CN103861850A - Washing and method device for sample needle - Google Patents
Washing and method device for sample needle Download PDFInfo
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- CN103861850A CN103861850A CN201410080154.6A CN201410080154A CN103861850A CN 103861850 A CN103861850 A CN 103861850A CN 201410080154 A CN201410080154 A CN 201410080154A CN 103861850 A CN103861850 A CN 103861850A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
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Abstract
The invention relates to the field of medical treatment, in particular to a washing device and method for a sample needle. Two liquid driving devices are used for feeding liquid to the sample needle by the washing device for the sample needle, so that the forward washing and the backward washing for the sample needle are realized, and the washing efficiency and the washing effect are further increased. Under the condition of ensuring the washing effect, the washing mode, compared with a single washing mode, has the advantages that the consumed time is shorter, and the sample needle and a sample preparing pipeline can be simultaneously washed and also can be independently washed. According to the washing method for the sample needle, the sample needle is backward washed while the sample preparing pipeline is washed, the washing time is set as a preset time value T1, the washing time is set as a preset time value T2 when the sample needle is forward washed, and the washing is performed on the basis of alternate T1/T2 or T2/T1, so that the washing efficiency and the washing effect for the sample needle and the sample preparing pipeline are further increased.
Description
Technical field
the present invention relates to medical field, be specifically related to a kind of cleaning device and method of specimen needle.
Background technology
in flow cytometer, specimen needle is the flow channel of sample flow, and sample to be tested penetrates and form narrow and stable sample areas under the parcel of sheath stream from specimen needle and enters flow chamber under the promotion of liquid malleation.Sample to be tested particle flows through flow chamber with arrangement mode, the various types of scattered light signals that produce in irradiating by the particle in Ear Mucosa Treated by He Ne Laser Irradiation sample flow and collection, in conjunction with biological property, signal is carried out to statistic of classification, obtain having the parameter information of clinical meaning.
the latus rectum of specimen needle is very little, be generally 0.1-0.4mm, and the liquid flowing through in specimen needle is generally the mixed reactant of blood and reagent, owing to containing protein and various clotting factor in blood, the inwall that is easily attached to specimen needle forms the accumulations such as blood dirt, stops up specimen needle.In measuring process, also likely can bring other various impurity simultaneously, the skin histology that for example puncture in blood collection procedure brings, all kinds of impurity that contain in the chip that puncture test tube brings and reagent, these impurity also may form obstruction along with sample flow enters specimen needle.Once it is abnormal that specimen needle generation stopping state can cause sample flow to occur, measuring-signal distortion, produces wrong clinical diagnosis information, more seriously the excessive pipe that collapses of influidic pipe road pressurized.
at present, for the cleaning of specimen needle, major way is to rinse sample by single syringe to prepare pipeline and the realization of recoil specimen needle simultaneously, the cleaning way of this routine has several restrictions: in the situation that syringe rinses sample preparation pipeline and specimen needle simultaneously, because the latus rectum of specimen needle is little, liquid resistance is prepared pipeline much larger than sample, and the fluid flow of the specimen needle of therefore flowing through is little; In the situation that syringe rinses sample preparation pipeline and specimen needle simultaneously, the liquid velocity of the specimen needle of flowing through is low.
Summary of the invention
for overcoming above-mentioned defect, object of the present invention is to provide a kind of cleaning device of specimen needle, this device can rinse specimen needle simultaneously and sample is prepared pipeline, also can rinse respectively specimen needle and sample and prepare pipeline, and further improve flush efficiency and developing result.
the present invention also aims to provide a kind of cleaning method of specimen needle, the method can be rinsed specimen needle and sample preparation pipeline simultaneously, and can obtain higher flush efficiency and good developing result.
the object of the invention is to be achieved through the following technical solutions:
the cleaning device of a kind of specimen needle of the present invention, comprising: specimen needle, and the specimen needle fixed chamber that specimen needle is fixed, is inside equipped with the liquid storage tank of cleaning fluid, first liquid drive unit, second liquid drive unit;
the outlet docking specimen needle fixed chamber entrance of described specimen needle, the entrance of described specimen needle is connected with the first sample and prepares pipeline and the second sample preparation pipeline; Described first liquid drive unit is connected with first passage conversion and on-off controller, and described first passage conversion is connected liquid storage tank with one end of on-off controller, and the other end connects the outlet of specimen needle fixed chamber; Described second liquid drive unit is connected with second channel conversion and on-off controller, and described second channel conversion is connected liquid storage tank with one end of on-off controller, and the other end connects the first sample and prepares pipeline;
described cleaning device also comprises liquid container group, described liquid container group prepares pipeline with described the second sample and specimen needle fixed chamber entrance is connected, prepare the break-make of pipeline and specimen needle fixed chamber entrance for controlling described the second sample, the cleaning fluid of the second sample being prepared to pipeline and the conveying of specimen needle fixed chamber entrance stores, and prepares pipeline and specimen needle fixed chamber entrance to the second sample the cleaning fluid loopback storing.
further, described liquid container group comprises first liquid container, second liquid container, first passage on-off controller, second channel on-off controller; Described first liquid container connects first passage on-off controller, specimen needle fixed chamber entrance successively, and described second liquid container connects second channel on-off controller successively, the second sample is prepared pipeline.
further, described liquid container group comprises liquid container, the third channel conversion and the on-off controller that are connected with this liquid container; Described third channel conversion is connected respectively specimen needle fixed chamber entrance with the two ends of on-off controller, the second sample is prepared pipeline.
further, described specimen needle fixed chamber is flow chamber.
further, the other end of described first passage conversion and on-off controller is connected with the outlet of specimen needle fixed chamber by third channel on-off controller, and is connected with the other end of second channel conversion and on-off controller by four-way on-off controller.
a method of applying the cleaning device of above-mentioned a kind of specimen needle, comprises the following steps:
first liquid drive unit is drawn after cleaning fluid from liquid storage tank, first passage conversion and on-off controller carry out passage switching, cleaning fluid enters specimen needle by the outlet of specimen needle fixed chamber under the driving of first liquid drive unit, prepare pipeline from specimen needle inlet streams through the second sample subsequently and enter liquid container group, specimen needle is carried out to back flush; When specimen needle is carried out to back flush, second liquid drive unit is drawn cleaning fluid from liquid storage tank, second channel conversion and on-off controller carry out passage switching, cleaning fluid is flowed through under the driving of second liquid drive unit, and the first sample is prepared pipeline, the second sample is prepared pipeline and entered liquid container group, and specimen needle and first and second sample preparation pipeline are rinsed;
second liquid drive unit is drawn after cleaning fluid from liquid storage tank, second channel conversion and on-off controller carry out passage switching, cleaning fluid is flowed through under the driving of second liquid drive unit, and the first sample is prepared pipeline, specimen needle entrance enters specimen needle, the specimen needle of flowing through subsequently outlet, specimen needle fixed chamber entrance enter liquid container group, and specimen needle is carried out to forward flushing;
the time of described specimen needle back flush is Preset Time value T1, and the time that described specimen needle forward rinses is Preset Time value T2; Described cleaning method hockets according to T1/T2 or T2/T1 hockets.
further, described cleaning fluid is diluent or cleaning agent.
the cleaning device of a kind of specimen needle provided by the invention and method, the cleaning device of this specimen needle uses two liquid driving devices to beat liquid to sample pin, realize forward and back flush to specimen needle, further improve flush efficiency and developing result, in the situation that ensureing developing result, which is shorter than the single flushing time used, not only can rinse specimen needle and sample simultaneously and prepare pipeline, also can rinse respectively specimen needle and sample and prepare pipeline.The cleaning method of this specimen needle rinses sample and prepares pipeline in backwash specimen needle, and this washing time is set to Preset Time value T1, when specimen needle is carried out to forward flushing, this washing time is set to Preset Time value T2, and hocket or T2/T1 hockets according to T1/T2, further improve specimen needle and sample and prepare flush efficiency and the developing result of pipeline.
Brief description of the drawings
for ease of explanation, the present invention is described in detail by following preferred embodiment and accompanying drawing.
fig. 1 is cleaning device and embodiment schematic diagram of method of a kind of specimen needle of the present invention;
fig. 2 is cleaning device and another embodiment schematic diagram of method of a kind of specimen needle of the present invention.
Detailed description of the invention
in order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
refer to Fig. 1, the cleaning device of a kind of specimen needle of the present invention, comprising: specimen needle 11, and the specimen needle fixed chamber that specimen needle 11 is fixed, is inside equipped with the liquid storage tank 1 of cleaning fluid, first liquid drive unit 2, second liquid drive unit 3; Wherein this specimen needle fixed chamber is preferably flow chamber 10.
these specimen needle outlet 108 docking flow chamber entrances, this specimen needle entrance 109 is connected with the first sample and prepares pipeline 104 and the second sample preparation pipeline 106; This first liquid drive unit 2 is connected with first passage conversion and on-off controller 4, and this first passage conversion is connected liquid storage tank 1 with one end of on-off controller 4, and the other end connects flow chamber outlet 107; This second liquid drive unit 3 is connected with second channel conversion and on-off controller 5, and this second channel conversion is connected liquid storage tank 1 with one end of on-off controller 5, and the other end connects the first sample and prepares pipeline 104.
this cleaning device also comprises liquid container group, this liquid container group prepares pipeline 106 with this second sample and flow chamber entrance is connected, prepare the break-make of pipeline 106 and flow chamber entrance for controlling this second sample, the cleaning fluid of the second sample being prepared to pipeline 106 and the conveying of flow chamber entrance stores, and prepares pipeline 106 and flow chamber entrance to the second sample the cleaning fluid loopback storing.
specifically, referring to Fig. 1, this liquid container group comprises first liquid container 7, second liquid container 8, first passage on-off controller 6, second channel on-off controller 9; This first liquid container 7 connects first passage on-off controller 6, path 10 5, flow chamber entrance successively, and this second liquid container 8 connects second channel on-off controller 9 successively, the second sample is prepared pipeline 106.
the cleaning method of the specimen needle of present embodiment and device can be applicable to blood cell, biochemistry, immunity at interior sample analyser.Carry out specimen needle 11 while cleaning, first liquid drive unit 2 is drawn cleaning fluid from liquid storage tank 1, and this cleaning fluid can be common measurement liquid, as dilution, can be also specific cleaning solution.After imbibition completes, first passage conversion and on-off controller 4 carry out passage switching, the outlet of first liquid drive unit 2 is transferred to path 10 2 from path 10 1, second channel on-off controller 9 is opened simultaneously, the second sample is prepared pipeline 106 and 8 conductings of second liquid container, under the driving of first liquid drive unit 2, its liquid of inhaling is by path 10 2, flow chamber outlet 107 and enter specimen needle 11 from specimen needle outlet 108, subsequently from specimen needle entrance 109 flow through second sample prepare pipeline 106 enter second liquid container 8, realize the back flush to specimen needle 11.
further, second liquid drive unit 3 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, second channel conversion and on-off controller 5 carry out passage switching, the outlet of second liquid drive unit 3 is transferred to the first sample from path 10 3 and prepares pipeline 104, first passage on-off controller 6 is opened simultaneously, path 10 5 and 7 conductings of first liquid container, under the driving of second liquid drive unit 3, its liquid of inhaling is prepared pipeline 104 by the first sample and is entered specimen needle 11 from specimen needle entrance 109, enter first liquid container 7 from specimen needle outlet 108 path 10 5 of flowing through subsequently, realize the forward of specimen needle 11 is rinsed.
further, in the time carrying out specimen needle 11 back flush, by regulating the fluid injection time of first liquid drive unit 2, second liquid drive unit 3, can clean fluid flow used to specimen needle 11 by control device.In the time carrying out specimen needle 11 back flush, by regulating the injection speed of first liquid drive unit 2, second liquid drive unit 3, the flowing velocity of control device to specimen needle 11 cleaning liquids, coordinate the roughness of length, internal diameter size and the inner surface of specimen needle 11, can control the flow pattern of liquid in specimen needle 11, as laminar flow, turbulent flow, realize different cleaning performances.Carrying out specimen needle 11 while rinsing, by regulating the pattern of first liquid drive unit 2, second liquid drive unit 3, as play liquid, imbibition, can control the flow direction to specimen needle 11 cleaning liquids, forward and the back flush of realization to specimen needle 11.
further, first liquid drive unit 2, second liquid drive unit 3 is drawn cleaning fluid simultaneously from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 and second channel conversion and on-off controller 5 carry out respectively passage switching, first liquid drive unit 2 exports from path 10 1 and is transferred to path 10 2, second liquid drive unit 3 exports from path 10 3 and is transferred to the first sample preparation pipeline 104, second channel on-off controller 9 is opened simultaneously, the second sample is prepared pipeline 106 and 8 conductings of second liquid container, under the driving of first liquid drive unit 2, its liquid of inhaling is by path 10 2, flow chamber outlet 107 and enter specimen needle 11 from specimen needle outlet 108, subsequently from specimen needle entrance 109 flow through second sample prepare pipeline 106 enter second liquid container 8.Under the driving of second liquid drive unit 3, its liquid of inhaling is prepared pipeline 106 and is entered second liquid container 8 by the first sample preparation pipeline 104, the second sample simultaneously.The flushing that realizes the back flush to specimen needle 11 simultaneously and the first sample is prepared to pipeline 104, the second sample preparation pipeline 106, can save scavenging period, improves cleaning efficiency.
further, first liquid drive unit 2 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 carry out passage switching, the outlet of first liquid drive unit 2 is transferred to path 10 2 from path 10 1, second channel on-off controller 9 is opened simultaneously, the second sample is prepared pipeline 106 and 8 conductings of second liquid container, under the driving of first liquid drive unit 2, its liquid of inhaling is by path 10 2, flow chamber outlet 107 and enter specimen needle 11 from specimen needle outlet 108, subsequently from specimen needle entrance 109 flow through second sample prepare pipeline 106 enter second liquid container 8, realize the back flush to specimen needle 11, the back flush duration is T1.Second channel on-off controller 9 is closed, first passage on-off controller 6 is opened simultaneously, path 10 5 and 7 conductings of first liquid container, under the driving of second liquid drive unit 3, its liquid of inhaling is prepared pipeline 104 by the first sample and is entered specimen needle 11 from specimen needle entrance 109, enter first liquid container 7 from specimen needle outlet 108 path 10 5 of flowing through subsequently, realize the forward of specimen needle 11 is rinsed, it is T2 that forward rinses the duration.Forward and back flush hocket, and can realize in the mode of frequency T1/T2 or T2/T1 specimen needle 11 is carried out to forward and reverse flushing, strengthen cleaning performance.
fig. 2 is the second specific embodiment of the present invention, and the main distinction of this embodiment and the first embodiment is: the second embodiment does not have second liquid container 8, second channel on-off controller 9, first liquid container 7, first passage on-off controller 6.Corresponding third channel conversion and the on-off controller 13 and liquid container 12 UNICOMs of increasing, under normality, third channel conversion and on-off controller 13 make path 10 5 and liquid container 12 conductings, can make the second sample prepare pipeline 106 and liquid container 12 conductings after switching.Between first passage conversion simultaneously and on-off controller 4, second channel conversion and on-off controller 5 outlets, increase pipeline and connect, and use four-way on-off controller 15 to carry out break-make control.Between first passage conversion and on-off controller 4 and flow chamber outlet 107, increase third channel on-off controller 14 simultaneously and carry out break-make control, under normality, third channel on-off controller 14 is off-state, and other structures of this embodiment can be identical with the mode of the first embodiment.
carry out specimen needle 11 while cleaning, first liquid drive unit 2 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 carry out passage switching, the outlet of first liquid drive unit 2 is transferred to path 10 2 from path 10 1, third channel on-off controller 14 is opened simultaneously, make path 10 2 and flow chamber export 107 conductings, third channel conversion and on-off controller 13 switch makes the second sample prepare pipeline 106 and liquid container 12 conductings, under the driving of first liquid drive unit 2, its liquid of inhaling is by path 10 2, flow chamber outlet 107 and enter specimen needle 11 from specimen needle outlet 108, subsequently from specimen needle entrance 109 flow through second sample prepare pipeline 106 enter liquid container 12, realize the back flush to specimen needle 11.
further, second liquid drive unit 3 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, second channel conversion and on-off controller 5 carry out passage switching, the outlet of second liquid drive unit 3 is transferred to the first sample from path 10 3 and prepares pipeline 104, under the driving of second liquid drive unit 3, its liquid of inhaling is prepared pipeline 104 by the first sample and is entered specimen needle 11 from specimen needle entrance 109, enter liquid container 12 from specimen needle outlet 108 path 10 5 of flowing through subsequently, realize the forward of specimen needle 11 is rinsed.
further, in the time carrying out specimen needle 11 back flush, by regulating the fluid injection time of first liquid drive unit 2, second liquid drive unit 3, can clean fluid flow used to specimen needle 11 by control device.In the time carrying out specimen needle 11 back flush, by regulating the injection speed of first liquid drive unit 2, second liquid drive unit 3, the flowing velocity of control device to specimen needle 11 cleaning liquids, coordinate the roughness of length, internal diameter size and the inner surface of specimen needle 11, can control the flow pattern of liquid in specimen needle 11, as laminar flow, turbulent flow, realize different cleaning performances.Carrying out specimen needle 11 while rinsing, by regulating the pattern of first liquid drive unit 2, second liquid drive unit 3, as play liquid, imbibition, can control the flow direction to specimen needle 11 cleaning liquids, forward and the back flush of realization to specimen needle 11.
further, first liquid drive unit 2, second liquid drive unit 3 is drawn cleaning fluid simultaneously from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 and second channel conversion and on-off controller 5 carry out respectively passage switching, first liquid drive unit 2 exports from path 10 1 and is transferred to path 10 2, the outlet of second liquid drive unit 3 is transferred to the first sample from path 10 3 and prepares pipeline 104, third channel on-off controller 14 is opened simultaneously, make path 10 2 and flow chamber export 107 conductings, third channel conversion and on-off controller 13 switch makes the first sample prepare pipeline 104, the second sample is prepared pipeline 106 and liquid container 12 conductings, under the driving of first liquid drive unit 2, its liquid of inhaling is by path 10 2, flow chamber outlet 107 and enter specimen needle 11 from specimen needle outlet 108, subsequently from specimen needle entrance 109 flow through second sample prepare pipeline 106 enter liquid container 12.The flushing that realizes the back flush to specimen needle 11 simultaneously and the first sample is prepared to pipeline 104, the second sample preparation pipeline 106, can save scavenging period, improves cleaning efficiency.
further, first liquid drive unit 2 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 carry out passage switching, the outlet of first liquid drive unit 2 is transferred to path 10 2 from path 10 1, third channel on-off controller 14 is opened simultaneously, make path 10 2 and flow chamber export 107 conductings, third channel conversion and on-off controller 13 switch makes the second sample prepare pipeline 106 and liquid container 12 conductings, under the driving of first liquid drive unit 2, its liquid of inhaling is by path 10 2, flow chamber outlet 107 and enter specimen needle 11 from specimen needle outlet 108, subsequently from specimen needle entrance 109 flow through second sample prepare pipeline 106 enter liquid container 12, realize the back flush to specimen needle 11, the back flush duration is T1.Second liquid drive unit 3 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, second channel conversion and on-off controller 5 carry out passage switching, the outlet of second liquid drive unit 3 is transferred to the first sample from path 10 3 and prepares pipeline 104, under the driving of second liquid drive unit 3, its liquid of inhaling is prepared pipeline 104 by the first sample and is entered specimen needle 11 from specimen needle entrance 109, enter liquid container 12 from specimen needle outlet 108 path 10 5 of flowing through subsequently, realize the forward of specimen needle 11 is rinsed, it is T2 that forward rinses the duration.Forward and back flush hocket, and can realize in the mode of frequency T1/T2 or T2/T1 specimen needle 11 is carried out to forward and reverse flushing, strengthen cleaning performance.
further, first liquid drive unit 2 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 carry out passage switching, make the outlet of first passage conversion and on-off controller 4 be transferred to passage 110 from path 10 1, third channel conversion and on-off controller 13 switch makes the second sample prepare pipeline 106 and liquid container 12 conductings, third channel on-off controller 14 is closed simultaneously, four-way on-off controller 15 is opened, the now outlet of first liquid drive unit 2 is through passage 110, 111, the first sample is prepared pipeline 104, the second sample is prepared pipeline 106 and is entered liquid container 12, under the driving of first liquid drive unit 2, its liquid of inhaling is by realizing the flushing of the first sample being prepared to pipeline 104 and the second sample preparation pipeline 106 with upper channel.
further, first liquid drive unit 2 is drawn cleaning fluid from liquid storage tank 1, after imbibition completes, first passage conversion and on-off controller 4 carry out passage switching, third channel on-off controller 14 is closed simultaneously, four-way on-off controller 15 is opened, make the outlet of first liquid drive unit 2 through passage 110, 111 and first sample prepare pipeline 104 enter specimen needle 11 from specimen needle entrance 109, enter liquid container 12 from specimen needle outlet 108 path 10 5 of flowing through subsequently, under the driving of first liquid drive unit 2, its liquid of inhaling is by realizing the forward of specimen needle 11 is rinsed with upper channel.
the foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a cleaning device for specimen needle, is characterized in that, comprising: specimen needle, and the specimen needle fixed chamber that specimen needle is fixed, is inside equipped with the liquid storage tank of cleaning fluid, first liquid drive unit, second liquid drive unit;
The outlet docking specimen needle fixed chamber entrance of described specimen needle, the entrance of described specimen needle is connected with the first sample and prepares pipeline and the second sample preparation pipeline; Described first liquid drive unit is connected with first passage conversion and on-off controller, and described first passage conversion is connected liquid storage tank with one end of on-off controller, and the other end connects the outlet of specimen needle fixed chamber; Described second liquid drive unit is connected with second channel conversion and on-off controller, and described second channel conversion is connected liquid storage tank with one end of on-off controller, and the other end connects the first sample and prepares pipeline;
Described cleaning device also comprises liquid container group, described liquid container group prepares pipeline with described the second sample and specimen needle fixed chamber entrance is connected, prepare the break-make of pipeline and specimen needle fixed chamber entrance for controlling described the second sample, the cleaning fluid of the second sample being prepared to pipeline and the conveying of specimen needle fixed chamber entrance stores, and prepares pipeline and specimen needle fixed chamber entrance to the second sample the cleaning fluid loopback storing.
2.
the cleaning device of a kind of specimen needle according to claim 1, is characterized in that, described liquid container group comprises first liquid container, second liquid container, first passage on-off controller, second channel on-off controller; Described first liquid container connects first passage on-off controller, specimen needle fixed chamber entrance successively, and described second liquid container connects second channel on-off controller successively, the second sample is prepared pipeline.
3.
the cleaning device of a kind of specimen needle according to claim 1, is characterized in that, described liquid container group comprises liquid container, the third channel conversion and the on-off controller that are connected with this liquid container; Described third channel conversion is connected respectively specimen needle fixed chamber entrance with the two ends of on-off controller, the second sample is prepared pipeline.
4.
according to the cleaning device of a kind of specimen needle described in claim 1-3 any one, it is characterized in that, described specimen needle fixed chamber is flow chamber.
5.
the cleaning device of a kind of specimen needle according to claim 4, it is characterized in that, the other end of described first passage conversion and on-off controller is connected with the outlet of specimen needle fixed chamber by third channel on-off controller, and is connected with the other end of second channel conversion and on-off controller by four-way on-off controller.
6.
application rights requires a method for a kind of cleaning device of specimen needle described in 1, it is characterized in that, comprises the following steps:
first liquid drive unit is drawn after cleaning fluid from liquid storage tank, first passage conversion and on-off controller carry out passage switching, cleaning fluid enters specimen needle by the outlet of specimen needle fixed chamber under the driving of first liquid drive unit, prepare pipeline from specimen needle inlet streams through the second sample subsequently and enter liquid container group, specimen needle is carried out to back flush; When specimen needle is carried out to back flush, second liquid drive unit is drawn cleaning fluid from liquid storage tank, second channel conversion and on-off controller carry out passage switching, cleaning fluid is flowed through under the driving of second liquid drive unit, and the first sample is prepared pipeline, the second sample is prepared pipeline and entered liquid container group, and specimen needle and first and second sample preparation pipeline are rinsed;
second liquid drive unit is drawn after cleaning fluid from liquid storage tank, second channel conversion and on-off controller carry out passage switching, cleaning fluid is flowed through under the driving of second liquid drive unit, and the first sample is prepared pipeline, specimen needle entrance enters specimen needle, the specimen needle of flowing through subsequently outlet, specimen needle fixed chamber entrance enter liquid container group, and specimen needle is carried out to forward flushing;
the time of described specimen needle back flush is Preset Time value T1, and the time that described specimen needle forward rinses is Preset Time value T2; Described cleaning method hockets according to T1/T2 or T2/T1 hockets.
7.
the cleaning method of a kind of specimen needle according to claim 6, is characterized in that, described cleaning fluid is diluent or cleaning agent.
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| CN113714215A (en) * | 2021-08-25 | 2021-11-30 | 宁波江丰电子材料股份有限公司 | Cleaning method of cooling disc for semiconductor |
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| CN104690044A (en) * | 2015-03-09 | 2015-06-10 | 北京普立泰科仪器有限公司 | Active type sampling probe washing device capable of preventing cross infection and cleaning method |
| CN114556086A (en) * | 2020-05-19 | 2022-05-27 | 生命科技股份有限公司 | Nozzle sealing and unclogging station for flow cytometer |
| CN113714215A (en) * | 2021-08-25 | 2021-11-30 | 宁波江丰电子材料股份有限公司 | Cleaning method of cooling disc for semiconductor |
| CN114589636A (en) * | 2022-03-14 | 2022-06-07 | 陕西捷特智能科技有限公司 | Device and method for cleaning inner flow channel of pneumatic reciprocating jet 3D complex part based on magnetic guidance |
| CN114589636B (en) * | 2022-03-14 | 2023-02-17 | 陕西捷特智能科技有限公司 | Device and method for cleaning inner flow channel of 3D complex part based on magnetic guiding pneumatic reciprocating jet flow |
| CN116359524A (en) * | 2023-05-31 | 2023-06-30 | 深圳市帝迈生物技术有限公司 | Sample detection device |
| CN116359524B (en) * | 2023-05-31 | 2023-09-15 | 深圳市帝迈生物技术有限公司 | Sample detection device |
| CN117902089A (en) * | 2024-03-18 | 2024-04-19 | 莱阳市昌安检验检测有限公司 | Sample storage device for architectural coating detection |
| CN117902089B (en) * | 2024-03-18 | 2024-05-10 | 莱阳市昌安检验检测有限公司 | Sample storage device for architectural coating detection |
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| CN103861850B (en) | 2015-12-30 |
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