CN218458418U

CN218458418U - Novel pre-filled syringe

Info

Publication number: CN218458418U
Application number: CN202120484685.7U
Authority: CN
Inventors: 刘杰; 罗伟苑; 王晴晴; 祁红林; 兰柳琴
Original assignee: Zhuhai Rundu Pharmaceutical Co Ltd
Current assignee: Zhuhai Rundu Pharmaceutical Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2023-02-10
Anticipated expiration: 2031-03-12

Abstract

The utility model provides a novel pre-filled syringe, which comprises a syringe tube body, a plug part, a fixed column, a stress surface, a column hole, a supporting rod, a pushing part and a push rod, wherein the bottom of the supporting rod is provided with a cone; a column hole is formed in the middle of the fixed column, the height of the column hole is greater than that of a syringe tube body (a blank part of the syringe tube body in the figure) containing the injection, and the height of the column hole is greater than that of the supporting rod; the height of the column hole is larger than the distance between the plug part and the bottom of the syringe tube body. This novel pre-filled syringe is easy operation not only, can also prevent that the push rod from appearing pushing or the error of pulling out in the syringe body in the transportation, causes the waste of medicine in the syringe, reduces the breakage rate in the transportation.

Description

Novel pre-filled syringe

Technical Field

The invention belongs to the field of medical appliances, and particularly relates to a novel prefilled syringe.

Background

The prefilled syringe is a new product of 'medicine and apparatus in one' which is prepared by filling medicine liquid into a sterilized syringe in advance so as to facilitate the injection of medicine by medical care personnel or patients at any time. Over 50 drugs currently are available in the prefilled syringe type, including antithrombotic drugs, vaccines, blood stimulants, interferons, rheumatoid arthritis, and the like. Prefilled syringes have many advantages: the use is easy; dosage errors of medical staff during dispensing can be reduced; avoid the situation of uneven concentration when the liquid medicine is extracted from the small bottle, thereby ensuring the curative effect. Meanwhile, the compliance of a patient can be improved, the sterility is ensured, and the possibility of pollution in the injection process is reduced.

From the logistics and supply chain, prefilled syringes are easy to handle, store, transport. Because it has lighter weight and occupies less space, the transportation cost is low. The prefilled syringe occupies a small shelf space in distributors and pharmacies, is easy to store, and can help reduce costs.

When the prefilled syringe is transported or used by medical staff, the push rod is pushed into or pulled out of the syringe tube body by external force, so that waste of medicine in the prefilled syringe is caused, unnecessary loss is caused, and the breakage rate in the transportation process or the use process can be obviously increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a novel prefilled syringe, which can prevent a push rod from being pushed into or pulled out of a syringe tube during transportation or use, thereby preventing unnecessary waste and reducing the breakage rate during transportation or use of the prefilled syringe.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a novel pre-filled syringe comprises a syringe tube body, a plug part, a fixed column, a stress surface, a column hole, a supporting rod, a pushing part and a push rod, wherein the syringe tube body is tightly attached to the plug part; the syringe tube body is fixedly connected with the fixing column; the syringe tube body is fixedly connected with the stress surface; the plug part is movably connected with the push rod; the pushing part is fixedly connected with the push rod; the pushing part is fixedly connected with the supporting rod.

Furthermore, a column hole is formed in the middle of the fixing column; the diameter of the supporting rod is slightly smaller than that of the column hole.

Further, the height of the post hole is greater than the height of the support rod; the height of the column hole is larger than the distance between the plug part and the bottom of the syringe tube body.

Furthermore, a blocking device is arranged at the connecting end of the column hole and the supporting rod, and a device matched with the blocking device is arranged on the surface of the supporting rod.

More closely, the blocking means is one of a bar and two symmetrical convex surfaces.

Furthermore, the lower end of the supporting rod is provided with a cone; the height of the column hole is larger than the height of the supporting rod and the cone; and a shelter is arranged between the column hole and the cone.

Furthermore, the material of the shielding object is aluminum foil.

Drawings

FIG. 1 is a front view of the novel prefilled syringe of example 1;

fig. 2 is an enlarged view of the novel prefilled syringe post hole 5, the blocking device 10 and the fixing post 7 in embodiment 1;

fig. 3 is an enlarged view of the novel prefilled syringe post hole 5, the blocking device 10 and the fixing post 7 in embodiment 1;

FIG. 4 is a front view of the novel prefilled syringe of embodiment 2;

fig. 5 is a front view of the novel prefilled syringe of the embodiment after injection.

1-syringe tube body; 2-a plug portion; 3-fixing the column; 4-stress surface; 5-column pore; 6-vertebral body; 7-a support bar; 8-a pushing part; 9-a push rod; 10-a blocking device; 11-shade.

Detailed Description

Example 1

As shown in fig. 1 to 3, a novel prefilled syringe comprises a syringe tube 1, a plug 2, a fixed column 3, a stress surface 4, a column hole 5, a support rod 7, a pushing part 8 and a push rod 9, wherein the syringe tube 1 is tightly attached to the plug 2; the syringe tube body 1 is fixedly connected with the fixed column 3; the syringe tube body 1 is fixedly connected with the stress surface 4; the plug part 2 is movably linked with the push rod 9; the pushing part 8 is fixedly connected with the push rod 9; the pushing part 8 is fixedly connected with the supporting rod 7, and the fixing column 3 is used for preventing the push rod from being pulled out of the syringe body in an accidental situation to pollute the medicine.

A column hole 5 is formed in the middle of the fixed column 3; the diameter of the support rod 7 is slightly smaller than that of the column hole 5, so that the support rod 7 can be smoothly pushed into the column hole 5 when the prefilled syringe is used.

The height of the column hole 5 is larger than that of the support rod 7, and the height of the column hole 5 is larger than the distance between the plug part 2 and the bottom of the syringe tube body 1, so that the medicine in the prefilled syringe can be completely injected, and the medicine is prevented from being wasted; the end of the column hole 5 connected with the support rod 7 is provided with a blocking device 10, the surface of the support rod 7 is provided with a device matched with the blocking device 10, so as to prevent the push rod from being pushed into the syringe tube under the unexpected condition when the prefilled syringe is not used, and the medicine waste is caused. The blocking device (10) is one of a horizontal bar and two symmetrical convex surfaces.

After the outer package of the prefilled syringe is disassembled, the device on the support rod 7 of the prefilled syringe matching with the blocking device 10 and the blocking device 10 on the column hole are in a dislocation state, and after the medical staff aligns the device on the support rod 7 of the prefilled syringe matching with the blocking device 10 and the blocking device 10 on the column hole, the injection for the patient is started.

Example 2

As shown in fig. 4, a novel prefilled syringe comprises a syringe tube 1, a plug 2, a fixing column 3, a bearing surface 4, a column hole 5, a support rod 7, a pushing part 8 and a push rod 9, wherein the syringe tube 1 is tightly attached to the plug 2; the syringe tube body 1 is fixedly connected with the fixed column 3; the syringe tube body 1 is fixedly connected with the stress surface 4; the plug part 2 is movably linked with the push rod 9; the pushing part 8 is fixedly connected with the push rod 9; the pushing part 8 is fixedly connected with the supporting rod 7, and the fixing column 3 is used for preventing the push rod from being pulled out of the syringe tube body in an accidental situation to pollute the medicine.

The lower end of the supporting rod 7 is provided with a cone 6; the height of the column hole 5 is more than the height of the support rod 7 and the cone 6, the arrangement is to completely inject the medicine of the prefilled syringe, so that the medicine is prevented from being wasted; between the bore 5 and the cone 6 is a shield 11 which prevents accidental pushing of the plunger into the barrel of the syringe, resulting in waste of medication. The material of the barrier 11 is aluminum foil.

After the outer package of the prefilled syringe is disassembled, when medical staff injects the patient, the cone 6 at the lower end of the support rod 7 pierces the shelter 11, so that all the medicine in the prefilled syringe is injected into the patient.

Claims

1. A novel pre-filled syringe is characterized by comprising a syringe tube body (1), a plug part (2), a fixing column (3), a stress surface (4), a column hole (5), a supporting rod (7), a pushing part (8) and a push rod (9), wherein the syringe tube body (1) is tightly attached to the plug part (2); the syringe tube body (1) is fixedly connected with the fixing column (3); the syringe tube body (1) is fixedly connected with the stress surface (4); the plug part (2) is movably connected with the push rod (9); the pushing part (8) is fixedly connected with the push rod (9); the pushing part (8) is fixedly connected with the supporting rod (7).

2. A novel prefilled syringe as claimed in claim 1, wherein said fixing post (3) has a post hole (5) opened in the middle; the diameter of the support rod (7) is slightly smaller than that of the column hole (5).

3. A novel prefilled syringe according to claim 2, wherein the height of said post hole (5) is larger than the height of said support rod (7); the height of the column hole (5) is larger than the distance between the plug part (2) and the bottom of the syringe tube body (1).

4. A new pre-filled syringe as claimed in claim 3, wherein the end of the post hole (5) connected to the supporting rod (7) is provided with a blocking means (10), and the surface of the supporting rod (7) is provided with means for engaging with the blocking means (10).

5. A novel pre-filled syringe as defined in claim 4 wherein said blocking means (10) is one of a bar and two symmetrical convex surfaces.

6. A novel pre-filled syringe as defined in claim 2 wherein said support rod (7) has a tapered body (6) at its lower end; the height of the column hole (5) is larger than the height of the supporting rod (7) and the cone (6); a shelter (11) is arranged between the column hole (5) and the cone (6).

7. A novel pre-filled syringe as defined in claim 6 wherein said shield (11) is made of aluminum foil.