CN208727528U - A kind of capillary device of fixed quantity drain - Google Patents
A kind of capillary device of fixed quantity drain Download PDFInfo
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- CN208727528U CN208727528U CN201820864610.XU CN201820864610U CN208727528U CN 208727528 U CN208727528 U CN 208727528U CN 201820864610 U CN201820864610 U CN 201820864610U CN 208727528 U CN208727528 U CN 208727528U
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- capillary
- mandril
- drain
- internal plug
- fixed quantity
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Abstract
The utility model discloses a kind of capillary device of fixed quantity drain, including capillary, internal plug and mandril, the internal plug is arranged in the capillary, and the mandril controls the movement of the internal plug, and the mandril is provided with multiple detents.The capillary device of the fixed quantity drain of the utility model, by the way that internal plug is arranged in capillary, using the movement of mandril control internal plug, and using detent control drain number and lifting rate, to realize fixed quantity drain.
Description
Technical field
The utility model relates to a kind of capillary devices of fixed quantity drain.
Background technique
It is carried out with being constantly progressive for quick detection means using a small amount of finger tip tip blood specimen in field of medical examination
The testing product of quantitative detection Multiple biomarkers is gaining popularity application, such as the detection of blood glucose or blood lipid project.When detection, sample-adding
Whether amount is accurately one of whether accurate key factor of testing result.Traditional quantitative capillary is indicated often through scribing line inhales sample
Volume, accuracy is poor, and operator is not easy to accurately control suction amount.Also, need to squeeze matching used suction nozzle when drain
Blood can be excluded, capillary tube inner wall blood residuals are more, are difficult to control, and it is inaccurate to will also result in lifting rate.
Meanwhile with the development of new science and technology, more and more entry (or multisample) joint-detection test paper are gradually listed,
Such as blood lipid entry joint-detection test paper (card) product, blood glucose/blood lipid joint-detection test paper (card) product, blood glucose/uric acid connection
Close Test paper (card) product, glutamic-pyruvic transaminase/glutamic-oxalacetic transaminease joint-detection test paper (card) product, glutamic-pyruvic transaminase/blood red
Albumen joint-detection test paper (card) product etc., wherein many products require repeatedly to heal the detection that could complete whole projects.
Must repeatedly be sucked blood using conventional capillary, multiple drain could be completed to be loaded, cumbersome and accuracy is bad, easy residual.
Therefore, it is necessary to a kind of capillary devices of fixed quantity drain to solve the above problems.
Utility model content
The technical problem to be solved by the present invention is to provide one kind can a quantitative liquid suction and fixed quantity drain
Capillary device.
In order to solve the above-mentioned technical problem, the technical side that the capillary device of the fixed quantity drain of the utility model uses
Case is as follows.
A kind of capillary device of fixed quantity drain, including capillary, internal plug and mandril, the internal plug are arranged described
In capillary, the mandril controls the movement of the internal plug.
Further, one end of the capillary is provided with direction signs line.Facilitate prompt user by mandril from band
Capillary is protruded into one end of direction signs line.
Further, at least one detent is provided on the mandril.It can be convenient and realized using at least one detent
Quantitative drain.
Further, there are two detents for setting on the mandril.It can be convenient and realized twice quantitatively using two detents
Drain.
Further, the outer diameter of the detent is greater than the internal diameter of the capillary.When touching capillary so as to detent,
Effectively mandril can be prevented further to push within certain limits.
Further, it is provided with air hole beyond the Great Wall in described.It is inside provided with air hole beyond the Great Wall facilitates and is inhaled using capillary
Blood, air can penetrate, but when blood fills up air hole, then stop sucking blood, the reason is that internal plug air hole is no longer ventilative, hair
Thin event resolves.The preferred hydrophobic, air-permeability material of the material of internal plug.
Further, the inner wall of the internal plug and the capillary is interference fitted.The inner wall interference of internal plug and capillary
Cooperation facilitates, and liquid in capillary is discharged using the movement of internal plug.
Further, when drain, the capillary is protruded into one end of the mandril.
Further, the every capillary is equipped with one or more corresponding mandril.The rule of more mandrils
Lattice are different, then can realize that various ways quantify drain by the mandril of more different sizes.
Further, at least one lasso is provided on the mandril.Detent is realized on mandril using set snare
Effect.
Further, graduation mark is provided on the mandril.Facilitate the quantitative drain of realization using graduation mark.
The utility model has the advantages that the capillary device of the fixed quantity drain of the utility model, by the way that internal plug is arranged in capillary,
Using the movement of mandril control internal plug, and using detent control drain number and lifting rate, to realize fixed quantity drain.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the capillary device of the fixed quantity drain of the utility model；
Fig. 2 is the structural schematic diagram of internal plug；
Fig. 3 is the schematic diagram that mandril is inserted into application method；
Fig. 4 is the schematic diagram of a drain in application method；
Fig. 5 is the schematic diagram of secondary drain in application method.
Specific embodiment
It is hereafter to be described in detail for embodiment cooperation attached drawing mode, but provided embodiment is not to limit this
The range that utility model is covered, and the non-sequence to limit its execution of the description of structure operation, it is any by component again group
The structure of conjunction, it is produced that there is equal and other effects device, it is all the range that the utility model is covered.
It please refers to shown in Fig. 1 and Fig. 2, the capillary device of the fixed quantity drain of the utility model, including capillary 1,
Internal plug 2 and mandril 3, internal plug 2 are arranged in capillary 1, and mandril 3 controls the movement of internal plug 2.Wherein, the preferred glass fiber of capillary 1
Tubule.
Preferably, one end of capillary 1 is provided with direction signs line 11.Facilitate prompt user by mandril from direction sign
Capillary is protruded into the one end for knowing line.
Preferably, at least one detent 31 is provided on mandril 3.It can be convenient and realize quantitative row using at least one detent
Liquid.Tool please refers to shown in Fig. 1 and Fig. 2, specifically, there are two detents 31 for setting on mandril 3.It can be convenient and utilize two detent realities
Drain is now quantified twice.Wherein, the detent 31 on mandril 3 can be, but not limited to by 3 corresponding position spherical mandrill 3 of mandril,
It causes the mode of 3 local deformation of mandril to be arranged, can also be set to detent 31 by stickup, hot melt or ultrasonic bonding mode
On mandril 3.
Preferably, air hole is provided in internal plug 2.It is inside provided with air hole beyond the Great Wall facilitates and is sucked blood using capillary, air
It can penetrate, but when blood fills up air hole, then stop sucking blood, reason is that internal plug air hole is no longer ventilative, capillarity
It disappears.The preferred hydrophobic, air-permeability material of the material of internal plug.The inner wall of internal plug 2 and capillary 1 is interference fitted.Internal plug and capillary it is interior
Wall interference fit facilitates, and liquid in capillary is discharged using the movement of internal plug.Wherein, the outer diameter of detent 31 is greater than capillary 1
Internal diameter.The outer diameter of detent 31 should be slightly bigger than the internal diameter of capillary 1, can be in certain limit when touching capillary so as to detent
Interior effective prevention mandril further pushes.Wherein, mandril and detent should have some strength and have certain elasticity concurrently, convenient for firmly
Push internal plug mobile, detent width is slightly larger than capillary inner diameter, but after enforcing extruding, should be able to slightly deform so as to smooth
Into inside capillary.The preferred glass fibre of material, PE, PP etc..
Preferably, when drain, capillary 1 is protruded into one end of mandril 3.
Preferably, every capillary 1 is equipped with one or more corresponding mandril 3.The specification of more mandrils is respectively not
It is identical, then it can realize that various ways quantify drain by the mandril of more different sizes.
Preferably, at least one lasso is provided on mandril 3.The effect of detent is realized on mandril using set snare.Top
Graduation mark is provided on bar 3.Facilitate the quantitative drain of realization using graduation mark.And the combination of graduation mark and lasso is utilized, Wo Menke
Very easily to realize arbitrarily quantitative detent setting.Wherein, lasso can be rubber ring or elastic ring etc., by covering in mandril
Specific position forms detent on 3.
Utility model principle: the internal diameter of capillary 1 and the installation site of internal plug 2 are for controlling the liquid absorption amount of capillary.Top
The number of the quantity control drain of detent 31 on bar 3.The position of detent 31 and spacing control each lifting rate.
Embodiment one:
It please refers to shown in Fig. 1 and Fig. 2, the fixed quantity drain capillary device of the utility model includes capillary 1, internal plug
2 and mandril 3.Contain internal plug 2 in capillary 1, and is equipped with direction signs line 11.Detent 31 there are two containing on mandril 3, to control
The volume of drain twice.
Capillary 1 selects high-boron-silicon glass capillary, internal diameter 1.5mm, length 75mm；2 1.50~1.55mm of diameter of internal plug,
Length 3mm, material are hydrophobic, air-permeability material, internal plug and capillary front end distance 34mm, total imbibition volume (V=π r2× h) it is 60
μl；3 length of mandril is 73mm；There are two detents 31, positioned at the end of mandril, is spaced 17mm.Specifically, first detent 31
At away from 3 front end 55mm of mandril, second detent 31 is located at away from 3 front end 72mm of mandril, spacing 17mm.
It please refers to shown in Fig. 3, Fig. 4 and Fig. 5,
Application method:
1, prepare:
A capillary and a mandril are taken out from Packaging Bottle；
2, lancing:
By " aculeus blood-taking " related request, needle pierces examinee's finger tip；
3, it sucks blood:
After flowing out part blood, by capillary front end close to blood, blood is sucked in capillary through capillary action, directly
It is drawn to internal plug position to blood, can be automatically stopped to suck blood (can voluntarily block internal plug air hole, capillarity after blood infiltration internal plug
It disappears).Pipette is 60 μ l.
4, it is inserted into mandril
Capillary leaves finger tip, and mandril insertion capillary (is plugged in mandril front end along capillary direction signs line one end
Enter in capillary), until mandril gently touches internal plug.
5, drain:
Capillary front end is directed at joint-detection test paper or the one of well of card, another hand slowly push mandril,
Blood is discharged, until mandril first " detent " is stuck in capillary end, stops pushing mandril immediately after meeting obstructions, and remove
Capillary.First time lifting rate is 30 μ l.
6, secondary drain:
Capillary front end is directed at joint-detection test paper or blocks another well, and will be firmly by first " card of mandril
Inside the push-in capillary of position ", and continue to push mandril until second " detent " is stuck in capillary end.Sample-adding is completed, and is removed
Capillary.Second of lifting rate is 30 μ l.
Quantitative drain capillary application notice:
1, quantitative drain capillary should be used by prescribed direction, must not reversely be used.
2, quantitative drain capillary is Glass breadks easily article, should be handled with care.
3, quantitative drain capillary internal plug position determines imbibition volume, must gently contact internal plug when being packed into mandril, no
To " drain " step, internal plug can't be moved.
4, mandril " detent " diameter is slightly larger than capillary inner diameter, and when drain should slowly push mandril, once it meets obstructions (i.e.
" detent " is stuck in capillary end) it should just stop pushing immediately, in order to avoid detent is pushed into capillary, cause first time drain
Amount.
5, quantitative drain capillary clean should be kept, must not be polluted.
6, quantitative drain capillary is one-off, should be handled by " clinical waste " after use.
The capillary device of the fixed quantity drain of the utility model utilizes mandril by the way that internal plug is arranged in capillary
The movement of internal plug is controlled, and using detent control drain number and lifting rate, to realize fixed quantity drain.
Claims (9)
1. a kind of capillary device of fixed quantity drain, it is characterised in that: including capillary (1), internal plug (2) and mandril (3),
In the capillary (1), the mandril (3) controls the movement of the internal plug (2), the mandril (3) for internal plug (2) setting
On be provided at least one detent (31).
2. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: the one of the capillary (1)
End is provided with direction signs line (11).
3. the capillary device of fixed quantity drain as described in claim 1, which is characterized in that be arranged on the mandril (3)
There are two detent (31).
4. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: the outer diameter of the detent (31)
Greater than the internal diameter of the capillary (1).
5. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: be arranged on the internal plug (2)
There is air hole.
6. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: the internal plug (2) with it is described
The inner wall of capillary (1) is interference fitted.
7. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: when drain, the mandril (3)
One end protrude into the capillary (1).
8. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: the every capillary (1)
It is equipped with one or more corresponding mandril (3).
9. the capillary device of fixed quantity drain as described in claim 1, it is characterised in that: be arranged on the mandril (3)
There is at least one lasso.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864610.XU CN208727528U (en) | 2018-06-06 | 2018-06-06 | A kind of capillary device of fixed quantity drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864610.XU CN208727528U (en) | 2018-06-06 | 2018-06-06 | A kind of capillary device of fixed quantity drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208727528U true CN208727528U (en) | 2019-04-12 |
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ID=66023385
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820864610.XU Active CN208727528U (en) | 2018-06-06 | 2018-06-06 | A kind of capillary device of fixed quantity drain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772112A (en) * | 2018-06-06 | 2018-11-09 | 南京大树生物医疗技术股份有限公司 | A kind of capillary device of fixed quantity drain |
-
2018
- 2018-06-06 CN CN201820864610.XU patent/CN208727528U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772112A (en) * | 2018-06-06 | 2018-11-09 | 南京大树生物医疗技术股份有限公司 | A kind of capillary device of fixed quantity drain |
| CN108772112B (en) * | 2018-06-06 | 2024-10-08 | 南京大树生物医疗技术股份有限公司 | Capillary tube device for quantitative liquid discharge for multiple times |
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