Needle module and subcutaneous drug injector using same

Abstract

The present invention may provide a needle module, a needle assembly including same, and a subcutaneous drug injector using same. The needle module may comprise: a body unit which has an opening formed on one side thereof, has an inner space communicating with the opening, and has an injection hole formed through the other side thereof and communicating with the inner space so that a drug is injected into the inner space through the injection hole; a needle module which is coupled to needles to support the needles and is inserted into and coupled to the inner space so that a drug injected into the inner space is supplied to the needles; and a head cover unit coupled to the opening to seal the one opened side of the body unit and having through-holes through which the needles pass so that the upper portions of the needles can be exposed. According to the foregoing, a thin needle can be easily installed on a needle base, thereby making the manufacturing of the needle module easier. Furthermore, the needle module can stably support the thin needle, and thus can have enhanced durability and be easily maintained.

Description

Needle module and subcutaneous drug injector using the same

[0001] The present invention relates to a needle module and a subcutaneous drug injector using the same, and more particularly, to a needle module that is easy to manufacture and maintain, and a subcutaneous drug injector using the same.

[0002] In general, the method of administering drugs through the skin is to administer drugs systemically or locally without going through the digestive tract. This method can reduce gastrointestinal side effects and can achieve sufficient efficacy with a smaller dose than drugs administered orally.

[0003] Meanwhile, a method of administering drugs through the skin is to administer drugs for skin beauty or treatment, such as wrinkle removal, acne removal, exfoliation, and hair loss treatment, into the patient's body non-oral, using a drug injection device that injects drugs into the skin. A needle-type syringe is commonly used as this drug injection device.

[0004] When injecting drugs into the skin using this needle-type syringe, it can be configured to directly inject the drug by pricking the skin with a syringe equipped with an injection needle. When injecting drugs into the skin using this syringe, it is common to hold the syringe body (barrel) and plunger with one hand and push the plunger to inject the drug.

[0005] However, these conventional subcutaneous drug injectors are not only difficult to manufacture because they use very thin needles with very small diameters, but also have weak structures that support the needles, which can cause deformation such as bending of the needles during the manufacturing process, which can lower the reliability of the product and make stable manufacturing and production difficult.

[0006] The present invention aims to provide a needle module that is easy to manufacture and can stably support a needle, thereby improving durability and product reliability and facilitating maintenance, a needle module including the same, and a subcutaneous drug injector using the same.

[0007] According to one aspect of the present invention, a needle module is provided, comprising: a needle part including a plurality of needles formed to be capable of injecting a drug in a tubular shape; a needle base having one end open and a plurality of needle holes formed through the bottom surface of the other end; a coupling part having a coupling hole formed through the needle base and having a lower portion coupled to an inner bottom surface of the needle base so that the coupling hole and the needle hole are in communication with each other; a support part having a communication hole formed to be inserted into the coupling hole and communicate with the needle hole, and a lower portion of the needle being inserted into the communication hole to support the needle; and an adhesive part having an adhesive filled into the inner bottom surface of the needle base to adhesively couple the needle base and the coupling part to each other.

[0008] Here, the connecting portion can be formed so that the diameter becomes smaller as it goes upward.

[0009] According to another aspect of the present invention, a subcutaneous drug injector is provided, comprising: a main body part having an opening formed on one side, an internal space formed inside the main body part communicating with the opening, and an injection port formed through the main body part communicating with the internal space on the other side and through which a drug is injected into the internal space; a needle module that supports the needles by combining the needles and is inserted into the internal space so that the drug injected into the internal space is supplied to the needles; and a head cover part that is combined with the opening to seal the open side of the main body part and has through holes formed through which the needles pass so that the upper portions of the needles are exposed.

[0010] The needle module may be configured to include a needle base having one side open and the other side bottom surface inserted and coupled into the inner space so that it is settled on the inner bottom surface of the inner space, and a plurality of needle holes formed through the other side bottom surface, a coupling portion having a coupling hole formed through the other side and having a lower portion coupled to the inner bottom surface of the needle base so that the coupling hole and the needle hole are in communication with each other, a support portion having a communication hole formed that is inserted and coupled into the coupling hole and communicates with the needle hole, and a lower portion of the needle is inserted into the communication hole to support the needle, and an adhesive portion filled with an adhesive into the inner bottom surface of the needle base to adhesively couple the needle base and the coupling portion to each other.

[0011] The above main body part may have a guide path formed on the inner bottom surface of the internal space to guide the drug injected through the injection port to flow into the needle hole.

[0012] The needle module according to the present invention and the subcutaneous drug injector using the same can precisely and accurately install a thin needle on a needle base, and can improve manufacturability and productivity by facilitating installation. In addition, the needle module can stably support a thin needle, thereby improving durability and facilitating maintenance.

[0013] Figure 1 is a perspective view showing a subcutaneous drug injector according to an embodiment of the present invention when viewed from below.

[0014] Figure 2 is a perspective view showing a subcutaneous drug injector according to an embodiment of the present invention when viewed from above.

[0015] Figure 3 is a perspective view showing the main body of a subcutaneous drug injector according to an embodiment of the present invention.

[0016] Figure 4 is a plan view showing a guide path of a main body in a subcutaneous drug injector according to an embodiment of the present invention.

[0017] FIG. 5 is a perspective view showing a needle module coupled to a main body in a subcutaneous drug injector according to an embodiment of the present invention.

[0018] Figure 6 is a perspective view showing a needle module in a subcutaneous drug injector according to an embodiment of the present invention.

[0019] Fig. 7 is a cross-sectional view showing a needle base in a needle module according to an embodiment of the present invention.

[0020] Figure 8 is an exploded cross-sectional view of the needle base, the joint portion, the support portion, and the needle portion in a needle module according to an embodiment of the present invention.

[0021] Figure 9 is a perspective view showing a head cover portion of a subcutaneous drug injector according to an embodiment of the present invention.

[0022] Figure 10 is a perspective view showing a subcutaneous drug injector having a housing and a supply unit.

[0023] Hereinafter, a preferred embodiment of the present invention will be described with reference to the attached drawings to enable a more specific understanding of the present invention.

[0024] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated and described in detail in the drawings. However, this is not intended to limit the present invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0025] While terms such as "first" and "second" may be used to describe various components, these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a "second component," and similarly, a second component may also be referred to as a "first component." The term "and / or" includes a combination of multiple related items described herein or any of multiple related items described herein.

[0026] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0027] The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprise" or "have" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0028] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0029] Hereinafter, with reference to the attached drawings, preferred embodiments of the present invention will be described in more detail. In order to facilitate an overall understanding in describing the present invention, identical reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted.

[0030] Referring to FIGS. 1 and 2, a subcutaneous drug injector according to an embodiment of the present invention may be configured to include a needle portion (100), a main body portion (200), a needle module (300), and a head cover portion (400).

[0031] First, the needle part (100) includes a plurality of needles (110), and each needle (110) can be formed in a tubular shape to inject a drug.

[0032] The above needle portion (100) can be arranged radially at even intervals with respect to the needle module (300), as shown.

[0033] Referring to FIG. 3, the main body (200) has a roughly cup-shaped shape with one side open, an opening (220) formed on one side, an internal space (210) formed inside that is connected to the opening (220), and an injection port (230) formed through the other side that is connected to the internal space (210) and through which a drug is injected into the internal space (210).

[0034] Here, the injection port (230) may be formed to protrude outward from an injection hole formed through the central portion of the other side of the main body (200), and may be formed in a cylindrical shape as shown.

[0035] Meanwhile, a connecting screw (250) that can be detachably connected to a device such as a subcutaneous drug injector can be formed on the outer surface of the injection port (230).

[0036] Furthermore, the main body (200) may be formed in a cylindrical shape with one side open as shown, but this is only one embodiment and the shape may be formed in various ways.

[0037] The main body (200) may have a guide path (240) formed on the inner bottom surface of the inner space (210) to guide the drug injected through the injection port (230) into the inner space (210) to flow along the inner bottom surface to the needle hole (311).

[0038] Referring to FIG. 4, first, the needles (110) are arranged radially and evenly spaced apart, and thus the guide path (240) can be formed radially around the injection port (230) corresponding to the formation position of the needle hole (311).

[0039] In detail, the above guide path (240) may be configured to include a first guide path (241) and a second guide path (242).

[0040] The above first guide path (241) may be arranged in a straight line with one end connected to the injection port (230) at the center and spaced radially at a set angle from the injection port (230).

[0041] The second guide channel (242) may be formed in a plurality of rings spaced apart along a set diameter centered on the injection port (230) and connected to the first guide channel (241).

[0042] According to the above, the main body (200) can ensure that the drug supplied from the injection port (230) through the guide channel (240) is supplied evenly and smoothly to each needle (110) and can induce rapid supply of the drug to each needle (110).

[0043] The needle module (300) supports the needles (110) by combining the needles (110) and is inserted into the internal space (210) of the main body (200) so that the drug injected into the internal space (210) of the main body (200) can be supplied to the needles (110).

[0044] Referring to FIGS. 5 and 6, the needle module (300) may be configured to include a needle base (310), a coupling portion (314), a support portion (320), and an adhesive portion (330).

[0045] First, the needle base (310) is inserted and joined into the internal space (210) in a cup shape with one side open and the other side bottom surface being secured to the inner bottom surface of the internal space (210), and a plurality of needle holes (311) can be formed through the other side bottom surface.

[0046] The needle base (310) may have a plurality of insertion protrusions (312) formed along the lower outer surface in order to be inserted and connected into the inner space (210) of the main body (200), and the insertion protrusions (312) may be detachably inserted and connected into insertion grooves (260) formed on the inner surface of the main body (200).

[0047] Furthermore, the needle base (310) is coupled with a head cover part (400) to be described later so as to seal an open side, and coupling grooves (313) may be formed along the upper outer surface to be coupled with the coupling protrusions (410) of the head cover part (400).

[0048] The above-mentioned connecting portion (314) may be formed with a lower portion on the inner bottom surface of the needle base (310) such that a connecting hole (315) is formed through it and the connecting hole (315) and the needle hole (311) are connected to each other.

[0049] Here, it is preferable that the connecting portion (314) be formed integrally with the needle base (310) as shown.

[0050] Referring to Fig. 7, the connecting portion (314) may be formed to be tapered so that the outer diameter becomes smaller as it goes upward.

[0051] Meanwhile, the needle (110) used in the subcutaneous drug injector is formed as a very thin needle with a very small diameter due to its nature. Therefore, such a thin needle (110) has manufacturing difficulties such as bending when combined with the corresponding component, and its physical state is easily deformed during manufacturing, making it difficult to manufacture it precisely and accurately.

[0052] Accordingly, the needle module (300) of the present invention can precisely and accurately assemble and combine even a needle (110) having a very small diameter, thereby improving manufacturability and productivity, and can be configured to include a support member (320) for stably supporting and protecting the needle (110) as well as combining the needle (110) in a vertical state without deformation of shape.

[0053] Referring to Fig. 8, the support member (320) may be inserted into the coupling hole (315) in a tubular shape and a communication hole (321) communicating with the needle hole (311) may be formed.

[0054] The above support member (320) supports the needle (110) by inserting the lower portion of the needle (110) into the communication hole (321), and can enable the drug supplied through the communication hole (321) to be supplied to the needle (110).

[0055] The above support portion (320) is preferably formed at a lower height than the upper portion of the needle base (310), and is preferably embedded by the adhesive portion (330).

[0056] The above adhesive portion (330) can be formed by filling the inner bottom surface of the needle base (310) with adhesive.

[0057] Here, the adhesive portion (330) may be filled with an adhesive into the inner bottom surface of the needle base (310) so that the connecting portion (314) and the supporting portion (320) are embedded, thereby allowing the needle base (310), the connecting portion (314), and the supporting portion (320) to be adhesively bonded to each other.

[0058] The above adhesive portion (330) may use epoxy resin, but various configurations may be applied as long as the above-mentioned purpose can be achieved.

[0059] Referring to FIG. 9, the head cover part (400) is coupled to the opening (220) to seal the open side of the main body part (200), and through holes (401) through which the needles (110) pass can be formed so that the upper portions of the needles (110) can be exposed.

[0060] The above head cover part (400) may be provided with a fitting means (420) for being coupled with the main body part (200), and the fitting means (420) may be fitted into a fitting hole (270) of the main body part.

[0061] Meanwhile, the subcutaneous drug injector may be configured to include a cover cap (500, see Fig. 1) that is coupled to the head cover part (400) to seal and protect the head cover part (400).

[0062] Here, the cover cap (500) may be formed in a cup shape to surround the outer circumferential side of the main body (200) including the head cover portion (400), and may be detachably fitted with the head cover portion (400).

[0063] Meanwhile, the needle module (300) of the present invention is preferably applied to a subcutaneous drug injector as described above, but can be applied to various other configurations that can inject fluid using a needle (110).

[0064] Figure 10 is a drawing showing another embodiment of a subcutaneous drug injector. Referring to the drawing, the subcutaneous drug injector may be configured to include a housing (20), a supply unit (30), and a needle assembly (10).

[0065] Meanwhile, the needle assembly (10) described above is configured to include the needle portion (100), the main body portion (200), the needle module (300), and the head cover portion (400), and a detailed description thereof will be omitted.

[0066] The housing (20) is formed so that the user can grip it, has a receiving space formed therein to receive the supply unit (30), and the needle assembly (10) can be coupled to the tip.

[0067] The above supply unit (30) is provided in the above-mentioned receiving space and may be configured to supply a drug according to the user's operation. The supply unit (30) may be configured to discharge a drug when the user presses the pressure unit (21). A detailed description thereof will be omitted as the configuration of a known subcutaneous drug injector can be applied.

[0068] While the present invention has been described with reference to the embodiments illustrated in the drawings, these are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent alternative embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the appended claims.

[0069] It can be applied to the subcutaneous drug injection port of the present invention.

Claims

1. A needle base having one side open and a plurality of needle holes formed through the bottom surface on the other side; A joint part having a lower portion formed on the inner bottom surface of the needle base so that a joint hole is formed through it and the joint hole and the needle hole are connected to each other; A support part that is inserted into the above-mentioned joining hole and has a communication hole that communicates with the needle hole, and the lower part of the needle is inserted into the communication hole to support the needle; A needle module characterized by including an adhesive portion filled with an adhesive on the inner bottom surface of the needle base to adhesively bond the needle base, the connecting portion, the support portion, and the needle to each other.

2. In paragraph 1, The above joint is, A needle module characterized by being formed so that the outer diameter becomes smaller as it goes toward the top.

3. A main body part having an opening formed on one side, an internal space formed inside that is connected to the opening, and an injection port formed through the opening that is connected to the internal space on the other side and through which a drug is injected into the internal space; A needle module that is inserted and coupled into the internal space so that the needles are combined to support the needles and the drug injected into the internal space is supplied to the needles; A subcutaneous drug injector characterized by comprising a head cover part coupled to the opening to seal an open side of the main body part and having through holes formed through which the needles pass so that the upper portions of the needles can be exposed.

4. In paragraph 3, The above needle module, A needle base having one side open and the other side bottom surface inserted into the inner space so that it is settled on the inner bottom surface of the inner space, and a plurality of needle holes formed through the other side bottom surface, A joint part formed on the inner bottom surface of the needle base so that a joint hole is formed through it and the joint hole and the needle hole are connected to each other; A support part that is inserted into the above-mentioned joining hole and has a communication hole that communicates with the needle hole, and the lower part of the needle is inserted into the communication hole to support the needle; A subcutaneous drug injector characterized in that it includes an adhesive portion filled with an adhesive on the inner bottom surface of the needle base to adhesively connect the needle base, the connecting portion, the supporting portion, and the needle to each other.

5. In paragraph 4, The above main body part, A subcutaneous drug injector characterized in that a guide path is formed on the inner bottom surface of the internal space to guide the drug injected through the injection port to flow into the needle hole.

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