CN202631538U - Liquid distribution device - Google Patents
Liquid distribution device Download PDFInfo
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- CN202631538U CN202631538U CN 201220180044 CN201220180044U CN202631538U CN 202631538 U CN202631538 U CN 202631538U CN 201220180044 CN201220180044 CN 201220180044 CN 201220180044 U CN201220180044 U CN 201220180044U CN 202631538 U CN202631538 U CN 202631538U
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- liquid
- fluid pipeline
- seal space
- pump
- hermetic seal
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Abstract
The utility model provides a liquid distribution device which comprises a pump and a first liquid outlet pipeline, the first liquid outlet pipeline and the pump are communicated in liquid mode, and the pump can be controlled to enable liquid passes through the first liquid outlet pipeline to be sprayed on host materials. The liquid distribution device further comprises an air seal space which is communicated with the pump and the first liquid outlet pipeline in liquid mode, part of the air seal space is filled with the liquid, and part of the air seal space is filled with gas. As optimization, the cross-sectional area of the air seal space is larger than that of the first liquid outlet pipeline.
Description
Technical field
The utility model belongs to fluid distribution equipment, and is special, belongs to be sprayed onto liquid on the host material through the pump configuration in the equipment, for example on the cellulose nitrate film.
Background technology
Clinical detection is more and more universal, mainly is to utilize some detectable to detect in patients' the body fluid (detection sample) whether contain the target analyte.Such detectable or checkout equipment comprise that much the wherein main immunology principle that utilizes carries out immune detection.Immunoassays can adopt different modes and form to carry out.Use all of immunoassays multi-form among, the most widely used those immunoassays that possibly be to use fixing antibody and/or antigen, application solid phase to separate.This technology is called as a kind of heterogeneous immunoassay in professional domain.When only in confirm detecting sample, containing the interest analysis thing, just need to separate fixing antibody and/or antigen, come to measure effectively, only if wherein stationary phase as a physical coupling site permission through the washing step target material of making a return journey.
Certainly; What use was the most general in those immunoassays that solid phase is separated is exactly that the cross flow system detects, ankyrin on the solid-phase matrix material, for example antibody/antigen; When analyte in the sample exists; Ankyrin on the host material, for example antibody/antigen just shows indirectly special or directly combines analyte, utilizes colour developing to represent whether to contain analyte or through instrument what of definite analyte of having read parameter then.For example at reagent strip that the following patent is described or contain in the device of reagent strip concrete description: US 4857453 is all arranged; US 5073484; US 5119831; US 5185127; US 5275785; US 5416000; US 5504013; US 5602040; US 5622871; US 5654162; US 5656503; US 5686315; US 5766961; US 5770460; US 5916815; US 5976895; US 6248598; US 6140136; US 6187269; US 6187598; US 6228660; US 6235241; US 6306642; US 6352862; US 6372515; US 6379620; With US 6403383.
Need carry out this type detection, important aspect is exactly more fixing reagent on the solid-phase matrix material how, and these reagent can be any materials, albumen for example, and antibody, antigen or other are in order to accomplish the material that detection need be handled.
Begin most to adopt manual mode to be configured to solution to the fixing material of needs, use dropper according to certain amount then, for example 1 milliliter of/square centimeter processing is dried on these solid-phase matrix materials at last.
Afterwards, along with the development of electronic equipment, some automation equipments had progressively replaced craft, not only let production efficiency improve, and had also improved precision and the accuracy at solid-phase matrix material processed reagent simultaneously.For example; Commonly used is exactly utilizes utilization such as stepper motor or servomotor of electric pulse principle to transmit to bring the drive pump configuration to carry out the transmission of liquid; Automatically be sprayed at the solid-phase matrix material to the reagent that needs are handled automatically through pipeline then, and then the solid-phase matrix material is carried out drying or other treatment steps.The equipment of this type is at United States Patent (USP) 7754439,7541068, detailed description all arranged in 7736591,7470547.With the stepper motor is example, and stepper motor is a kind of topworks that electric pulse is converted into angular displacement.When step actuator receives a pulse signal, it rotates a fixing angle (being called " step angle ") with regard to drive stepping motor by the direction of setting, and its rotation is to move step by step with fixing angle.Can come the pilot angle displacement through the gating pulse number, thereby reach the purpose of accurate location; Can control speed and the acceleration that motor rotates through the gating pulse frequency simultaneously, thereby reach the purpose of speed governing.Stepper motor can be used as a kind of specific type of electric machine of controlling usefulness, utilizes its characteristics that do not have accumulated error, is widely used in the various open loop controls.
But utilize the stepper motor of electric pulse principle or servomotor when carrying out the liquid distribution or handling automatically, also to have intrinsic defective; Particularly handling liquid reagent on the solid-phase matrix material; Also exposing intrinsic defective, mainly is the own characteristic owing to the operation of electric pulse principle, and the performance of treat liquid reagent is inhomogeneous on the solid-phase matrix material; When need on host material, handling the reagent lines of linear, it is more outstanding that this defective shows.The one side that addresses this problem just is to use more accurate equipment, for example uses more little equipment of step angle or the higher servomotor of precision, but needs high cost like this.This just need provide a more cheap equipment, satisfies the technological requirement of liquid allocation process simultaneously.
Summary of the invention
In order to overcome the above problems; The utility model provides a kind of liquid allocation process device; This equipment can improve on traditional device, can satisfy day by day on the one hand liquid reagent is handled the requirement in the precision of solid-phase matrix material, does not increase the cost of equipment on the other hand.
A kind of fluid distribution equipment; This equipment comprises: the pump and the first fluid pipeline, and the first fluid pipeline and this pump are liquid communication, are sprayed onto on the host material through the first fluid pipeline by liquid through control pump; Wherein, This equipment also comprise with the pump and the first fluid transport line be the hermetic seal space of fluid connection, in this hermetic seal space the part by liquid filling, the part filled by gas.
Preferably, the hermetic seal space also is connected with pump through the second fluid pipeline.
Preferably, the cross-sectional area in said hermetic seal space is greater than the cross-sectional area of the second fluid pipeline.
Preferably, the cross-sectional area in said hermetic seal space is greater than the cross-sectional area of the first fluid pipeline.
Preferably, the hermetic seal space is looked into part and sealing and is looked into the part receiving element and be sealed and matched and form by drawing together sealing.
Preferably,, the second fluid pipeline is looked into the part receiving element with sealing and is connected; The first fluid pipeline is looked into part with sealing and is connected.
Preferably, the opening of the described first fluid pipeline and the second fluid pipeline all is immersed in the liquid in the hermetic seal space.
Preferably, the described first fluid pipeline is connected with shower nozzle, and liquid is sprayed onto on the host material through described shower nozzle.
Preferably, host material is a cellulose nitrate film.
Preferably, this equipment also comprises the motor that adopts the motion of electric pulse driving pump; Described pump is a syringe pump, and this syringe pump comprises piston and piston bucket, the piston motion in the motor-driven piston bucket.
On the other hand, the utility model provides a kind of liquid allocation process device, and this equipment comprises: the pump and the first fluid pipeline; The first fluid pipeline and this pump are liquid communication; Be sprayed onto on the solid-phase matrix material through the first fluid pipeline by liquid through control pump, wherein, this equipment also comprise with the pump and the first fluid transport line be the hermetic seal space of fluid connection; Part is by liquid filling in the hermetic seal space, and part is filled by gas.
In some preferred embodiments, let the liquid of self-pumping first, and then get into the first fluid pipeline through the hermetic seal space.More preferred, pump is controlled through stepper motor or servomotor automatically.
In other preferred modes, the hermetic seal space is connected with pump through the second fluid pipeline.In this mode, pump connects the second fluid pipeline, and the second fluid pipeline is connected with the hermetic seal space, and the first fluid pipeline also is connected with the hermetic seal space simultaneously.Come the liquid reagent of self-pumping to get into the hermetic seal space through the second fluid pipeline earlier, get into the first fluid pipeline through the hermetic seal space then, dripped at the solid-phase matrix material through the first fluid pipeline at last.
In other preferred modes, the cross-sectional area in affiliated hermetic seal space is greater than the cross-sectional area of the second fluid pipeline.More preferred, the cross-sectional area in hermetic seal space is greater than the cross-sectional area of the first fluid pipeline.Perhaps, the cross-sectional area in hermetic seal space is promptly greater than the cross-sectional area of the second fluid pipeline, again greater than the cross-sectional area of the first fluid pipeline.In some more preferred modes, the opening of the first fluid pipeline and the second fluid pipeline all is immersed in the liquid in the hermetic seal space.
In a preferred mode, the hermetic seal space is the hermetic seal space, and part is by liquid filling in the space, and part is filled by gas.Preferably, gas is air.In another preferred mode; The hermetic seal space is looked into part and sealing and is looked into the part receiving element and be sealed and matched and form by drawing together sealing; Look into part in sealing and look into a part that all comprises the hermetic seal space in two parts of part receiving element with sealing, both are sealed and matched and form a complete seal cavity.In a mode, the second fluid pipeline is looked into the part receiving element with sealing and is connected; The first fluid pipeline is looked into part with sealing and is connected.
In some preferred modes, the first fluid pipeline is connected with shower nozzle, and liquid is sprayed onto on the host material through described shower nozzle.Host material can be cellulose nitrate film, nylon membrane.
On the other hand; The utility model provides a kind of fluid dispensation method, and this method comprises: be processed on the solid-phase matrix material, wherein through the first fluid pipeline by liquid through pump; Let pump liquid certainly earlier through the hermetic seal space; Get into the first fluid pipeline then, this hermetic seal space segment space is by liquid filling, and part is by fills with air.
In some preferred modes, let pump be connected with stepper motor or servomotor, let liquid be assigned with automatically.In the other optimal way, the hermetic seal space is the hermetic cavity body.
Beneficial effect
Use the equipment of the utility model to come dispense liquid, the one, do not need expensive equipment, only need on existing Equipment Foundations be few, just improve and can implement; In addition, practicing thrift under the cost, can let the lines of processing on host material more well-balanced, level and smooth, reducing laciniation.
Description of drawings
Fig. 1 is traditional fluid distribution equipment structural representation;
Fig. 2 is the fluid distribution equipment structural representation in the embodiment of the utility model;
Fig. 3 is for comprising the impact damper section isolating construction synoptic diagram in hermetic seal space in the embodiment of the utility model;
Fig. 4 is for comprising the impact damper section unitized construction synoptic diagram in hermetic seal space in the embodiment of the utility model;
Fig. 5 is a hermetic seal space structure synoptic diagram in the embodiment of the utility model;
Fig. 6 is stepper motor or servomotor work principle synoptic diagram;
Fig. 7 is that the fluid distribution equipment that utilizes traditional stepper motor or servomotor to drive carries out the planar structure synoptic diagram that spraying liquid on the solid-phase matrix material forms lines again;
Fig. 8 utilizes the improved fluid distribution equipment of the utility model to carry out the planar structure synoptic diagram of spraying liquid formation lines on the solid-phase matrix material again;
Description of reference numerals:
Embodiment
In conjunction with accompanying drawing, the structure or these the employed concrete technical schemes that reach in the face of the utility model are down done further explanation.These explanations are just carried out limited explanation to the part embodiment of the utility model, do not constitute the desired claim of the utility model is done further restriction.
Fig. 1 is a concrete method of operation of traditional fluid distribution equipment 108; In this embodiment; Pump can be the syringe pump of using always 120; This pump is driven by driver 142 automatically, driver, and the stepper motor that for example can comprise employing electric pulse principle commonly used operation carries out or servomotor drives piston 118 in the syringe pump and comes and goes for 162 li at the piston bucket and move back and forth.One of ordinary skill in the art is known, and when piston 118 is retracted, for example moves downward, and the liquid 130 that is positioned at liquid storeroom 116 gets into syringe pump 12 the insides through controlled valve 145.When piston 118 is urged into motion, when for example moving upward, the liquid 130 that is positioned at 120 li of syringe pumps is urged into fluid pipeline 153,152 for 162 li from the piston bucket, gets into shower nozzle 128 then, is sprayed or drips on the solid-phase matrix material through shower nozzle.
In traditional liquid plant, the concrete principle that adopts the electric pulse principle to drive the motion of 120 li pistons of syringe pump usually is that persons skilled in the art are familiar with, and concrete analysis as follows.Stepper motor or servomotor are a kind of topworkies that electric pulse is converted into angular displacement.Existing is that example is carried out detailed explanation with the stepper motor.When step actuator receives a pulse signal, it rotates a fixing angle (being called " step angle ") with regard to drive stepping motor by the direction of setting, and its rotation is to move step by step with fixing angle.Can come the pilot angle displacement through the gating pulse number, thereby reach the purpose of accurate location; Can control speed and the acceleration that motor rotates through the gating pulse frequency simultaneously, thereby reach the purpose of speed governing.Stepper motor can be used as a kind of specific type of electric machine of controlling usefulness, utilizes its characteristics that do not have accumulated error (precision is 100%), is widely used in various open loop controls.Stepper motor has in control system widely to be used.It can become angular displacement to the pulse conversion of signals, and can be used as electromagnetic system driving wheel, electromagnetism difference engine or angular displacement generator etc.
Stepper motor can be divided into three kinds according to the stepper motor driver mode of operation: synchronizing, half step, segmentation, its key distinction is the control accuracy (being excitation mode) of motor coil electric current.
Synchronizing drives.Both can join with a kind of stepper motor whole/partly go on foot driver and also can join subdivision driver, but operational effect is different.Stepper motor driver is excitatory to two coil circulations of two-phase stepping motor by pulse/direction signal, and each pulse of this type of drive will make motor move a basic step angle, i.e. 1.8 degree (circle of standard two-phase induction motor has 200 step angles).
Half step drove (2 segmentation).When excitatory, machine shaft stops to the synchronizing position single-phase, and after driver is received next pulse, mutually excitatory and keep being in excitatory state originally in succession as giving another, then machine shaft will move step angle half, be parked in the centre of adjacent two synchronizing positions.So circularly two phase coils being carried out the excitatory stepper motor of single-phase two-phase then will rotate with half step mode of each pulse 0.9 degree.
Segmentation drives.The segmentation drive pattern has the minimum and bearing accuracy high two big advantages of low speed vibration.Can be used in needs in slow running or the stepper motor application scheme of positioning accuracy request less than 0.9 degree sometimes.Its ultimate principle is that two coils of motor are carried out precision current control by sinusoidal step with cosine-shaped respectively, thereby makes the distance of a step angle be divided into the completion of several segmentations step.
In sum, in any case still there is the step pitch error in the segmentation step angle, this be because the motion of stepper motor be not at the uniform velocity with the motion that links up, be outwardness, cause that the characteristics that this reason principal element is an electric pulse itself determine.In addition, stepper motor whenever makes a move, and all has the step pitch error between the angular displacement that rotor is actual and the step angle of design.When walking some steps continuously, above-mentioned error forms accumulated value.After rotor turns over a circle, be back to the settling position of a commentaries on classics, so the step pitch error of stepper motor can long-term accumulated.The principal element that influences stepper motor step pitch sum of errors cumulative errors has: tooth laminates with indexing accuracy, the iron core of magnetic pole and assembly precision, each degree of irregularity of the size of difference, air gap etc. between the torque angle displacement characteristic mutually.
Because the existence of above error, in fact, the piston 118 in the pump is not at the uniform velocity in the motion of 162 li in piston bucket; But the motion at free interval just in motion, looks like the motion that at the uniform velocity links up; Be actually incoherent motion, like this neither be at the uniform velocity in transportation or the motion of promotion liquid in pipeline, the motion that links up; But free interval, for example 0.1 second or the more small time interval.The precision of the stepper motor of this time interval and employing has relation, if precision is high more, the time interval is more little, and on the contrary, precision is got over the end, and the time interval is long more.For example, in the same time, need the same distance B of operation, precision is low need interlude long (Fig. 6, A); Precision is high need interlude short (Fig. 6, B).The driving of this mode lets the forms of motion of liquid in pipeline also like the mode of motion of Fig. 7, also has the time interval, and under a stable condition, it is with being sprayed onto on the solid-phase matrix material drop by drop that this time interval just shows liquid.In utilization; When needs form uniform lines on the solid-phase matrix material when; Utilize the fluid distribution equipment of Traditional use step motor drive piston motion to show and have tangible zigzag (Fig. 8) at the lines that spray; When the stepper motor of the equipment that particularly adopts was not very accurate, the phenomenon of this jagged lines was the most obviously with outstanding.
Formal such reason, the utility model proposes a kind of technical scheme, a hermetic seal space 305 is provided at pump with spraying between the pipeline, lets in this space a part filled by liquid 130, and another part is by gas 306 fillings (Fig. 5).Can well overcome some defectives that the stepper motor that adopts electric pulse formula principle to drive carries out piston motion in the driving pump like this, finally let the lines that are sprayed on the solid-phase matrix material more even, reduce jagged lines (Fig. 8).When manipulating, filling part liquid in space 305 inserts the liquid transport line then earlier, lets space 305 become sealing.Along with moving of piston; Liquid from piston bucket 162 is introduced into seal cavity 305 through the second fluid pipeline, along with increasing of liquid, and the gas 306 of compressing seal cavity 305; Compression along with gas; The acting force that gas produces acts on liquid surface, lets liquid get into the first fluid pipeline then, thereby is sprayed on the solid-phase matrix material.In this embodiment; If the cross-sectional area in hermetic seal space 305 is the same with the cross-sectional area of pipeline; Almost not too big improving of the lines that spray (comparing) with traditional device; When the cross-sectional area in hermetic seal space 305 greater than the cross-sectional area of pipeline the time, because this structure can reduce the inherent defect that produces because of the piston in the step motor drive pump.
In a preferred mode, the cross-sectional area in hermetic seal space 305 is at least greater than the cross-sectional area of the second fluid pipeline.Perhaps, the cross-sectional area in hermetic seal space 305 also can be all greater than the second fluid pipeline and the first fluid pipeline cross-sectional area.Certainly, the second fluid pipeline with the cross-sectional area of the first fluid pipeline can be identical, also can be different.Preferably, the pipeline of selecting to have identical cross-sectional area is as the liquid transport channel.
" cross-sectional area " in said here hermetic seal space 305 is meant when having liquids and gases, and the square section at interphase 408 places of gas and liquid reaches and needs only than the second fluid pipeline or/and the cross-sectional area of the first fluid pipeline is greatly just passable.The cross-sectional area of liquid transport channel or pipeline generally is meant the feeder connection that links to each other with the hermetic seal space or the size of outlet, for example can be meant the cross-sectional area of outlet 307 of inlet 308 and the first fluid pipeline of the second fluid pipeline.
Or/and the cross-sectional area of the first fluid pipeline, for example the cross-sectional area in hermetic seal space and the second fluid pipeline are or/and the ratio of the cross-sectional area of the first fluid pipeline can be 2:1 to the cross-sectional area in hermetic seal space greater than the second fluid pipeline; 4:1; 8:1; 10:1; 15:1; 20:1; 40:1; 80:1; 100:1.Like this, when adopting the lower pulse motor of ratio of precision to move, can select the bigger structure of the two odds ratio; If in the time of the higher pulse motor of ratio of precision, can select the relatively little structural design of ratio.One of ordinary skill in the art can be expected after reading the utility model easily.
Liquids and gases that the hermetic seal space is 305 li distribute can any ratio, for example liquid for the hermetic seal spatial overall long-pending 1/2,1/3,1/4,1/5,1/8,1/10, remaining space is as the gas packing space.In another preferred mode, let the second fluid pipeline inlet and the outlet of the first fluid pipeline all be immersed in the liquid.In addition, the shape in hermetic seal space can make arbitrary shape, oblong-shaped for example, right cylinder, rhombus or the like.
As some preferred modes, hermetic seal space 305 exists in the buffering cavity 3000, and the buffering cavity can comprise two parts; A part is a sealed inserted piece 301, and another part is 302, two parts 301 of sealed inserted piece receiving element; 302 comprise a cavity 303,304 (Fig. 3) separately, and both are connected as a single entity through grafting; Final hermetic seal space 305 (Fig. 4) that form; Can in cavity 304, fill some liquid 130 earlier like this, and then be plugged in the parts 302, so just form liquid gas interface in the hermetic seal space.In order better to increase the sealing that forms seal cavity between two parts, on parts 301, comprise the O-ring seal of an annular.On the buffering cavity, two ends are connected with the pipeline of pipeline as transport liquid respectively, and a pipeline is communicated with pump liquid, and another pipeline is used for spraying liquid.In a preferred mode, second place's liquid pipeline also connects a shower nozzle 128, through shower nozzle spray liquid in the solid-phase matrix material.
Here said liquid can make any liquid, and general liquid all comprises some reagent, for example antibody, antigen; These reagent are processed on the solid-phase matrix material through the equipment of the utility model; Let the reagent more even distribution, when being lines, make lines more well-balanced; Smoothly, thus improved the quality of product.
The solid-phase matrix material can be any material, glass, absorptive, non-absorptive for example, plastic tab etc.In a preferred mode, the solid-phase matrix material is a porous water-absorbing material, for example is cellulose nitrate film, nylon film etc.
In yet another aspect; Hermetic seal space 305 can exist as independent parts between pump and pipeline, also can be to combine with pump structure; As long as let the liquid of self-pumping be introduced into 305 li in hermetic seal space, and then through pipeline transportation in shower nozzle (if having); It doesn't matter as for the particular location in hermetic seal space.On a liquid flow path, can arrange a plurality of hermetic seals space 305 arbitrarily in addition, for example, arrange that on second fluid-carrying lines a plurality of hermetic seals space all is feasible.Can freely select according to the impulse magnitude of motor as for the square section in hermetic seal space and with the selection between the cross-sectional area of pipeline, through the description of the utility model, one of ordinary skill in the art can obtain through limited test.Do not do too much illustrating at this.
Claims (10)
1. fluid distribution equipment, this equipment comprises: the pump and the first fluid pipeline, the first fluid pipeline and this pump are liquid communication; Be sprayed onto on the host material through the first fluid pipeline by liquid through control pump; It is characterized in that,, this equipment also comprise with the pump and the first fluid transport line be the hermetic seal space of fluid connection; Part is by liquid filling in this hermetic seal space, and part is filled by gas.
2. equipment according to claim 1 is characterized in that, the hermetic seal space also is connected with pump through the second fluid pipeline.
3. equipment according to claim 2 is characterized in that, the cross-sectional area in said hermetic seal space is greater than the cross-sectional area of the second fluid pipeline.
4. equipment according to claim 2 is characterized in that, the cross-sectional area in said hermetic seal space is greater than the cross-sectional area of the first fluid pipeline.
5. equipment according to claim 2 is characterized in that, the hermetic seal space is looked into part and sealing and looked into the part receiving element and be sealed and matched and form by drawing together sealing.
6. equipment according to claim 5 is characterized in that, the second fluid pipeline is looked into the part receiving element with sealing and is connected; The first fluid pipeline is looked into part with sealing and is connected.
7. equipment according to claim 2 is characterized in that, the outlet of the inlet of the described first fluid pipeline and the second fluid pipeline all is immersed in the liquid in the hermetic seal space.
8. equipment according to claim 2 is characterized in that, the described first fluid pipeline is connected with shower nozzle, and liquid is sprayed onto on the host material through described shower nozzle.
9. equipment according to claim 1 is characterized in that, host material is a cellulose nitrate film.
10. equipment according to claim 1 is characterized in that, this equipment also comprises the motor that adopts the motion of electric pulse driving pump; Described pump is a syringe pump, and this syringe pump comprises piston and piston bucket, the piston motion in the motor-driven piston bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220180044 CN202631538U (en) | 2012-04-25 | 2012-04-25 | Liquid distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220180044 CN202631538U (en) | 2012-04-25 | 2012-04-25 | Liquid distribution device |
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| CN202631538U true CN202631538U (en) | 2012-12-26 |
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| CN 201220180044 Expired - Lifetime CN202631538U (en) | 2012-04-25 | 2012-04-25 | Liquid distribution device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376334A (en) * | 2012-04-25 | 2013-10-30 | 艾博生物医药(杭州)有限公司 | Liquid distribution equipment |
-
2012
- 2012-04-25 CN CN 201220180044 patent/CN202631538U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376334A (en) * | 2012-04-25 | 2013-10-30 | 艾博生物医药(杭州)有限公司 | Liquid distribution equipment |
| CN103376334B (en) * | 2012-04-25 | 2015-02-11 | 艾博生物医药(杭州)有限公司 | Liquid distribution equipment |
| CN104759373A (en) * | 2012-04-25 | 2015-07-08 | 艾博生物医药(杭州)有限公司 | Liquid distribution device |
| CN104759373B (en) * | 2012-04-25 | 2017-08-01 | 艾博生物医药(杭州)有限公司 | A kind of fluid distribution equipment |
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Granted publication date: 20121226 |