Cosmetic lifting thread

Abstract

According to one embodiment of the present invention, provided is a cosmetic lifting thread comprising: a body unit extended along a central axis and formed to include a first region and a second region having different length ratios; and a protrusion unit including a first region protrusion protruding from the first region of the body unit and a second region protrusion protruding from the second region of the body unit.

Description

Plastic surgery lifting thread

[0001] The present invention relates to a lifting thread for plastic surgery, and more particularly, to a lifting thread for plastic surgery developed for cosmetic and plastic surgery purposes to increase skin elasticity.

[0002] Recently, with the growing emphasis on appearance among people of all ages and genders, plastic surgery procedures aimed at looking younger have become increasingly popular. Simple procedures for a youthful appearance include wrinkle removal or smoothing.

[0003] Surgical methods for removing wrinkles include the incision method, which involves making a large incision in the skin and removing sagging tissue, and the minimally invasive surgery method, which does not require a large incision and simply lifts the area by placing a protrusion or barbed thread on the area. Recently, the minimally invasive surgery method, which allows for quick recovery and return to daily life, is preferred in the plastic surgery market.

[0004] Specifically, minimally invasive surgery is a surgical method that removes wrinkles and tightens the skin by lifting up the superficial musculo-aponeurotic system (SMAS) layer and the aged soft tissue underneath the skin together with absorbable threads without making an incision in the skin.

[0005] Typically, lifting threads have protrusions (b) protruding from both ends of the body (a), as shown in Fig. 1. The protrusions (b) are formed in a symmetrical structure, slanted in one or the other direction, to resist movement of the lifting thread in the direction opposite to the one or the other. In other words, the lifting thread lifts sagging or inelastic skin by lifting skin tissue in the opposite direction of gravity, which is called traction.

[0006] If the protrusion (b) of the lifting thread can no longer withstand the traction or tissue catching force and is torn, turned over in the direction of the traction or broken, the skin will sag again and the lifting effect will be reduced.

[0007] The present invention is intended to solve the problems of the prior art described above, and an object of the present invention is to provide a lifting thread for molding having improved traction or tissue catching force.

[0008] One aspect of the present invention provides a molding lifting thread having a body portion formed to include a first region and a second region extending along a central axis and having different length ratios, and a protrusion portion formed including a first protrusion protruding from the first region of the body portion and a second protrusion protruding from the second region of the body portion.

[0009] In one embodiment, each protrusion of the protrusion may include an inclined portion that protrudes at an angle relative to the body portion and a hook portion that is recessed into the body portion at an end of the inclined portion.

[0010] In one embodiment, the length ratio of the first region and the second region may be 1:1.15 to 2.

[0011] In one embodiment, the length ratio of the first region and the second region may be 1:1.19 to 1.7.

[0012] In one embodiment, the length ratio of the first region and the second region may be 1:1.25 to 1.56.

[0013] In one embodiment, the first protrusion may be arranged so that its tip faces the second region, and the second protrusion may be arranged so that its tip faces the first region.

[0014] In one embodiment, the first area protrusion or the second area protrusion includes a first protrusion protruding from the body portion at a first angle and a second protrusion protruding from the body portion at a second angle smaller than the first angle, and the first protrusion and the second protrusion are arranged to intersect each other, providing a lifting thread for forming.

[0015] In one embodiment, the areas of the first protrusion and the second protrusion may be different.

[0016] In one embodiment, the first protrusion and the second protrusion may be arranged to cross each other at a ratio of 3:2.

[0017] In one embodiment, the first angle may be 45 degrees and the second angle may be 38 degrees.

[0018] In one embodiment, the first region protrusion and the second region protrusion may be arranged symmetrically about a point of the body portion.

[0019] In one embodiment, the slope and the hook portion may be formed to be curved.

[0020] In one embodiment, the body portion and the protrusion portion may be formed of one or more of PDO (Polydioxanone), polypropylene, Monocryl, PCL (polycarprolactone), PGA (Poly(glycolic acid)), and PLGA (Poly(lactic-co-glycolic acid)).

[0021] According to one aspect of the present invention, the first and second protrusions at different angles are arranged in a predetermined pattern so that the traction force of the lifting thread for forming can be improved.

[0022] In addition, the length ratio of the first region and the second region of the body part can be formed at a predetermined ratio, so that the traction force of the lifting thread for molding can be improved.

[0023] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0024] Figure 1 schematically illustrates a conventional lifting room.

[0025] Figure 2 schematically illustrates a lifting room for forming according to the first embodiment of the present invention.

[0026] Fig. 3 is another example of a protrusion of the present invention.

[0027] Figure 4 is a drawing for explaining the protrusion pattern of the lifting thread for molding of the examples and comparative examples.

[0028] Figure 5 schematically illustrates a lifting room for forming according to a second embodiment of the present invention.

[0029] Figure 6 is a drawing showing the results of measuring the traction force of a lifting thread for forming according to the length ratio of the first and second regions of the body part.

[0030] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0031] Throughout the specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with other elements intervening. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that the other components may be included, unless otherwise specifically stated.

[0032] Terms containing ordinal numbers, such as "first" or "second," used herein may be used to describe various components or steps, but such components or steps are not limited by the ordinal numbers. Terms containing ordinal numbers should be interpreted only to distinguish one component or step from other components or steps.

[0033] [Example 1]

[0034] Figure 2 schematically illustrates a lifting room for forming according to the first embodiment of the present invention.

[0035] Hereinafter, the lifting room for molding according to the first embodiment of the present invention will be described in detail with reference to FIG. 2.

[0036] As referenced in FIG. 2, a lifting room (100) for molding according to one embodiment of the present invention is configured to include a body portion (110) and a protrusion portion (120).

[0037] The body portion (110) is a thread-shaped body having a predetermined length and extends along a central axis. The body portion (110) may include a first region (111) configured on the left side with respect to the center (113), a second region (112) configured on the right side with respect to the center (113), and an extension portion (not shown) formed on the outside of the first region (111) and / or the second region (112). The length ratios of the first region (111) and the second region (112) may be the same, but as will be described later, the length ratios of the first region (111) and the second region (112) may be different from each other.

[0038] The body portion (110) can have a rotation angle of 45° / cm to 360° / cm along the central axis. When the body portion (110) is formed in a twisted structure, tensile strength and elasticity can be improved.

[0039] The protrusion (120) protrudes outward from the outer surface of the body (110) and is composed of a sloped portion (120a) and a hook portion (120b).

[0040] The inclined portion (120a) is formed to protrude from the outer surface of the body portion (110) so as to be inclined with respect to the central axis of the body portion (110), and the hook portion (120b) is formed to be recessed at the end of the inclined portion (120a) and connected to the outer surface of the body portion (110). Here, the angle (α) formed by the hook portion (120b) and the body portion (110) is formed to be greater than the angle (β) formed by the inclined portion (120a) and the body portion (110), so that the protrusion portion (120) is formed to have a structure with a pointed end. Preferably, the angle (α) formed by the body portion (110) and the hook portion (120b) may be formed to be 33° to 47°. If the angle is too large, the operability of the procedure may be reduced, and if the angle is too small, the area of ​​the surface fixed to the skin tissue may be narrow, thereby reducing the fixing ability.

[0041] In Fig. 2, the inclined portion (120a) and the hook portion (120b) are illustrated as straight lines or flat surfaces, but are not limited thereto. For example, as illustrated in Fig. 3, the inclined portion (120a) and the hook portion (120b) may be formed as curved or curved surfaces, i.e., curved. Preferably, the curvature of the hook portion (120b) may be formed to be greater than the curvature of the inclined portion (120a). In this case, the elasticity of the protrusion (120) is improved, so that the protrusion (120) can be more effectively hooked to the skin tissue.

[0042] Referring back to FIG. 2, a curved portion (not shown) may be formed at the connection point between the body portion (110) and the hook portion (120b). When the curved portion is formed at the hook portion (120b), even if the pulling force of the skin strongly acts on the protrusion portion (120), the stress is evenly distributed along the curved portion, so that the protrusion portion (120) does not flip over or break in the direction of skin pulling. The protrusion portion (120) is formed at the first region (111) and the second region (112) of the body portion (110), and may be arranged in a symmetrical structure based on the center (113).

[0043] The protrusions (120) can be formed on both sides of the body (110) so as to be symmetrical with respect to the central axis of the body (110), and the protrusions (120) can be formed spaced apart at a predetermined interval along the longitudinal direction of the body (110).

[0044] As the body portion (110) is formed in a twisted structure, the protrusion (120) may be formed to be spaced apart from the adjacent protrusion (120) along the longitudinal direction of the body portion (110) at a predetermined angle with respect to the central axis. For example, the protrusion (120) may be spaced apart from the adjacent protrusion (120) along the longitudinal direction of the body portion (110) at an angle of 45° with respect to the central axis.

[0045] The body portion (110) and the protrusion portion (120) may be made of the same material. Preferably, the body portion (110) and the protrusion portion (120) may be made of PDO (Polydioxanone), which is biodegradable and has an excellent retention period. Since the PDO component promotes collagen regeneration, it has the effect of maintaining the lifting effect even after the lifting thread has dissolved and disappeared.

[0046] In addition, the body portion (110) and the protrusion portion (120) may be manufactured from a monofilament biodegradable polymer composed of one or more of polypropylene, monocryl, polycarprolactone (PCL), poly(glycolic acid) (PGA), and poly(lactic-co-glycolic acid) (PLGA), but is not limited thereto, and any absorbent or non-absorbent material other than the above materials may be applied.

[0047] In one embodiment, the protrusion (120) may be composed of first and second protrusions (121, 122) formed at different angles. The angle (α1) formed between the body (110) and the first protrusion (121) may be formed at 45°, and the angle (α2) formed between the body (110) and the second protrusion (122) may be formed at 38°. In addition, the surface areas of the first protrusion (121) and the second protrusion (122) may be different. For example, as illustrated in FIG. 2, the surface area of ​​the first protrusion (121) may be formed to be larger than the surface area of ​​the second protrusion (122). However, the present invention is not limited thereto, and the first protrusion (121) and the second protrusion (122) may of course be formed at various angles.

[0048] In one embodiment, the first protrusion (121) and the second protrusion (122) may be arranged to intersect at a predetermined ratio. It is preferable that the first protrusion (121) and the second protrusion (122) be arranged to intersect at a ratio of 3:2.

[0049] Figure 4 is a drawing for explaining the protrusion pattern of the lifting thread for molding of the examples and comparative examples.

[0050] Hereinafter, the present invention will be described in more detail through examples and test examples with reference to FIGS. 2 and 4. These examples and test examples are merely presented to help understand the present invention, and the scope of the present invention is not limited to these examples and test examples. Modifications, substitutions, insertions, etc. commonly known in the art can be performed, and these are also included in the scope of the present invention.

[0051] [Example 1-1]

[0052] A first protrusion (121) at a 45° angle and a second protrusion (122) at a 38° angle were formed to intersect in a ratio of 3:2 in the first region (111) and the second region (112) of the body portion (110), and the first protrusion (121) was arranged adjacent to the center (113). Specifically, the angles of each protrusion (121, 122) were formed as shown in FIG. 3. In addition, the protrusions (121, 122) were arranged in a symmetrical structure with respect to the central axis of the body portion (110) and the center (113), and the spacing between the protrusions (121, 122) was formed to be the same.

[0053] [Example 1-2]

[0054] It was formed in the same manner as Example 1-1, except that the second protrusion (122) was positioned adjacent to the center (113).

[0055] [Comparative Example 1-1]

[0056] Except that the first protrusion (121) and the second protrusion (122) formed an angle of 38° with the body part (110), they were formed in the same manner as in Example 1-1.

[0057] [Comparative Example 1-2]

[0058] Except that the first protrusion (121) and the second protrusion (122) formed an angle of 45° with the body part (110), they were formed in the same manner as in Example 1-1.

[0059] [Comparative Example 1-3]

[0060] Except that the intersection ratio of the first protrusion (121) and the second protrusion (122) was formed as 1:1, it was formed in the same manner as Example 1-1.

[0061] [Test Example 1] Traction force test of lifting thread for molding

[0062] The traction force of the molding lifting threads of Examples 1-1 and 1-2 and Comparative Examples 1-1 to 1-3 was measured.

[0063] In detail, after inserting the entire protrusion of the plastic lifting thread into the experimental rat, the experimental rat was fixed to the lower part of the tensile testing machine, and one end of the plastic lifting thread exposed to the outside of the experimental rat was connected to the upper part, and the rat was pulled at a constant speed, and the maximum force (peak) measured by the tensile testing machine was recorded, and the results are shown in Table 1.

[0064]

[0065] Classification Traction Force (%) Example 1-1141.1 Example 1-2140.2 Comparative Example 1-1100 Comparative Example 1-2103.7 Comparative Example 1-391.7

[0066] As can be seen from Table 1, it was confirmed that Examples 1-1 and 1-2, in which the first and second protrusions were arranged in a ratio of 3:2, had superior traction force compared to Comparative Examples 1-1 to 1-3.

[0067] That is, it was confirmed that the traction force was effectively improved when the protrusions at a 45° angle and the protrusions at a 38° angle intersected at a ratio of 3:2.

[0068]

[0069] [Example 2]

[0070] Figure 5 schematically illustrates a lifting room for forming according to a second embodiment of the present invention.

[0071] Hereinafter, a lifting room (200) for forming according to a second embodiment of the present invention will be described in detail with reference to FIG. 5. Hereinafter, any overlapping portions with the previously described embodiment will be omitted, and similar reference numerals will be assigned to identical or similar components. (However, detailed positional relationships will be in accordance with the drawings corresponding to each embodiment.)

[0072] As referenced in FIG. 5, the body part (210) of the lifting room (200) for molding according to one embodiment of the present invention has a first region (211) and a second region (212) having different length ratios, and the protrusion part (220) includes a plurality of first region protrusions (221) arranged in the first region (211) and a plurality of second region protrusions (222) arranged in the second region (212).

[0073] More specifically, the first region (211) is formed to extend along the longitudinal direction of the body portion (210) by a first length (L1), and the first region protrusion (221) is arranged so that its tip faces the second region (212). The second region (112) is formed to extend along the longitudinal direction of the body portion (210) by a second length (L2), and the second region protrusion (222) is arranged so that its tip faces the first region (211).

[0074] In one embodiment, the length ratio (L1:L2) of the first region (211) and the second region (212) may be different. The length ratio (L1:L2) of the first region (211) and the second region (212) may be 1:1.15 to 2. The length ratio (L1:L2) of the first region (211) and the second region (212) may be 1:1.19 to 1.7. The length ratio (L1:L2) of the first region (211) and the second region (212) may be 1:1.25 to 1.56.

[0075] The present invention will be described in more detail through examples and test examples. These examples and test examples are provided solely to facilitate understanding of the present invention, and the scope of the present invention is not limited to these examples and test examples. Modifications, substitutions, and insertions commonly known in the art may be performed, and such modifications are also included within the scope of the present invention.

[0076] [Examples 2-1 to 2-13]

[0077] A body portion (210) having a predetermined thickness was formed with protrusions (221, 222) at a 38° angle, and the first region protrusion (221) was arranged so that its tip was directed toward the second region (212), and the second region protrusion (222) was arranged so that its tip was directed toward the first region (211). The spacing between the protrusions (220) was formed to be the same, and they were arranged in a symmetrical structure based on the central axis of the body portion (210).

[0078] In addition, the length ratio (L1:L2) of the first and second regions (211, 212) of the body part (210) was formed as 1:1.15, 1:1.17, 1:1.19, 1:1.25, 1:1.5, 1:1.56, 1:1.6, 1:1.7, 1:1.75, 1:1.8, 1:1.85, 1:1.9, 1:2.

[0079] [Comparative Examples 2-1 to 2-7]

[0080] Except that the length ratios (L1:L2) of the first and second regions (211, 212) of the body part (210) were formed as 1:1, 1:1.02, 1:1.03, 1:1.05, 1:1.07, 1:1.09, and 1:1.13, the same as in the embodiment was performed.

[0081] [Test Example 2] Traction force test of lifting thread for molding

[0082] The traction force of the lifting thread for molding in the examples and comparative examples was measured.

[0083] In detail, after inserting the entire protrusion of the plastic lifting thread into the experimental rat, the experimental rat was fixed to the lower part of the tensile testing machine, and one end of the plastic lifting thread exposed to the outside of the experimental rat was connected to the upper part, and the rat was pulled at a constant speed, and the maximum force (peak) measured by the tensile testing machine was recorded, and the results are shown in Fig. 6.

[0084] Referring to Figure 6, it can be seen that when the length ratio is in the range of 1:1 to 1:1.5, the traction force increases significantly as the length ratio increases. When the length ratio is in the range of 1:1.56 to 1:2, the traction force decreases slightly as the length ratio increases.

[0085] Specifically, when the length ratio is 1:1.15~2, the traction force of the molding lifting thread is improved by more than 6% compared to when the length ratio is 1:1. In particular, when the length ratio is 1:1.5, the traction force of the molding lifting thread is improved by approximately 10% compared to when the length ratio is 1:1.

[0086] Through this, it was confirmed that the traction force of the lifting thread for molding is effectively improved when the length ratio of the first region and the second region of the body part is 1:1.15 to 2, preferably 1:1.19 to 1.7, and more preferably 1:1.25 to 1.56.

[0087] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0088] The scope of the present invention is indicated by the claims set forth below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0089]

[0090] [Explanation of symbols]

[0091] 100, 200 lifting thread for plastic surgery

[0092] 110, 210 body parts

[0093] 120, 220 protrusions

Claims

1. A body portion formed to include a first region and a second region that extend along a central axis and have different length ratios; and A molding lifting thread having a protrusion formed thereon, the protrusion including a first region protrusion protruding from a first region of the body portion and a second region protrusion protruding from a second region of the body portion.

2. In paragraph 1, Each of the protrusions of the above protrusions is, A slanted portion protruding so as to be inclined relative to the above body portion, and A lifting thread for forming, comprising a hook portion that is inserted into the body portion at the end of the inclined portion.

3. In paragraph 1, Lifting room for forming, with a length ratio of the first and second areas of 1:1.15 to 2.

4. In paragraph 1, A lifting room for forming, with a length ratio of the first and second areas of 1:1.19 to 1.

7.

5. In paragraph 1, A lifting room for forming, with a length ratio of the first and second areas being 1:1.25 to 1.

56.

6. In paragraph 1, The above first region protrusion is arranged so that the tip faces the second region, The second region projection is a molding lifting thread, wherein the tip is positioned toward the first region.

7. In paragraph 1, The above first area protrusion or the above second area protrusion, It includes a first protrusion protruding from the body portion at a first angle and a second protrusion protruding from the body portion at a second angle smaller than the first angle. A lifting room for forming, wherein the first protrusion and the second protrusion are arranged intersectingly.

8. In paragraph 7, A lifting room for forming, wherein the areas of the first protrusion and the second protrusion are different.

9. In paragraph 7, A lifting room for forming, wherein the first protrusion and the second protrusion are arranged to intersect at a ratio of 3:

2.

10. In paragraph 7, The above first angle is 45 degrees, The second angle is 38 degrees, the lifting room for forming.

11. In paragraph 7, A molding lifting room in which the first region protrusion and the second region protrusion are arranged symmetrically with respect to a point of the body part.

12. In paragraph 2, A lifting thread for forming, wherein the above-mentioned inclined portion and the above-mentioned hook portion are formed to be curved.

13. In paragraph 1, A lifting thread for plastic surgery, wherein the body and the protrusion are made of at least one of PDO (Polydioxanone), polypropylene, Monocryl, PCL (polycarprolactone), PGA (Poly(glycolic acid)), and PLGA (Poly(lactic-co-glycolic acid)).

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