Method for manufacturing skin lifting treatment device and skin lifting treatment device manufactured using same

Abstract

A method for manufacturing a skin lifting treatment device and a skin lifting treatment device manufactured using same according to the present invention have an advantage of simplifying a manufacturing process since a skin lifting treatment thread having a plurality of barbs formed thereon is molded in a cannula for sale as a product, and the thread can be sold together with the cannula in a molded state within the cannula without the need to manufacture the thread separately from the cannula and install the thread in the cannula.

Description

Manufacturing method of a skin lifting treatment device and a skin lifting treatment device manufactured using the same

[0001] The present invention relates to a method of manufacturing a skin lifting treatment apparatus and a skin lifting treatment apparatus manufactured using the same, and more particularly, to a method of manufacturing a skin lifting treatment apparatus used for the purpose of lifting the skin by inserting a thread into the skin with a cannula, and a skin lifting treatment apparatus manufactured using the same.

[0002]

[0003] In general, as the human body ages, collagen, a component of the skin that controls skin elasticity, disappears, causing skin aging. As skin aging progresses, the skin sags under the influence of gravity.

[0004] Skin lifting procedures include laser lifting and thread lifting. Thread lifting involves injecting harmless, meltable threads directly into the skin, pulling them upward to lift sagging skin and regenerating collagen to restore elasticity. This procedure offers long-lasting lifting effects and, because it doesn't involve cutting the skin, leaves minimal scarring, allowing patients to resume their daily routines relatively quickly. This makes it a popular lifting method.

[0005] The threads used in the above-described thread lifting include both non-threaded threads and threads with multiple protrusions formed on the outer surface. Threads with multiple protrusions formed on the outer surface can enhance the skin lifting effect compared to non-threaded threads, as when the thread is inserted into the skin and lifted, the multiple protrusions catch on the skin and pull the skin in the lifting direction.

[0006] Korean Patent Publication No. 10-1057377 (August 17, 2011) (hereinafter referred to as “prior art”) discloses “a medical suture having microscopic protrusions on the surface and a method for manufacturing the same.”

[0007] The above-mentioned conventional technology comprises: 1) a step of manufacturing a suture preform having micro cogs formed on the surface of the suture by performing a heat-press solid-phase forming method on a surgical suture raw material in an overflow mold under temperature conditions of a temperature lower than the melting point and higher than the glass transition temperature of the suture raw material and a pressure condition of 10 to 200 kgf / ㎠, and 2) a step of manufacturing a suture in which a twist is maintained by applying heat in a vacuum state in which a temperature condition lower than the melting point and higher than the glass transition temperature of the suture raw material is maintained and applying tensile and rotational forces to the suture preform.

[0008] In general, when the polymer suture is fixed at both ends to prevent shrinkage deformation even in a heated section and then heat is applied in the same range, the ductility of the polymer suture increases while the tensile strength remains the same as that of the yarn of the polymer suture.

[0009] The above-mentioned conventional technology utilizes the above-mentioned characteristics of the polymer suture, and has the characteristic that when the yarn is heated to a specific temperature below the melting point of the polymer suture raw material to increase ductility, but both ends are fixed to suppress shrinkage deformation and compression molded to form protrusions on the surface, micro-protrusions can be formed on the surface of the yarn while maintaining the molecular directionality of the polymer suture.

[0010] However, the above-mentioned prior art discloses a technology for manufacturing a polymer suture having the above-mentioned microprotrusions formed therein, but when selling the final product, the polymer suture alone is sold, but the polymer suture is sold combined with a cannula for the convenience of the doctor performing the procedure.

[0011] That is, in the above conventional technology, when selling the final product, the manufactured polymer suture is connected by penetrating the cannula, and then the polymer suture is placed in a sterilization room while connected to the cannula and sterilized at a predetermined temperature, and then the polymer suture is sold while connected to the cannula.

[0012] Accordingly, the above-described conventional technology has a problem in that the manufacturing process of the skin lifting treatment device is complicated because the process of manufacturing the polymer suture with the micro-protrusions formed and the process of sterilizing the polymer suture by combining it with the cannula are separated.

[0013]

[0014] The technical problem of the present invention is to provide a method for manufacturing a skin lifting treatment device in which a thread for skin lifting treatment having a plurality of thorns formed is formed within a cannula for sale as a product, so that the thread can be sold together with the cannula in a state formed within the cannula without having to manufacture the thread separately from the cannula and install it in the cannula, thereby simplifying the manufacturing process, and a skin lifting treatment device manufactured using the same.

[0015] The technical problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0016]

[0017] In order to achieve the above object, the method for manufacturing a skin lifting treatment device according to the present invention comprises steps (S1), (S2), (S3), (S4), (S5), and (S6). In step (S1), the entire body of a thread for skin lifting treatment is passed back and forth through a cannula having a handle at the rear end. In step (S1), the entire body of the thread is a thread having a plurality of thorns protruding from the outer circumference. In step (S2), the front end of the entire body of the thread protruding from the front end of the cannula is fixed to the front end of the cannula using a first holder. In step (S3), the rear end of the entire body of the thread protruding from the handle is rotated to twist the entire body of the thread. In step (S4), the rear end of the entire body of the thread is pulled so that the entire body of the thread becomes taut and fixed to the handle using a second holder. In the above step (S5), a cap is placed on the cannula and the rear end of the cap is connected to the handle. In the above step (S6), a predetermined temperature is applied to the cannula so that the twist of the entire body of the thread is maintained and the entire body of the plurality of thorns takes the shape of the plurality of thorns.

[0018] The above-mentioned predetermined temperature may be the sterilization temperature of the above-mentioned room.

[0019] The above sterilization temperature may be a temperature of 38°C to 60°C.

[0020] In the above step (S6), sterilization can be performed for a period of 90 to 180 minutes.

[0021] In the above step (S6), the cannula with the cap on can be placed in a sterilization chamber in a sterilization packaging material and the predetermined temperature can be applied.

[0022] The plurality of thorns formed in the above step (S6) may be configured with a lifting surface that allows the user's internal skin tissue to be caught between the main body of the thread. A concave first folded surface may be formed on the lifting surface.

[0023] The skin lifting treatment device according to the present invention is manufactured using the manufacturing method of the skin lifting treatment device.

[0024] A skin lifting treatment device according to the present invention comprises a cannula, a thread for a skin lifting treatment, a first holder, and a second holder. A handle is provided at the rear end of the cannula. The thread penetrates the cannula forward and backward. A plurality of thorns are formed to protrude on the outer surface of the thread. The first holder fixes the front end of the thread, which protrudes toward the front end of the cannula, to the front end of the cannula. The second holder fixes the rear end of the thread, which protrudes toward the handle, to the handle. The thread is formed as a twisted thread in a portion between the first holder and the second holder. The thread is formed as a non-twisted thread in a front end relative to the first holder and a rear end relative to the second holder.

[0025] The above-described plurality of thorns may be composed of a lifting surface, an inclined surface, a parallel surface, and both sides. The inclined surface may be arranged at an angle relative to the length of the thread body on the opposite side of the lifting surface. The parallel surface may connect the end of the lifting surface and the end of the inclined surface. The parallel surface may be parallel to the length of the thread body. The both sides may be formed as a plane.

[0026] The above plurality of thorns may form a concave first folding surface on the lifting surface.

[0027] The lifting surface may be composed of a first lifting surface and a second lifting surface. The first lifting surface may be arranged closer to the main body of the object relative to the first bending surface. The second lifting surface may be arranged further from the main body of the object relative to the first bending surface. The first lifting surface and the second lifting surface may be arranged to be inclined at different angles relative to the length of the main body of the object.

[0028] The inner angle between the first lifting surface and the length of the real body may be formed at an angle that is at least twice as large as the inner angle between the second lifting surface and the length of the real body.

[0029] The protrusion length of the second lifting surface may be formed to be longer than the protrusion length of the first lifting surface.

[0030] Each of the two sides of the lifting surface, the inclined surface, and the parallel surface can be formed into a convex round shape.

[0031] A concave second folded surface can be formed on the above slope.

[0032] The above-mentioned inclined surface may be composed of a first inclined surface and a second inclined surface. The first inclined surface may be arranged closer to the real body with respect to the second folded surface. The second inclined surface may be arranged further from the real body with respect to the second folded surface. The first inclined surface and the second inclined surface may be arranged to be inclined at different angles with respect to the length of the real body.

[0033] The inner angle between the first inclined plane and the length of the real body may be formed at a larger angle than the inner angle between the second inclined plane and the length of the real body.

[0034] The protrusion length of the second inclined surface may be formed to be longer than the protrusion length of the first inclined surface.

[0035] Specific details of other embodiments are included in the detailed description and drawings.

[0036]

[0037] According to the method for manufacturing a skin lifting treatment device according to the present invention and the skin lifting treatment device manufactured using the same, a thread for skin lifting treatment having a plurality of thorns formed thereon is formed within a cannula for sale as a product, and the thread can be sold together with the cannula in a state formed within the cannula without having to manufacture the thread separately from the cannula and install it in the cannula, thereby simplifying the manufacturing process.

[0038] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0039]

[0040] Figure 1 is a perspective view showing a skin lifting treatment device according to an embodiment of the present invention;

[0041] Figure 2 is an exploded perspective view of Figure 1;

[0042] Figure 3 is a block diagram showing a process according to a method for manufacturing a skin lifting treatment device according to an embodiment of the present invention.

[0043] Figure 4 is a drawing showing a process according to a method for manufacturing a skin lifting treatment device according to an embodiment of the present invention.

[0044] FIG. 5 is a drawing showing a state in which a skin lifting treatment thread of a skin lifting treatment device according to an embodiment of the present invention is inserted into a piece of meat.

[0045] Figure 6 is a graph showing the resistance measured when a thread for skin lifting treatment with multiple thorns in a conventional 2D shape is inserted in the same state as Figure 5, a piece of meat is fixed to the clamp of a tensile strength tester, and the thread is pulled in the direction of the arrow.

[0046] Fig. 7 is a graph showing the resistance measured when a thread for skin lifting treatment having multiple thorns in the 3D shape is inserted in the same state as Fig. 5, a piece of meat is fixed to the clamp of a tensile strength tester, and the thread is pulled in the direction of the arrow.

[0047] Fig. 8 is a perspective view showing the thread for skin lifting treatment shown in Figs. 1 and 2;

[0048] Figure 9 is an enlarged view of a portion of the first area, the second area, and the third area shown in Figure 8;

[0049] Fig. 10 is an enlarged view of a portion of the first area shown in Fig. 8;

[0050] Fig. 11 is an enlarged view of a portion of the second area shown in Fig. 8;

[0051] Fig. 12 is a left side view of Fig. 10, showing a first thorn formed in the first region;

[0052] Fig. 13 is a left side view of Fig. 11, showing a second thorn formed in the second region;

[0053] Fig. 14 is a perspective view showing the first and second thorns shown in Figs. 10 and 11;

[0054] Fig. 15 is a rear-side perspective view showing the first and second thorns shown in Figs. 10 and 11;

[0055] Fig. 16 is an enlarged view showing the first and second thorns shown in Figs. 10 and 11;

[0056] Figure 17 is a schematic diagram of the first and second thorns shown in Figure 16.

[0057]

[0058] <Explanation of symbols>

[0059] 1: Thread for skin lifting treatment

[0060] 2: Full body thread for skin lifting treatment

[0061] 6: Cannula

[0062] 6A: Handle

[0063] 7: 1st holder

[0064] 8: 2nd holder

[0065] 9: Cap

[0066] 200, 300: Thorns

[0067] 230: Lifting surface

[0068] 233: First fold surface

[0069] 1000: Skin lifting treatment device

[0070]

[0071] Hereinafter, a thread for skin lifting treatment according to an embodiment of the present invention will be described with reference to drawings.

[0072] When assigning reference numerals to components in each drawing, it should be noted that identical components are assigned the same numerals whenever possible, even if they appear on different drawings. Furthermore, when describing embodiments of the present invention, if a detailed description of a related known configuration or function is deemed to hinder understanding of the embodiments of the present invention, the detailed description will be omitted.

[0073] When describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only intended to distinguish the components from other components, and do not limit the nature, order, or sequence of the components. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this application.

[0074] Fig. 1 is a perspective view showing a skin lifting treatment device according to an embodiment of the present invention, and Fig. 2 is an exploded perspective view of Fig. 1.

[0075] Referring to FIGS. 1 and 2, a skin lifting treatment device (1000) according to an embodiment of the present invention may include a skin lifting treatment thread (1), a cannula (6), a first holder (7), a second holder (8), and a cap (9).

[0076] The thread (1) for skin lifting treatment can pass through the cannula (6) forward and backward. A handle (6A) may be provided at the rear end of the cannula (6).

[0077] The rear end of the thread (1) for skin lifting treatment can be inserted into the cannula (6) through a hole (6C) formed on the outer surface of the front end of the cannula (6) and can be pulled out to the rear of the handle (6A) through a hole (6B) formed on the rear end of the handle (6A), and the front end of the thread (1) can be arranged on the outside of the front end of the cannula (6) and folded rearward to be covered on the outer surface of the front end of the cannula (6). Of course, the front end of the thread (1) for skin lifting treatment can be inserted into the cannula (6) through a hole (6B) formed on the outer surface of the front end of the handle (6A), pulled out through a hole (6C) formed on the outer surface of the front end of the cannula (6), and then folded rearward.

[0078] In this state, the front end of the cannula (6) can be passed through the first holder (7) to fix the front end of the thread (1). Here, the first holder (7) may be formed of sponge, but may include any fixing member that can fix the front end of the thread (1) to the outer surface of the front end of the cannula (6).

[0079] After the front end of the thread (1) is fixed in this way, the rear end of the thread (1) can be fixed by inserting the second holder (8) into the hole (6B) formed at the rear end of the handle (6A).

[0080] Afterwards, by placing a cap (9) on the cannula (6) and connecting the rear end of the cap (9) to the front end of the handle (6A), the skin lifting treatment device (1000) can be completed, and the skin lifting treatment device (1000) completed in this way can be sold as a product.

[0081] The cannula (6) functions like a syringe needle, and the doctor inserts the cannula (6) with the thread (1) penetrating it into the skin (especially, the face) of the user who is to receive the skin treatment, and then fixes the thread (1) into the skin of the user and pulls the cannula (6) while pulling it out from the skin of the user to perform a lifting treatment on the user's skin.

[0082] The thread (1) for skin lifting treatment can be formed of a biodegradable or absorbable polymer material such as PLGA, PLLA, PDO, PLCL, PCL, PHA, PHB, etc., including ester series, which is decomposed and absorbed into the skin after a certain period of time in the body or a polymer backbone (main chain).

[0083] Meanwhile, a plurality of thorns (200, 300, see Fig. 9) may be formed protruding on the outer surface of the thread (1) for skin lifting treatment. The plurality of thorns (200, 300) have a predetermined shape (three-dimensional shape) that can improve the user's skin lifting ability.

[0084] The thread (1) according to an embodiment of the present invention is formed of a bioabsorbable polymer, and when tension is applied to the polymer at a predetermined temperature, it acquires crystallinity. By utilizing the crystallinity, a thread (1) having a plurality of thorns (200, 300) having a predetermined shape protruding from the outer surface can be manufactured.

[0085] In particular, the skin lifting treatment device (1000) according to an embodiment of the present invention forms a thread (1) for skin lifting treatment so that a plurality of thorns (200, 300) having a predetermined shape are formed protruding on the outer surface of the cannula (6), so that the thread (1) can be sold together with the cannula (6) in a state formed within the cannula (6) without having to manufacture the thread (1) separately from the cannula (6) and install it in the cannula (6), thereby simplifying the manufacturing process.

[0086] A method for manufacturing a skin lifting treatment device (1000) according to an embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

[0087] FIG. 3 is a block diagram showing a process according to a method for manufacturing a skin lifting treatment device according to an embodiment of the present invention, and FIG. 4 is a drawing showing a process according to a method for manufacturing a skin lifting treatment device according to an embodiment of the present invention.

[0088] Referring to FIGS. 3 and 4, the method for manufacturing a skin lifting treatment device (100) according to the present invention may include steps (S1), (S2), (S3), (S4), (S5), and (S6). Steps (S1), (S2), (S3), (S4), (S5), and (S6) may be performed sequentially.

[0089] In step (S1), the whole body (2) of the thread (1) for skin lifting treatment can be passed back and forth through a cannula (6) having a handle (6A) at the rear end. Specifically, in step (S1), the rear end of the whole body (2) of the thread (1) is inserted into the cannula (6) through a hole (6C) formed on the outer surface of the front end of the cannula (6) and pulled out to the rear of the handle (6A) through a hole (6B) formed at the rear end of the handle (6A), so that the front end of the whole body (2) of the thread (1) is disposed outside the front end of the cannula (6) and the rear end of the whole body (2) of the thread (1) is disposed outside the handle (6A) of the cannula (6), so that the whole body (2) of the thread (1) can be passed back and forth through the cannula (6) having a handle (6A) at the rear end. Alternatively, in step (S1), the front end of the body (2) of the thread (1) may be inserted into the cannula (6) through a hole (6B) formed at the rear end of the handle (6A), and the front end of the cannula (6) may be pulled out through a hole (6C) formed on the outer surface of the front end of the cannula (6), so that the front end of the body (2) of the thread (1) is positioned outside the front end of the cannula (6), and the rear end of the body (2) of the thread (1) is positioned outside the handle (6A) of the cannula (6), so that the front end of the body (2) of the thread (1) may be passed back and forth through the cannula (6) having the handle (6A) at the rear end.

[0090] In the (S1) step, the full body (2) of the thread (1) may be a thread having a plurality of thorns (200, 300) protruding from the outer surface (not shown). Here, the full body (2) of the thread (1) for skin lifting procedure may mean a thread temporarily made to manufacture the thread (1) for skin lifting procedure, and may mean the thread in a previous state of the thread (1) for skin lifting procedure. In addition, the full body of the plurality of thorns (200, 300) means the thorns in a previous state of the plurality of thorns (200, 300), and may be made by cutting the outer surface of the full body of the thread (1) for skin lifting procedure, or may be made by molding the full body of the thread (1) for skin lifting procedure in a mold and integrally molding it.

[0091] In step (S2), the front end of the body (2) of the thread (1) protruding from the front end of the cannula (6) can be fixed to the front end of the cannula (6) with the first holder (7). Specifically, in step (S2), the front end of the body (2) of the thread (1) that has come out through the hole (6C, see FIG. 2) formed on the outer surface of the front end of the cannula (6) is folded backward, and then the front end of the cannula (6) is passed through the first holder (7), so that the front end of the body (2) of the thread (1) can be fixed to the front end of the cannula (6) with the first holder (7).

[0092] In step (S3), the rear end of the body (2) of the thread (1) protruding through the handle (6A) can be rotated to twist the body (2) of the thread (1). Specifically, in step (S3), the rear end of the body (2) of the thread (1) protruding backward through the hole (6B, see FIG. 2) formed in the rear end of the handle (6A) of the cannula (6) can be rotated to twist the body (2) of the thread (1).

[0093] The reason for twisting the whole body (2) of the thread (1) in step (S3) is to evenly arrange the whole bodies of multiple thorns (200, 300) in the circumferential direction on the outer surface of the whole body (2) of the thread (1). That is, before twisting the whole body (2) of the thread (1), when looking at the whole body (2) of the thread (1) from the front or the back, the whole bodies of multiple thorns (200, 300) can be arranged only on opposite sides in the circumferential direction on the outer surface of the whole body (2) of the thread (1). However, after twisting the whole body (2) of the thread (1), when looking at the whole body (2) of the thread (1) from the front or the back, the whole bodies of multiple thorns (200, 300) can be arranged in three or more circumferential directions on the outer surface of the whole body (2) of the thread (1).

[0094] In step (S4), the rear end of the body (2) of the thread (1) can be pulled so that the body (2) of the thread (1) becomes taut and fixed to the handle (6A) with the second holder (8). Specifically, in step (S4), the rear end of the body (2) of the thread (1) protruding backward through the hole (6B) formed in the rear end of the handle (6A) of the cannula (6) is pulled backward and kept taut, and then the second holder (8) can be inserted into the hole (6B) of the handle (6A) to fix the rear end of the body (2) of the thread (1) to the handle (6A) with the second holder (8). That is, when the second holder (8) is inserted into the hole (6B) of the handle (6A), the outer circumference thereof is in close contact with the inner circumference of the hole (6B) of the handle (6A), so that the rear end of the body (2) of the thread (1) can be fixed to the handle (6A).

[0095] In step (S5), a cap (9) can be placed on the cannula (6) and the rear end of the cap (9) can be connected to the handle (6A) of the cannula (6).

[0096] In step (S6), a predetermined temperature can be applied to the cannula (6) so that the twist of the whole body (2) of the thread (1) is maintained and the whole body of the plurality of thorns (200, 300) takes the shape of the plurality of thorns (200, 300). Here, the predetermined temperature can be the sterilization temperature of the thread (1). That is, the cannula (6) covered with the cap (9) that went through step (S5) can be placed in a sterilization room to sterilize the whole body (2) of the thread (1), and in this process, the twist of the whole body (2) of the thread (1) is maintained and the whole body of the plurality of thorns (200, 300) takes the three-dimensional shape of the plurality of thorns (200, 300). Here, when placing the cannula (6) with the cap (9) in the sterilization room, the cannula (6) with the cap (9) can be placed in the sterilization room in a sterilization packaging material.

[0097] That is, the thread (1) for skin lifting treatment is formed of a bioabsorbable polymer, and the polymer has crystallinity when tension is applied while the predetermined temperature is applied. Therefore, after the rear end of the whole body (2) of the thread (1) for skin lifting treatment is pulled backward and fixed to the handle (6A) with the second holder (8), the cannula (6) is placed in a sterilization room, and at the predetermined temperature, which is the sterilization temperature, the crystallinity generated in the whole body (2) of the thread (1) and the whole bodies of the plurality of thorns (200, 300) can be utilized to manufacture the thread (1) for skin lifting treatment in which the whole body (2) of the thread (1) maintains its twist and the whole bodies of the plurality of thorns (200, 300) have a predetermined shape.

[0098] The yarn (1) manufactured through the steps (S1) to (S6) above can be formed as a twisted yarn in which the portion between the first holder (7) and the second holder (8) is maintained in a twisted state, the front end based on the first holder (7) can be formed as an untwisted yarn, and the rear end based on the second holder (8) can also be formed as an untwisted yarn.

[0099] That is, the skin lifting treatment device (100) according to an embodiment of the present invention may be composed of a cannula (8) having a handle (6A) provided at the rear end, a skin lifting treatment thread (1) that penetrates the cannula (6) forward and backward and has a plurality of thorns (200, 300, see FIG. 9) protruding from the outer surface, a first holder (7) that fixes the front end of the thread (1) protruding from the front end of the cannula (6) to the front end of the cannula (6), and a second holder (8) that fixes the rear end of the thread (1) protruding from the handle (6A) to the handle (6A). And, the thread (1) may be formed with the twisted thread in the portion between the first holder (7) and the second holder (8), the front end with respect to the first holder (7) may be formed with an untwisted thread, and the rear end with respect to the second holder (8) may also be formed with an untwisted thread. Hereinafter, the thread (1) for skin lifting treatment may have the same meaning as the twisted thread with the twist maintained in the portion between the first holder (7) and the second holder (8).

[0100] Meanwhile, the sterilizing room may be filled with a sterilizing gas. That is, the sterilization method of the room (1) may use a gas sterilization method. The gas sterilization method is a type of chemical sterilization method that sterilizes microorganisms by spraying a sterilizing agent in a gaseous state or in the air, and is applied to solid materials, equipment, and heat-sensitive disposable plastic medical supplies. In this embodiment, the sterilizing agent is 100% EO (ethylene oxide) gas, but in addition to ethylene oxide (EO), a mixed gas of propylene oxide, methyl bromide, formaldehyde, ozone, and carbon dioxide may be used as the sterilizing agent.

[0101] In this embodiment, the sterilization temperature is 45°C. However, the sterilization temperature may be 38°C to 60°C. If the sterilization temperature is lower than 38°C, there may be a problem in which the crystallinity does not occur, and if the sterilization temperature is higher than 60°C, there may be a problem in which the polymer arrangement (crystallinity) is reduced, resulting in a weakening of the tensile strength. Therefore, the sterilization temperature is preferably 38°C to 60°C.

[0102] In the above step (S6), sterilization can be performed for a time of 90 to 180 minutes. If the sterilization time is shorter than 90 minutes, there may be a problem in that the crystallinity may be formed but not completely. If the sterilization time is longer than 180 minutes, there may be a problem in that the power of the sterilization room is wasted because the crystallinity no longer forms. Therefore, the sterilization time is preferably 90 to 180 minutes.

[0103] The above sterilization time of 90 to 180 minutes may refer to a pure sterilization time. For example, if the sterilizing agent is EO gas, time is required to purify the toxicity of the EO gas after the sterilization process. Since the time to purify the toxicity of the EO gas alone takes 3 to 6 hours, the time from the start of sterilization to purification may take 4.5 to 9 hours. That is, the sterilization time is preferably 1.5 hours (90 minutes) to 3 hours (180 minutes), which is a pure sterilization time obtained by subtracting 3 to 6 hours for the purification time from 4.5 to 9 hours, which is the time from the start of sterilization to purification.

[0104] After completing the manufacturing of the thread (1) for skin lifting procedure within the cannula (6) as described above, the cannula (6) with the cap (9) covered can be taken out from the sterilization room and sold as a product in this state. That is, after completing the manufacturing of the thread (1) for skin lifting procedure within the cannula (6) as described above, the sterilization packaging material containing the cannula (6) with the cap (9) covered can be taken out from the sterilization room and sold as a product in this state.

[0105] Meanwhile, since the multiple thorns (200, 300) of the skin lifting treatment thread (1) manufactured as described above have a three-dimensional shape (3D shape), the skin lifting effect can be improved when the user performs a skin lifting treatment, compared to the existing skin lifting treatment thread having multiple thorns in a 2D shape.

[0106] The inventor of the present invention conducted a test to prove that the thread (1) for skin lifting treatment having a plurality of thorns (200, 300) in a 3D shape has a skin lifting effect compared to the existing thread for skin lifting treatment having a plurality of thorns in a 2D shape. This will be described below with reference to FIGS. 5 to 7.

[0107] FIG. 5 is a drawing showing a state in which a skin lifting treatment thread of a skin lifting treatment device according to an embodiment of the present invention is inserted into a piece of meat.

[0108] Referring to Fig. 5, a thread (1) for skin lifting treatment having multiple thorns (200, 300) of the 3D shape was inserted into a piece of meat (M). When inserting the thread (1) for skin lifting treatment into the piece of meat (M), the first area (A1, see Figs. 8 and 9), which is the actual area for lifting the user's sagging skin, among the threads (1), was inserted into the piece of meat (M).

[0109] In addition, a thread for skin lifting treatment having multiple thorns in the existing 2D shape was inserted into a meat lump (M) of the same size and material as the meat lump (M) into which the thread for skin lifting treatment (1) was inserted.

[0110] FIG. 6 is a graph showing the resistance measured when a thread for skin lifting treatment with multiple thorns in a 2D shape is inserted in the same state as FIG. 5, a piece of meat is fixed to the clamp of a tensile strength tester, and the thread is pulled in the direction of the arrow. FIG. 7 is a graph showing the resistance measured when a thread for skin lifting treatment with multiple thorns in a 3D shape is inserted in the same state as FIG. 5, a piece of meat is fixed to the clamp of a tensile strength tester, and the thread is pulled in the direction of the arrow.

[0111] Referring to FIGS. 5 to 7, when a piece of meat (M) having a thread for skin lifting with multiple thorns in a conventional 2D shape was inserted into a clamp of a tensile strength tester and the thread for skin lifting with multiple thorns in a conventional 2D shape was pulled in the direction of the arrow, the resistance measured in the tensile strength tester was as shown in FIG. 6. In addition, when a piece of meat (M) having a thread (1) for skin lifting with multiple thorns (200, 300) in a conventional 3D shape was inserted into a clamp of a tensile strength tester and the thread (1) for skin lifting with multiple thorns (200, 300) in a conventional 3D shape was pulled in the direction of the arrow, the resistance measured in the tensile strength tester was as shown in FIG. 7.

[0112] That is, the graph of Fig. 6 shows a form in which the resistance measured by the tensile strength tester increases to a maximum once, and the graph of Fig. 7 shows a form in which the resistance measured by the tensile strength tester increases to a maximum twice. This means that while the multiple thorns of the existing 2D shape can no longer get caught on the meat while tearing the meat when the resistance is measured to be maximum, the multiple thorns (200, 300) of the present 3D shape get caught on the meat once more and the resistance is measured even when tearing the meat when the resistance is measured to be maximum for the first time.

[0113] Therefore, the thread (1) for skin lifting treatment having multiple thorns (200, 300) in the 3D shape has a skin lifting effect compared to the thread for skin lifting treatment having multiple thorns in the existing 2D shape.

[0114] Fig. 8 is a perspective view showing the thread for skin lifting treatment shown in Figs. 1 and 2, and Fig. 9 is an enlarged view of a portion of the first area, the second area, and the third area shown in Fig. 8.

[0115] Referring to FIGS. 8 and 9, a thread (1) for skin lifting treatment according to an embodiment of the present invention may include a thread body (100) and a plurality of thorns (200, 300) protrudingly formed on the outer surface of the thread body (100).

[0116] The thread body (100) can be formed to a predetermined length so that it can be inserted into the user's skin to perform a skin lifting procedure. The length of the thread (1) for skin lifting procedure according to an embodiment of the present invention is formed to be 30 mm to 450 mm. That is, the length of the thread body (100) can be formed to be 30 mm to 450 mm. Since the length, area, and shape of the face vary depending on the user, the length of the thread body (100) can be formed to various lengths within the range of 30 mm to 450 mm to suit the user's facial contour.

[0117] The real body (100) may have a first region (A1) and a second region (A2) along its length. Here, the first region (A1) may refer to a region in which a plurality of first thorns (200) are protruded from the outer surface of the real body (100), and the second region (A2) may refer to a region in which a plurality of first thorns (200) and a plurality of second thorns (300) are protruded from the outer surface of the real body (100).

[0118] That is, the plurality of thorns (200, 300) may include a first thorn (200) and a second thorn (300).

[0119] The first thorn (200) is formed in multiple numbers in each of the first region (A1) and the second region (A2). The first thorn (200) may be formed by multiple first thorns (200) formed in the first region (A1) and multiple first thorns (200) formed in the second region (A2).

[0120] The second thorn (300) may be formed in multiple pieces in the second area (A2). The second thorn (300) may be formed by a plurality of second thorns (300) formed in the second area (A2).

[0121] The first thorn (200) may have an end facing a first direction, and the second thorn (300) may have an end facing a second direction. That is, the end of the first thorn (200) may face the first direction, and the end of the second thorn (300) may face the second direction. Here, the first direction and the second direction may be opposite directions. That is, the first direction may be a direction opposite to the second direction, and the second direction may be a direction opposite to the first direction.

[0122] Specifically, the first direction and the second direction may be the longitudinal direction of the real body (100). That is, the first direction may be one direction among the longitudinal directions of the real body (100), and the second direction may be the other direction among the longitudinal directions of the real body (100). In this case, the end of the first thorn (200) may be oriented toward one direction among the longitudinal directions of the real body (100), and the end of the second thorn (300) may be oriented toward the other direction among the longitudinal directions of the real body (100).

[0123] The first area (A1) is a practical area for lifting the user's sagging skin, and the user's sagging skin can be lifted using a plurality of first thorns (200) arranged in the first area (A1). And, the second area (A2) is an area in which the longitudinal movement of the real body (100) is fixed so that the first area (A1) in which the user's skin lifting procedure has been completed is prevented from moving in both directions along the length of the real body (100). The plurality of second thorns (300) arranged in the second area (A2) can prevent the second area (A2) from moving toward the first area (A1) and thus prevent the first area (A1) from sagging again in the opposite direction to the lifting direction, and the plurality of first thorns (200) arranged in the second area (A2) can prevent the second area (A2) from moving in the lifting direction of the first area (A1) and thus prevent the plurality of first thorns (200) arranged in the first area (A1) from excessively pulling the skin of the user who has completed the procedure.

[0124] That is, the plurality of first thorns (200) formed in the first area (A1) can have the function of pulling the skin by catching on the skin when the thread (1) is inserted into the skin and lifting it. In addition, the plurality of second thorns (300) formed in the second area (A2) can have the function of preventing the skin from sagging again in the opposite direction of the lifting direction by catching on the skin when the lifting procedure is completed. In addition, the plurality of first thorns (200) formed in the second area (A2) can prevent the skin from being excessively lifted only in the first area (A1) by only the first thorns (200) in the first area (A1) being caught on the skin when the lifting procedure is completed, and compared to a case where the plurality of first thorns (200) are not formed in the second area (A2), the skin in the second area (A2) as well as the first area (A1) is lifted during the procedure, so that the plurality of first thorns (200) generate overall stimulation, and thus can have the function of improving collagen production in the skin.

[0125] In this way, the first thorns (200) formed in multiple numbers in each of the first region (A1) and the second region (A2) have ends facing the first direction, and the second thorns (300) formed in multiple numbers in the second region (A2) have ends facing the second direction, which is opposite to the first direction, so that the first region and the second region, which are on both sides of the length direction of the thread (1), are supported within the skin, thereby enhancing the lifting effect of the skin and improving the collagen production effect.

[0126] The length of the second region (A2) may be formed to be longer than the length of the first region (A1). However, since the length, area, and shape of the face vary from user to user, the length of the first region (A1) and the length of the second region (A2) may be variously changed. That is, the length of the first region (A1) may be formed to be longer than the length of the second region (A2), or the length of the first region (A1) may be formed to be the same length as the length of the second region (A2).

[0127] Additionally, the actual body (100) may further have a third region (A3) between the first region (A1) and the second region (A2) along its length. Here, the outer surface of the third region (A3) may be an area where multiple thorns (200, 300) are not formed. The third region (A3) may be an area that can be easily bent when the user performs a skin lifting procedure.

[0128] If, instead of forming a plurality of first thorns (200) protruding in the second area (A2), only a plurality of second thorns (300) protruding, the second area (A2) has a shape symmetrical to the first area (A1), when the user performs a skin lifting procedure by excessively pulling the lifting thread, the skin may be raised from the first area (A1) to the second area (A2) and may become sunken like a dimple, or the raised skin may be caught in the second area (A2) and may be gathered in the third area (A3). However, in the embodiment of the present invention, since a plurality of first thorns (200) and a plurality of second thorns (300) are formed in the second area (A2), the above problem can be prevented.

[0129] Since the length, area, and shape of the face vary from user to user, the length of the third area (A3) can be formed to various lengths that fit the user's facial contour. However, in the present embodiment, the third area (A3) can be formed to be longer than the interval (C2, see FIG. 11) at which the second set of thorns (S2, see FIG. 11) are arranged in multiple pieces.

[0130] One end of the thread body (100) may be positioned close to the first area (A1), and the other end of the thread body (100) may be positioned close to the second area (A2). A plurality of thorns (200, 300) may not be formed on the outer surface of the one end of the thread body (100), and a plurality of thorns (200, 300) may not be formed on the outer surface of the other end of the thread body (100). The length of the other end of the thread body (100) may be formed longer than the length of the one end of the thread body (100). The one end of the thread body (100) may be a portion positioned in a direction in which the thread body is inserted into the user's skin during a skin lifting procedure, and may be inserted into the user's skin from the one end of the thread body (100).

[0131] FIG. 10 is an enlarged view of a portion of the first region shown in FIG. 8, FIG. 11 is an enlarged view of a portion of the second region shown in FIG. 8, FIG. 12 is a left side view of FIG. 10, showing a first thorn formed in the first region, and FIG. 13 is a left side view of FIG. 11, showing a second thorn formed in the second region.

[0132] Referring to FIGS. 10 to 13, the first thorn (200) may include a first-first thorn (210) and a first-second thorn (220).

[0133] The first-first thorn (210) can be placed on one side of the outer surface of the main body (100), and the first-second thorn (220) can be placed on the other side of the outer surface of the main body (100).

[0134] The first-second thorn (220) may be positioned at a portion corresponding to the right side of the first-first thorn (210) in the longitudinal direction of the main body (100). That is, the first-first thorn (210) and the first-second thorn (220) may be formed continuously in the longitudinal direction of the main body (100), but may be positioned in opposite directions on the outer surface of the main body (100).

[0135] The first-first thorn (210) and the first-second thorn (220) can be sequentially arranged from a distant position in the second region (A2) to form a first set of thorns (S1). In the first region (A1), a plurality of first set thorns (S1) can be arranged at equal intervals (C1) along the length of the real body (100). That is, in the first region (A1), a plurality of first set thorns (S1) can be arranged at equal intervals (C1) along the length of the real body (100).

[0136] The second thorn (300) may include a second-first thorn (310) and a second-second thorn (320).

[0137] The second-first thorn (310) can be placed on the other side of the outer surface of the main body (100), and the second-second thorn (320) can be placed on one side of the outer surface of the main body (100).

[0138] The second-first thorn (310) may be positioned at a portion immediately adjacent to the first-first thorn (210) in the longitudinal direction of the main body (100). That is, the first-first thorn (210) and the second-first thorn (310) may be formed continuously in the longitudinal direction of the main body (100), but may be positioned in opposite directions on the outer surface of the main body (100).

[0139] The second-second thorn (320) may be positioned at a portion corresponding to the right side of the second-first thorn (310) in the longitudinal direction of the main body (100). That is, the second-first thorn (310) and the second-second thorn (320) may be formed continuously in the longitudinal direction of the main body (100), but may be positioned in opposite directions on the outer surface of the main body (100).

[0140] The second-second thorn (320), the second-first thorn (310), the first-first thorn (210), and the first-second thorn (220) may be sequentially arranged from a position close to the first region (A1) to form a second set of thorns (S2). In the second region (A2), a plurality of second set thorns (S2) may be arranged at equal intervals (C2) along the length of the real body (100). That is, in the second region (A2), a plurality of second set thorns (S2) may be arranged at equal intervals (C2) along the length of the real body (100).

[0141] The interval (C2) at which the second set of thorns (S2) are arranged in multiple pieces may be formed longer than the interval (C1) at which the first set of thorns (S1) are arranged in multiple pieces. Since the number of thorns (200, 300) formed in the second area (A2) is greater than the number of thorns (200) formed in the first area (A1), there may be a problem in that the second area (A2) is less likely to bend along the user's facial contour than the first area (A1) when the user undergoes a skin lifting procedure. To solve this problem, the interval (S2) at which the plurality of second set of thorns (S2) are formed longer than the interval (C1) at which the plurality of first set of thorns (S1) are arranged, thereby making it easier for the second area (A2) to bend when the user undergoes a skin lifting procedure.

[0142] Meanwhile, when the user's skin lifting procedure is completed using the thread (1), the user's internal skin tissues must be caught by the first thorn (200) formed in the first area (A1) and the second thorn (300) formed in the second area (A2) in order to improve the skin lifting effect. That is, the larger the skin hanging space (HS, see FIG. 16) formed between the lifting surface (230, see FIGS. 14 to 16) of the thorns (200, 300) and the thread main body (100), the more the user's skin is caught by the skin hanging space (HS) during the user's skin lifting procedure, thereby improving the skin lifting effect. In addition, since the surface area in contact with the internal skin tissues is large, when the user's skin lifting procedure is completed, collagen production can be promoted between the user's skin and the thread.

[0143] Below, the specific structure of the thorns (200, 300) for enhancing the skin lifting effect will be described with reference to FIGS. 14 to 17. However, the first thorn (200) and the second thorn (300) may be formed to have the same shape and size as each other, except that the directions of their respective ends are opposite to each other. That is, the first-first thorn (210), the first-second thorn (220), the second-first thorn (310), and the second-second thorn (320) may be formed to have the same shape and size as each other. In this way, since the first thorn (200) and the second thorn (300) are formed to have the same structure, only the first-second thorn (220) will be described as an example and referred to as the thorn (220).

[0144] FIG. 14 is a perspective view showing the 1-2 thorns shown in FIGS. 10 and 11, FIG. 15 is a rear-side bottom perspective view showing the 1-2 thorns shown in FIGS. 10 and 11, and FIG. 16 is an enlarged view showing the 1-2 thorns shown in FIGS. 10 and 11.

[0145] Referring to FIGS. 14 to 16, the thorn (220) may have a concave first folded surface (233) formed on the lifting surface (230). Here, the lifting surface (230) may be a surface on which the user's skin is caught during or after the user's skin lifting procedure. That is, referring to FIG. 9, when the user's skin lifting procedure is performed, the lifting surface (230) of the first thorn (200) formed in the first area (A1) may catch the user's sagging skin and lift the sagging skin, and when the user's skin lifting procedure is completed, the lifting surface (230) of the second thorn (300) formed in the second area (A2) may catch the user's skin and support the skin lifted by the lifting surface (230) of the first thorn (200) formed in the first area (A1) so that it does not sag again.

[0146] Since a concave first folded surface (233) is formed on the lifting surface (230), the skin-catching space (HS, see FIG. 16) formed between the actual body (100) and the lifting surface (230) can be widened, and thus, the amount of the user's skin caught in the skin-catching space (HS) during or after the user's skin lifting procedure is increased, thereby improving the skin lifting effect.

[0147] The lifting surface (230) may include a first lifting surface (231) and a second lifting surface (232). The first folding surface (233) may be arranged between the first lifting surface (231) and the second lifting surface (232). The first lifting surface (231) may be a portion that is arranged closer to the actual body (100) based on the first folding surface (233). The second lifting surface (232) may be a portion that is arranged farther from the actual body (100) based on the first folding surface (233).

[0148] The first lifting surface (231) and the second lifting surface (232) may be arranged at different angles relative to the length of the actual body (100). The first lifting surface (231) and the second lifting surface (232) may be formed as a flat surface. Both sides of the lifting surface (230) may be formed as a convex round shape.

[0149] The plurality of thorns (220) may be formed as an inclined surface (240) that is arranged so that the opposite side of the lifting surface (230) is inclined relative to the length of the thread body (100). When performing a skin lifting procedure on a user, the doctor may perform the procedure by moving the thread (1) placed inside the user's skin slightly in both directions in the longitudinal direction. That is, when performing a skin lifting procedure on a user, the doctor may repeat the motion of pulling the thread (1) placed inside the user's skin in the lifting direction and then pushing it in the opposite direction. Since the inclined surface (240) is formed to be inclined, when the doctor pushes the thread (1) in the opposite direction to the lifting direction, the user's skin may be minimized from being pushed by the inclined surface (240).

[0150] In particular, a concave second folded surface (243) may be formed on the inclined surface (240). When the doctor pushes the thread (1) in the opposite direction to the lifting direction, the second folded surface (243) can prevent the user's skin from being pushed too far by the inclined surface (240).

[0151] The inclined surface (240) may include a first inclined surface (241) and a second inclined surface (242). The second folded surface (243) may be formed on the first inclined surface (241) and the second inclined surface (242). The first inclined surface (241) may be a portion that is arranged closer to the main body (100) with respect to the second folded surface (243). The second inclined surface (242) may be a portion that is arranged farther from the main body (100) with respect to the second folded surface (243). The first inclined surface (241) and the second inclined surface (242) may be arranged to be inclined at different angles with respect to the length of the main body (100). The first inclined surface (241) and the second inclined surface (242) may be formed as a plane. Both sides of the inclined surface (240) may be formed in a convex round shape. The space between the first inclined surface (241) and the second folded surface (243) can be formed into a convex round shape.

[0152] A plurality of thorns (220) may be formed as a parallel plane (250) that is parallel to the length of the thread body (100) at the plane connecting the end of the lifting surface (230) and the end of the inclined surface (240). The parallel plane (250) is arranged parallel to the length of the thread body (100), so that when a doctor repeatedly pulls the thread (1) placed inside the user's skin in the lifting direction and then pushes it in the opposite direction during a skin lifting procedure, the thread (1) can be easily moved in the longitudinal direction inside the user's skin.

[0153] The parallel plane (250) may be the plane that is positioned farthest from the actual body (100) among the planes of the thorn (200). The parallel plane (250) may be formed as a plane. Both sides of the parallel plane (250) may be formed in a convex round shape. The area between the parallel plane (250) and the second lifting plane (232) may be formed in a convex round shape. The area between the parallel plane (250) and the second inclined plane (242) may be formed in a convex round shape.

[0154] Both sides of the plurality of thorns (220) can be formed as a plane (260) orthogonal to the parallel plane (250). The plane (260) is formed orthogonal to the parallel plane (250), so that when a doctor repeatedly pulls the thread (1) placed inside the user's skin in the lifting direction and then pushes it in the opposite direction during a skin lifting procedure, the thread (1) can be easily moved longitudinally inside the user's skin.

[0155] Figure 17 is a schematic diagram of the first and second thorns shown in Figure 16.

[0156] Referring to FIGS. 16 and 17, the inner angle (D1) between the first lifting surface (231) with respect to the length of the actual body (100) may be formed at an angle that is at least twice as large as the inner angle (D2) between the second lifting surface (232) with respect to the length of the actual body (100). Through this, when the user undergoes a skin lifting procedure, the thorn (220) is not deformed and remains fixed even when pushed in the opposite direction to the lifting direction by the skin caught in the skin catch space (HS), thereby preventing the skin caught in the skin catch space (HS) from coming off. If the first folded surface (233) is not formed on the lifting surface (230), there is a problem that the thorn (220) must be formed thinly or the size of the thorn (200) must be formed large in order to form a wide skin-catching space (HS). Therefore, to prevent the above problem, it is preferable that the first folded surface (233) be formed on the lifting surface (230).

[0157] In this embodiment, the inner angle (D1) of the first lifting surface (231) with respect to the length of the real body (100) is formed as 53.5°, and the inner angle (D2) of the second lifting surface (232) with respect to the length of the real body (100) is formed as 21.5°. However, the inner angle (D1) of the first lifting surface (231) with respect to the length of the real body (100) may be formed as 25° to 85°, and the inner angle (D2) of the second lifting surface (232) with respect to the length of the real body (100) may be formed as 5° to 60°.

[0158] If the inner angle (D1) between the first lifting surface (231) with respect to the length of the thread body (100) is formed at an angle smaller than 25°, there may be a problem that the skin-catching space (HS) is formed narrowly, thereby reducing the skin lifting effect. If the inner angle is formed at an angle larger than 85°, there may be a problem that the longitudinal movement of the thread (1) within the user's skin is not easy during the user's skin lifting procedure. Therefore, it is preferable that the inner angle (D1) between the first lifting surface (231) with respect to the length of the thread body (100) is formed at 25° to 85°.

[0159] If the inner angle (D2) between the second lifting surface (232) with respect to the length of the thread body (100) is formed at an angle less than 5°, there may be a problem that the skin-catching space (HS) is formed narrowly, thereby reducing the skin lifting effect. If the inner angle is formed at an angle greater than 60°, there may be a problem that the longitudinal movement of the thread (1) within the user's skin is not easy during the user's skin lifting procedure. Therefore, it is preferable that the inner angle (D2) between the second lifting surface (232) with respect to the length of the thread body (100) is formed at 5° to 60°.

[0160] The inner angle (D3) between the first inclined surface (241) with respect to the length of the real body (100) can be formed at a larger angle than the inner angle (D4) between the second inclined surface (242) with respect to the length of the real body (100). Through this, among the widths of the thorn (220) in the longitudinal direction of the real body (100), the width of the part closer to the real body (100) is formed wider than the width of the part farther away, thereby preventing the thorn (220) from being easily deformed during a user's skin lifting procedure.

[0161] In this embodiment, the inner angle (D3) of the first inclined plane (241) with respect to the length of the real body (100) is formed as 33.6°, and the inner angle (D4) of the second inclined plane (242) with respect to the length of the real body (100) is formed as 30.3°. However, the inner angle (D3) of the first inclined plane (241) with respect to the length of the real body (100) may be formed as 25° to 85°, and the inner angle (D4) of the second inclined plane (242) with respect to the length of the real body (100) may be formed as 5° to 60°.

[0162] If the inner angle (D3) between the first inclined surface (241) with respect to the length of the thread body (100) is formed at an angle smaller than 25°, the width of the thorn (220) in the longitudinal direction of the thread body (100) may be formed narrowly, which may cause the thorn (220) to be easily deformed during a skin lifting procedure on the user. If the inner angle is formed at an angle larger than 85°, the longitudinal movement of the thread (1) within the user's skin may not be easy during a skin lifting procedure on the user. Therefore, it is preferable that the inner angle (D3) between the first inclined surface (241) with respect to the length of the thread body (100) be formed at 25° to 85°.

[0163] If the inner angle (D4) between the second inclined surface (242) with respect to the length of the thread body (100) is formed at an angle smaller than 5°, the width of the thorn (220) in the longitudinal direction of the thread body (100) may be formed narrowly, which may cause the thorn (220) to be easily deformed during a skin lifting procedure on the user. If the angle is formed at a greater angle than 60°, there may be a problem that the longitudinal movement of the thread (1) within the user's skin may not be easy during a skin lifting procedure on the user. Therefore, it is preferable that the inner angle (D3) between the first inclined surface (241) with respect to the length of the thread body (100) be formed at 5° to 60°.

[0164] The inner angle (D1) of the first lifting surface (231) with respect to the length of the real body (100) can be formed at a greater angle than the inner angle (D3) of the first inclined surface (241) with respect to the length of the real body (100), and the inner angle (D4) of the second inclined surface (242) with respect to the length of the real body (100) can be formed at a greater angle than the inner angle (D2) of the second lifting surface (232) with respect to the length of the real body (100). That is, the inner angle (D2) of the second lifting surface (232) relative to the length of the real body (100), the inner angle (D4) of the second inclined surface (242) relative to the length of the real body (100), the inner angle (D3) of the first inclined surface (241) relative to the length of the real body (100), and the inner angle (D1) of the first lifting surface (231) relative to the length of the real body (100) can be sequentially formed at large angles.

[0165] The protruding length (L2) of the second lifting surface (232) may be formed to be longer than the protruding length (L1) of the first lifting surface (231). Through this, the skin-holding space (HS) is formed wide, thereby improving the skin lifting effect when the user performs a skin lifting procedure.

[0166] In this embodiment, the protrusion length (L1) of the first lifting surface (231) is formed to be 0.1395 mm, and the protrusion length (L2) of the second lifting surface (232) is formed to be 0.5770 mm. However, the protrusion length (L1) of the first lifting surface (231) may be formed to be 0.0395 mm to 0.2395 mm, and the protrusion length (L2) of the second lifting surface (232) may be formed to be 0.4770 mm to 0.6770 mm.

[0167] If the protrusion length (L1) of the first lifting surface (231) is formed to be shorter than 0.0395 mm, there may be a problem that the skin-holding space (HS) is formed to be narrow, thereby reducing the skin-lifting effect. If the protrusion length (L1) of the first lifting surface (231) is formed to be longer than 0.2395 mm, there may be a problem that the thorn (220) is easily deformed when the user performs a skin-lifting procedure. Therefore, it is preferable that the protrusion length (L1) of the first lifting surface (231) be formed to be 0.0395 mm to 0.2395 mm.

[0168] If the protrusion length (L2) of the second lifting surface (232) is formed to be shorter than 0.4770 mm, there may be a problem that the skin-holding space (HS) is formed to be narrow, thereby reducing the skin-lifting effect. If the protrusion length (L2) of the second lifting surface (232) is formed to be longer than 0.6770 mm, there may be a problem that the thorn (220) is easily deformed when the user performs a skin-lifting procedure. Therefore, it is preferable that the protrusion length (L2) of the second lifting surface (232) be formed to be 0.4770 mm to 0.6770 mm.

[0169] The protruding length (L4) of the second inclined surface (242) may be formed to be longer than the protruding length (L3) of the first inclined surface (241). Through this, the inclination of the inclined surface (230) is formed to be low, thereby facilitating longitudinal movement of the thread (1) within the user's skin during a skin lifting procedure.

[0170] In this embodiment, the protrusion length (L3) of the first inclined surface (241) is formed to be 0.2004 mm, and the protrusion length (L4) of the second inclined surface (242) is formed to be 0.4315 mm. However, the protrusion length (L3) of the first inclined surface (241) may be formed to be 0.1004 mm to 0.3004 mm, and the protrusion length (L4) of the second inclined surface (242) may be formed to be 0.3315 mm to 0.5315 mm.

[0171] If the protruding length (L3) of the first inclined surface (241) is formed to be shorter than 0.1004 mm, the inclination of the inclined surface (240) may be formed to be high, which may cause a problem in that the user's skin may be pushed by the inclined surface (240) during a skin lifting procedure. If the protruding length (L3) of the first inclined surface (241) is formed to be longer than 0.3004 mm, which may cause a problem in that the thorn (220) may be easily deformed during a skin lifting procedure. Therefore, it is preferable that the protruding length (L3) of the first inclined surface (241) be formed to be 0.1004 mm to 0.3004 mm.

[0172] If the protruding length (L4) of the second inclined surface (242) is formed to be shorter than 0.3315 mm, the inclined surface (240) may be formed to have a high incline, which may cause a problem in that the user's skin may be pushed by the inclined surface (240) during a skin lifting procedure. If the protruding length (L4) of the second inclined surface (242) is formed to be longer than 0.5315 mm, the thorn (220) may be easily deformed during a skin lifting procedure. Therefore, it is preferable that the protruding length (L4) of the second inclined surface (242) be formed to be 0.3315 mm to 0.5315 mm.

[0173] The longitudinal length (L5) of the real body (100) of the parallel surface (250) can be formed longer than the protruding length (L2) of the second lifting surface (232).

[0174] In this embodiment, the longitudinal length (L5) of the real body (100) of the parallel surface (250) is formed to be 0.7431 mm. However, the longitudinal length (L5) of the real body (100) of the parallel surface (250) may be formed to be 0.6431 mm to 0.8431 mm.

[0175] If the longitudinal length (L5) of the real body (100) of the parallel surface (250) is formed to be shorter than 0.6431 mm, the longitudinal width of the real body (100) of the thorn (220) is formed to be narrow, which may cause a problem in that the thorn (220) is easily deformed when the user undergoes a skin lifting procedure. If the longitudinal width of the real body (100) of the thorn (220) is formed to be longer than 0.8431 mm, the longitudinal width of the real body (100) of the thorn (220) is formed to be wide, which may cause a problem in that the user's skin is pushed by the inclined surface (240) when the user undergoes a skin lifting procedure. Therefore, it is preferable that the longitudinal length (L5) of the real body (100) of the parallel surface (250) is formed to be 0.6431 mm to 0.8431 mm.

[0176] The protrusion length (L3) of the first inclined surface (241) may be formed longer than the protrusion length (L1) of the first lifting surface (231), the protrusion length (L2) of the second lifting surface (232) may be formed longer than the protrusion length (L4) of the second inclined surface (242), and the longitudinal length (L5) of the real body (100) of the parallel surface (250) may be formed longer than the protrusion length (L2) of the second lifting surface (232). That is, the protrusion length (L1) of the first lifting surface (231), the protrusion length (L3) of the first inclined surface (241), the protrusion length (L4) of the second inclined surface (242), the protrusion length (L2) of the second lifting surface (232), and the longitudinal length (L5) of the real body (100) of the flat surface (250) may be formed to be sequentially longer.

[0177]

[0178] As described above, according to the method for manufacturing a skin lifting treatment device (1000) according to an embodiment of the present invention and the skin lifting treatment device (1000) manufactured using the same, a thread (1) for skin lifting treatment having a plurality of thorns (200, 300) formed thereon is formed within a cannula (6) for sale as a product, so that the thread (1) can be sold together with the cannula (6) in a state of being formed within the cannula (6) without having to manufacture the thread (1) separately from the cannula (6) and install it in the cannula (6), thereby simplifying the manufacturing process.

[0179]

[0180] Those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential characteristics thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims that follow rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

[0181]

[0182] The present invention provides a method for manufacturing a skin lifting treatment device capable of forming a thread for skin lifting treatment with a plurality of thorns formed within a cannula, and a skin lifting treatment device manufactured using the same.

Claims

1. (S1) A step of penetrating the entire body of a thread for skin lifting treatment, in which multiple thorns protrude from the outer surface, through a cannula equipped with a handle at the rear end; (S2) A step of fixing the front end of the body of the thread protruding from the front end of the cannula to the front end of the cannula using a first holder; (S3) A step of twisting the entire body of the thread by rotating the rear end of the entire body of the thread protruding from the handle; (S4) A step of pulling the rear end of the entire body of the thread so that the entire body of the thread becomes taut and fixing it to the handle with a second holder; (S5) A step of placing a cap on the cannula and connecting the rear end of the cap to the handle; and (S6) A method for manufacturing a skin lifting treatment device, comprising: a step of applying a predetermined temperature to the cannula so that the twist of the entire body of the thread is maintained and the entire body of the plurality of thorns takes the shape of the plurality of thorns.

2. In claim 1, A method for manufacturing a skin lifting treatment device in which the above-mentioned predetermined temperature is the sterilization temperature of the thread.

3. In claim 2, A method for manufacturing a skin lifting treatment device wherein the above sterilization temperature is 38°C to 60°C.

4. In claim 3, A method for manufacturing a skin lifting treatment device that is sterilized for 90 to 180 minutes in the above step (S6).

5. In claim 2, A method for manufacturing a skin lifting treatment device, wherein in the step (S6), the cannula with the cap on is placed in a sterilizing packaging material and placed in a sterilizing room and the predetermined temperature is applied.

6. In claim 1, The plurality of thorns formed in the above step (S6) include a lifting surface that catches the user's inner skin tissue between the thread body of the thread, A method for manufacturing a skin lifting treatment device in which a concave first folding surface is formed on the above lifting surface.

7. A skin lifting treatment device manufactured using a method for manufacturing a skin lifting treatment device described in any one of claims 1 to 6.

8. A cannula with a handle at the rear end; A thread for skin lifting treatment that penetrates the cannula forward and backward and has multiple thorns protruding from the outer surface; A first holder that fixes the front end of the thread protruding from the front end of the cannula to the front end of the cannula; and A second holder for fixing the rear end of the thread protruding from the handle to the handle; The above thread is a skin lifting treatment device in which the part between the first holder and the second holder is formed of a twisted thread, and the front end based on the first holder and the rear end based on the second holder are formed of an untwisted thread.

9. In claim 8, The above multiple thorns are, Lifting surface, An inclined surface arranged at an angle relative to the length of the main body on the opposite side of the lifting surface, A parallel plane connecting the end of the lifting surface and the end of the inclined surface and being parallel to the length of the actual body, A skin lifting treatment device comprising two sides formed into a flat surface.

10. In claim 9, A skin lifting treatment device in which the plurality of thorns form a concave first folding surface on the lifting surface.

11. In claim 10, The above lifting surface is, A first lifting surface positioned close to the actual body based on the first folding surface, Including a second lifting surface positioned away from the actual body based on the first folding surface, A skin lifting treatment device in which the first lifting surface and the second lifting surface are arranged at different angles relative to the length of the actual body.

12. In claim 11, A skin lifting treatment device in which the inner angle between the first lifting surface and the length of the real body is formed at an angle that is at least twice as large as the inner angle between the second lifting surface and the length of the real body.

13. In claim 12, A skin lifting treatment device in which the protrusion length of the second lifting surface is formed to be longer than the protrusion length of the first lifting surface.

14. In claim 9, A skin lifting treatment device in which each of the lifting surface, the inclined surface, and the parallel surface has a convex round shape.

15. In claim 9, A skin lifting treatment device in which a concave second folding surface is formed on the above-mentioned slope.

16. In claim 15, The above slope is, A first inclined plane positioned close to the actual body based on the second folded surface, Including a second inclined surface positioned far from the actual body based on the second folded surface, A skin lifting treatment device in which the first inclined surface and the second inclined surface are arranged at different angles relative to the length of the actual body.

17. In claim 16, A skin lifting treatment device in which the inner angle between the first inclined surface and the length of the real body is formed at a larger angle than the inner angle between the second inclined surface and the length of the real body.

18. In claim 17, A skin lifting treatment device in which the protrusion length of the second inclined surface is formed longer than the protrusion length of the first inclined surface.

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