CN216303224U

CN216303224U - Prefilled syringe seals syringe stopper ware

Info

Publication number: CN216303224U
Application number: CN202123071922.6U
Authority: CN
Inventors: 倪世利; 范晓宇; 徐千贺; 李磊; 于媛媛
Original assignee: Shandong Weigao Prefills Pharmaceutical Packaging Co Ltd
Current assignee: Shandong Weigao Prefills Pharmaceutical Packaging Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-15
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a pre-filling and sealing injector plugging device, which comprises: a syringe needle tube for loading a medical fluid; the rubber plug is used for plugging the liquid medicine in the syringe needle tube; the plugging device is used for inserting the rubber plug into the syringe needle tube; the separating device is used for separating the rubber plug and the plugging device; the plug device is arranged at the end part of the plug device in a clamping way, the plug device is in clearance fit with the syringe needle tube, the outer diameter of the plug is larger than or equal to the inner diameter of the syringe needle tube, the plug device is provided with a through hole in an axial penetrating way, and the end part of the separating device can penetrate through the through hole to abut against the plug. By using the pre-filled and sealed syringe plugging device provided by the utility model, the plugging and exhausting operation effect of the pre-filled and sealed syringe can be effectively improved, and the device is simple in structure, convenient to use and capable of being popularized and used.

Description

Prefilled syringe seals syringe stopper ware

Technical Field

The utility model relates to the technical field of syringes, in particular to a pre-filling and sealing syringe plugging device.

Background

In the prior art, a prefilled syringe is different from a common syringe in that liquid medicine is sealed in a needle tube, and the needle end of the prefilled syringe is a sealing end and can be opened only during injection. The needle end of a common syringe is open, and when the syringe is used for injection, liquid medicine is sucked and then the piston is pushed to discharge air. Due to the difference, the two ends of the needle tube of the pre-filled syringe are sealed simultaneously when the rubber plug is added after the pre-filled syringe is injected with the liquid medicine, and the internal air can be exhausted difficultly at the moment. Therefore, when the rubber plug is filled with the filled medicine in a pharmaceutical factory, air in the liquid medicine needs to be discharged so as to prevent impurities in the air from polluting the liquid medicine and prevent excessive bubbles from being injected into a human body to cause harm to the human body.

At present, the vacuum stoppering and air-exhausting operation is generally performed by using a pre-filling and sealing syringe vacuum stoppering machine, but the equipment is expensive, and when a small amount of and various types of liquid medicine air-exhausting operation is performed, tools need to be frequently changed, so that the operation is not flexible and convenient.

In summary, how to improve the operation effect of plugging and exhausting the pre-filled and sealed injector is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a plugging device for a prefilled syringe, which can effectively improve the operation effect of plugging and exhausting the prefilled syringe, and the device has a simple structure, is convenient to use, and can be popularized and used.

In order to achieve the above purpose, the utility model provides the following technical scheme:

a pre-filled syringe stopper comprising:

a syringe needle tube for loading a medical fluid;

the rubber plug is used for plugging the liquid medicine in the syringe needle tube;

a plugging device for inserting the plug into the syringe needle;

a separating device for separating the plug and the plugging device;

the plug card is located the tip of plugging device, the plugging device with the syringe needle tubing is clearance fit, the external diameter of plug is more than or equal to the internal diameter of syringe needle tubing, the plugging device runs through along the axial and is equipped with the through-hole, separator's tip can pass the through-hole supports the plug.

Preferably, the end of the syringe needle tube is provided with a needle head and a protective cap for sealing the needle head, and the protective cap is sleeved on the periphery of the needle head.

Preferably, the end part of the plug adding device is provided with a support for clamping the rubber plug, and the support is a triangular frame, a straight frame, a rectangular frame or a threaded frame.

Preferably, the inner holes of the bracket and the rubber plug are in interference fit.

Preferably, the side part of the plugging device is provided with an exhaust sheet, and the exhaust sheet is a corrugated sheet or a gear sheet.

Preferably, the largest diameter of the exhaust sheet is smaller than or equal to the inner diameter of the syringe needle tube.

Preferably, the separation device comprises a positioning core rod which can be inserted into the through hole and a handheld part which is used for controlling the movement of the positioning core rod, and the handheld part is arranged at the end part of the positioning core rod.

Preferably, the separating device and the plugging device are both made of plastic materials.

When the prefilled syringe stopper adding device provided by the utility model is used, firstly, the liquid medicine can be injected into the syringe needle tube, then the rubber stopper is arranged at the end part of the stopper adding device, and then the stopper adding device and the rubber stopper are inserted into the syringe needle tube, so that the rubber stopper can block the liquid medicine in the syringe needle tube. In the plugging process, air in the syringe needle tube can be discharged outwards through a gap between the plugging device and the syringe needle tube, after the air is completely discharged, the separating device can be inserted into the through hole of the plugging device, the end part of the separating device penetrates through the through hole to abut against the rubber plug, then the plugging device is pulled out reversely to separate the plugging device from the rubber plug, and finally the separating device can be pulled out reversely to complete the plugging and exhausting operation of the pre-filled and sealed syringe. Because the external diameter of plug is greater than or equal to the internal diameter of syringe needle tubing, and the plug has certain elasticity, after the plug removed to preset position, can effectively seal the liquid medicine.

In conclusion, the pre-filled and sealed injector plugging device provided by the utility model can effectively improve the plugging and exhausting operation effect of the pre-filled and sealed injector, and the device is simple in structure, convenient to use and capable of being popularized and used.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a pre-filled syringe stopper provided by the present invention;

FIG. 2 is a schematic external view of a pre-filled syringe stopper;

FIG. 3 is a cross-sectional view of a pre-filled syringe stopper;

FIG. 4 is a schematic view of the assembly of the plugging device and the separating device;

fig. 5 is an exploded view of a pre-filled syringe stopper.

In fig. 1-5:

1 is a syringe needle tube, 2 is a rubber plug, 3 is a plugging device, 4 is a separating device, 41 is a positioning core rod, 42 is a handheld part, 5 is a through hole, 6 is a protective cap, 7 is a bracket and 8 is an exhaust sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the utility model is to provide a plugging device for a pre-filled and sealed injector, which can effectively improve the plugging and exhausting operation effect of the pre-filled and sealed injector, and the device has simple structure and convenient use and can be popularized and used.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a pre-filled syringe stopper provided by the present invention; FIG. 2 is a schematic external view of a pre-filled syringe stopper; FIG. 3 is a cross-sectional view of a pre-filled syringe stopper; FIG. 4 is a schematic view of the assembly of the plugging device and the separating device;

fig. 5 is an exploded view of a pre-filled syringe stopper.

This embodiment provides a prefilled syringe fills in stopper ware, includes: a syringe needle tube 1 for containing a drug solution; a rubber plug 2 for plugging the liquid medicine in the syringe tube 1; a plugging device 3 for inserting the rubber plug 2 into the syringe tube 1; a separating device 4 for separating the plug 2 and the plugging device 3; plug device 3's tip is located to plug 2 card, and plug device 3 and syringe needle tubing 1 are clearance fit, and plug device 2's external diameter is more than or equal to syringe needle tubing 1's internal diameter, and plug device 3 runs through along the axial and is equipped with through-hole 5, and separator 4's tip can pass through-hole 5 and support plug 2.

It should be noted that the plugging device 3 and the syringe needle 1 are in clearance fit, so that air can be discharged outwards through the clearance during the process of inserting the plugging device 3 into the syringe needle 1, so as to achieve the function of discharging air. The device has the advantages of simple structure and convenient operation, does not need to purchase other equipment, can reduce the cost of plugging and exhausting operation, can separate the rubber plug 2 from the plugging device 3 by using the separating device 4, can prevent the rubber plug 2 from being damaged, and can avoid the foreign matter or liquid from splashing introduced into the syringe needle tube 1 in the degumming process.

The shape, structure, size, material, position and the like of the syringe needle tube 1, the rubber plug 2, the plugging device 3 and the separating device 4 can be determined in the actual application process according to the actual situation and the actual requirement.

When the pre-filled and sealed syringe plugger provided by the utility model is used, firstly, liquid medicine can be injected into the syringe needle tube 1, then the rubber plug 2 is arranged at the end part of the plugger 3, and then the plugger 3 and the rubber plug 2 are inserted into the syringe needle tube 1, so that the rubber plug 2 plugs the liquid medicine in the syringe needle tube 1. In the plugging process, air in the syringe needle tube 1 can be discharged outwards through a gap between the plugging device 3 and the syringe needle tube 1, after the air is discharged completely, the separating device 4 can be inserted into the through hole 5 of the plugging device 3, the end part of the separating device 4 penetrates through the through hole 5 to be propped against the rubber plug 2, then the plugging device 3 is pulled out reversely to separate the plugging device 3 from the rubber plug 2, and finally, the separating device 4 can be pulled out reversely to complete the plugging and exhausting operation of the pre-filled and sealed syringe. Because the external diameter of plug 2 is greater than or equal to the internal diameter of syringe needle tubing 1, and plug 2 has certain elasticity, after plug 2 removed to preset position, can effectively seal the liquid medicine.

In addition to the above embodiments, it is preferable that the end of the syringe needle tube 1 is provided with a needle and a cap 6 for sealing the needle, and the cap 6 is fitted over the outer periphery of the needle. The protective cap 6 can effectively block the needle head, and the protective cap 6 can be matched with the rubber plug 2 to seal liquid medicine so as to prevent the liquid medicine from containing gas.

Preferably, the end part of the plugging device 3 is provided with a support 7 for clamping the rubber plug 2, and the support 7 is a triangular frame, a straight frame, a rectangular frame or a threaded frame. The bracket 7 can ensure that the rubber plug 2 is not slipped off, and can also increase the deformation diameter range of the rubber plug 2, so that the thrust required to be exerted in the plugging process is greatly reduced.

Preferably, the inner holes of the bracket 7 and the rubber plug 2 are in interference fit, so that the rubber plug 2 is ensured not to fall off in the process of inserting the syringe needle tube 1.

Preferably, the side of the plugging device 3 is provided with an exhaust sheet 8, and the exhaust sheet 8 is a corrugated sheet or a gear sheet. That is, the exhaust sheet 8 may be provided on the side edge of the main body of the plugging device 3, and the exhaust sheet 8 may be provided as a corrugated sheet or a gear sheet, so as to ensure that an exhaust passage is provided between the exhaust sheet 8 and the syringe needle 1, so that the plugging process can be performed simultaneously with the exhaust operation.

Preferably, the largest diameter of the vent flap 8 is less than or equal to the inside diameter of the syringe barrel 1.

It should be noted that the maximum diameter of the arc top of the exhaust piece 8 is equal to or smaller than the inner diameter of the syringe needle tube 1, so that the arc top of the exhaust piece 8 of the plugging device 3 can be in line contact with or not in contact with the inner wall of the syringe needle tube 1, the contact area between the plugging device 3 and the syringe needle tube 1 is effectively reduced, the smooth insertion and extraction processes of the plugging device 3 are ensured, and the damage of the plugging device 3 to the inner wall of the syringe needle tube 1 can be avoided.

On the basis of the above embodiment, it is preferable that the separation device 4 includes a positioning core rod 41 that can be inserted into the through hole 5 and a hand-held portion 42 for controlling the movement of the positioning core rod 41, and the hand-held portion 42 is provided at an end portion of the positioning core rod 41. When the plug adding device 3 and the rubber plug 2 need to be separated, the positioning core rod 41 can be inserted into the through hole 5, and the positioning core rod 41 can be controlled to be inserted or pulled out by controlling the handheld part 42. The positioning core bar 41 can effectively prevent the plug adding device 3 from being lifted up the rubber plug 2 when being pulled out outwards, so that the rubber plug 2 can be prevented from being pulled out outwards along with the plug adding device 3, and the positioning core bar 41 can ensure that the rubber plug 2 is not influenced by the plug adding device 3 and is fixed at a preset position so as to prevent the rubber plug 2 from moving and causing the secondary suction phenomenon of bubbles.

Preferably, the separating device 4 and the plugging device 3 are both made of plastic materials, so as to prevent the separating device 4 or the plugging device 3 from damaging the syringe needle tube 1 and the rubber plug 2. Other materials with good toughness and elasticity and low hardness can be used for preventing the separating device 4 and the plugging device 3 from damaging the rubber plug 2 and the syringe needle tube 1 by the separating device 4 and the plugging device 3. For example, the positioning core bar 41 may be made of stainless steel.

To further illustrate the method of using the pre-filled syringe stopper provided by the present invention, the following example is provided.

Firstly, can install the one end that is equipped with the syringe needle at syringe needle 1 with protective cap 6, then, can be to injecting the liquid medicine in the syringe needle 1, afterwards, can install plug 2 on the support 7 of plugging device 3, the hole of support 7 and plug 2 is interference fit, then, can place plug device 3 and plug 2 at the opening part of syringe needle 1, the certain angle of exhaust sheet 8 slope that will plug device 3 main part lateral margin packs into in syringe needle 1, and continuously push plug 2, make plug 2 reach the liquid level department of liquid medicine. During the period, the air in the syringe needle tube 1 can be discharged outwards through the corrugated gap or the tooth-shaped gap of the exhaust sheet 8, after the air is discharged, the positioning core rod 41 can be inserted into the through hole 5 of the plugging device 3, and thrust is applied to the positioning core rod 41, so that one end of the positioning core rod 41 is propped against the rubber plug 2, the relative position of the rubber plug 2 in the syringe needle tube 1 is ensured to be unchanged, meanwhile, pulling force can be applied to the plugging device 3, the plugging device 3 is pulled outwards, and finally, the positioning core rod 41 can be pulled outwards, so that the plugging exhaust operation is completed.

The device has the advantages of simple structure, simple and convenient operation, no need of purchasing equipment, operation time saving, cost reduction, efficiency improvement, good exhaust effect, and capability of effectively preventing phenomena of breakage of the rubber plug 2, foreign matter introduction or liquid splashing of the syringe needle tube 1 and the like.

It should be noted that the directions and positional relationships indicated in the present application, such as "up and down" and the like, are based on the directions and positional relationships shown in the drawings, and are only for the convenience of simplifying the description and facilitating the understanding, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all the embodiments provided by the present invention is within the scope of the present invention, and will not be described herein.

The pre-filled syringe stopper applicator provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A pre-filled syringe stopper applicator, comprising:

a syringe needle tube (1) for containing a drug solution;

a rubber plug (2) for plugging the liquid medicine in the syringe needle tube (1);

a plugging device (3) for inserting the rubber plug (2) into the syringe needle tube (1);

-a separating device (4) for separating the plug (2) and the plugging device (3);

plug (2) card is located add the tip of stopper device (3), add stopper device (3) with syringe needle tubing (1) is clearance fit, the external diameter of plug (2) is more than or equal to the internal diameter of syringe needle tubing (1), it is equipped with through-hole (5) to run through along the axial with stopper device (3), the tip of separator (4) can pass through-hole (5) support plug (2).

2. The pre-filled and sealed syringe stopper according to claim 1, wherein the end of the syringe needle tube (1) is provided with a needle and a cap (6) for sealing the needle, and the cap (6) is sleeved on the periphery of the needle.

3. The pre-filled and sealed syringe stopper adding device according to claim 1, wherein a bracket (7) for clamping the rubber stopper (2) is arranged at the end part of the stopper adding device (3), and the bracket (7) is a triangular frame, a straight frame, a rectangular frame or a threaded frame.

4. The pre-filled and sealed syringe stopper according to claim 3, characterized in that the inner holes of the bracket (7) and the rubber stopper (2) are in interference fit.

5. The pre-filled and sealed syringe stopper according to any one of claims 1 to 4, characterized in that the stopper device (3) is provided with a vent plate (8) on the side, and the vent plate (8) is a corrugated plate or a gear plate.

6. The pre-filled and sealed syringe stopper according to claim 5, wherein the largest diameter of the vent flap (8) is smaller than or equal to the inner diameter of the syringe needle (1).

7. The pre-potted syringe stopper according to any one of claims 1 to 4 wherein the separating means (4) comprises a positioning core rod (41) insertable into the through hole (5) and a hand grip (42) for controlling the movement of the positioning core rod (41), the hand grip (42) being provided at the end of the positioning core rod (41).

8. The pre-filled and sealed syringe stopper according to any one of claims 1 to 4, wherein the separating means (4) and the stopper means (3) are both plastic parts.