CN207605754U - Ultrasonic pipettor - Google Patents
Ultrasonic pipettor Download PDFInfo
- Publication number
- CN207605754U CN207605754U CN201721423987.3U CN201721423987U CN207605754U CN 207605754 U CN207605754 U CN 207605754U CN 201721423987 U CN201721423987 U CN 201721423987U CN 207605754 U CN207605754 U CN 207605754U
- Authority
- CN
- China
- Prior art keywords
- liquid relief
- piezoelectric element
- relief ring
- microprobe
- vibration transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- General Preparation And Processing Of Foods (AREA)
Abstract
The utility model discloses ultrasonic pipettors, are related to micro-nano manufacturing field, can control liquid relief amount and reach nanoliter or the specification of picoliters.The utility model includes：Including vibration transmission member（1）, piezoelectric element（2）, microprobe（3）, liquid relief ring（4）, AC power（5）, vibration transmission member（1）Upper installation piezoelectric element（2）, mounting surface is piezoelectric element（2）Radiating surface；Vibration transmission member（1）End connect microprobe（3）, microprobe（3）The other end install liquid relief ring（4）；Drive piezoelectric element（2）It is also connected with AC power（5）.Liquid relief precision more higher than cartridge type pipettor may be implemented using the pipetting processes of ultrasound in the utility model.
Description
Technical field
The utility model is related to micro-nano manufacturing fields, more particularly to ultrasonic pipettor.
Background technology
Existing pipettor is a kind of utensil for quantitative transfer liquid, be widely used in the fields such as biology, chemistry and
Clinical diagnostic laboratories, Biotechnology Experiment room, pharmacy and chemical laboratory, environmental laboratory, one kind of food experiment room is often
With tool, existing pipettor specification is generally 0.1 microlitre or more.Nanometer technique rapidly develops in recent years, is used in experiment
Reagent specification be usually nanoliter either picoliters.However, limitation of the existing pipettor due to liquid relief principle, it is difficult to reach and receive
The specification of liter or picoliters.
Therefore, existing pipettor specification cannot meet the requirement of micro-nano experiment, and liquid-taken amount is much larger than needed for experiment
Dosage is tested for convenience, is badly in need of a kind of nanoliter, the pipettor of picoliters specification.
Invention content
The utility model provides ultrasonic pipettor, can control liquid relief amount and reach nanoliter or the specification of picoliters.
In order to achieve the above objectives, the utility model adopts the following technical solution：
Ultrasonic pipettor, including vibration transmission member（1）, piezoelectric element（2）, microprobe（3）, liquid relief ring（4）, alternating current
Source（5）
Vibration transmission member（1）Upper installation piezoelectric element（2）, mounting surface is piezoelectric element（2）Radiating surface；
Vibration transmission member（1）End connect microprobe（3）, microprobe（3）The other end install liquid relief ring（4）, lead to
It crosses liquid relief ring（4）Inside is completely immersed in solution to be pipetted, and captures micro-nano drop, and micro-nano drop is by liquid relief when being taken out from solution
Ring is surrounded into tubular, and microlayer model upper and lower surface is the scope of freedom；
Piezoelectric element（2）It is also connected with AC power（5）, AC power（5）Alternating voltage is generated, piezoelectric element is driven（2）
Vibration is generated, piezoelectric element is passed through（2）Radiating surface make vibration transmission member（1）, microprobe（3）And liquid relief ring（4）Generation is shaken
It is dynamic, smaller when the micro-nano droplet size ratio of capture being made to be not powered on pressure；
The mobile liquid relief ring with capture microlayer model（4）Close to until microlayer model lower surface contact target substrate surface, is opened
Open AC power（5）, discharge micro-nano drop.
Further, liquid relief ring（4）Shape be round, ellipse or rectangle.
Further, liquid relief ring（4）Using nonmetallic or metal material.
Further, liquid relief ring（4）Using carbon fiber, glass fibre or copper fiber material.
Further, vibration transmission member includes vibration transmission part（1）And rod piece（5）.
Using the method for ultrasonic pipettor, include the following steps：
By liquid relief ring（4）It is completely immersed in liquid to be pipetted, makes to wait for that liquid fills up liquid relief ring（4）Afterwards；
By liquid relief ring（4）Liquid is removed to designated position；
AC power（5）Encourage piezoelectric element（2）There is periodic vibration, vibration passes through vibration transmission member（1）It transmits
To liquid relief ring（4）On, liquid relief ring（4）Vibration release drop.
Ultrasound pipettor provided by the utility model, using embedded with piezoelectric element and coupled vibration transmission member
Vibration is generated at some frequencies, is transmitted on liquid relief ring so that pipettor can realize nanoliter or the pipetting function of picoliters specification.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of ultrasonic pipettor.
Wherein, 1- vibrates transmission part, 2- piezoelectric elements, 3- microprobes, 4- liquid reliefs ring, 5- AC powers.
Specific implementation mode
To make those skilled in the art more fully understand the technical solution of the utility model, With reference to embodiment
The utility model is described in further detail.
Ultrasonic pipettor, including vibration transmission part 1, piezoelectric element 2, microprobe 3, liquid relief ring 4, AC power 5, such as scheme
Shown in 1.
Three-dimensional mobile platform aid vibration transmission part 1, vibrates and installs piezoelectric element 2 on transmission part 1, mounting surface is pressure
The radiating surface of electric device 2；The end of vibration transmission member 1 connects microprobe 3, the other end installation liquid relief ring 4 of microprobe 3.
Liquid relief ring 4 is the annulus that 20 microns of copper fibers of diameter surround, which is 100 microns, 4 upper extreme point of liquid relief ring
It is pasted on the circle centre position of the left end of vibration transmission part 1, vibration transmission part 1 is stainless steel, and a diameter of 1.4 millimeters, vibration passes
Defeated component 1 is welded on the radiating surface of piezoelectric element 2, and Langevin energy converter can be used in piezoelectric element 2, can also use piezoelectricity
Piece.Piezoelectric element 2 connects AC power 5, and AC power exports simple alternating current electric signal, and liquid relief ring 4 is in simple alternating current electric signal
Under excitation when driving, due to inverse piezoelectric effect, there is cyclic deformation, liquid relief ring 4 generates forced vibration.
Under 60kHz frequency 30V Voltage Peak peak excitations, the liquid relief ring 4 of vibration is completely immersed in liquid to be pipetted；It waits for
After liquid fills up liquid relief ring 4, liquid relief ring 4 is removed into liquid；Liquid relief ring 4 is moved on into designated position, is vibrated and is discharged using liquid relief ring 4
Drop obtains a diameter of 80 microns of hemispherical drop.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with power
Subject to the protection domain that profit requires.
Claims (5)
1. ultrasonic pipettor, it is characterised in that：Including vibration transmission member（1）, piezoelectric element（2）, microprobe（3）, liquid relief ring
（4）, AC power（5）,
Vibration transmission member（1）Upper installation piezoelectric element（2）, mounting surface is piezoelectric element（2）Radiating surface；
Vibration transmission member（1）End connect microprobe（3）, microprobe（3）The other end install liquid relief ring（4）；
Drive piezoelectric element（2）It is also connected with AC power（5）.
2. ultrasound pipettor according to claim 1, which is characterized in that liquid relief ring（4）Shape be round, ellipse or
Rectangle.
3. ultrasound pipettor according to claim 1, it is characterised in that：Liquid relief ring（4）Using nonmetallic or metal material.
4. ultrasound pipettor according to claim 3, it is characterised in that：Liquid relief ring（4）Using carbon fiber, glass fibre or
Copper fiber material.
5. ultrasound pipettor according to claim 1, it is characterised in that：AC power（5）Output signal be voltage：
1V-200V peak-to-peak values, frequency：20kHz-200kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423987.3U CN207605754U (en) | 2017-10-31 | 2017-10-31 | Ultrasonic pipettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423987.3U CN207605754U (en) | 2017-10-31 | 2017-10-31 | Ultrasonic pipettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207605754U true CN207605754U (en) | 2018-07-13 |
Family
ID=62794670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721423987.3U Expired - Fee Related CN207605754U (en) | 2017-10-31 | 2017-10-31 | Ultrasonic pipettor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207605754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754963A (en) * | 2017-10-31 | 2018-03-06 | 南京航空航天大学 | Ultrasonic pipettor |
-
2017
- 2017-10-31 CN CN201721423987.3U patent/CN207605754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754963A (en) * | 2017-10-31 | 2018-03-06 | 南京航空航天大学 | Ultrasonic pipettor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20211031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |