CN109321443A - Liquid-transfering device for expectoration acquisition - Google Patents
Liquid-transfering device for expectoration acquisition Download PDFInfo
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- CN109321443A CN109321443A CN201811271678.8A CN201811271678A CN109321443A CN 109321443 A CN109321443 A CN 109321443A CN 201811271678 A CN201811271678 A CN 201811271678A CN 109321443 A CN109321443 A CN 109321443A
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/04—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles
- C12M33/07—Dosage or metering devices therefore
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Abstract
The present invention relates to the field of medical instrument technology, more particularly to a kind of liquid-transfering device for expectoration acquisition, including gun body and pipette tips, pipette tips are detachably connected with gun body by the cooperation of annular protrusion and annular groove, pipette tips are equipped with sap cavity, the bottom of pipette tips is equipped with the first elastic slice of one-way conduction, sap cavity offers side opening, the oral area of side opening is equipped with the second elastic slice of one-way conduction, the liquid levels first through hole below in sap cavity is also provided in sap cavity, the oral area of first through hole is equipped with the third elastic slice of one-way conduction, gun body is equipped with the cavity of connection sap cavity, cavity slidably connects sliding block, the annular air cavity of connection first through hole is additionally provided in gun body, annular air cavity slidably connects ring slider, the fourth hole of connection annular air cavity and cavity is offered in gun body, the oral area of fourth hole is equipped with the 4th elastic slice of one-way conduction, using this Scheme can carry out fluid infusion, and sputum specimen is once discharged in the case where sputum specimen one acquisition is inadequate.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of liquid-transfering device for expectoration acquisition.
Background technique
Quantity, virulence and the organism immune response and allergy state of the tulase of phthisical clinical manifestation and infection
Related, tuberculosis mattress is found in phlegm inspection or Sputum culturing is positive and fiberoptic bronchoscopy discovery Tuberculous change is diagnosis pulmonary tuberculosis
Reliable basis.When carrying out phlegm inspection to tuberculosis patient, to avoid direct contact with the infection for causing disease, reviewer need to lead to
It crosses liquid-transfering device and pipettes sputum specimen, carry out relevant checked operation.
Existing liquid-transfering device includes gun body and pipette tips, and gun body is used multiple times, and is not connect in use with sputum specimen
Touching, avoids pollution next sputum specimen；Pipette tips be it is disposable, be removably installed in gun body, pipette tips and rifle
Good airproof performance between body avoids that weeping occurs in pipetting processes.
The existing liquid-transfering device for phlegm inspection makes pipette tips draw sputum specimen, draws phlegm by the button in pressing gun body
The dosage of sample is fixed, if the dosage once drawn is inadequate, the sputum specimen in pipette tips first need to be discharged, then draw second of phlegm mark
This, operating process trouble cannot draw the sputum specimen of sufficient dosage, and be once discharged.
Secondly, the sputum specimen repeatedly drawn is drawn from different location, and although same sputum specimen, different positions
There may be othernesses between setting, and influence inspection result, if mixed by reviewer, may make in mixed process
Sputum specimen drippage generates aerosol, pollutes to test atmosphere and reviewer, there are pathophorous risk, while phlegm
Exposure duration is too long in air for sample, may be subjected to the pollution of other substances, influences inspection result.
Summary of the invention
Technical problem solved by the invention is to provide a kind of liquid-transfering device for expectoration acquisition, can be in sputum specimen
In the case that one acquisition is inadequate, fluid infusion is carried out, and sputum specimen is once discharged.
Base case provided by the invention: it for the liquid-transfering device of expectoration acquisition, including gun body and pipette tips, is equipped in pipette tips
Sap cavity, sap cavity are used to store the liquid drawn from pipette tips bottom, and the bottom of pipette tips is equipped with the first elastic slice, and the first elastic slice is for controlling
The one-way conduction of sap cavity, the bottom of pipette tips offer side opening, and side opening is located at the mouth in sap cavity for being connected to external and sap cavity, side opening
Portion is equipped with the second elastic slice, and the second elastic slice is used to control the one-way conduction of side opening, and sap cavity is also provided with first through hole, first through hole position
It is equipped with third elastic slice in the oral area of sap cavity, third elastic slice is used to control the one-way conduction of first through hole；
Gun body offers the second through-hole for being connected to sap cavity, and sliding block, one end of sliding block are slidably connected in the second through-hole
Equipped with elastic component, the other end of sliding block is equipped with the first push rod that can stretch out the second through-hole, there is cavity between sliding block and sap cavity, empty
It is intracavitary equipped with the annular fixture block to offset with elastic component；
Gun body is also provided with the annular blind hole of inner wall smooth, and it is sliding that the smooth annular of circumferential surface is slidably connected in annular blind hole
Block, ring slider are equipped with the second push rod that can stretch out annular blind hole, have ring between ring slider and the bottom of annular blind hole
Shape air cavity, the bottom of annular air cavity offer the third through-hole for being connected to first through hole；
Gun body is also provided with fourth hole, and fourth hole is located at annular for being connected to annular air cavity and cavity, fourth hole
The oral area of air cavity is equipped with the 4th elastic slice, and the 4th elastic slice is used to control the one-way conduction of fourth hole；The hardness of second elastic slice is less than
The hardness of third elastic slice, the hardness of the hardness of the 4th elastic slice less than the first elastic slice.
The principle of the present invention and advantage are: due to slidably connecting sliding block in the second through-hole, having between sliding block and sap cavity
Cavity pushes the first push rod to make sliding block slide downward, the gas in compaction cavum, the 4th elastic slice of gas extrusion in cavity and
First elastic slice, since the hardness of the 4th elastic slice is less than the hardness of the first elastic slice, the 4th elastic slice is first opened, so that fourth hole
One-way conduction, gas enter annular air cavity, and due to the inner wall smooth of annular blind hole, and the circumferential surface of ring slider is smooth, in gas
Promotion under, the bottom of pipette tips is placed in phlegm until sliding block cannot move down by ring slider upward sliding in annular blind hole
In sample, the first push rod is slowly unclamped, under the action of the elastic member, sliding block upward sliding, the cavity and sap cavity of connection are interior to be generated
Negative pressure, since the hardness of the second elastic slice is less than the hardness of third elastic slice, the second elastic slice is first opened, so that side opening is unidirectionally led
It is logical, it draws in sputum specimen to sap cavity, if the dosage for once drawing sputum specimen is inadequate, the bottom of pipette tips is removed from sputum specimen,
The operation for repeating above-mentioned absorption sputum specimen carries out fluid infusion to sputum specimen, sputum specimen is stored in sap cavity, enough until acquiring
Sputum specimen, then the first push rod and the second push rod are pushed simultaneously, so that the gas in cavity and annular air cavity is compressed, annular gas
Intracavitary gas extrusion third elastic slice, so that third through-hole one-way conduction, the gas in annular air cavity enters sap cavity, in cavity
Gas squeeze the first elastic slice jointly so that sap cavity one-way conduction, the sputum specimen in sap cavity can once be arranged from the bottom of pipette tips
Out, by repeating to draw the operation of sputum specimen fluid infusion can be carried out, passes through first in the case where sputum specimen one acquisition is inadequate
Sputum specimen once can be discharged for push rod and the second push rod.
Further, the top of pipette tips is equipped with the annular protrusion engaged with gun body, and annular protrusion is made of flexible material, rifle
The top of head offers the first groove, and the first groove is located at one end of the sap cavity；The bottom of gun body offers annular groove, annular
The bottom of slot offers the annular groove being used cooperatively with annular protrusion.
Since the top of pipette tips is equipped with the annular protrusion engaged with gun body, the bottom of annular groove is offered matches with annular protrusion
The annular groove used is closed to be aligned at the top of pipette tips with the bottom of gun body, and squeeze, so that convex annular in use
It rises and is caught in annular groove, in disassembly, extract pipette tips outward, since annular protrusion is made of flexible material, annular protrusion
It can be disengaged with annular groove, so that pipette tips and gun body be made to disengage, realize the purpose of disassembly pipette tips, by replacing pipette tips, to avoid
The infection of disease.
Further, the second groove is offered on the side wall of gun body, the side wall of the second groove is connected to annular groove, in the second groove
The wedge block that can stretch out the second groove is slidably connected, inclined-plane and the annular protrusion of wedge block offset, and wedge block is for making ring
Shape protrusion and annular groove disengage.
The wedge block that the second groove can be stretched out due to slidably connecting in the second groove is pushed to the bottom of the second groove
Wedge block, wedge block slide in the second groove, since inclined-plane and the annular protrusion of wedge block offset, in wedge block sliding process
Annular protrusion and annular groove are disengaged, by pushing wedge block to disengage pipette tips and gun body, easily operated, pipette tips replacement side
Just.
Further, the first push rod is equipped with the first briquetting, the one end of the second push rod far from ring slider far from one end of sliding block
It equipped with the second briquetting, offsets at the top of the second briquetting and gun body, one end that wedge block stretches out the second groove is equipped with third briquetting.
Finger force is convenient in the setting of first briquetting, the second briquetting and third briquetting, easy to operate；Due to the second briquetting
It offsets at the top of gun body, the second briquetting can prevent ring slider from falling, and the height energy risen by the second briquetting
Understand the dosage of the sputum specimen stored in sap cavity.
Further, return unit is equipped between third briquetting and the side wall of gun body.
By pressing third briquetting, pipette tips and gun body are disengaged, achieve the purpose that dismantle pipette tips, return unit makes third pressure
Block reset, next pipette tips easy to disassemble.
Further, first through hole is located at the liquid level of liquid intracavity liquid or less.
When sputum specimen is discharged, the gas in annular air cavity can enter sap cavity by third through-hole and first through hole, due to
First through hole is located at the liquid level of liquid intracavity liquid hereinafter, after gas entrance, and the sputum specimen in sap cavity is uniformly mixed.
Further, gun body is equipped with graduation mark.
It is able to know that the dosage for the sputum specimen drawn in sap cavity by graduation mark, is convenient for checked operation.
Detailed description of the invention
Fig. 1 is cross-sectional view of the present invention for the liquid-transfering device embodiment of expectoration acquisition.
Fig. 2 is cross-sectional view of the present invention for the liquid-transfering device embodiment pipette tips of expectoration acquisition.
Fig. 3 is A portion enlarged diagram of the present invention for liquid-transfering device Fig. 2 of expectoration acquisition.
Fig. 4 is cross-sectional view of the present invention for the liquid-transfering device embodiment gun body of expectoration acquisition.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: gun body 1, pipette tips 2, annular protrusion 3, the first groove 4, sap cavity 5, first
Elastic slice 501, third elastic slice 503, side opening 504, first through hole 505, the second through-hole 6, the first briquetting 601, is slided second elastic slice 502
Block 602, cavity 603, annular fixture block 604, annular blind hole 7, ring slider 701, the second briquetting 702, annular air cavity 703, third
Through-hole 704, fourth hole 8, the 4th elastic slice 804, annular groove 9, the second groove 10, wedge block 101, third briquetting 103.
Embodiment
As shown in Fig. 1, the liquid-transfering device for expectoration acquisition, including gun body 1 and pipette tips 2, as shown in Fig. 2, pipette tips 2
Top be equipped with the annular protrusion 3 that engage with gun body 1, the use flexible material of annular protrusion 3 is made；The top of pipette tips 2 offers
First groove 4, the first groove 4 are open towards the top perpendicular to pipette tips 2；The bottom of first groove 4 offers sap cavity 5, liquid
Chamber 5 is used to store the sputum specimen drawn from 2 bottom of pipette tips, and as shown in Fig. 3, the bottom of pipette tips 2 is equipped with the first elastic slice 501, the
One elastic slice 501 makes sputum specimen that can only flow to outside from sap cavity 5；The bottom of pipette tips 2 offers side opening 504, and side opening 504 is located at sap cavity
Oral area in 5 is equipped with the second elastic slice 502, and the second elastic slice 502 makes sputum specimen that can only flow into sap cavity 5 from outside；Sap cavity 5 is also provided with
First through hole 505, first through hole 505 is located at the liquid level of sputum specimen in sap cavity 5 hereinafter, first through hole 505 is located at the mouth in sap cavity 5
Portion is equipped with the third elastic slice 503 for making gas from the inflow sap cavity 5 of third through-hole 704.
As shown in Fig. 4, gun body 1 offers the second through-hole 6 for being connected to sap cavity 5, and the second through-hole 6 passes through gun body 1 simultaneously
In the axial direction of gun body 1；Sliding block 602 is slidably connected in second through-hole 6, one end of sliding block 602 is bonded with elastic component, this reality
Applying elastic component in example is preferably tension spring, and the other end of sliding block 602 is bonded with the first push rod that can stretch out the second through-hole 6, and first
Push rod is bonded with the first briquetting 601 far from one end of sliding block 602；There are cavity 603, cavity between sliding block 602 and the bottom of gun body 1
The annular fixture block 604 to offset with elastic component is equipped in 603.
Gun body 1 is also provided with the annular blind hole 7 of inner wall smooth, and the smooth annular of circumferential surface is slidably connected in annular blind hole 7
Sliding block 701；The second push rod that can stretch out annular blind hole 7 is bonded on ring slider 701, the second push rod is far from ring slider
701 one end is bonded with the second briquetting 702, and the second briquetting 702 and the top of gun body 1 offset；Ring slider 701 and annular blind hole
There is annular air cavity 703 between 7 bottom, the bottom of annular air cavity 703 offers the third through-hole for being connected to first through hole 505
704；Gun body 1 is also provided with fourth hole 8, and fourth hole 8 is for being connected to annular air cavity 703 and cavity 603, and fourth hole 8
It is equipped with the 4th elastic slice 804 in the oral area in annular air cavity 703, the 4th elastic slice 804 makes gas that can only flow into annular gas from cavity 603
Chamber 703.
The bottom of gun body 1 offers annular groove, and it is recessed that the bottom of annular groove offers the annular being used cooperatively with annular protrusion 3
Slot 9；The second groove 10 is offered on the side wall of gun body 1, the second groove 10 passes through annular blind hole 7 and is not connected to annular blind hole 7,
The side wall of second groove 10 is connected to annular groove, slidably connects the wedge block that can stretch out the second groove 10 in the second groove 10
101, inclined-plane and the annular protrusion 3 of wedge block 101 offset, and wedge block 101 is for disengaging annular protrusion 3 and annular groove 9, wedge
One end that shape block 101 is located at outside gun body 1 is bonded with third briquetting 103, is equipped between third briquetting 103 and the side wall of gun body 1 multiple
Position part, return unit is preferably tension spring in the present embodiment；Graduation mark is additionally provided in gun body 1.
The hardness of second elastic slice 502 is less than the hardness of third elastic slice 503, and under the effect of identical power, the second elastic slice 502 is first
It opens；The hardness of 4th elastic slice 804 is less than the hardness of the first elastic slice 501, and under the effect of identical power, the 4th elastic slice 804 is first beaten
It opens.
Specific implementation process is as follows:
Before use, pipette tips 2 and gun body 1 need to be installed, first the bottom of gun body 1 is aligned with the top of pipette tips 2, and squeeze gun body
1 with pipette tips 2 so that annular protrusion 3 is caught in annular groove 9, pipette tips 2 are installed in gun body 1.
In use, the first briquetting 601 of pressing, makes the slide downward in the second through-hole 6 of sliding block 602, the gas in cavity 603
The 4th elastic slice 804 is squeezed, so that 804 one-way conduction of the 4th elastic slice, the gas in cavity 603 flows to annular by fourth hole 8
Air cavity 703；Due to the inner wall smooth of annular blind hole 7, and the circumferential surface of ring slider 701 is smooth, and under the promotion of gas, annular is sliding
The upward sliding in annular blind hole 7 of block 701, until sliding block 602 cannot slide still further below, the elastic potential energy of elastic component reaches at this time
It is maximum；The bottom of pipette tips 2 is placed in sputum specimen, the first briquetting 601 is slowly unclamped, under the elastic force effect of elastic component, sliding block
602 upward slidings, the cavity 603 and sap cavity 5 of connection generate negative pressure, so that 502 one-way conduction of the second elastic slice, by sputum specimen from rifle
First 2 side opening 504 is drawn into sap cavity 5, and the acquisition of sputum specimen is completed.
If the sputum specimen dosage of acquisition is inadequate, the first briquetting 601 is pressed again, since the hardness of the 4th elastic slice 804 is less than
The hardness of first elastic slice 501, under the effect of identical power, the 4th elastic slice 804 is first opened, and the first elastic slice 501 will not be opened, so
The first briquetting 601 is slowly unclamped afterwards, fluid infusion is carried out to sputum specimen in sap cavity 5, the inspection dosage until reaching needs；If acquisition
Sputum specimen dosage is enough, and the bottom of pipette tips 2 is placed in culture dish, while pressing the first briquetting 601 and the second briquetting 702,
Sliding block 602 and 701 slide downward of ring slider, the gas extrusion third elastic slice 503 in annular air cavity 703, so that third elastic slice
503 one-way conductions, the gas in annular air cavity 703 flow into sap cavity 5, cavity 603 by third through-hole 704 and first through hole 505
Sputum specimen in interior gas extrusion sap cavity 5, so that the first elastic slice 501 is squeezed, so that 501 one-way conduction of the first elastic slice, sap cavity 5
Interior sputum specimen flows into culture dish from the bottom of pipette tips 2, completes the discharge of sputum specimen.
After use, pipette tips 2 are needed to change, third briquetting 103 is pressed, slides wedge block 101 in the second groove 10, due to
The inclined-plane of wedge block 101 offsets with annular protrusion 3, and annular protrusion 3 is made of flexible material, and wedge block 101 makes annular
Protrusion 3 is disengaged with annular groove 9, so that pipette tips 2 be made to separate with gun body 1, under the action of return unit, third briquetting 103 resets,
In next needs in use, new pipette tips 2 is taken to be installed in gun body 1, the acquisition of sputum specimen is carried out.
The above are merely the embodiment of the present invention, the common sense such as well known specific structure and characteristic are not made excessively herein in scheme
Description, all common of technical field that the present invention belongs to before one skilled in the art know the applying date or priority date
Technological know-how can know the prior art all in the field, and have using routine experiment means before the date
Ability, one skilled in the art can improve in conjunction with self-ability under the enlightenment that the application provides and implement we
Case, some typical known features or known method should not become the barrier that one skilled in the art implement the application
Hinder.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, if can also make
Dry modification and improvement, these also should be considered as protection scope of the present invention, these all will not influence the effect that the present invention is implemented and
Patent practicability.The scope of protection required by this application should be based on the content of the claims, the specific reality in specification
Applying the records such as mode can be used for explaining the content of claim.
Claims (7)
1. for the liquid-transfering device of expectoration acquisition, including gun body and pipette tips, the pipette tips are interior to be equipped with sap cavity, and the sap cavity is for depositing
Store up the liquid drawn from pipette tips bottom, it is characterised in that: the bottom of the pipette tips is equipped with the first elastic slice, and first elastic slice is used for
The one-way conduction of sap cavity is controlled, the bottom of the pipette tips offers side opening, and the side opening is for being connected to external and sap cavity, the side
Hole is located at the oral area in sap cavity equipped with the second elastic slice, and second elastic slice is used to control the one-way conduction of side opening, and the sap cavity is also
Offer first through hole, the oral area that the first through hole is located at sap cavity is equipped with third elastic slice, and the third elastic slice is for controlling the
The one-way conduction of one through-hole；
The gun body offers the second through-hole for being connected to sap cavity, and sliding block, the cunning are slidably connected in second through-hole
One end of block is equipped with elastic component, and the other end of the sliding block is equipped with the first push rod that can stretch out the second through-hole, the sliding block with
There is cavity between sap cavity, is equipped with the annular fixture block to offset with elastic component in the cavity；
The gun body is also provided with the annular blind hole of inner wall smooth, slidably connects the smooth annular of circumferential surface in the annular blind hole
Sliding block, the ring slider are equipped with the second push rod that can stretch out annular blind hole, the bottom of the ring slider and annular blind hole
There is annular air cavity between portion, the bottom of the annular air cavity offers the third through-hole for being connected to first through hole；
The gun body is also provided with fourth hole, and the fourth hole is for being connected to annular air cavity and cavity, the fourth hole
It is equipped with the 4th elastic slice positioned at the oral area of annular air cavity, the 4th elastic slice is used to control the one-way conduction of fourth hole；Described
The hardness of two elastic slices is less than the hardness of third elastic slice, the hardness of the hardness of the 4th elastic slice less than the first elastic slice.
2. the liquid-transfering device according to claim 1 for expectoration acquisition, it is characterised in that: the top of the pipette tips is equipped with
The annular protrusion engaged with gun body, the annular protrusion are made of flexible material, and it is recessed to offer first at the top of the pipette tips
Slot, first groove are located at one end of the sap cavity；The bottom of the gun body offers annular groove, the bottom of the annular groove
Offer the annular groove being used cooperatively with annular protrusion.
3. the liquid-transfering device according to claim 2 for expectoration acquisition, it is characterised in that: opened on the side wall of the gun body
Equipped with the second groove, the side wall of second groove is connected to annular groove, and the can be stretched out by slidably connecting in second groove
The wedge block of two grooves, inclined-plane and the annular protrusion of the wedge block offset, and the wedge block is for making annular protrusion and annular
Groove disengages.
4. according to the described in any item liquid-transfering devices for expectoration acquisition of Claims 2 or 3, it is characterised in that: described first
Push rod is equipped with the first briquetting far from one end of sliding block, and second push rod is equipped with the second briquetting, institute far from one end of ring slider
It states and offsets at the top of the second briquetting and gun body, one end that the wedge block stretches out the second groove is equipped with third briquetting.
5. the liquid-transfering device according to claim 4 for expectoration acquisition, it is characterised in that: the third briquetting and gun body
Side wall between be equipped with return unit.
6. the liquid-transfering device according to claim 1 for expectoration acquisition, it is characterised in that: the first through hole is located at liquid
Below the liquid level of intracavity liquid.
7. the liquid-transfering device according to claim 1 for expectoration acquisition, it is characterised in that: the gun body is equipped with scale
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271678.8A CN109321443B (en) | 2018-10-29 | 2018-10-29 | Liquid transfer device for expectoration collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271678.8A CN109321443B (en) | 2018-10-29 | 2018-10-29 | Liquid transfer device for expectoration collection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109321443A true CN109321443A (en) | 2019-02-12 |
| CN109321443B CN109321443B (en) | 2021-06-29 |
Family
ID=65259886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811271678.8A Active CN109321443B (en) | 2018-10-29 | 2018-10-29 | Liquid transfer device for expectoration collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109321443B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933048A (en) * | 1974-02-12 | 1976-01-20 | Medical Laboratory Automation, Inc. | Pipettes |
| US4164870A (en) * | 1978-04-10 | 1979-08-21 | Medical Laboratory Automation, Inc. | Pipettes |
| CN203329751U (en) * | 2013-06-07 | 2013-12-11 | 顾艳宏 | Rapid box-feeding device for gun head of micropipettor |
| CN106000498A (en) * | 2016-07-29 | 2016-10-12 | 李玉美 | Plastic dropper with built-in movable metal elastic sheet |
| CN205914172U (en) * | 2016-08-10 | 2017-02-01 | 武汉黄鹤楼香精香料有限公司 | Novel liquid -transfering gun |
| CN207204136U (en) * | 2017-08-14 | 2018-04-10 | 遵义医学院附属医院 | A kind of quantitative liquid shifter |
-
2018
- 2018-10-29 CN CN201811271678.8A patent/CN109321443B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933048A (en) * | 1974-02-12 | 1976-01-20 | Medical Laboratory Automation, Inc. | Pipettes |
| US4164870A (en) * | 1978-04-10 | 1979-08-21 | Medical Laboratory Automation, Inc. | Pipettes |
| CN203329751U (en) * | 2013-06-07 | 2013-12-11 | 顾艳宏 | Rapid box-feeding device for gun head of micropipettor |
| CN106000498A (en) * | 2016-07-29 | 2016-10-12 | 李玉美 | Plastic dropper with built-in movable metal elastic sheet |
| CN205914172U (en) * | 2016-08-10 | 2017-02-01 | 武汉黄鹤楼香精香料有限公司 | Novel liquid -transfering gun |
| CN207204136U (en) * | 2017-08-14 | 2018-04-10 | 遵义医学院附属医院 | A kind of quantitative liquid shifter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109321443B (en) | 2021-06-29 |
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