Sampling execution structure of sample analyzer and sample analyzer

Abstract

The utility model provides a sampling execution structure of a sample analyzer and the sample analyzer, and belongs to the technical field of sample analysis and detection equipment. The sample analyzer is provided with a sample dripping position and a sample sucking position; the sampling execution structure comprises a sampling needle and a transmission device; the number of the sampling needles is two, the two sampling needles are both arranged on the transmission device, and the transmission device drives the two sampling needles to move respectively. According to the utility model, the two sampling needles can be used for sampling respectively, so that samples can be transmitted to different detection modules respectively for detection, and different detection item results can be obtained. A sample separation structure of a pipeline in the sample analyzer is reduced, and cross contamination is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample analysis and detection equipment, in particular to a sampling execution structure of a sample analyzer and the sample analyzer. Background Art

[0002] Analytical equipment such as urine sample analyzers are typically equipped with a sampling needle to draw samples. Current analytical equipment often requires multiple tests, yet only features a single sampling needle. This needle draws enough sample for each test module and then separates the samples. The separated samples are then transferred to the corresponding test modules to complete different tests. Sample separation is typically accomplished by a sample separation mechanism within the analyzer. This structure is complex and difficult to clean thoroughly, which can easily lead to cross-contamination between samples and subsequent samples, impacting the accuracy and reliability of test results. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a sampling execution structure of a sample analyzer and a sample analyzer, which are used to solve the problems in the prior art of sampling with one sampling needle, requiring sample splitting, and affecting the test results.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a sampling execution structure of a sample analyzer, wherein the sample analyzer has a sample dropping position and a sample aspiration position, and the sampling execution structure includes a sampling needle and a transmission device;

[0005] There are two sampling needles, both of which are arranged on the transmission device, and the transmission device drives the two sampling needles to move respectively.

[0006] The two sampling needles are respectively a first sampling needle and a second sampling needle. The moving path of the first sampling needle covers the sample aspirating position, and the moving path of the second sampling needle covers the sample dropping position and the sample aspirating position.

[0007] Optionally, the transmission device includes a guide rail, and the first sampling needle and the second sampling needle are both installed on the same guide rail.

[0008] Optionally, the transmission device includes a guide rail and a telescopic assembly. The telescopic assembly is arranged on the guide rail and moves along the extension direction of the guide rail. The sampling needle is arranged on the telescopic assembly. The telescopic assembly drives the sampling needle to telescope, and the telescopic direction of the sampling needle intersects with the extension direction of the guide rail.

[0009] Optionally, the extension and retraction direction of the sampling needle is perpendicular to the extension direction of the guide rail.

[0010] Optionally, the sampling needle telescopically moves along an extension direction of the sampling needle.

[0011] Optionally, the telescopic assembly includes a slide rail and a telescopic motor, the sampling needle is movably arranged on the slide rail, and the telescopic motor drives the sampling needle to telescopically move along the extension direction of the slide rail.

[0012] Optionally, the telescopic assembly includes a zero position sensor and a limit position sensor, the zero position sensor is arranged at the initial position of the telescopic motion trajectory of the sampling needle, and the limit position sensor is arranged at the limit position of the telescopic motion trajectory of the sampling needle.

[0013] Optionally, the sampling execution structure includes a swab unit for cleaning the outer wall of the sampling needle. The swab unit is fixedly arranged on the telescopic assembly relative to the sampling needle, and the telescopic trajectory of the sampling needle passes through the swab unit.

[0014] Optionally, the transmission device further includes an occupancy sensor, and the occupancy sensor is arranged corresponding to the dripping position.

[0015] The present invention also provides a sample analyzer, comprising the sampling execution structure as described in any of the above items, and also comprising a syringe, a first detection module for cooperating with the first sampling needle to detect a first parameter of the sample, and a second detection module for cooperating with the second sampling needle to detect a second parameter of the sample, wherein there are two syringes, and the two syringes are respectively connected to the two sampling needles.

[0016] Optionally, the first detection module is a flow cell detection device, and the second detection module is a test strip detection device.

[0017] As described above, the sampling execution structure and sample analyzer of the present invention have the following beneficial effects: since there are two sampling needles, both sampling needles are arranged on a transmission device, and the transmission device drives the two sampling needles to move separately, the two sampling needles are respectively a first sampling needle and a second sampling needle, the movement path of the first sampling needle covers the sample suction position, and the movement path of the second sampling needle covers the sample dripping position and the sample suction position. Therefore, the two sampling needles can sample separately, which is conducive to transferring samples to different detection modules for detection, thereby obtaining different detection item results. It is beneficial to reduce the sample separation structure in the pipeline within the sample analyzer and avoid cross contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the structure of the sampling execution structure according to an embodiment of the present invention;

[0019] Figure 2 Shown is a schematic structural diagram of a transmission device according to an embodiment of the present invention;

[0020] Figure 3 Shown is a schematic structural diagram of a first sampling needle and a telescopic assembly in an embodiment of the present invention;

[0021] Figure 4 Shown is a schematic structural diagram of a second sampling needle and a telescopic assembly in an embodiment of the present invention;

[0022] Figure 5 Shown is a schematic structural diagram of a sampling needle in an embodiment of the present invention.

[0023] Explanation of the reference numerals: first sampling needle 1 , second sampling needle 2 , telescopic assembly 3 , transmission device 4 , swab unit 5 , slide rail 31 , limit position sensor 32 , belt 33 , zero position sensor 34 , telescopic motor 35 , guide rail 41 , slider 42 , drive motor 43 , occupancy sensor 44 . DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0026] See also Figures 1 to 5 This embodiment provides a sample analyzer comprising a sampling execution structure, a syringe, a first detection module, and a second detection module. This embodiment also provides a sampling execution structure of the sample analyzer comprising a sampling needle and a transmission device 4. In this embodiment, two sampling needles are provided, both of which are mounted on the transmission device 4, which is used to drive the two sampling needles to move separately.

[0027] In this embodiment, the two sampling needles are a first sampling needle 1 and a second sampling needle 2. The first detection module is used to cooperate with the first sampling needle 1 to detect a first parameter of the sample, and the second detection module is used to cooperate with the second sampling needle 2 to detect a second parameter of the sample. In this embodiment, two syringes are provided, each connected to the two sampling needles. The syringes can draw samples through the sampling needles and can also draw cleaning fluid and then inject cleaning fluid into the sampling needles to clean the inner wall of the sampling needles.

[0028] In this embodiment, the two sampling needles are independently provided. Compared with a single sampling needle, the two sampling needles can move and sample independently, and the movement is more flexible. When sampling multiple samples in sequence, the samples can be sampled alternately, that is, one sample needle can be used for sampling, and the other sample needle can be used to transport the sample to complete the detection, thereby improving the detection and analysis efficiency.

[0029] In this embodiment, the first detection module is a flow cell detection device, and the second detection module is a test strip detection device. Specifically, the test strip detection device is used for dry chemical analysis of urine. Urine dry chemical analysis is called urine test strip determination. The test strip is composed of a module containing dry chemical reagents attached to a sturdy plastic strip or paper strip. Various routine chemical examination contents in the urine sample react with the dry chemical reagents, causing the color of the module on the test strip to change, and the depth of its color is proportional to the concentration of the corresponding chemical component in the urine sample. The flow cell detection device is used for morphological testing of urine. Urine formed elements refer to the general term for substances that come from the urinary tract and are formed by seepage, excretion, shedding and concentrated crystallization in a visible form. The urine sample passes through the flow cell, and images of the formed elements in the urine are obtained using equipment such as a microscope, and then identified and counted to obtain the detection and analysis results.

[0030] In this embodiment, the sample analyzer has a sample drop position and a sample aspiration position. The movement path of the first sampling needle 1 covers the sample aspiration position, so that the sample can be aspirated at the sample aspiration position. The movement path of the second sampling needle 2 covers the sample drop position and the sample aspiration position, so that the sample can be dropped after aspirating the sample.

[0031] like Figure 2 As shown, in this embodiment, the transmission device 4 includes a guide rail 41, and the sampling needle is disposed on the guide rail 41 and reciprocates along the extension direction of the guide rail 41. In some embodiments, there may be two guide rails 41, with the first sampling needle 1 and the second sampling needle 2 disposed on the two guide rails 41, respectively, to provide greater flexibility in the placement of the first sampling needle 1 and the second sampling needle 2. In this embodiment, the first sampling needle 1 and the second sampling needle 2 are both mounted on the same guide rail 31, that is, the first sampling needle 1 and the second sampling needle 2 move along the same motion trajectory on the same guide rail 41, eliminating the need for an additional guide rail 41. This simplifies the structure of the transmission device 4 and reduces the overall cost of the sample analyzer.

[0032] like Figure 2 As shown, in this embodiment, the transmission device 4 further includes a telescopic assembly 3, which is arranged on the guide rail 41 so as to be movable along the extension direction of the guide rail 41. The sampling needle is arranged on the telescopic assembly 3, and the telescopic assembly 3 drives the sampling needle to telescope, and the telescopic direction of the sampling needle intersects the extension direction of the guide rail 41. Because the telescopic direction of the sampling needle intersects the extension direction of the guide rail 41, the tip of the sampling needle can move in both the extension direction of the sampling needle and the extension direction of the guide rail 41, thereby increasing the range of movement of the sampling needle.

[0033] In this embodiment, the transmission device 4 further includes two drive motors 43, which respectively drive the two telescopic assemblies 3 to move on the guide rail 41. The guide rail 41 is provided with two sliders 42, and the telescopic assemblies 3 are arranged on the sliders 42 and slide on the guide rail 41 through the sliders 42.

[0034] Specifically, in this embodiment, the sampling needle telescopes along its extension direction. Simultaneously, the telescopic direction of the sampling needle is perpendicular to the extension direction of the guide rail 41. When the telescopic amount is the same, the telescopic direction of the sampling needle is perpendicular to the extension direction of the guide rail 41, which helps to increase the range of movement of the sampling needle.

[0035] like Figure 3 and Figure 4 As shown, in this embodiment, the telescopic assembly 3 includes a slide rail 31 and a telescopic motor 35 . The sampling needle is movably arranged on the slide rail 31 , and the telescopic motor 35 drives the sampling needle to telescope along the extension direction of the slide rail 31 .

[0036] Specifically, in this embodiment, the telescopic assembly 3 includes a slide rail 31 and two belt pulleys 33. The slide rail 31 is positioned along the sampling needle's extension and retraction direction, and the two belt pulleys 33 are positioned sequentially along the sampling needle's extension and retraction direction. A tensioned belt 33 is mounted on each pulley 33. The sampling needle is connected to the belt 33 and reciprocates on the slide rail 31. A telescopic motor 35 is connected to one of the belt pulleys 33, driving the belt 33 to reciprocate, thereby driving the sampling needle to retract and retract.

[0037] In this embodiment, the telescopic assembly 3 includes a zero position sensor 34 and a limit position sensor 32. The zero position sensor 34 is set at the initial position of the sampling needle telescopic motion trajectory, and the limit position sensor 32 is set at the limit position of the sampling needle telescopic motion trajectory.

[0038] Specifically, in this embodiment, both the zero position sensor 34 and the extreme position sensor 32 are optical couplers. Sensors are provided on the sampling needle corresponding to the zero position sensor 34 and the extreme position sensor 32, respectively. When the sampling needle moves to its initial position, i.e., the zero position, the sampling needle triggers the sensor corresponding to the zero position sensor 34 to calibrate the initial position of the sampling needle and thereby control its movement. When the sampling needle moves to its extreme position, the sampling needle triggers the sensor corresponding to the extreme position sensor 32 to prevent the sampling needle from colliding with surrounding structures due to movement exceeding the extreme position.

[0039] In this embodiment, the sampling execution structure includes a swab unit 5 for cleaning the outer wall of the sampling needle. The swab unit 5 is fixedly mounted on the telescopic assembly 3 relative to the sampling needle, and the sampling needle's telescopic trajectory passes through the swab unit 5. When the sampling needle telescopes, the swab unit 5 cleans the outer wall of the sampling needle, preventing sample residue on the outer wall of the sampling needle and causing cross-contamination of the sample.

[0040] In this embodiment, the transmission device 4 further includes an occupancy sensor 44, which is positioned corresponding to the sample dripping position. When the second sampling needle 2 moves to the sample dripping position, the occupancy sensor 44 is triggered, thereby sensing and detecting the position of the second sampling needle 2, thereby calibrating the position of the second sampling needle 2 and improving the positioning accuracy of the second sampling needle 2.

[0041] Specifically, in this embodiment, the sample analyzer further includes a second cleaning position, a first cleaning position, and an avoidance position. The sample drop position, the second cleaning position, the sampling position, the first cleaning position, and the avoidance position are sequentially arranged along the extension direction of the guide rail 41. The first cleaning position and the second cleaning position are each connected to a waste liquid pool. The second sampling needle 2 cleans the inner wall of the second sampling needle 2 in the second cleaning position, and the first sampling needle 1 cleans the inner wall of the first sampling needle 1 in the first cleaning position. The waste liquid after cleaning flows into the waste liquid pool to prevent cross contamination caused by residual sample on the inner wall of the sampling needle. In this embodiment, occupancy sensors 44 are also provided at the second cleaning position, the first cleaning position, and the avoidance position to detect whether the sampling needle has moved to the corresponding position.

[0042] In summary, the sampling execution structure and sample analyzer of the present embodiment have two sampling needles, both of which are arranged on the transmission device 4. The transmission device 4 drives the two sampling needles to move separately. The two sampling needles are respectively a first sampling needle 1 and a second sampling needle 2. The movement path of the first sampling needle 1 covers the sample aspiration position, and the movement path of the second sampling needle 2 covers the sample dripping position and the sample aspiration position. Therefore, the two sampling needles can sample separately, which is conducive to transferring samples to different detection modules for detection, thereby obtaining different detection results, and is conducive to reducing the sample separation structure in the pipeline of the sample analyzer to avoid cross contamination.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A sampling execution structure of a sample analyzer, characterized in that: The sample analyzer has a sample dropping position and a sample aspiration position, and the sampling execution structure includes a sampling needle and a transmission device; There are two sampling needles, both of which are arranged on the transmission device, and the transmission device drives the two sampling needles to move respectively. The two sampling needles are respectively a first sampling needle and a second sampling needle. The moving path of the first sampling needle covers the sample aspirating position, and the moving path of the second sampling needle covers the sample dropping position and the sample aspirating position.

2. The sampling execution structure of the sample analyzer according to claim 1, characterized in that: The transmission device includes a guide rail, and the first sampling needle and the second sampling needle are both installed on the same guide rail.

3. The sampling execution structure of the sample analyzer according to claim 2, characterized in that: The transmission device also includes a telescopic component, which is arranged on the guide rail and moves along the extension direction of the guide rail. The sampling needle is arranged on the telescopic component, and the telescopic component drives the sampling needle to telescope. The telescopic direction of the sampling needle intersects with the extension direction of the guide rail.

4. The sampling execution structure of the sample analyzer according to claim 3, characterized in that: The sampling needle telescopically moves along the extending direction of the sampling needle.

5. The sampling execution structure of the sample analyzer according to claim 3, characterized in that: The telescopic assembly includes a slide rail and a telescopic motor. The sampling needle is movably arranged on the slide rail. The telescopic motor drives the sampling needle to telescopically move along the extension direction of the slide rail.

6. The sampling execution structure of the sample analyzer according to claim 3, characterized in that: The telescopic assembly includes a zero position sensor and a limit position sensor. The zero position sensor is arranged at the initial position of the telescopic motion trajectory of the sampling needle, and the limit position sensor is arranged at the limit position of the telescopic motion trajectory of the sampling needle.

7. The sampling execution structure of the sample analyzer according to claim 3, characterized in that: The sampling execution structure includes a swab unit for cleaning the outer wall of the sampling needle. The swab unit is fixedly arranged on the telescopic assembly relative to the sampling needle, and the telescopic trajectory of the sampling needle passes through the swab unit.

8. The sampling execution structure of the sample analyzer according to claim 1, characterized in that: The transmission device further includes an occupancy sensor, which is arranged corresponding to the sample dropping position.

9. A sample analyzer, characterized in that: The method comprises the sampling execution structure according to any one of claims 1 to 8, further comprising a syringe, a first detection module for cooperating with the first sampling needle to detect a first parameter of the sample, and a second detection module for cooperating with the second sampling needle to detect a second parameter of the sample, wherein there are two syringes, and the two syringes are respectively connected to the two sampling needles.

10. The sample analyzer according to claim 9, characterized in that: The first detection module is a flow cell detection device, and the second detection module is a test strip detection device.

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