Double round side-attached gasket

Abstract

The application relates to the technical field of medical gaskets, in particular to a double-circle type side-continuous gasket, which comprises a gasket body in a circular structure, a needle penetrating guide groove arranged on the upper end face of the gasket body, an inner groove arranged on the lower end face of the gasket body and having the same center as the gasket body, an elastic lateral clamping and fixing assembly arranged in the inner groove and having the same axis as the needle penetrating guide groove, an integral structure of the elastic lateral clamping and fixing assembly and the gasket body, and a detachable sealing assembly arranged in the gasket body and above the elastic lateral clamping and fixing assembly. The elastic clamping plate integrally connected with the gasket body is arranged, the needle of the injector can be inserted and fixed, and the injector is not easy to incline. The detachable sealing assembly arranged between the gasket body and the elastic clamping plate can seal the perforation caused by the needle of the injector after the needle is pulled out, so that the leakage of the liquid medicine is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical pad technology, specifically a double-circular side-connected pad. Background Technology

[0002] Existing vial stopper gaskets for injection solutions have elastic raised rings on their surface. The gasket is sealed and clamped between a plastic outer shell and an inner shell, with the inner shell sealingly connected to the vial opening. One or more recessed rings are located within the raised ring area of ​​the gasket. However, this structure has a drawback: the recessed rings are vertically embedded within the gasket body, resulting in poor self-sealing of the needle hole after it is inserted and then withdrawn. Furthermore, Chinese patent application CN202220788592.8 discloses a pad with a needle-guiding structure made of pharmaceutical synthetic polyisoprene, including an outer ring and an inner body disposed inside the outer ring. The fixing components include an outer ring disposed above the inner body and a threaded block fixedly installed at the lower end of the outer ring. A fixing point is provided on one side of the outer ring. This invention solves the problem that existing methods are inconvenient for guiding the syringe during insertion, easily affecting the needle-guiding effect. In this case, the outer ring is located outside the guide hole, serving as a reminder of the guide hole's position. The operator then inserts the syringe into the guide hole for use. The guide hole has a trapezoidal shape, thus effectively guiding the needle. The pad in this patent lacks a fixing point after needle insertion, which can easily cause the syringe needle to tilt after insertion, leading to pad deformation. Furthermore, the fixing component on this pad is a detachable structure, requiring removal before and after each use, which is inconvenient. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a double-circular side-connected gasket.

[0004] The technical problem to be solved by this invention is achieved by the following technical solution:

[0005] A double-circular side-connected gasket includes a gasket body with a circular structure, a needle-guiding groove disposed on the upper end face of the gasket body, and an internal groove disposed on the lower end face of the gasket body, which is concentric with the internal groove. An elastic lateral clamping and fixing component is disposed in the internal groove and is coaxially distributed with the needle-guiding groove. The elastic lateral clamping and fixing component is integrally formed with the gasket body. A separable sealing component is disposed inside the gasket body and directly above the elastic lateral clamping and fixing component. The separation sealing axis of the separable sealing component is collinear with the central axis of the needle-guiding groove.

[0006] Preferably, four positioning protrusions are provided at the edge of the upper end face of the gasket body, evenly distributed along the circumferential direction.

[0007] Preferably, a positioning groove is provided at the lower end face edge of the gasket body, which is concentrically distributed with the gasket body.

[0008] Preferably, the cross-section of the positioning groove is trapezoidal.

[0009] Preferably, the needle-guiding groove is divided into a first needle-guiding groove and a second needle-guiding groove. There is one first needle-guiding groove, which is concentrically distributed with the gasket body. There are four second needle-guiding grooves, which are distributed along the circumference of the gasket body on the upper end face of the gasket body.

[0010] Preferably, a needle positioning groove is provided at the center of the first needle-guiding groove and the four second needle-guiding grooves.

[0011] Preferably, the elastic lateral clamping and fixing components are provided in five sets, corresponding vertically to the first needle guide groove and the four second needle guide grooves. Each of the five sets of elastic lateral clamping and fixing components includes four elastic clamping plates integrally connected to the gasket body and inclined downwards. The four elastic clamping plates are distributed in the front, back, left and right directions respectively.

[0012] Preferably, the split sealing assembly is provided in five groups, which are correspondingly distributed between the first needle guide groove, the four second needle guide grooves, and the five groups of elastic lateral clamping and fixing assemblies.

[0013] Preferably, each of the five sets of separable sealing assemblies includes two sealing blocks that are relatively distributed and interlocked with each other, and a spring connected to the two sealing blocks. The interlocking end faces of the two sealing blocks have a toothed structure.

[0014] Preferably, the upper ends of both sealing blocks are inclined downwards, and the engaging ends of the two sealing blocks are located directly below the center of the needle-guiding groove.

[0015] The beneficial effects of this invention are:

[0016] Compared with the prior art, the present invention achieves needle insertion and fixation of the syringe by setting an elastic clamp that is integrally connected with the pad body, which is not easy to tilt. By setting a separate sealing component between the pad body and the elastic clamp, the perforation caused by the needle in the pad body can be sealed after the needle of the syringe is pulled out, thus avoiding leakage of medicine. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention from the front view.

[0020] Figure 3 This is a top view of the structure of the present invention;

[0021] Figure 4 This is a bottom-view structural diagram of the present invention.

[0022] In the diagram: 1. Gasket body; 2. Positioning protrusion; 3. Positioning groove; 4. First needle guide groove; 5. Second needle guide groove; 6. Needle positioning groove; 7. Internal groove; 8. Elastic clamp; 9. Sealing clamp; 10. Spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figures 1 to 4 As shown, a double-circular side-connected gasket includes a gasket body 1 with a circular structure and a needle-guiding groove disposed on the upper end face of the gasket body 1. The gasket body 1 has a concentrically distributed built-in groove 7 on its lower end face. An elastic lateral clamping and fixing component is disposed within the built-in groove 7 and is coaxially distributed with the needle-guiding groove. The elastic lateral clamping and fixing component is integrally formed with the gasket body 1. A separable sealing component is disposed inside the gasket body 1 and directly above the elastic lateral clamping and fixing component. The separation sealing axis of the separable sealing component is collinear with the central axis of the needle-guiding groove.

[0025] As a further improvement to this embodiment, four positioning protrusions 2 are evenly distributed along the circumferential direction at the upper end edge of the gasket body 1. The four positioning protrusions 2 facilitate clamping and fixing of the gasket body 1 during processing, and also facilitate positioning of the gasket with the connecting cover during use and installation.

[0026] As a further improvement of this embodiment, a positioning groove 3 is provided at the lower end face edge of the gasket body 1, which is concentrically distributed with the gasket body 1. The positioning groove 3 serves to facilitate the installation and positioning of the gasket and the bottle mouth; furthermore, the cross-section of the positioning groove 3 is trapezoidal.

[0027] As a further improvement to this embodiment, the needle-guiding groove is divided into a first needle-guiding groove 4 and a second needle-guiding groove 5. There is one first needle-guiding groove 4, concentrically distributed with the gasket body 1. There are four second needle-guiding grooves 5, distributed along the circumference of the gasket body 1 on its upper end face. The size of the first needle-guiding groove 4 is slightly larger than the size of the four second needle-guiding grooves 5.

[0028] As a further improvement to this embodiment, a needle positioning groove 6 is provided at the center of the first needle guiding groove 4 and the four second needle guiding grooves 5.

[0029] As a further improvement of this embodiment, the elastic lateral clamping and fixing components are provided in five sets, which correspond vertically to the first needle guide groove 4 and the four second needle guide grooves 5. Each of the five sets of elastic lateral clamping and fixing components includes four elastic clamping plates 8 that are integrally connected to the gasket body 1 and inclined downwards. The four elastic clamping plates 8 are distributed along the front, back, left and right directions respectively.

[0030] As a further improvement of this embodiment, the split sealing assembly is provided in five sets, which are correspondingly distributed between the first needle guide groove 4, the four second needle guide grooves 5, and the five sets of elastic lateral clamping and fixing assemblies.

[0031] As a further improvement to this embodiment, each of the five sets of separable sealing assemblies includes two sealing blocks 9 that are relatively distributed and interlocked with each other, and a spring 10 connected to the two sealing blocks 9. The interlocking end faces of the two sealing blocks 9 have a toothed structure. The sealing blocks 9 and the gasket body 1 are made of the same material, and the spring 10 is a stainless steel spring.

[0032] As a further improvement of this embodiment, the upper ends of the two sealing blocks 9 are both inclined downwards in a slope-like structure, and the engaging ends of the two sealing blocks 9 are located directly below the center of the needle-guiding groove.

[0033] When using this invention, the syringe needle is inserted into the needle positioning groove 6 under the guidance of the needle guide groove, piercing the gasket body 1. Due to the inclined structure design of the upper end of the sealing clamp 9, the syringe needle can easily separate the two sealing clamps 9 in the locked state. After passing through the two sealing clamps 9, the syringe needle passes through the four elastic clamps 8. Under the action of elastic force, the four elastic clamps 8 hold the syringe needle from the front, back, left and right directions to prevent the syringe needle from tilting.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A double round side-attached gasket, comprising a gasket body (1) in a round structure, a needle insertion guide groove provided on the upper end surface of the gasket body (1), characterized in that: The lower end surface of the gasket body (1) is provided with built-in grooves (7) distributed with the same center, and the built-in grooves (7) are provided with elastic lateral clamping fixing components distributed with the same axis as the needle guide groove, which are integrated with the gasket body (1), and the inside of the gasket body (1) and directly above the elastic lateral clamping fixing component is provided with a separate sealing assembly, and the separate sealing axis of the separate sealing assembly is collinear with the central axis of the needle guide groove. The needle guide groove is divided into a first needle guide groove (4) and a second needle guide groove (5), the first needle guide groove (4) is provided with one and is distributed with the same center as the gasket body (1), and the second needle guide groove (5) is provided with four and is distributed on the upper end surface of the gasket body (1) along the circumferential direction of the gasket body (1). The separate sealing assembly is provided with five groups, which are distributed between the first needle guide groove (4) and the four second needle guide grooves (5) and the five groups of elastic lateral clamping fixing components. The five groups of separate sealing assemblies each include two sealing clamps (9) oppositely distributed and engaged with each other, a spring (10) connected with the two sealing clamps (9), and the engaging end surfaces of the two sealing clamps (9) are in a toothed structure. The upper ends of the two sealing clamps (9) are in a downward inclined slope structure, and the engaging ends of the two sealing clamps (9) are located directly below the center of the needle guide groove.

2. A double circular side tab gasket according to claim 1, wherein: The upper end surface edge of the gasket body (1) is provided with four positioning protrusions (2) uniformly distributed in the circumferential direction.

3. The double circular side tab gasket of claim 1, wherein: The lower end surface edge of the gasket body (1) is provided with a positioning groove (3) distributed with the same center as the gasket body (1).

4. A double circular side tab gasket according to claim 3, wherein: The cross section of the positioning groove (3) is in a trapezoidal structure.

5. The double circular side tab gasket of claim 1, wherein: The center of the first needle guide groove (4) and the four second needle guide grooves (5) is provided with a needle positioning groove (6).

6. The double circular side tab gasket of claim 1, wherein: The elastic lateral clamping fixing component is provided with five groups, which correspond to the first needle guide groove (4) and the four second needle guide grooves (5) above and below, and the five groups of elastic lateral clamping fixing components each include four elastic clamping plates (8) integrally connected with the gasket body (1) and inclined downward, and the four elastic clamping plates (8) are respectively distributed in the front, rear, left and right four directions.

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