CN104111342B - Accurate sample adding system, accurate loading methods and biochemistry analyzer - Google Patents
Accurate sample adding system, accurate loading methods and biochemistry analyzer Download PDFInfo
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Abstract
A kind of accurate sample adding system, including movable sampling needle and at least two sample injector, described sample injector is connected with described movable sampling needle by pipeline, by the volume of increase at least one of which sample injector to carry out inhaling sample, by reducing the volume of another sample injector of at least a part of which to carry out stock layout.Additionally provide a kind of accurate loading methods and the biochemistry analyzer of this precision sample adding system of a kind of application simultaneously, because being provided with at least two sample injector, so being distributed by function, inhale sample and stock layout action can be completed by different sample injectors, sample injector is avoided to introduce hysterisis error during sample-adding, the sample injector of not co-content different accuracy can also be selected, it is achieved the accuracy and speed requirement of wider sample-adding scope simultaneously.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of accurate sample adding system, accurate loading methods
And apply the biochemistry analyzer of this precision sample adding system.
Background technology
Biochemistry analyzer is one of important analysis instrument commonly used in Clinical Laboratory, it by blood or
The analysis of other body fluid measures various biochemical indicator, as transaminase, albumin, total protein, cholesterol,
Creatinine, glucose, Phos, amylase, calcium etc..In conjunction with other clinical data, comprehensively analyze,
Medical diagnosis on disease can be helped, organ dysfunction is made evaluation, differentiate complicating factors, and determine controlling from now on
Treatment scheme etc..The precision of sample adding system directly affects measurement result, therefore, sample adding system always be complete from
One of key technology of Automatic Biochemical Analyzer.
Be applied to the sample adding system of biochemistry analyzer, immunity analysis instrument, generally comprise one two logical or threeway
Stop valve, a precision syringe or plunger displacement pump, a movable sampling needle and corresponding pipeline, can
The sampling needle of motion completes to inhale sample and stock layout by coordinating the suction action of syringe.Sample-adding precision mainly takes
Certainly in syringe or the precision of plunger displacement pump.Inevitably there is following defect in this accurate sample adding system:
Owing to the drive part of syringe inevitably exists hysterisis error, trace can be added by this fractional error
The accuracy of sample and repeatability cause and directly affect, thus have influence on the precision of accurate sample adding system.General,
The hysterisis error that the syringe of one 1000uL introduces is about 0.1～10uL, for sample-adding amount less than 10uL
Occasion, the impact of hysterisis error is the most significant.Syringe volume is the biggest, and the hysterisis error of introducing is more
Greatly, so that precision reduces.Common practice compensates often by the correction of hysterisis error,
But in some sample-adding sequential, restricted by other performance factor, it is impossible to design correction backhaul action, or
Have no time for the timing of hysterisis error, now in order to reduce the impact of backhaul difference, it is necessary to select backhaul
The syringe that difference is the least is loaded, but still the impact of backhaul difference can not be completely eliminated；Additionally for some
Last a long time and the poor bigger syringe of backhaul, and in sequential, do not allow correction backhaul or time inadequate,
Therefore its application in sample adding system is limited.
Summary of the invention
Based on this, it is necessary to the problem affecting the precision of sample adding system for there is hysterisis error, it is provided that one
Plant and can eliminate the accurate sample adding system of hysterisis error, accurate loading methods and apply this precision sample adding system
Biochemistry analyzer.
A kind of accurate sample adding system, including movable sampling needle, also includes at least two sample injector, described
Sample injector is connected with described movable sampling needle by pipeline, by increasing at least one of which sample injector
Volume is to carry out inhaling sample, by reducing the volume of another sample injector of at least a part of which to carry out stock layout.
Wherein in an embodiment, described sample injector includes drive mechanism, cavity volume portion and export department, described
Drive mechanism motion can change the volume in described cavity volume portion, and the export department of described sample injector passes through pipeline and can transport
Dynamic sampling needle connection.
Wherein in an embodiment, described sample injector is syringe or plunger displacement pump.
Wherein in an embodiment, also including cleaning device, described cleaning device includes containing liquid device, clear
Washing pump and forced seal formula valve, described cleaning pump one end connects the pipeline for inserting described Sheng liquid device,
Described cleaning pump draws the cleaning liquid in described Sheng liquid device by one end of described pipeline；Described pressure is close
The two ends of envelope formula valve are connected with the other end and the movable sampling needle of described cleaning pump respectively by pipeline.
Wherein in an embodiment, described forced seal formula valve is stop valve, and described stop valve is two-way
Or three-way cut-off valve.
Wherein in an embodiment, described cleaning device is syringe, described syringe include drive mechanism,
Containing sap cavity and outlet, the motion of described drive mechanism can move back and forth along the inwall of described Sheng sap cavity, to change
The volume of described Sheng sap cavity, described outlet connects with described movable sampling needle with by pipeline.
Wherein in an embodiment, also include that liquid level sensor, described liquid level sensor are arranged at institute
Stating movable sampling needle, whether detection sampling needle stretches in sample liquid level.
Wherein in an embodiment, also including stifled needle detecting device, described stifled needle detecting device uses and arranges
Vacuum transducer at sampling needle inwall.
A kind of biochemistry analyzer, including optical system, purging system, temperature control system and control system, also wraps
Include above-described accurate sample adding system.
A kind of accurate loading methods, comprises the following steps:
Increase the volume of at least one of which sample injector to carry out inhaling sample；
Reduce the volume of another sample injector of at least a part of which to carry out stock layout.
Above-mentioned accurate sample adding system, accurate loading methods and biochemistry analyzer, add because being provided with at least two
Sample device, so being distributed by function, being inhaled sample and stock layout action is completed by different sample injectors, it is to avoid sample-adding
Device introduces hysterisis error during sample-adding, can also select the sample injector of not co-content different accuracy simultaneously, real
The accuracy and speed requirement of the widest sample-adding scope.
Accompanying drawing explanation
Fig. 1 is the structural representation of accurate sample adding system；
Fig. 2 is the structural representation of another embodiment of accurate sample adding system；
Fig. 3 is the flow chart of accurate loading methods.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the invention will be further described.
Refer to Fig. 1, a kind of accurate sample adding system 100, including movable sampling needle 120, also include to
Few two sample injectors, described sample injector is by pipeline with described movable sampling needle 120 even.By increasing
The volume of at least one of which sample injector is to carry out inhaling sample, by reducing the appearance of another sample injector of at least a part of which
Long-pending to carry out stock layout.
During above-mentioned accurate sample adding system work, movable sampling needle 120 is by pipeline with each sample injector even
Logical, when sample inhaled by needs, by increasing the volume of at least one of which sample injector, now within sample injector
Pressure is less than external pressure, so sample is inhaled into sampling needle 120, completes to inhale sample action.When needs stock layout,
By reducing the volume of another sample injector of at least a part of which, now the pressure within sample injector is more than external pressure,
So the sample having been drawn in sampling needle 120 is discharged, complete stock layout action.Because above-mentioned accurate sample-adding
System is by arranging at least two sample injector, and inhales sample and stock layout and completed by different sample injectors, so
Can avoid introducing hysterisis error during sample-adding.
Also refer to Fig. 1, specific to the accurate sample adding system 100 in the present embodiment, can include cleaning device
110 and movable sampling needle 120.Clean device 110 to include containing liquid device 112, clean pump 114 and strong
Sealing valve 116 processed.Described cleaning pump 114 one end connects the pipe for inserting described Sheng liquid device 112
Road, described cleaning pump 114 is drawn the water in described Sheng liquid device 112 etc. by one end of described pipeline and is cleaned
Liquid.The two ends of described forced seal formula valve 116 by pipeline respectively with another of described cleaning pump 114
End and movable sampling needle 120 connect.Accurate sample adding system 100 also includes two sample injectors, is respectively
First sample injector 130 and the second sample injector 140.First sample injector 130 include the first drive mechanism 132,
One cavity volume portion 134 and the first export department 136.Second sample injector 140 includes the second drive mechanism 142, second
Cavity volume portion 144 and the second export department 146.Described first drive mechanism 132 and the second drive mechanism 142 are moved
The first cavity volume portion 134 and volume in the second cavity volume portion 144, described first export department 136 He can be changed respectively
Second export department 146 is all connected with described cleaning device 110 and movable sampling needle 120 by pipeline.
Above-mentioned accurate sample adding system 100, when forced seal formula valve 116 is opened, cleans pump 114 by pipe
Road absorbs the cleaning liquid contained in liquid device 112, cleans pump 114 and is carried out sampling needle 120 inwall,
Irrigate whole pipeline simultaneously, make in pipeline hydraulically full.During sample-adding, forced seal formula valve 116 is closed,
The motion of sampling needle 120 is coordinated to complete to inhale sample and stock layout by the suction action of two sample injectors.At above-mentioned tool
Have in the accurate sample adding system of two sample injectors, be to be completed to inhale sample and stock layout, specifically by different sample injectors
Step is as follows:
When cleaning sampling needle 120 before sample-adding, once reset two sample injectors calibration simultaneously,
The most respectively the first drive mechanism 132 and the second drive mechanism 142 being pushed into calibration bits, calibration bits is typically being held
The top in chamber portion, i.e. cavity volume portion are near first export department 136 or that one end of the second export department 146.Multiple
After the calibration of position, the first drive mechanism 132 is moved a segment distance to the top orientation away from the first cavity volume portion 134；
Second drive mechanism 142 first moves to the tail end in the second cavity volume portion 144, makes the second cavity volume portion 144 be each filled with
Liquid, then move a segment distance near the top orientation in the second cavity volume portion 144.
When sampling needle 120 submerge sample need inhale sample time, the first drive mechanism 132 continue to away from first hold
The top orientation motion in chamber portion 134, the volume in the first cavity volume portion 134 increases, and sample is inhaled into sampling needle 120,
Complete to inhale sample action.Then sampling needle 120 leaves the continuation motion of sample containing device, carries out subsequent operation,
In sampling needle 120 motor process, the first drive mechanism 132 can continue to away from the first cavity volume portion 134
Top orientation motion because in the first cavity volume portion 134 pressure reduce, so atmospheric pressure more than first appearance
Pressure in chamber portion 134, so the air in air is pressed into sampling needle 120, at the needle point of sampling needle 120
Part forms air-isolation section, it is to avoid the liquid of tip portion is thrown away in moving process by sampling needle 120,
Cause catastrophe failure.
When sampling needle 120 needs stock layout, then by the second drive mechanism 142 near the second cavity volume portion 144
Top orientation motion, make the liquid in the second cavity volume portion 144 be squeezed, flow to from the second export department 146
Pipeline, the sample in extruding sampling needle 120, complete stock layout action.
When above-mentioned accurate sample adding system 100 works, carried out inhaling sample action and stock layout by different sample injectors respectively
Action, so the drive mechanism of two sample injectors does not the most move back and forth, thus without introducing, backhaul is poor,
Need not in sample-adding process lieutenant colonel's backhaul, also sample-adding precision will not be impacted, solve well
Sample adding system does not carries out school backhaul and makes the affected problem of sample-adding precision.Meanwhile, at this precision sample-adding it is
In system, it is also possible to select and last a long time and the poor slightly larger sample injector of backhaul, so in the whole product life cycle
In can to realize sample injector non-maintaining or few safeguard, cost-effective.
In above-mentioned accurate sample adding system, because not having backhaul poor, therefore not co-content, different essence can be selected
The sample injector of degree is loaded, and the amount of capacity of the most all sample injectors is the most equal, when small sample amount is loaded,
Use the high-precision sample injector of little volume, the high-precision requirement of small sample amount can be met.Add in large sample amount
During sample, use big volume sample injector at high speed, the requirement of large sample amount high acceleration can be met.If
To required precision is relatively low, rate request is higher, it is also possible to do small sample amount sample-adding with big volume sample injector, real
Sample-adding more at a high speed.On the premise of being clearly loaded accuracy and speed, can be by selecting most suitable adding
Sample device is loaded, it is achieved accuracy and speed self adaptation.
It is pointed out that cleaning device 110 is to realize after completing to inhale sample and stock layout action, to adopting
The purpose that sample pin 120 is carried out.So when accurate sample adding system only needs to carry out multiple sample-adding,
So it is not provided with cleaning device 110 also to can be by arranging at least two sample injector, realizes by different
Sample injector carries out inhaling sample and stock layout action, it is to avoid introduce the purpose of backhaul difference.So, cleaning device 110 is set
It is not necessary to.
It is pointed out that when accurate sample adding system arranges three sample injectors, can be by by two sample-addings
Device inhales sample, a sample injector stock layout, completes to be respectively completed suction sample and stock layout action by different sample-sucking devices.
It is of course also possible to by being inhaled sample by a sample injector, two sample injector stock layouts realize.Certainly, when arranging four
Individual or when more than four, samples, two sample injector stock layouts can be inhaled by arranging two sample injectors.
Specific in the present embodiment, described sample injector can be syringe, and wherein the piston rod of syringe i.e. drives
Motivation structure, the injection tube of syringe i.e. cavity volume portion, it is opened in the injection orifice i.e. export department of injection tube one end.Injection
Device utilizes change volume size to make changing of cavity volume internal pressure, thus absorbs and in exhaustjet device
The liquid in portion, simple in construction, convenient control.Certainly, in other examples, it is also possible to select plunger
Pump carries out inhaling sample and stock layout, the plunger of the plunger displacement pump i.e. drive mechanism of sample injector, and the pumping cylinder of plunger displacement pump i.e. adds
The cavity volume portion of sample device, the plunger delivery side of pump i.e. export department of sample injector, by reciprocal in pump cylinder of plunger
Motion, makes the volume formed between plunger and pump wall change, repeatedly sucks or in drain heightening pump cylinder body
Pressure, when at least two plunger displacement pump is set, i.e. can inhale sample and stock layout is completed by different plunger displacement pumps respectively,
Thus it is poor to eliminate backhaul.
Specific in the present embodiment, described forced seal formula valve 116 can be stop valve, and stop valve is two
Lead to or threeway.Stop valve during opening and closing between sealing surface frictional force little, durable in use, Lift
Not quite, easy to manufacture, easy to maintenance, and good airproof performance, between sealing surface, frictional force is little.When stop valve closes
When closing, it is ensured that whole pipeline has good sealing, sample injector changes cavity volume by changing volume
Pressure in portion, when the volume that drive mechanism and inwall are formed reduces, now the pressure within cavity volume increases,
So the liquid in cavity volume is flowed to pipeline by export department, discharge from sampling needle 120；When drive mechanism and inwall
When the volume formed increases, now the pressure within cavity volume reduces, and the liquid in pipeline flows to cavity volume portion, adopts
Sample pin carries out inhaling sample, thus completes to inhale sample and stock layout action.
Specific in the present embodiment, accurate sample adding system can also include liquid level sensor, is arranged at sampling
On pin 120, it is used for detecting whether sampling needle 120 stretches in sample liquid level, liquid level sensor and control system
System connects.When sampling needle 120 stretches in sample liquid level, control system can be fed back information to, control
System sends the order stopping continuing motion, and sampling needle 120 stops continuing motion after receiving order.Liquid is set
Face detection device is the bottom containing liquid device 112 in order to prevent sampling needle 120 from bumping against, thus to sampling needle 120
Play a protective role.
Specific in the present embodiment, accurate sample adding system can also include stifled needle detecting device, stifled pin detection dress
Putting and use the vacuum transducer being arranged on sampling needle inwall, vacuum transducer is also connected with control system.Sample-adding
Whole pipeline pressure can be made when device moves reciprocatingly to change, but because sampling needle blockage phenomenon,
Therefore liquid can not pass through sampling needle and suck or discharge line, so sampling needle inwall can produce certain true
Empty phenomenon, vacuum transducer is experienced vacuum and is converted into usable output signal to control system, control system
Send stopping and inhaling sample or the order of stock layout, prevent sample adding system from having an accident, then make by changing sampling needle
Sample adding system normally works.
Refer to Fig. 2, in other examples, a kind of accurate sample adding system 200, cleans device all right
For syringe, the referred to as the 3rd syringe 210.Described syringe includes piston rod 212, contains sap cavity 214 and go out
The mouth of a river 216.The motion of described piston rod 212 can move back and forth along the inwall containing sap cavity 214, contains sap cavity to change
The volume of 214, described outlet 216 is connected with described movable sampling needle 120 by pipeline.I.e. at this
In embodiment, there are three syringes, but the effect of three syringes is different.3rd syringe 210
As cleaning device, the first syringe 130 completes to inhale sample action, and the second syringe 140 completes stock layout action.
Specifically comprising the following steps that three syringes all pass through pipeline connection with sampling needle 120, the 3rd syringe 210 is made
For cleaning device.3rd syringe 210 fills with cleaning liquid, volume can ratio for inhaling sample and stock layout
First syringe 130 and the second syringe 140 are big, and the more cleaning liquid of convenient splendid attire is adopted for cleaning
Sample pin 120 inwall.Before inhaling sample and stock layout, the piston rod 212 of the 3rd syringe 210 moves, and makes first
In syringe 130 and the second syringe 140 and whole pipeline hydraulically full, then calibrate, step here
Suddenly identical, here with the embodiment arranging Sheng liquid device 112, cleaning pump 114 and forced seal formula valve 116
Repeat no more.After completing once to inhale sample and stock layout, the piston rod 212 of the 3rd syringe 210 continues to press on note
Liquid in emitter, discharges from sampling needle 120, to complete the cleaning to sampling needle 120.At the present embodiment
In, cleaning device is the purpose that syringe equally reaches to clean sampling needle, and simple in construction, convenient
Operation.Certainly, the volume of the 3rd syringe can also equal to or less than the first syringe and the second syringe
Volume.
A kind of biochemistry analyzer, including optical system, purging system, temperature control system and control system, also wraps
Include above-described accurate sample adding system.Optical system is by calculating absorbance, so that it is determined that instead
Answer the concentration of thing.Reaction cup is carried out by purging system, and reaction cup is cleaned and can be realized by two schemes,
I.e. clean reaction cup in machine and automatically change reaction cup.Temperature control system provides the steady temperature that reactant needs,
The method used is free vapour method, thermostatic water-bath method, constant temperature liquid heating etc..It is each that control system controls instrument
The work of individual part and the analyzing and processing of data and calculating.
Above-mentioned biochemistry analyzer, because being provided with accurate sample adding system, accurate sample adding system is by different adding
Sample device carries out inhaling sample and stock layout action, so it is poor to eliminate backhaul, it is ensured that the precision of sample adding system.
Refer to Fig. 3, a kind of accurate loading methods, comprise the following steps:
Step S110, increases the volume of at least one of which sample injector to carry out inhaling sample.When accurate sample adding system
When needs are loaded, by the drive mechanism of at least one of which sample injector to away from least one sample injector
Cavity volume portion top orientation motion, now cavity volume portion volume increase, sample is inhaled into sampling needle, completes
Inhale sample action.Then sampling needle leaves the continuation motion of sample containing device, carries out follow-up work.At sampling needle
In motor process, drive mechanism can continue to move, because in cavity volume portion to the top orientation away from cavity volume portion
Pressure reduces, so atmospheric pressure is more than the pressure in cavity volume portion, so the air in air is pressed into sampling
Pin, sampling needle tip portion formed air-isolation section, it is to avoid sampling needle in moving process by needle point
The liquid of part throws away.
Step S120, reduces the volume of another sample injector of at least a part of which to carry out stock layout.When sampling needle needs
During stock layout, then by the drive mechanism of at least another sample injector to the top in the cavity volume portion near another sample injector
Extreme direction moves, and makes the liquid in cavity volume portion be squeezed, and flows to pipeline from export department, in extruding sampling needle
Sample, completes stock layout action.
Above-mentioned accurate loading methods, because carrying out inhaling sample and stock layout action by different sample injectors, so not
Hysterisis error can be introduced, it is not necessary in sample-adding process lieutenant colonel's backhaul, also sample-adding precision will not be impacted,
Solve some sample adding systems well during sample-adding, not carry out school backhaul and make sample-adding precision be affected
Problem.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (10)
1. an accurate sample adding system, including movable sampling needle, it is characterised in that also include at least two
Individual sample injector, described sample injector includes drive mechanism, cavity volume portion and export department, and the motion of described drive mechanism can
Changing the volume in described cavity volume portion, the export department of described sample injector is connected with movable sampling needle by pipeline；
By the volume of increase at least one of which sample injector to carry out inhaling sample, by reducing at least a part of which, another adds
The volume of sample device, to carry out stock layout, is inhaled sample and stock layout is completed by different sample injectors, wherein,
For inhaling drive mechanism corresponding to the sample injector of sample from the beginning of the position away from top, cavity volume portion, to away from
The tip motions in cavity volume portion, in order to increase the volume in sample injector cavity volume portion to carry out inhaling sample, makes sample suck and adopts
Sample pin；For drive mechanism corresponding to the sample injector of stock layout from the beginning of the position away from top, cavity volume portion, to leaning on
The tip motions in nearly cavity volume portion, in order to reduce the volume in sample injector cavity volume portion to carry out stock layout, makes sample discharge
Sampling needle.
Accurate sample adding system the most according to claim 1, it is characterised in that described sample injector is injection
Device or plunger displacement pump.
Accurate sample adding system the most according to claim 1, it is characterised in that also include cleaning device,
Described cleaning device includes containing liquid device, cleaning pump and forced seal formula valve, and described cleaning pump one end connects
Having the pipeline for inserting described Sheng liquid device, described cleaning pump draws described Sheng by one end of described pipeline
Cleaning liquid in liquid device；The two ends of described forced seal formula valve by pipeline respectively with described cleaning pump
The other end and movable sampling needle connect.
Accurate sample adding system the most according to claim 3, it is characterised in that described forced seal formula valve
Door is stop valve, and described stop valve is two-way or three-way cut-off valve.
Accurate sample adding system the most according to claim 3, it is characterised in that described cleaning device is note
Emitter, described syringe includes drive mechanism, contains sap cavity and outlet, and the motion of described drive mechanism can be along institute
State contain sap cavity inwall move back and forth, to change the volume of described Sheng sap cavity, described outlet with pass through pipeline
Connect with described movable sampling needle.
Accurate sample adding system the most as claimed in any of claims 1 to 5, it is characterised in that also
Including liquid level sensor, described liquid level sensor is arranged at described movable sampling needle, detection sampling
Whether pin stretches in sample liquid level.
Accurate sample adding system the most as claimed in any of claims 1 to 5, it is characterised in that also
Including stifled needle detecting device, described stifled needle detecting device uses the vacuum transducer being arranged on sampling needle inwall.
8. a biochemistry analyzer, including optical system, purging system, temperature control system and control system, its
It is characterised by, also includes the accurate sample adding system described in any one in claim 1 to 7.
9. an accurate loading methods, it is characterised in that comprise the following steps:
Drive mechanism in all sample injectors is moved a segment distance to the top orientation away from self cavity volume portion；
The volume of increase at least one of which sample injector is to carry out inhaling sample, for inhaling corresponding the driving of sample injector of sample
Motivation structure, from the beginning of the position away from top, cavity volume portion, to the tip motions away from cavity volume portion, adds in order to increase
The volume of sample device, to carry out inhaling sample, makes sample suck sampling needle；
The volume of reduction another sample injector of at least a part of which is to carry out stock layout, corresponding for the sample injector of stock layout
Drive mechanism is from the beginning of the position away from top, cavity volume portion, to the tip motions near cavity volume portion, in order to reduce
The volume of sample injector, to carry out stock layout, makes sample discharge sampling needle；
Complete once to inhale sample and stock layout, and completed by different sample injectors.
10. according to the accurate loading methods described in claim 9, it is characterised in that suck at sample and adopt
After sample pin, also continue to the tip motions away from cavity volume portion for the drive mechanism inhaling the sample injector of sample corresponding,
Tip portion at sampling needle forms air-isolation section.
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| CN107271220A (en) * | 2017-08-17 | 2017-10-20 | 宁夏软件工程院有限公司 | A kind of on-line checking machine quantitative liquid taking device |
| CN108459171A (en) * | 2018-02-11 | 2018-08-28 | 苏州长光华医生物医学工程有限公司 | A kind of high-precision sample adding system |
| CN113138190A (en) * | 2020-01-17 | 2021-07-20 | 苏州迈瑞科技有限公司 | Urine sample detection device and detection method |
| CN114113566A (en) * | 2020-08-28 | 2022-03-01 | 深圳市帝迈生物技术有限公司 | Method for detecting clogging of sampling needle, blood analyzer, and computer storage medium |
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| CN1882827A (en) * | 2003-11-18 | 2006-12-20 | C2诊断公司 | Syringe block for a liquid analyser, especially for blood tests |
| CN101960315A (en) * | 2008-02-29 | 2011-01-26 | 贝克曼库尔特公司 | Cleaning liquid is handled the apparatus and method of probe |
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Application publication date: 20141022 Assignee: Shenzhen Mindray Animal Medical Technology Co.,Ltd. Assignor: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. Contract record no.: X2022440020009 Denomination of invention: Precise sample adding system, precise sample adding method and biochemical analyzer Granted publication date: 20160810 License type: Common License Record date: 20220804 |