CN110812224A

CN110812224A - Transfusion rubber plug

Info

Publication number: CN110812224A
Application number: CN201911174951.XA
Authority: CN
Inventors: 郑明爱
Original assignee: Hubei Promise Pharmaceutical Packaging Technology Co Ltd
Current assignee: Hubei Promise Pharmaceutical Packaging Technology Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-02-21

Abstract

The invention discloses an infusion rubber plug which comprises a plug cover and a plug force extending from one surface of the plug cover, wherein a needling ring is formed in the center of the surface of the plug cover, which is far away from the plug force, the surface of the plug cover sequentially protrudes from the needling ring to the outer periphery to form a first protrusion and a second protrusion, and the thickness of the part, located on the needling ring, of the plug cover is 60-75% of the thickness of the part, located between the first protrusion and the second protrusion, of the plug cover. The transfusion rubber plug provided by the invention can effectively reduce the probability of needle-punching scrap falling during transfusion so as to reduce the blockage of a transfusion tube and the injury of a patient.

Description

Transfusion rubber plug

Technical Field

The invention relates to the technical field of medical appliance articles, in particular to an infusion rubber plug.

Background

The medical transfusion rubber bottle stopper is a main sealing part and a leading-out part of bottled medicine, and utilizes the special elasticity of rubber, thereby realizing reliable sealing of the medicine and providing convenience for storage and use of the medicine. At present, the widely used common rubber plug comprises a plug cover and a concave or square open-type plug neck connected with the plug cover, and the common rubber plug has the following defects: because ordinary plug is not antifriction, in infusion acupuncture in-process, the acupuncture circle can be sunken along with the infusion syringe needle together, produces deformation, and rubber can extrude into the mesopore of syringe needle, cuts off rubber formation bits along with the whereabouts of syringe. In the practical application process, the condition that needle prick falling scraps are easy to generate due to unskilled operation of an injector operator during dispensing is found, and the thicker the needle prick ring part of the rubber plug is, the more the needle prick falling scraps are easy to generate. FIG. 1 shows a conventional rubber stopper for infusion solution, in which a first protrusion and a second protrusion extend from a surface of a stopper cover away from a stopper force portion to reinforce the stopper cover during acupuncture; however, the first bulge forms a circle, the center forms a needling ring, the thicknesses of the needling ring and the first bulge and the second bulge are equal, and the situation of scrap falling during needling is serious.

Disclosure of Invention

The invention aims to provide an infusion rubber plug which can effectively reduce the puncture and scrap falling during infusion.

The technical scheme provided by the invention is as follows:

the utility model provides an infusion plug, includes the gag, reaches by the gag one side is extended fills in strength, the gag deviates from the centre of the gag one side forms the acupuncture circle, the gag surface by the acupuncture circle outwards protrudes in proper order and forms first arch and second arch, the gag is located the thickness at acupuncture circle position is for the gag is located 60-75% of the thickness at position between first arch and the second arch.

The invention also provides the application of the transfusion rubber plug in the transfusion process of preventing needle-punching and scrap falling.

The technical scheme provided by the invention at least comprises the following beneficial effects:

according to the transfusion rubber plug provided by the invention, when the thickness of the plug cover positioned at the acupuncture ring part is 60-75% of the thickness of the plug cover positioned between the first bulge and the second bulge, the thickness of the acupuncture ring is directly related to the quantity and size of falling scraps, the quantity of the falling scraps, particularly the quantity of the large falling scraps, can be obviously reduced by reducing the thickness of the acupuncture ring, the probability of acupuncture falling scraps in transfusion can be effectively reduced, and the blockage of a transfusion tube and the injury to a patient can be reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a sectional view and a top view of a prior infusion plug;

FIG. 2 is a cross-sectional view and a top view of the transfusion rubber plug provided by the invention;

1 plugging cover, 10 needling rings, 11 first bulges, 12 second bulges and 2 plugging forces.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The transfusion rubber plug provided by the invention can effectively reduce the puncture and falling scraps during transfusion so as to reduce the blockage of a transfusion tube and the injury to patients.

First, transfusion rubber plug structure

As shown in figure 2, the transfusion rubber plug comprises a plug cover 1 and a plug force 2 extending from one surface of the plug cover 1, wherein the center of the side, away from the plug force 2, of the plug cover 1 forms a needling ring 10, the surface of the plug cover 1 is sequentially protruded from the needling ring 10 to the periphery to form a first protrusion 11 and a second protrusion 12, and the thickness of the plug cover 1 at the needling ring part is 58.06-88% of the thickness of the plug cover at the part between the first protrusion and the second protrusion.

Through experiments and practical massive application, the invention discovers that when the thickness D1 of the part, located on the acupuncture ring 10, of the plug cover 1 is set to be 60-75% of the thickness D2 of the part, located between the first bulge 11 and the second bulge 12, of the plug cover 1, acupuncture scraps in the infusion process can be effectively reduced, and therefore, the blockage of an infusion tube and the injury to a patient can be reduced.

Specifically, as shown in fig. 2, the thickness D1 of the plug 1 at the needle loop position is 2.0 ± 0.2mm, and the thickness D2 of the plug 1 at the position between the first protrusion 11 and the second protrusion 12 is 2.8 ± 0.3 mm. When the needle penetrates into the part of the needle ring 10, the needle can pass through the needle quickly, and meanwhile, the first bulge 11 and the second bulge 12 are used as supports, so that the transfusion bottle can be prevented from leaking when being hung upside down.

Specifically, the plurality of needling rings 10 are uniformly distributed along the central circumference of the plug cover 1. Through setting up a plurality of acupuncture circles 10, can insert a plurality of syringe needles, reduce the plug syringe needle when infusion, adding medicine, further reduce the condition that produces the bits that fall.

In particular, the central thickness of the pack 1 between the plurality of piercing loops 10 is equal to the thickness of the pack 1 between the first and

second lobes

11, 12. Thus, the thickness of the center of the plug 1 plays a supporting role, so that the plug 1 in the whole first bulge 11 is not sunk in the acupuncture process. Specifically, the center-to-center distance D3 between every two needling rings 10 of the cover surface center of the plug cover 1 which are collinear is 4.0-4.5mm, and the diameter D4 of the needling rings 10 is 2.0-2.4 mm.

Furthermore, the acupuncture ring 10 has an opening angle of 20 degrees, so that the needle head can be conveniently inserted and pulled out.

Second, the experiment of preventing the acupuncture from falling bits of the infusion plug

Test samples: the butyl rubber stoppers in fig. 1 and 2 were used as verification objects and are denoted as a and B, respectively. As shown in fig. 2, the thickness of the 10 parts of the acupuncture ring is 2.0mm +/-0.2; the thickness of the part between the first protrusion 11 and the second protrusion 12 is 2.8 +/-0.3 mm.

Test equipment and instruments: disposable sterile dispensing syringe (20 ml): g1, G2; disposable infusion set (with needle): manufactured by G3 corporation; plastic and aluminum plastic caps: manufactured by G4.

The butyl rubber stoppers A and B were tested by subjecting the products to a sterilization treatment in an autoclave (G154 TW).

TABLE 1 dispensing syringes of G1 Inc. puncturing butyl rubber stoppers A and B test results

TABLE 2 test results of penetration of dispensing syringes of company G2 into butyl rubber stoppers A and B

As can be seen from the above table, the probability of the falling debris of B is significantly lower than that of A in the case of piercing with the dispensing syringes produced by G1 and G2 under the same conditions.

Further sealing and piercer retention test results for sample B: and (3) respectively covering 10 rubber plugs B on 100ml plastic bottles, sealing the plastic bottles by adding an aluminum-plastic pipe, keeping the temperature at 121 ℃ for 30 minutes, prying off the aluminum-plastic cover after the sealing, enabling the needling ring to have no bulge, enabling the puncture outfit to puncture the rubber plugs and hang upside down, enabling the puncture outfit to hang a 0.5Kg weight, and enabling the puncture outfit not to be pulled out after 48 hours and not to leak.

And (4) conclusion: the dropping scraps in the transfusion process of hospitals, particularly the big dropping scraps are caused by cutting the rubber plug by the knife edge of a 20ml dispensing syringe, and are irrelevant to the formula of the butyl rubber plug. The thickness of the needling ring is directly related to the quantity and the size of falling scraps, and the quantity of the falling scraps, particularly the quantity of the large falling scraps, can be obviously reduced by reducing the thickness of the needling ring. The thickness of the needle ring part is changed, so that other properties of the butyl rubber plug are not affected. The influence of 20ml dispensing syringes of different manufacturers on the falling scraps is greatly different.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an infusion plug, its characterized in that, includes the gag, reaches by the gag one side is extended fills in the strength, the gag deviates from fill in strength one side center and forms the acupuncture circle, the gag surface by the acupuncture circle outwards protrudes in proper order and forms first arch and second arch, the gag is located the thickness at acupuncture circle position is the gag is located 60-75% of the thickness at position between first arch and the second arch.

2. The infusion rubber plug according to claim 1 wherein the thickness of the plug cap located on the acupuncture ring is 2.0mm plus or minus 0.2mm, and the thickness of the plug cap located between the first protrusion and the second protrusion is 2.8 mm plus or minus 0.3 mm.

3. The infusion rubber plug according to claim 1, wherein the plurality of the needling rings are uniformly distributed along the central circumference of the plug cover.

4. The infusion plug according to claim 3 wherein the thickness of the center of the plug cap between the plurality of the piercing rings is equal to the thickness of the plug cap between the first protrusion and the second protrusion.

5. The infusion rubber plug according to claim 2, wherein the distance between the centers of every two acupuncture rings which are collinear with the center of the cap surface of the plug cover is 4.0-4.5mm, and the diameter of each acupuncture ring is 2.0-2.4 mm.

6. The infusion rubber plug according to any one of claims 1 to 5, wherein the needle ring has an opening angle of 20 °.

7. Use of an infusion gel according to any one of claims 1 to 6 in a needle stick and chip resistant infusion process.