Lifting member for plastic surgery and manufacturing method therefor

Abstract

The present invention relates to a lifting member for plastic surgery and a manufacturing method therefor, in which the lifting member is divided into a first region wound around the outer circumferential surface of a needle part and a second region arranged in a hollow of the needle part, so that additional cutting of a lifting thread is not required, and the shape of the lifting thread is fixed so that the second region maintains an inverted U-shape in the hollow of the needle part, and thus the lifting thread is not expanded or released in the body tissue, thus being less likely to cause pain, thereby providing comfort to patients and maintaining the original shape as it is, which can result in further maximized volume effect upon injection into a site that is wrinkled, sunken, and requires volume.

Description

Lifting member for molding and method for manufacturing the same

[0001] The present invention relates to a lifting member for molding and a method for manufacturing the same.

[0002] In the past, non-invasive cosmetic procedures like botulinum toxin and fillers dominated the domestic aesthetic market, but recently, lifting procedures have garnered the most attention. Lifting procedures are known to be popular among middle-aged and older people for lifting sagging skin and improving elasticity due to aging. However, they are also gaining popularity among those in their 20s and 30s for correcting facial lines and asymmetry.

[0003] In the beginning, non-dissolvable, non-absorbable materials such as Aptoze Lifting were used, but since around 2011, absorbable materials such as PDO (Polydioxanone), PLLA (Poly L Lactic Acid), and PCL (Polycaprolactone) that are absorbed in the body after a certain period of time after the procedure have been used. Depending on the thread material, thickness, and presence and direction of the spines, there are many different types of threads, and depending on the shape, they are largely divided into mono thread as shown in Fig. 1a, cog thread as shown in Fig. 1b, which has spines unlike mono thread, and molding thread as shown in Fig. 1c, which is similar to cog thread but thicker and stronger. In addition, various types of threads are being developed, such as screw thread as shown in Fig. 1d, which is a form of mono thread applied for the purpose of improving volume, and coil thread as shown in Fig. 1e.

[0004] Meanwhile, Patent Document 1 discloses a moldable lifting member including a lifting thread, a hollow needle portion in which the lifting thread is accommodated, a drug-accommodating portion formed as a soft capsule and in which a pharmaceutical composition is accommodated inside, and a hollow cap that supports the drug-accommodating portion inside and is slidably arranged on the needle portion, and Patent Document 2 discloses a lifting member including a needle and a medical thread combined to wrap the outer surface of the needle.

[0005] However, Patent Document 1 has the inconvenience of having to cut the lifting thread to a desired length after insertion into body tissue because the lifting thread is accommodated in a single branch in a hollow needle portion, and Patent Document 2 has the problem that the lifting thread is provided only on the outer surface of the needle, so when inserted into body tissue, its shape is pressed by the tissue and becomes flatter than its original shape, making it difficult to apply to procedures aimed at volume or elasticity.

[0006] The purpose of the present invention is to solve the above-described problem, and to provide a lifting member for plastic surgery and a method for manufacturing the same, which is easy to operate because no additional cutting of the lifting thread is required and can maintain its original shape within body tissue.

[0007] In order to achieve the above object, a lifting member for molding according to one embodiment of the present invention includes a needle part having open ends and a hollow formed along the longitudinal direction, and a lifting thread that is folded so that one side and the other side are adjacent to each other to form a double line, and is composed of a first region wound around the outer circumferential surface of the needle part and a second region arranged in the hollow of the needle part.

[0008] In order to achieve the above object, a method for manufacturing a lifting member for molding according to another embodiment of the present invention includes the steps of positioning a guide thread in a hollow portion of a needle portion, passing one end of a lifting thread through an exposed portion of the guide thread and then overlapping one side and the other side of the lifting thread and winding them around an outer circumferential surface of the needle portion to form a first region of the lifting thread, pulling one end and the other end of the guide thread to form a second region of the lifting thread in the hollow portion of the needle portion, and pulling one end or the other end of the guide thread to remove the guide thread from the needle portion.

[0009] And, after removing the guide thread from the needle part, the step of heat-treating the needle part from which the guide thread has been removed may be further included.

[0010] According to one embodiment of the present invention, since all lifting threads can be inserted into body tissue, additional cutting of the lifting threads is not required, thereby making the procedure easier.

[0011] According to another embodiment of the present invention, the lifting thread is divided into a first region wound around the outer surface of the needle portion and a second region arranged in the hollow portion of the needle portion so that additional cutting of the lifting thread is not required, and the shape of the lifting thread is fixed so that the second region maintains an inverted U-shape in the hollow portion of the needle portion, so that the lifting thread does not expand or loosen within the body tissue, thereby reducing the possibility of causing pain, thereby providing comfort to the patient, and by maintaining the original shape as is, the volume effect can be further maximized when injecting into a wrinkled or sunken area requiring volume.

[0012] Figures 1a to 1e are diagrams showing various types of yarn.

[0013] Fig. 2a is a photograph showing an actual product of a lifting member for forming, and Fig. 2b is a perspective view showing the lifting member for forming.

[0014] Figure 3 is a cross-sectional view taken along line AA of Figure 2b.

[0015] Figure 4 is a process diagram for explaining a method for manufacturing a lifting member for molding.

[0016] Figure 5 is a schematic diagram showing a step-by-step method for manufacturing a lifting member for molding.

[0017] Hereinafter, embodiments of the present invention are described in detail. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided solely to ensure complete disclosure of the present invention and to more fully inform those skilled in the art of the present invention.

[0018] When an element is referred to as being positioned "above" or "below" another element in this specification, this includes both the meaning that the element is positioned directly "above" or "below" the other element, or that additional elements may be interposed between them. In this specification, the terms "upper" and "lower" are relative concepts established from the viewpoint of the observer, and if the viewpoint of the observer changes, "upper" may mean "lower" and "lower" may mean "upper."

[0019] In multiple drawings, the same reference numerals denote substantially the same elements. In addition, terms such as "include" or "have" should be understood to indicate the presence of a described feature, number, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0020] In describing embodiments of the present invention, terms are defined in consideration of their functions in the embodiments of the present invention, and may vary depending on the intent or custom of the user or operator. Therefore, their definitions should be based on the contents throughout this specification.

[0021]

[0022] Hereinafter, a lifting member for forming according to one embodiment of the present invention will be described in detail with reference to the drawings.

[0023] Referring to FIGS. 2a, 2b and 3, a lifting member for molding according to one embodiment of the present invention includes a needle portion (10) and a lifting thread (20).

[0024] The needle portion (10) is for inserting a lifting thread (20) to be described later into the lower layer of the skin by perforating the skin. The tip is formed with a sharp structure so that it can be inserted into the skin, both ends have openings (12), and a hollow space (11) can be formed along the length direction. The needle portion (10) can be formed of one or more materials selected from among stainless steel, aluminum, aluminum alloy, titanium, and titanium alloy.

[0025] The lifting thread (20) is inserted into the body where there is insufficient volume through the needle portion (10) to improve the volume of the skin and is inserted into the dermis layer, which is the layer below the skin, to induce collagen regeneration and provide elasticity to the skin. The second region (21) of the lifting thread (20) is arranged in the hollow of the needle portion (10) and the first region (22) can be wound around the outer circumference of the needle portion (10). Here, the second region (21) and the first region (22) are preferably the same in length and can be formed of the same or different materials. Accordingly, it is possible to insert both into the dermis layer, which is the layer below the skin, and there is no need to additionally remove or cut the guide thread, thereby promoting convenience of the procedure.

[0026] The second region (21) is intended to prevent the product from being crushed within the body tissue and to maintain the volume effect for a longer period of time. It is preferable that one side (21-2) and the other side (21-3) of the lifting room (20) are folded so as to be adjacent to each other and form a double line, but one side (21-2) and the other side (21-3) are spaced apart from each other by a predetermined distance so as to maintain the volume. For example, one side (21-2) and the other side (21-3) may be spaced apart from each other by a predetermined distance.

[0027] A bending portion (21-1) may be formed in the folding portion (21-1), and one side (21-2) and the other side (21-3) may be formed to extend from the bending portion (21-1) toward the opening (12), and the lengths of the one side (21-2) and the other side (21-3) with respect to the bending portion (21-1) may be the same or similar to each other. For example, it is preferable that the bending portion (21-1) be located above the fixing portion (30) described below.

[0028] Although not shown in the drawing, in order to prevent one side (21-2) and the other side (21-3) of the second region (21) from being unnecessarily gathered or stuck to each other and crushed due to the pressure of body tissue, one or more bridges may be formed between the one side (21-2) and the other side (21-3). Such a bridge may serve to physically assist in preventing the one side (21-2) and the other side (21-3) from being easily gathered by external force and in allowing the second region (21) to maintain a U-shape, and may be formed of the same material as the second region (21). The bridge may be formed to have a width equal to or greater than that of the second region (21), and may also be formed of a mesh structure. When two bridges are formed, the bridge located adjacent to the bent portion (21-1) may be formed to have a greater width.

[0029] In addition, although not shown in the drawing, protrusions may be formed on one side (21-2) and the other side (21-3) adjacent to the bent portion (21-1) of the second region (21). The protrusions may serve to maintain or preserve the shape of the bent portion (21-1) by quickly dispersing the external force concentrated on the bent portion (21-1) to one side (21-2) and the other side (21-3). These protrusions may be formed from the same material as the second region (21), and may be formed by applying a known technique such as coating and drying.

[0030] The first region (22) is formed by winding two threads, so it does not need to expand within the body tissue, and thus it provides comfort to the patient and may have less of a foreign body sensation. The second region (21) and the first region (22) described above have their shapes fixed through a heat treatment process, so they do not expand or loosen within the body tissue compared to the conventional ones, and thus are less likely to cause pain, and thus not only provide comfort to the patient, but also maintain their original shape without flattening, so that the volume effect can be further maximized when injected into wrinkled and sunken areas that require volume.

[0031] For example, in the present embodiment, the lifting thread (20) can use a material that can be safely decomposed without causing an allergic reaction in the body, and for example, one or more selected from polydioxanone (PDO), poly L lactic acid (PLLA), and polycaprolactone (PCL) can be used. The lifting thread (20) shows a volume improvement effect on the skin after the procedure, and the lifting thread (20) injected into the skin dissolves after a certain period of time and collagen is produced in that place to help skin regeneration, so it can achieve not only a lifting effect but also a skin improvement effect. Depending on the material of the lifting thread (20), the increase in skin elasticity can be maintained for several months or years. If the effect is to be maintained for a long time, it is preferable to use polycaprolactone (PCL), which has a relatively long maintenance period.

[0032] Meanwhile, similar third-party products often cause pain to patients by fixing the lifting thread by tying a knot, which causes changes in the width of the thread, and frequently cause problems such as the lifting thread getting caught in the body tissue and the knot coming loose during the procedure when the operator uses both hands to push the needle into the body tissue using a hub.

[0033] Accordingly, in this embodiment, a fixing part (30) is provided to fix the lifting thread (20) to one area of ​​the outer circumferential surface of the needle part (10) without a separate knot, and one end and the other end of the lifting thread (20) are each fixed by inserting them into the fixing part (30), thereby preventing the lifting thread (20) from loosening.

[0034] To explain the operating state of the fixing part (30), the fixing part (30) fixes one end and the other end of the lifting thread (20) to the outer surface of the needle part (10), and when the needle part (10) is inserted into the body tissue, it moves to the tip of the needle part (10) together with the lifting thread (10) to guide the insertion of the lifting thread (20), and when the needle part (10) is retracted and removed from the body tissue, it can be removed together with the needle part (10).

[0035] Since the diameter of the lifting room (20) is not unnecessarily increased by the fixing member (30), comfort can be provided to the patient during the procedure.

[0036] For example, it is preferable that the fixing part (30) be provided at a position 1 / 2 to 2 / 3 of the needle part (10) so that it can guide the lifting thread (20) without being inserted into body tissue, and may be made of silicone, sponge, or a mixture thereof, but its use is not significantly limited as long as it is a material that is soft and / or elastic.

[0037]

[0038] Hereinafter, a method for manufacturing a lifting member for molding according to another embodiment of the present invention will be described in detail with reference to the drawings. Since the lifting member for molding has been described in detail above, any overlapping details will be omitted.

[0039] Referring to FIGS. 4 and 5, first, a guide thread (1) is positioned in the hollow space (11) of the needle portion (10) (S10).

[0040] The guide thread (1) can be positioned in the hollow (11) of the needle part (1) to maintain a ∩ shape (inverted U shape), but the upper part can be provided so that it is exposed to the opening (12).

[0041] In this embodiment, the guide thread (1) serves to guide the lifting thread (20) described below into the hollow space (11), and can be formed of the same or different material as the lifting thread (20). For example, it is preferable to form it of a material having greater strength than the lifting thread (20) so that it is not easily broken by force.

[0042] Since these guide threads (1) are not inserted into body tissues and are only used and removed during the manufacturing process, their use is not significantly restricted as long as they are made of a material that can secure strength, but for example, one or more selected from among polyethylene (PE), polypropylene (PP), nylon, and polyurethane (PU) can be used.

[0043]

[0044] Then, one end of the lifting thread (20) is passed through the exposed portion (1-3) of the guide thread (1), and then one side (21-2) and the other side (21-3) are overlapped and wound around the outer surface of the needle portion (10) to form the first region (22) of the lifting thread (20) (S20).

[0045] After one end (1-1) of the lifting thread (20) is passed through the exposed portion (1-3) of the guide thread (1) located in the above step S10, the curved portion (21-1) of the lifting thread (20) is caught on the exposed portion (1-3), and then the lengths of one side (21-2) and the other side (21-3) are adjusted to be the same and overlapped to form a first region (22) by winding the outer surface of the needle portion (10) in a spiral shape.

[0046] One end and the other end of the lifting thread (20) that has been wound can be fitted into a fixing member (30) to prevent loosening.

[0047] The exposed portion (1-3) of the guide thread (1) can act as a ring to tightly fix the curved portion (21-1) of the lifting thread (20).

[0048]

[0049] After that, one end (1-1) and the other end (1-2) of the guide thread (1) are pulled together to form a second area (21) of the lifting thread (20) in the hollow (11) of the needle part (10) (S30).

[0050] By pulling one end (1-1) and the other end (1-2) of the guide thread (1) together with the same force, the curved part (21-1) of the lifting thread (20) caught on the exposed part (1-3) in the step S20 can be moved toward the hollow (11) and positioned in the hollow (11). It is preferable that the curved part (21-1) be positioned above the fixed part (30). This is because when the needle part (10) is inserted into the body tissue, the fixed part (30) is positioned outside the body tissue. Therefore, if the curved part (21-1) is positioned below the fixed part (30), when the needle part (10) is inserted and then withdrawn to be removed from the body tissue, the curved part (21-1) may be positioned outside the body, requiring a cutting operation.

[0051] Meanwhile, the guide thread (1) includes a scale section (1-4), which allows the bend section (21-1) to be moved more easily and quickly to a desired position within the hollow section (11) of the needle section (10), thereby shortening the manufacturing time.

[0052]

[0053] Then, one end (1-1) or the other end (1-2) of the guide thread (1) is pulled to remove the guide thread (1) from the needle part (10) (S40).

[0054] The guide thread (1) can be removed from the needle portion (10), specifically, the bent portion (21-1) of the lifting thread (20), by pulling one end (1-1) or the other end (1-2) of the guide thread (1).

[0055]

[0056] Additionally, the needle part (10) from which the guide thread (1) has been removed is heat-treated (S50).

[0057] In the above step S40, the needle portion (10) from which the guide thread (1) has been removed may be heat-treated so that the shape of the lifting thread (20) is fixed to the needle portion (10). Accordingly, when the needle portion (10) is removed after insertion into body tissue, the tendency of the lifting thread (20) to unfold is reduced, thereby reducing the possibility of causing pain, thereby providing comfort to the patient and reducing the sensation of a foreign body in the body.

[0058]

[0059] As described above, the specific description of the present invention has been made by way of embodiments with reference to the attached drawings, but the above-described embodiments have only been described as preferred examples of the present invention, and therefore, the present invention should not be understood as being limited to the above-described embodiments, and the scope of the rights of the present invention should be understood by the claims described below and their equivalent concepts.

[0060] For example, the drawings are schematically illustrated with each component as the subject to aid understanding, and the thickness, length, number, etc. of each component depicted may differ from the actual figure due to the progress of drawing. In addition, the material, shape, dimensions, etc. of each component illustrated in the above embodiments are only examples and are not particularly limited, and various changes may be made without substantially deviating from the effects of the present invention.

[0061]

[0062] Description of the symbol

[0063] 1: Guide room

[0064] 1-1: First of all

[0065] 1-2: Other end

[0066] 1-3: Exposed areas

[0067] 1-4: Scale

[0068] 10: Needle part

[0069] 11: China

[0070] 12: Opening

[0071] 20: Lifting room

[0072] 21: Second Area

[0073] 21-1: Bend

[0074] 21-2: One side

[0075] 21-3: Other side

[0076] 22: Area 1

[0077] 30: Fixed part

Claims

1. A needle part with open ends and a hollow space formed along the length; and A lifting thread formed by folding one side and the other side so that they are adjacent to each other to form a double line, and consisting of a first region wound on the outer surface of the needle part and a second region arranged in the hollow of the needle part; A lifting member for forming, comprising:

2. In paragraph 1, The outer peripheral surface area of ​​the above needle portion includes a fixing portion for fixing the lifting thread, A lifting member for forming, wherein a curved portion is formed in the above-mentioned folding portion, and the curved portion is positioned above the above-mentioned fixing portion.

3. In paragraph 1, The above lifting thread is a lifting member for forming, one end and the other end of which are each fixed to the above fixing part.

4. In paragraph 1, A lifting member for forming, wherein the first region and the second region are formed of the same material.

5. Step of positioning the guide thread in the hollow part of the needle; A step of forming a first region of the lifting thread by passing one end of the lifting thread through the exposed portion of the guide thread, overlapping one side and the other side of the lifting thread and winding it around the outer surface of the needle portion; A step of pulling one end and the other end of the guide thread to form a second region of the lifting thread in the hollow of the needle portion; and A step of removing the guide thread from the needle portion by pulling one end or the other end of the guide thread; A method for manufacturing a lifting member for molding, comprising:

6. In paragraph 5, A method for manufacturing a lifting member for molding, wherein the above guide thread includes a scale part.

7. In paragraph 5, A method for manufacturing a molding lifting member, wherein the guide thread is formed of a material different from the lifting thread, and the guide thread is made of at least one selected from polyethylene, polypropylene, nylon, and polyurethane.

8. In paragraph 5, A method for manufacturing a lifting member for molding, further comprising the step of heat-treating the needle portion from which the guide thread has been removed after removing the guide thread from the needle portion.

Images