CN208527448U - A kind of cleaning swab - Google Patents
A kind of cleaning swab Download PDFInfo
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- CN208527448U CN208527448U CN201820579349.9U CN201820579349U CN208527448U CN 208527448 U CN208527448 U CN 208527448U CN 201820579349 U CN201820579349 U CN 201820579349U CN 208527448 U CN208527448 U CN 208527448U
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- chamber
- cleaning
- swab
- sap cavity
- ontology
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Abstract
The utility model discloses a kind of cleaning swabs, including swab ontology, inlet and liquid outlet are provided on the swab ontology, the admission chamber of connection inlet is provided in swab ontology, and the sap cavity out of connection liquid outlet, the admission chamber and sap cavity out be connected tos by cleaning chamber, described to go out sap cavity or to clean and intracavitary be provided with the non-return structure for preventing Liquid Residue from blowing back into admission chamber.The cleaning swab of the utility model intracavitary is provided with the non-return structure for preventing Liquid Residue from blowing back into admission chamber in sap cavity out or cleaning, when cleaning swab stops working, non-return structure prevents cleaning chamber and the remaining cleaning fluid in sap cavity enters admission chamber out, to avoid cross contamination.
Description
Technical field
The utility model relates to blood cell analysis apparatus field, specifically a kind of swab applied to sampling needle cleaning.
Background technique
It, can be in the inner and outer surfaces and sample of sampling needle after drawing blood sample in test tube in cellanalyzer use process
Blood sample is left in product assignment channel, before acquiring next sample analysis, these remaining blood samples is needed to clean up, with
The detection to next blood sample is avoided to generate pollution effect.
In order to reach cleaning requirement, the working principle generallyd use is will to be adsorbed on channel to be cleaned with the cleaning solution of flowing
In blood sample wash out and take away.This cleaning system generally includes:
(1) container of one or more internal splendid attire cleaning solutions that can generate normal pressure；
(2) returnable of negative pressure can be generated；
(3) cleaning solution flushing and collection device, i.e. swab；
(4) connecting line and valve；
(5) swab and sampling needle transmission mechanism.
This cleaning system requires the sampling needle outer surface after cleaning in addition to it must not remain blood sample, will also drying as far as possible, together
When clean sampling needle inner and outer surfaces and sampling conduit during must not have the phenomenon of leakage, the key of this system is swab
Working performance.So the organization plan of swab is particularly important.
The utility model patent of Publication No. CN2896263Y provides the swab for cleaning sampling needle outer wall, and specific
Disclose two kinds of organization plans: one is being made of ontology, inlet opening, fluid hole, inlet opening under, fluid hole is in upper, swab
Body central cavity is coaxial using three-stage, becomes dimensional structure design；Inlet opening, fluid hole towards the same side of swab ontology,
And the two sides of a longitudinal surface are respectively at, axis is vertical with the axis antarafacial of corresponding first or second cavity.Above structure
Scheme, cleaning solution are mainly rinsed sampling needle outer wall from side, can reach far from the only a small amount of cleaning solution in inlet opening side,
In the presence of cleaning dead angle.Another ontology includes the first noumenon being independently arranged and the second ontology, second ontology insertion first
Body interior, same sampling three-stage is coaxial, becomes the cavity structure of size, but the first cavity is set to the first noumenon, second and third
Cavity is set to the second ontology.Second ontology is corresponding to be respectively equipped with the first and second annular groove into and out of the position of fluid apertures, first annular
Slot is being connected to equipped with through-hole with third cavity with inlet opening at the position of 180 degree, and the second annular groove is in the position of face fluid hole
It is connected to equipped with through-hole with the second cavity.Second of organization plan, although devising annular groove at inlet, liquid outlet,
Also 1 inlet is only devised, cleaning dead angle is equally existed.Meanwhile above two scheme all exist remaining cleaning fluid reflux,
The case where dropping liquid, be easy to cause cross-infection.
The Chinese invention patent of Publication No. CN102072962 discloses a kind of blood analyser using needle cleaning dress
It sets, including main body, inlet tube, outlet tube and mandrel, wherein mandrel inner chamber body includes limit chamber, cleaning chamber, slow chamber and receiving
Chamber；Inlet tube, outlet tube are in 90 degree of angles, and inlet tube is located at lower part, and outlet tube is located at top.Inlet passes through two
A channel is connect with inner cavity, and is mutually perpendicular to the channel of outlet.Since inlet tube, outlet tube are not directed towards the same side, but
90 degree of angles are in, swab the space occupied is necessarily increased, also pipe is walked to fluid path and brings difficulty, while also do not can avoid clear
The case where washing lotion reflux, dropping liquid.
Utility model content
In order to solve the problem of existing swab, there may be the dead zones that can not be cleaned and remaining cleaning fluid to flow back, dropping liquid,
Applicant has invented a kind of cleaning swab by studying intensively.
The technical scheme adopted by the utility model is that:
A kind of cleaning swab, including swab ontology are provided with inlet and liquid outlet, swab ontology on the swab ontology
It is inside provided with the admission chamber of connection inlet, and the sap cavity out of connection liquid outlet, the admission chamber and out sap cavity pass through cleaning
Chamber connection, it is described go out sap cavity or cleaning intracavitary be provided with the non-return structure for preventing Liquid Residue from blowing back into admission chamber.
Preferably, cleaning chamber or the out bottom of sap cavity is arranged in the non-return structure, and non-return structure is in round protrusion and height
In cleaning chamber or the baseplane of sap cavity out.
As a further improvement of the above technical scheme, be provided with inverted non-return structure at the top of the admission chamber, when into
When liquid mouth and liquid outlet exchange function, the effect of preventing Liquid Residue from flowing backwards also may be implemented.
Further, it is additionally provided in the swab ontology and the coaxial slow chamber and accommodating chamber of cleaning chamber, cleaning chamber, slowly
Chamber and accommodating chamber are sequentially communicated.
As a further improvement of the above technical scheme, the ring of both connections is provided between the admission chamber and accommodating chamber
Shape gap carries out 360 degree of flushings without dead angle to the sampling needle in swab by annular gap.
As a further improvement of the above technical scheme, from inlet proximal end to inlet, distal end is tilted for the annular gap
Setting, gap are changed from small to big, and are guaranteed border direction cleaning solution uniform flow, are also beneficial to 360 degree of cleaning solution without the uniform of dead angle
It rinses and punctures sampling wire surface.
As a further improvement of the above technical scheme, the diameter of the slow chamber is less than cleaning chamber and accommodating chamber.
Further, the inner wall of the slow chamber extends protrusion to cleaning cavity direction and forms non-return structure.
Further, the inner wall of the slow chamber forms non-return structure to cavity direction extension protrusion is accommodated.When slow chamber with
When being not provided with non-return structure between accommodating chamber, it is provided with big chamfered transition between the slow chamber and accommodating chamber, is conducive to clean
Liquid slow acceleration.
The beneficial effects of the utility model are:
The cleaning swab of the utility model is in sap cavity out or cleaning intracavitary be provided with prevents Liquid Residue from blowing back into admission chamber
Non-return structure, when clean swab stop working when, non-return structure prevent cleaning chamber and out the remaining cleaning fluid in sap cavity into
Sap cavity, to avoid cross contamination.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the cleaning swab of the utility model.
Fig. 2 is the cross-sectional view for cleaning swab.
Fig. 3 is the cross-sectional view for cleaning another angle of swab.
Specific embodiment
Referring to figs. 1 to Fig. 3, the utility model provides a kind of preferred implementation example for cleaning swab, including swab ontology
12, upper cover 2 and lower cover 9.The upper cover 2 and lower cover 9 can be wholely set with swab ontology 12, disconnected from each other can also pass through peace
Assembling structure is fixed on swab ontology 12.
The swab ontology 12 has the cavity that axially penetrates through, and the cavity includes the second cavity being sequentially arranged, slow
Chamber 5 and the first cavity are provided with inlet 10 and liquid outlet 11 on swab ontology 12, and inlet 10 is connected to the first cavity, out liquid
Mouth 11 is connected to the second cavitys.Preferably, it is same to be horizontally set on swab ontology 12 for the mouthpiece of the inlet 10 and liquid outlet 11
Side, and inlet 10 and liquid outlet 11 have difference in height on gravity direction.
The upper cover 2 is installed in the second cavity, and upper cover 2, which is provided with protrusion and protrudes into the second cavity, forms out sap cavity 4, institute
It states and is provided with limit chamber 1 in upper cover 2 and cleans chamber 3, sap cavity 4 passes through setting upper to the sap cavity 4 out around cleaning chamber 3, and out
The channel of 2 side wall of lid is connected to cleaning chamber 3.
In the first cavity, lower cover 9 is provided with protrusion and protrudes into formation admission chamber 7 in the first cavity for the installing of lower cover 9, under
Be provided in the protrusion of lid 9 accommodate sampling needle accommodating chamber 8, and between protrusion and swab ontology 12 formed be connected to admission chamber 7 and
The annular gap 6 of accommodating chamber 8.
The limit chamber 1, cleaning chamber 3, slow chamber 5, accommodating chamber 8 are arranged successively and connect and compose working cavity.Puncture sampling
Needle moves vertically in working cavity under external force.Limit chamber 1, cleaning chamber 3, slow chamber 5, accommodating chamber 8 concentricity
Strict control is needed, keeps the gap between working cavity and needle uniform.The internal diameter of limit chamber 1 is limited slightly larger than sampling needle is punctured
Chamber 1 mainly plays limit and motion guide to puncture sampling needle, makes to puncture the axle center that sampling needle is located at working cavity, limit chamber
About 1 design chamfered transition, is conducive to fluid and flows in working cavity, avoid sinuous flow.It is big to clean chamber 3, the internal diameter of slow chamber 5
In limit chamber 1, and the internal diameter of slow chamber 5 is less than cleaning chamber 3, is conducive to cleaning solution and smoothly flows through, guarantees air in working cavity
Flow velocity plays cleaning and drying to sampling needle is punctured.Slow 5 upper end of chamber is provided with the non-return coil structures of circle dress, described to stop
Loop 13 can be integrally formed with swab ontology 12, be also possible to the components such as the rubber ring added, and the non-return circle 13 is higher than clear
Chamber 3 and the out baseplane of sap cavity 4 are washed, cleaning chamber 3 is avoided and the remaining cleaning fluid in sap cavity 4 flows back into slow chamber and causes to intersect out
Pollution；Big chamfered transition is arranged in slow 5 lower end of chamber, is conducive to cleaning solution slow acceleration；In addition, slow 5 lower end of chamber also can be set
There is non-return circle 13 to replace chamfered transition, it is opposite with top non-return circle 13.The internal diameter of accommodating chamber 8 is maximum, avoids in cleaning process
Pollutant is adhered to working cavity inner wall.
The annular gap 6 is the protrusion of lower cover 9 and the gap of swab ontology 12, and 360 degree of a circle is without dead angle.Preferably,
The annular gap 6 is arranged higher than inlet 10, avoids cleaning solution direct projection from puncturing sampling needle and forms sinuous flow, also avoids cleaning drop
Liquid.Annular gap 6 is provided with chamfered transition, and annular gap 6 is obliquely installed from 10 proximal end of inlet to 10 distal end of inlet,
Gap is changed from small to big, and reduction fluid resistance is not only improved, and is also guaranteed border direction cleaning solution uniform flow, is conducive to cleaning solution 360
It spends the uniform flushing without dead angle and punctures sampling wire surface.Further, the sectional area summation of the annular gap 6 should no more than into
The sectional area of liquid mouth 10 is conducive to cleaning solution and generates certain impact force to sampling wire surface is punctured, improves cleaning effect.
The working principle of swab provided by the utility model is as follows: cleaning solution is under external positive pressure, by inlet
10, which enter admission chamber 7, forms spring, and external negative pressure makes to form negative pressure in the working cavity of swab through liquid outlet 11, to cleaning
Liquid generates suction, and cleaning solution is rinsed from annular gap 6 to sampling needle outer surface is punctured, then successively through slow chamber 5, cleaning
Chamber 3 goes out sap cavity 4, flows to liquid outlet 11, flows to external returnable；Meanwhile sampling needle is punctured under external power supply effect,
It moves up and down in working cavity, the puncture each position in sampling needle outer surface is made to be rinsed and air-dry.The utility model is by wiping
The gap of sub- ontology 12 and the first lid 9 forms 360 degree of annular gaps 6 without dead angle of circle, is conducive to 360 degree of cleaning solution without dead
The uniform flushing at angle punctures sampling wire surface, improves cleaning effect.And after swab stops working, non-return circle 13 prevents cleaning chamber
3 and the remaining cleaning fluid in sap cavity 4 flows back into slow chamber 5 out, avoid cross contamination.
The above specific structure is that the preferred embodiment to the utility model has carried out specific description, but is not intended to limit
The embodiments of the present invention and protection scope, those skilled in the art are without prejudice to before the spirit of the present invention
Various equivalent variations can also be made perhaps these equivalent deformations or replacement of replacement are all contained in the application right by putting
It is required that in limited range.
Claims (10)
1. a kind of cleaning swab, including swab ontology (12), inlet (10) and out liquid are provided on the swab ontology (12)
Mouth (11), the interior admission chamber (7) for being provided with connection inlet (10) of swab ontology (12), and connection liquid outlet (11) go out liquid
Chamber (4), the admission chamber (7) are connected to sap cavity out (4) by cleaning chamber (3), it is characterised in that: sap cavity (4) or clear out
It washes in chamber (3) and is provided with the non-return structure for preventing Liquid Residue from blowing back into admission chamber (7).
2. a kind of cleaning swab according to claim 1, which is characterized in that the non-return structure setting is in cleaning chamber (3)
Or the bottom of sap cavity (4), non-return structure are in round protrusion and are higher than cleaning chamber (3) or the out baseplane of sap cavity (4) out.
3. a kind of cleaning swab according to claim 2, which is characterized in that be provided with inversion at the top of the admission chamber (7)
Non-return structure.
4. a kind of cleaning swab according to any one of claims 1 to 3, which is characterized in that in the swab ontology (12) also
Be provided with cleaning chamber (3) coaxial slow chamber (5) and accommodating chamber (8), clean chamber (3), slow chamber (5) and accommodating chamber (8) according to
Secondary connection.
5. a kind of cleaning swab according to claim 4, which is characterized in that between the admission chamber (7) and accommodating chamber (8)
It is provided with the annular gap (6) of both connections.
6. a kind of cleaning swab according to claim 5, which is characterized in that the annular gap (6) is from inlet (10)
Proximal end is distally obliquely installed to inlet (10), and gap is changed from small to big.
7. a kind of cleaning swab according to claim 4, which is characterized in that the diameter of the slow chamber (5) is less than cleaning
Chamber (3) and accommodating chamber (8).
8. a kind of cleaning swab according to claim 7, which is characterized in that the inner wall of the slow chamber (5) to cleaning chamber
(3) direction extends protrusion and forms non-return structure.
9. a kind of cleaning swab according to claim 8, which is characterized in that the inner wall of the slow chamber (5) is to accommodating chamber
(8) direction extends protrusion and forms non-return structure.
10. a kind of cleaning swab according to claim 8, which is characterized in that the slow chamber (5) and accommodating chamber (8) it
Between be provided with big chamfered transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820579349.9U CN208527448U (en) | 2018-04-20 | 2018-04-20 | A kind of cleaning swab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820579349.9U CN208527448U (en) | 2018-04-20 | 2018-04-20 | A kind of cleaning swab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208527448U true CN208527448U (en) | 2019-02-22 |
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ID=65396359
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820579349.9U Active CN208527448U (en) | 2018-04-20 | 2018-04-20 | A kind of cleaning swab |
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| Country | Link |
|---|---|
| CN (1) | CN208527448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843229A (en) * | 2021-09-27 | 2021-12-28 | 中元汇吉生物技术股份有限公司 | Sampling needle cleaning device and sampling needle cleaning system applying same |
-
2018
- 2018-04-20 CN CN201820579349.9U patent/CN208527448U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843229A (en) * | 2021-09-27 | 2021-12-28 | 中元汇吉生物技术股份有限公司 | Sampling needle cleaning device and sampling needle cleaning system applying same |
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