CN201596199U

CN201596199U - Medical disposable self-destruction syringe

Info

Publication number: CN201596199U
Application number: CN2009203511802U
Authority: CN
Inventors: 刘云昌
Original assignee: JIANGYIN MEDICAL DEVICES CO Ltd
Current assignee: JIANGYIN MEDICAL DEVICES CO Ltd
Priority date: 2009-12-21
Filing date: 2009-12-21
Publication date: 2010-10-06
Anticipated expiration: 2019-12-21

Abstract

The utility model relates to a medical disposable self-destruction syringe, which consists of a core bar (1), a syringe body (2) and a piston (3), wherein the piston (3) is sleeved on the core bar (1), and the core bar (1) is inserted in the syringe body (2). The medical disposable self-destruction syringe is characterized in that a lock cylinder (1.1) is arranged at the front end of the core bar (1), a piston fixing base (1.2) is arranged at the rear of the lock cylinder (1.1), the lock cylinder (1.1) is in point contact with the piston fixing base (1.2), an injection nozzle (2.1) is arranged at the front end of the syringe body (2), and a flange (2.11) is arranged in an inner cavity at the rear end of the injection nozzle (2.1). The medical disposable self-destruction syringe is convenient in use and can avoid being used repeatedly.

Description

Medical disposable auto-disable syringe

Technical field:

This utility model relates to a kind of injector for medical purpose, particularly relates to a kind of medical disposable auto-disable syringe.Belong to technical field of medical instruments.

Background technology:

Used in the market injector for medical purpose is still based on the traditional type syringe, conventional syringe is because repeated use has increased a lot of unsafe factors, thereby a lot of type self-destroyed patented technology and product have also occurred, but always can not be promoted as soon as possible and be used because there are some places not too to improve.A kind of self-destruction syringe as patent 200520074814 announcements, though can reach self-destroying function, but need stop secondary and reuse after the use core bar being retracted just can reach by the snap slot on the core bar that manually fractures, thereby say on the stricti jurise, in use do not reach the effect of self-destruction, and, increased medical work personnel's workload because of need increase operation bidirectional, especially when seeking medical advice the peak period, incured loss through delay injection efficiency greatly.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of easy to use and can avoid reusable medical disposable auto-disable syringe.

The purpose of this utility model is achieved in that a kind of medical disposable auto-disable syringe, mainly form by core bar, cylindrical shell and piston, described piston bush places on the core bar, core bar is inserted in the cylindrical shell, described core bar front end is provided with tapered end, described tapered end back is provided with the piston holder, described tapered end is that point contacts with the piston holder, described barrel front end is provided with injection nozzle, described injection nozzle rear end inner chamber is provided with flange, and the flange that the tapered end of core bar front end inserts injection nozzle rear end inner chamber blocks sealed mutually.

A kind of medical disposable auto-disable syringe of this utility model radially offers many open slots on the described flange, open slot is divided into some locking plates with flange.

The utlity model has following beneficial effect:

When injector to inject is finished, the flange of the tapered end of core bar front end and injection nozzle inside blocks sealed mutually, simultaneously because tapered end is that point contacts with the piston holder, pull back and just can interrupt tapered end, thereby make syringe piston can not form vacuum, therefore stopped the reusable probability of secondary, and do not needed extra operation, it is extremely convenient to use.

A kind of medical disposable auto-disable syringe of this utility model radially offers many open slots on the described flange, open slot is divided into some locking plates with flange, and the tapered end of locking plate and core bar front end blocks sealed mutually.In the liquid medicine injection process, core bar front end tapered end and injection nozzle locking plate carry out when sealed lighter; Medicinal liquid can pass through the open slot between locking plate, the residual quantity of medicinal liquid in the time of can reducing injection like this, and quality stability and safety are higher.

Description of drawings:

Fig. 1 is a population structure sketch map of the present utility model.

Fig. 2 is STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 3 is this utility model I enlarged drawing.

Fig. 4 is this utility model II enlarged drawing.

Fig. 5 is the vertical view of Fig. 1.

Cooperation sketch map when Fig. 6 finishes for this utility model injection.

Sketch map when Fig. 7 retracts core bar for this utility model injection after finishing.

Fig. 8 is this utility model injection finishing back self-destruction effect sketch map.

The specific embodiment:

As Fig. 1～2, this utility model is a kind of medical disposable auto-disable syringe, mainly form by core bar 1, cylindrical shell 2 and piston 3, described piston 3 is placed on the core bar 1, core bar 1 is inserted in the cylindrical shell 2, and described core bar 1 front end is provided with tapered end 1.1, and described tapered end 1.1 back are provided with piston holder 1.2, described tapered end 1.1 contacts for point with piston holder 1.2, as shown in Figure 3;

Referring to Fig. 4, described cylindrical shell 2 front ends are provided with injection nozzle 2.1, and described injection nozzle 2.1 rear end inner chambers are provided with flange 2.1.1, radially offer many open slot 2.1.2 on the flange 2.1.1, open slot 2.1.2 is divided into some locking plate 2.1.3 with flange 2.1, as shown in Figure 5.

Referring to Fig. 6 and Fig. 7, when injector to inject was finished, the flange that the tapered end of core bar front end inserts injection nozzle rear end inner chamber blocked sealed mutually.

Referring to Fig. 8, this moment, pulling back just to make tapered end and piston holder rupture, thereby reaches the self-destruction effect, has stopped reusing of syringe because tapered end contacts for point with the piston holder.

Claims

1. medical disposable auto-disable syringe, mainly by core bar (1), cylindrical shell (2) and piston (3) are formed, described piston (3) is placed on the core bar (1), core bar (1) is inserted in the cylindrical shell (2), it is characterized in that: described core bar (1) front end is provided with tapered end (1.1), described tapered end (1.1) back is provided with piston holder (1.2), described tapered end (1.1) is that point contacts with piston holder (1.2), described cylindrical shell (2) front end is provided with injection nozzle (2.1), described injection nozzle (2.1) rear end inner chamber is provided with flange (2.1.1), and the flange (2.1.1) that the tapered end of core bar front end (1.1) inserts injection nozzle (2.1) rear end inner chamber blocks sealed mutually.

2. a kind of medical disposable auto-disable syringe according to claim 1 is characterized in that: radially offer many open slots (2.1.2) on the described flange (2.1.1), open slot (2.1.2) is divided into some locking plates (2.1.3) with flange (2.1).