CN117664646A - Sampling control methods, devices, equipment and sample analyzers, media - Google Patents

Abstract

This application provides a sampling control method, device, equipment, sample analyzer, and medium book. The sampling control method includes: in the process of controlling the sampling needle to perform the current sampling task, after controlling the sampling needle to complete the sample suction action. Finally, determine whether the current sample suction volume of the sampling needle is the normal sample suction volume based on the characteristic value of the characteristic parameter of the sampling needle after sample suction. When it is determined that the sample suction volume of the sampling needle is the normal sample suction volume, the sample suction volume is controlled. The needle is removed from the sample container, and the sampling needle is moved to the sample dropping position for sample dripping to complete the current sampling task; otherwise, the sampling needle is controlled to perform a spitting action, and the sampling needle is After the sample spitting action is completed, the sampling needle is controlled to return to perform the sample sucking action, that is, the sample sucking action in the current sampling task is re-executed. Therefore, the sampling control method can improve the accuracy of sample suction and reduce equipment maintenance time.

Description

Sampling control methods, devices, equipment and sample analyzers, media

Technical field

This application relates to the technical field of medical devices, and in particular to a sampling control method, device, equipment, sample analyzer, and medium.

Background technique

In in vitro diagnostic instruments, the accuracy of the sampling volume has a crucial impact on the performance of the instrument, which directly affects whether the instrument performance can meet the index requirements. There are many factors that affect the accuracy of sampling. For example, when the sampling needle encounters air suction, bubbles, flocs, clots, etc. during the sample suction process, it will cause abnormal sample suction in the system.

In the existing sampling control process, every time the detection equipment detects a sampling abnormality of the sampling needle, sampling will be stopped and a fault prompt will be issued. It is necessary to wait for the staff to detect the fault before sampling can be continued again. The sampling efficiency is low.

Contents of the invention

In order to solve existing technical problems, this application provides a sampling control method, device, equipment, sample analyzer, and medium that have high sample suction accuracy and can reduce the maintenance time of sampling equipment.

A sampling control method including:

In the process of controlling the sampling needle to perform the current sampling task, after the sampling needle completes the sample suction action, the post-sample suction characteristic value of the characteristic parameter of the sampling needle is obtained, and the characteristic parameter is the same as that of the sampling needle. Parameters related to the sample aspiration volume of the needle;

Determine whether the sample suction volume of the sampling needle is the normal sample suction volume based on the characteristic value after sample suction;

If so, control the sampling needle to be removed from the sample container, and move the sampling needle to the sample dropping position for sample dropping, completing the current sampling task;

If not, the sampling needle is controlled to perform the sample spitting action, and after the sampling needle completes the sample spitting action, the sampling needle is controlled to return to perform the sample sucking action.

A sampling control device including:

A determination module, used to determine whether the sample suction volume of the sampling needle is the normal sample suction volume after the sampling needle completes the current sample suction action;

The first control module is used to control the sampling needle to move out of the sample container when determining whether the sample suction volume of the sampling needle is the normal sample suction volume, and move the sampling needle to the sample dropping position for dripping. Sample;

The second control module is used to control the sampling needle to perform a spitting action when determining whether the sample suction volume of the sampling needle is a normal sample suctioning volume, and after the sampling needle completes the spitting action, The sampling needle is controlled to return to perform the sample suction action.

A sampling device includes a processor and a memory. The memory stores a computer program that can be executed by the processor. When the computer program is executed by the processor, the sampling control method as described above is implemented.

A sampling device, including a sampling controller, a sampling needle and a sample suction detection component for implementing the sampling control method;

The sample suction detection component is connected to the sampling controller and the sampling needle respectively, and is used to detect the characteristic parameters of the sampling needle after the sampling needle completes the current sample suction action, and obtain the The characteristic value after sampling is sent to the sampling controller.

A sample analyzer includes a detection and analysis device and a sampling device as described above. The detection and analysis device performs detection and analysis according to the sample to be tested collected by the sampling device to obtain detection and analysis data of the sample to be tested.

A computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a control device, the sampling control method as described is implemented.

It can be seen from the above that the sampling control method provided by the present application, in the process of controlling the sampling needle to perform the current sampling task, after controlling the sampling needle to perform the sample suction action, based on the characteristic parameters of the sampling needle after the sample suction characteristics The value determines whether the current sample suction volume of the sampling needle is the normal sample suction volume. When it is determined that the sample suction volume of the sampling needle is the normal sample suction volume, the sample needle is controlled to be removed from the sample container, and the sampling needle is Move to the dropping position to drop the sample, and complete the current sampling task; otherwise, control the sampling needle to perform the spitting action, and after the sampling needle completes the spitting action, control the sampling The needle returns to perform the sample suction action, that is, the sample suction action in the current sampling task is re-executed. Therefore, the sampling control method can improve the accuracy of sample suction and reduce equipment maintenance time.

Description of drawings

Figure 1 is a schematic flow chart of a sampling control method provided according to an embodiment of the present application;

Figure 2 is a schematic flow chart of a sample control method provided according to another embodiment of the present application;

Figure 3 is a schematic diagram of the sampling needle suction process in the sampling control method provided according to the embodiment of the present application;

Figure 4 is a schematic flow chart of a sampling control method provided according to some embodiments of the present application;

Figure 5 is a schematic structural diagram of a sampling control device provided according to some embodiments of the present application;

Figure 6 is a schematic structural diagram of a sampling device provided according to an embodiment of the present application;

Figure 7 is a schematic structural diagram of a sampling device provided according to other embodiments of the present application;

FIG. 8 is a schematic flowchart of a method for performing a sampling task by a sampling device according to an embodiment of the present application.

Detailed ways

The technical solution of the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments of the description.

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. Those of ordinary skill in the art will not make any All other embodiments obtained under the premise of creative work belong to the scope of protection of this application.

In the following description, expressions related to “some embodiments” describe a subset of all possible embodiments. It should be noted that “some embodiments” may be the same subset or different subsets of all possible embodiments. sets and can be combined with each other without conflict.

In the following description, the terms "first, second, and third" involved are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understandable that "first, second, and third" are used in Where appropriate, the specific order or sequence may be interchanged so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

Please refer to FIG. 1 , which is a schematic flowchart of a sampling control method according to an embodiment of the present application. The sampling control method provided by the embodiment of the present application can be applied to the sample analyzer. The sample analyzer uses the sampling control method to sample and detect the sample to be tested, and obtain sample detection results corresponding to the sample to be tested. The sample analyzer may be a blood cell analyzer, an immune analyzer, a biochemical analyzer, etc. In some embodiments, the sampling control method can also be applied to a sampling device, which samples a sample to be tested according to the sampling control method for detection by a sample analyzer. The sample analyzer and sampling equipment applying the sampling control method provided by the embodiment of the present application will be described in detail later. The sampling control method provided by this embodiment includes steps S02, S04, S06 and S08, which are described in detail as follows.

S02: In the process of controlling the sampling needle to perform the current sampling task, after the sampling needle completes the sample suction action, obtain the post-sample suction characteristic value of the characteristic parameter of the sampling needle. The characteristic parameter is the same as the sample suction. Parameters related to the sampling volume of the sampling needle.

When the sample analyzer detects and analyzes the sample to be tested, it needs to use sampling to perform a sampling operation on the sample to be tested. The samples to be tested include, but are not limited to, blood, urine, or tissue fluid of the subject subject to be tested. When the sample analyzer detects the sample to be tested, it may be necessary to control the sampling to perform multiple sampling tasks. Controlling the sampling needle for each sampling task includes: controlling the sampling needle to move from the initial position to the first direction, so that the needle of the sampling needle penetrates the container cap of the sample container, and then continues to move to the sample to be tested. The sample suction position below the liquid level is performed, and the sample suction action is performed at the sample suction position. After the sample suction action is completed, the sampling needle is controlled to move in a second direction opposite to the first direction, so as to move the sampling needle from the After being pulled out from the sample container, it is moved to the sample dropping position for sample dropping. After the sample dropping is completed, the sampling needle is controlled to return to the initial position. If the sampling needle still needs to perform the next sampling task after the execution, continue to control the sampling needle to continue to perform the next sampling task according to the above process.

One end of the sampling needle is the needle end, and the other end is connected to the power source through the sampling pipeline. The sampling pipeline is used to transmit the power output by the power source to the sampling needle. The power source includes a pneumatic pump or a syringe that outputs positive and negative air pressure into the sampling needle, and also includes a motor for driving the sampling needle to move. By controlling the motor, the sampling needle can be moved according to the set timing.

The characteristic parameter of the sampling needle is related to the sample suction volume of the sampling needle, that is, the characteristic parameter refers to the characteristic parameter that can characterize the current sample suction volume in the sampling needle, and the characteristic value of the characteristic parameter changes with the sampling needle. changes in the current aspiration volume. The characteristic parameter is such as the pressure in the sampling needle, or the page height of the sample to be tested in the sampling needle, or the number of particles of the sample to be tested in the sampling needle, etc. The characteristic value after sample suction refers to the value of the characteristic parameter of the sampling needle after the sampling needle performs the sample suction action, that is, after the sampling needle completes the sample suction action, the sampling The value of the characteristic parameter of the sampling needle when there is a sample to be measured sucked into the needle.

S04: Determine whether the sample suction volume of the sampling needle is the normal sample suction volume based on the characteristic value after sample suction.

Since the characteristic parameters of the sampling needle are related to the sample suction volume of the sampling needle, by obtaining the characteristic value after sample suction, the current sample suction value of the sampling needle can be obtained based on the characteristic value after sample suction. amount information, and then determine whether the sample suction volume of the sampling needle meets the set sample suction volume. If it is satisfied, it means that the sample suction volume of the sampling needle is at the normal sample suction volume, and then it means that the current sample suction action is a normal sample suction action. , so the current sampling task can continue to be executed according to the normal process, that is, when it is determined that the sample suction volume is normal, S06 is executed; otherwise, it indicates that the current sample suction volume is an abnormal sample suction volume, and S08 is executed.

S06: When the sample suction volume of the sampling needle is the normal sample suction volume, control the sampling needle to be removed from the sample container, and move the sampling needle to the sample dropping position for sample dropping, completing the current time. Sampling tasks.

When the current sample suction volume of the sampling needle is the normal sample suction volume, the sample suction action currently performed by the sampling needle is considered to be an effective sample suction action, and the sample to be tested with the normal sample suction volume in the sampling needle can be transported Go to the dripping position to perform dripping. Specifically, the sampling needle is first controlled to move along the second direction, so that the sampling needle is pulled out from the sample container, and then the sampling needle is controlled to move to the sample dropping position according to a preset movement trajectory for sample dropping. . In some embodiments, the sample dropping position may also be a detection position of a sample analyzer. The sampling needle drops the sample to be tested after it is sucked into the detection position, and the detection component in the sample analyzer is responsible for the detection of the sample. Perform detection and analysis on the sample to be tested at the above detection position to obtain the corresponding detection and analysis results.

S08: When the sample suction volume of the sampling needle is an abnormal sample suction volume, control the sampling needle to perform a sample spitting action, and after the sampling needle completes the sample spitting action, control the sampling needle to return Execute the sample aspiration action.

When the current sample suction volume of the sampling needle is an abnormal sample suction volume, if the sample to be tested with the abnormal sample suction volume continues to be moved to the sample dropping position for dripping, the sample to be tested will be detected by the sample analyzer. If the sample size does not meet the testing requirements, the results of sample analysis may be inaccurate. According to the existing technology, when it is found that the sample suction volume of the sampling needle is abnormal, the current sampling task will be terminated and the fault information will be reported to maintenance personnel for corresponding troubleshooting until the fault is eliminated. Then control the sampling needle to re-execute the current sampling task. However, in the sampling control method provided by the embodiment of the present application, when the sample suction volume of the sampling needle is abnormal, the sample suction action currently performed by the sampling needle is considered to be an invalid sample suction action, and the sampling needle is first controlled to perform The sample spitting action is performed, and after the sample spitting action is completed, the sample sucking action of the current sampling task is returned to execution. By executing the spitting action after the sample suction is abnormal, the abnormally sucked sample to be tested that is sucked into the sampling needle can be excluded from the sample container, and the sample sucking action can be re-executed. Only when the sucked sample volume is normal, When measuring, it will be moved to the dropping position for dripping. Abnormal sample suction is sometimes not caused by a failure of the sampling equipment. However, in the existing technology, a fault alarm is issued every time an abnormal sample suction is detected, which increases the frequency and time of equipment maintenance, increases labor costs, and also It is not conducive to improving the detection efficiency of the sample analyzer. In the sample control method provided by the embodiment of the present application, when an abnormal sample aspiration is determined, the sampling needle is first controlled to perform a spitting action to discharge the sucked foreign matter, and then returns to perform the sample aspiration action to re-aspirate the sample. After the execution is completed again, After the sample suction action, the sample suction volume of the sampling needle may be the normal sample suction volume, thereby effectively reducing the frequency of maintenance, reducing the time cost of maintenance personnel, and also helping to improve the accuracy of sample suction.

It can be seen from the above that the sampling control method provided by the embodiment of the present application, in the process of controlling the sampling needle to perform the current sampling task, after controlling the sampling needle to complete the sample suction action, according to the characteristic value of the sampling needle's characteristic parameters after the sample is suctioned Determine whether the current sample suction volume of the sampling needle is the normal sample suction volume. When it is determined that the sample suction volume of the sampling needle is the normal sample suction volume, control the sample needle to be removed from the sample container and move the sampling needle. Go to the dropping position to drop the sample to complete the current sampling task. Otherwise, control the sampling needle to perform the spitting action, and after the sampling needle completes the spitting action, control the sampling needle to return Executing the sample suction action means re-executing the sample suction action in the current sampling task. Therefore, the sampling control method can improve the accuracy of sample suction and reduce equipment maintenance time.

Please refer to FIG. 2 , which is a schematic flow chart of a sample control method according to another embodiment of the present application. In this embodiment, S04 may specifically include S041, S02, S06 and S08 are the same as the above description, and will not be described again here. The detailed description of S041 is as follows.

S041: Determine whether the sample suction volume of the sampling needle is an abnormal sample suction volume based on the difference between the characteristic value after sample suction and the characteristic value before sample suction. The characteristic value before sample suction is the sample suction volume of the sampling needle. The value corresponding to the characteristic parameter before executing the current sample aspiration action.

The characteristic value before sample suction is the value corresponding to the characteristic parameter of the sampling needle before the sampling needle performs the sample suction action. The difference between the characteristic value after sample aspiration and the characteristic value before sample aspiration refers to the change value of the characteristic value of the characteristic parameter of the sample aspiration needle before and after sample aspiration. For example, the difference between the characteristic value after sample suction and the characteristic value after sample suction can be calculated to obtain the corresponding difference result, and then the sample suction volume in the sampling needle is determined based on the difference result, and then Compare the sample suction volume in the sampling needle with the reference sample suction volume corresponding to the current sampling task. If the error between the sample suction volume in the sampling needle and the reference sample suction volume is within the allowable Within the error range, it means that the current sample suction volume of the sampling needle is a normal sample suction volume; otherwise, it means that the sample suction volume of the sampling needle is an abnormal sample suction volume.

Further, in some embodiments, before performing S041, the sampling control method further includes: before controlling the sampling needle to perform a sample suction action, obtain the characteristic parameter in the sampling needle, obtain the The characteristic value before sampling corresponding to the characteristic parameter. The characteristic value before sample suction is a value preset by the sampling equipment that implements the sampling control method, or may be a value obtained by detecting the characteristic parameter before the sampling needle performs the sample suction action by a sampling volume detection component.

In some embodiments, the characteristic parameter in the sampling control method is the pressure in the sampling needle, and the characteristic value after sample suction is the current pressure in the sampling needle after the sample suction action is performed. The pressure value when aspirating a sample amount of the sample to be measured. The characteristic value before sample suction is the pressure value of the sampling needle when there is no sample to be measured before performing the sample suction action. Specifically, after the sampling needle completes the sample suction action, the pressure inside the sampling needle is detected by controlling the pressure detection component to obtain the corresponding pressure value, that is, the characteristic value after sample suction is obtained. The pressure detection component includes a pressure sensor, etc. The pressure detection component can directly detect the pressure value in the sampling needle, or can detect the pressure value in the sampling pipeline connected to the sampling needle as the pressure value in the sampling needle. Because the sampling needle is connected to the sampling pipeline, the pressure value in the sampling needle and the pressure value in the sampling pipeline can be considered to be equal or relatively close.

In some embodiments, the characteristic parameter in the sampling control method is the liquid level height of the sample to be measured in the sampling needle, and the characteristic value after aspiration is the characteristic value of the sampling needle after the sample aspiration action is performed. , the liquid level height of the sample to be measured. The pre-sampling characteristic value is the liquid level height of the sample to be measured in the sampling needle before performing the sample sucking action, because there is no sample to be measured in the sampling needle before performing the sample sucking action. , it can be considered that the height of the liquid level to be measured inside the sampling needle is zero before the sample suction action is performed. After the sampling needle completes the sample suction action, the liquid level detection component can be controlled to obtain the liquid level height of the sample to be measured in the sample suction needle. The liquid level detection component may be an optical coupler disposed above the sampling needle, and the height of the sample to be measured in the sampling needle is obtained by obtaining the sensing information of the optical coupler.

Further, in some embodiments, in S08, the step of controlling the sampling needle to perform a sample spitting action specifically includes: controlling the power source connected to the sampling needle to output positive air pressure to the sampling needle, so that the sampling needle The pressure inside is in a positive air pressure state, so that the sample to be tested sucked in the sampling needle is spitted out into the sample container.

The positive air pressure refers to the air pressure higher than the first atmospheric pressure, and the subsequent negative air pressure refers to the air pressure lower than one atmosphere. The air pressure in the sample to be measured in the sample container can be considered as one atmospheric pressure. When the sampling needle is in a negative air pressure state, that is, when the air pressure in the sampling needle is negative air pressure, the air pressure in the sampling needle is lower than the If the air pressure in the sample to be measured in the sample container is increased, the sample to be measured will be sucked into the sampling needle under the action of the air pressure difference, and the sampling needle will complete the sample suction action. The sample sucking action of the sampling needle refers to the action of the sampling needle sucking the sample to be measured at the sample sucking position. When the sampling needle is in a positive air pressure state, that is, when the air pressure in the sampling needle is positive, and the air pressure in the sampling needle is higher than the air pressure in the sample to be measured in the sample container, the sampling needle The sample to be measured inside is expelled from the sampling needle under the action of the air pressure difference, that is, the sampling needle spits it back into the sample container, and the sampling needle completes the sample spitting action. The sample discharging action of the sampling needle refers to the action of the sampling needle discharging the sample to be tested into the sample container at the current sample suction position.

In some embodiments, the sampling control method further includes: in the process of controlling the sampling needle to move in the direction of the current suction position, before the needle of the sampling needle moves into the sample to be tested in the sample container , controlling the pressure in the sampling needle to be in a negative air pressure state. As shown in Figure 3, it is a schematic diagram of the sampling needle suction process. Since the air pressure in the sampling needle is already negative before the sampling needle enters the sample to be measured in the sample container, when the air pressure in the sampling needle becomes negative, by the time During the movement of the sampling needle to the sample suction position, if the internal air pressure of the sampling needle is less than the first atmospheric pressure, then before the sampling needle absorbs the sample to be measured, a small section of air will be sucked into the sampling needle. Then, the sample to be tested sucked in by the sampling needle will be isolated from the pipeline liquid in the sample suction pipeline through the small section of air, thereby avoiding the impact of the pipeline liquid on the accuracy of the sampling needle's sample suction.

Further, controlling the sampling needle to perform the spitting action specifically includes: controlling the power source used to power the sampling needle to provide a preset value of positive air pressure into the sampling needle, so that the The sampling needle can discharge all the sample to be tested without discharging a small section of air in the sampling pipeline into the sample container.

In some embodiments, in S08: after the execution of the sample spitting action is completed, controlling the sampling needle to return to perform the sample sucking action specifically includes: after the execution of the sample spitting action is completed, controlling the sampling needle After moving from the current position to the preset sample suction position, the sample suction action is performed. In this embodiment, after the sampling needle performs the sample spitting action, instead of controlling the current position of the sampling needle after performing the sample spitting action to directly perform the sample sucking action, it is necessary to first control The sampling needle first moves from the current position to the preset sample suction position and then performs the sample suction action. This can prevent the sampling needle from performing a sample suction action again in the area where the original sample suction position may contain sample clots or debris, thereby sucking in an abnormal amount of sample again.

In some embodiments, controlling the sampling needle to move from the current position to a preset sample suction position specifically includes controlling the sampling needle to move in the first direction to the preset sample suction position, that is, the The preset sample suction position is located below the current position.

In some embodiments, controlling the sampling needle to move from the current position to a preset sample suction position specifically includes controlling the sampling needle to move in the second direction to the preset sample suction position, that is, the The preset sample suction position is located above the current position.

In some embodiments, controlling the sampling needle to move from the current position to a preset sample suction position specifically includes controlling the sampling needle to move to the preset position along the third direction perpendicular to the first direction. Assume a sample suction position, that is, the preset sample suction position is located on the left side of the current position.

In some embodiments, controlling the sampling needle to move from the current position to a preset sample suction position specifically includes controlling the sampling needle to move to the preset position in the fourth direction opposite to the third direction. Assume a sample suction position, that is, the preset sample suction position is located on the right side of the current position.

Please refer to FIG. 4 , which is a schematic flowchart of a sampling control method provided according to some embodiments of the present application. In this embodiment, after S08, S09 is further included.

S09: Determine the cumulative number of times the sampling needle has completed the sample suction action. If it is determined that the sample suction volume of the sampling needle is still an abnormal sample suction volume and the cumulative number of times reaches a threshold, a fault alarm message is reported.

Generally, after the cumulative number reaches 2 times, if it is still determined that the sample suction volume of the sampling needle is still an abnormal sample suction volume, it means that the current high probability is a storage failure of the sampling equipment, and a fault alarm message will be reported to remind everyone. Invite maintenance personnel to perform maintenance. In other embodiments, the sampling control method further includes controlling the cleaning device to perform a cleaning process on the sampling needle according to the fault alarm information, and then controlling the sampling needle to perform a sampling task after the cleaning process is completed.

Please refer to FIG. 5 , which is a schematic structural diagram of a sampling control device provided according to some embodiments of the present application. In this embodiment, the sampling control device includes a determination module 501, a first control module 502 and a second control module 503. The determination module 501 is used to determine whether the sample suction volume of the sampling needle is a normal sample suction volume after the sampling needle completes the current sample suction action. The first control module 502 is used to control the sampling needle to move out of the sample container and move the sampling needle to the sample dropping position when determining whether the sample suction volume of the sampling needle is a normal sample suction volume. Perform a drop sample. The second control module 503 is used to control the sampling needle to perform a sample spitting action when determining whether the sample sucking amount of the sampling needle is a normal sample sucking amount, and after the sampling needle completes the sample spitting action, The sampling needle is controlled to return to perform the sample suction action. The sample control device and the sample control method provided in the previous embodiment can achieve the same technical effect. To avoid duplication, they will not be described again here.

In some embodiments, the sampling control device further includes an alarm control module (not shown in Figure 5). The alarm control module is used to determine the cumulative number of times the sampling needle has completed the sample suction action. If If it is determined that the sample suction volume of the sampling needle is still an abnormal sample suction volume and the cumulative number of times reaches a threshold, a fault alarm message is reported.

Please refer to FIG. 6 , which is a schematic structural diagram of a sampling device provided according to an embodiment of the present application. In this embodiment, the sampling device includes a processor 61 and a memory 62. The memory 62 stores a computer program that can be executed by the processor. When the computer program is executed by the processor, the present application can be implemented. The sampling control method and sampling equipment described in any embodiment can achieve the same technical effect as the sampling control method provided in the previous embodiments. To avoid duplication, they will not be described again here.

Please refer to FIG. 7 , which is a schematic structural diagram of a sampling device provided according to other embodiments of the present application. The sampling device is used to sample the sample to be tested in the sample container 5 . The sampling device includes a sampling controller (not shown in FIG. 7 ), a sampling needle 1 and a sample suction detection component 2 for implementing the sampling control method provided according to any embodiment of the present application. The sample suction detection component 2 is connected to the sampling controller and the sampling needle 1 respectively, and is used to detect the characteristic parameters of the sampling needle after the sampling needle 1 completes the current sample suction action. The characteristic value after sample suction is obtained, and the characteristic value after sample suction is sent to the sampling controller.

Please continue to refer to FIG. 7 . In some embodiments, the sampling device further includes a sampling pipeline 3 and a power source 4 . The sampling needle 1 is connected to the power source 4 through the sampling pipeline 3, and the sample suction detection component 2 is provided on the sampling pipeline 3 to communicate with the sampling needle through the sampling pipeline 3. 1 connection. The power source 4 is connected to the sampling controller, and is used to supply water to the sampling needle 1 through the sampling pipeline 3 when the sampling needle 1 needs to perform a sample suction action according to the control of the sampling controller. Negative air pressure is delivered, and when the sampling needle 1 needs to perform a sample spitting action, positive air pressure is delivered to the sampling needle through the sampling tube 3 .

In some embodiments, the sample suction detection component 2 is a pressure detection component, such as a pressure sensor.

In some embodiments, the sample suction detection component 2 is a detection component, and the liquid level detection component is such as an optical coupler disposed above the sample container 5 .

Please refer to FIG. 8 , which is a schematic flowchart of a method for performing a sampling task by a sampling device provided according to an embodiment of the present application. The sampling device first performs the first suction action on the sample to be tested in the sample container, and then performs the sample suction volume detection to determine whether the sample suction volume of the sampling needle after the first sample suction action is normal. If it is determined that the first sampling volume of the sampling needle is the normal sampling volume, the sampling equipment will complete the current sampling task according to the normal process. If it is determined that the first aspirated sample volume is an abnormal sample aspirated volume, the sampling needle will perform a sample spitting action. After the sample spitting is completed, the sampling needle will perform a second sample sucking action, that is, the sampling needle will return to perform the sample sucking action. After the sampling needle completes the second suction action, continue to check the second suction sample volume of the sampling needle. If it is determined that the second suction sample volume of the sampling needle is the normal sample suction volume, the sampling equipment Complete the current sampling task according to the normal process. If it is determined that the secondary suction sample volume of the sampling needle is still an abnormal sample suction volume, the system where the sampling equipment is located will issue an alarm, and the cleaning device in the system will perform a cleaning process on the sampling needle.

A sample analyzer includes a detection and analysis device and a sampling device as described above. The detection and analysis device performs detection and analysis according to the sample to be tested collected by the sampling device to obtain detection and analysis data of the sample to be tested.

A computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a control device, the sampling control method as described is implemented.

It can be seen from the above that the sampling device provided by this application, in the process of executing the current sampling task, after the sampling needle performs the sample suction action, determines the current value of the sampling needle according to the characteristic value of the characteristic parameter of the sampling needle after the sample is sucked. Whether the sample suction volume is the normal sample suction volume, when it is determined that the sample suction volume of the sampling needle is the normal sample suction volume, the sample needle is removed from the sample container and moved to the sample dropping position for sample dripping. Describe the current sampling task, otherwise, the sampling needle performs the sample spitting action, and after the sampling needle completes the sample spitting action, return to perform the sample suction action, that is, re-execute the suction in the current sampling task. Such action. Therefore, the sampling equipment has high sample suction accuracy and can reduce equipment maintenance time.

In addition, in some embodiments, the present application also provides a sample analyzer, which includes the sampling device provided according to any embodiment of the present application and a detection and analysis device connected to the sampling device, The detection and analysis device performs detection and analysis on the sample to be tested collected by the sampling equipment, and obtains the detection and analysis data of the sample to be tested.

Embodiments of the present application also provide a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the above-mentioned sampling control method embodiment is implemented, and the same technology can be achieved. The effect will not be described here to avoid repetition. The computer-readable storage medium, such as read-only memory (ROM), random access memory (RandomAccessMemory, RAM), magnetic disk or optical disk, etc.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. All are covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (17)

1. A sampling control method, characterized in that it includes: In the process of controlling the sampling needle to perform the current sampling task, after the sampling needle completes the sample suction action, the post-sample suction characteristic value of the characteristic parameter of the sampling needle is obtained, and the characteristic parameter is the same as that of the sampling needle. Parameters related to the sample aspiration volume of the needle; Determine whether the sample suction volume of the sampling needle is the normal sample suction volume based on the characteristic value after sample suction; If so, control the sampling needle to be removed from the sample container, and move the sampling needle to the sample dropping position for sample dropping, completing the current sampling task; If not, the sampling needle is controlled to perform the sample spitting action, and after the sampling needle completes the sample spitting action, the sampling needle is controlled to return to perform the sample sucking action. 2. The sampling control method according to claim 1, wherein determining whether the sample suction volume of the sampling needle is a normal sample suction volume based on the characteristic value after sample suction includes: According to the difference between the characteristic value after sample suction and the characteristic value before sample suction, it is determined whether the sample suction volume of the sampling needle is an abnormal sample suction volume. The characteristic value before sample suction is the sample suction volume of the sampling needle. The value corresponding to the characteristic parameter before the current sample suction action. 3. The sampling control method according to claim 2, characterized in that, before determining whether the sample suction volume of the sampling needle is a normal sample suction volume, the method further includes: Before controlling the sampling needle to perform a sample suction action, the characteristic parameter in the sampling needle is obtained, and the characteristic value before sample suction corresponding to the characteristic parameter is obtained. 4. The sampling control method according to claim 2, wherein the characteristic parameter is the pressure in the sampling needle. 5. The sampling control method according to claim 2, wherein the characteristic parameter is the liquid level of the sample to be measured in the sampling needle. 6. The sampling control method according to claim 1, wherein the controlling the sampling needle to perform a sample spitting action includes: Control the power source connected to the sampling needle to output positive air pressure to the sampling needle, so that the pressure inside the sampling needle is in a positive air pressure state, so as to spit out the sample to be tested sucked in the sampling needle into the sample container middle. 7. The sampling control method according to claim 1, further comprising: In the process of controlling the sampling needle to move in the direction of the current suction position, before the needle of the sampling needle moves into the sample to be measured in the sample container, the pressure in the sampling needle is controlled to be in a negative air pressure state. 8. The sampling control method according to claim 1, characterized in that after controlling the sampling needle to return to perform the sample suction action, the sampling control method further includes: Determine the cumulative number of times the sampling needle has completed the sample suction action. If it is determined that the sample suction volume of the sampling needle is still an abnormal sample suction volume and the cumulative number of times reaches a threshold, a fault alarm message is reported. 9. The sampling control method according to claim 8, further comprising: According to the fault alarm information, the cleaning device is controlled to perform a cleaning process on the sampling needle. 10. The sampling control method according to claim 1, characterized in that, after the execution of the sample spitting action is completed, controlling the sampling needle to return to perform the sample sucking action includes: After the sample spitting action is completed, the sampling needle is controlled to move from the current position to the preset sample sucking position, and then the sample sucking action is performed. 11. A sampling control device, characterized in that it includes: A determination module, used to determine whether the sample suction volume of the sampling needle is the normal sample suction volume after the sampling needle completes the current sample suction action; The first control module is used to control the sampling needle to move out of the sample container when determining whether the sample suction volume of the sampling needle is the normal sample suction volume, and move the sampling needle to the sample dropping position for dripping. Sample; The second control module is used to control the sampling needle to perform a sample spitting action when determining whether the sample suction volume of the sampling needle is a normal sample suction volume, and after the sampling needle completes the sample spitting action, The sampling needle is controlled to return to perform the sample suction action. 12. A sampling device, characterized in that it includes a processor and a memory. The memory stores a computer program that can be executed by the processor. When the computer program is executed by the processor, the computer program implements claim 1 The sampling control method described in any one of to 10. 13. A sampling device, characterized in that it includes a sampling controller, a sampling needle and a sample suction detection component for implementing the sampling control method according to any one of claims 1 to 10; The sample suction detection component is connected to the sampling controller and the sampling needle respectively, and is used to detect the characteristic parameters of the sampling needle after the sampling needle completes the current sample suction action, and obtain the The characteristic value after sampling is sent to the sampling controller. 14. The sampling equipment according to claim 13, further comprising a sampling pipeline and a power source; The sampling needle is connected to the power source through the sampling pipeline, and the sample suction detection component is provided on the sampling pipeline to be connected to the sampling needle through the sampling pipeline; The power source is connected to the sampling controller and is used to deliver negative air pressure to the sampling needle through the sampling pipeline when the sampling needle needs to perform a sample suction action according to the control of the sampling controller, and When the sampling needle needs to perform a sample spitting action, positive air pressure is delivered to the sampling needle through the sampling pipeline. 15. The sampling device according to claim 13, wherein the sample suction detection component is a pressure detection component or a liquid level detection component. 16. A sample analyzer, characterized in that it includes a detection and analysis device and the sampling equipment according to any one of claims 12 to 15, and the detection and analysis device performs detection according to the sample to be tested collected by the sampling equipment. Analyze and obtain the detection and analysis data of the sample to be tested. 17. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a control device, the method of any one of claims 1 to 10 is implemented. Sampling control methods.