CN109550529A - A kind of segmented filtering sample-injection tip - Google Patents
A kind of segmented filtering sample-injection tip Download PDFInfo
- Publication number
- CN109550529A CN109550529A CN201811613207.0A CN201811613207A CN109550529A CN 109550529 A CN109550529 A CN 109550529A CN 201811613207 A CN201811613207 A CN 201811613207A CN 109550529 A CN109550529 A CN 109550529A
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- CN
- China
- Prior art keywords
- sample
- strainer
- segmented
- injection tip
- cavity
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000001914 filtration Methods 0.000 title abstract description 14
- 235000005121 Sorbus torminalis Nutrition 0.000 claims description 4
- 244000152100 Sorbus torminalis Species 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 19
- 239000012535 impurity Substances 0.000 abstract description 15
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 9
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002965 ELISA Methods 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/56—Labware specially adapted for transferring fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/014—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with curved filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0681—Filter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Sampling And Sample Adjustment (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of segmenteds to filter sample-injection tip, it is in approximately conical sample-adding pipe including outside, it is the cavity of a connection inside the sample-adding pipe, it is characterized in that, the cavity and the sample-adding pipe are coaxially disposed, the cavity is distributed in multisection type ladder, the intracavity diameter of the cavity is gradually reduced from top to bottom, strainer is provided at each ladder, the strainer is arranged on the step of ladder, and the mesh aperture of multiple strainers is gradually reduced from top to bottom.Strainer is arranged in existing sample-injection tip in the present invention, realize the abundant filtering to micro-amounts of liquids sample, prevent there is condensation clot or impurity in the trace sample liquid for distributing or shifting, and the mesh aperture of the multiple strainers of setting is gradually reduced from top to bottom, and the clogging of single strainer is prevented while further promoting filter effect.
Description
Technical field
The present invention relates to dropping liquid consumptive material fields, and in particular to a kind of segmented filtering sample-injection tip.
Background technique
Sample-injection tip is mainly used for distribution and transfer to various micro-amounts of liquids samples, convenient using sample-injection tip, clean, can keep away
Exempt from fork traction pollution, it is ensured that the accuracy and credibility of experimental result.It gradually replaces at present and is widely used in clinical examination, system
Medicine, life science, animals and plants inspection and quarantine research etc. are clinically usually used in handling the test of serology ELISA Plate and blood group
The sample-adding work of experiment, such as blood station, hospital, public security system, Molecular Biology Lab mating can be used for automatic enzyme immune work
It stands, in full-automatic sample adding system, the distribution that sample is sampled or is loaded.
Because sample-injection tip is to continue to distribute to the material liquid of blood sample or pharmacy and shift, blood during transfer
There may be the clot of condensation in sample, the impurity that there can be bulky grain is also possible in the material liquid of pharmacy, thus not
Conducive to the distribution and transfer of body trace sample, distribution and transfer of the strainer in various micro-amounts of liquids samples need to set in this way
Sample liquid is filtered in the process.
But the effect of filtering can not be played, such as if the mesh aperture of setting strainer is excessive during the filtration process
The too small impurity in mesh aperture of fruit setting strainer will block the mesh aperture of strainer, be unfavorable for the distribution of micro-amounts of liquids sample
And transfer.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of segmented filter sample-injection tip, can to micro-amounts of liquids sample into
Row adequately filtering, and not will lead to filter net jam.
In order to solve the above-mentioned technical problems, the present invention provides a kind of segmenteds to filter sample-injection tip, including external in approximation
The sample-adding pipe of cone, sample-adding pipe inside are the cavity of a connection, and the cavity and the sample-adding pipe are coaxially disposed, described
Cavity is distributed in multisection type ladder, and the intracavity diameter of the cavity is gradually reduced from top to bottom, and filter is provided at each ladder
Net, the strainer are arranged on the step of ladder, and the mesh aperture of multiple strainers is gradually reduced from top to bottom.
It further comprise that the cavity is distributed in the ladder of three-stage, by the chamber in a preferred embodiment of the present invention
Body is divided into three inner cavities and three stair-steps, be disposed on stair-step from top to bottom low-density coarse strainer, in
Density strainer, high density finer mesh, the low-density coarse strainer, middle density strainer and high density finer mesh are round filter
Net, the inner cavity of the diameter of the low-density coarse strainer, middle density strainer and high density finer mesh and each stair-step
Diameter matches.
In a preferred embodiment of the present invention, further comprise the low-density coarse strainer strainer mesh diameter be 3~
8um。
In a preferred embodiment of the present invention, further comprise the middle density strainer strainer mesh diameter be 0.5~
3um。
In a preferred embodiment of the present invention, further comprise the high density finer mesh mesh diameter be 0.1~
0.5um。
It further comprise that the filter cloth edge is placed on the step of the ladder in a preferred embodiment of the present invention,
The middle part of the strainer is downwardly projected setting in " water droplet " shape.
It further comprise the wavy or V-shape of the strainer itself in a preferred embodiment of the present invention.
It further comprise being provided with to match with loading device at the top of the sample-adding pipe in a preferred embodiment of the present invention
Port.
It further comprise that a plurality of anti-skid chequer is provided on the outer wall at the port in a preferred embodiment of the present invention.
It further comprise that the bottom of the sample-adding pipe is provided with along sample-adding pipe extended line in a preferred embodiment of the present invention
The sample-adding tip of direction setting.
Beneficial effects of the present invention:
One, because sample-injection tip be the material liquid of blood sample or pharmacy is continued distribute and shift, in the process of transfer
There may be the clot of condensation in middle blood sample, the impurity that there can be bulky grain is also possible in the material liquid of pharmacy, this
Sample is just unfavorable for the distribution and transfer of body trace sample, so need to set strainer various micro-amounts of liquids samples distribution and
Sample liquid is filtered during transfer, strainer is arranged in the present invention in existing sample-injection tip, realizes to micro-amounts of liquids
The abundant filtering of sample prevents there is condensation clot or impurity in the trace sample liquid for distributing or shifting.
Secondly, be provided with segmented cavity, strainer is separately provided in each cavity, is arranged in the cavity so multiple
Strainer, and the mesh aperture that multiple strainers are arranged is gradually reduced from top to bottom, the multiple strainers being arranged in this way can be avoided setting
The mesh aperture of single strainer is excessive, can not play the effect of filtering, or the mesh aperture of the single strainer of setting is too small, impurity
The mesh aperture that strainer will be blocked, the problem of being unfavorable for the distribution and transfer of micro-amounts of liquids sample generation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of strainer of the invention.
Figure label explanation: 1, sample-adding pipe；2, cavity；3, stair-step；4, strainer；41, low-density coarse strainer；42, in
Density strainer；43, high density finer mesh；5, port；51, anti-skid chequer；6, it is loaded tip.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Shown in referring to Fig.1, an embodiment of segmented filtering sample-injection tip of the invention, including outside in approximately conical
It is loaded pipe 1,1 processing technology of sample-adding pipe is integrally formed, and is the cavity 2 of a connection, the cavity 2 inside the sample-adding pipe 1
With the sample-adding pipe 1 be coaxially disposed, the cavity 2 in multisection type ladder distribution, the intracavity diameter of the cavity 2 from top to bottom by
It is decrescence small, strainer 4 is provided at each ladder, the strainer 4 is arranged on stair-step 5, the mesh of multiple strainers 4
Aperture is gradually reduced from top to bottom.
In the present embodiment, the cavity 2 is distributed in the ladder of three-stage, and the cavity 2 is divided for three inner cavities and three
A stair-step is disposed with low-density coarse strainer 41, middle density strainer 42, highly dense on stair-step 3 from top to bottom
Finer mesh 43 is spent, the low-density coarse strainer 41, middle density strainer 42 and high density finer mesh 43 are circular filter screen, described
The inner cavity of the diameter of low-density coarse strainer 41, middle density strainer 42 and high density finer mesh 43 and each stair-step 3
Diameter matches.
Wherein, the strainer mesh diameter of the low-density coarse strainer 41 is 3~8um, the strainer net of the middle density strainer
42 diameters of eye are 0.5~3um, and the mesh diameter of the high density finer mesh 43 is 0.1~0.5um, and material is thus formed three
The filter structure of layer, and the mesh diameter of every layer of strainer 4 is different, for filtering out different size of impurity respectively, divides three in this way
The beneficial effect of layer filtering is:
1, impurity of the diameter greater than 3~8um is obstructed by the low-density coarse strainer 41 of top layer, effectively prevent large granular impurity
Into the middle density strainer 42 of lower layer, by middle 42 clogging of density strainer；
2, impurity of the diameter greater than 0.5~3um passes through the low-density coarse strainer 41 of top layer, by intermediate middle density strainer
42 barriers, in this way impurity of a part less than 3um pass through low-density coarse strainer 41, not will cause top layer's low-density coarse strainer 41
In impurity it is excessive, while the impurity greater than 0.5um being effectively prevent to enter undermost high density finer mesh 43, will be most lower
43 clogging of high density finer mesh of layer, intermediate middle density strainer 42 primarily serve transitional function.
3, impurity of the diameter greater than 0.1~0.5um is obstructed by undermost high density finer mesh 43, due to first two layers filter
The barrier action of net 4, the impurity greater than 0.5um are blocked, and the mesh that not will lead to high density finer mesh 43 in this way will not
It is blocked.
Referring to shown in Fig. 2,4 edge of strainer is placed on the stair-step 3, and the middle part of the strainer 4 is in " water
Shape is downwardly projected setting to drop ", is in this way in that " water droplet " shape is downwardly projected setting, and liquid can be from the strainer 4 from two side of step to centre
Flowing, prevents liquid from remaining on stair-step 3.
Itself wavy or V-shape of the strainer 4, further increases 4 area of strainer, to improve in this way
Filter effect.
Specifically, the top of the sample-adding pipe 1 is provided with is inserted in loading device appropriate ports 5, the loading device
Outside port 5, it is provided with a plurality of anti-skid chequer 51 on the outer wall at the port 5, adds when loading device being prevented to be loaded with described
Sample pipe 1 separates.
Specifically, the bottom of the sample-adding pipe 1 is provided with the sample-adding tip 6 extended along sample-adding 1 extended line direction of pipe,
By being loaded the setting of tip 6, sample-adding precision is improved.
In other embodiments, according to different filtration needs, more stair-steps 3 can be set in the lumen,
It can be in the strainer of other specifications, to complete the demand of filtering.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of segmented filters sample-injection tip, it is in approximately conical sample-adding pipe including outside, connects inside the sample-adding pipe for one
Logical cavity, which is characterized in that the cavity and the sample-adding pipe are coaxially disposed, and the cavity is distributed in multisection type ladder, institute
The intracavity diameter for stating cavity is gradually reduced from top to bottom, and strainer is provided at each ladder, and ladder is arranged in the strainer
On step, the mesh aperture of multiple strainers is gradually reduced from top to bottom.
2. segmented as described in claim 1 filters sample-injection tip, which is characterized in that the cavity divides in the ladder of three-stage
The cavity is divided into three inner cavities and three stair-steps, is disposed on stair-step from top to bottom low close by cloth
Coarse strainer, middle density strainer, high density finer mesh are spent, the low-density coarse strainer, middle density strainer and high density are finely filtered
Net is circular filter screen, the diameter of the low-density coarse strainer, middle density strainer and high density finer mesh and each ladder
The intracavity diameter of step matches.
3. segmented as claimed in claim 2 filters sample-injection tip, which is characterized in that the strainer mesh of the low-density coarse strainer
Diameter is 3~8um.
4. segmented as claimed in claim 2 filters sample-injection tip, which is characterized in that the strainer mesh of the middle density strainer is straight
Diameter is 0.5~3um.
5. segmented as claimed in claim 2 filters sample-injection tip, which is characterized in that the mesh of the high density finer mesh is straight
Diameter is 0.1~0.5um.
6. segmented as described in claim 1 filters sample-injection tip, which is characterized in that the filter cloth edge is placed on the ladder
Step on, the middle part of the strainer is downwardly projected setting in " water droplet " shape.
7. segmented as described in claim 1 filters sample-injection tip, which is characterized in that the wavy or V of the strainer itself
Font.
8. segmented as described in claim 1 filters sample-injection tip, which is characterized in that be provided with and add at the top of the sample-adding pipe
Sample equipment appropriate ports.
9. segmented as claimed in claim 8 filters sample-injection tip, which is characterized in that be provided on the outer wall at the port more
Anti-skid chequer.
10. segmented as described in claim 1 filters sample-injection tip, which is characterized in that the bottom of the sample-adding pipe is provided with edge
It is loaded the sample-adding tip of pipe extended line direction setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613207.0A CN109550529A (en) | 2018-12-27 | 2018-12-27 | A kind of segmented filtering sample-injection tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613207.0A CN109550529A (en) | 2018-12-27 | 2018-12-27 | A kind of segmented filtering sample-injection tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109550529A true CN109550529A (en) | 2019-04-02 |
Family
ID=65871374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811613207.0A Pending CN109550529A (en) | 2018-12-27 | 2018-12-27 | A kind of segmented filtering sample-injection tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109550529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828036A (en) * | 2021-07-27 | 2021-12-24 | 汉特节能系统(昆山)有限公司 | Emulsion collecting device for die casting machine and using method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120076708A1 (en) * | 2008-02-29 | 2012-03-29 | General Polymeric Corporation | Porous sealing material |
| CN202237480U (en) * | 2011-10-01 | 2012-05-30 | 别海文 | Cell washer for examination |
| CN202983705U (en) * | 2012-11-06 | 2013-06-12 | 无锡耐思生物科技有限公司 | Pipette gun head structure with filter element |
| CN203030064U (en) * | 2012-12-12 | 2013-07-03 | 臧金凤 | Examination filter |
| CN204746353U (en) * | 2015-06-30 | 2015-11-11 | 于灏 | Centrifuging tube |
| CN205216872U (en) * | 2015-12-18 | 2016-05-11 | 北京雷根生物技术有限公司 | Graphite alkene filters formula micropipettor suction head |
| CN106536056A (en) * | 2014-06-13 | 2017-03-22 | 儿童医学中心公司 | Products and methods to isolate mitochondria |
-
2018
- 2018-12-27 CN CN201811613207.0A patent/CN109550529A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120076708A1 (en) * | 2008-02-29 | 2012-03-29 | General Polymeric Corporation | Porous sealing material |
| CN202237480U (en) * | 2011-10-01 | 2012-05-30 | 别海文 | Cell washer for examination |
| CN202983705U (en) * | 2012-11-06 | 2013-06-12 | 无锡耐思生物科技有限公司 | Pipette gun head structure with filter element |
| CN203030064U (en) * | 2012-12-12 | 2013-07-03 | 臧金凤 | Examination filter |
| CN106536056A (en) * | 2014-06-13 | 2017-03-22 | 儿童医学中心公司 | Products and methods to isolate mitochondria |
| CN204746353U (en) * | 2015-06-30 | 2015-11-11 | 于灏 | Centrifuging tube |
| CN205216872U (en) * | 2015-12-18 | 2016-05-11 | 北京雷根生物技术有限公司 | Graphite alkene filters formula micropipettor suction head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828036A (en) * | 2021-07-27 | 2021-12-24 | 汉特节能系统(昆山)有限公司 | Emulsion collecting device for die casting machine and using method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190402 |