CN2885293Y - Self-destruction type syringe - Google Patents

Abstract

The utility model comprising a syringe needle, an injection tube, an injection propeller and a rubber seal joint, the upper injection propeller point-contact the draw-in gear, when the injection propeller reach the uppermost of the injector tube wall, the draw-in gear will be blocked in the draw-in gear neck which is provided in the upper injection tube, the draw-in gear will be blocked and raptures from the injection propeller when the injection propeller is pull-out, thereby, the tube line is blocked and the injector is destroyed, meanwhile the needle is blocked on the injection tube. The utility model has advantages that the injection can be self-destructed after once use, disposable of the injector can be realized and the cross-infection can be avoided.

Description

Self-destructive syringe

Technical field

This utility model relates to a kind of syringe, in particular, relates to a kind of disposable syringe.

Background technology

Disposable syringe is used the social problem that becomes a sternness repeatedly at present, though country forbids strictly, still is difficult to effectively stop the lawless person with the disposable syringe recycling.

Summary of the invention

The purpose of this utility model is the shortcoming that overcomes existing product, and a kind of self-destructive syringe is provided.

In order to reach the purpose of foregoing invention, this utility model comprises syringe needle, syringe tube, syringe and pushes away post, rubber packing head, the upper point that described syringe pushes away post is connected to dop, and when syringe pushes away the uppermost position that post arrives injector wall, dop will be stuck on the draw-in groove that syringe tube top is provided with, when withdrawing from syringe and push away post, dop is stuck, and pushes away the post fracture with syringe, thus blocking pipeline, make syringe damage, syringe needle also is connected on the syringe tube simultaneously.

By the syringe that technique scheme realizes, can make syringe through once using the back just to damage voluntarily, really realize the disposable use of syringe, stop the appearance of situation such as cross infection.

Description of drawings

Axial plane section of structure in Fig. 1 self-destructive syringe.

Fig. 2 self-destructive syringe uses axial plane section of structure in the back.

Fig. 3 self-destructive syringe syringe pushes away axial plane section of structure in the post.

Specific implementation method

Below in conjunction with drawings and Examples this utility model is described in detail.

Comprise syringe needle 1, syringe tube 2, syringe at this utility model and push away post 3, rubber packing head 4, described syringe tube top is respectively equipped with syringe needle draw-in groove 8, dop draw-in groove 6; Syringe needle 1 is connected on the head syringe needle draw-in groove 8 of syringe tube 2; The upper point that described syringe pushes away post 3 is connected to dop 5, and the centre of dop 5 is provided with vacancy 7; Vacancy is left at described rubber packing head 4 centers, rubber packing head 4 passes dop 5 and is socketed in syringe and pushes away post 3 tops, when syringe pushes away post arrives syringe tube along the tube wall of syringe tube 2 uppermost position, dop 5 is easy to generate elastic deformation because its middle part is provided with vacancy 7, snaps in dop draw-in groove 6, pass through elastic return simultaneously, dop 5 just can be stuck on the dop draw-in groove, when withdrawing from syringe and push away post 3, because dop 5 has been stuck, and it to push away post 3 with syringe be to be connected, be subjected to external force slightly, just can rupture, thus blocking pipeline, make syringe damage, Fig. 2 is exactly that self-destructive syringe uses axial plane section of structure in the back, comparison diagram 1, the position of Fig. 2 dop 5, as can be seen, after this utility model uses, dop 5 is stuck on syringe tube 2, stops up its pipeline, reaches the purpose of damaging voluntarily after the use.

Claims (2)

1. self-destructive syringe comprises syringe needle (1), syringe tube (2), syringe and pushes away post (3), rubber packing head (4), and it is characterized in that: described syringe tube top is respectively equipped with syringe needle draw-in groove (8), dop draw-in groove (6); The upper point that described syringe pushes away post (3) is connected to dop (5).

2. self-destructive syringe according to claim 1, its feature also is: be provided with vacancy (7) in the middle of the described dop (5).

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