353.

[0108] Optionally, the base 1 is also provided with a protective shell covering the recovery guide rail 17 and the recovery drive component 351 to prevent leaked liquid from affecting the normal operation of the recovery component 35.

[0109] Reference Figures 1 to 3 In one embodiment, the base 1 is further provided with a sample inlet channel 11a, and the sample inlet channel 11a, transfer channel 11b, and recovery channel 11c are connected in sequence. The pushing device 3 also includes a sample inlet element 315, which is movably disposed in the sample inlet channel 11a to push the sample holder 200 along the sample inlet channel 11a. Similarly, the sample inlet channel 11a is often formed by a partial recess of the sample inlet platform 11. After the sample holder 200 is placed into the sample inlet channel 11a manually or by means of a device, the sample inlet element 315 pushes the sample holder 200 to move along the sample inlet channel 11a toward the transfer channel 11b.

[0110] In this embodiment, the sample introduction channel 11a and the recovery channel 11c are both set at an angle to the transfer channel 11b, making the structure compact and saving space in the sample introduction system 100.

[0111] Optionally, the sample introduction channel 11a and the recovery channel 11c are arranged in parallel, separated from each other by an isolation mechanism, and the aforementioned transfer channel 11b is provided at their ends facing the same direction. The sample introduction channel 11a, recovery channel 11c, and transfer channel 11b can be connected in a "Z" shape, with the sample introduction side and recovery side located on opposite sides of the sample introduction system 100; alternatively, they can be connected in a "U" shape, with the sample introduction side and recovery side located on the same side of the sample introduction system 100. Specific configurations can be selected based on actual conditions, and no further limitations are specified here. The bottom walls of both the sample introduction channel 11a and the recovery channel 11c are flush with the bottom wall of the transfer channel 11b, facilitating the movement of the sample holder 200.

[0112] Understandably, the sample inlet channel 11a is also provided with a sample inlet track groove 111. The sample inlet component 315 enters the sample inlet channel 11a from below the sample inlet platform 11 through the sample inlet track groove 111, so as to drive the sample holder 200 in the sample inlet channel 11a to move.

[0113] Reference Figure 3 In one embodiment, the sample introduction system 100 further includes a blocking component, which includes:

[0114] The blocking and lifting drive component is connected to the base 1; and

[0115] The blocking member 15 is located at the outlet of the sample inlet channel 11a and is connected to the blocking lifting drive. The blocking lifting drive is used to drive the blocking member 15 in and out of the sample inlet channel 11a to block or release the sample holder 200 in the sample inlet channel 11a.

[0116] In this embodiment, since the side pusher 33 moves in one direction, at most one sample holder 200 should be kept in the transfer channel 11b. When it is necessary to control the number of sample holders 200 in the transfer channel 11b, the control blocking member 15 rises into the sample inlet channel 11a and blocks the sample holder 200 from entering the transfer channel 11b; when the blocking member 15 descends, the sample holder 200 can be sent into the transfer channel 11b by the sample inlet member 315.

[0117] Optionally, the blocking member 15 is a rod structure. To ensure stability, the sample injection system 100 includes two spaced blocking members 15. The sample injection platform 11 is provided with a through hole for each blocking member 15. Commonly, the blocking lifting drive can be a motor or cylinder, etc., and is used to drive the blocking member 15 through the through hole to enter and exit the sample injection channel 11a.

[0118] Furthermore, the end of the blocking member 15 and the bottom of the sample holder 200 are respectively provided with guide slopes to avoid mutual jamming, so that the blocking member 15 can be raised more smoothly and block in front of the sample holder 200.

[0119] Reference Figures 5 to 7 In one embodiment, the base 1 is provided with a sample inlet guide rail 13 extending along the sample inlet channel 11a, and the pushing device 3 includes a sample inlet assembly 31, which includes:

[0120] Sample injection drive 311, sample injection drive 311 is connected to base 1; and

[0121] The sample injection base 313 is connected to the sample injection guide rail 13. The sample injection drive 311 is connected to the sample injection base 313 and drives the sample injection base 313 to move along the sample injection guide rail 13. The sample injection base 313 is equipped with a thrust sensor 317. The sample injection component 315 is telescopically connected to the sample injection base 313.

[0122] A spring is provided between the injection element 315 and the injection base 313. When the spring is compressed, the injection element 315 triggers the thrust sensor 317, and the injection element 315 moves away from the sample holder 200.

[0123] Reference Figure 6 and Figure 7 In this embodiment, the arrangement of the sample inlet guide rail 13, the sample inlet drive 311, and the sample inlet base 313 is the same as that of the recovery guide rail 17, the recovery drive 351, and the recovery base 353 described above, and will not be repeated here. It can be understood that the sample inlet base 313 can also be provided with a sample inlet lifting drive, so that the sample inlet 315 can move up and down to pass through the sample inlet track groove 111 and enter and exit the sample inlet channel 11a.

[0124] Furthermore, the sample injector 315 is provided with a sample injection section, which is always positioned towards the transfer channel 11b, so as to drive the sample holder 200 to move when the sample injector 315 moves towards the transfer channel 11b. In this embodiment, the sample injection base 313 also extends upward to provide a bracket, and the end of the bracket is provided with a thrust sensor 317. The sample injector 315 is connected to the sample injection base 313 through a connector, the connector is provided with a guide shaft 3153, the sample injector 315 is provided with a bearing seat 3151, the guide shaft 3153 is movably inserted through the bearing seat 3151, and a spring is sleeved on the guide shaft 3153.

[0125] When the sample injector 315 pushes the sample holder 200 and the sample holder 200 stops moving, the sample injector 315 is stopped by the sample holder 200. At this time, the sample injection base 313 is still moving, and the guide shaft 3153 moves relative to the bearing seat 3151. The spring is compressed, and the sample injector 315 triggers the thrust sensor 317. After receiving the signal from the thrust sensor 317, the controller controls the sample injection base 313 to move back a certain distance until the spring returns to its normal state. This achieves intelligent stopping of the sample injector 315, preventing the sample injection base 313 from damaging the sample holder 200 and other components in the sample injection system 100.

[0126] In this process, the spring acts as a buffer to prevent damage to the sample injection assembly 31. The sample injection component 315 is equipped with a shielding plate, and the thrust sensor 317 is equipped with a groove-shaped structure. When the spring is compressed, the shielding plate extends into the groove-shaped structure, causing the thrust sensor 317 to generate a corresponding signal.

[0127] Understandably, the recycling component 35 can be configured with a similar structure to enable intelligent stopping of the recycling component 357 and avoid damage to the device.

[0128] Optionally, the recovery component 35 and the sample injection component 31 are provided with two recovery elements 357 and two sample injection elements 315 at intervals to ensure the stability of the movement of the sample holder 200.

[0129] Reference Figure 2 and Figure 4 In one embodiment, the base 1 is further provided with a transfer drive, which is connected to the side pusher 33 and drives the side pusher 33 to move along the transfer channel 11b. The transfer drive is also provided with a positioning encoder to control the start and stop of the side pusher 33 at a preset position.

[0130] In this embodiment, a transfer guide rail 19 is provided on one side of the base 1, and the side pusher 33 is slidably connected to the transfer guide rail 19. The end of the side pusher 33 away from the transfer guide rail 19 is bent and extends into the transfer channel 11b.

[0131] Typically, the transfer drive can be a combination of a motor and a synchronous belt. The motor is located on one side of the base 1, and the synchronous belt is arranged parallel to the transfer guide rail 19. The side pusher 33 is connected to the synchronous belt. The transfer drive drives the side pusher 33 to move linearly along the transfer guide rail 19. After the side pusher 33 completes the push of one sample rack 200 and the sample rack 200 enters the recovery channel 11c, the side pusher 33 resets to wait for the next push.

[0132] In this embodiment, the preset position refers to the detection position and sampling position provided in the transfer channel 11b. By recording the signal of the detection position or sampling position by the positioning code disk, when the sample rack 200 is about to reach the detection position or sampling position, the corresponding signal is detected, and the system controls the side pusher 33 to stop moving so that the sample rack 200 stops in place. The structure is simple and easy to control.

[0133] Reference Figure 1 and Figure 2 In one embodiment, the sample introduction system 100 further includes an emergency channel 11d, which is arranged in parallel with the transfer channel 11b. A bracket 37 is movably provided in the emergency channel 11d, which is used to support the sample holder 200 as it moves along the emergency channel 11d.

[0134] In this embodiment, under normal circumstances, the sample holder 200 should move sequentially through the sample inlet channel 11a, the transfer channel 11b, and the retrieval channel 11c. In case of a sudden emergency, the emergency channel 11d can be activated. One end of the emergency channel 11d is equipped with an emergency sampling position, which is spaced apart from the sampling position of the transfer channel 11b to facilitate the rapid movement of the sampling needle to the emergency sampling position for sampling. The emergency channel 11d has a higher priority than the transfer channel 11b. When the bracket 37 of the emergency channel 11d moves towards the emergency sampling position, the sampling needle moves to the emergency sampling position for priority sampling, and the movement of the sample holder 200 in the transfer channel 11b will be paused, or it will move to the sampling position and be limited by the side pusher 33 and the retrieval member 357.

[0135] The driving method of bracket 37 is the same as that of the side pusher 33 mentioned above, and will not be repeated here.

[0136] The bracket 37 has a groove for accommodating the sample holder 200. One side of the groove has a protrusion, and one side of the sample holder 200 has a groove. The groove and the protrusion serve to prevent the sample holder 200 from being placed upside down.

[0137] The present invention also proposes a sample introduction method using a sample introduction system 100 as described above, wherein the transfer channel 11b is provided with a sampling position, and the sample introduction method includes:

[0138] Receive arrival signal;

[0139] The recovery component 357 is controlled to approach and abut against the sample holder 200, so that the recovery component 357 and the side pusher 33 limit the sample holder 200 to the sampling position;

[0140] Obtain the sampling end signal;

[0141] The control unit 357 enters the transfer channel 11b through the reversing space 11e and pushes the sample rack 200 to the recycling channel 11c.

[0142] In one embodiment, when the sample rack 200 is in the sampling position, a positioning signal is generated. At this time, the side pusher 33 is located at one end of the sample rack 200. When the controller of the sample introduction system 100 receives this positioning signal, it proceeds to the next operation, controlling the recovery component 357 to cooperate with the side pusher 33 to limit the sample rack 200 in preparation for sampling. The sampling device can sample all reagents from all sample containers on the sample rack 200 at once or multiple times, and generates a sampling end signal after sampling is completed. Once all sampling operations are completed, the recovery component 357 pushes the sample rack 200 to the recovery channel 11c.

[0143] Thus, by using the recyclable component 357 to achieve the functions of limiting and recycling, the system integration is improved and the space and resources occupied and wasted are reduced without occupying too much system timing.

[0144] In one embodiment, the transfer channel 11b is further provided with a detection position, the sample rack 200 is provided with a plurality of sample slots 201 arranged in sequence for accommodating sample containers, and the side pusher 33 is connected to a positioning code disk. Before the step of obtaining the positioning signal, the following is also included:

[0145] The control side pusher 33 pushes the sample holder 200 along the transfer channel 11b and causes a sample slot 201 to stop at the detection position;

[0146] Check whether there is a sample container in sample slot 201;

[0147] When a sample container is detected in the sample slot 201, the control side pusher 33 pushes the sample rack 200 to the sampling position, and the positioning code generates an arrival signal.

[0148] When it is detected that there is no sample container in the sample slot 201, the control side pusher 33 pushes the sample rack 200 to move, so that the next sample slot 201 stays at the detection position.

[0149] In this embodiment, the sample introduction system 100 is equipped with a barcode scanner 6 and a sample container detector. A corresponding identification code is provided on the sample rack 200. The barcode scanner 6 is used to scan and identify the identification code of the sample container and record the corresponding information of the sample container. It is understood that the above information will include, but is not limited to, the storage location information of the sample rack 200, the reagent information inside the corresponding sample container, etc.

[0150] When the sample container detector detects a sample container, it controls the side pusher 33 to stop the corresponding sample slot 201 at the sampling position, waiting for sampling; otherwise, it will not.

[0151] Optionally, the sample container detector and the barcode scanner 6 can use the same detection position. That is, when a sample slot 201 of the sample rack 200 is in the detection position, the sample container detection and barcode scanning operations are performed simultaneously, improving the throughput efficiency of the sample rack 200 in the transfer channel 11b. Of course, the two can also be set separately and occupy different detection positions, as long as the operation sequence of detecting the sample slot 201 before sampling is ensured.

[0152] Furthermore, the detection position can be spaced several sample slots 201 apart from the sampling position. For example, the sample rack 200 has sample slots 201 numbered 1 to 5 sequentially. Slot 1 first passes the detection position to reach the sampling position. While the sample container in slot 1 is being sampled, slot 2 has already passed the detection position, and slot 3 is currently at the detection position. After the sample container in slot 1 has finished being sampled, the side pusher 33 causes the sample rack 200 to advance one slot, so that slot 2 is at the sampling position, slot 3 passes the detection position, slot 4 is at the detection position, and so on. The subsequent sample container detection operation is performed simultaneously with sampling, further improving system efficiency.

[0153] Optionally, the transfer channel 11b is equipped with a first sample container detector 7, and when the sample introduction system 100 is equipped with an emergency channel 11d, the emergency channel 11d is equipped with a second sample container detector 8 to detect the sample containers respectively.

[0154] In one embodiment, after the step of controlling the retrieval member 357 to approach and abut against the sample holder 200, so that the retrieval member 357 and the side pusher 33 limit the sample holder 200 to the sampling position, the method further includes:

[0155] Obtain the signal indicating that sampling of the sample container is complete;

[0156] Control the reset of the recovery component 357;

[0157] The control side pusher 33 pushes the sample holder 200 to move;

[0158] Return to the steps for obtaining the position signal;

[0159] Repeat the above steps until all sample containers have been sampled.

[0160] In this embodiment, the sample container sampling completion signal is different from the sampling end signal. The former is the signal emitted when the sampling needle finishes sampling one of the sample containers, while the sampling end signal is the signal emitted when the sampling needle finishes sampling the last sample container on the sample holder 200. Repeating the above steps can sequentially complete the limiting at each sample slot 201 and the sampling of the sample containers.

[0161] In one embodiment, the recycling channel 11c is provided with a recycling area. After the steps of controlling the recycling component 357 to enter the transfer channel 11b through the reversing space 11e and pushing the sample holder 200 to the recycling channel 11c, the method further includes:

[0162] The control unit 357 pushes the sample rack 200 along the recycling channel 11c to the recycling area;

[0163] Control the recovery component 357 to reset to its initial position.

[0164] In this embodiment, the recycling area is a portion of the recycling channel 11c near the recycling end. After sampling, the sample holder 200 is placed in the recycling area to await recycling. The initial position of the recycling component 357 is at a certain distance from the entrance of the recycling channel 11c, which understandably does not impede the movement of the sample holder 200.

[0165] Optionally, a full load detector is provided on one side of the recycling channel 11c. When there are enough sample racks 200 in the recycling area to trigger the full load detector, the recycling component 357 will stop transporting sample racks 200 into the recycling channel 11c.

[0166] In one embodiment, the sample introduction system 100 is provided with a sample introduction channel 11a, a sample introduction element 315 is provided in the sample introduction channel 11a, and a blocking element 15 is provided at the outlet of the sample introduction channel 11a. Before the step of obtaining the positioning signal, the system further includes:

[0167] Acquire the injection signal;

[0168] The control injection element 315 pushes the sample holder 200 in the injection channel 11a to move towards the transfer channel 11b;

[0169] Check whether there is a sample rack 200 in the transfer channel 11b;

[0170] When a sample holder 200 is detected in the transfer channel 11b, the control blocking component 15 blocks the movement of the sample holder 200 toward the transfer channel 11b.

[0171] When it is detected that there is no sample holder 200 in the transfer channel 11b, the blocking member 15 is moved away from the movement path of the sample holder 200, and the sample feeding member 315 is controlled to push the sample holder 200 into the transfer channel 11b.

[0172] In this embodiment, the sample injection signal is generated by pressing the injection button after the sample holder 200 is placed in the sample injection channel 11a. Since the side pusher 33 moves in one direction, it is necessary to ensure that there is at most one sample holder 200 in the transfer channel 11b. A sample holder 200 detector is provided at one end of the transfer channel 11b. When the sample holder 200 detector is triggered, it indicates that there is a sample holder 200 in the transfer channel 11b; otherwise, there is no sample holder 200. If there is a sample holder 200, the blocking member 15 is controlled to prevent the sample holder 200 from entering the transfer channel 11b. When there is no sample holder 200, the blocking member 15 is located below the sample injection platform 11, and the sample injection member 315 can push the sample holder 200 into the transfer channel 11b.

[0173] Furthermore, in one embodiment:

[0174] A side-pushing device 5 is provided, which is located on one side of the sample inlet channel 11a. An anti-tipping strip 113 is provided inside the sample inlet channel 11a, and an anti-tipping groove 203 is provided in the sample holder 200. Before the step of controlling the sample inlet component 315 to push the sample holder 200 inside the sample inlet channel 11a towards the transfer channel 11b, the following steps are also included:

[0175] The control side push device 5 pushes the sample rack 200, so that the anti-tipping strip 113 is engaged in the anti-tipping groove 203;

[0176] The control side pusher 33 is reset.

[0177] In this embodiment, the anti-tipping strip 113 is an inverted "L"-shaped retainer strip located on the bottom wall of the sample inlet channel 11a, the anti-tipping groove 203 is a "T"-shaped groove, and the side-pushing device 5 is located on one side of the sample inlet channel 11a. After receiving the sample inlet signal, it pushes the push plate to move by means of a cylinder or motor, so as to push the sample holder 200 to move laterally in the sample inlet channel 11a, so that the anti-tipping strip 113 is engaged in the anti-tipping groove 203. Before the sample inlet component 315 pushes the sample holder 200 to move, the above-mentioned operation is performed in advance to prevent tipping and ensure that the sample holder 200 runs smoothly in the sample inlet channel 11a, avoiding large-area sample damage caused by tipping.

[0178] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A sample introduction system, characterized in that, The sample introduction system includes: The machine base is provided with a transfer channel, a retrieval channel, and a reversing space. The transfer channel and the retrieval channel are connected. The reversing space is located on one side of the transfer channel and the retrieval channel and is connected to the transfer channel and the retrieval channel. A pushing device is connected to the machine base. The pushing device includes a side pusher and a retrieval member. The side pusher is movably disposed within the transfer channel to push the sample rack along the transfer channel. The retrieval member is movably disposed within the retrieval channel to push the sample rack along the retrieval channel. Wherein, when the retrieval component approaches the transfer channel, it cooperates with the side pusher to limit the sample rack, or the retrieval component enters the transfer channel through the reversing space and pushes the sample rack from the transfer channel into the retrieval channel; the retrieval component is provided with a retrieval part and a first limiting part, the retrieval part and the first limiting part are arranged opposite to each other, the retrieval part is used to push the sample rack, the sample rack is provided with a corresponding second limiting part, and the first limiting part is used to abut against and limit the second limiting part.

2. The sample introduction system as described in claim 1, characterized in that, The base is provided with a sample inlet platform, the transfer channel and the recovery channel are located on the sample inlet platform, and the reversing space is located below the sample inlet platform; The sample introduction platform is provided with a recovery track groove corresponding to the recovery channel. The recovery track groove extends along the recovery channel. The recovery component is located in the recovery track groove. Part of the recovery track groove is located in the transfer channel to connect the transfer channel, the recovery channel and the reversing space.

3. The sample introduction system as described in claim 2, characterized in that, The base is provided with a recycling guide rail extending along the recycling channel, and the pushing device includes a recycling assembly, which includes: A recycling drive unit, which is connected to the base; A recovery base, slidably connected to the recovery guide rail, a recovery drive connected to the recovery base and driving the recovery base to move along the recovery guide rail; and a recovery lifting drive connected to the recovery base, with its output end connected to the recovery component, to drive the recovery component through the sample feeding platform and into and out of the transfer channel and the recovery channel.

4. The sample introduction system according to any one of claims 1-3, characterized in that, The base is also provided with a sample inlet channel, the sample inlet channel, the transfer channel and the recovery channel are connected in sequence, and the pushing device also includes a sample inlet component, which is movably disposed in the sample inlet channel to push the sample rack to move along the sample inlet channel; The sample inlet channel and the recovery channel are both set at an angle to the transfer channel.

5. The sample introduction system as described in claim 4, characterized in that, The injection system further includes a blocking component, which includes: A blocking and lifting drive is connected to the base; and a blocking member is located at the outlet of the sample inlet channel and connected to the blocking and lifting drive. The blocking and lifting drive is used to drive the blocking member in and out of the sample inlet channel to block or release the sample holder in the sample inlet channel.

6. The sample introduction system as described in claim 4, characterized in that, The base is provided with a sample inlet guide rail extending along the sample inlet channel, and the pushing device includes a sample inlet assembly, which includes: The sample injection drive is connected to the base; and the sample injection base is connected to the sample injection guide rail. The sample injection drive is connected to the sample injection base and drives the sample injection base to move along the sample injection guide rail. The sample injection base is equipped with a thrust sensor, and the sample injection component is retractably connected to the sample injection base. A spring is provided between the sample injector and the sample injector base. When the spring is compressed, the sample injector triggers the thrust sensor, and the sample injector moves away from the sample holder.

7. The sample introduction system according to any one of claims 1-3, characterized in that, The base is also provided with a transfer drive, which is connected to the side pusher and drives the side pusher to move along the transfer channel. The transfer drive is also provided with a positioning encoder to control the start and stop of the side pusher at a preset position. And / or, the sample introduction system further includes an emergency channel, which is arranged in parallel with the transfer channel. A bracket is movably provided in the emergency channel to support the sample holder as it moves along the emergency channel.

8. A sample introduction method using the sample introduction system as described in any one of claims 1 to 7, wherein the transfer channel is provided with a sampling position, characterized in that, The injection method includes: Receive arrival signal; The recovery component is controlled to approach and abut against the sample holder, so that the recovery component and the side pusher limit the sample holder to the sampling position; Obtain the sampling end signal; The system controls the recyclable component to enter the transfer channel through the reversing space and pushes the sample rack into the recycling channel.

9. The injection method as described in claim 8, characterized in that, The transfer channel is also equipped with a detection position, and the sample rack has multiple sample slots arranged in sequence for accommodating sample containers. The side pusher is connected to a positioning code disk. Before the step of obtaining the positioning signal, the system further includes: The control side pusher moves the sample holder along the transfer channel and keeps a sample slot at the detection position; Detect whether there is a sample container in the sample slot; When a sample container is detected in the sample slot, the control side pusher pushes the sample rack to the sampling position, and the positioning code generates an arrival signal; When no sample container is detected in the sample slot, the control side pusher pushes the sample rack to move, so that the next sample slot stops at the detection position.

10. The injection method as described in claim 8, characterized in that, After the step of controlling the retrieval component to approach and abut against the sample holder, so that the retrieval component and the side pusher component limit the sample holder to the sampling position, the method further includes: Obtain the signal indicating that sampling of the sample container is complete; Control the reset of the recovered component; The side pusher controls the movement of the sample holder; Return to the steps for obtaining the position signal; Repeat the above steps until all sample containers have been sampled.

11. The injection method as described in claim 8, characterized in that, The recycling channel is provided with a recycling area. After controlling the recycled component to enter the transfer channel through the reversing space and pushing the sample holder into the recycling channel, the method further includes: The control unit pushes the sample rack along the recycling channel to the recycling area; Control the recovered component to reset to its initial position.

12. The injection method according to any one of claims 8-11, characterized in that, The sample introduction system is provided with a sample introduction channel, a sample introduction component is provided within the sample introduction channel, and a blocking component is provided at the outlet of the sample introduction channel. Prior to the step of obtaining the positioning signal, the system further includes: Acquire the injection signal; The injection device is controlled to push the sample holder in the injection channel toward the transfer channel; Check whether there are sample racks in the transfer channel; When a sample rack is detected in the transfer channel, the blocking device is controlled to prevent the sample rack from moving into the transfer channel; When no sample holder is detected in the transfer channel, the blocking member is moved away from the movement path of the sample holder, and the sample feeding member is controlled to push the sample holder into the transfer channel.

13. The injection method as described in claim 12, characterized in that: A side-pushing device is provided, the side-pushing device being disposed on one side of the sample inlet channel, the sample inlet channel being provided with an anti-tipping strip, and the sample holder being provided with an anti-tipping groove. Prior to the step of controlling the sample inlet component to push the sample holder within the sample inlet channel toward the transfer channel, the method further includes: The control side push device pushes the sample rack, causing the anti-tipping strip to engage in the anti-tipping groove; Control side push component reset.

Citation Information

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