CN206198402U - Syringe - Google Patents

Abstract

The utility model provides a kind of syringe, including syringe, piston, core bar, suction tube and injection-tube, one end of core bar are fixedly connected with the piston, suction tube and injection-tube are arranged at the front end of the syringe, the first screen pack and the first valve are provided with suction tube, the second screen pack and the second valve are provided with injection-tube, the mesh of second screen pack is smaller than the mesh of the first screen pack.With the above mentioned technical proposal, the utility model has the advantages that rational in infrastructure, good filtration effect, by suction tube aspiration medicinal liquid, by injection-tube liquid medicine injection, suction is separated with injection, it is to avoid in aspiration medicinal liquid, the impurity remained in needle tubing and syringe needle is injected into human vas, can be better protected from impurity and enter human vas.

Description

Syringe

Technical field

The utility model belongs to technical field of medical instruments, specifically a kind of injection that can prevent impurity from entering human vas Device.

Background technology

Syringe is a kind of conventional medical instruments, is used for drawing blood or is injected intravenously, and nurse enters to patient sometimes Preparating liquid is needed before row injection, when being made up a prescription with syringe, makes rubber stopper particulate enter to be used as medicine due to puncturing bottle stopper repeatedly, during acupuncture In product, it is injected device and sucks and inject in human vas；When medical worker is with liquid inside syringe pump ampoule bottle, striking There is the glass particle being invisible to the naked eye to be mixed into liquid the inside when beating, be drawn onto the injection of needle tubing the inside into the human body, human body can be caused Certain injury.The effect that conventional syringe is not filtered, it is impossible to avoid impurity from entering human vas；Also there is a kind of needle tubing at present The inside is provided with the syringe of screen pack, and this syringe all passes through same screen pack in suction and injection, it is impossible to difference The particulate matter of size is filtered by different level, and filter effect is poor；And this syringe can prevent the impurity inside syringe from entering Enter human vas, but be not avoided that in aspiration medicinal liquid, the impurity remained in needle tubing and syringe needle is injected into human vas, Prevent impurity poor into the effect of human vas.

Utility model content

The purpose of this utility model is to provide a kind of syringe rational in infrastructure, solves existing syringe, filtering effect Really poor problem, and during aspiration medicinal liquid, the impurity remained in needle tubing and syringe needle is injected into human vas, prevents impurity from entering Enter the poor problem of human vas effect

The purpose of this utility model realizes that it includes syringe, piston, core bar, suction by such technical scheme Pipe and injection-tube, one end of the core bar are fixedly connected with the piston, and the suction tube and injection-tube are arranged at the pin The front end of cylinder, is provided with the first screen pack and the first valve in the suction tube, the second filtering is provided with the injection-tube Net and the second valve, the mesh of the mesh less than the first screen pack of second screen pack.

Further, one end of the suction tube is connected to the front end of the syringe, and the other end is provided with the first syringe needle, described First syringe needle is threadedly coupled with the suction tube.

Further, the second syringe needle is provided with the injection-tube, second syringe needle is threadedly coupled with the injection-tube.

Further, first valve is arranged on the link position of suction tube and syringe.

Further, projection is provided with the piston, the raised shape, size are adapted to injection-tube, described second Valve and second screen pack are arranged on the front end of injection-tube.

Further, second screen pack is with respect to the second valve closer to the front end of injection-tube.

In sum, the beneficial effects of the utility model are：Suction tube and injection-tube, suction tube and note are provided with syringe The front end that pipe is arranged at the syringe is penetrated, is provided with suction tube in the first screen pack and the first valve, injection-tube and set There are the second screen pack and the second valve, the mesh of the second screen pack is smaller than the mesh of the first screen pack, aspirated by suction tube Liquid, by injection-tube liquid medicine injection, suction is separated with injection, it is to avoid in aspiration medicinal liquid, remained in needle tubing and syringe needle Impurity be injected into human vas, impurity can be better protected from and enter human vas；Because suction tube and injection-tube the inside all set Liquid can be filtered when being equipped with screen pack, suction and injection, because the mesh of the second screen pack is less than the first screen pack Mesh, particle diameter slightly larger impurity is filtered out during suction, particle diameter slightly smaller impurity is filtered out during injection, to different size of particle Thing is filtered by different level, good filtration effect.

Be connected to the front end of the syringe due to one end of suction tube, the other end is provided with the first syringe needle, the first syringe needle with Suction tube is threadedly coupled.The first syringe needle is provided with suction tube, during the liquid medicine contained in medicine bottle of the suction with rubber lid more Plus it is convenient.First syringe needle is threadedly coupled with suction tube, the syringe needle of easy disassembly first；Also it is avoided that the first pin of clamping connection of choosing During head, the first syringe needle is pulled up suddenly, medical personnel is caused with accidental injury and cross-infection occurs.

Due to being provided with the second syringe needle on the injection-tube, the second syringe needle is threadedly coupled with injection-tube, easy disassembly injection Medical personnel are caused accidental injury and handed over by the syringe needle on pipe, it is to avoid during the syringe needle of clamping of choosing connection, syringe needle is pulled up suddenly Fork infection.

The junction of suction tube and syringe is arranged on due to the first valve, in suction tube will not residual liquor, do not result in The waste of liquid.

Due to being provided with projection on piston, the raised shape, size are adapted to injection-tube, second valve and institute State the front end that the second screen pack is arranged on injection-tube.Measured medicine in syringe can be injected in human body to greatest extent, reduced The waste of liquid.

Prevent from being rubbed off during the second valve folding closer to the front end of injection-tube with respect to the second valve due to the second screen pack The impurity for falling is injected into human vas, further reduces injury of the impurity to human body.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

In figure, 1, syringe；2nd, piston；3rd, core bar；4th, suction tube；5th, injection-tube；6th, the first screen pack；7th, the first valve； 8th, the second screen pack；9th, the second valve；10th, the first syringe needle；11st, the second syringe needle；12nd, it is raised.

Specific embodiment

In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under Face combines and is specifically illustrating, and the utility model is expanded on further.

As shown in figure 1, the utility model includes syringe 1, piston 2, core bar 3, suction tube 4 and injection-tube 5, the one of core bar 3 End is fixedly connected with piston 2, and suction tube 4 and injection-tube 5 are arranged at the front end of syringe 1, and suction tube 4 is interior to be provided with the first filtering The valve 7 of net 6 and first, is provided with the second screen pack 8 and the second valve 9 in injection-tube 5, and the mesh of the second screen pack 8 is less than the The mesh of one screen pack 6；One end of suction tube 4 is connected to the front end of the syringe 1, and the other end is provided with the first syringe needle 10, the One syringe needle 10 is threadedly coupled with suction tube 4；The second syringe needle is connected with injection-tube, the second syringe needle 11 is threadedly coupled with injection-tube 5.

When being aspirated using the utility model, the second valve 9 is closed, open the first valve 7.First syringe needle 10 is installed to On suction tube 4, during the first syringe needle 10 on suction tube 4 then stretched into medicinal liquid bottle.Core bar 3 is grasped, to the rear end of syringe 1 Pull, be pumped into liquid in syringe 1 with the end motion backward of piston 2 by core bar 3.In aspiration procedure, liquid is by the first filtering Net 6, the first screen pack 6 carries out first time filtering to the impurity in liquid.The first valve 7 is closed, the first syringe needle 10 is pulled down, aspirated Finish.

During injection, the second syringe needle 11 is installed on injection-tube 5, the second syringe needle 11 is pierced into patient vessel, open second Valve 9.Press...with one's finger the rear end of core bar 3, promotes core bar 3, core bar 3 to be travelled forward with piston 2 forward, by liquid by the Two screen pack 8 injects the blood vessel of patient, and the second syringe needle 11 is extracted from patient vessel, and injection is finished, and the is pulled down from injection-tube 5 Two syringe needles 11.In injection process, the second screen pack 8 carries out second filtering to the impurity in liquid.

In whole process, by the aspiration medicinal liquid of suction tube 4, by the liquid medicine injection of injection-tube 5, suction is separated with injection, Avoid in aspiration medicinal liquid, the impurity remained in needle tubing and syringe needle is injected into human vas, impurity can be better protected from and entered Enter human vas.

Suction tube 4 and the inside of injection-tube 5 are both provided with to be filtered liquid when screen pack, suction and injection, and two Secondary filtering, further prevents impurity to be injected into human vas.

The mesh of the second screen pack 8 is smaller than the mesh of the first screen pack 6, and particle diameter slightly larger impurity is filtered out during suction, note Particle diameter slightly smaller impurity is filtered out when penetrating, different size of particulate matter is filtered by different level, good filtration effect.

As shown in figure 1, one end of suction tube 4 is connected to the front end of the syringe 1, the other end is provided with the first syringe needle 10, First syringe needle 10 is threadedly coupled with suction tube 4.The first syringe needle is provided with suction tube, is contained in medicine bottle of the suction with rubber lid More facilitate during the liquid medicine of dress.First syringe needle 10 is threadedly coupled with suction tube 4, the first syringe needle of easy disassembly 10；Also it is avoided that and pulls out During the first syringe needle that card taking connects in succession, the first syringe needle is pulled up suddenly, medical personnel is caused with accidental injury and cross-infection occurs.

As shown in figure 1, being connected with the second syringe needle on injection-tube, the second syringe needle 11 is threadedly coupled with injection-tube 5, easy disassembly The second syringe needle 11 on injection-tube 5, it is to avoid during the second syringe needle of clamping of choosing connection, the second syringe needle is pulled up suddenly, to medical care Personnel cause to accidentally injure and cross-infection occurs.

As shown in figure 1, the first valve 7 is arranged on the junction of suction tube 4 and syringe 1.After exhausting liquid, first is closed Valve 7, shakes syringe 1 and suction tube 4, and the liquid remained in suction tube 4 passes back into medicinal liquid bottle.After injection is finished, due to the One valve 7 is closed mode, and the first valve 7 is arranged on suction tube 4 and the junction of syringe 1, and liquor residue is not had in suction In pipe 4, the waste of liquid is not resulted in.

As shown in figure 1, being provided with raised 12 on piston 2, raised 12 shape, size are adapted to injection-tube 5, described Second valve 9 and second screen pack 8 are arranged on the front end of injection-tube 5.Raised 12 shape, size and injection-tube are fitted With referring to：During liquid medicine injection, hold core bar 3 and push ahead, core bar 3 is pushed ahead with piston 2.When piston 2 is advanced to pin Cylinder 1 foremost when, raised 12 can just enter injection-tube 5, and reach the second valve 9 and second filtering of the front end of injection-tube 5 At net 8.And then measured medicine in syringe 1 can be injected in human body to greatest extent, reduce the waste of liquid.

As shown in figure 1, because relative second valve 9 of the second screen pack 8 is closer to the front end of injection-tube 5, preventing the second valve During 9 folding of door, the impurity that friction is dropped is injected into human vas, further reduces injury of the impurity to human body.

Implementation method of the present utility model is these are only, the scope of the claims of the present utility model, every profit is not thereby limited The equivalent structure made with the utility model specification and accompanying drawing content, is directly or indirectly used in other related technology necks Domain, similarly within scope of patent protection of the present utility model.

Claims (6)

1. a kind of syringe, it is characterised in that：Including syringe, piston, core bar, suction tube and injection-tube, one end of the core bar It is fixedly connected with the piston, the suction tube and injection-tube are arranged at being set in the front end of the syringe, the suction tube There are the first screen pack and the first valve, the second screen pack and the second valve, second screen pack are provided with the injection-tube Mesh less than the first screen pack mesh.

2. syringe as claimed in claim 1, it is characterised in that：Before one end of the suction tube is connected to the syringe End, the other end is provided with the first syringe needle, and first syringe needle is threadedly coupled with the suction tube.

3. syringe as claimed in claim 1, it is characterised in that：The second syringe needle, described second are provided with the injection-tube Syringe needle is threadedly coupled with the injection-tube.

4. syringe as claimed in claim 1, it is characterised in that：First valve is arranged on the connection of suction tube and syringe Place.

5. syringe as claimed in claim 1, it is characterised in that：It is provided with projection on the piston, the raised shape, Size is adapted to injection-tube, and second valve and second screen pack are arranged on the front end of injection-tube.

6. syringe as claimed in claim 1, it is characterised in that：Second screen pack is with respect to the second valve closer to injection The front end of pipe.