CN216140497U

CN216140497U - Medicinal rubber plug

Info

Publication number: CN216140497U
Application number: CN202121217271.4U
Authority: CN
Inventors: 张晓晨; 华一敏
Original assignee: JIANGSU HUALAN NEW PHARMACEUTICAL MATERIAL CO Ltd
Current assignee: JIANGSU HUALAN NEW PHARMACEUTICAL MATERIAL CO Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-03-29
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a medicinal rubber plug which comprises a rubber plug crown part and a rubber plug neck part, wherein a puncture part with a plane bottom and an upward opening is arranged on the top surface of the rubber plug crown part and used for reducing a puncture stroke. The included angle between the side edge of the puncture part and the bottom plane is not less than 90 degrees. The section diameter of the bottom plane of the puncture part is not less than the diameter of a needle head for puncture; the diameter of the top opening of the puncturing part is 40-100% of the diameter of the crown part of the rubber plug. The bottom of the utility model is a puncture part with an upward plane opening, so that the puncture stroke is reduced and the puncture friction force is reduced on the premise of the same needle head size, thereby greatly reducing puncture scraps.

Description

Medicinal rubber plug

Technical Field

The utility model relates to an elastomer sealing element in a medical inner packaging material, in particular to a medicinal rubber plug.

Background

The existing rubber plug for packaging and sealing injection medicines can cause that the filings of acupuncture exceed the standard when a non-standard needle head is used for puncturing in clinic.

Patent document CN105662859A discloses a medicinal rubber plug, including plug crown and plug neck, plug stopper neck bottom surface is spherical arcwall face, and the surface of plug neck is covered with the membrane, and the tectorial membrane position extends to the sealed planar position of plug crown position and bottleneck from plug neck surface all the time, and the stopper post part of plug neck is big end down, and the top surface of plug stopper crown is provided with the acupuncture hole of spherical concave surface. This spherical concave surface acupuncture hole, though can reduce puncture power to a certain extent, prevent that the acupuncture that leads to because of using non-standard syringe needle falls the bits and exceeds standard, but spherical concave surface can wrap up the syringe needle under the effect of puncture force at the puncture in-process, still can face the problem that the acupuncture falls the bits.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a medicinal rubber plug capable of effectively reducing puncture scraps.

The technical scheme is as follows: the medicinal rubber plug comprises a rubber plug crown part and a rubber plug neck part, wherein the top surface of the rubber plug crown part is provided with a puncture part with a plane bottom and an upward opening for reducing puncture stroke.

Preferably, the method comprises the following steps:

the included angle between the side edge of the puncture part and the bottom plane is not less than 90 degrees; the included angle between the side edge of the puncture part and the bottom plane is 90-160 degrees. The material consumption of the sizing material is reduced, thereby reducing the cost.

The section diameter of the bottom plane of the puncture part is not less than the diameter of a needle head for puncture; the diameter of the top opening of the puncturing part is 40-100% of the diameter of the crown part of the rubber plug. The height of the puncturing part is 3.5-40% of the diameter of the crown part of the rubber plug.

The plug column part of the neck part of the rubber plug is splayed; compared with a straight-section plug column in the prior art, the glass bottle plug has larger attaching area and better sealing property.

The bottom surface of the neck part of the rubber plug is covered with a film; the bottom surface of the neck of the rubber plug is a spherical arc surface. The film material stretching rate is reduced from 207.193% to 153.11%, so that the film breaking probability of the rubber plug is reduced. Meanwhile, although the tensile rate of the membrane material is reduced, due to the optimization of the design of the membrane covering part, the matching length of the assembled membrane material and the inner wall of the bottle opening is longer, and the sealing performance is better.

Has the advantages that: compared with the prior art, the utility model has the following remarkable effects: 1. the bottom is the ascending puncture portion of plane opening for under the prerequisite of same syringe needle size, puncture stroke reduces, puncture frictional force reduces, thereby reduces the puncture and falls the bits by a wide margin. 2. The diameter of the top opening of the puncturing part is 40% -100% of the diameter of the crown part of the rubber plug, and the height of the puncturing part is 3.5% -40% of the diameter of the crown part of the rubber plug, so that the gravity center of the rubber plug is closer to the plug column part at the lower part, the friction force between the needle head and the rubber plug is further reduced, and the possibility of scrap falling after puncturing is reduced. 3. The included angle between the side edge of the puncture part and the bottom plane is not less than 90 degrees, so that the acupuncture is more convenient. 4. The plug column part of the neck part of the rubber plug is splayed; compared with a straight-section plug column in the prior art, the glass bottle plug has larger attaching area and better sealing property. 5. The bottom surface of the neck of the rubber plug is a spherical arc surface, and the film material stretching rate is reduced from 207.193% to 153.11%, so that the film breaking probability of the rubber plug is reduced. 6. Although the tensile rate of the membrane material is reduced, due to the optimization of the design of the membrane covering part, the matching length of the assembled membrane material and the inner wall of the bottle opening is longer, and the sealing performance is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIGS. 2(a) and 2(b) are schematic diagrams comparing the present invention with the prior art; fig. 2(a) is a schematic structural diagram of the prior art, and fig. 2(b) is a schematic structural diagram of the present invention.

Detailed Description

The technical scheme of the utility model is further explained by combining the drawings in the specification.

As shown in fig. 1, the utility model provides a medicinal rubber plug, which comprises a rubber plug crown part 1 and a rubber plug neck part 2, wherein the top surface of the rubber plug crown part 1 is provided with a puncturing part 3 with a plane bottom and an upward opening for reducing the puncturing stroke. The included angle between the side edge of the puncture part 3 and the bottom plane is 135 degrees, the section diameter of the bottom plane of the puncture part 3 is equal to the diameter of the needle head used for puncture, the diameter of the top opening is 60 percent of the diameter of the crown part 1 of the rubber plug, and the height of the puncture part 3 is 15 percent of the diameter of the crown part of the rubber plug. The included angle between the side edge of the puncture part 3 and the bottom plane can be other angles not less than 90 degrees, and the diameter of the top opening can be other sizes within 40-100% of the diameter of the rubber plug crown part 1.

The stopper 4 part of plug 2 of plug neck is the splayed, compares in prior art to be the stopper post of straight section, and is bigger, the leakproofness is better with the laminating area of glass bottle. The bottom surface of the rubber plug neck 2 is a spherical arc surface. The bottom surface of the neck part of the rubber plug is covered with a film 5, and the thickened black line in figure 1 is the film 5.

As shown in fig. 2(a) and 2(b), wherein fig. 2(a) is a medical rubber plug in the prior art, fig. 2(b) is a schematic structural diagram of the utility model, and the bottom surfaces of the neck portions 2 of the rubber plug in fig. 2(a) and 2(b) are the same spherical arc surfaces, when the sizes of the needles used are the same, i.e., (i) are the same, it can be seen from fig. 2(a) and 2(b) that the corresponding piercing thicknesses at the edges of the needles are different, the piercing thickness corresponding to the structure of the utility model is smaller, so the friction is smaller, and the rubber plug is more difficult to poke into a bottle. Meanwhile, the structure of the utility model is that the diameter of the top opening of the crown part 1 of the rubber plug is larger, so that the gravity center of the rubber plug is closer to the plug 4 part at the lower part, the friction force between the needle head and the rubber plug is further reduced, and the possibility of scrap falling after needle punching is reduced.

Claims

1. A medicinal rubber plug comprises a rubber plug crown part (1) and a rubber plug neck part (2), and is characterized in that a puncture part (3) with a plane bottom and an upward opening for reducing puncture stroke is arranged on the top surface of the rubber plug crown part (1);

the diameter of the top opening of the puncturing part (3) is 40% -100% of the diameter of the rubber plug crown part (1);

the height of the puncture part (3) is 3.5-40% of the diameter of the rubber plug crown part (1).

2. Medicinal plug according to claim 1, characterized in that the angle between the side of the piercing part (3) and the bottom plane is not less than 90 °.

3. The medicinal rubber plug according to claim 1, wherein the included angle between the side edge of the puncturing part (3) and the bottom plane is 90-160 °.

4. Medicinal plug according to claim 1, characterized in that the cross-sectional diameter of the bottom plane of the piercing part (3) is not smaller than the diameter for the piercing needle.

5. The pharmaceutical plug according to claim 1, characterized in that the plug (4) of the plug neck (2) is splayed.

6. The pharmaceutical plug according to claim 1 wherein the piercing part (3) is of inverted trapezoidal configuration.

7. The medicinal rubber plug according to claim 1, characterized in that the bottom surface of the neck (2) of the plug is a spherical circular arc surface.

8. Medicinal plug according to claim 1, characterized in that the bottom surface of the plug neck (2) is coated with a membrane (5).