阅读说明：本技术 设置有能量均一化褶皱的皮肤手术用针及皮肤手术装置 (Skin operation needle provided with energy homogenization wrinkles and skin operation device ) 是由 安建荣 高友锡 于 2018-11-16 设计创作，主要内容包括：本发明涉及一种设置有能量均一化褶皱的皮肤手术用针及皮肤手术装置,可以使得表皮层的损伤最小化,根据手术目的可以向皮肤内各种深度供给能量,而且,供给的能量不会过度地集中,而是具有均匀的分布,从而可以提高皮肤再生速度,缩短治疗时间。(The present invention relates to a skin operation needle and a skin operation device provided with an energy uniformization fold, which can minimize damage of an epidermal layer, supply energy to various depths in the skin according to an operation purpose, and improve a skin regeneration rate and shorten a treatment time by uniformly distributing the supplied energy without excessively concentrating.)

1. A needle for skin surgery, which can increase the speed of skin regeneration by supplying energy to tissues in the skin, characterized in that,

comprises a needle body formed of a conductive material and inserted into the skin from a front end portion,

a conductive part is arranged in a part of the outer peripheral surface of the needle body, the conductive part is an area for inducing an electric field which is distinguished from other parts of the needle body,

the conductive portion is formed with a plurality of wrinkles so that an electric field formed by the conductive portion has a uniform distribution and is not inclined to a certain place and concentrated.

2. The skin surgical needle according to claim 1,

an insulating film coated with an insulating material is provided on the outer peripheral surface of the needle body at a remaining portion other than the conductive portion.

3. The skin surgical needle according to claim 2,

the material of the insulating film is parylene or polytetrafluoroethylene.

4. The skin surgical needle according to claim 1,

in order to form the conductive portion in a convex form, the remaining portion of the outer peripheral surface of the needle body other than the portion where the conductive portion is to be formed is etched by micromachining so as to be formed of a concave portion having a relatively concave form,

the conductive parts and the concave parts respectively have a front-back width of 100 to 300 micrometers, and are provided in plurality and alternately arranged along the front-back direction of the needle body,

the depth of the corrugation grooves formed in the conductive part is formed to be 5 to 15 μm.

5. The skin surgical needle according to claim 1,

the conductive portions are formed in a recessed shape on an outer peripheral surface of the needle body by means of micro-machining etching, and the plurality of conductive portions are formed in a shape spaced apart in a front-rear direction of the needle body,

the depth of the corrugation grooves formed in the conductive part is formed to be 5 to 15 μm.

6. The skin surgical needle according to claim 1,

the conductive portion is formed in a single shape or in a plurality of shapes spaced from each other on an outer peripheral surface from a front end portion to a rear end portion of the needle body.

7. The skin surgical needle according to claim 6,

the conductive portion is formed over a full 360 degrees in the circumferential direction of the outer peripheral surface of the needle body.

8. The skin surgical needle according to claim 6,

the conductive portion is formed along only one direction of the outer circumferential surface of the needle body in a directional manner.

9. The skin surgical needle according to claim 1,

a plurality of the conductive portions are formed on the outer peripheral surface of the needle body so as to be spaced from each other,

the needle body is formed to have a wider front-rear width from the rear end to the front end of the needle body, and the depth of the crimp groove is formed to be deeper, so that a stronger electric field can be formed as the depth of insertion into the skin is deeper.

10. The skin surgical needle according to claim 1,

the corrugations are formed by continuously forming concave semicircular corrugation grooves,

the corrugation grooves and the connection lines between the corrugation grooves are formed in a sharply protruded form, so that high-strength electric fields can be formed at a plurality of places through a plurality of connection lines.

11. The skin surgical needle according to claim 2,

the crimp groove is formed by micro-machining etching and is formed to a depth of 1/4 or less of the needle body diameter.

12. The skin surgical needle according to claim 11,

the depth of the corrugation grooves is 5 to 15 micrometers.

13. A skin surgery apparatus for providing energy to tissue within the skin using a needle so as to increase the rate of skin regeneration, the skin surgery apparatus comprising:

a support member; and

the needle according to any one of claims 1 to 12, wherein a plurality of needles are provided at a lower portion of the support member, and are inserted into the skin from a tip portion.

14. A skin surgery apparatus for providing energy to tissue within the skin using a needle so as to increase the rate of skin regeneration, the skin surgery apparatus comprising:

a support member; and

a plurality of needles provided below the support member and inserted into the skin from the distal end portion,

the needle includes a needle body formed of a conductive material and inserted into the skin from a distal end portion thereof, a conductive portion provided in a partial region of an outer peripheral surface of the needle body, the conductive portion being a region in which an electric field is induced to be distinguished from other portions of the needle body, the conductive portion having a plurality of folds formed therein so that the electric field formed by the conductive portion has a uniform distribution and is not concentrated by being inclined toward a certain position,

the needle is provided as a directional needle having a form formed in only one direction in an outer peripheral surface of a needle body so that the conductive portion has directivity, the plurality of directional needles are provided around a center portion of the installation surface of the support member as a center, and the conductive portion is provided so as to face the center portion of the installation surface of the support member.

15. The skin surgical device of claim 14,

the needle is provided with the directional needle and the non-directional needle, the conductive part of the non-directional needle is formed in a mode of spanning the whole 360 degrees along the peripheral direction of the outer peripheral surface of the needle body, and the non-directional needle is arranged in the central part of the installation surface of the supporting component.

16. The skin surgical device of claim 15,

the directional needle and the non-directional needle are provided with an insulating film coated with an insulating material on the remaining portion of the outer peripheral surface of the needle body except for the conductive portion.

17. The skin surgical device of claim 16,

in the directional needle and the non-directional needle, the non-directional needle has a plurality of conductive portions formed on an outer circumferential surface of the needle body so as to be spaced apart from each other, and has a wider front-rear width from a rear end portion to a front end portion of the needle body, and has a deeper wrinkle groove depth, so that a deeper depth of the wrinkle groove into the skin forms a stronger electric field.

Technical Field

The present invention relates to a needle for skin surgery, and more particularly, to a needle for skin surgery and a skin surgery apparatus, which can minimize damage to a skin layer, supply energy to various depths in the skin according to the purpose of surgery, and improve the regeneration rate of the skin and shorten the treatment time by uniformly distributing the supplied energy without being excessively concentrated.

Background

In general, the skin covering the entire body of the user is substantially composed of three layers, i.e., an epidermal layer, a dermal layer, and a subcutaneous fat layer.

Among them, the epidermis layer is a layer located on the outermost surface of the skin, and is divided into a plurality of layers such as the stratum corneum, the stratum lucidum, the stratum granulosum, the stratum spinosum, and the stratum basale, depending on the position and function, and plays a role in protection, defense, secretion, and the like.

The dermis layer is located below the epidermis layer and adjacent to the basal layer, constitutes most of the skin, including water, and is composed of a papillary layer in which capillary vessels and lymphatic vessels are located, and which is in a gel state, and consists of a papillary layer in which capillary vessels involved in blood circulation and lymphatic vessels transport lymph, and a reticular layer which includes collagen, elastin and a matrix (reservoir of water), collagen serving as collagen fibers and being involved in wrinkles in the skin, elastin serving as elastin fibers and imparting elasticity to the skin.

Recently, a surgical method of maintaining skin elasticity and minimizing skin aging by activating a cell tissue by directly delivering energy such as a high-frequency current to a dermal layer of the skin through a needle has been attracting attention.

As an example of an apparatus for such a skin surgery method, korean laid-open patent publication No. 2013-0012805 (2013.02.05) discloses a skin treatment apparatus using a high frequency, characterized by comprising: a high-frequency generation unit; a plurality of needles for supplying the high-frequency energy transmitted from the high-frequency generating unit to the inside of the skin; a driving part which provides power for inserting the plurality of needles to the inner side of the skin; a control unit configured to control the driving unit in an inserted state after the ends of the plurality of needles are inserted to a first target position inside the skin, so that the needles are moved to a second target position.

However, the skin treatment device of the related art has a problem in that the single electrode needle transmits high frequency energy not only to the dermis but also to the epidermis layer, thereby inducing damage to the epidermis layer.

In order to solve the above-described problems of the prior art, a needle has been developed which supplies energy by removing only the insulating film at the lower end portion after coating the surface with the insulating film, but the needle of the above-described type cannot supply energy to various depths in the skin as required for the purpose of treatment because energy is locally applied only through the lower end portion.

Disclosure of Invention

Accordingly, the present invention has been made to solve all the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a needle for skin surgery and a skin surgery apparatus, which can minimize damage to the epidermis layer, supply energy to various depths in the skin according to the purpose of the surgery, and improve the regeneration rate of the skin and shorten the treatment time by uniformly distributing the supplied energy without excessively concentrating the energy.

In order to achieve the above-described object, a needle for skin surgery according to the technical idea of the present invention is a needle for skin surgery capable of increasing a skin regeneration rate by supplying energy to tissues in the skin, and is technically characterized by comprising a needle body formed of a conductive material and inserted into the skin from a distal end portion thereof, wherein a conductive portion is provided in a partial region of an outer circumferential surface of the needle body, the conductive portion is a region in which an electric field is induced to be distinguished from other portions of the needle body, and a plurality of wrinkles are formed in the conductive portion, so that the electric field formed by the conductive portion has a uniform distribution and is not concentrated in a manner of being inclined to a certain portion.

Here, an insulating film formed by coating with an insulating material is provided on the outer peripheral surface of the needle body except for the remaining portion of the conductive portion.

In addition, the material of the insulating film is parylene or polytetrafluoroethylene.

Further, in order to form the conductive portion in a convex form, the remaining portion of the outer circumferential surface of the needle body excluding the portion where the conductive portion is to be formed is etched by micro-machining to be formed by a concave portion having a relatively concave form, the conductive portion and the concave portion each have a front-rear width of 100 to 300 μm and are provided in plural, and are alternately arranged along the front-rear direction of the needle body, and a depth of a wrinkle groove formed in the conductive portion is formed to be 5 to 15 μm.

The conductive portions are formed in a recessed form on the outer peripheral surface of the needle body by means of microfabrication etching, the plurality of conductive portions are formed in a form spaced apart in the front-rear direction of the needle body, and the depth of the wrinkle grooves formed in the conductive portions is 5 to 15 μm.

The conductive portion is formed in a single shape or in a plurality of shapes spaced apart from each other on the outer peripheral surface from the front end portion to the rear end portion of the needle body.

Further, the conductive portion is formed so as to span the entire 360 degrees in the circumferential direction of the outer peripheral surface of the needle body.

Further, the conductive portion is formed in a directional form along only one direction of the outer circumferential surface of the needle body.

The plurality of conductive portions are formed on the outer circumferential surface of the needle body so as to be spaced apart from each other, and are formed to have a wider front-rear width from the rear end portion to the front end portion of the needle body, and the depth of the wrinkle groove is formed to be deeper, so that a stronger electric field can be formed as the depth of the wrinkle groove is deeper into the skin.

In addition, the corrugations are formed by continuously forming concave semicircular corrugation grooves, and connecting lines between the corrugation grooves and the corrugation grooves are formed in a sharply convex form, so that high-strength electric fields can be formed at a plurality of places through a plurality of connecting lines.

The wrinkle groove is formed by micro-machining etching, and is formed to a depth of 1/4 or less of the needle body diameter.

Further, the depth of the corrugation grooves is 5 to 15 micrometers.

The skin surgery device according to the present invention is technically characterized by comprising a support member and needles, wherein the needles are provided at a lower portion of the support member and are inserted into the skin from a distal end portion.

The skin surgery device according to the present invention is characterized by comprising a support member and a needle, wherein a plurality of needles are provided at a lower portion of the support member and inserted into the skin from a distal end portion thereof, the needle includes a needle body formed of a conductive material and inserted into the skin from the distal end portion thereof, a conductive portion is provided at a partial region of an outer circumferential surface of the needle body, the conductive portion is a region in which an electric field is induced to be formed so as to be different from other portions of the needle body, a plurality of wrinkles are formed in the conductive portion so that the electric field formed by the conductive portion is uniformly distributed and is not concentrated so as to be inclined to a certain position, the needle is provided as a directional needle, the conductive portion of the directional needle has a form in which the electric field is formed in a directional manner only along one direction of the outer circumferential surface of the needle body, and the plurality of the directional needles are provided around a central portion of a mounting surface, and the conductive portion is provided toward a central portion of the mounting surface of the support member.

The needle is provided with the directional needle and the non-directional needle, the conductive portion of the non-directional needle is formed to extend over 360 degrees in the circumferential direction of the outer peripheral surface of the needle body, and the non-directional needle is provided in the center of the installation surface of the support member.

In addition, the directional needle and the non-directional needle are provided with an insulating film formed by coating with an insulating material on the outer peripheral surface of the needle body except for the conductive portion.

In the directional needle and the non-directional needle, the plurality of conductive portions of the non-directional needle are formed on the outer circumferential surface of the needle body so as to be spaced apart from each other, and are formed to have a wider front-rear width from the rear end portion to the front end portion of the needle body, and the depth of the wrinkle groove is formed to be deeper, so that a stronger electric field can be formed as the depth of the wrinkle groove is deeper into the skin.

According to the needle for skin surgery and the skin surgery apparatus of the present invention, it is possible to minimize damage to the epidermis layer, supply energy to various depths in the skin according to the purpose of surgery, and improve the skin regeneration rate and shorten the treatment time by uniformly distributing the supplied energy without being excessively concentrated.

Drawings

Fig. 1 is a perspective view of a needle for skin surgery according to a first embodiment of the present invention.

Fig. 2 is a longitudinal sectional view for explaining the configuration of the skin surgical needle according to the first embodiment of the present invention.

Fig. 3 is an electric field distribution diagram of a conductive portion having wrinkles in a skin surgery needle according to a first embodiment of the present invention.

Fig. 4 is a diagram showing an electric field intensity distribution of a conductive portion having wrinkles in the skin surgery needle according to the first embodiment of the present invention.

Fig. 5 is an electric field distribution diagram of a conductive portion without wrinkles in the skin surgery needle according to the comparative example.

Fig. 6 is a diagram showing the electric field intensity distribution of the conductive portion without wrinkles in the skin surgery needle according to the comparative example.

Fig. 7 is a graph comparing the strength of the electric field formed in the conductive portion of the skin surgery needle according to the first embodiment and the skin surgery needle according to the comparative example.

Fig. 8 is a perspective view for explaining a skin surgery device to which the needle for skin surgery according to the first embodiment is applied.

Fig. 9 is a flowchart for explaining a manufacturing method of the needle for skin surgery according to the first embodiment.

Fig. 10 is a perspective view of a needle for skin surgery according to a second embodiment of the present invention.

Fig. 11 and 12 are bottom views for explaining a skin surgery device to which the needle for skin surgery according to the second embodiment is applied.

Fig. 13 is a perspective view of a needle for skin surgery according to a third embodiment of the present invention.

Fig. 14 is a longitudinal sectional view of a needle for skin surgery according to a third embodiment of the present invention.

Fig. 15 is a perspective view of a needle for skin surgery according to a fourth embodiment of the present invention.

Fig. 16 is a side view of a needle for skin surgery according to a fourth embodiment of the present invention.

Fig. 17 is a perspective view of a needle for skin surgery according to a fifth embodiment of the present invention.

Fig. 18 is a side view of a needle for skin surgery according to a fifth embodiment of the present invention.

Fig. 19 is a perspective view of a needle for skin surgery according to a sixth embodiment of the present invention.

Fig. 20 is a side view of a needle for skin surgery according to a sixth embodiment of the present invention.

Description of the reference symbols

110: needle body 110 a: distal end portion (of needle body)

110 b: conductive portion 110 c: concave part

111: pleats 111 a: fold groove

111 b: a connecting wire 120: insulating film

Detailed Description

A needle for skin surgery and a skin surgery device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein intended to be described in detail. However, the present invention is not intended to be limited to the specific forms disclosed, and the present invention is to be understood as including all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention. Like reference numerals are used for like components while describing the respective drawings. In the drawings attached hereto, the size of the structure is enlarged or reduced from the actual size in order to clarify the present invention.

Furthermore, although the terms first, second, etc. may be used to describe various components, the components are not limited by the terms. The terms are used only for the purpose of distinguishing one constituent element from other constituent elements. For example, a first component may be termed a second component, and similarly, a second component may be termed a first component, without departing from the scope of the present invention. In addition, unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, including technical or scientific terms. It will be generally understood that terms, such as those defined in commonly used dictionaries, have a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

< first embodiment >

Fig. 1 is a perspective view of a needle for skin surgery according to a first embodiment of the present invention, and fig. 2 is a longitudinal sectional view for explaining the configuration of the needle for skin surgery according to the first embodiment of the present invention.

As shown in the drawings, the skin operation needle 100 according to the first embodiment of the present invention includes a needle body 110 and an insulating film 120, and the insulating film 120 is coated with an insulating material harmless to the human body, such as parylene or teflon, to surround the outer surface of the needle body 110.

A part of the region of the insulating film 120 is removed by micro-machining etching, and a conductive portion 110b is formed separately from other portions, the conductive portion 110b is provided with a plurality of wrinkles 111, and the plurality of wrinkles 111 are formed by micro-machining etching the needle body 110.

The conductive part 110b is provided separately from other parts of the needle body 110 coated with the insulating film 120, so that a relatively strong electric field can be formed and energy of higher intensity can be applied to the skin. Further, if a plurality of wrinkles 110b are formed in the conductive portion 110b, the electric field is formed to have a uniform distribution in the region of the conductive portion 110b, and is not concentrated to be inclined to a certain place. The effect that can be obtained by the thus formed wrinkles 111 will be described in detail later.

The conductive portion 110b may be formed only one on the outer circumferential surface from the front end portion 110a to the rear end portion of the needle body 110 according to the purpose of the operation, but preferably, a plurality of conductive portions 110b may be formed so as to be spaced apart from each other as shown in the drawing. As shown in the drawing, the conductive portion 110b may be formed to span the entire 360 degrees in the circumferential direction of the outer circumferential surface of the needle body 110. As described above, if a plurality of conductive portions 110b formed in 360 degrees are provided on the outer peripheral surface of the needle body 110, an electric field is simultaneously formed at a plurality of places in the skin into which the needle is inserted, and thus energy can be applied to the skin tissue almost nondirectionally.

The wrinkles 111 are formed in the conductive portion 110b region by performing microfabrication etching on the needle body 110. The corrugations 111 are formed by continuously forming concave semicircular corrugation grooves 111a, and connection lines 111b between the corrugation grooves 111a and 111a are sharply formed in a convex shape as shown in an enlarged portion of fig. 2. If the corrugation 111 is not in a form in which the concave semicircular corrugation groove 111a is continuously formed but in a form in which the convex semicircular projection is continuously formed, the connection line 111b cannot be formed in a sharply convex form.

According to the above-described configuration of the present invention, since the electric field tends to be concentrated mainly at the angular corners, a stronger electric field is formed around the connection line 111b formed in a sharply projected form by the concave semicircular corrugated groove 111a, and a plurality of connection lines 111b of the corrugated groove 111a exist even when viewed only in the region of one conductive portion 110b, so that the electric field has a form uniformly distributed with high intensity as a whole, as can be confirmed from the graphs of fig. 3 and 4. Thus, a strong and uniform high quality of energy can be applied into the skin.

When a comparative example having a configuration in which only the conductive portion is formed on the needle and the wrinkle 111 is not formed, which is different from the first embodiment of the present invention, is observed, as can be confirmed from the graphs of fig. 5 and 6, the electric field is excessively concentrated only on the end portion of the conductive portion having the angular form due to the formation of the conductive portion, and the intensity of the electric field is extremely low at other portions, so that the electric field is unevenly distributed as a whole. By observing fig. 7 comparing the first embodiment and the comparative example, the improvement and effect of the wrinkles 111 in the first embodiment of the present invention can be confirmed. As is clear from fig. 7, the conductive portion 110b of the first embodiment in which the wrinkles 111 are formed generates a higher intensity electric field than the conductive portion of the comparative example in which there are no wrinkles, and the conductive portion 110b region shows a uniform distribution as a whole.

Therefore, in the needle of the first embodiment of the present invention in which the wrinkles 111 are provided in the conductive portion 110b, the electric field can be uniformly formed, and therefore, it is more advantageous to control the intensity and amount of energy applied to the skin, whereby a high-quality skin operation can be realized.

Here, the wrinkle groove 111a of the wrinkle 111 is formed by micro-machining etching and formed to a depth of 1/4 or less of the diameter of the needle body 110. More specifically, the depth of the crimp groove 111a is preferably formed to be 5 to 15 micrometers in consideration of the diameter of the needle body 110. If the depth of the wrinkle groove 111a of the wrinkle 111 exceeds 1/2 of the needle diameter, the needle body 110 may be easily broken, and if the depth of the wrinkle groove 111a of the wrinkle 111 is formed to be less than 5 μm, the strength of the electric field may be significantly different from other portions, and it may be difficult to form a sufficient level.

Preferably, the front end portion 110a of the needle body 110 is formed in a sharp shape so as to be easily inserted into the skin, and the front end portion 110a is also coated with the insulating film 120. However, since the needle body 110 itself is formed to have a thin thickness, the front end portion 110a does not necessarily have to be formed sharply for insertion into the skin, and is not necessarily limited to a form in which the sharp front end portion 110a is formed to be coated with the insulating film 120. However, at the rear end portion of the needle body 110, it is preferably coated with an insulating film 120 in order to protect the epidermis layer of the skin. This is because energy generated by an electric field is not applied to the epidermis layer of the skin directly exposed to the external environment, and this contributes to shortening the regeneration time after the operation, and the trace of the operation does not appear to the outside through the epidermis layer during the regeneration after the operation.

Further, the needle body 110 is shown in the drawings as being formed solid, but may be formed hollow for the purpose of injecting a drug or the like. The shape of the needle body 110 is preferably a cylindrical shape as shown in the drawing, but is not limited to a prismatic shape having a polygonal cross section. In particular, in the case of a directional needle described later in the second embodiment, the prism-shaped needle body described above can exert an advantageous effect.

Fig. 8 is a perspective view for explaining a skin surgery device to which the needle for skin surgery according to the first embodiment is applied.

As shown in the drawings, the skin surgery device to which the needle for skin surgery according to the first embodiment of the present invention is applied includes a support member 200 and a needle array composed of the aforementioned needles 100 of the first embodiment.

The support member 200 has a detailed structure that can be applied to the needle body 110 by receiving a power source, but the structure is a known structure, and thus, a detailed description thereof is omitted.

Although the drawings show that the needles are arranged in two rows on both sides of the lower portion of the support member 200, the plurality of needles are variously arranged, and thus are not limited in constituting the needle array. In particular, in the case of the skin surgical needle according to the first embodiment, the conductive portion 110b and the fold 111 are formed in the circumferential direction at 360 degrees on the outer circumferential surface of the needle body 110, and therefore, the needle is a nondirectional needle that is close to nondirectional when a magnetic field is formed, and can be relatively freely disposed.

Fig. 9 is a flowchart for explaining a manufacturing method of the needle for skin surgery according to the first embodiment.

As shown in fig. 9, the skin surgery needle according to the first embodiment of the present invention is manufactured through a pretreatment step, an insulating film coating step, an insulating film etching step, a conductive portion etching step, and a needle washing step.

In the pretreatment step, the rod-shaped needle body 110 having the sharp distal end portion 110a, which is purchased or prepared in advance, is washed with water and an acidic cleaning solution, and dried.

The insulating film 120 is applied to the needle body 110 which has been pretreated in the insulating film application step. The insulating film 120 may be coated by chemical vapor deposition. The insulating film 120 is made of parylene, teflon, or the like, which is safe for a human body.

In the insulating film etching step, the insulating film 120 is removed for a predetermined region, thereby forming the conductive portion 110 b. For this reason, if the insulating film 120 is removed by etching along the circumferential direction of the needle body 110, the conductive portion 110b is formed while the outer circumferential surface of the needle body 110 is exposed at this time. If the insulating film 120 is not firmly attached to the needle body 110 by applying thermal energy to the insulating film 120 before the fine processing etching is performed in the insulating film etching step, the insulating film 120 can be easily removed. The operation of forming the conductive portion 110b by partially removing the insulating film in this manner may preferably utilize microfabrication, but may be achieved by various methods.

In the conductive portion etching step, the outer peripheral surface of the needle body 110 exposed in the region of the conductive portion 110b is subjected to microfabrication etching while rotating 360 degrees, thereby forming a plurality of wrinkles 111. At this time, the concave semicircular wrinkle groove 111a is continuously formed by micro-machining etching, and the wrinkle groove 111a are directly adjacent without a space therebetween, so that the connection line 111b between the wrinkle groove 111a and the wrinkle groove 111a is formed in a sharply convex form. As described earlier, a higher intensity of electric field can be formed at a plurality of places by the sharply protruded connection line 111 b.

In the needle washing step, residues generated by a microfabrication etching process of the insulating film 120 and the needle body 110 are removed.

Next, another embodiment in which the shape is changed into various shapes will be described. For reference, the reference numerals of the respective portions are used as they are for portions or components corresponding to those of the first embodiment.

< second embodiment >

Fig. 10 is a perspective view of a needle for skin surgery according to a second embodiment of the present invention, and fig. 11 and 12 are bottom views for explaining a skin surgery device to which the needle for skin surgery according to the second embodiment is applied.

As shown in the drawing, the needle according to the second embodiment is characterized by a directional needle 100A formed in a directional form only in one direction of the outer peripheral surface of the needle body 110, instead of forming the conductive part 110b having the wrinkle 111 in a form spanning the entire 360 degrees in the peripheral direction of the outer peripheral surface of the needle body 110, as compared with the first embodiment.

According to the configuration of the second embodiment, when the needle array is configured in the skin surgery apparatus, the conductive portions 110b of all the needles are arranged so as to face the affected part, so that a high-intensity operation of applying energy to the affected part of the skin more intensively can be performed.

For example, in the case of the skin surgery apparatus shown in fig. 11, the individual needles provided on the lower surface mounting surface of the support member 200 are provided as the directional needles 100A, and in a state where the individual needles are arranged around the central portion where the affected part is located, a unique configuration is shown in which the conductive portion 110b faces the central portion. According to the above configuration, the conductive portions 110b of all the directional needles 100A can concentrate energy on the affected part while facing the central portion of the installation surface of the support member 200.

Although the needle body 110 is shown in the drawings as being formed solid, it may be formed hollow for the purpose of injecting a medicine or the like. The shape of the needle body 110 is preferably a cylindrical shape as shown in the drawing, but is not limited to a prismatic shape having a polygonal cross section. In particular, in the case of the second embodiment, since the needle is provided as the directional needle 100A, the prism-shaped needle body is advantageous in consideration of the side surface of the needle disposed toward the specific direction.

In the skin surgery apparatus shown in fig. 12, the directional needles 100A are provided around the center of the installation surface of the support member 200, and the conductive portion 110b faces the center of the installation surface, as in fig. 11, but there is a difference in the configuration in which the non-directional needles 100 are provided without leaving the center. In the case where the directional needle 100A and the non-directional needle 100 are combined in this manner, when the affected area is relatively wide, the non-directional needle 100 can be inserted into the center of the affected area, which is advantageous.

The configuration of the second embodiment is different from that of the first embodiment in the other configurations, which are not described, and thus detailed description thereof is omitted.

< third embodiment >

Fig. 13 is a perspective view of a needle for skin surgery according to a third embodiment of the present invention, and fig. 14 is a longitudinal sectional view of the needle for skin surgery according to the third embodiment of the present invention.

As shown in the drawing, the needle according to the third embodiment is characterized in that, compared to the first embodiment, a plurality of conductive portions 110b having the wrinkles 111 are formed on the outer circumferential surface of the needle body 110 so as to be spaced apart from each other, and are formed to have a wider front-rear width from the rear end portion of the needle body 110 to the front end portion 110a, and the depth of the wrinkle groove 111a is formed deeper, so that a stronger electric field can be formed as the depth of insertion into the skin becomes deeper.

According to the configuration of the third embodiment, a relatively strong electric field is formed widely at a portion of the needle inserted deeply into the skin, so that high-intensity energy can be applied, and conversely, a relatively weak electric field is formed narrowly in the vicinity of the epidermis layer of the skin, so that low-intensity energy can be applied. Thus, the operation with high strength is performed deep inside the skin, and the operation is performed in the vicinity of the epidermis layer of the skin exposed directly to the outside, so that the strength of the operation can be differentiated. This enables the surgical procedure to be performed most quickly on the epidermis exposed to the outside.

The configuration of the third embodiment is different from that of the first embodiment in the case of the remaining configuration which is not described, and therefore, detailed description thereof is omitted.

< fourth embodiment >

Fig. 15 is a perspective view of a needle for skin surgery according to a fourth embodiment of the present invention, and fig. 16 is a side view of the needle for skin surgery according to the fourth embodiment of the present invention.

As shown in the drawing, the needle according to the fourth embodiment is characterized in that the insulating film 120 is not provided, but the wrinkles 111 are formed by directly performing the micro-machining etching on the outer circumferential surface of the needle body 110, as compared with the first embodiment. The conductive portion 110b in this fourth embodiment is a region where the wrinkle 111 is formed.

According to the constitution of the fourth embodiment, a process for forming the insulating film 120 and an additional process for forming the conductive portion 110b are not required in the manufacturing process, and two microfabrication etching processes are reduced to one, so that there is an advantage of making the manufacturing method simple.

However, the configuration of the fourth embodiment has a disadvantage in that it is somewhat difficult to apply high-intensity energy if it is desired to distinguish a specific site in the skin from other sites according to the purpose of the operation because the strength of the electric field formed between the conductive portion 110b of the needle body 110 and the site other than the conductive portion is not strong.

The configuration of the fourth embodiment is different from that of the first embodiment in the case of the remaining configuration which is not described, and therefore, detailed description thereof is omitted.

< fifth embodiment >

Fig. 17 is a perspective view of a needle for skin surgery according to a fifth embodiment of the present invention, and fig. 18 is a side view of the needle for skin surgery according to the fifth embodiment of the present invention.

As shown in the drawing, the needle according to the fifth embodiment is provided in such a manner as to make up for the drawbacks of the fourth embodiment, and a concave portion 110c having a concave form is formed on the outer peripheral surface of the needle body 110 by means of etching using microfabrication. Due to the formation of the recess 110c, the remaining portion of the protrusion naturally constitutes the conductive portion 110 b.

Here, the conductive portions 110b and the recesses 110c are alternately arranged along the front-rear direction of the needle body 110.

The concave portion 110c is formed to have a front-rear width of 100 to 300 μm, and is in contact with the skin with a lower contact strength than the conductive portion 110b having the convex form.

A plurality of wrinkles 111 formed by secondary micro-machining etching are provided on the surface of the conductive portion 110 b. The conductive portion 110b is formed with a corrugation 111 having a corrugation groove 111a with a depth of 5 to 15 μm.

When the needle of the fifth embodiment is inserted into the skin, the concave portion 110c and the conductive portion 110b are in direct contact with the skin, but contact with different contact strengths and are different from each other. At this time, the conductive portion 110b applies energy generated by the electric field in a state of relatively stronger contact than the concave portion 110 c. At this time, although the conductive portion 110b is in a convex state, the plurality of wrinkles 111 function to uniformly disperse the electric field, so that there is no concern about the problem that the electric field is excessively concentrated at the end corners of the conductive portion 110 b.

In the case of the fifth embodiment, the conductive portion 110b is formed to surround 360 degrees along the outer peripheral surface of the needle body 110 similarly to the first embodiment, but it may be modified so that the conductive portion 110b has directivity toward one direction as in the second embodiment. Therefore, in the process of etching the recess 110c, the conductive portion 110b formed in the ring shape by the additional etching operation can be reduced to an island shape oriented in one direction as in the second embodiment.

In addition, the fifth embodiment may be modified such that, as in the third embodiment, the plurality of conductive portions 110b are formed to have a wider front-rear width from the rear end portion of the needle body 110 toward the front end portion 110a, and the depth of the wrinkle groove 111a is also formed deeper, so that a stronger electric field can be formed deeper into the skin.

The configuration of the fifth embodiment is different from the above-described embodiments in the other configurations, and therefore, the detailed description thereof is omitted.

< sixth embodiment >

Fig. 19 is a perspective view of a needle for skin surgery according to a sixth embodiment of the present invention, and fig. 20 is a side view of the needle for skin surgery according to the sixth embodiment of the present invention.

As shown in the drawing, the needle according to the sixth embodiment is opposite to the fifth embodiment in that the conductive portion 110b is formed in a concave form from a convex form. At this time, in order to form the conductive portion 110b in a recessed form, etching is performed by micromachining.

The conductive portion 110b is formed to have a front-rear width of 100 to 300 μm, and a plurality of the conductive portions 110b are provided on the outer peripheral surface of the needle body 110 in a spaced-apart arrangement. A plurality of wrinkles 111 formed by secondary micro-machining etching are provided on the surface of the conductive portion 110 b. The conductive portion 110b is formed with a corrugation 111 having a corrugation groove 111a with a depth of 5 to 15 μm. The conductive part 110b has relatively lower contact strength than other parts, and is in contact with the skin.

In the case of the needle according to the sixth embodiment, the conductive portion 110b is applied with energy generated by an electric field in a state of being in contact with the skin with relatively lower contact strength than other portions. In this case, since the plurality of wrinkles 111 formed in the conductive portion 110b function to uniformly disperse the electric field, there is no concern that the electric field is excessively concentrated in the end corner of the conductive portion 110 b.

In the case of the sixth embodiment, the conductive portions 110b are formed to surround 360 degrees along the outer circumferential surface of the needle body 110, similarly to the fifth embodiment, but may be modified such that the conductive portions 110b are oriented in one direction, as in the second embodiment, and the plurality of conductive portions 110b are formed to have a wider front-rear width from the rear end portion of the needle body 110 toward the front end portion 110a, and the depth of the wrinkle groove 111a is formed deeper, as in the third embodiment, so that a stronger electric field can be formed as the depth of insertion into the skin becomes deeper.

The configuration of the sixth embodiment is different from the above embodiments in the other configurations, and therefore, the detailed description thereof is omitted.

While the preferred embodiments of the present invention have been described, the present invention is susceptible to various changes and modifications and various equivalents. It is clear that the invention can be applied in the same form with suitable modifications of the described embodiments. Accordingly, the description is not intended to limit the scope of the invention, which is defined by the limitations of the following patent claims.