CN210873035U

CN210873035U - Sealing gasket for infusion bag

Info

Publication number: CN210873035U
Application number: CN201921115181.7U
Authority: CN
Inventors: 林静; 张文冲
Original assignee: Hangzhou Linan Dayuan Industry & Trade Co ltd
Current assignee: Hangzhou Linan Dayuan Industry & Trade Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-06-30
Anticipated expiration: 2029-07-16

Abstract

The utility model relates to a medical appliance. The purpose provides an infusion bag seal gasket, and this gasket should be able to have sealed effectual, be difficult for dropping and application scope wide characteristics. The technical scheme is as follows: infusion bag seal gasket, including the gasket body, its characterized in that: the gasket body is provided with a first concave hole and a second concave hole on the end surfaces of two sides respectively, and the first concave hole and the second concave hole on the two end surfaces are arranged correspondingly; first shrinkage pool and the horizontal intercommunication of second shrinkage pool, the external diameter of first shrinkage pool is less than the external diameter of second shrinkage pool, and the thickness at first shrinkage pool position is greater than the thickness at second shrinkage pool position on the gasket body.

Description

Sealing gasket for infusion bag

Technical Field

The utility model relates to a medical appliance, in particular to a medical infusion bag.

Background

The infusion bag gasket is an important sealing part arranged between an infusion bag connector (usually made of PP materials) and a sealing cover (usually made of plastics), so that the sealing performance of the infusion bag is ensured, leakage is avoided, and the infusion apparatus needle can be smoothly pierced through the gasket. The prior infusion apparatus is usually provided with two types of needle heads, namely a steel needle and a plastic needle, wherein the steel needle is used in the general infusion process, and the plastic needle is required to be used in the infusion process of heart patients.

However, the plastic needle is significantly thicker than the steel needle, and therefore the penetration ability of the plastic needle is also weaker than that of the steel needle, resulting in both needle heads having certain requirements for the thickness of the gasket. If the pad is too thick, the plastic needle is difficult to pierce the pad, if the pad is too thin, the clamping force of the pad on the steel needle is insufficient although the plastic needle is forcefully pierced, and a pressurized infusion bag (the pressure in the bag is continuously 300N/CM) is used in a hospital²) When a patient is transfused, the high pressure in the transfusion bag can even gradually extrude the steel needle out of the gasket, so that the needle falls. On the other hand, the gasket can turn outwards when the needle is pulled out, so that the sealing is failed, and leakage is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough among the above-mentioned background art, provide an infusion bag seal gasket, this gasket should be able to have sealed effectual, be difficult for dropping and application scope wide characteristics.

The technical scheme of the utility model is that:

infusion bag seal gasket, including the gasket body, its characterized in that: the gasket body is provided with a first concave hole and a second concave hole on the end surfaces of two sides respectively, and the first concave hole and the second concave hole on the two end surfaces are arranged correspondingly; first shrinkage pool and the horizontal intercommunication of second shrinkage pool, the external diameter of first shrinkage pool is less than the external diameter of second shrinkage pool, and the thickness at first shrinkage pool position is greater than the thickness at second shrinkage pool position on the gasket body.

The thickness of the first concave hole part of the gasket body is 2.7-3.1mm, and the thickness of the second concave hole part of the gasket body is 2.4-2.8 mm; the outer diameter of the first concave hole is 2.4-2.6mm, and the outer diameter of the second concave hole is 3.9-4.1 mm; the center-to-center distance between the first concave hole and the second concave hole is 3.15-3.35 mm.

The end surfaces of the two sides of the gasket body are respectively provided with corresponding concave rings, and the concave rings divide the end surface of the gasket body into an inner ring and an outer ring; the first concave hole and the second concave hole are located in the inner ring.

The thickness of the inner ring is 3.8-4.0 mm; the thickness of the outer ring is 3.4-3.6 mm.

The utility model has the advantages that:

the utility model discloses structure to the gasket is improved, can guarantee to mould the impaling requirement of needle, can guarantee again that the steel needle can not take place to drop, still possesses good sealing performance simultaneously, can not lead to the gasket to turn up when extracting the syringe needle, moulds needle and steel needle homoenergetic normal use, has greatly expanded the user demand, has promoted product quality.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic view of the combined structure of the present invention and the sealing cover.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.

As shown in fig. 1, the sealing gasket for infusion bags comprises a gasket body 1. The outer circumference of gasket body is personally submitted the cydariform and is outwards salient, and the both ends face symmetry of gasket body sets up concave ring 2, first shrinkage pool 3 and second shrinkage pool 4.

The concave ring and the gasket body are arranged concentrically, the end face of the gasket body is divided into an inner ring 1.1 and an outer ring 1.2 by the concave ring, and the first concave hole and the second concave hole are both arranged on the inner ring. The steel needle pierces the gasket through the first concave hole, and the plastic needle pierces the gasket through the second concave hole.

The thickness (the size of the up-down direction in fig. 1) of inner circle is greater than the thickness of outer circle, and the degree of depth of first shrinkage pool is less than the degree of depth of second shrinkage pool (the bottom surface of first shrinkage pool is higher than the bottom surface of second shrinkage pool) to the external diameter of first shrinkage pool is less than the external diameter of second shrinkage pool, has just so guaranteed that the thickness of the first shrinkage pool position of two terminal surfaces is greater than the thickness of two second shrinkage pool positions and first shrinkage pool is straightThe diameter is less than the second shrinkage pool diameter, and its benefit lies in: the first concave hole is thicker and more solid, can provide enough clamping force for the steel needle, and carries out 300N/CM on the infusion bag²The steel needle can not drop when continuously pressurizing, and the thinner second concave hole can also facilitate the plastic needle to smoothly pierce the gasket.

The first concave hole is transversely communicated with the second concave hole, and the central distance between the two concave holes is equal to the sum of the radii of the two concave holes, so that the area of the central area of the gasket occupied by the two concave holes is obviously reduced; as shown in figure 3, when the sealing cover 6 with the small opening 6.1 is matched for use (the first concave hole and the second concave hole are positioned in the opening), the small opening of the sealing cover can be used for preventing the gasket from deforming when a needle is pulled out, and the defect that the gasket is easy to turn outwards is overcome.

The outer diameter of the gasket body is 15.2-15.6mm (preferably 15.2 mm). The thickness of the outer ring is 3.4-3.6mm (preferably 3.5 mm). The thickness of the inner ring is 3.8-4.0mm (preferably 3.9 mm).

The outer diameter of the concave ring is 11.6-12mm (preferably 11.8mm), and the width is 1-1.1mm (preferably 1.05 mm). The thickness of the first concave hole part is 2.7-3.1mm (preferably 2.9mm) and the outer diameter of the first concave hole part is 2.4-2.6mm (preferably 2.5 mm). The thickness of the second recess portion is 2.4-2.8mm (preferably 2.6mm) and the outer diameter of the second recess is 3.9-4.1mm (preferably 4 mm). The center-to-center distance between the first concave hole and the second concave hole is 3.15-3.35 mm.

Claims

1. Infusion bag seal gasket, including gasket body (1), its characterized in that: the gasket comprises a gasket body, wherein a first concave hole (3) and a second concave hole (4) are respectively formed in the end surfaces of two sides of the gasket body, and the first concave hole and the second concave hole of the two end surfaces are correspondingly formed; first shrinkage pool and the horizontal intercommunication of second shrinkage pool, the external diameter of first shrinkage pool is less than the external diameter of second shrinkage pool, and the thickness at first shrinkage pool position is greater than the thickness at second shrinkage pool position on the gasket body.

2. The infusion bag sealing gasket of claim 1, wherein: the thickness of the first concave hole part of the gasket body is 2.7-3.1mm, and the thickness of the second concave hole part of the gasket body is 2.4-2.8 mm; the outer diameter of the first concave hole is 2.4-2.6mm, and the outer diameter of the second concave hole is 3.9-4.1 mm; the center-to-center distance between the first concave hole and the second concave hole is 3.15-3.35 mm.

3. The infusion bag sealing gasket of claim 2, wherein: the end faces of the two sides of the gasket body are respectively provided with corresponding concave rings (2), and the concave rings divide the end face of the gasket body into an inner ring (1.1) and an outer ring (1.2); the first concave hole and the second concave hole are located in the inner ring.

4. The infusion bag sealing gasket of claim 3, wherein: the thickness of the inner ring is 3.8-4.0 mm; the thickness of the outer ring is 3.4-3.6 mm.