CN209107415U - A kind of sampler - Google Patents
A kind of sampler Download PDFInfo
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- CN209107415U CN209107415U CN201821030728.9U CN201821030728U CN209107415U CN 209107415 U CN209107415 U CN 209107415U CN 201821030728 U CN201821030728 U CN 201821030728U CN 209107415 U CN209107415 U CN 209107415U
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Abstract
The utility model relates to medical treatment and nursing technical fields, more particularly to a kind of sampler, including pot for storing up liquid body, pot for storing up liquid body has liquid-storing cavity, one end of the pot for storing up liquid body is equipped with imbibition interface, the other end is equipped with the liquid interface that goes out for connecting negative pressure line, and the setting of pot for storing up liquid body is connected to the sample connection of liquid-storing cavity, and sample connection is adjacent with liquid interface out;The imbibition interface is equipped with check valve, and the imbibition interface, the liquid-storing cavity are connected to form unidirectional drainage channel with the liquid interface out.Compared with prior art, beneficial effect is the utility model: the utility model can preferably guarantee that liquid does not backflow, while the liquid previously drained being avoided to remain in liquid-storing cavity, mix with the liquid-liquid currently extracted, and avoid in use process the pollution of itself.Have the characteristics that sampling is quick, convenient, reduces labour costs and time cost.
Description
Technical field
The utility model relates to medical treatment and nursing technical fields, and in particular to a kind of sampler.
Background technique
Clinic needs to extract partially liq progress assay from drainage-fluid when using negative pressure drainage product, due to
Negative pressure line is in the state of being fully sealed, and sample drawn is with regard to inconvenient at this time.If pressing from both sides stopped pipe road, pass through connecing for disconnection
It is aspirated at mouthful, is easy that drainage-fluid is made to drip or be contaminated, does not meet the requirement of institute's sensing control;If directly syringe needle is pierced into
Suction in drainage tube, will leaving voids, on the one hand with outside air traffic, sealing state is destroyed, and negative pressure drainage is caused to be imitated
Fruit decline is lost, and contaminated and retrograde infection risk is on the other hand also had.
It, can the simple and direct convenient acquisition for carrying out sample and sample so while using negative pressure drainage product
This fresh and cleaning, it is necessary to do the following requirement:
First, when extracting sample, it can guarantee that drainage line is still sealing without leakage;
Second, the sample extracted is to drain the body fluid come the nearest period, is not mixed with drainage-fluid earlier;
Third is repeatedly taken at extraction, still has good leakproofness, while preventing liquid from backflowing.
Chinese patent CN205144613U discloses a kind of dedicated liquid taking device of internal medicine nursing, mainly includes probe tube, storage
Liquid pipe, intubation and negative pressure device, the front end of the probe tube connect feed liquor hose, check valve are arranged on the feed liquor hose
Door, the feed liquor hose other end connect the intubation, and the other end of the probe tube connects the negative pressure device by short tube,
The lower end of the probe tube is equipped with opening, and opening connects drainage tube, and O-ring seal, institute is arranged with drainage tube junction in opening
It states first sealing cover of the drainage tube across the liquid storage pipe upper end and protrudes into the inside of the liquid storage pipe, the liquid storage pipe is equipped with the
One scale also sets up branch pipe in the side of the liquid storage pipe, and the branch pipe opening is arranged the second sealing cover, in the second sealing cover
Sampling dropper is equipped at the heart, sacculus is drawn in connection at the top of the sampling dropper, and the sampling dropper is equipped with the second scale.
Although above-mentioned liquid taking device can guarantee drainage line still sealing without leakage when sampling, need additionally
Liquid storage pipe carries out liquid storage, will cause the body fluid for draining and mixes with drainage-fluid previously earlier.
Summary of the invention
Purpose of the utility model is to solve the above problems, provide a kind of sampler.
In order to reach above-mentioned purpose of utility model, the utility model uses following technical scheme:
A kind of sampler, including pot for storing up liquid body, pot for storing up liquid body have liquid-storing cavity, and one end of the pot for storing up liquid body, which is equipped with, inhales
Liquid interface, the other end are equipped with the liquid interface that goes out for connecting negative pressure line, and the setting of pot for storing up liquid body is connected to the sample connection of liquid-storing cavity,
Sample connection is adjacent with liquid interface out;The imbibition interface is equipped with check valve, the imbibition interface, the liquid-storing cavity and described
Liquid interface is connected to form unidirectional drainage channel out.
Preferably, the sample connection is obliquely installed towards the imbibition interface.
Preferably, sealing-plug is equipped in the sample connection.
Preferably, the check valve is set to the internal orifice of the imbibition interface and protrudes into the liquid-storing cavity.
Preferably, tapered portion is arranged in one end of the pot for storing up liquid body, and tapered portion is along the tapered formation in liquid direction out, the liquid out
Interface is connected with the slot of the tapered portion.
Preferably, the check valve includes hollow valve body and is placed in the intracorporal flap of valve, valve body have liquid-inlet and
Liquid outlet is horizontally disposed with annular groove on valve interior wall, and flap is in annular groove, and flap is by the inner cavity of the valve body
It is separated to form the first drainage channel being connected to liquid-inlet, the second drainage channel being connected to liquid outlet;The annular is recessed
Spring support is arranged in trench bottom, and flap connect with spring support, flap by the support of spring support and the top surface palette of annular groove,
The flap compresses the spring support and is connected to first drainage channel and the second drainage channel when being driven by negative pressure.
Preferably, drainage face is formed on the bottom of the annular groove, and the drainage is tilted facing towards the liquid outlet.
Preferably, the inner wall of the pot for storing up liquid body is equipped with filler ring, and the upper end of the valve body is convex equipped with matching with filler ring
Ring, valve body are fixed in liquid-storing cavity by the clamping engagement of bulge loop and filler ring.
Preferably, the upper surface of the flap is arc surface.
Preferably, the lower part of the valve body is funnel-shaped.
Compared with prior art, beneficial effect is the utility model:
1, check valve is arranged on pot for storing up liquid body the utility model, blocks liquid to prevent from backflowing, compared with the existing technology
Middle that check valve is arranged on exterior line, the utility model can preferably guarantee that liquid does not backflow, while avoid previously draining
Liquid remain in liquid-storing cavity, mixed with the liquid currently extracted, avoid in use process the pollution of itself.
2, the utility model does not need to be additionally provided device for storing liquid, and pot for storing up liquid can directly store liquid and extract, sampling quickly,
It is convenient, reduce labour costs and time cost.
3, when the utility model extracts sample, liquid needle is taken to pass through the sealing-plug at sample connection, can guaranteed unidirectional
Drainage line is still sealing without leakage, while still having good leakproofness after can also carrying out multiple repairing weld extraction.
4, the utility model structure is simple, at low cost, and one can be connected on a drainage tube, cross-infection is avoided, has
Conducive to popularization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of the check valve of the utility model.
In figure: 1 pot for storing up liquid body, 1-1 liquid-storing cavity, 1-2 sample connection, 1-3 imbibition interface, 1-4 go out liquid interface, and 1-5 is tapered
Portion, 1-6 filler ring, 2 negative pressure lines, 3 check valves, 3-1 valve body, 3-2 flap, 3-3 liquid-inlet, 3-4 liquid outlet, 3-5 annular
Groove, the first drainage channel of 3-6, the second drainage channel of 3-7,3-8 spring support, 3-9 drain face, 3-10 bulge loop, 4 sealing-plugs.
Specific embodiment
Below in conjunction with the attached drawing in the embodiments of the present invention, to the technical scheme in the embodiment of the utility model into
Row clearly and completely describes, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, is fallen within the protection scope of the utility model.
The present embodiment is as shown in Figure 1 and Figure 2, a kind of sampler, including tubular, hollow pot for storing up liquid body 1, pot for storing up liquid
The inside of body 1 be liquid-storing cavity 1-1,1 both ends of pot for storing up liquid body be respectively set the imbibition interface 1-3 being connected to liquid-storing cavity 1-1 and
Liquid interface 1-4 out.Diameter of the diameter of the imbibition interface 1-3 less than the liquid interface 1-4 out, the one of the pot for storing up liquid body 1
End setting tapered portion 1-5, tapered portion 1-5 direction go out the tapered formation in liquid direction, the liquid interface 1-4 and tapered portion 1-5 out
Slot be connected, liquid can be made smoothly to be extracted.One connecting tube is installed on imbibition interface 1-3, is connected on liquid interface 1-4 out
Negative pressure line 2, negative pressure line 2 connect negative pressure device, are extracted in pot for storing up liquid body 1 by negative pressure device by the connection of negative pressure line 2
Air.
The sample connection 1-2 that is connected to liquid-storing cavity 1-1 is set on pot for storing up liquid body 1, sample connection 1-2 be it is cylindric, it is described
It is a chamber being connected to the liquid-storing cavity 1-1 inside sample connection 1-2, sample connection is inclined to be arranged on pot for storing up liquid body 1,
Inclined direction is to be biased to the imbibition interface 1-3, and the entrance for making liquid enter accommodating chamber from liquid-storing cavity 1-1 is biased to the imbibition
Interface 1-3, convenient for taking liquid.The sealing-plug 4 with accommodating chamber sealing cooperation is equipped in the accommodating chamber.The sealing-plug 4 is medical
Rubber stopper.The sealing-plug 4 of configuration is soft flexible, repeatedly punctures and is still able to maintain sealing state.
A check valve 3 is arranged in the internal orifice of the imbibition interface 1-3, and check valve 3 protrudes into liquid-storing cavity 1-1, the imbibition
Interface 1-3, liquid-storing cavity 1-1 are connected to the liquid interface -4 that goes out, and cooperatively form unidirectional drainage channel by the way that check valve 3 is arranged.
After negative pressure device extracts the air of liquid-storing cavity 1-1, liquid-storing cavity 1-1 forms negative pressure, and liquid enters unidirectional drainage channel, and liquid is continuous
Pass through unidirectional drainage channel, after so that liquid is constantly drained to liquid-storing cavity 1-1, using syringe in sample connection 1-2 at, general
Syringe needle is pierced into sealing-plug 4, runs through sealing-plug 4, is extracted syringe after extracting liquid, is completed sampling, at this time sealing-plug 4
It can guarantee that liquid does not leak, and sampling can be punctured repeatedly.Liquid after the completion of sampling directly passes through unidirectional drainage channel and is discharged
Outside device, therefore the liquid previously drained will not be remained in liquid-storing cavity, be mixed with the liquid currently extracted, avoid use
The pollution of itself in the process.
The check valve 3 includes the hollow valve body 3-1 and flap 3-2 being placed in valve body 3-1, and valve body 3-1 is funnel-shaped,
Valve body 3-1 has liquid-inlet 3-3 and liquid outlet 3-4, is horizontally disposed with annular groove 3-5, flap 3-2 on valve body 3-1 inner wall
The diameter of flap 3-2 is less than the diameter of annular groove 3-5 in annular groove 3-5, and flap 3-2 is by the valve body 3-1's
Inner cavity is separated to form the first drainage channel 3-6 being connected to liquid-inlet 3-3, second be connected to liquid outlet 3-4 drainage is led to
Road 3-7;Spring support 3-8 is arranged in the bottom the annular groove 3-5, and flap 3-2 is installed on spring support 3-8, does not produce in valve body 3-1
When raw negative pressure, flap 3-2 is contacted and palette by the resilient support of spring support 3-8 and the top surface of annular groove 3-5, is prevented
Liquid backflows.When negative pressure device works, it is greater than valve body 3-1 air pressure inside, the flap 3-2 in another lateral pressure of check valve 3
The spring support 3-8 is compressed by negative pressure driving, flap 3-2 is separated with the top surface of annular groove 3-5 makes first drainage channel
3-6 and the second drainage channel 3-7 connection.The top surface of flap 3-2 is arc surface, the first drainage channel 3-6 and the second drainage channel
After 3-7 connection, liquid can more swimmingly be entered in valve body 3-1 by arc surface.The bottom of the annular groove 3-5, which is formed, draws
Stream interface 3-9, the drainage face 3-9 are tilted towards liquid outlet 3-4, and liquid is drawn from the lower section of flap 3-2 by entering second
In circulation road 3-7.
The inner wall of the pot for storing up liquid body 1 is equipped with filler ring 1-6, and the upper end of the valve body 3-1 is equipped with to match with filler ring 1-6
Bulge loop 3-10, valve body 3-1 are filled in pot for storing up liquid body 1, are fixed on liquid-storing cavity by the clamping engagement of bulge loop 3-10 and filler ring 1-6
In 1-1.
In vacuum suction, drainage-fluid enters in pot for storing up liquid body 1 present apparatus from imbibition interface 1-3, in imbibition interface 1-3 court
Under, out liquid interface 1-4 upward in the state of, the air in pot for storing up liquid body 1 is drained, and drainage-fluid constantly passes through pot for storing up liquid body later
1, syringe needle is entered in pot for storing up liquid body 1 by sealing-plug 4, and the drainage-fluid of acquisition is fresh pollution-free.Sample drawn simultaneously
It finishes, syringe needle exits, and sealing-plug 4 can keep channel sealing state well.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of sampler, which is characterized in that including pot for storing up liquid body (1), pot for storing up liquid body (1) has liquid-storing cavity (1-1), described
One end of pot for storing up liquid body (1) is equipped with imbibition interface (1-3), and the other end is equipped with the liquid interface (1- out for connecting negative pressure line (2)
4), the sample connection (1-2) of pot for storing up liquid body (1) setting connection liquid-storing cavity (1-1), sample connection (1-2) and liquid interface (1-4) out
It is adjacent;Check valve (3) are equipped at the imbibition interface (1-3), the imbibition interface (1-3), the liquid-storing cavity (1-1) and described
Liquid interface (1-4) connection out forms unidirectional drainage channel.
2. a kind of sampler according to claim 1, which is characterized in that the sample connection (1-2) is towards the suction
Liquid interface (1-3) is obliquely installed.
3. a kind of sampler according to claim 1 or 2, which is characterized in that be equipped in the sample connection (1-2) close
Blocking (4).
4. a kind of sampler according to claim 1 or 2, which is characterized in that the check valve (3) is set to the suction
The internal orifice of liquid interface (1-3) simultaneously protrudes into the liquid-storing cavity (1-1).
5. a kind of sampler according to claim 1, which is characterized in that one end setting of the pot for storing up liquid body (1) is gradually
Contracting portion (1-5), tapered portion (1-5) is along the tapered formation in liquid direction out, liquid interface (1-4) out and the tapered portion (1-5)
Slot is connected.
6. a kind of sampler according to claim 1, which is characterized in that the check valve (3) includes hollow valve body
(3-1) and the flap (3-2) being placed in valve body (3-1), valve body (3-1) have liquid-inlet (3-3) and liquid outlet (3-4),
It is horizontally disposed with annular groove (3-5) on valve body (3-1) inner wall, flap (3-2) is in annular groove (3-5), flap (3-2)
The inner cavity of the valve body (3-1) is separated to form to the first drainage channel (3-6) and liquid discharge being connected to liquid-inlet (3-3)
The second drainage channel (3-7) of mouth (3-4) connection;Spring support (3-8) is arranged in the annular groove bottom (3-5), flap (3-2)
Connect with spring support (3-8), flap (3-2) by the support of spring support (3-8) and the top surface palette of annular groove (3-5),
The flap (3-2) compresses the spring support (3-8) and draws first drainage channel (3-6) and second when being driven by negative pressure
Circulation road (3-7) connection.
7. a kind of sampler according to claim 6, which is characterized in that the bottom of the annular groove (3-5) is formed
Drainage face (3-9), the drainage face (3-9) are tilted towards liquid outlet (3-4).
8. a kind of sampler according to claim 6, which is characterized in that the inner wall of the pot for storing up liquid body (1) is equipped with
Filler ring (1-6), the upper end of the valve body (3-1) are equipped with the bulge loop (3-10) to match with filler ring (1-6), and valve body (3-1) passes through convex
The clamping engagement of ring (3-10) and filler ring (1-6) are fixed in liquid-storing cavity (1-1).
9. a kind of sampler according to claim 6, which is characterized in that the top surface of the flap (3-2) is arc surface.
10. a kind of sampler according to claim 6, which is characterized in that the valve body (3-1) is funnel-shaped.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821030728.9U CN209107415U (en) | 2018-07-02 | 2018-07-02 | A kind of sampler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821030728.9U CN209107415U (en) | 2018-07-02 | 2018-07-02 | A kind of sampler |
Publications (1)
Publication Number | Publication Date |
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CN209107415U true CN209107415U (en) | 2019-07-16 |
Family
ID=67195930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201821030728.9U Active CN209107415U (en) | 2018-07-02 | 2018-07-02 | A kind of sampler |
Country Status (1)
Country | Link |
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CN (1) | CN209107415U (en) |
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2018
- 2018-07-02 CN CN201821030728.9U patent/CN209107415U/en active Active
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