CN212466753U

CN212466753U - Self-destruction piece for self-destruction type syringe

Info

Publication number: CN212466753U
Application number: CN202020114206.8U
Authority: CN
Inventors: 梅艳
Original assignee: Jiangsu Zhiyu Medical Equipment Co ltd
Current assignee: Jiangsu Zhiyu Medical Equipment Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2021-02-05
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a self-destruction piece for a self-destruction syringe, which comprises a syringe barrel, a push rod, a rubber plug and a self-destruction piece, wherein the push rod is arranged inside the rear end of the syringe barrel, the rubber plug is sleeved outside the front end of the push rod, the self-destruction piece is sleeved inside the front end of the rubber plug, the rear ends of the upper side and the lower side of the syringe barrel are provided with a pushing pulling plate, the front end of the syringe barrel is provided with a barrel cone head, the inner wall of the rear circumference of the barrel cone head is provided with a taper bayonet, the rubber plug is internally provided with a fixed fastening groove, the front end of the push rod is provided with a boss, when the push rod is pushed forwards, the normal injection is not influenced, and when the self-destruction piece is separated from the rubber plug, the joint of the rubber plug and the push rod generates a gap, the mutual closure between the rubber plug and the push head can be effectively prevented, the effect of destroying the sealing performance between, avoid used repeatedly, promote sanitary safety, make a guarantee to patient's health.

Description

Self-destruction piece for self-destruction type syringe

Technical Field

The utility model belongs to the technical field of the medicine is injected relatively, concretely relates to self-destruction piece for self-destruction formula syringe.

Background

Syringes are a common medical device. As early as the 15 th century, kathler, italian, proposed the principle of the syringe. Gas or liquid is primarily drawn or injected with a needle. Syringes may also be used for medical devices, containers, scientific instruments such as those used in chromatography, and through rubber septa for injection, while auto-disable syringes are disposable syringe products that prevent re-use after use.

The prior self-destruction syringe technology has the following problems: traditional self-destruction syringe relies on manual or mechanical strength to make the push rod can not take out from the cylinder thereby reach the auto-lock, perhaps the push rod of syringe can be inferred, finally reaches the purpose that prevents reuse, and these ways can both accomplish the self-destruction, but the self-destruction operation is comparatively troublesome, and is quite arduous simultaneously for the popularization nature of product receives certain influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-destruction piece for self-destruction syringe to solve the traditional self-destruction syringe self-destruction operation that proposes among the above-mentioned background art comparatively troublesome very strenuous problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a self-destruction piece for self-destruction formula syringe, includes injection barrel and push rod, the push rod is installed inside the rear end of injection barrel, the plug has been cup jointed to the front end outside of push rod, the self-destruction piece has been cup jointed to the front end inside of plug, the upper and lower both sides rear end of injection barrel is provided with the propulsion arm-tie, the front end of injection barrel is provided with the barrel conical head, be provided with the toper bayonet socket on the rear end circumference inner wall of barrel conical head, the inside of plug is provided with fixed catching groove, the front end of push rod is provided with the boss, be provided with the barb on the front end outer wall of self-destruction piece, the bottom of self-destruction piece is provided with the cavity.

Preferably, the inside of the rubber plug is in a hollow state, and the front end of the push rod is inserted into the fixed buckle slot of the rubber plug.

Preferably, the bosses are clamped at two sides in the fixed buckle groove and separate the push rod from the bottom of the rear end of the fixed buckle groove.

Preferably, the front end of the rubber plug is of an inwards-concave arc-shaped structure, and the rear end of the self-destruction piece is fixedly inserted into the front end of the fixed buckle slot in the rubber plug.

Preferably, the tapered bayonet is inclined forwardly and the barb is inclined rearwardly.

Preferably, the bottom of self-destruction piece is provided with the cavity, the cavity is convenient for automated production assembly and is compared with current self-destruction formula syringe technique, the utility model provides a self-destruction piece for self-destruction formula syringe possesses following beneficial effect:

1. the utility model discloses a set up the interior circular arc fluting that is sunken to the inboard at the front end of plug, make self-destruction piece can easily pack into the front end inside of plug from circular arc notch department, also can make things convenient for self-destruction piece to deviate from to the outboard simultaneously, push into to the barrel conical head at the front end of self-destruction piece after the injection is accomplished, and because of the extrusion, can shrink and slide the barb on the outer wall of self-destruction piece front end into the barrel conical head, because the cone bayonet socket incline direction on the inner wall of barrel conical head rear end is opposite with the incline direction of barb, make self-destruction piece block in the front end inside of injection barrel;

2. the utility model discloses the front end of push rod has set up the boss, the both sides of putting in fixed catching groove of boss card and the rear end bottom phase separation of push rod and fixed catching groove, make there be the gap between push rod and the fixed catching groove, when the push rod pulls back, can prevent effectively that it is closed each other between plug and the push rod, thereby can avoid taking place in the condition of pulling back in-process injection liquid medicine backward flow, play the effect of destroying leakproofness between plug and the push rod, thereby make the syringe can self-destruct after accomplishing the injection task, avoid used repeatedly, promote health safety, make the guarantee to patient's health.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic structural view of the self-destruction syringe of the present invention before use;

FIG. 2 is a schematic view of the self-destruction syringe of the present invention for drawing out liquid medicine;

FIG. 3 is a schematic view of the self-destructive injector of the present invention;

FIG. 4 is a schematic diagram of the detachment of the self-destruction element according to the present invention;

fig. 5 is a schematic structural view of an injection cylinder according to the present invention;

fig. 6 is a schematic structural view of the rubber plug provided by the present invention;

fig. 7 is a schematic view of the structure of the push rod provided by the present invention;

FIG. 8 is a schematic structural view of the self-destruction element of the present invention;

in the figure: 1. a cavity 2, a pushing pulling plate; 3. an injection cylinder; 4. a rubber plug; 5. a cylinder cone head; 6. a self-destructive element; 8. a push rod; 9. a conical bayonet; 10. fixing the fastening slot; 11. a boss; 12. and barbs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a self-destruction piece for a self-destruction syringe comprises a syringe barrel 3 and a push rod 8, wherein the push rod 8 is arranged inside the rear end of the syringe barrel 3, a rubber plug 4 is sleeved outside the front end of the push rod 8, the rubber plug 4 is in a hollow state, the front end of the push rod 7 is inserted into a fixed buckling groove 10 of the rubber plug 4, the rubber plug 4 plays a role of connection, a self-destruction piece 6 at the front end is fixedly arranged on the push rod 7, the self-destruction piece 6 can be destroyed by itself after an injection task is completed, the syringe is prevented from being reused and harming health, the self-destruction piece 6 is sleeved inside the front end of the rubber plug 4, the rear ends of the upper side and the lower side of the syringe barrel 3 are provided with pushing pull plates 2, the front end of the syringe barrel 3 is provided with a barrel cone head 5, the inner wall of the circumference of the rear end of the barrel cone head 5 is provided with a cone bayonet 9, the inside of the rubber plug 4 is provided with, inside the fixed front end that inserts fixed catching groove 10 in plug 4 of the rear end of self-destruction piece 6, self-destruction piece 6 is rubber materials, certain elasticity has, make self-destruction piece 6 can conveniently pack into the front end of plug 4 from inside sunken circular arc notch department inside, can make things convenient for self-destruction piece 6 to deviate from to the outside simultaneously, also guaranteed self-destruction piece 6 and plug 4 leakproofness before the injection, make and can absorb the liquid medicine through pulling push rod 8 in injection barrel 3.

A self-destruction piece for a self-destruction syringe comprises a boss 11 arranged at the front end of a push rod 8, the boss 11 is clamped at two sides in a fixed buckle groove 10 and separates the push rod 8 from the bottom of the rear end of the fixed buckle groove 10, a gap exists between the push rod 8 and the fixed buckle groove 10, when the push rod 8 is pulled back, mutual closing between a rubber plug 4 and the push rod 8 can be effectively prevented, the situation of injection liquid medicine backflow in the pulling back process can be avoided, the effect of destroying the sealing property between the rubber plug 4 and the push rod 8 is achieved, barbs 12 are arranged on the outer wall of the front end of the self-destruction piece 6, a conical bayonet 9 inclines forwards, the barbs 12 incline backwards, the conical bayonet 9 and the barbs 12 are of opposite conical design, the conical bayonet 9 can effectively clamp the barbs 12, the self-destruction piece 6 can be separated from the rubber plug 4 when the push rod 8 is pulled back, and self-destruction is completed, after the injection is finished, the self-destruction piece 6 is pushed into the cone head 5 of the barrel, and due to the extrusion effect, the barbs 12 on the outer wall of the front end of the self-destruction piece 6 can be contracted and slide into the cone head 5 of the barrel.

The utility model discloses a theory of operation and use flow: after the self-destruction syringe is installed, the self-destruction syringe is formed by combining an injection cylinder body 3, a rubber plug 4, a self-destruction piece 6 and a push rod 8, the principle is that after the self-destruction syringe is used for the first time, the self-destruction piece 6 is clamped by a conical bayonet 9 on a cylinder cone head 5, the sealing performance between the rubber plug 4 and the push rod 8 is destroyed, so that the self-destruction syringe can not extract liquid medicine again, thereby the self-destruction purpose is completed, when the self-destruction syringe is used, the liquid medicine can be extracted according to the using mode of a common syringe, the air in the injection cylinder body 3 is discharged, then the liquid medicine in the injection cylinder body 3 is injected into a patient, the push rod 8 is pushed to the bottom of the injection cylinder body 3, an agnail 12 on the outer wall at the front end of the self-destruction piece 6 passes through the conical bayonet 9, then the push rod 8 is pulled back, the self-destruction piece 6 is clamped by the conical, thereby being incapable of being used continuously and completing self-destruction.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-destruction piece for a self-destruction syringe comprises a syringe body (3) and a push rod (8), and is characterized in that: the utility model discloses a syringe, including injection barrel (3), push rod (8), plug (4) have been cup jointed to the front end outside of push rod (8), self-destruction piece (6) have been cup jointed to the front end inside of plug (4), the upper and lower both sides rear end of injection barrel (3) is provided with impels arm-tie (2), the front end of injection barrel (3) is provided with barrel conical head (5), be provided with on the rear end circumference inner wall of barrel conical head (5) toper bayonet socket (9), the inside of plug (4) is provided with fixed catching groove (10), the front end of push rod (8) is provided with boss (11), be provided with barb (12) on the front end outer wall of self-destruction piece (6), the bottom of self-destruction piece (6) is provided with cavity (1).

2. A self-destruct member for a self-destruct syringe according to claim 1, wherein: the inside of the rubber plug (4) is in a hollow state, and the front end of the push rod (8) is inserted into the fixed buckle groove (10) of the rubber plug (4).

3. A self-destruct member for a self-destruct syringe according to claim 1, wherein: the bosses (11) are clamped at two sides in the fixed buckle groove (10) and separate the push rod (8) from the bottom of the rear end of the fixed buckle groove (10).

4. A self-destruct member for a self-destruct syringe according to claim 1, wherein: the front end of the rubber plug (4) is of an inwards sunken arc-shaped structure, and the rear end of the self-destruction piece (6) is fixedly inserted into the front end of the fixed buckle groove (10) in the rubber plug (4).

5. A self-destruct member for a self-destruct syringe according to claim 1, wherein: the conical bayonets (9) are inclined forwards, and the barbs (12) are inclined backwards.

6. A self-destruct member for a self-destruct syringe according to claim 1, wherein: the cavity (1) is convenient for automatic production and assembly.