KR20240082844A - Micro needle apparatus - Google Patents

Abstract

A microneedle device is disclosed. A microneedle device according to an embodiment of the present invention includes a needle module that penetrates into the skin of a person receiving the treatment; a housing in which the needle module is arranged to be able to advance and retract, the lower surface of which is in contact with the skin of the recipient; A driving unit that advances and retracts the needle module; A conductive module including a first cable and a second cable, wherein the needle module is electrically connected to the first cable, and the lower surface of the housing is electrically connected to the second cable. According to the present invention, a microneedle device is provided that can apply high frequencies to the needle in a monopolar manner, prevent electricity from being applied throughout the entire body of the recipient, and apply high frequencies intensively to the target area.

Description

Micro needle device {MICRO NEEDLE APPARATUS}

The present invention relates to a microneedle device, and more specifically, to a microneedle device that applies high frequency waves by inserting a needle into a target point within the skin, and maximizes the effect by applying the high frequency waves intensively to the target area. .

For modern people, whose interest in skin care is rapidly increasing, various methods are being tried to treat the skin, such as acne treatment, pore reduction, wrinkle removal, scar removal, and anti-aging.

In general, when cosmetics or drugs are delivered through the skin, the absorption rate is very low because it is difficult for the drug to penetrate the stratum corneum.

For this reason, mesotherapy, a manual method of injecting drugs into the skin using a syringe or the like, is widely used. Mesotherapy is a procedure in which various drug ingredients needed for the treatment area are properly mixed and injected directly using a microneedle, a fine injection needle. In other words, the drug is injected directly into the skin layer.

However, this method not only requires high drug consumption due to the procedure, but the treatment cost is high, and many side effects occur depending on the constitutional characteristics of the people, resulting in the problem of adverse effects on the skin.

Accordingly, a microneedle device has been disclosed that can increase the effect of drug treatment by applying high frequency directly to the treatment area to activate cells or blood vessels and then injecting drug to promote activation of skin cell tissue.

The high-frequency oscillation method involves invading a single to plural microneedles into the deep part of the skin (for example, the dermal layer) at a target point (for example, the face) and then applying an electric current. As a result, high frequencies are oscillated in the deep part of the skin, and collagen and elastic fibers damaged by the heat energy generated by the high frequency oscillations are removed and new collagen and elastic fibers can be formed. Furthermore, high-frequency oscillation in the deep skin is also effective in improving skin pigmentation, acne marks, and wrinkles.

Microneedle devices that oscillate high frequencies are divided into a bipolar type in which a plurality of needles have two polarities, and a monopolar type in which a plurality of needles have one polarity and a ground electrode is provided separately.

In the monopolar microneedle device, a ground electrode pad is attached to the patient's back or stomach, and current is applied to the needle, so that the current flows back from the needle to the ground electrode pad. Accordingly, electricity is applied throughout the entire body of the recipient, and there is a disadvantage in that high frequencies are oscillated over a wider range than the target area.

Republic of Korea Patent No. 10-1066883 (2011.09.16) “Current-applied multi-injection needle and automatic injection device” Republic of Korea Patent No. 10-1656660 (2016.09.06) “Needle module for skin treatment that can use drugs and high frequency”

The purpose of the microneedle device according to an embodiment of the present invention is to provide a microneedle device that can maximize the effect by applying high frequency by inserting the needle into the target point within the skin and applying the high frequency intensively to the target area. Do this.

In addition, the microneedle device according to an embodiment of the present invention is a microneedle that applies high frequency to the needle in a monopolar manner, prevents electricity from being applied throughout the entire body of the person being treated, and applies high frequency intensively to the target area. The purpose is to provide a device.

In addition, the microneedle device according to an embodiment of the present invention allows the microneedle to be inserted into the skin in an oblique direction, so that a fixed amount of drug can be injected into the skin even when the drug is injected at a shallow depth from the skin surface. The purpose is to provide a microneedle device.

In addition, the purpose of the microneedle device according to one embodiment of the present invention is to provide a microneedle device capable of both drug injection and high frequency application through a needle module.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A microneedle device according to an embodiment of the present invention includes a needle module that penetrates into the skin of a person receiving the treatment; a housing in which the needle module is arranged to be able to advance and retract, the lower surface of which is in contact with the skin of the recipient; A driving unit that advances and retracts the needle module; A conductive module including a first cable and a second cable, wherein the needle module is electrically connected to the first cable, and the lower surface of the housing is electrically connected to the second cable.

Here, the skin fixing part is mounted on the housing and fixes the front of the skin of the patient in contact with the housing, and the skin fixing part is electrically connected to the second cable.

Here, high-frequency power is applied to the needle module, and at least one of the lower surface of the housing and the skin fixation part serves as a ground electrode.

Here, the lower surface of the housing and the lower surface of the skin fixing unit may be made of a conductive material.

Here, an electrode member may be attached to the lower surface of the housing and the lower surface of the skin fixation unit.

Here, the skin fixation unit includes a pair of support bars mounted on the housing and spaced apart from each other; It may include a skin contact portion that connects the lower portions of the pair of support bars to each other and is electrically connected to the second cable.

Here, a pair of torsion bars mounted on the housing and having a restoring force toward the needle; It may include a skin contact portion mounted on a lower portion of the pair of torsion bars and electrically connected to the second cable.

Here, a fixing protrusion and a support spring fixing part are protrudingly formed on one surface of the housing, and the skin fixing part includes a sliding body portion having a fixing groove formed on the rear side into which the fixing protrusion is inserted; a skin contact portion coupled to the lower surface of the sliding body, having a support spring receiving groove formed on the upper surface, and electrically connected to the second cable; The upper end is fixed to the support spring fixing part, the lower end is fixed to the support spring receiving groove, and may include a support spring having a downward restoring force.

Here, a plate is formed on the lower surface of the housing through which a needle penetrates and is in contact with the skin, and an electrode member may be formed on the plate.

Here, it may further include a drug supply unit that supplies drug to the needle module.

Here, the needle module includes a plurality of needles and a fixing part in which the plurality of needles are fixed while forming an inclination with the vertical direction, and the driving part includes: a rod part moving in the vertical direction by a first motor; It may include a moving part that is installed at the rear end of the fixing part and moves the needle module forward and backward in an inclination direction of the needle as the rod part moves in the vertical direction.

Here, the drug supply unit includes a syringe body accommodating the drug therein; and a piston that is raised and lowered by a second motor, wherein an internal space of the moving unit communicates with an internal space of the fixing unit, and the syringe body A drug injection portion connected to the end of the tube may be formed.

According to embodiments of the present invention, there are at least the following effects.

According to the microneedle device according to an embodiment of the present invention, a high frequency is applied to the needle in a monopolar manner by penetrating the needle into a target point inside the skin, and by forming a ground electrode on the surface above the target point, the entire body of the recipient is affected. It prevents electricity from being passed through and applies high frequency waves intensively to the target area.

In addition, since there is no need for a ground electrode pad attached to the patient's back or stomach, the configuration is simple and the procedure is easier.

Additionally, even when the microneedle is inserted into the skin in an oblique direction and the needle is inserted at a shallow depth within the skin, the entire tip of the needle can be inserted into the skin.

In addition, even when injecting a drug at a shallow depth within the skin by inserting the microneedle into the skin in an oblique direction, the entire amount of drug can be injected into the skin.

In addition, both drug injection and high frequency application to the treatment area can be performed through the needle module.

In addition, by allowing electricity to pass between the structure that fixes the skin and the needle, high frequencies can be applied intensively to the target area while accurately targeting the treatment area.

The effects according to the present invention are not limited to the contents exemplified above, and further various effects are included in the present specification.

1 is a schematic perspective view of a microneedle device according to a first embodiment of the present invention.
2 and 3 are schematic side views of the microneedle device according to the first embodiment of the present invention.
Figure 4 is a schematic exploded perspective view of the needle module of the microneedle device according to the first embodiment of the present invention.
Figure 5 is a perspective view of the main part of the housing of the microneedle device according to the first embodiment of the present invention.
Figure 6 is a perspective view of the moving part of the microneedle device according to the first embodiment of the present invention.
Figure 7 is a diagram illustrating the effect of the microneedle device according to the first embodiment of the present invention
Figure 8 is a schematic side view of a first modification of the microneedle device according to the first embodiment of the present invention.
Figure 9 is a schematic perspective view of a second modification of the microneedle device according to the first embodiment of the present invention.
Figure 10 is a rear perspective view of the skin fixing portion of the second modification of the microneedle device according to the first embodiment of the present invention.
11 is a schematic side view of a microneedle device according to a second embodiment of the present invention.
Figure 12 is a rear perspective view of the fixing part of the microneedle device according to the second embodiment of the present invention.

The present invention can be modified in various ways and can have various embodiments. Specific embodiments will be illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Prior to explanation, terms used in the detailed description will be explained. In the following embodiments, terms such as first and second are used not in a limiting sense but for the purpose of distinguishing one component from another component. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention. Additionally, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as 'include' or 'have' mean the presence of features, numbers, steps, operations, components, parts, or a combination thereof described in the specification, and one or more other features or components. This does not preclude the possibility of addition.

Additionally, in the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are shown arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is shown.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the attached drawings. In the description with reference to the accompanying drawings, identical or corresponding components are assigned the same reference numerals and duplicate descriptions thereof are omitted.

The microneedle device according to the first embodiment of the present invention is a microneedle device that applies high frequencies to the needle in a monopolar manner, prevents electricity from being applied throughout the entire body of the person being treated, and applies high frequencies intensively to the target area. It's about.

Figure 1 is a schematic perspective view of a microneedle device according to a first embodiment of the present invention, Figures 2 and 3 are schematic side views of a microneedle device according to a first embodiment of the present invention, and Figure 4 is a schematic side view of a microneedle device according to a first embodiment of the present invention. It is a schematic exploded perspective view of the needle module of the microneedle device according to the first embodiment of the present invention, and Figure 5 is a perspective view of the main portion of the housing of the microneedle device according to the first embodiment of the present invention.

The microneedle device 1000 according to the first embodiment of the present invention includes a housing 100, a needle module 200, a driving unit 300, a skin fixing unit 400, and a conductive module 500. do.

The housing 100 is a configuration in which components such as the needle module 200 and the driving unit 300 are arranged. The lower surface of the housing 100 is in contact with the skin. During the procedure, the operator places the lower surface of the housing 100 in close contact with the skin and then advances the needle module 200 through the drive unit 300 to perform the procedure.

The housing 100 can have various shapes as long as the needle module 200 can be accommodated and moved forward and backward. Accordingly, in the drawings, the housing 100 is shown in various shapes for convenience of explanation.

The needle module 200 may include a needle 210, a fixing part 220, and a needle guide 230 (see FIG. 5). A plurality of needles 210 are provided and mounted on the fixing part 220. In this embodiment, the needle 210 may be mounted to form an incline with the lower surface of the housing 100.

The number of needles 210 is not limited to that shown in the drawing, and of course the number of needles 210 can be increased or decreased as needed. In addition, although a plurality of needles 210 are shown as being arranged in one row, they may also be arranged in a plurality of rows, and further, adjacent needles 210 may be arranged to stagger each other.

The needle module 200 advances and retreats along the inclined direction of the needle 210 by the driving unit 300. Accordingly, it is not inserted perpendicularly to the surface of the skin, but is inserted with a predetermined inclination. In this embodiment, it is provided to be inserted at an angle of 25° with respect to the skin, but is not necessarily limited thereto. That is, it is inserted into the skin while forming a predetermined slope with respect to the skin surface, and the insertion angle can be set differently as needed.

A needle insertion portion 221 into which each needle 210 is inserted and fixed may be formed in the fixing portion 220. The needle insertion portion 221 is formed in the above-described diagonal direction so that the needle 210 is fixed along the diagonal direction.

A protrusion 222 may be formed on the rear of the fixing part 220. The protrusion 222 may be inserted into and fastened to the moving part 320.

The needle guide 230 is a component that guides the movement of the needle 210, and is disposed at the front end of the needle 210 in this embodiment. A semicircular first groove 231 corresponding to the number of needles 210 may be formed on the lower surface of the needle guide 230. The needle guide 230 is disposed in the housing 100, and can form an overall circular guide groove by the semicircular second groove 110 formed in the housing 100.

The driving unit 300 is a component that moves the needle module 200 forward and backward and includes a rod unit 310 and a moving unit 320.

The rod unit 310 is configured to form an inclination at a predetermined angle with respect to the skin surface and move the needle module 200 in an incline direction so that the needle 210 is inserted. The rod unit 310 includes a first motor 311, a first ball screw 312, and a rod 313.

The first ball screw 312 includes a first screw 312a and a first nut 312b. The first nut 312b is mounted on the first screw 312a and is raised and lowered by the first motor 311, and the first ball screw 312 may be a known ball screw.

In this embodiment, the first screw 312a may be arranged in a vertical direction. And a first motor 311 is installed above the first screw 312a, and the first screw 312a rotates by driving the first motor 311, thereby lifting the first nut 312b.

The rod 313 is configured to move the needle 210 in an inclined direction while moving in the vertical direction by driving the first motor 311. Rod 313 is fixed to the first nut 312b. And a first inclined portion 313a may be formed at the bottom of the rod 313.

Figure 6 is a perspective view of the moving part of the microneedle device according to the first embodiment of the present invention.

The moving unit 320 is configured to move the needle module 200 forward and backward in the inclined direction of the needle 210 as the rod 313 moves in the vertical direction. The moving part 320 is coupled to the rear end of the fixing part 220.

A second inclined portion 321 corresponding to the first inclined portion 313a of the rod 313 may be formed in the moving unit 320. Accordingly, when the first motor 311 is driven and the rod 313 is lowered by the first ball screw 312, the first inclined portion 313a and the second inclined portion 321 come into contact, and the first inclined portion 313a comes into contact with the second inclined portion 321. When the part 313a presses the second inclined part 321, the moving part 320 slides along the inclined direction of the needle 210, and the needle module 200 coupled to the moving part 320 moves the needle 210. ) can move forward along the direction of the slope.

As the operation of the first motor 311 is precisely controlled, the needle module 200 can be inserted into the skin only to the target depth, and even when the insertion depth is shallow, the inclined surface of the tip of the needle 210 is the surface of the skin. Since it is parallel to the needle 210, the entire tip can be inserted into the skin.

Meanwhile, the moving part 320 includes a support part 322. The support portion 322 is configured to return the advanced needle module 200 to its original position. In this embodiment, the support parts 322 are provided as a pair and are disposed on both sides or the lower surface of the moving part 320, and include a spring 323 having a restoring force in the retreating direction of the moving part 320. The spring 323 is disposed in the spring receiving groove 120 of the housing 100. When the first inclined portion 313a presses the second inclined portion 321, the moving portion 320 slides along the inclined direction of the needle 210 and the spring 323 is compressed, and the first motor 311 When the rod 313 rotates in reverse and moves upward, the contact between the first inclined portion 313a and the second inclined portion 321 is released, the spring 323 is restored, and the needle module 200 returns to its original position. do.

The skin fixing unit 400 fixes the treatment area and guides the penetration area of the needle 210. In other words, it is a configuration that fixes the skin area where the needle 210 penetrates and allows the needle 210 to penetrate into the target point more precisely.

As shown, the needle module 200 forms an inclination and penetrates into the skin, so the lower surface of the housing 100 is in close contact with the skin surface behind the target point, and the skin fixing unit 400 is located above the target point. adheres closely to the skin surface.

The skin fixing part 400 includes a pair of support bars 410 and a skin contact part 420.

A pair of support bars 410 are spaced apart from each other, one end of each is mounted on the housing 100, and the other end is disposed in front of the housing 100 to form an incline. The skin contact portion 420 connects the lower portions of the pair of support bars 410 to each other.

If only the lower surface of the housing 100 is in close contact with the skin of the recipient, the treatment area may not be fixed uniformly due to a sliding phenomenon or the like. However, since the skin fixing part 400 is installed, not only the lower surface of the housing 100 but also the lower surface of the skin contact part 420 is in contact with the skin, so that the needle 210 can be accurately targeted to be inserted into the treatment area. For example, first, with the skin contact portion 420 in close contact with the front of the treatment area, the lower surface of the housing 100 is brought into close contact with the body, and the first motor 311 is driven to insert the needle 210 into the treatment area. You can target as accurately as possible.

Figure 7 is a diagram illustrating the effect of the microneedle device according to the first embodiment of the present invention.

The conductive module 500 is configured to apply high frequency to the target area through the needle module 200.

The conductive module 500 may include a first cable 510 and a second cable 520. The conductive module 500 is configured to connect the high-frequency power source 30, the needle module 200, and the lower surface/skin contact portion 420 of the housing 100.

The electronic control module 40 may be installed in the main body 10 equipped with a display module and an operation module 20. The display module is manufactured in the form of a panel and can visually provide various information to the operator. As an example, the display module may display the output amount or impedance of high frequency waves currently applied to the dermis layer at the target point in a graph. Additionally, the display module may display the operation mode in which the microneedle device 1000 according to this embodiment is currently in progress. Additionally, the display module may display biometric information of deep skin tissue at the target point.

The manipulation module 20 may be provided in the form of a button on the outer surface of the main body 10. The operator can turn the microneedle device 1000 on/off, select an operation mode of the microneedle device 1000, and change the amount of high frequency output applied to the target point through the manipulation module 20.

The electronic control module 40 is a component that electronically controls the components of the microneedle device 1000 according to the operator's manipulation. Current may be applied from the high-frequency power source 30 to the needle module 200 by the electronic control module 40.

The first cable 510 of the conductive module 500 electrically connects the high-frequency power source 30 and the needle module 200 to each other. The second cable 520 connects the high frequency power source 30 and the lower surface of the housing 100 and/or the skin contact portion 420. That is, the second cable 520 may be connected to both the lower surface of the housing 100 and the skin contact portion 420, or to only one of them. When the second cable 520 is connected to both the lower surface of the housing 100 and the skin contact portion 420, both of the above configurations can perform the ground electrode function as described later, or only one can optionally perform the ground electrode function. You can.

The lower surface of the housing 100 and the skin contact portion 420 function as a ground electrode. An electrode member may be attached to the lower surface of the housing 100 and the skin contact portion 420 to perform a ground electrode function, or the material itself may be a conductive material that can be used as an electrode member.

The current applied from the high frequency power source 30 through the electronic control module 40 is applied to the electrodes of the plurality of needles 210 of the needle module 200 through the first cable 510. And the lower surface of the housing 100 and/or the skin contact portion 420 is electrically grounded through the second cable 520.

Accordingly, the current applied from the high-frequency power source 30 is applied to the electrodes of the plurality of needles 210 through the first cable 510, and is refluxed to the lower surface of the housing 100 and/or the skin contact portion 420. That is, a high-frequency current can be applied to the needle 210 in a monopolar manner.

As a result, high frequency waves are generated in the deep part of the skin at the target point and heat energy can be dissipated. Collagen and elastic fibers damaged by the heat energy generated by high frequency generation can be removed and new collagen and elastic fibers can be formed.

Specifically, in this embodiment, the high-frequency current is passed from the tip of the needle 210 inserted into the skin to the lower surface of the housing 100 and/or the skin contact portion 420 in contact with the skin surface.

Conventionally, a ground electrode pad is attached to the back or stomach of a separate patient, and current is applied to the needle 210, so that the current flows back from the needle 210 to the ground electrode pad. Accordingly, electricity is passed throughout the entire body of the recipient, and high frequencies are oscillated over a wider area than the target area.

In this embodiment, when the skin contact portion 420 functions as a ground electrode, the high-frequency current is passed only from the tip of the needle 210 that penetrates the target point to the skin surface above the target point, so the high frequency is transmitted to the target point. It can be approved intensively. In other words, instead of energizing the subject's entire body, which is a disadvantage of the conventional monopolar method, electricity is applied only from the target point to the skin surface above the target point, thus maintaining the advantages of the monopolar application method compared to the bipolar application method, while maintaining the existing monopolar method. This method eliminates the wide range of current application, which is a disadvantage of this method, and high frequencies can be applied only to the target area.

Meanwhile, the skin fixing unit 400 may include various modifications. That is, if it is placed in the front of the housing 100 to fix the treatment area and guide the penetration area of the needle 210, various structures are possible.

Figure 8 is a schematic side view of a first modification of the microneedle device according to the first embodiment of the present invention.

As a first modified example, the skin fixing part 600 may include a pair of torsion bars 610 and a skin contact part 620.

The pair of torsion bars 610 are spaced apart from each other, one end of each is mounted on the housing 100, and the other end is disposed in front of the housing 100 to form an inclination. A pair of torsion bars 610 are mounted to have a restoring force toward the needle module 200, that is, toward the housing 100, by means of a torsion spring.

The skin contact portion 620 connects the lower portions of a pair of torsion bars 610 to each other. At this time, the lower end of the skin contact part 620 may be arranged below the lower surface of the housing 100.

If only the lower surface of the housing 100 is in close contact with the skin of the recipient, the treatment area may not be fixed uniformly due to a sliding phenomenon or the like. However, since the skin fixing part 600 is installed and the lower end of the skin contacting part 620 is disposed lower than the lower surface of the housing 100, the housing 100 is first placed in close contact with the skin contacting part 620 in front of the treatment area. ) is brought into close contact with the body and the first motor 311 is driven to accurately target the needle 210 to be inserted into the treatment area.

An electrode member may be attached to the lower surface of the skin contact portion 620 to perform a ground electrode function, or the material itself may be a material that can be used as an electrode member.

Figure 9 is a schematic perspective view of a second modification of the microneedle device according to the first embodiment of the present invention, and Figure 10 is a schematic perspective view of the skin fixing portion of the second modification of the microneedle device according to the first embodiment of the present invention. This is a rear perspective view.

As a second modification, the skin fixing part 700 may be provided to be slidable on the front of the housing 800.

In this modified example, a support spring fixing part 810, a guide part 820, and a fixing protrusion 830 are formed on one surface of the housing 800. And the skin fixing part 700 includes a sliding body part 710 and a skin contact part 720.

The sliding body portion 710 has an empty space formed therein so that the support spring 730 can be disposed, and a sliding plate 711 protruding inward from the rear side end is formed. And, a fixing groove 712 and a guide groove 713 are formed on the rear side of the sliding plate 711.

And the skin contact part 720 is coupled to the lower end of the sliding body part 710, and a support spring receiving groove 721 is formed on the upper surface.

The upper end of the support spring 730 is fixed to the support spring fixing part 810 and the lower end is fixed to the support spring receiving groove 721, and the support spring 730 has a downward restoring force. Accordingly, the skin fixing unit 700 receives a downward force.

And the fixing protrusion 830 is accommodated in the fixing groove 712 formed in the sliding body 710, so that the skin fixing part 700 is fixedly arranged.

That is, the fixing protrusion 830 is accommodated in the fixing groove 712 and the skin fixing part 700 is fixed to the lower cover. At this time, the support spring 730 is in a compressed state. And the inner surface of the sliding plate 711 is spaced apart from the guide portion 820.

When the user separates the skin fixing part 700 from the fixing groove 712, the attachment between the skin fixing part 700 and the housing 600 is released, and the skin contact part 720 moves downward due to the restoring force of the support spring 730. is moved to At this time, the sliding plate 711 slides along the guide portion 820, and the fixing protrusion 830 moves along the guide groove portion 713. The step of the guide groove portion 713 may perform a stopper function to limit the movement of the fixing protrusion 830.

An electrode member may be attached to the lower surface of the skin contact portion 720 to perform a ground electrode function, or the material itself may be a material that can be used as an electrode member.

Next, a microneedle device according to a second embodiment of the present invention will be described.

The microneedle device according to the second embodiment of the present invention applies high frequency to the needle in a monopolar manner, prevents electricity from being passed throughout the entire body of the person being treated, and applies the high frequency intensively to the target area, and has a needle module. It relates to a microneedle device that can perform both drug injection and high frequency application.

Figure 11 is a schematic side view of a microneedle device according to a second embodiment of the present invention, and Figure 12 is a rear perspective view of the fixing part of the microneedle device according to a second embodiment of the present invention.

The microneedle device 2000 according to the second embodiment of the present invention includes a housing 100, a needle module 200, a driving unit 300, a skin fixing unit 400, a conductive module 500, and Includes a drug supply unit (900). Redundant description of configurations that overlap with those of the first embodiment will be omitted. And the skin fixing unit may be the skin fixing unit 400, 600, or 700 of the first embodiment (including modifications).

A needle insertion part 221 into which each needle 210 is inserted and fixed is formed in the fixing part 220 of the needle module 200, and a drug supply hole 223 is formed at the rear thereof. The needle 210 is fixed through the needle insertion part 221, and the distal end of the needle 210 is placed in the drug supply hole 223 so that the drug is supplied into the needle 210.

And the moving part 320 of the driving part 300 has an internal space in communication with the internal space of the fixing part 220 (i.e., the inside of the drug supply hole 223 and the needle insertion part 221), and the drug is injected into one area. A section (not shown) is formed. The drug injection unit is connected to the end of the drug supply unit 800 and a tube 850, and the drug is supplied through this.

The drug supply unit 900 is configured to supply drug into the needle 210. The drug supply unit 900 may include a syringe body 910, a piston 920, a second motor 930, and a second ball screw 940.

Drugs are stored in the syringe body 910, and in this embodiment, the lower end of the syringe body 910 is installed in the housing 100. Specifically, a connector 860 connected to the drug supply unit 800 and the tube 850 is disposed in the housing 100, and the lower end of the syringe body 910 is inserted into the connector 860.

The second ball screw 940 includes a second screw 841 and a second nut 842. The second nut 842 is mounted on the second screw 841 and is raised and lowered, and the second ball screw 940 may be a known ball screw.

A second motor 930 is installed on the second screw 841, and when the second motor 930 is driven, the second screw 841 rotates and the second nut 842 is raised and lowered.

A piston 920 coupling portion is formed or coupled to the second nut 842, and the piston 920 is mounted on the piston 920 coupling portion.

By driving the second motor 930, the second ball screw 940 rotates and the second nut 842 descends. As a result, the piston 920 descends and the drug inside the syringe body 910 flows into the tube. It is injected into the needle 210 through (850).

While the operation of the second motor 930 is precisely controlled, a fixed amount of drug can be injected into the needle 210. Furthermore, the needle 210 is inserted into the skin along an inclined direction, and at this time, since the inclined surface of the tip of the needle 210 is parallel to the surface of the skin, the entire tip of the needle 210 can be inserted into the skin. Accordingly, it is possible to prevent the drug from leaking to the outside, so that the entire amount of drug supplied from the drug supply unit 800 can be injected into the skin.

From now on, the operation of the microneedle device according to the second embodiment of the present invention will be described.

Before the procedure, the first inclined portion 313a and the second inclined portion 321 are out of contact with each other, the spring 323 is restored, and the needle module 200 is placed in its original position.

After the operator determines the treatment area, the lower surface of the housing 100 is brought into close contact with a predetermined point behind the treatment area.

The first motor 311 may be driven by the operation of the manipulation module 20, and the first screw 312a rotates in one direction and the first nut 312b is lowered by the operation of the first motor 311. do.

As the rod 313 fixed to the first nut 312b descends, the first inclined part 313a and the second inclined part 321 of the moving part 320 come into contact, and the first screw 312a continues to rotate. The first inclined portion 313a presses the second inclined portion 321.

The moving part 320 slides forward along the inclined direction of the needle 210 by the pressing force generated by the first inclined part 313a, and the spring 323 is compressed. Accordingly, the needle module 200 slides forward along the inclined direction of the needle 210, and the needle 210 is inserted into the skin along the inclined direction. At this time, since the inclined surface of the tip of the needle 210 is parallel to the surface of the skin, the entire tip of the needle 210 can be inserted into the skin.

The insertion depth of the needle 210 can be adjusted by control of the first motor 311.

Afterwards, a high frequency is applied from the high frequency power source 30 through the conductive module 500 by operating the manipulation module 20.

The current is applied to the needle module 200 through the first cable 510, oscillates a high frequency at the tip of the needle 210 deep in the skin, and passes through the second cable 520 to the lower surface of the housing 100, which is the ground electrode. and/or refluxed to the skin contact portion 420.

Through this, the area where the current is applied is from the target point to the lower surface of the housing 100 and/or the lower surface of the skin contact part 420, and high frequency is applied intensively to the relevant area, thereby activating tissues and cells and dilating blood vessels. .

After blocking the high-frequency current supplied to the needle module 200, the second motor 930 is driven while the needle 210 penetrates the skin.

By driving the second motor 930, the second ball screw 940 rotates and the second nut 842 descends. As a result, the piston 920 descends and the drug inside the syringe body 910 flows into the tube. It is injected into the needle 210 through (850).

If high frequency is applied to the drug injection site before the drug is injected to induce cell activation through a preliminary high-frequency massage effect and then the drug is injected, the penetration of the injected drug becomes faster and the pharmacological action can be increased. Because it is effective, the consumption of expensive drugs can be reduced.

After the drug is injected into the skin, the first motor 311 rotates in reverse and the first screw 312a rotates in reverse, thereby raising the first nut 312b. As the rod 313 fixed to the first nut 312b rises, the contact between the first inclined portion 313a and the second inclined portion 321 is released, and the spring 323 is restored.

By restoring the spring 323, the needle module 200 and the moving part 320 are returned to their original positions.

After this, the above processes are repeated.

Next, the microneedle 210 device according to the third embodiment of the present invention will be described.

The housing 100' is configured to accommodate the needle module 200. The housing 100' may be replaceably mounted on the end of the handpiece.

The needle module 200 includes a needle 210 and a fixing part 220. A plurality of needles 210 are provided and mounted on the fixing part 220. The number of needles 210 is not limited to that shown in the drawing, and of course the number of needles 210 can be increased or decreased as needed.

The needle module 200 is mounted on a cylinder, and the needle module 200 can be advanced and retracted by advancing and retracting the cylinder in the vertical direction by the driving unit of the handpiece.

The first cable 510 of the conductive module 500 electrically connects the high-frequency power source 30 and the needle module 200 to each other. The second cable 520 connects the electronic control module 600 and the lower surface of the housing 100′. The lower surface of the housing 100' functions as a ground electrode. An electrode member may be attached to the lower surface of the housing 100' to perform a ground electrode function, or the material itself may be a material that can be used as an electrode member.

The current applied from the high-frequency power source 30 through the electronic control module 600 is applied to the electrodes of the plurality of needles 210 of the needle module 200 through the first cable 510. And the lower surface of the housing (100') is electrically grounded through the second cable (520).

Accordingly, the current applied from the high-frequency power source 30 is applied to the electrodes of the plurality of needles 210 through the first cable 510, and is refluxed to the lower surface of the housing 100' and/or the skin contact portion 420. That is, a high-frequency current can be applied to the needle 210 in a monopolar manner.

In this embodiment, the lower surface of the housing 100' may be provided in various structures.

As an example, the lower surface of the housing 100` may have an open shape through an edge 110`, and the second cable 520 is connected to the electrode member formed on the edge 110` to serve as a ground electrode. It can function. And the needle 210 can be advanced and retracted through the open lower surface of the housing 100'.

Alternatively, the lower surface of the housing 100′ may be composed of a border 110′ and a plate 120′. The plate 120' shields the space formed by the edge 110' and is provided with a number of through holes corresponding to the number of needles 210 to allow the needles 210 to pass through.

When the plate 120' is formed on the lower surface of the housing 100', the electrode member may be formed on the plate 120'. The electrode member may be formed in the space between the needles 210 and/or may be formed outside the needles 210. At this time, the electrode member may be attached to the plate as a separate conductive material.

The lower surface of the plate 120' or the lower surface of the electrode member may be arranged parallel to the lower end of the housing 100', or may be placed lower than the lower end of the housing 100'. Accordingly, during needling, the lower surface of the plate 120' is in contact with the skin.

When the needles 210 have a grid-like arrangement, the electrode member may also have a grid-like arrangement and be disposed between the needles 210, or may be provided linearly and arranged outside the through hole. That is, the electrode member may have various shapes and arrangements.

As described above, according to the present invention, a microneedle device is provided that applies high frequency to the needle in a monopolar manner, prevents the current from being applied throughout the entire body of the person being treated, and applies the high frequency intensively to the target area.

The use of any examples or illustrative terms (e.g., etc.) in the present invention is merely to describe the present invention in detail, and unless limited by the claims, the scope of the present invention is limited by the examples or illustrative terms. It doesn't work. Additionally, a person skilled in the art will know that various modifications, combinations, and changes may be made according to design conditions and factors within the scope of the appended claims or equivalents thereof.

Accordingly, the spirit of the present invention should not be limited to the above-described embodiments, and the scope of the spirit of the present invention, as well as the claims described below, as well as any scope equivalent to or equivalently changed from this claim, shall fall within the scope of the spirit of the present invention. It will be said that it belongs.

1000, 2000: Microneedle device
100, 800: Housing 200: Needle module
300: driving part 400, 600, 700: skin fixing part
500: Challenge module 900: Drug supply department

Claims (12)

A needle module that penetrates into the skin of the recipient;
a housing in which the needle module is arranged to be able to advance and retract, the lower surface of which is in contact with the skin of the recipient;
A driving unit that advances and retracts the needle module;
It includes a conductive module including a first cable and a second cable,
The needle module is electrically connected to the first cable,
The lower surface of the housing is electrically connected to the second cable.
Microneedle device. According to paragraph 1,
It is mounted on the housing, and further includes a skin fixing part that fixes the front of the skin of the recipient in contact with the housing,
The skin fixation part is electrically connected to the second cable.
Microneedle device. According to paragraph 2,
High-frequency power is applied to the needle module,
The lower surface of the housing and the skin fixing part have at least one ground electrode.
Microneedle device. According to paragraph 3,
The lower surface of the housing and the lower surface of the skin fixing part are made of conductive material.
Microneedle device. According to paragraph 3,
An electrode member is attached to the lower surface of the housing and the lower surface of the skin fixing part.
Microneedle device. According to paragraph 3,
The skin fixing part,
A pair of support bars mounted on the housing and spaced apart from each other;
A skin contact portion connecting the lower portions of the pair of support bars to each other and electrically connected to the second cable.
Microneedle device. According to paragraph 3,
a pair of torsion bars mounted on the housing and having a restoring force toward the needle;
A skin contact portion mounted on the lower portion of the pair of torsion bars and electrically connected to the second cable.
Microneedle device. According to paragraph 3,
A fixing protrusion and a support spring fixing part are formed to protrude on one surface of the housing,
The skin fixing part,
A sliding body portion formed on the rear side with a fixing groove into which the fixing protrusion is inserted;
a skin contact portion coupled to the lower surface of the sliding body, having a support spring receiving groove formed on the upper surface, and electrically connected to the second cable;
The upper end is fixed to the support spring fixing part, the lower end is fixed to the support spring receiving groove, and a support spring having a restoring force downward.
Microneedle device. According to paragraph 1,
A plate is formed on the lower surface of the housing, which is in contact with the skin and through which the needle penetrates,
An electrode member is formed on the plate.
Microneedle device. According to any one of claims 1 to 9,
Further comprising a drug supply unit that supplies drug to the needle module.
Microneedle device. According to clause 10,
The needle module is,
It includes a plurality of needles and a fixing part where the plurality of needles are fixed in an inclined direction with the vertical direction,
The driving unit,
a rod unit moving in a vertical direction by a first motor;
A moving part installed at the rear end of the fixing part and allowing the needle module to advance and retreat in the inclined direction of the needle according to the movement of the rod part in the vertical direction; comprising a.
Microneedle device. According to clause 11,
The drug supply department,
It includes a syringe body in which the drug is accommodated, and a piston that is raised and lowered by a second motor,
The moving part has an inner space that communicates with the inner space of the fixed part, and a drug injection part is formed that is connected to the end of the syringe body and a tube.
Microneedle device.

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