WO2020091117A1

WO2020091117A1 - Injection needle structure having multiple discharge holes

Info

Publication number: WO2020091117A1
Application number: PCT/KR2018/013218
Authority: WO
Inventors: 최규동
Original assignee: 최규동
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2020-05-07

Abstract

The present invention relates to an injection needle structure having multiple discharge holes. Specifically, the present invention relates to an injection needle structure (100) having multiple discharge holes, comprising: an inner needle (110) having a tip portion (113) for penetration at one end thereof and one or more discharge holes (111) formed in a portion of the side surface in the direction of the one end thereof; a leakage prevention sleeve (120) which is installed in the direction of the tip portion (113) of the inner needle (110) so as to cover the discharge holes (111) before use, and is moved by being pushed such that the discharge holes (111) are opened at the time of penetration; and a needle mounting body (130) having a needle fixing portion (131) to which the other end of the inner needle (110) is fixed.

Description

Multiple outlet injection needle structure

The present invention relates to a multi-injection injection needle structure, an inner needle (110) having a tip portion (113) for invasion at one end, and one or more multiple ejection openings (111) formed in a part of one side of the side. ); And, in the pre-use state is installed in the direction of the tip of the inner needle 110 so as to cover the multiple discharge port 111, and when invasion, the multiple discharge port 111 is pushed to open to move the leak-proof sleeve 120 ); And, a needle mounting body 130 having a needle fixing portion 131 is fixed to the other end of the inner needle 110; It relates to a multi-outlet injection needle structure 100 characterized in that it comprises a.

Conventionally, most of the needles of the syringe have been processed sharply at the distal end so that they can be invaded into the body, and an injection hole for injecting a chemical solution is formed at the distal end.

On the other hand, in the case of a drug containing a polymer compound component such as insulin, since the particles are coarse, it has characteristics that are not easy to diffuse in the human body. Therefore, when the injection solution is injected using an existing injection needle, the injection solution is injected into only one place in the body, so that the drug needs to be rubbed and massaged to spread the drug evenly inside the human body. However, because drugs injected deep into the human body, such as when drugs are injected into the muscle layer, do not spread easily and spread simply by rubbing the skin, they are often not easily absorbed at the site where the drugs are injected, and are often stuck or hardened. Doing so, the stagnant and hardened drug can cause stiffness at the injection site and cause foreign body sensation or pain, and in severe cases, there are problems such as bruising due to bleeding in surrounding tissues.

The present invention solves the above-mentioned problems of the existing injection needle, and provides a multi-outlet injection needle structure provided with a plurality of multi-outlets on the side of the injection needle, thereby distributing the drug evenly over a wide area with an extremely simple and efficient structure. The task is to make it possible to inject.

In addition, through the leak-proof sleeve, in the priming process before invasion, the injection liquid does not leak through the multiple discharge ports, and the sharp tip is not leaked to the outside, so that the mounting process can be safely performed. The problem is to make it easy to determine whether or not to use the sleeve since the sleeve is drawn in and moved.

In order to achieve the above object, the multiple ejection orifice injection needle structure of the present invention is formed with a tip portion 113 for invasion at one end, and one or more multiple ejection orifices 111 are formed in a part of the one side of the side. The inner needle 110; And, in the pre-use state is installed in the direction of the tip of the inner needle 110 so as to cover the multiple discharge port 111, and when invasion, the multiple discharge port 111 is pushed to open to move the leak-proof sleeve 120 ); And, a needle mounting body 130 having a needle fixing portion 131 is fixed to the other end of the inner needle 110; Characterized in that it comprises a.

In addition, the sleeve blocking portion 112 is formed on the outer surface of the inner needle 110, the initial fixing portion 121 of the leak-preventing sleeve 120 is blocked and temporarily fixed in the pre-use state; And, the insertion preventing portion 122 is formed to extend outwardly to the one end of the leak-proof sleeve 120; It characterized in that it is configured to further include.

On the other hand, the inner needle 110 is characterized by consisting of carbon nanotubes.

In the case of the present invention, the problem of the existing injection needle is solved, and the drug is evenly distributed over a wide area with an extremely simple and efficient structure through a multi-outlet injection needle structure provided with a plurality of multiple discharge ports on the side of the injection needle. Since it is possible to inject, there is an advantage that it is possible to efficiently spread and absorb even in the case of an injection solution containing a large component, thereby reducing the occurrence of foreign body sensation, pain, or bruising.

In addition, through the leak-proof sleeve, in the priming process before invasion, the injection liquid does not leak through the multiple discharge ports, and the sharp tip is not leaked to the outside, so that the mounting process can be safely performed. Since the sleeve is pulled in and moved, there is an advantage that it can be easily determined whether to use it.

1: An external perspective view of a multi-outlet injection needle structure according to an embodiment of the present invention.

Figure 2: Cross-sectional structure diagram of a multi-outlet injection needle structure according to an embodiment of the present invention.

Fig. 3 is a view showing various shapes of multiple ejection orifices of a multiple ejection orifice needle structure according to an embodiment of the present invention.

4 is a view showing the operation of the multi-outlet injection needle structure according to an embodiment of the present invention.

* Description of symbols used in drawings *

S: Skin M: Injection

100: multiple ejection needle structure

110: inner needle

111: multiple outlet 112: sleeve stop

113: high tech

120: leak-proof sleeve

121: initial fixing portion 122: insertion prevention portion

130: Needle mounting body

131: needle fixing portion 132: mounting portion

Hereinafter, with reference to the accompanying drawings, a description will be given of a multi-injection injection needle structure according to an embodiment of the present invention in detail. First, it should be noted that, among the drawings, the same components or parts are denoted by the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the subject matter of the present invention.

1, the multi-injection injection needle structure is largely characterized in that it comprises an inner needle 110, a leak-proof sleeve 120, and a needle mounting body 130.

First, the inner needle 110 will be described. 1 and 2, the inner needle 110 has a tip portion 113 for invasion at one end. The tip portion 113 may be composed of one of a variety of sharp shapes to enable invasion of the body, it is also possible that the injection hole is formed in the same way as a conventional injection needle.

As shown in FIGS. 1 and 2, one or more multiple discharge ports 111 are formed in a part of the one side of the side surface of the inner needle 110. In this case, the multiple discharge ports 111 can be implemented in a wide variety of embodiments. That is, the multiple discharge ports 111 may be formed in a circular symmetry to achieve symmetry at a predetermined interval on the same outer circumferential surface of the side surface of the inner needle 110 as shown in (A) in FIG. 3. In addition, as shown in (B) in FIG. 3, the multiple discharge ports 111 may be repeatedly arranged with the circular symmetry arrangement spaced apart at predetermined intervals along the longitudinal direction of the inner needle 110. On the other hand, the multiple discharge port 111 may be formed by varying its size depending on the position of formation, depending on the administration characteristics of the drug to be administered. That is, in the case of having an administration measure in which more chemical liquid is to be injected into the body, the multiple discharge ports 111 formed at a position close to the tip portion 113 (that is, a position inserted deeper into the body) has a relatively large size. It is formed to have, and the multiple discharge ports 111 formed at a distant position in the tip portion 113 may be formed to have a relatively small size.

On the other hand, when the inner needle 110 is composed of carbon nanotubes, as will be described later, the multiple discharge ports 111 in FIG. It is also possible to be implemented to have a shape of a mesh (mesh) as shown in C).

Next, the leak-proof sleeve 120 will be described. The leakage preventing sleeve 120 is installed in the direction of the tip of the inner needle 110 so as to cover the multiple discharge ports 111 in the pre-use state, as shown in FIGS. As shown in Fig. 3, the multiple discharge ports 111 are configured to be pushed and moved to open. That is, in the pre-use state by the leak-proof sleeve 120, as shown in (A) in FIG. 4, the multiple discharge ports 111 may be covered, such as when priming the drug before injection, etc. Since the multiple discharge ports 111 are blocked, it is possible to use the same as the conventional injection needle. On the other hand, in the pre-use state by the leak-proof sleeve 120, it is possible to prevent the sharp tip portion 113 from leaking to the outside, as shown in FIG. The process of mounting the structure 100 to a syringe or the like can be safely performed.

After that, when the body is inserted to invade the body, as shown in FIG. 4 (B), the inner needle 110 is inserted into the body and is inserted, while the leak-proof sleeve 120 has its end portion of the skin ( Since it cannot be inserted in contact with S), the multiple discharge ports 111 are opened while being pushed and moved on the inner needle 110.

When injecting the injection solution in this invasive state, as shown in FIG. 4 (B), since the injection solution M is dispersed and injected over a wide area through the multiple discharge ports 111, the same amount of injection solution is injected. In this case, it is possible to inject a small amount evenly distributed over a wide area as compared to the conventional injection needle where the injection solution is concentrated and injected in only one place. Therefore, even in the case of an injection solution containing a large particle component, efficient diffusion and absorption is possible, thereby reducing the occurrence of foreign body sensation, pain, or bruising. On the other hand, after the injection is completed, since the leak-prevention sleeve 120 remains in a moved state, it is possible to easily determine whether or not to use it, thereby preventing the risk of contamination / infection due to reuse of the injection needle.

In this case, the leak-proof sleeve 120 may be implemented with various materials. In one embodiment to implement the leak-proof sleeve 120, the leak-proof sleeve 120 is effectively in close contact with the multiple discharge ports 111, rubber synthetic resin or silicone having elasticity to prevent leakage of the chemical solution It can be implemented with any one of the materials. On the other hand, the inner surface of the leak-preventing sleeve 120 in contact with the inner needle 110 reduces the abrasion force, such as Teflon, so that it can be smoothly pushed and moved during an invasive operation, along with efficient leak prevention of the chemical solution. It is desirable to be coated with a material that can.

On the other hand, as shown in Figure 2, so that the leak-prevention sleeve 120 can be more stably temporarily fixed to the inner needle 110 in the state before use, the outer surface of the inner needle 110 is In the pre-use state, it is preferable that the initial fixing part 121 formed on the leak-preventing sleeve 120 is prevented and the sleeve blocking part 112 temporarily fixed is further formed. In this case, the initial fixing part 121 and the sleeve blocking part 112 may be implemented in various shapes or structures. As an embodiment of implementing the initial fixing part 121 and the sleeve blocking part 112, the initial fixing part 121 is formed in a groove shape on the inner circumferential surface of the leak-preventing sleeve 120 as shown in FIG. 2. It is configured to be recessed, the sleeve stopper 112 may be implemented in a protruding shape that can be introduced into the initial fixing portion 121 correspondingly.

Meanwhile, at one end of the leak-proof sleeve 120, the outer side as shown in FIGS. 1 and 2 so that the leak-proof sleeve 120 can be pushed and moved more reliably by the user's skin S upon insertion. It is preferable that the insertion preventing portion 122 formed by being expanded is further formed.

Next, the needle mounting body 130 will be described. The needle mounting body 130 is configured to have a function to enable mounting of the multiple ejection orifice injection needle structure 100 of the present invention to various injection devices or injection liquid ampoule containers, as shown in FIGS. 1 and 2 It is configured to include a needle fixing portion 131 to which the other end of the inner needle 110 is fixed. On the other hand, the needle mounting body 130 may be provided with a mounting portion 132 configured to correspond to the configuration of the injection needle mounting portion of each injection device or ampoule container to enable mounting on various injection devices or injection liquid ampoule containers. Do. The technology for the configuration of the needle mounting body 130 is a level of technology that is widely known and used in the art to which the present invention pertains, and thus detailed description is omitted.

In the above, exemplary embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are only used for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims

The inner needle 110 is formed with a tip portion 113 for invasion at one end, and one or more multiple discharge ports 111 are formed in a part of one side of the side surface;

In the pre-use state, it is installed in the direction of the tip of the inner needle 110 so as to cover the multiple discharge ports 111, and when invading, the multiple discharge ports 111 are pushed to open so as to prevent the leak sleeve 120 from moving;

A needle mounting body 130 having a needle fixing portion 131 to which the other end of the inner needle 110 is fixed; Multiple outlet injection needle structure 100, characterized in that it comprises a.
The method according to claim 1,

A sleeve blocking portion 112 formed on an outer surface of the inner needle 110, the initial fixing portion 121 of the leak preventing sleeve 120 being blocked and temporarily fixed in the pre-use state;

An insertion preventing portion 122 formed to extend outwardly at the one end of the leak preventing sleeve 120; Multiple ejection orifice needle structure 100, characterized in that further comprises a.
The method according to claim 1 or 2,

The inner needle 110 is a multi-dispensing injection needle structure 100, characterized in that consisting of carbon nanotubes.