CN208877568U - A kind of children special-purpose disposable syringe - Google Patents

Abstract

The utility model discloses a kind of children special-purpose disposable syringes, including needle tubing, syringe needle, piston and needle core, the needle core is located in the needle tubing, and the piston is located at the needle core front end, opposite two latch closures are equipped on the needle tubing outer wall, finger can be inserted into the latch closure；Tongue is provided between the needle tubing and syringe needle, the tongue diameter is greater than the needle diameter and is less than the needle tubing diameter；The piston nose is equipped with the convex block being adapted with the tongue, the mandril being adapted with the syringe needle is equipped in the front end of the convex block, when the convex block is inserted into the tongue, the channel flowed out for medical fluid is formed between the convex block and tongue and between the mandril and syringe needle.The utility model can not only all release vaccine, avoid wasting, moreover it is possible to avoid slipping syringe because children cry and scream due to movability leads to medical staff's hand shaking；After the completion of injection, needle core can not be retrodicted, and syringe cannot be recycled, and prevent security risk.

Description

A kind of children special-purpose disposable syringe

Technical field

The utility model relates to field of medical device, and in particular to a kind of children special-purpose disposable syringe.

Background technique

Children, which fear, to have an injection, and in medical injection procedure, due to pain, often wails and creates an uproar in or even struggle energetically, and Syringe outer wall in the prior art is smooth, and the limbs collision between children and medical staff is just easy to that medical staff is allowed to hold There is shake even syringe and slips from hand in the hand of syringe, and this not only increases the feeling of pains of children, can also drop significantly Low working efficiency increases the work difficulty of medical staff.

Meanwhile syringe in the prior art, after the completion of injection, often there are also remaining medical fluids in syringe needle, make drug It cannot be fully injected into the human body, on the one hand cause the waste of drug, due effect is on the other hand possibly even not achieved.

In addition, the system of one needle of a people, one pipe is advocated to reduce infectious disease cross-infection in human body medicine injection, Therefore there is disposable syringe.But syringe in the prior art, structure is still complete available on completion of an injection, It cannot prevent the security risk of recycling and reusing completely.

Utility model content

In order to solve the problems in the existing technology, the purpose of this utility model is to provide a kind of children special-purpose is primary Property syringe.

To achieve the above object, the utility model adopts the following technical solutions:

A kind of children special-purpose disposable syringe, including needle tubing, syringe needle, piston and needle core, the needle core are located at the needle In pipe, the piston is located at the needle core front end, and opposite two latch closures are equipped on the needle tubing outer wall, and finger can be inserted into described In latch closure；Tongue is provided between the needle tubing and syringe needle, the tongue diameter is greater than the needle diameter and is less than the needle Pipe diameter；The piston nose is equipped with the convex block being adapted with the tongue, is equipped with and the syringe needle in the front end of the convex block Adaptable mandril, when the convex block is inserted into the tongue, between the convex block and tongue and the mandril and syringe needle it Between form the channel flowed out for medical fluid；Elastic slice and protrusion there are two being set on the needle interior wall, the elastic slice and raised size Be adapted, the elastic slice stress can be bent to the syringe needle direction, when the elastic slice be folded into it is parallel with the needle interior wall When, it can be completely embedded into the protrusion.

Compared with prior art, the utility model has the beneficial effects that:

1. the latch closure on needle tubing outer wall designs, convenient for make power in injection process, and avoid to make because of collision syringe from The problem of being slipped in hand；

2. the medical fluid in groove and syringe needle can be pushed into human body by the convex block and mandril in needle tubing together, reduce medicine The waste of object, it is ensured that drug effect；

3. due to the self-distruction structure for being provided with elastic slice and protrusion composition in needle tubing, it is therefore prevented that syringe is completed in injection After the case where can also retrodicting to reuse, prevented security risk.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the syringe of the utility model.

The structural schematic diagram of syringe needle, tongue, convex block and mandril when Fig. 2 is the injection completion of syringe shown in Fig. 1.

Description of symbols: needle tubing 1, syringe needle 2, piston 3, needle core 4, latch closure 5, tongue 6, convex block 7, mandril 8, elastic slice 9, convex Play 10, channel 11.

Specific embodiment

With reference to the accompanying drawing, the specific embodiment of utility model is described in detail.

As illustrated in fig. 1 and 2, a kind of children special-purpose disposable syringe, including needle tubing 1, syringe needle 2, piston 3 and needle core 4, institute It states needle core 4 to be located in the needle tubing 1, the piston 3 is located at 4 front end of needle core, is equipped on 1 outer surface of needle tubing opposite Two latch closures 5, finger can be inserted into the latch closure 5；Tongue 6 is provided between the needle tubing 1 and syringe needle 2, the tongue 6 is straight Diameter is greater than 2 diameter of syringe needle and is less than 1 diameter of needle tubing；3 front end of piston is equipped with the convex block being adapted with the tongue 6 7, the mandril 8 being adapted with the syringe needle 2, when the convex block 7 is inserted into the tongue 6, institute are equipped in the front end of the convex block 7 The channel 11 that formation is flowed out for medical fluid between convex block 7 and tongue 6 is stated, forms the channel flowed out for medical fluid between the mandril 8 and syringe needle 2 12；It is set on 1 inner wall of needle tubing there are two elastic slice 9 and protrusion 10, the elastic slice 9 is adapted with raised 10 sizes, the bullet 9 stress of piece can be bent to 2 direction of syringe needle, when the elastic slice 9 is folded into it is parallel with 1 inner wall of needle tubing when, can be complete It is embedded in described raised 10 entirely.

Through the above technical solutions, when in use, inserting a finger into latch closure 5, slowly needle core 4 is pushed to infuse medical fluid slowly Enter in human body.Even if children struggle, collision medical staff injects the hand of drug, and the finger being inserted into latch closure 5 also can steadily be grasped Firmly syringe, while latch closure 5 also provides the impetus for holding syringe, is more convenient for making power in injection process.With needle core 4 to The continuous propulsion in 2 direction of syringe needle, plunger forces elastic slice 9 bend elastic slice 9 to injection direction, have fully embedded into when elastic slice 9 is folded into When in protrusion 10, the medical fluid in protrusion 10 is also squeezed out completely；After piston 3 crosses elastic slice 9, elastic slice 9 is bounced from protrusion 10. When injection process proceeds to coda, needle core 4 is continued to press on, until the convex block 7 and mandril 8 of 3 front of piston are separately inserted tongue 6 In syringe needle 2, the channel 11 for medical fluid outflow is formd between convex block 7 and tongue 6 and between mandril 8 and syringe needle 2 at this time, this Remaining medical fluid has all been pushed into human body in medical fluid and syringe needle 2 and tongue 6 in sample needle tubing 1, reduces the waste of drug, It ensure that drug effect simultaneously.After the completion of injection, needle core 4 is retrodicted backward, since elastic slice 9 is bounced from protrusion 10,3 meeting of piston State before causing syringe that can not be restored to from use to pusher cannot be continued by the blocking of elastic slice 9, to be unable to recycling benefit With having prevented security risk completely.

Specific embodiment of the present utility model is described in detail in conjunction with attached drawing above, but the utility model is not It is limited to the detail of above embodiment, those skilled in the art are in the technical solution of the utility model range Interior made modification, addition or replacement, also belong to the protection scope of the utility model.

Claims (1)

1. a kind of children special-purpose disposable syringe, including needle tubing (1), syringe needle (2), piston (3) and needle core (4), the needle core (4) it is located in the needle tubing (1), the piston (3) is located at the needle core (4) front end, it is characterised in that: in the needle tubing (1) Outer wall is equipped with opposite two latch closures (5), and finger can be inserted into the latch closure (5)；Between the needle tubing (1) and syringe needle (2) It is provided with tongue (6), tongue (6) diameter is greater than the syringe needle (2) diameter and is less than the needle tubing (1) diameter；The piston (3) front end is equipped with the convex block (7) being adapted with the tongue (6), is equipped with and the syringe needle (2) in the front end of the convex block (7) Adaptable mandril (8), when the convex block (7) are inserted into tongue (6), between the convex block (7) and tongue (6) and institute State the channel (11) that formation is flowed out for medical fluid between mandril (8) and syringe needle (2)；Bullet there are two being set on the needle tubing (1) inner wall Piece (9) and protrusion (10), the elastic slice (9) and raised (10) size are adapted, and elastic slice (9) stress can be to the syringe needle (2) direction is bent, and when the elastic slice (9) is folded into parallel with the needle tubing (1) inner wall, can be completely embedded into the protrusion (10) in.