CN205252222U - Safe self -destroying vaccine injector - Google Patents

Abstract

The utility model discloses a safe self -destroying vaccine injector, including injection needle, urceolus and core bar, the one end inner wall that the urceolus is close to the syringe needle is equipped with the non return burr, the one end that the core bar is close to the syringe needle is equipped with the plug. This safe self -destroying vaccine injector simple structure, convenient to use, the self -destruction function is perfect, and unable reduction can effectively avoid used repeatedly to lead to cross infection's problem after the use. This syringe does not have structure complicated very much simultaneously, and low in production cost is fit for large -scale production.

Description

A kind of safe self-destruction type vaccine injector

Technical field

The utility model relates to the apparatus that medium is input to human body or animal body, is specifically related to a kind of safety self-destructing epidemic diseaseSeedling syringe.

Background technology

Have pathogenic bacterin preparation be injected into healthy human body or animal with it after, can make reciever obtain opposing a certainThe immunity that specified disease is former, this is due to the identification of immune system to exotic, carries out screening and the manufacture of antibody, to produceResist the process of the antibody of this cause of disease or similar cause of disease, and then make to be subject to injector to there is stronger resistivity to this disease.

Current modal vaccine kind comprise diphtheria, lockjaw, pertussis, polio, Type B haemophilus influenzae,Hepatitis B, tuberculosis (are prevented BCG vaccine effect lungy not obtain yet educational circles and are unanimously admitted, the therefore U.S., Belgium and lotusOrchid does not all adopt this vaccine. ), Ma rash, German measles, mumps etc. Because the disease that need to take precautions against with vaccine is very many, because ofThese vaccine injection articles for use become one of topmost medical running stores.

Be reused and cause the malpractices such as cross-infection for fear of syringe, generally using now disposable noteEmitter is carried out the injection of the medicaments such as vaccine, but existing disposable sterilized injector structurally cannot be realized self-destroying function,After finishing using, its 26S Proteasome Structure and Function is still intact, need to carry out conscious processing to it artificially, therefore inevitableCan there is the problem being repeatedly used in ground.

Utility model content

For fear of the problems referred to above of the prior art, syringe its function after being once used to complete is lost,The utility model provides a kind of safe self-destruction type vaccine injector.

The safe self-destruction type vaccine injector that the utility model provides, comprises injection needle, urceolus and core bar, described urceolusOne end inwall near syringe needle is provided with non-return burr, and described core bar is provided with plug near one end of syringe needle.

By coordinating of plug and non-return burr, before not using, non-return burr part does not contact with plug, when syringeWhen core bar is shifted onto and completed drug injection behind top, plug is stuck in non-return embossment, cannot return, and then lose it and reuseValue, realize self-destruction.

Preferably, in above-mentioned safe self-destruction type vaccine injector, described non-return burr is for falling detent projection or arc convex.Due to the convenience that need to consider that core bar advances, what therefore the height of non-return burr can not design is too high, only need slightly protrudingCan, like this, if strengthen the non-return effect of non-return burr, preferably non-return burr is designed to down to detent projection or arc is protrudingRise, wherein with the best of falling detent projection.

Preferably, in above-mentioned safe self-destruction type vaccine injector, described plug periphery is provided with and matches with non-return burrDetent projection or arc convex. In order to coordinate the structure of non-return burr, strengthen non-return effect, the peripheral shape of plug preferably with onlyReturn burr and coordinate, be designed to the arc convex engaged with non-return burr or detent projection.

Preferably, in above-mentioned safe self-destruction type vaccine injector, described non-return burr along the axial length of urceolus 0.5 ~1cm. Consider production cost and do not affect self-destroying function, the length of this non-return burr needn't be long, within the scope of 0.5 ~ 1cm, isCan.

Compared with prior art, the utlity model has following beneficial effect:

Safe self-destruction type vaccine injector of the present utility model, simple in structure, easy to use, self-destroying function is perfect, usesAfter cannot reduce, can effectively avoid reusing the problem that causes cross-infection. This syringe is complicated especially simultaneouslyStructure, production cost is low, is applicable to large-scale production.

Brief description of the drawings

Fig. 1 is the structural representation of safe self-destruction type vaccine injector provided by the utility model.

Reference numeral:

1. syringe needle 2. urceolus 3. core bar 4. plug 5. non-return burr 6. pinhead sleeves.

Detailed description of the invention

In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with accompanying drawing and concrete enforcementThe utility model is described in further detail for mode.

Please refer to Fig. 1, safe self-destruction type vaccine injector of the present utility model, comprises needle for injection 1, urceolus 2 and coreBar 3, described urceolus 2 is provided with non-return burr 5 near one end inwall of syringe needle 1, and described core bar 3 is provided with plug near one end of syringe needle4. Non-return burr 5 along the axial length of urceolus at 0.5 ~ 1cm. Non-return burr 5 is for falling detent projection or arc convex. Due to needsConsider the convenience that core bar advances, what therefore the height of non-return burr 5 can not design is too high, only needs projection slightly, plug 4Periphery is provided with the detent projection or the arc convex that match with non-return burr 5, strengthens non-return effect.

When production and assembly, the plug 4 of safe self-destruction type vaccine injector does not contact with non-return burr 5, in the time using, passes throughSyringe needle 1 is drawn into after vaccine injection liquid, and syringe needle is slowly advanced to core bar 3 upward, extrudes aseptic gas wherein, in injection process, works asWhen the core bar of syringe is shifted onto and completed drug injection behind top, plug is stuck in non-return embossment, cannot return, and then lose itThe value reusing, realizes self-destruction.

It should be pointed out that for those skilled in the art, do not depart from the utility model principle beforePut, can also carry out some improvement and modification to the utility model, these improvement and modification also fall into the utility model rightIn the protection domain requiring.

Claims (1)

1. a safe self-destruction type vaccine injector, comprises injection needle, urceolus and core bar, it is characterized in that, described urceolus leans onOne end inwall of nearly syringe needle is provided with non-return burr, and described core bar is provided with plug near one end of syringe needle; Described non-return burr is for fallingDetent projection; Described plug periphery is provided with the detent projection matching with non-return burr; Described non-return burr is axial along urceolusLength is 0.5cm.