WO2015051654A1 - 一种移液装置及移液方法 - Google Patents

一种移液装置及移液方法 Download PDF

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Publication number
WO2015051654A1
WO2015051654A1 PCT/CN2014/081309 CN2014081309W WO2015051654A1 WO 2015051654 A1 WO2015051654 A1 WO 2015051654A1 CN 2014081309 W CN2014081309 W CN 2014081309W WO 2015051654 A1 WO2015051654 A1 WO 2015051654A1
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Prior art keywords
pipetting
liquid
controller
nozzle
pipette
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PCT/CN2014/081309
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English (en)
French (fr)
Inventor
韦亨勇
陈吾科
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广州安必平自动化检测设备有限公司
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Publication of WO2015051654A1 publication Critical patent/WO2015051654A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02Burettes; Pipettes
    • B01L3/021Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06Fluid handling related problems
    • B01L2200/0647Handling flowable solids, e.g. microscopic beads, cells, particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/14Process control and prevention of errors
    • B01L2200/143Quality control, feedback systems
    • B01L2200/146Employing pressure sensors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00Moving or stopping fluids
    • B01L2400/04Moving fluids with specific forces or mechanical means
    • B01L2400/0475Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0487Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00Moving or stopping fluids
    • B01L2400/04Moving fluids with specific forces or mechanical means
    • B01L2400/0475Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0487Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
    • B01L2400/049Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics vacuum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1009Characterised by arrangements for controlling the aspiration or dispense of liquids
    • G01N35/1016Control of the volume dispensed or introduced

Definitions

  • the invention relates to the technical field of biomedical devices, and in particular to a pipetting device and a pipetting method. Background technique
  • the cell is the basic unit of the human body's morphological structure, and is the morphological basis of all biological metabolism, growth and development, and reproductive differentiation. By observing the cell differentiation and abnormalities of various tissues of the human body, it is possible to know whether or not there is a lesion.
  • Cell staining techniques are used to display intracellular morphological structures that help to observe cell differentiation and abnormalities.
  • cell staining is performed using a staining instrument.
  • a pipetting device is generally used for the convenience of dyeing.
  • the pipetting device is installed on the staining instrument, and includes a pipette and a nozzle, which are driven by the motor to take liquid and pipette.
  • a sample transfer needle (equivalent to a pipetting gun), which comprises a suction pipe, a suction pipe sleeve, an air guiding hose, a gas guiding hose sleeve and a connecting piece to solve the repeated sealing.
  • the problem is to reduce the cost of use and avoid the poor circulation, blockage and damage of the air guiding hose due to the twisting.
  • the sample transfer needle of this structure is used to take the liquid, pipette, take off the nozzle and replace the nozzle, it is impossible to confirm whether the transfer needle is connected to the nozzle and whether the nozzle is removed or not. It is determined whether the amount of the reagent sucked into the nozzle reaches the required amount of addition; thereby not only increasing the difficulty of the operation but also affecting the accuracy of the experiment. Summary of the invention
  • the object of the present invention is to provide a pipetting gun which can not only perform the action of pipetting and liquid taking, but also the amount of liquid or dyeing liquid extracted from the pipetting gun.
  • the liquid level of the stained color liquid in the dyed bottle is high, and the staff of the operator is added to add the staining solution. .
  • Another object of the present invention is to provide a liquid transporting device for one type of liquid transfer, and to complete the same simultaneous inspection of the liquid liquid and the liquid liquid. Detecting the amount of liquid liquid or dyed color liquid liquid extracted from the liquid pipette and the liquid level of the dyed color liquid in the dyed bottle The height of the surface is high, and the reminder of the operator is added to add the dyed dye liquid. .
  • Still another object of the present invention is to provide a method for the liquid transfer of a kind of liquid, which is used in the dyeing process by using the above-mentioned liquid transfer device.
  • the method of moving liquid liquid is carried out. .
  • a liquid transfer liquid gun comprising a liquid pipette sleeve and a liquid pipette to at least two or two roots and a root monitoring pipe,
  • the pipetting liquid pipe and the monitoring pipe are inserted and fixed in the inner part of the liquid liquid jacket; and the two roots are moved into the liquid pipe.
  • the end of the liquid liquid protrudes from the upper end end of the liquid liquid jacket and is connected to the test agent bottle bottle, and the liquid liquid end end protrudes and moves out.
  • the lower end of the liquid-liquid jacket; the built-in monitoring and measuring tube has a pressure-pressure sensor. .
  • the present invention may also be implemented by the following schemes;
  • the outer and outer wall of the upper end of the liquid transfer liquid sleeve is provided with a fixed fixed shift
  • the screw screw position of the liquid liquid gun is fixed, and the liquid liquid gun gun is fixed by the screw screw fixed under the electric motor machine. .
  • the lower end of the transfer liquid liquid jacket is a connecting portion for connecting the suction nozzle.
  • the straight diameter diameter of the connecting portion is gradually reduced from the top to the bottom. .
  • the transfer liquid liquid jacket is a gold metal sleeve tube.
  • a kind of liquid transfer liquid loading device which is coated with the above-mentioned liquid transfer liquid gun, and further includes a transmission with a moving liquid liquid gun on the upper and lower movements
  • the transmission motive mechanism is located under the liquid liquid gun, and is used for the suction nozzle holder for placing the suction nozzle and the air pump; and monitoring the tube inside the tube
  • the pressure signal of the internal pressure sensor transmits the signal signal number of the sensor, and the output terminal is connected with the one-to-one control controller.
  • the control controller is used for receiving and receiving the pressure force transmission.
  • the sensor sends the sent signal signal and according to the signal control, according to the signal control, the upper end of the monitoring tube extends out of the liquid liquid jacket and And connected with the gas pump, the lower end of which is located in the liquid liquid jacket.
  • the transmission mechanism includes a bracket, a motor partially mounted on the upper portion of the bracket, a driving pulley pivotally connected to the upper portion of the bracket and synchronously connected to the rotating shaft of the motor, and a slave pivotally connected to the lower portion of the bracket.
  • the movable pulley is synchronously arranged on the timing belt outside the driving pulley and the driven pulley.
  • the upper end of the pipetting gun is fixedly connected to the timing belt through a fixing block, and the control end of the motor is electrically connected to the controller. .
  • a pipetting method, using the above pipetting device, the pipetting step is as follows:
  • the transmission mechanism drives the pipette to connect the nozzle, and opens the pump to pump the suction reagent; the pressure sensor senses the internal pressure of the nozzle and transmits the sensed pressure signal to the controller, and the controller will receive the pressure. The value signal is compared with the set value of B.
  • the controller controls the transmission mechanism to complete the next action;
  • the controller reads When the pressure value is greater than the B value, the liquid level is not reached or the reagent is not taken up, the controller sends an alarm signal and controls the movement of the transmission mechanism to repeatedly take the liquid;
  • the pressure value is equal to the A value, there is no reagent in the nozzle, the operator Need to add reagents to the reagent bottle;
  • the pipetting device of the present invention transmits a pressure signal in the pipetting gun to the controller through a pressure sensor by setting a monitoring tube and a pressure sensor in the pipette, and determining the liquid pressure by reading the pressure displayed by the controller. Liquid level; not only can accurately control the amount of liquid taken, but also further facilitate operation;
  • the pipetting device of the present invention can remove different reagents through two pipettes. Since the pipette protrudes from the pipetting sleeve, the reagents coming out of the pipetting pipe directly enter the nozzle, thereby avoiding cross infection;
  • the pipetting method of the present invention is carried out by using the pipetting device of the present invention, which is precise and fast, can accurately control the amount of liquid taken, and can also remind the operator to add reagents.
  • Figure 1 is a schematic view showing the structure of a pipetting gun according to the present invention.
  • Figure 2 is an axial cross-sectional view of the pipetting gun of the present invention
  • FIG. 3 is a schematic structural view of a pipetting device according to the present invention.
  • the pipetting gun 10 of the present invention comprises a pipetting sleeve 1 and at least two pipettes 2 and a monitoring tube 3, and the pipette 2 and the monitoring tube 3 are inserted.
  • the liquid inlet end of the two pipettes 2 protrudes from the upper end of the pipetting sleeve 1 and is respectively connected to a reagent bottle, and the liquid discharging end protrudes from the lower end of the pipetting sleeve;
  • the tube 3 has a built-in pressure sensor (not shown).
  • the outer wall of the upper end of the pipetting sleeve 1 is provided with a fixed shift Description
  • the screw position of the liquid gun 4 , the pipette 10 is fixed under the motor by screws.
  • the lower end of the pipetting sleeve 1 is a connecting portion for connecting the suction nozzle 40, and the diameter of the connecting portion gradually decreases from top to bottom.
  • the pipetting sleeve 1 is a metal sleeve.
  • the pipetting device of the present invention comprises the above-mentioned pipetting gun 10, and further comprises a transmission mechanism 20 for driving the pipette 10 to move up and down, and a nozzle 20 located below the pipetting gun for placing the nozzle 40.
  • the transmission mechanism 20 includes a bracket 22, a motor 21 partially mounted on the upper portion of the bracket 22, pivotally connected to the upper portion of the bracket 22, and synchronously connected to the shaft of the motor 21
  • the fixing block 26 is fixedly connected to the timing belt 25, and the control end of the motor 21 is electrically connected to the controller.
  • the bracket 22 is mounted with a linear guide 27 extending in the height direction, and the fixed block slide 26 is mounted on the linear guide 27.
  • the pipetting method of the present invention uses the above pipetting device, and the pipetting step is as follows:
  • the pressure sensor transmits the detected pressure signal to the controller, reads the pressure value B, and sets the pressure value corresponding to the amount of suction in the nozzle of the controller B;
  • the transmission mechanism drives the pipette to connect the nozzle, and opens the pump to pump the suction reagent; the pressure sensor senses the internal pressure of the nozzle and transmits the sensed pressure signal to the controller, and the controller will receive the pressure. The value signal is compared with the set value of B.
  • the controller controls the transmission mechanism to complete the next action;
  • the controller reads When the pressure value is greater than the B value, the liquid level is not reached or the reagent is not taken up, the controller sends an alarm signal and controls the movement of the transmission mechanism to repeatedly take the liquid;
  • the pressure value is equal to the A value, there is no reagent in the nozzle, the operator Need to add reagents to the reagent bottle;

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  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

提供了一种移液枪(10)及移液装置和移液方法。移液枪(10)包括移液套(1)和至少两根移液管(2)和一根监测管(3),移液管(2)和监测管(3)插装并固定在移液套(1)内部;两根移液管(2)的进液端从移液套(1)上端伸出并分别连接一试剂瓶,其出液端伸出移液套(1)的下端;监测管(3)内置有一压力传感器。移液装置包括移液枪(10)和带动移液枪(10)上下运动的传动机构(20)、位于移液枪(10)下方用于放置吸嘴(40)的吸嘴架(30)以及气泵。该移液装置能准确完成移液、取液的动作,还能检测移液枪(10)中提取到液体或染色液的量及染色瓶中的染色液的液面高度,并提醒操作人员添加染色液。

Description

说 明 书
一种移液装置及移液方法 技术领域
本发明涉及生物医疗器械技术领域, 具体涉及一种移液装置及移液方法。 背景技术
细胞是人体形态结构的基本单元, 是一切生物新陈代谢、 生长发育、 繁殖 分化的形态基础。 通过观察人体各个组织的细胞分化和异常现象就可以知道是 否有病变。 用细胞染色技术来显示细胞内形态结构, 有助于观察细胞分化和异 常现象。 目前, 细胞染色采用染色仪器操作。 在染色过程中, 为了方便染色一 般要用到移液装置, 移液装置安装在染色仪上, 包括了移液枪和吸嘴, 由电机 带动其取液、 移液。
中国专利 CN202054825U中公开了一种样本转移针(相当于移液枪), 包括 了抽吸管、 抽吸管管套、 导气软管、 导气软管管套以及连接件解决了重复密封 的问题, 降低使用成本, 避免了导气软管因绞合而造成的流通不畅、 堵塞和损 坏现象。 但是这种结构的样本转移针在电机的带动下完成取液、 移液、 脱吸嘴 以及更换吸嘴的工作时, 无法确认在转移针是否连接上吸嘴和是否脱去吸嘴, 也不能确定吸入到吸嘴中的试剂的量是否达到需要的添加量; 从而不仅增加了 操作的难度还会影响实验的精确度。 发明内容
为了克服现有技术的不足, 本发明的目的在于提供一种移液枪, 该移液枪 不仅能完成移液、 取液的动作, 还能检测移液枪中提取到液体或染色液的量及 说 明 书
染染色色瓶瓶中中的的染染色色液液的的液液面面高高度度,, 并并提提醒醒操操作作人人员员添添加加染染色色液液。。
本本发发明明的的另另一一目目的的在在于于提提供供一一种种移移液液装装置置,, 完完成成取取液液、、 移移液液的的同同时时检检测测移移 液液枪枪中中提提取取到到液液体体或或染染色色液液的的量量及及染染色色瓶瓶中中的的染染色色液液的的液液面面高高度度,, 并并提提醒醒操操作作 人人员员添添加加染染色色液液。。
本本发发明明的的又又一一目目的的在在于于提提供供一一种种移移液液方方法法,, 采采用用上上述述移移液液装装置置在在染染色色过过程程 中中进进行行移移液液的的方方法法。。
为为解解决决上上述述问问题题,, 本本发发明明所所采采用用的的技技术术方方案案如如下下::
一一种种移移液液枪枪,, 其其包包括括移移液液套套和和至至少少两两根根移移液液管管和和一一根根监监测测管管,, 所所述述移移液液管管 和和监监测测管管插插装装并并固固定定在在移移液液套套内内部部;; 两两根根移移液液管管的的进进液液端端从从移移液液套套上上端端伸伸出出并并 分分别别连连接接一一试试剂剂瓶瓶,, 其其出出液液端端伸伸出出移移液液套套的的下下端端;; 所所述述监监测测管管内内置置有有一一压压力力传传 感感器器。。
本本发发明明还还可可以以通通过过以以下下方方案案实实现现;;
作作为为本本发发明明的的一一种种优优选选的的方方案案,, 所所述述移移液液套套上上端端的的外外壁壁上上设设置置有有固固定定移移液液 枪枪的的螺螺丝丝位位,, 移移液液枪枪通通过过螺螺丝丝固固定定在在电电机机下下方方。。
作作为为本本发发明明的的一一种种优优选选的的方方案案,, 所所述述移移液液套套下下端端为为连连接接吸吸嘴嘴的的连连接接部部,, 连连 接接部部的的直直径径由由上上至至下下逐逐渐渐减减小小。。
作作为为本本发发明明的的一一种种优优选选的的方方案案,, 所所述述移移液液套套为为金金属属套套管管。。
为为了了实实现现本本发发明明的的另另一一个个目目的的,, 所所采采取取的的方方案案如如下下::
一一种种移移液液装装置置,, 其其包包上上述述移移液液枪枪,, 还还包包括括带带动动移移液液枪枪上上下下运运动动的的传传动动机机构构、、 位位于于移移液液枪枪下下方方用用于于放放置置吸吸嘴嘴的的吸吸嘴嘴架架以以及及气气泵泵;; 监监测测管管内内的的压压力力传传感感器器的的信信 号号输输出出端端连连接接一一控控制制器器,, 控控制制器器用用于于接接收收压压力力传传感感器器发发送送的的信信号号并并依依据据该该信信号号 控控制制传传动动机机构构,, 监监测测管管上上端端伸伸出出移移液液套套并并与与气气泵泵连连接接,, 其其下下端端位位于于移移液液套套内内。。
Figure imgf000004_0001
说 明 书
作为本发明的一种优选的方案, 所述传动机构包括支架、 机体部分安装在 支架上部的电机、 枢接在支架上部并同步连接在电机转轴上的主动带轮、 枢接 在支架下部的从动带轮、 同步的绕设在主动带轮和从动带轮外部的同步皮带, 移液枪的上端部通过一固定块固定连接在同步皮带上, 电机的控制端电性连接 在控制器上。
为了实现本发明的又一个目的, 所采用的技术方案如下:
一种移液方法, 釆用上述的移液装置, 其移液步骤如下:
1 )设定压力值: 操作控制器, 开启气泵抽气, 启动传动机构带动移液枪接 装吸嘴, 压力传感器将检测到的压力信号传至控制器, 待控制器显示的压力值 不再变化, 确定接上吸嘴并从控制器上读取对应的压力值 A; 气泵归零后, 再 次启动气泵, 传动机构带动移液枪及吸嘴开始取液, 至吸嘴中的试剂达到设定 的体积, 压力传感器将检测到的压力信号传至控制器, 读取压力值 B, 并将在控 制器设定吸嘴吸液的量对应的压力值为 B;
2 )取液: 传动机构带动移液枪接上吸嘴, 开启气泵抽气吸取试剂; 压力传 感器感应吸嘴的内部压力并将感应到的压力信号传给控制器, 控制器将接收到 的压力值信号与设定的为 B值进行比较, 当控制器读取的压力值与设定的 B值 相等时, 达到取液量, 控制器控制传动机构完成下一个动作; 当控制器读取的 压力值大于 B值时, 没有达到取液量或没有吸取到试剂, 控制器发出报警信号 并控制传动机构重复取液的动作; 当压力值等于 A值时, 则吸嘴中没有试剂, 操作人员需要在试剂瓶中添加试剂;
3 )移液: 确定达到去液量后的移液枪及吸嘴在电机带动下移至样品管中; 启动气泵放气将吸嘴中的试剂放出。
相比现有技术, 本发明的有益效果在于: 说 明 书
1. 本发明所述的移液装置通过在移液管中设置监测管和压力传感器, 通过 压力传感器将移液枪内的压力信号传输给控制器, 通过读取控制器显示的压力 确定取液液面; 不仅能精确控制取液量, 还进一步方便操作;
2. 本发明的移液装置能通过两根移液管移取不同的试剂, 由于移液管伸出 移液套, 从移液管出来的试剂直接进入到吸嘴中, 避免了交叉感染;
3. 本发明所述的移液方法是采用本发明所述的移液装置完成的, 该方法操 作精确、 快捷, 能精确控制取液量, 还可以提醒操作人员添加试剂。
下面结合附图和具体实施方式对本发明作进一步详细说明。
附图说明
图 1为本发明所述的移液枪的结构示意图;
图 2为本发明所述的移液枪的轴向剖视图;
图 3为本发明所述的移液装置结构示意图;
其中: 1、 移液套; 2、 移液管; 3、 监测管; 4、 螺丝位; 10、 移液枪; 20、 传动机构; 21、 电机; 22、 支架; 23、 主动带轮; 24、 从动带轮; 25、 同步皮 带; 26、 固定块; 27、 直线导轨; 30、 吸嘴架; 40、 吸嘴。 具体实施方式
实施例 1
如图 1、 图 2所示, 本发明所述的移液枪 10, 包括移液套 1和至少两根移 液管 2和一根监测管 3 , 所述移液管 2和监测管 3插装并固定在移液套 1 内部; 两根移液管 2的进液端从移液套 1 上端伸出并分别连接一试剂瓶, 其出液端伸 出移液套的下端; 所述监测管 3内置有一压力传感器 (图未示)。
在实施例 1 的基础上, 优选的, 所述移液套 1上端的外壁上设置有固定移 说 明 书
液枪的螺丝位 4 , 移液枪 10通过螺丝固定在电机下方。
在实施例 1的基础上,优选的,所述移液套 1下端为连接吸嘴 40的连接部, 连接部的直径由上至下逐渐减小。
在实施例 1的基础上, 优选的, 所述移液套 1为金属套管。
实施例 2
如图 3所示, 本发明所述的移液装置, 其包上述移液枪 10, 还包括带动移 液枪 10上下运动的传动机构 20、位于移液枪 10下方用于放置吸嘴 40的吸嘴架 30以及气泵; 监测管 3 内的压力传感器的信号输出端连接一控制器, 控制器用 于接收压力传感器发送的信号并依据该信号控制传动机构 20 , 监测管 3上端伸 出移液套 1并与气泵连接, 其下端位于移液套内。
如图 3所示,在实施例 1的基础上,优选的,所述传动机构 20包括支架 22、 机体部分安装在支架 22上部的电机 21、 枢接在支架 22上部并同步连接在电机 21转轴上的主动带轮 23、 枢接在支架 22下部的从动带轮 24、 同步的绕设在主 动带轮 23和从动带轮 24外部的同步皮带 25 ,移液枪 10的上端部通过一固定块 26固定连接在同步皮带 25上, 电机 21的控制端电性连接在控制器上。优选的, 所述支架 22上安装有一沿高度方向延伸的直线导轨 27 , 固定块滑动 26的安装 在该直线导轨 27上。
实施例 3
本发明所述的移液方法, 釆用上述的移液装置, 其移液步骤如下:
1 )设定压力值: 操作控制器, 开启气泵抽气, 启动传动机构带动移液枪接 装吸嘴, 压力传感器将检测到的压力信号传至控制器, 待控制器显示的压力值 不再变化, 确定接上吸嘴并从控制器上读取对应的压力值 A; 气泵归零后, 再 次启动气泵, 传动机构带动移液枪及吸嘴开始取液, 至吸嘴中的试剂达到设定 说 明 书
的体积, 压力传感器将检测到的压力信号传至控制器, 读取压力值 B, 并将在控 制器设定吸嘴吸液的量对应的压力值为 B;
2 )取液: 传动机构带动移液枪接上吸嘴, 开启气泵抽气吸取试剂; 压力传 感器感应吸嘴的内部压力并将感应到的压力信号传给控制器, 控制器将接收到 的压力值信号与设定的为 B值进行比较, 当控制器读取的压力值与设定的 B值 相等时, 达到取液量, 控制器控制传动机构完成下一个动作; 当控制器读取的 压力值大于 B值时, 没有达到取液量或没有吸取到试剂, 控制器发出报警信号 并控制传动机构重复取液的动作; 当压力值等于 A值时, 则吸嘴中没有试剂, 操作人员需要在试剂瓶中添加试剂;
3 )移液: 确定达到去液量后的移液枪及吸嘴在电机带动下移至样品管中; 启动气泵放气将吸嘴中的试剂放出。
上述实施方式仅为本发明的优选实施方式, 不能以此来限定本发明保护的 范围, 本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换 均属于本发明所要求保护的范围。

Claims

权 利 要 求 书
1. 一种移液枪, 其特征在于: 其包括移液套和至少两根移液管和一根监测 管, 所述移液管和监测管插装并固定在移液套内部; 两根移液管的进液端从移 液套上端伸出并分别连接一试剂瓶, 其出液端伸出移液套的下端; 所述监测管 内置有一压力传感器。
2. 根据权利要求 1所述的移液枪, 其特征在于: 所述移液套上端的外壁上 设置有固定移液枪的螺丝位 , 移液枪通过螺丝固定在电机下方。
3. 根据权利要求 2所述的移液枪, 其特征在于: 所述移液套下端为连接吸 嘴的连接部, 连接部的直径由上至下逐渐减小。
4. 根据权利要求 1所述的移液枪, 其特征在于: 所述移液套为金属套管。
5. 一种移液装置, 其特征在于: 包括如权利要求 1所述的移液枪, 其还包 括带动移液枪上下运动的传动机构、 位于移液枪下方用于放置吸嘴的吸嘴架以 及气泵; 监测管内的压力传感器的信号输出端连接一控制器, 控制器用于接收 压力传感器发送的信号并依据该信号控制传动机构, 监测管上端伸出移液套并 与气泵连接, 其下端位于移液套内。
6. 根据权利要求 5所述的移液装置, 其特征在于: 所述传动机构包括支架、 机体部分安装在支架上部的电机、 枢接在支架上部并同步连接在电机转轴上的 主动带轮、 枢接在支架下部的从动带轮、 同步的绕设在主动带轮和从动带轮外 部的同步皮带, 移液枪的上端部通过一固定块固定连接在同步皮带上, 电机的 控制端电性连接在控制器上。
7. 一种移液方法, 其特征在于采用权利要求 5所述的移液装置, 其移液步 骤如下:
1 )设定压力值: 操作控制器, 开启气泵抽气, 启动传动机构带动移液枪接 装吸嘴, 压力传感器将检测到的压力信号传至控制器, 待控制器显示的压力值 权 利 要 求 书
不再变化, 确定接上吸嘴并从控制器上读取对应的压力值 A; 气泵归零后, 再 次启动气泵, 传动机构带动移液枪及吸嘴开始取液, 至吸嘴中的试剂达到设定 的体积, 压力传感器将检测到的压力信号传至控制器, 读取压力值 B, 并将在控 制器设定吸嘴吸液的量对应的压力值为 B;
2 )取液: 传动机构带动移液枪接上吸嘴, 开启气泵抽气吸取试剂; 压力传 感器感应吸嘴的内部压力并将感应到的压力信号传给控制器, 控制器将接收到 的压力值信号与设定的为 B值进行比较, 当控制器读取的压力值与设定的 B值 相等时, 达到取液量, 控制器控制传动机构完成下一个动作; 当控制器读取的 压力值大于 B值时, 没有达到取液量或没有吸取到试剂, 控制器发出报警信号 并控制传动机构重复取液的动作; 当压力值等于 A值时, 则吸嘴中没有试剂, 操作人员需要在试剂瓶中添加试剂;
3 )移液: 确定达到去液量后的移液枪及吸嘴在电机带动下移至样品管中; 启动气泵放气将吸嘴中的试剂放出。
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