WO2017008249A1 - 采样机构及其空吸检测方法、样本分析仪 - Google Patents

采样机构及其空吸检测方法、样本分析仪 Download PDF

Info

Publication number
WO2017008249A1
WO2017008249A1 PCT/CN2015/083976 CN2015083976W WO2017008249A1 WO 2017008249 A1 WO2017008249 A1 WO 2017008249A1 CN 2015083976 W CN2015083976 W CN 2015083976W WO 2017008249 A1 WO2017008249 A1 WO 2017008249A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical signal
sampling needle
sampling
sample
detecting module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/083976
Other languages
English (en)
French (fr)
Inventor
黄泳
陈跃平
朱星才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Mindray Bio Medical Electronics Co Ltd
Original Assignee
Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Mindray Bio Medical Electronics Co Ltd filed Critical Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority to PCT/CN2015/083976 priority Critical patent/WO2017008249A1/zh
Priority to CN201580081158.9A priority patent/CN107709958B/zh
Publication of WO2017008249A1 publication Critical patent/WO2017008249A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices

Definitions

  • the present invention relates to a sample analysis technique, and particularly relates to a sampling mechanism of a sample analyzer and a suction detection method thereof [0002]
  • the sample analyzer analyzes the sample, and needs to collect a predetermined amount of samples from the sample container through the sampling needle, and collects a predetermined amount of the reagent from the reagent container, and the collection of the sample and the reagent are simply referred to as aspiration, and then The collected samples and reagents are injected into the reaction vessel for incubation reaction, and finally the samples after the reaction are detected.
  • the sample analyzer After collecting the sample or reagent, there may be some reason (such as the sample or reagent running out), resulting in the absence of a predetermined amount of sample or reagent, resulting in empty suction, including no sample/reagent and collection.
  • the sample/reagent did not reach the predetermined amount, and the air suction eventually caused the test result to be inaccurate. Therefore, the sample analyzer usually has a suction detection function to detect whether the sample amount reaches a predetermined amount.
  • the commonly used air suction detection scheme is as follows: Before sampling, the sampling needle performs liquid level voltage measurement to obtain a voltage value.
  • the sample needle is then subjected to the liquid level voltage measurement to obtain a voltage value v 1 ; since the sample needle is in the air before the sample is sucked, the sample needle is required to be under the remaining liquid surface after the sample is sucked, and the voltage of the two cases is certain. Differences, utilization, and. The difference can be judged whether the sample needle is under the liquid surface after the sample is sucked. If the sample needle is still under the liquid surface after the sample is sucked, it can be known that the sample needle has collected a predetermined amount of sample or reagent.
  • an embodiment provides a sampling mechanism, including:
  • a sampling component the sampling component includes a sampling needle and a detection module, and the sampling needle is fixed to the moving component
  • the detection module and the sampling needle are electrically connected, and the physical quantity of the sampling needle is detected and converted into an electrical signal;
  • a driving unit coupled to the moving component, driving the moving component to move to drive the sampling needle to move;
  • a control unit electrically connected to the driving unit, and transmitting a driving control signal to the driving unit, the control unit is further electrically connected to the detecting module, and collecting an electrical signal from the detecting module, wherein the control unit is configured according to the first electrical signal and the first The comparison value of the two electrical signals determines whether the amount of the sample reaches a predetermined amount, the first electrical signal is an electrical signal output by the detecting module before the sampling needle performs the nesting, and the second electrical signal is a detecting module after the sampling needle is finished. The electrical signal output.
  • Another embodiment further provides another sampling mechanism, including:
  • a sampling component the sampling component includes a sampling needle and a detecting module, the sampling needle is fixed on the moving component, the detecting module and the sampling needle are electrically connected, and the physical quantity of the sampling needle is detected and converted into an electrical signal.
  • a driving unit coupled to the moving component, driving the moving component to move to drive the sampling needle to move; [0017] a control unit electrically connected to the driving unit, sending a driving control signal to the driving unit, wherein the control unit is further The detection module is electrically connected, and the electrical signal is collected from the detection module, and the control unit initially determines whether the sample volume reaches a predetermined amount according to the comparison value of the first electrical signal and the second electrical signal, and according to the third electrical signal and the The comparison value of the four electrical signals preliminarily determines whether the sample volume reaches a predetermined amount, and comprehensively determines whether the sample volume reaches a predetermined amount according to the results of the two preliminary judgments, and the first electrical signal is a detection module before the sample needle performs the sample layout
  • the output electrical signal, the second electrical signal is an electrical signal output by the detecting module after the sampling needle is finished, and the third electrical signal is an electrical signal output by the detecting module before the sampling needle performs the sampling, the fourth electrical The signal is the electrical
  • an embodiment provides a sampling mechanism air suction detecting method, where the method includes
  • the detecting module detects the physical quantity of the sampling needle, and outputs the first electrical signal
  • the detecting module detects the physical quantity of the sampling needle and outputs a second electrical signal
  • the method includes: [0023] Before the sampling needle performs the sampling, the detecting module detects the physical quantity of the sampling needle, and outputs a third electrical signal; [0024] after the sampling needle is sucked, the detecting module detects the physical quantity of the sampling needle, and outputs a fourth electrical signal; [0025] determining, according to the comparison value of the third electrical signal and the fourth electrical signal, whether the sample volume reaches a predetermined amount; [0026] before the sampling needle performs the layout, the detecting module detects the physical quantity of the sampling needle, and outputs the first electrical signal.
  • the detecting module detects the physical quantity of the sampling needle, and outputs a second electrical signal; [0028] judging whether the sampling amount reaches a predetermined amount according to the comparison value of the first electrical signal and the second electrical signal; [0029] According to the results of the two preliminary judgments, it is comprehensively judged whether the sample amount reaches a predetermined amount.
  • an embodiment provides a sample analyzer comprising the sampling mechanism described above.
  • the control unit further determines the two electrical signals according to the two electrical signals. It is judged whether the aspirate amount reaches a predetermined amount, so that the air suction sample judgment of the present application is more reliable than the conventional one.
  • two electrical signals can also be collected during the two engravings before and after the sampling needle is sucked, and the control unit determines whether the sampling amount reaches a predetermined amount according to the two electrical signals, and the control unit finally combines two judgments. The combination gives a reliable judgment, thereby greatly avoiding the situation in which the air sample is missed.
  • FIG. 1 is a schematic structural diagram of a sampling mechanism according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic structural view of a portion of a sampling mechanism according to Embodiment 1 of the present application;
  • FIG. 3 is a flowchart of a hollow suction detecting method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of the working mechanism of the sampling mechanism in the first embodiment of the present application.
  • FIG. 5 is a flow chart of a method for detecting a hollow suction in the second embodiment of the present application.
  • the sample analyzer analyzes the sample, and one of the operations is sampling: a predetermined amount of the sample and the reagent are respectively collected from the sample container and the reagent container by the sampling mechanism.
  • the sampling mechanism does not collect a predetermined amount of sample or reagent for some reason (for example, the sample or reagent is used up), it will cause air suction, resulting in inaccurate detection of the sample.
  • the present application proposes a sample analyzer that includes a sampling mechanism. Compared with the traditional sampling mechanism, the sampling mechanism of the present application adopts a judging mechanism to determine whether or not to suck, thereby improving the accuracy of the detection result.
  • the sampling mechanism of the present embodiment includes a sampling component 10, a moving component 20, a driving unit 30, and a control unit 40.
  • the sampling component 10 includes a sampling needle 11 and a detecting module 12, the sampling needle 11 is fixed on the moving component 20, and the detecting module 12 and the sampling needle 11 are electrically connected, and the physical quantity of the sampling needle 11 is detected and converted into electricity.
  • Signal preferably, the electrical signal can be a voltage signal.
  • the sampling needle 11 includes a double-layer metal syringe that is nested inside and outside: an inner metal cylinder 111 and an outer metal cylinder 112, wherein the inner metal
  • the syringe 111 is used for sucking, storing, and discharging samples or reagents (hereinafter, all of the samples are exemplified), and the outer metal cylinder 112 is fixed to the moving assembly 20.
  • the inner metal cylinder 111 and the outer metal cylinder 112 can be coaxially disposed and insulated from each other, so the sampling needle 11 can be regarded as a capacitor, and the capacitance value of the capacitor is different due to the sample amount stored by the sampling needle 11 and Whether or not the sampling needle 11 contacts the liquid surface changes, so that the capacitance value of the sampling needle 11 can be used to characterize the change in the physical quantity of the sampling needle 11, and it is determined by this change whether the sampling needle contacts the liquid surface and whether a sufficient sample amount is collected.
  • the inner metal cylinder 111 of the sampling needle 11 and the outer metal cylinder 112 are electrically connected to the detecting module 12 through a wire, respectively.
  • the detection module 12 also has various implementation manners.
  • the detection module 12 is fixed on the mobile component 20, and includes an oscillator 121, a phase detector 122, a reference signal detector 123, a filter 124, and a modulus. Converter 1 25.
  • the oscillator 121 is connected to the inner metal cylinder 111 and the outer metal cylinder 112 of the sampling needle 11 by wires, so that the sampling needle 11 serves as a parameter component of the resonance circuit of the oscillator 121, that is, a pulse signal output from the oscillator 121.
  • the frequency changes with the change of the physical quantity (for example, the capacitance value) of the sampling needle 11.
  • the oscillator 121 When the capacitance value of the sampling needle 11 changes, the oscillator 121 generates a pulse signal of a corresponding frequency and inputs it to the phase detector 122. .
  • the phase detector 122 compares the pulse signal with the reference signal in the reference signal 123 and outputs a phase error signal to the filter 124.
  • the filter 124 filters the phase error signal and outputs the result to the analog-to-digital converter 125.
  • the converter 125 performs modulus on the filtered phase error signal After the conversion, an electrical signal is output for the control unit 40 to collect.
  • the oscillator 121 is a voltage controlled oscillator
  • the electrical signal output by the analog-to-digital converter 125 is a voltage signal.
  • the sampling assembly 11 may further include a syringe 13 whose output end communicates with the inner metal syringe 111 of the sampling needle 11 through a pipe, and the driving unit 30 is coupled to the syringe 13 Push the end to drive the push end to move. When the push end is driven to pull outward, the sampling needle 11 performs aspirating
  • the sampling needle 11 When the push end is driven to push inward, the sampling needle 11 performs the nesting.
  • the moving component 20 is a three-dimensional or two-dimensional moving mechanism, and can move the sampling needle 11 fixed thereon to move in a three-dimensional or two-dimensional direction, thereby moving the sampling needle 11 to a designated position to complete the aspirating and arranging. operating.
  • the moving assembly 20 can be implemented in a variety of ways, such as a rocker arm structure and a linear slider rail structure.
  • the driving unit 30 is coupled to the moving component 20 to drive the moving component 20 to move, thereby driving the sampling needle 11 to move.
  • the control unit 40 is electrically connected to the driving unit 30, and sends a driving control signal to the driving unit 30. After receiving the driving control signal, the driving unit 30 drives the moving component 20 to move according to the driving control signal to move the sampling needle to the designated position. , or drive the push end of the syringe 13 to move outward or inward by a certain distance.
  • the control unit 40 is further electrically connected to the detecting module 12, outputs circuit parameters to the detecting module 12, and collects electrical signals from the detecting module 12. The control unit 40 determines the sample according to the comparison value of the collected first electrical signal and the second electrical signal.
  • the first electrical signal is an electrical signal output by the detecting module 12 before the sampling needle 11 performs the nesting.
  • the first electrical signal may be after the sampling needle 11 moves to the reaction cup position and the execution row
  • the second electrical signal is the electrical signal output by the detecting module 12 after the sampling needle 11 is completed.
  • the second electrical signal may be the sampling pin 11 in the sampling position.
  • the control unit 40 determines whether the sampled amount reaches a predetermined amount based on the collected comparison values of the first electrical signal and the second electrical signal. In the determining mechanism, the control unit 40 may be greater than or equal to one of the comparison values. When the threshold value is set, it is considered that the sample volume reaches a predetermined amount, otherwise the sample suction mechanism is considered to be empty when the sample amount is not up to the predetermined amount. For convenience The determination is made quickly, and the comparison value may be a difference or a ratio of the first electrical signal and the second electrical signal.
  • sampling mechanism air suction detecting method (hereinafter referred to as a vacuum suction detecting method), which will be described in detail below with reference to FIGS. 3 and 4. .
  • Step S100 aspirating.
  • a sample tube 50 for holding a sample is placed on the sample holder 51.
  • a reaction cup 52 for holding a sample and a reagent is placed on the reaction plate 53, and the sample and the reagent are successively injected into the reaction cup 52. The reaction is incubated.
  • the reaction cup 52 is a disposable reaction cup to avoid residual liquid at the bottom of the reaction cup, thereby affecting the following detection.
  • the driving unit 30 drives the moving component 20 to move according to the driving control signal sent from the control unit 40, and drives the sampling needle 11 to move horizontally and vertically, so that the lower end of the sampling needle 11 (not connected to the syringe 13) One end) moves to the liquid level in the sample tube 50, and the driving unit 30 drives the push end of the syringe 13 to pull out a distance according to the driving control signal sent from the control unit 40 to generate a suction force, so that the sampling needle 11 sucks a predetermined amount. sample.
  • the driving unit 30 further drives the moving component 20 to move according to the driving control signal sent from the control unit 40, and moves the sampling needle 11 upward to the sample tube 50, and the sample suction operation is completed.
  • Step S201 Prepare the layout. After the sampling needle 11 is sucked, it moves from above the sample tube 50 performing the aspirating operation to the position where the reaction cup 50 where the sampling operation is performed, and controls the sampling needle 11 to move to the reaction cup position and stops above the reaction cup;
  • Step S202 The control unit 40 collects the current electrical signal from the detecting module 12 as the first electrical signal.
  • the sampling needle 11 is controlled to remain above the cuvette 52 for a period of, for example, 200 microseconds, during which the control unit 40 detects the current electrical signal from the detection module 12 as the first electrical signal. signal.
  • Step S203 Control the sampling needle 11 to move down from the top of the reaction cup to the layout position, and perform the layout. After the sampling needle 11 is moved downward from above the cuvette 52 to the sampling position, the driving unit 30 drives the pushing end of the syringe 13 to advance inward for a distance to generate a thrust, so that the sampling needle 11 injects a predetermined amount of the sample into the cuvette 52. Finish the layout.
  • Step S204 After the layout is completed, the sampling position is stopped for a predetermined time, for example, 200 microseconds, during which the control unit collects the current electrical signal from the detecting module 12 as the second electrical signal.
  • Step S210 Comparing the first electrical signal with the second electrical signal, and determining whether the sample amount reaches a predetermined amount according to the comparison value of the first electrical signal and the second electrical signal.
  • the control unit 40 calculates the first The difference between an electrical signal and the second electrical signal, when the difference is greater than or equal to the set threshold ⁇ , makes a judgment that the sample volume reaches a predetermined amount, indicating that the normal suction and/or layout is successful in this operation, otherwise the suction is made. The judgment that the sample quantity has not reached the predetermined amount indicates that the operation of the air suction and/or the layout failure has failed.
  • control unit 40 may further calculate a ratio of the first electrical signal to the second electrical signal, and determine whether to suction according to the ratio.
  • the process proceeds to step S301, and the next operation (for example, a suction reagent or a stirring operation) is performed.
  • the suction is performed, and step S302 is performed to perform an alarm. The same alarm can also suspend the operation of the sampling needle.
  • the sampling mechanism of the present invention and the air suction detecting method and the sample analyzer respectively collect the first electrical signal and the second electrical signal before and after the sampling needle layout, respectively, in addition to solving the existing In the technology, it is easy to cause the air-sucking sample to miss the report, and it can also solve the problem that when the sample is gel-like, it is not easy to judge whether the sample is properly sucked and sampled.
  • the sampling mechanism of the present embodiment and the air suction detecting method and the sample analyzer also collect two electrical signals for determining the normal suction before and after the sampling. It is still empty, as explained below.
  • the control unit 40 of the present embodiment initially determines whether the sample amount reaches a predetermined amount according to the comparison value of the first electrical signal and the second electrical signal, and on the other hand, according to the third power.
  • the comparison value of the signal and the fourth electrical signal preliminarily determines whether the aspirate amount reaches a predetermined amount, and comprehensively determines whether the aspirate amount reaches a predetermined amount according to the results of the two preliminary judgments.
  • the control unit 40 performs the preliminary judgment results twice. In one case, if the sample volume does not reach the predetermined amount, it is considered that the sample volume has not reached the predetermined amount (ie, suction).
  • the sample amount is considered to be a predetermined amount; wherein, the first electrical signal is an electrical signal output by the detection module 12 before the sampling needle 11 performs the layout, The second electrical signal is an electrical signal output by the detecting module 12 after the sampling needle 11 is completed, and the third electrical signal is an electrical signal output by the detecting module 12 before the sampling needle 1 1 performs the sampling, and the fourth electrical signal is the sampling needle 11 sampling. After the completion, the electrical signal output by the module 12 is detected.
  • the specific detection process is as shown in FIG. 5, and includes the following steps.
  • the detecting module 12 detects the physical quantity of the sampling needle 11, and outputs the third telecommunications Specifically, it includes steps S101, S102:
  • Step S101 Control the sampling needle 11 to move to the sample tube position and stop above the sample tube;
  • Step S102 The current electrical signal is collected from the detection module 12 as a third electrical signal.
  • the detecting module 12 After the sampling needle 11 is sucked, the detecting module 12 detects the physical quantity of the sampling needle, and outputs a fourth electrical signal. Specifically, it includes steps S103 and S104:
  • Step S103 Controlling the sampling needle 11 to move downward from above the sample tube 50 to the aspiration position, and performing the aspirating sample, wherein the sampling position refers to the position at which the sampling needle 11 performs the sampling operation in the sample tube 50, and the sampling position It is determined according to the sample amount and the sample amount in the sample tube 50, which causes the sampling needle 11 to remain under the liquid surface after performing the sample suction at the sample suction position.
  • Step S104 The predetermined time interval is stopped after the sample is taken, during which the current signal number is collected from the detection module 12 as the fourth electrical signal.
  • Step S110 Initially determine whether the sample amount reaches a predetermined amount according to the comparison value of the third electrical signal and the fourth electrical signal.
  • the judgment method can be the same as step S210 in the first embodiment.
  • the process proceeds to step S201, the layout is prepared, and steps S202-S210 are continued, and the first electrical signal and the second electrical signal are collected from the detection module 12 before and after the layout, respectively, and it is determined whether The specific content of each step is the same as that of the first embodiment, and will not be described here.
  • the suction is performed, and step S302 is performed to perform an alarm.
  • the first time before the sample is taken the electric signal is collected to determine whether the sample amount reaches a predetermined amount
  • the second time before the sample is collected the electric signal is collected to determine whether the sample amount reaches a predetermined amount.
  • it will alarm and stop the next nesting operation and the second judgment.
  • it may be judged as empty suction for the first time, no alarm is given, but the next and second judgments are continued, and after the second judgment is made, the first time is synthesized.
  • the judgments if one of the judgments is a result of empty suction, an alarm is issued, and only when the judgment result of both times is that the suction sample reaches a predetermined amount, the next operation is continued.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

一种采样机构及其空吸检测方法、样本分析仪,所述采样机构包括移动组件(20)、采样组件(10)、驱动单元(30)和控制单元(40),所述采样机构在排样前后和/或吸样前后分别采集表征采样针物理量的电信号,用来判断吸样量是否达到预定量,还在排样前后采集电信号来判断吸样量是否达到预定量,解决了传统技术中空吸样本漏报的情况。

Description

釆样机构及其空吸检测方法、 样本分析仪 技术领域
[0001] 本发明涉及样本分析技术, 具体涉及样本分析仪的采样机构及其空吸检测方法 [0002]
[0003] 背景技术
[0004] 样本分析仪在对样本进行分析吋需要通过采样针从样本容器中采集预定量的样 本, 从试剂容器中采集预定量的试剂, 对样本和试剂的采集都简称为吸样, 然 后将采集的样本和试剂注入反应容器中进行孵育反应, 最后对反应后的样本进 行检测。 在对样本或试剂进行采集吋, 可能会由于某些原因 (例如样本或试剂 用完) 导致未采集到预定量的样本或试剂, 造成空吸, 空吸包括未采集到样本 / 试剂和采集的样本 /试剂未达到预定量, 空吸最后导致检测结果不准确。 因此样 本分析仪通常具备空吸检测功能, 以检测吸样量是否达到预定量。
[0005] 通常采用的空吸检测方案为: 吸样前采样针进行液面电压测量得到一个电压值
V。, 吸样完成后采样针再进行液面电压测量得到一个电压值 v 1 ; 由于吸样前采 样针在空气中, 吸样后要求采样针在剩余液面下, 这两种情况的电压存在一定 差异, 利用 ,与 。的差值可以判断采样针吸样后是否在液面下, 如果采样针吸 样后仍在液面下, 即可知采样针采集到了预定量的样本或试剂。 但在吸样过程 中, 如果采样针碰到了试管管壁等非预期内的物体吋, 或采样针中或试管内存 在气泡, 即使发生了采样针空吸, 采样针在吸样前后得到的电压差值与采样针 顺利采样过程中得到的电压差值是接近的, 这样会引起空吸样本漏报的情况。
[0006]
[0007] 发明内容
[0008] 根据第一方面, 一种实施例中提供一种采样机构, 包括:
[0009] 移动组件;
[0010] 采样组件, 所述采样组件包括采样针和检测模块, 所述采样针固定在移动组件 上, 检测模块和采样针电连接, 实吋检测采样针的物理量的变化, 并转换为电 信号;
[0011] 驱动单元, 其耦合到移动组件, 驱动移动组件移动, 以带动采样针移动;
[0012] 控制单元, 其与驱动单元电连接, 向驱动单元发送驱动控制信号, 所述控制单 元还与检测模块电连接, 从检测模块采集电信号, 所述控制单元根据第一电信 号和第二电信号的比较值判断吸样量是否达到预定量, 所述第一电信号为采样 针执行排样之前检测模块输出的电信号, 所述第二电信号为采样针排样完毕后 检测模块输出的电信号。
[0013] 另一种实施例还提供另一种采样机构, 包括:
[0014] 移动组件;
[0015] 采样组件, 所述采样组件包括采样针和检测模块, 所述采样针固定在移动组件 上, 检测模块和采样针电连接, 实吋检测采样针的物理量的变化, 并转换为电 信号;
[0016] 驱动单元, 其耦合到移动组件, 驱动移动组件移动, 以带动采样针移动; [0017] 控制单元, 其与驱动单元电连接, 向驱动单元发送驱动控制信号, 所述控制单 元还与检测模块电连接, 从检测模块采集电信号, 其控制单元一方面根据第一 电信号和第二电信号的比较值初步判断吸样量是否达到预定量, 另一方面根据 第三电信号和第四电信号的比较值初步判断吸样量是否达到预定量, 并根据两 次初步判断的结果综合判断出吸样量是否达到预定量, 所述第一电信号为采样 针执行排样之前检测模块输出的电信号, 所述第二电信号为采样针排样完毕后 检测模块输出的电信号, 所述第三电信号为采样针执行吸样之前检测模块输出 的电信号, 所述第四电信号为采样针吸样完毕后检测模块输出的电信号。
[0018] 根据第二方面, 一种实施例中提供一种采样机构空吸检测方法, 所述方法包括
[0019] 当采样针执行排样之前, 检测模块检测采样针的物理量, 输出第一电信号;
[0020] 当采样针排样完毕后, 检测模块检测采样针的物理量, 输出第二电信号;
[0021] 根据第一电信号和第二电信号的比较值判断吸样量是否达到预定量。
[0022] 在另一种实施例中, 所述方法包括: [0023] 当采样针执行吸样之前, 检测模块检测采样针的物理量, 输出第三电信号; [0024] 当采样针吸样完毕后, 检测模块检测采样针的物理量, 输出第四电信号; [0025] 根据第三电信号和第四电信号的比较值初步判断吸样量是否达到预定量; [0026] 当采样针执行排样之前, 检测模块检测采样针的物理量, 输出第一电信号; [0027] 当采样针排样完毕后, 检测模块检测采样针的物理量, 输出第二电信号; [0028] 根据第一电信号和第二电信号的比较值初步判断吸样量是否达到预定量; [0029] 根据两次初步判断的结果综合判断出吸样量是否达到预定量。
[0030] 根据第三方面, 一种实施例中提供一种样本分析仪, 包括上述的采样机构。
[0031]
[0032] 依据上述实施例的采样机构及其空吸检测方法、 样本分析仪, 由于检测模块在 采样针排样前后这两个吋刻采集两个电信号, 控制单元再根据这两个电信号判 断吸样量是否达到预定量, 使得本申请的空吸样本判断比传统的更加可靠。 另 外的实施例中, 还可以在采样针吸样前后这两个吋刻也采集两个电信号, 控制 单元根据这两个电信号判断吸样量是否达到预定量, 控制单元最后综合两次判 断结合给出一个可靠地判断, 从而极大程序地避免了空吸样本漏报的情况。
[0033]
[0034] 附图说明
[0035] 图 1为本申请实施例一中采样机构的结构示意;
[0036] 图 2为本申请实施例一中采样机构局部的结构示意图;
[0037] 图 3为本申请实施例一中空吸检测方法的流程图;
[0038] 图 4为本申请实施例一中采样机构工作吋的示意图;
[0039] 图 5为本申请实施例二中空吸检测方法的流程图。
[0040]
[0041] 具体实施方式
[0042] 样本分析仪在对样本进行分析吋, 其中一个操作是采样: 通过采样机构分别从 样本容器、 试剂容器中采集预定量的样本、 试剂。 当采样机构因某些原因 (例 如样本或试剂用完) 导致未采集到预定量的样本或试剂吋, 会造成空吸, 从而 导致对样本的检测结果不准确。 [0043] 本申请提出一种样本分析仪, 其包括采样机构。 相对于传统的采样机构, 本申 请的采样机构在排样吋采取一个判断机制来判断是否空吸, 从而提高检测结果 的准确性。 下面通过实施例结合附图来进一步说明。
[0044]
[0045] 实施例一
[0046] 请参考图 1和图 2, 本实施公幵的采样机构包括采样组件 10、 移动组件 20、 驱动 单元 30和控制单元 40。
[0047] 采样组件 10包括采样针 11和检测模块 12, 采样针 11固定在移动组件 20上, 检测 模块 12和采样针 11电连接, 实吋检测采样针 11的物理量的变化, 并转化为电信 号, 较优地, 电信号可为电压信号。
[0048] 采样针 11有多种实现方式, 在本实施例中, 采样针 11包括内外嵌套的双层金属 针筒: 内层金属针筒 111和外层金属针筒 112, 其中内层金属针筒 111用于吸取、 临吋储存和排出样本或试剂 (下面不妨都以样本为例) , 外层金属针筒 112固定 在移动组件 20上。 内层金属针筒 111和外层金属针筒 112可同轴设置并相互之间 绝缘, 因此采样针 11可视为一个电容器, 此电容器的电容值会因采样针 11储存 的样本量的不同以及采样针 11是否接触液面而改变, 因此可以用采样针 11的电 容值来表征采样针 11物理量的变化, 通过这种变化来判断采样针是否接触液面 以及是否采集到足够的样本量。 为了检测采样针 11的电容值, 将采样针 11的内 层金属针筒 111和外层金属针筒 112分别通过一导线与检测模块 12电连接。
[0049] 检测模块 12也有多种实现方式, 在本实施例中, 检测模块 12固定在移动组件 20 上, 其包括振荡器 121、 鉴相器 122、 参考信号器 123、 滤波器 124和模数转换器 1 25。 振荡器 121与采样针 11的内层金属针筒 111、 外层金属针筒 112用导线相连, 从而将采样针 11作为振荡器 121的谐振电路的参数元件, 即振荡器 121输出的脉 冲信号的频率会随着采样针 11的物理量 (例如电容值) 的变化而变化, 当采样 针 11的电容值改变吋, 振荡器 121就会产生一个相应频率的脉冲信号, 并输入到 鉴相器 122中。 鉴相器 122将上述脉冲信号与参考信号器 123中的参考信号进行相 位比较后输出相位误差信号到滤波器 124, 滤波器 124对相位误差信号进行滤波 后输出给模数转换器 125, 模数转换器 125对经滤波后的相位误差信号进行模数 转换后输出一电信号以供控制单元 40采集, 当振荡器 121为压控振荡器吋, 模数 转换器 125输出的电信号为电压信号。
[0050] 为了顺利地进行吸样和排样, 采样组件 11还可以包括注射器 13, 注射器 13的输 出端通过管道与采样针 11的内层金属针筒 111连通, 驱动单元 30耦合到注射器 13 的推动端, 以驱动推动端移动。 当推动端被驱动向外拉吋, 采样针 11进行吸样
, 当推动端被驱动向里推吋, 采样针 11进行排样。
[0051] 移动组件 20为三维或二维的移动机构, 可带动固定于其上的采样针 11在三维或 二维方向进行移动, 从而使采样针 11移动到指定位置以完成吸样和排样操作。 移动组件 20有多种实现方式, 例如摇臂结构和直线滑块导轨结构等。
[0052] 驱动单元 30耦合到移动组件 20, 驱动移动组件 20移动, 从而带动采样针 11移动
[0053] 控制单元 40与驱动单元 30电连接, 向驱动单元 30发送驱动控制信号, 驱动单元 30接收到驱动控制信号后, 根据驱动控制信号驱动移动组件 20移动从而将采样 针移动到指定的位置, 或者驱动注射器 13的推动端向外或向内移动一定距离。 控制单元 40还与检测模块 12电连接, 向检测模块 12输出电路参数并从检测模块 1 2采集电信号, 控制单元 40根据采集到的第一电信号和第二电信号的比较值判断 吸样量是否达到预定量, 其中, 第一电信号为采样针 11执行排样之前检测模块 1 2输出的电信号, 具体地, 第一电信号可为采样针 11移动到反应杯位后和执行排 样之前控制单元 40从检测模块 12采集的电信号, 第二电信号为采样针 11排样完 毕后检测模块 12输出的电信号, 具体地, 第二电信号可为采样针 11在排样位排 样完毕后控制单元 40从检测模块 12采集的电信号, 排样位为采样针 11向反应杯 内执行排样操作吋所在位置, 采样针执行排样操作吋, 应位于反应杯内某一高 度的位置, 该位置称为排样位, 排样位根据检测项目和具体操作的不同而不同 , 使得采样针 11在排样前在空气中, 排样后在反应杯的液面下。 这样采集到的 第二电信号, 其与第一电信号的比较值更加易于判断。 如上所述, 控制单元 40 根据采集到的第一电信号和第二电信号的比较值判断吸样量是否达到预定量, 在此判断机制中, 控制单元 40可在上述比较值大于或等于一设定阈值吋, 认为 吸样量达到预定量, 否则认为吸样量未达到预定量即采样机构空吸。 为了方便 快捷地进行判断, 上述比较值可为第一电信号和第二电信号的差值或比值。
[0054] 上述内容为本实施例公幵的采样机构, 相应地, 本实施例还公幵了一种采样机 构空吸检测方法 (以下简称空吸检测方法) , 下面结合图 3、 4详细说明。
[0055] 步骤 S100, 吸样。 请参照图 4, 图中样本架 51上放置有用于盛装样本的样本管 5 0, 反应盘 53上放置有用于盛装样本和试剂的反应杯 52, 样本和试剂先后被注入 到反应杯 52后进行孵育反应, 本实施例中, 反应杯 52采用一次性反应杯, 以避 免反应杯底部残留液体, 从而影响下面的检测。 在执行吸样操作吋, 驱动单元 3 0根据控制单元 40发出的驱动控制信号驱动移动组件 20移动, 带动采样针 11进行 水平、 垂直方向移动, 使采样针 11的下端 (未与注射器 13连接的一端) 移动到 样本管 50里的液面, 驱动单元 30再根据控制单元 40发出的驱动控制信号驱动注 射器 13的推动端向外拉出一段距离, 产生一吸力, 使采样针 11吸取预定量的样 本。 驱动单元 30再根据控制单元 40发出的驱动控制信号驱动移动组件 20移动, 使采样针 11向上移动到样本管 50上方, 吸样操作执行完毕。
[0056] 步骤 S201 : 准备排样。 采样针 11吸样完毕后, 从执行吸样操作的样本管 50上方 移动到执行排样操作的反应杯 50所在的位置, 控制采样针 11移动到反应杯位后 停止在反应杯上方;
[0057] 步骤 S202: 控制单元 40从检测模块 12采集当前的电信号作为第一电信号。 为了 稳定地采集到第一电信号, 控制采样针 11在反应杯 52上方停留一段吋间例如 200 微秒, 在这 200微秒内控制单元 40从检测模块 12检测当前的电信号作为第一电信 号。
[0058] 步骤 S203: 控制采样针 11从反应杯上方向下移动到排样位, 执行排样。 采样针 11从反应杯 52上方向下移动到排样位后, 驱动单元 30驱动注射器 13的推动端向 内推进一段距离, 产生一推力, 使采样针 11向反应杯 52注入预定量的样本, 完 成排样。
[0059] 步骤 S204: 排样完毕后在排样位停留预定吋间,例如 200微秒, 在此期间控制单 元从检测模块 12采集当前的电信号作为第二电信号。
[0060] 步骤 S210: 将第一电信号和第二电信号进行比较, 根据第一电信号和第二电信 号的比较值判断吸样量是否达到预定量。 在一具体实例中, 控制单元 40计算第 一电信号和第二电信号的差值, 当差值大于或等于设定阈值吋, 作出吸样量达 到预定量的判断, 说明本次操作正常吸样和 /或排样成功, 否则作出吸样量未达 到预定量的判断, 说明说明本次操作空吸和 /或排样失败。 在有的具体实例中, 控制单元 40还可以计算第一电信号和第二电信号的比值, 根据比值判断是否空 吸。 当判断吸样量达到预定量吋, 继续执行步骤 S301, 执行下一操作 (例如吸 试剂或搅拌操作) , 当判断吸样量未达到预定量造成空吸吋, 执行步骤 S302, 进行报警, 在报警的同吋还可以暂停采样针的操作。
[0061] 本实施公幵的采样机构及其空吸检测方法、 样本分析仪, 在采样针排样的前后 这两个吋刻分别来采集第一电信号和第二电信号, 除了解决现有技术中容易引 起空吸样本漏报的情况, 还可以解决当样本为凝胶状吋不容易判断是否正常吸 样和排样的问题。
[0062]
[0063] 实施例二
[0064] 在实施例一的基础, 本实施例公幵的采样机构及其空吸检测方法、 样本分析仪 , 在吸样前后这两个吋刻也采集两个电信号用于判断是正常吸样还是空吸, 下 面具体说明。
[0065] 在实施例一的基础上, 本实施例的控制单元 40—方面根据第一电信号和第二电 信号的比较值初步判断吸样量是否达到预定量, 另一方面根据第三电信号和第 四电信号的比较值初步判断吸样量是否达到预定量, 并根据两次初步判断的结 果综合判断出吸样量是否达到预定量, 具体地, 控制单元 40在两次初步判断结 果中有一次为吸样量未达到预定量吋, 则认为吸样量未达到预定量 (即空吸)
, 在两次初步判断结果都为吸样量达到预定量吋, 则认为吸样量达到了预定量 ; 其中, 第一电信号为采样针 11执行排样之前检测模块 12输出的电信号, 第二 电信号为采样针 11排样完毕后检测模块 12输出的电信号, 第三电信号为采样针 1 1执行吸样之前检测模块 12输出的电信号, 第四电信号为采样针 11吸样完毕后检 测模块 12输出的电信号。
[0066] 其具体检测过程如图 5所示, 包括以下步骤。
[0067] 当采样针 11执行吸样之前, 检测模块 12检测采样针 11的物理量, 输出第三电信 号, 具体地, 其包括步骤 S 101、 S102:
[0068] 步骤 S101 : 控制采样针 11移动到样本管位并停止在样本管上方;
[0069] 步骤 S102: 从检测模块 12采集当前的电信号作为第三电信号。
[0070] 当采样针 11吸样完毕后, 检测模块 12检测采样针的物理量, 输出第四电信号, 具体地, 其包括步骤 S 103、 S104:
[0071] 步骤 S103: 控制采样针 11从样本管 50上方向下移动到吸样位, 执行吸样, 吸样 位是指采样针 11在样本管 50内执行吸样操作的位置, 吸样位根据样本管 50内的 样本量和吸样量确定, 其使得采样针 11在吸样位执行吸样后, 仍然处于液面下
[0072] 步骤 S104: 吸样完毕后停止预定吋间, 在此期间从检测模块 12采集当前的电信 号作为第四电信号。
[0073] 步骤 S110: 根据第三电信号和第四电信号的比较值初步判断吸样量是否达到预 定量。 判断方法可与实施例一中的步骤 S210相同。 当判断吸样量达到预定量吋 , 继续执行步骤 S201 , 准备排样, 并继续执行步骤 S202-S210, 分别在排样前后 从检测模块 12采集第一电信号和第二电信号, 并判断是否空吸, 各步骤的具体 内容与实施例一相同, 在此不再赘述; 当判断吸样量未达到预定量造成空吸吋 , 执行步骤 S302, 进行报警。
[0074] 本实施例在吸样前后采集电信号进行吸样量是否达到预定量的第一次判断, 在 排样前后采集电信号进行吸样量是否达到预定量的第二次判断, 在第一次判断 为空吸吋, 就进行报警, 并停止接下来的排样操作和第二次判断。 在另一些实 施例中, 还可以在第一次判断为空吸吋, 不进行报警, 而是继续接下来的排样 和第二次判断, 在作出第二次判断后, 再综合第一次判断的结果, 若有一次判 断的结果为空吸就进行报警, 只有当两次的判断结果都为吸量样达到预定量吋 , 才继续执行下一操作。
[0075] 本实施例在吸样前后以及排样前后, 都进行吸样量是否达到预定量的判断, 并 综合两次判断的结果来作出最终的判断, 相比实施例一, 判断的结果更加可靠
[0076] 以上应用了具体个例对本发明进行阐述, 只是用于帮助理解本发明, 并不用以 限制本发明。 对于本领域的一般技术人员, 依据本发明的思想, 可以对上述具 体实施方式进行变化。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种采样机构,其特征在于包括:
移动组件 (20) ;
采样组件 (10) , 所述采样组件 (10) 包括采样针 (11) 和检测模块 (12) , 所述采样针 (11) 固定在移动组件 (20) 上, 检测模块 (12 ) 和采样针 (11) 电连接, 实吋检测采样针 (11) 的物理量的变化, 并转换为电信号;
驱动单元 (30) , 其耦合到移动组件 (20) , 驱动移动组件 (20) 移 动, 以带动采样针 (11) 移动;
控制单元 (40) , 其与驱动单元 (30) 电连接, 向驱动单元 (30) 发 送驱动控制信号, 所述控制单元 (40) 还与检测模块 (12) 电连接, 从检测模块 (12) 采集电信号, 所述控制单元 (40) 根据第一电信号 和第二电信号的比较值判断吸样量是否达到预定量, 所述第一电信号 为采样针 (11) 执行排样之前检测模块 (12) 输出的电信号, 所述第 二电信号为采样针 (11) 排样完毕后检测模块 (12) 输出的电信号。
[权利要求 2] 如权利要求 1所述的采样机构, 其特征在于, 所述控制单元 (40) 在 所述比较值大于或等于设定阈值吋, 认为吸样量达到预定量, 否则认 为吸样量未达到预定量。
[权利要求 3] —种采样机构,其特征在于包括:
移动组件 (20) ;
采样组件 (10) , 所述采样组件 (10) 包括采样针 (11) 和检测模块 (12) , 所述采样针 (11) 固定在移动组件 (20) 上, 检测模块 (12 ) 和采样针 (11) 电连接, 实吋检测采样针 (11) 的物理量的变化, 并转换为电信号;
驱动单元 (30) , 其耦合到移动组件 (20) , 驱动移动组件 (20) 移 动, 以带动采样针 (11) 移动;
控制单元 (40) , 其与驱动单元 (30) 电连接, 向驱动单元 (30) 发 送驱动控制信号, 所述控制单元 (40) 还与检测模块 (12) 电连接, 从检测模块 (12) 采集电信号, 所述控制单元 (40) —方面根据第一 电信号和第二电信号的比较值初步判断吸样量是否达到预定量, 另一 方面根据第三电信号和第四电信号的比较值初步判断吸样量是否达到 预定量, 并根据两次初步判断的结果综合判断出吸样量是否达到预定 量, 所述第一电信号为采样针 (11) 执行排样之前检测模块 (12) 输 出的电信号, 所述第二电信号为采样针 (11) 排样完毕后检测模块 ( 12) 输出的电信号, 所述第三电信号为采样针 (11) 执行吸样之前检 测模块 (12) 输出的电信号, 所述第四电信号为采样针 (11) 吸样完 毕后检测模块 (12) 输出的电信号。
[权利要求 4] 如权利要求 3所述的采样机构, 其特征在于, 所述控制单元 (40) 在 两次初步判断结果中有一次为吸样量未达到预定量吋, 则认为吸样量 未达到预定量, 在两次初步判断结果都为吸样量达到预定量吋, 则认 为吸样量达到了预定量。
[权利要求 5] 如权利要求 1-4中任一项所述的采样机构, 其特征在于, 所述采样针 的物理量的变化是指采样针电容的变化, 所述电信号为电压信号。
[权利要求 6] 如权利要求 1-4中任一项所述的采样机构, 其特征在于, 所述第一电 信号为采样针 (11) 移动到反应杯位后和执行排样之前控制单元 (40 ) 从检测模块 (12) 采集的电信号, 所述第二电信号为采样针 (11) 在排样位排样完毕后控制单元 (40) 从检测模块 (12) 采集的电信号
[权利要求 7] 如权利要求 1-4中任一项所述的采样机构, 其特征在于, 采样针 (11
) 包括内外嵌套的双层金属针筒, 所述双层金属针筒相互间绝缘并分 别通过导线电连接至检测模块 (12) , 所述检测模块 (12) 固定在移 动组件 (20) 上; 所述采样组件 (10) 还包括注射器 (13) , 所述注 射器 (13) 的输出端通过管道与采样针 (11) 的内层针筒连通, 所述 驱动单元 (30) 耦合到注射器 (13) 的推动端, 驱动推动端移动。
[权利要求 8] —种采样机构空吸检测方法,所述采样机构包括采样针 (11) 和检测 模块 (12) , 检测模块 (12) 和采样针 (11) 电连接, 检测模块 (12 ) 实吋检测采样针 (11) 的物理量的变化, 并转换为电信号, 其特征 在于所述方法包括:
当采样针 (11) 执行排样之前, 检测模块 (12) 检测采样针 (11) 的 物理量, 输出第一电信号;
当采样针 (11) 排样完毕后, 检测模块 (12) 检测采样针 (11) 的物 理量, 输出第二电信号;
根据第一电信号和第二电信号的比较值判断吸样量是否达到预定量。
[权利要求 9] 一种采样机构空吸检测方法,所述采样机构包括采样针 (11) 和检测 模块 (12) , 检测模块 (11) 和采样针 (12) 电连接, 检测模块 (12 ) 实吋检测采样针 (11) 的物理量的变化, 并转换为电信号, 其特征 在于所述方法包括:
当采样针 (11) 执行吸样之前, 检测模块 (12) 检测采样针 (11) 的 物理量, 输出第三电信号;
当采样针 (11) 吸样完毕后, 检测模块 (12) 检测采样针的物理量, 输出第四电信号;
根据第三电信号和第四电信号的比较值初步判断吸样量是否达到预定 当采样针 (11) 执行排样之前, 检测模块 (12) 检测采样针 (11) 的 物理量, 输出第一电信号;
当采样针 (11) 排样完毕后, 检测模块 (12) 检测采样针 (11) 的物 理量, 输出第二电信号;
根据第一电信号和第二电信号的比较值初步判断吸样量是否达到预定 根据两次初步判断的结果综合判断出吸样量是否达到预定量。
[权利要求 10] 如权利要求 8或 9所述的方法, 其特征在于, 所述采样针的物理量的 变化是指采样针电容的变化, 所述电信号为电压信号。
[权利要求 11] 如权利要求 8或 9所述的方法, 其特征在于,
所述第一电信号和第二电信号的检测过程包括: 控制采样针 (11) 移动到反应杯位并停止在反应杯上方; 从检测模块 (12) 采集当前的电信号作为第一电信号;
控制采样针 (11) 向下移动到排样位, 执行排样; 排样完毕后停止预定吋间, 在此期间从检测模块 (12) 采集当前的电 信号作为第二电信号。
[权利要求 12] —种样本分析仪, 其特征在于, 包括如权利要求 1至 7中任一项所述 的采样机构。
PCT/CN2015/083976 2015-07-14 2015-07-14 采样机构及其空吸检测方法、样本分析仪 Ceased WO2017008249A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2015/083976 WO2017008249A1 (zh) 2015-07-14 2015-07-14 采样机构及其空吸检测方法、样本分析仪
CN201580081158.9A CN107709958B (zh) 2015-07-14 2015-07-14 采样机构及其空吸检测方法、样本分析仪

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/083976 WO2017008249A1 (zh) 2015-07-14 2015-07-14 采样机构及其空吸检测方法、样本分析仪

Publications (1)

Publication Number Publication Date
WO2017008249A1 true WO2017008249A1 (zh) 2017-01-19

Family

ID=57756727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/083976 Ceased WO2017008249A1 (zh) 2015-07-14 2015-07-14 采样机构及其空吸检测方法、样本分析仪

Country Status (2)

Country Link
CN (1) CN107709958B (zh)
WO (1) WO2017008249A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030096A (zh) * 2018-06-06 2018-12-18 迈克医疗电子有限公司 取液测试方法及装置
CN109030098A (zh) * 2018-06-06 2018-12-18 迈克医疗电子有限公司 取液测试方法及装置
CN109030097A (zh) * 2018-06-06 2018-12-18 迈克医疗电子有限公司 取液测试方法及装置
WO2021223168A1 (zh) * 2020-05-07 2021-11-11 深圳迈瑞生物医疗电子股份有限公司 样本分析仪、样本分析方法及计算机可读存储介质

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110221090B (zh) * 2019-06-21 2021-03-23 苏州长光华医生物医学工程有限公司 一种应用化学发光分析仪防空吸、空排系统及方法
CN111812343B (zh) * 2020-07-02 2023-03-03 桂林优利特医疗电子有限公司 一种基于免疫比浊法测量的液路系统及其控制方法
CN114441279B (zh) * 2020-10-30 2024-07-05 深圳市瑞图生物技术有限公司 样本的采样混匀装置、混匀控制方法及精子质量分析仪
CN114166830B (zh) * 2021-12-08 2023-07-14 苏州长光华医生物医学工程有限公司 一种采样针管路及采样判断方法
CN117664646B (zh) * 2022-08-22 2025-09-09 深圳市帝迈生物技术有限公司 采样控制方法、装置、设备和样本分析仪、介质
CN120085023B (zh) * 2025-05-07 2025-07-29 嘉兴凯实生物科技股份有限公司 一种吸样质量检测的液路系统及异常检测流程

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2588334Y (zh) * 2002-12-27 2003-11-26 深圳迈瑞生物医疗电子股份有限公司 用于生化分析的液面检测装置
US20070137315A1 (en) * 2003-10-30 2007-06-21 Harazin Richard R Method and apparatus to reject electrical interference in a capacitive liquid level sensor system
CN101881706A (zh) * 2010-07-05 2010-11-10 深圳迈瑞生物医疗电子股份有限公司 一种采样设备及方法
JP2011128163A (ja) * 2011-02-02 2011-06-30 Beckman Coulter Inc 液面接触検知方法および装置
CN103900997A (zh) * 2012-12-28 2014-07-02 深圳迈瑞生物医疗电子股份有限公司 样本分析仪及检测采样针排液的方法及装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005249521A (ja) * 2004-03-03 2005-09-15 Yaskawa Electric Corp 分注装置および分注方法
CN100547362C (zh) * 2006-08-31 2009-10-07 深圳迈瑞生物医疗电子股份有限公司 探针液面检测装置及方法
CN101858770B (zh) * 2009-04-09 2013-04-24 深圳迈瑞生物医疗电子股份有限公司 液面检测装置及加样系统
CN101865718B (zh) * 2009-04-17 2013-09-11 深圳迈瑞生物医疗电子股份有限公司 液面检测电路、装置及其校准方法
CN104111102B (zh) * 2013-04-16 2018-10-26 深圳迈瑞生物医疗电子股份有限公司 液面检测方法、装置和免疫分析仪

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2588334Y (zh) * 2002-12-27 2003-11-26 深圳迈瑞生物医疗电子股份有限公司 用于生化分析的液面检测装置
US20070137315A1 (en) * 2003-10-30 2007-06-21 Harazin Richard R Method and apparatus to reject electrical interference in a capacitive liquid level sensor system
CN101881706A (zh) * 2010-07-05 2010-11-10 深圳迈瑞生物医疗电子股份有限公司 一种采样设备及方法
JP2011128163A (ja) * 2011-02-02 2011-06-30 Beckman Coulter Inc 液面接触検知方法および装置
CN103900997A (zh) * 2012-12-28 2014-07-02 深圳迈瑞生物医疗电子股份有限公司 样本分析仪及检测采样针排液的方法及装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030096A (zh) * 2018-06-06 2018-12-18 迈克医疗电子有限公司 取液测试方法及装置
CN109030098A (zh) * 2018-06-06 2018-12-18 迈克医疗电子有限公司 取液测试方法及装置
CN109030097A (zh) * 2018-06-06 2018-12-18 迈克医疗电子有限公司 取液测试方法及装置
CN109030097B (zh) * 2018-06-06 2023-04-18 迈克医疗电子有限公司 取液测试方法及装置
WO2021223168A1 (zh) * 2020-05-07 2021-11-11 深圳迈瑞生物医疗电子股份有限公司 样本分析仪、样本分析方法及计算机可读存储介质

Also Published As

Publication number Publication date
CN107709958B (zh) 2020-04-14
CN107709958A (zh) 2018-02-16

Similar Documents

Publication Publication Date Title
WO2017008249A1 (zh) 采样机构及其空吸检测方法、样本分析仪
CN100547362C (zh) 探针液面检测装置及方法
CN101881706B (zh) 一种采样设备及方法
CN105675082B (zh) 液面感应装置、生化分析仪和液面感应方法
CN204832222U (zh) 自动识别液面的进样系统
CN103185622B (zh) 一种液体加样装置及其控制方法
CN1213283C (zh) 液位检测装置
JP3907819B2 (ja) 液面検知装置
CN103900997A (zh) 样本分析仪及检测采样针排液的方法及装置
CN112557685A (zh) 一种检测样本分析仪吸样的方法及装置
CN102890159B (zh) 一种自动样品识别的采样系统及其方法
CN217084982U (zh) 一种双流路液体检测系统及血气电解质分析仪
CN111961583B (zh) 一种防堵塞吸液装置及吸液装置堵塞的解除方法
CN214183163U (zh) 一种吸吐液装置
CN202661472U (zh) 一种自动样品识别的采样系统
JPH1048220A (ja) 分注装置
CN107152953A (zh) 一种适用于糖化血红蛋白加样的液面探测方法及装置
JPH05232125A (ja) サンプル吸引検出方法
CN2927005Y (zh) 液面探测电路装置
CN115902181A (zh) 样本分析仪及其吸样控制方法
CN219434858U (zh) 多功能加样机构及医疗设备
CN220460720U (zh) 一种移液枪探液装置
CN115902279A (zh) 样本分析仪
US20230100040A1 (en) Sample analyzer and liquid aspiration control method thereof
CN110672869A (zh) 样本针的堵针检测装置及堵针检测方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15897977

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC - FORM 1205A (30.07.2018)

122 Ep: pct application non-entry in european phase

Ref document number: 15897977

Country of ref document: EP

Kind code of ref document: A1