CN201189338Y

CN201189338Y - Disposable safe self-destruction syringe of high usage

Info

Publication number: CN201189338Y
Application number: CNU2008200476198U
Authority: CN
Inventors: 肖立安
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-12
Filing date: 2008-05-12
Publication date: 2009-02-04
Anticipated expiration: 2018-05-12

Abstract

The utility model discloses a disposable safe self-destroying injector with high utilization rate, consisting of a needle seat, a needle, a needle cylinder, a push rod and a rubber piston, wherein the rubber piston is arranged on the push rod, a push head is arranged inside the needle seat, the needle is screwed inside the needle seat by external threads, and the needle seat is clasped and connected inside the needle cylinder. The disposable safe self-destroying injector is characterized in that the top end of the push rod is provided with a clasp body clasped and connected with a taper head on the needle seat, the top end of the clasp body has a shape of mushroom and the middle part is provided with a hole. The utility model has the advantages of simple structure, low production cost, easy operation, safe use and convenient self-destruction, and the like, thereby facilitating the industrial production.

Description

The disposable safety self-breaking injector of high usage

Technical field

This utility model relates to a kind of self-destroyed syringe, especially after finishing, injection syringe needle all can be shunk to syringe cylinder, and the disposable safety self-breaking injector of the atomic high usage of medicinal liquid residual quantity.

Background technology

At present, when the patient is carried out liquid medicine injection, disposable syringe is widely used, and this is to preventing cross infection and prevent and cure diseases and played positive effect that people are provided with self-desttruction equipment on disposable syringe be exactly to reuse in order to stop artificial recovery.But, common self-destruction syringe is by the cavity syringe, syringe needle and the regular piston that is fitted in the syringe are formed, the cross infection that has caused though prevented to a certain extent to reuse, but after its maximum problem is injected exactly and is finished, syringe needle still be trapped in the outside, it not only is the carrying of syringe rubbish, destruction is made troubles, simultaneously because of stabbing the patient accidentally or the medical worker is often taken place, this the secondary cross infection of pathogenic bacteria just inevitably occurs, particularly be used to suffer from the syringe of serious patients with infectious diseases, especially the hidden danger that can not ignore for those.

In addition, the residual quantity in a lot of disposable self-destruction syringes is higher approximately by 50% than standard code, and this will waste medicinal liquid, and making does not have enough medicinal liquids to enter in patient's body, thereby can not bring into play its due effect.

Chinese patent 200420051683.5 discloses " disposable safety self-breaking injector ", solved safety problem preferably, also reach the purpose of self-destruction substantially, but there are three shortcomings, the one, the boss of its push rod is not easy to and the joining of the concave station of needle stand, and may damage syringe because of thrust is excessive during injection; The 2nd, its structure can stay bigger medicinal liquid residual quantity; The 3rd, syringe needle is fixed on the needle stand, and this just means the corresponding particular needle of needs, is unfavorable for the production of industrialization.

The utility model content

The purpose of this utility model is to provide a kind of Disposable, self-destroying syringe of the safe and reliable and high usage that the medicinal liquid residual quantity is atomic.

For achieving the above object, this utility model has adopted following technical scheme:

A kind of disposable safety self-breaking injector of high usage, form by needle stand, syringe needle, syringe, push rod and rubber piston, rubber piston is installed on the push rod, conehead is equipped with in needle stand inside, syringe needle is spun in the needle stand with outer silk, hub outer surface has two bulge loops, syringe correspondingly is provided with scrobicular ring, be interlockingly connected by bulge loop and scrobicular ring between needle stand and the syringe, the top of push rod be provided with needle stand on the button that is interlockingly connected of conehead, this button top is that mushroom, middle part are that ellipticity or square shape, centre have a hole.

The utlity model has following beneficial effect:

(1) push rod is provided with button, because button can snap onto on the conehead of needle stand push rod is pushed away forward after, this bottom that has just occupied syringe needle is large space very, reduced the residual quantity of medicinal liquid widely, thereby feasible has enough medicinal liquids to enter in patient's body; After injection finished, back pulling-pushing rod can all shrink needle stand to syringe together with syringe needle, can't reuse, and has really reached safety self-destruct.

(2) hub outer surface is provided with two bulge loops, can allow needle stand snap onto in the syringe of corresponding scrobicular ring, and does not need out the mould of syringe, and this structure is more conducive to shrink needle stand to syringe, is unlikely to make needle stand to be buckled and gets too tightly and can't bounce back; A conehead of 6: 100 is arranged on the needle stand, and it can join the syringe needle of any specification, and this just can assemble automatically, has reduced labor intensity.

In a word, the utlity model has advantages such as simple in structure, that cost of manufacture is low, easy to operate, safe in utilization, self-destruction is convenient, help industrialization production.

Description of drawings

Fig. 1 is this utility model syringe needle sketch map.

Fig. 2 is a needle stand sketch map of the present utility model.

Fig. 3 is a syringe sketch map of the present utility model.

Fig. 4 is a push rod sketch map of the present utility model.

Sketch map when Fig. 5 implements for this utility model.

Fig. 6 is a complete lattice sketch map of the present utility model.

Fig. 7 is the shrink sketch map of needle stand and syringe needle of the new shape of this practicality after the injection end.

Wherein:

1-needle stand, 2-syringe needle, 3-syringe, 4-push rod, 5-rubber piston, 6-conehead 7-outer silk 8-button 9-hole 10-bulge loop, 11-scrobicular ring

The specific embodiment

As shown in Figure 1, syringe needle 2 adopts standard needle, silk 7 outside its surface has; As shown in Figure 2, needle stand 1 outer surface is equipped with two bulge loops 10, and a conehead of 6: 100 6 is equipped with in inside; As shown in Figure 3, scrobicular ring 11 is equipped with in the upper end of syringe 3; As shown in Figure 4, rubber piston 5 is enclosed within on the push rod 4, and the top of push rod 4 is provided with a button 8, and these button 8 tops are that mushroom, middle part are that ellipticity or square shape, centre have a hole 9.

There is a hole 9 centre as shown in Figure 5, and the outer silk 7 on syringe needle 2 usefulness surface is spun in the needle stand 1, and the bulge loop 10 of needle stand 1 outer surface couples together with syringe 3 corresponding scrobicular rings 11, makes needle stand 1, syringe needle 2 and syringe 3 these three parts become one.

As shown in Figure 6, when injecting, need push rod 4 is advanced in the syringes 3, when button 8 passed the conehead 6 of needle stand 1, shrank with regard to being under pressure in hole 9, after button 8 passes through, its vertical mushroom opens wide, and snap onto on the conehead 6, and rubber piston 5 just just in time heads on syringe 3, at this moment, push rod 4 has just constituted the integral body of a syringe with needle stand 1, syringe needle 2 and syringe 3.

As shown in Figure 7, after injection finishes,, make push rod 4 and needle stand 1, syringe needle 2 become one because button 8 snaps onto on the conehead 6, when pulling-pushing rod 4 back, will be together with needle stand 1, syringe needle 2 retractions, syringe needle 2 is to have tensilely when being spun in the needle stand 1, these hour hands are straight, in the time of in syringe needle 2 retracts to syringe 3, tension force will disappear, one side syringe needle 2 will really have been realized safety, self-destruction to skewing.

Claims

1. the disposable safety self-breaking injector of a high usage, form by needle stand (1), syringe needle (2), syringe (3), push rod (4) and rubber piston (5), rubber piston (5) is installed on the push rod (4), conehead (6) is equipped with in needle stand (1) inside, syringe needle (2) is spun in the needle stand (1) with outer silk (7), needle stand (1) snaps onto in the syringe (3), it is characterized in that: the top of push rod (4) be provided with needle stand (1) on the button (8) that is interlockingly connected of conehead (6), this button (8) top is that mushroom, centre have a hole (9).

2. according to the disposable safety self-breaking injector of the high usage of claim 1, it is characterized in that: button (8) middle part is ellipticity or square shape.

3. according to the disposable safety self-breaking injector of the high usage of claim 2, it is characterized in that: needle stand (1) outer surface has two bulge loops (10), syringe (3) correspondingly is provided with scrobicular ring (11), is interlockingly connected by bulge loop (10) and scrobicular ring (11) between needle stand (1) and the syringe (3).