CN209107415U - A kind of sampler - Google Patents

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

A kind of sampler

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.