CN211751546U

CN211751546U - BCG vaccine injector

Info

Publication number: CN211751546U
Application number: CN201922491012.XU
Authority: CN
Inventors: 罗琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-27
Anticipated expiration: 2029-12-31

Abstract

The application relates to a BCG vaccine injector, which belongs to the field of medical appliances and comprises a needle cylinder, wherein one end of the needle cylinder, which is provided with a liquid outlet, is provided with a notch; the rubber plug is provided with a rigid lug on one side close to the liquid outlet, and the protruding height of the rigid lug is greater than the recessed height of the notch; the core bar is connected with the rubber plug and is arranged in the needle cylinder in a sliding manner, and the core bar can push the rubber plug to move so that the rigid lug on the rubber plug is inserted into the notch to damage the needle cylinder; through set up the notch on the cylinder and set up the rigidity lug on the plug and can make the BCG vaccine syringe finish the back rigidity lug and can insert in the notch and destroy the cylinder at the injection, avoid recycling of syringe, can effectively avoid the propagation of disease, prevent human cross infection, effectively guarantee injection safety, in addition, it has simple structure simultaneously, and is with low costs, easily production and manufacturing's advantage.

Description

BCG vaccine injector

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a BCG vaccine injector.

Background

BCG vaccine is used for preventing tuberculosis, and inoculated BCG vaccine can make organism generate specific immunity to Mycobacterium tuberculosis, can prevent the propagation and dissemination of said pathogen in human body, and can prevent tuberculous meningitis and millet tuberculosis. At present, a syringe is generally used for inoculating the bcg vaccine for injection, the syringe is generally a disposable device, the bcg vaccine is still put into a garbage can after the injection is finished, the medical garbage is generally not recycled because harmful bacteria such as germs exist in the medical garbage, but the black heart manufacturers are not prevented from recycling the medical garbage such as the syringe in order to earn money, the existing bcg vaccine syringe is still intact after the use so as to be reused by the black heart manufacturers, the germs carried by the syringe are spread widely, the human health is seriously harmed, and a new bcg vaccine syringe is necessary to be designed in order to prevent the disease spread phenomenon caused by the reuse of the bcg vaccine syringe.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

The application is in order to solve present syringe and undamaged the appearance after finishing using and reuse, and then lead to the disease to be propagated greatly, seriously endanger the problem of human health, so, design a BCG vaccine syringe, it specifically is:

a bcg syringe comprising:

the needle cylinder is provided with a notch at one end with a liquid outlet;

the rubber plug is provided with a rigid lug on one side close to the liquid outlet, and the protruding height of the rigid lug is greater than the recessed height of the notch;

the core bar is connected with the rubber plug and is arranged in the needle cylinder in a sliding manner, and the core bar can push the rubber plug to move so that the rigid lug on the rubber plug is inserted into the notch to damage the needle cylinder.

Preferably, the thickness of the liquid outlet end of the needle cylinder is smaller than that of the side wall of the needle cylinder.

In one embodiment, the notch is concave toward the outside of the barrel.

Preferably, the recesses and rigid projections are frustoconical in shape.

Preferably, the notch is located off-center of the end of the barrel having the liquid outlet.

In one embodiment, the notch is concave toward the inside of the barrel.

Preferably, the recess is frustoconical and the rigid projection is conical.

Preferably, the notch is arranged in the center of one end of the needle cylinder with the liquid outlet, and the rigid lug is arranged in the center of the rubber plug.

Preferably, the rubber plug is provided with an annular part along the circumferential edge of the rubber plug in a protruding mode, and the protruding height of the annular part is equal to the recessed height of the notch.

Preferably, the wall thickness of the recess is smaller than the wall thickness of the needle cylinder at the end with the liquid outlet.

The utility model discloses a set up the notch on the cylinder and set up the rigidity lug on the plug and can make the BCG vaccine syringe finish the injection back rigidity lug can insert in the notch and destroy the cylinder, avoid recycling of syringe, can effectively avoid the propagation of disease, prevent human cross infection, effectively guarantee injection safety, in addition, it has simple structure simultaneously, and is with low costs, easily produces the advantage of manufacturing.

Drawings

FIG. 1 is a perspective view of embodiment 1;

fig. 2 is a perspective view of embodiment 2.

In the figure, 1, a syringe, 101, a press hand end, 102, a liquid outlet, 103, a notch, 2, a core rod, 3, a rubber plug, 301, a rigid bump, 302, a ring part, 4 and a needle.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments with reference to the accompanying drawings.

Example 1

As shown in figure 1, a BCG vaccine injector comprises a needle cylinder 1, a rubber plug 3 and a core bar 2, wherein one end of the needle cylinder 1 is a pressing hand end 101, the other end is provided with a liquid outlet 102, a needle 4 can be arranged on the liquid outlet 102 of the syringe 1, in addition, a notch 103 is arranged at one end of the syringe 1 with the liquid outlet 102, meanwhile, a rigid lug 301 is arranged at one side of the rubber plug 3 close to the liquid outlet 102, the rigid lug 301 is integrally formed with the core bar 2, the projection height of the rigid lug 301 is greater than the depression height of the notch 103, the core bar 2 is connected with the rubber plug 3 and is arranged in the needle cylinder 1 in a sliding way, the core bar 2 can push the rubber plug 3 to move, so that the rigid lug 301 on the rubber plug 3 is inserted into the notch 103 to damage the needle cylinder 1, the technical scheme can damage the needle cylinder 1 after injecting the BCG vaccine, thereby avoiding the reutilization of the injector, preventing cross infection and effectively ensuring the injection safety of human beings.

Further, in order to reduce the force with which the rigid projection 301 damages the notch 103 of the cylinder 1, and to make the damage easier, the thickness of the end of the cylinder 1 having the liquid outlet 102 is smaller than the thickness of the sidewall of the cylinder 1.

In the present embodiment, the notch 103 is recessed to the outside of the cylinder 1, which can reduce the residual amount of the medical fluid.

Further, in order to further facilitate the damage of the syringe 1 after the bcg injection, the shape of the recess 103 and the rigid protrusion 301 is truncated cone, and the minimum diameter of the rigid protrusion 301 is smaller than the minimum diameter of the recess 103, so that it can be ensured that the rigid protrusion 301 can break the recess 103 by penetrating through the recess 103.

Furthermore, in order to leave a space for the liquid outlet, the notch 103 is arranged to be deviated from the center of the end of the needle cylinder 1 with the liquid outlet 102, the needle 4 is also arranged to be deviated from the center of the end of the needle cylinder 1 with the liquid outlet 102, and the positions of the liquid outlet 102 and the notch 103 are symmetrical relative to the central axis of the needle cylinder 1, so that the distance between the liquid outlet 102 and the notch 103 is farthest, the notch 103 is guaranteed not to influence the use of the liquid outlet 102 when being damaged, and the use of the needle 4 is not influenced.

Further, in order to facilitate the breaking of the recess 103 by the rigid projection 301, the wall thickness of the recess 103 is smaller than that of the end of the cylinder 1 having the liquid outlet 102.

Example 2

The present embodiment is a change made to the notch 103 in embodiment 1, specifically, as shown in fig. 2, in the present embodiment, the notch 103 is recessed toward the inner side of the syringe 1, and meanwhile, the notch 103 is also configured as a circular truncated cone, the rigid protrusion 301 is configured as a conical shape, the notch 103 is configured at the center of the syringe 1 having the liquid outlet 102, and the rigid protrusion 301 is configured at the center of the rubber plug 3, and in the present embodiment, the rigid protrusion 301 and the core rod 2 are also integrally configured, so that the core rod 2 pushes the rubber plug 3 to inject the bcg into the human body, and when the injection is completed, the rigid protrusion 301 just breaks the notch 103, so that the injector cannot be reused.

Furthermore, in order to facilitate the destruction of the syringe 1, the notch 103 is truncated cone-shaped, and the rigid protrusion 301 is conical, which is more beneficial to the penetration of the syringe 1 and saves labor.

Further, in order to reduce the residual bcg in the syringe 1, the rubber plug 3 is convexly provided with an annular part 302 along the circumferential edge thereof, the protruded height of the annular part 302 is equal to the recessed height of the notch 103, so that when the rigid projection 301 is about to contact the notch 103, the liquid level of the bcg inside is below the top end of the notch 103, and when the rigid projection 301 is inserted into the notch 103 to damage the syringe 1, the annular part 302 protruded from the edge of the rubber plug 3 completely injects the residual bcg.

Further, in this embodiment, the wall thickness of the recess 103 is also smaller than the wall thickness of the end of the barrel 1 having the liquid outlet 102, so that the barrel 1 is more easily broken.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. A bcg injector, comprising:

the needle cylinder is provided with a notch at one end with a liquid outlet;

a rigid lug is arranged on one side of the rubber plug close to the liquid outlet, and the protruding height of the rigid lug is greater than the recessed height of the notch;

2. The bcg injector as claimed in claim 1, wherein the thickness of the end of the cylinder where the liquid outlet is installed is smaller than the thickness of the side wall of the cylinder.

3. The bcg injector of claim 1, wherein said notch is recessed outwardly of said barrel.

4. The BCG injector of claim 3, wherein said notches and rigid protrusions are truncated cones in shape.

5. The bcg injector of claim 4, wherein said notch is located off-center of an end of said barrel having said outlet port.

6. The bcg injector of claim 1, wherein said notch is recessed inwardly of said barrel.

7. The BCG injector of claim 6, wherein said notch is truncated cone shaped and said rigid protrusion is conical shaped.

8. The bcg syringe of claim 7, wherein the notch is disposed at the center of the end of the syringe having the liquid outlet, and the rigid protrusion is disposed at the center of the rubber plug.

9. The bcg injector as in claim 8, wherein said rubber plug is provided with a ring portion protruding along its circumferential edge, and the height of said ring portion is equal to the height of said recess.

10. The bcg injector of any one of claims 1-9, wherein a wall thickness at the recess is less than a wall thickness at an end of the barrel having the liquid outlet.