CN201379861Y

CN201379861Y - Disposable self-destruction injection syringe

Info

Publication number: CN201379861Y
Application number: CN200920021222U
Authority: CN
Inventors: 侯付霞; 赵玉美
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-20
Filing date: 2009-04-20
Publication date: 2010-01-13
Anticipated expiration: 2019-04-20

Abstract

A disposable self-destruction injection syringe belongs to the technical field of medical instruments. The syringe is characterized in that a needle stand is in threaded connection with a drain pipe at the front end of a needle cylinder; the front segment of a needle rod on the needle stand is exposed outside the needle stand, and the rear segment thereof passes through the inner chamber of the drain pipe and enters the interior of the needle cylinder; a liquid outlet hole communicated with the inner chamber of the needle bar is formed in a position near the inner wall of the front end of the needle cylinder; and a syringe holder adopts a hollow tube with the sealed front and rear ends as well as axial through holes formed on the tube wall, wherein the outer wall at the front end of the syringe holder is sleeved and fixed with a piston matched with the inner chamber of the needle cylinder, and a groove matched with the needle bar is formed on the outer wall of the front end surface of the syringe holder. With the advantages of simple structure and convenient operation, the utility model ensures that the thin wall inside the groove at the front end surface of the syringe holder is punctured by the needle point at the rear end of the needle bar after the injection, so that the inner chamber of the needle cylinder can not be sealed, and the injection syringe can not be reused. Therefore, the purpose of disposable self-destruction is achieved.

Description

Disposable self-destruction syringe

Technical field

This utility model belongs to technical field of medical instruments, specifically a kind of disposable self-destruction syringe.

Background technology

At present, the disposable syringe of hospital's use mostly is to be made of syringe needle, syringe, pintle, piston.Because this syringe self can not self-destruction, after injection finishes, covers needle guard on syringe needle usually, and syringe is abandoned; Or syringe needle is separated the back separate recycling with syringe.If there is not the discarded management system of strict pharmaceuticals, reclaimed by the lawless person in the society easily, after simple process, come into the market again, certainly will increase the chance of disease propagation.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and syringe can be destroyed the disposable self-destruction syringe that syringe can't be re-used automatically to provide a kind of injection to finish afterwards.

The purpose of this utility model is achieved in that this disposable self-destruction syringe is made up of shank, needle stand, syringe, piston, pintle, needle stand is being threaded on the drain pipe of syringe front end, shank leading portion above the needle stand is exposed at the needle stand outside, back segment passes the drain pipe inner chamber and enters syringe inside, is having the liquid outlet that communicates with the shank inner chamber near on the shank at syringe front inner wall place; Pintle is the hollow pipe that the tube wall of front and back sealing is provided with axially extending bore, and pintle front end outer wall suit is being fixed the piston that adapts with the syringe inner chamber, and the front end face outer wall is provided with and the corresponding groove of shank.

Advantage of the present utility model: simple in structure, easy to operate, after injecting liquid drug was finished, the needle point of shank rear end punctured the thin-walled in the pintle front end face groove, and the syringe inner chamber can not be sealed, and syringe can't re-use, and reaches the purpose of Disposable, self-destroying.

Description of drawings

Accompanying drawing is a structure cutaway view of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is described in further detail: this disposable self-destruction syringe is made up of shank 1, needle stand 2, syringe 3, piston 4, pintle 5, needle stand 2 is being threaded on the drain pipe of syringe 3 front ends, shank 1 leading portion above the needle stand 2 is exposed at needle stand 2 outsides, back segment passes the drain pipe inner chamber and enters syringe 3 inside, is having the liquid outlet 6 that communicates with shank 1 inner chamber near on the shank 1 at syringe 3 front inner wall places; The tube wall that pintle 5 seals for front and back is provided with the hollow pipe of axially extending bore 7, and pintle 5 front end outer wall suits are being fixed the piston 4 that adapts with syringe 3 inner chambers, and the front end face outer wall is provided with and shank 1 corresponding groove.

Claims

1, a kind of disposable self-destruction syringe, form by shank (1), needle stand (2), syringe (3), piston (4), pintle (5), it is characterized in that the needle stand (2) that is being threaded on the drain pipe of syringe (3) front end, shank (1) leading portion above the needle stand (2) is exposed at needle stand (2) outside, back segment passes the drain pipe inner chamber and enters syringe (3) inside, is having the liquid outlet (6) that communicates with shank (1) inner chamber near on the shank (1) at syringe (3) front inner wall place; The tube wall that pintle (5) seals for front and back is provided with the hollow pipe of axially extending bore (7), and pintle (5) front end outer wall suit is being fixed the piston (4) that adapts with syringe (3) inner chamber, and the front end face outer wall is provided with and the corresponding groove of shank (1).