Thread inserter

WO2026177381A1PCT designated stage Publication Date: 2026-08-27KIM KI WON
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Patent Information

Application Number
PCT/KR2026/000916
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-02-18
Filing Date
2026-01-15
Publication Date
2026-08-27

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Abstract

The present invention relates to a thread inserter and, more specifically, to a thread inserter in which a thread, which is inserted into the human body and is retained to increase the elasticity of skin and improve wrinkles, and an injection needle for guiding the thread into the human body are combined with each other. The thread inserter according to one embodiment of the present invention comprises: an insertion needle extending in the longitudinal direction, having a hole opened from the inside thereof to the front end thereof, and having a handle at the rear end thereof; a guide thread having respective ends inserted into the hole at the front end of the insertion needle, and having a middle portion bent outside the hole to form an arc-shaped thread hanging part; an embedding thread connected to the thread hanging part of the guide thread and extending along the longitudinal direction outside the insertion needle; and a winding thread tightly wound around the outer circumferential surface of the insertion needle in a coil shape along the longitudinal direction thereof. The guide thread, the embedding thread, and the winding thread formed on the insertion needle are inserted into the human body together with the insertion needle, after which the insertion needle is withdrawn from the body, and the guide thread, the embedding thread, and the winding thread are retained in the body.
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Description

thread inserter

[0001] The present invention relates to a thread insertion device, and more specifically, to a thread insertion device combined with a thread that can be inserted into the human body to remain therein to increase skin elasticity and improve wrinkles, and a needle that guides the thread into the human body.

[0002] Generally, a thread inserter is a cosmetic procedure tool in which a hole with a diameter large enough to allow thread insertion is formed inside a long, thin needle, and a thread (typically PDO (Polydioxanone), PLLA (Poly L-Lactic Acid), PCL (Polycaprolactone), etc.) formed along the hole or the outer surface of the needle is inserted into the human body along with the needle, after which the needle is withdrawn and only the thread remains inside the body, thereby stimulating skin tissue and inducing collagen production to improve skin elasticity and remove wrinkles.

[0003] The thread used in conventional thread inserters had a single shape, such as being formed as a long extension along the needle extension direction from the outside of the insertion needle, or being wound in a coil shape along the outer surface of the insertion needle.

[0004] The present invention aims to increase skin elasticity and improve wrinkles in a natural form by forming a thread inserted into the human body smoothly without abrupt changes in thickness, allowing it to remain in the body.

[0005] However, the technical problems that the present invention aims to solve are not limited to those described above, and other unmentioned problems will be clearly understood by those skilled in the art from the description of the invention below.

[0006] A thread inserter according to one embodiment of the present invention comprises: an insertion needle extending in the longitudinal direction, forming a hole open from the inside to the tip, and having a handle at the rear end; a guide thread in which a portion is inserted into the hole at the tip of the insertion needle and another portion forms an arc-shaped thread hook outside the hole; a buried thread connected to the thread hook of the guide thread and extending along the longitudinal direction outside the insertion needle; and a winding thread wound in a coil shape along the longitudinal direction and in close contact with the outer surface of the insertion needle.

[0007] Preferably, the above-mentioned embedment chamber is arranged to extend outward from the front or rear end of the above-mentioned winding chamber.

[0008] Preferably, the insertion needle is formed to be movable internally and further includes a slider that supports the winding thread and is formed so that a portion thereof is inserted into the human body together with the insertion needle.

[0009] Preferably, the above-mentioned embedding chamber is composed of a plurality of such chambers and is formed to surround part or all of the circumferential direction of the above-mentioned winding chamber.

[0010] Preferably, it further includes a first fixing part formed at the rear end of the winding thread wound on the outer surface of the insertion needle to prevent the winding thread from unwinding, or a second fixing part formed at the front end of the winding thread wound on the outer surface of the insertion needle to prevent the winding thread from unwinding.

[0011] Preferably, it further includes a fixing ring that is fitted at one or more of the following locations: the thread holder, the space between the thread holder and the leading end of the buried thread, the leading end of the buried thread, the leading end of the winding thread, the central part of the winding thread, the rear end of the winding thread, or the rear end of the buried thread, and fixes the buried thread and the winding thread so as not to detach from the insertion needle.

[0012] Preferably, the above-mentioned burial chamber is formed by winding in the same direction or opposite direction to the winding direction of the above-mentioned winding chamber.

[0013] Preferably, one or more ends of the above-mentioned embedment chamber are formed at different distances from the rear end of the above-mentioned winding chamber.

[0014] Preferably, the second length from the rear end of the winding thread to the rear end of the embedded thread is formed to be longer than the first length from the front end of the embedded thread hung on the thread holder to the front end of the winding thread.

[0015] Preferably, the winding thread is formed at a predetermined distance from the thread hanger.

[0016] According to an embodiment of the present invention, there is an advantage in reducing the time and cost of the procedure by using a thread inserter formed so that the winding thread is wrapped by the embedded thread.

[0017] In addition, when the coiled and embedded threads remain in the body, the central part of the coiled thread can effectively stimulate skin tissue as the embedded thread is positioned together with it, and at the outer ends of the coiled thread, the curvature is gently formed by the embedded thread, which can mitigate the abrupt thickness variation at the point where the coiled thread ends, thereby offering the advantage of achieving a natural treatment effect.

[0018] In addition, various other additional effects may be achieved by various embodiments of the present invention. These various effects of the present invention are described in detail in each embodiment, or the description of effects that are easily understood by those skilled in the art is omitted.

[0019] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0020] FIG. 1 is a perspective view of a thread insertion device according to one embodiment of the present invention.

[0021] FIG. 2 is a schematic diagram of a thread insertion device according to one embodiment of the present invention.

[0022] FIG. 3 is a detailed view of the embedded thread and the winding thread formed on the outer surface of the insertion needle in a thread insertion device according to one embodiment of the present invention.

[0023] FIG. 4 is an enlarged view of a state in which a fixing ring is formed in a thread insertion device according to one embodiment of the present invention.

[0024] FIG. 5 is a diagram illustrating the positional relationship between the buried thread and the winding thread in a thread insertion device according to one embodiment of the present invention.

[0025] FIG. 6 is a diagram illustrating a procedure in a thread insertion device according to one embodiment of the present invention.

[0026] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0027] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0028]

[0029] FIG. 1 is a perspective view of a thread inserter according to one embodiment of the present invention, FIG. 2 is a schematic diagram of a thread inserter, and FIG. 3 shows a detailed view of a buried thread and a winding thread formed on the outer surface of an insertion needle.

[0030] A thread inserter according to one embodiment of the present invention comprises: an insertion needle (100) that extends in the longitudinal direction and forms a hole (110) open from the inside to the tip, and is provided with a handle at the rear end; a guide thread (200) in which both ends are inserted into the hole (110) at the tip of the insertion needle (100), and the middle portion is bent outside the hole (110) to form an arc-shaped thread hook (210); a buried thread (300) connected to the thread hook (210) of the guide thread (200) and extending along the longitudinal direction from the outside of the insertion needle (100); and a winding thread (400) wound in a coil shape along the longitudinal direction on the outer surface of the insertion needle (100) and in close contact with the outer surface of the insertion needle (100). The induction chamber (200), the embedding chamber (300), and the winding chamber (400) formed in the insertion needle (100) are inserted into the human body together with the insertion needle (100), and then the insertion needle (100) is removed from the body, and the induction chamber (200), the embedding chamber (300), and the winding chamber (400) remain in the body.

[0031] The insertion needle (100) is formed in a tubular shape with a predetermined diameter and extends along the longitudinal direction, having a hole (110) formed inside, and the hole (110) is formed to penetrate the inside of the insertion needle (100) and open up to the tip of the insertion needle (100). The hole (110) of the insertion needle (100) is preferably sized to allow two or more of the induction threads (200) to be inserted. The tip of the insertion needle (100) may have a sharp tip formed by forming an inclined surface slanted from one side of the outer surface toward the other, thereby facilitating insertion into the human body. However, it is not limited to this, and the tip of the insertion needle (100) may have a gentle curved shape and be open upward to communicate with the hole (110), allowing insertion into the human body and minimizing the destruction of nerves or tissues during insertion.

[0032] A handle (500) having an outer diameter larger than that of the insertion needle (100) and having a certain surface area secured so that the operator can grip it may be attached to the rear end of the insertion needle (100). The handle (500) may be made of a non-slip material, and it is desirable that the connection with the insertion needle (100) be secure.

[0033] The above-mentioned induction chamber (200), embedding chamber (300), and winding chamber (400) may be made of absorbable materials such as PDO (Polydioxanone), PLLA (Poly L-Lactic Acid), and PCL (Polycaprolactone) that are absorbed into the body after a certain period of time following the procedure.

[0034] The above-mentioned guide thread (200) is provided such that a portion thereof is inserted into the hole (110) of the insertion needle (100) and extends to a portion of the tip of the outer surface of the insertion needle (100), and another portion thereof is exposed outside the hole (110) of the insertion needle (100). In order to be connected to the above-mentioned buried thread (300), both ends of the guide thread (200) are inserted into the hole (110) of the insertion needle (100) to a predetermined length and are positioned, and the guide thread bends in the middle portion of the guide thread (200) to form an arc-shaped thread holder (210). The thread holder (210) may be formed as a part of the guide thread (200), but is not limited thereto, and may be formed by combining a separate thread or a separate member for connecting the buried thread (300) to the guide thread (200). It is preferable that the above-mentioned guide thread (200) is bent backward from the tip of the insertion needle (100) and extends outside the insertion needle (100) to form a thread hook portion (210).

[0035] The above-mentioned embedded thread (300) is formed such that a portion is connected to the thread holder (210) and extends along the longitudinal direction of the insertion needle (100) from the outside of the insertion needle (100). Similar to the guiding thread (200), the embedded thread (300) is connected to the thread holder (210) in the middle portion to form a bent state, and both ends of the embedded thread (300) may be extended toward the rear end of the insertion needle (100). The embedded thread (300) is inserted into the human body together with the insertion needle (100), after which the insertion needle (100) is removed and the embedded thread (300) remains in the body, inducing the skin to swell, thereby improving skin elasticity and removing wrinkles. In particular, even a single embedded thread (300) that is attached to the thread holder (210) can be used to increase the lifting effect by extending a pair of threads along the length direction and inserting them into the human body together with the insertion needle (100) and then remaining therein.

[0036] The above-mentioned winding thread (400) is formed by being wound in a coil shape along the longitudinal direction of the insertion needle (100) on the outer surface of the insertion needle (100) and closely attached to the outer surface of the insertion needle (100). The above-mentioned winding thread (400) can be extended and formed in a form that is wound very tightly without gaps along the circumferential direction of the outer surface of the insertion needle (100). The shape of the winding thread (400) inserted into the body can be determined according to the density of the winding thread (400) being wound or the total volume determined by the inner diameter of the winding thread (400) determined by the outer diameter of the insertion needle (100), and the shape of the winding thread (400) can be applied differently depending on the degree to which it is desired to swell in a body part.

[0037] Preferably, the embedded threads (300) hanging on the thread holder (210) of the induction thread (200) may be formed in multiple numbers to surround part or all of the winding thread (400). Multiple embedded threads (300) may be extended and hung together on a single thread holder (210) formed outside the hole (110) of the insertion needle (100). As multiple embedded threads (300) hang on the thread holder (210), the embedded threads (300) may be positioned sequentially from the center of the thread holder (210) toward the side, and accordingly, the area where the embedded threads (300) surround the winding thread (400) is increased, and when a certain number of embedded threads (300) are formed, they may be distributed and formed to surround the entire area of ​​the winding thread (400). One or more ends of the above-mentioned buried chamber (300) may be formed at different lengths from the rear end of the above-mentioned winding chamber (400), with some being longer (D2) and some being shorter (D3). In other words, the buried chamber (300) may be formed with the same length, but is not limited thereto, and some parts of the buried chamber (300) may be formed longer or shorter than other buried chambers (300). By being formed in this way, the ends of the buried chamber (300) may be formed in a shape where the bundle gradually becomes smaller.

[0038] The aforementioned induction thread (200), embedding thread (300), and winding thread (400) are inserted into the human body together with the insertion needle (100), and thereafter, only the insertion needle (100) is removed, leaving the induction thread (200), embedding thread (300), and winding thread (400) in the body. The remaining threads stimulate skin tissue within the skin and induce collagen production, thereby improving skin elasticity, and these threads are gradually absorbed into the body and disappear.

[0039] The embedded thread (300) and the coiled thread (400) inserted through the above-mentioned insertion needle (100) are mainly inserted into the SMAS (superficial muscular aponeurotic system) layer (fascial layer) located beneath the skin on the face. The coiled thread (400) has the advantage of being able to form elastic skin volume through tissue regeneration by secreting regenerative substances such as collagen, and the embedded thread (300) has the advantage of being able to strongly attach muscles and ligaments to the bone by promoting the internal growth of surrounding tissues contained within the SMAS layer.

[0040] In conventional thread insertion devices, the embedded thread used is made of a single thread, and since multiple procedures are performed to insert multiple threads, the procedure time is prolonged. Additionally, to obtain the procedure effect, there is the inconvenience of having to perform the procedure separately with a thread inserter in which the embedded thread is formed and a thread inserter in which the wound thread is formed. However, the present invention enables the procedure effect to be obtained in a single procedure by using a thread inserter in which multiple embedded threads (300) and wound threads (400) are formed together.

[0041] In particular, when a plurality of embedded threads (300) are formed to surround a coiled thread (400) and remain in the body after being inserted together with an insertion needle (100), the plurality of embedded threads (300) surrounding the coiled thread (400) can cause the skin to swell together, thereby improving the lifting effect. In particular, the embedded threads (300) and the coiled thread (400) remain together at the treatment site, increasing the degree of swelling and significantly enhancing the effect of improving elasticity.

[0042] FIG. 5 is a diagram illustrating the positional relationship between the buried chamber and the winding chamber in a thread insertion device according to one embodiment of the present invention.

[0043] The above winding thread (400) can be formed at a predetermined distance from the thread holder (210) of the above induction thread (200). Thus, when the thread inserter is inserted into the human body, the winding thread (400) and the thread holder (210) do not overlap, and the embedded thread (300) connected to the thread holder (210) is inserted into the human body first, followed by the winding thread (400) and the embedded thread (300) surrounding it being inserted together into the human body, thereby enabling the procedure to be performed through natural insertion during the procedure.

[0044] Preferably, the leading end of the winding thread (400) is positioned at a rear distance (D1) from the leading end of the embedded thread (300) connected to the thread holder (210), and the trailing end of the winding thread (400) is positioned at a front distance (D2) from the trailing end of the embedded thread (300). When the induction thread (200), embedded thread (300), and winding thread (400) formed in this way are inserted into the human body together with the insertion needle (100) and remain in the body, the area where the winding thread (400) and the embedded thread (300) overlap forms a sufficient space in the body, causing the skin to swell sufficiently and providing excellent effects such as wrinkle improvement, and only the embedded thread (300) is positioned on the outer sides of both ends of the winding thread (400), thereby forming a gentle swelling of the skin and providing effects such as natural wrinkle improvement. When only the above-mentioned coil (400) is embedded in the body, there is a drastic difference in the skin swelling effect at both ends of the coil (400), and the ends of the coil (400) are sloped in a stepped shape, so a foreign body sensation may be felt from the outside. However, as in one embodiment of the present invention, the embedded coil (300) is distributed outside the area of ​​the coil (400), so the boundary is formed in a natural curved shape, and as a result, a more natural skin swelling or wrinkle improvement effect can be obtained, and the foreign body sensation from the outside can be alleviated.

[0045] The shape in which the above-mentioned winding chamber (400) and the embedded chamber (300) formed to surround the winding chamber (400) remain in the body may vary depending on their positional relationship. In one embodiment, when the winding chamber (400) is positioned densely at the tip of the embedded chamber (300), the winding chamber (400) may remain in the body protruding forward from the embedded chamber (300) due to the insertion needle coming out or friction when it remains in the body after insertion together with the insertion needle (100). In this case, when the area of ​​the winding chamber (400) having a predetermined volume swells up in the body, the patient may experience pain in the tip area of ​​the winding chamber (400). Conversely, if the winding chamber (400) is concentrated at the rear end of the burial chamber (300), the winding chamber (400) may remain protruding further back than the burial chamber (300), and the patient may suffer pain in the rear end area of ​​the winding chamber (400).

[0046] Accordingly, it is preferable that the above-mentioned winding thread (400) be positioned in the central part of the entire longitudinal direction of the buried thread (300), but it can be selectively positioned depending on the expected effect of the procedure. The leading end of the above-mentioned winding thread (400) is positioned behind the part connected to the thread holder (210) forming the leading end of the above-mentioned buried thread (300), and the rear end of the above-mentioned winding thread (400) is positioned in front of the rear end of the buried thread (300). In this way, the positional relationship between the winding thread (400) formed on the initial insertion needle (100) and the buried thread (300) is established, and when only the insertion needle (100) is removed after insertion into the body, the winding thread (400) remains in the body while positioned in the center of the longitudinal direction of the buried thread (300).

[0047] In one embodiment, the area near the nose, such as the nasolabial folds, has a deep groove, while the area near the corner of the mouth has a shallow groove. Considering these skin characteristics, in order to further inflate the skin at the location near the nose where the groove is deep, the winding thread (400) is positioned so that it is located close to the leading edge of the entire longitudinal direction of the embedding thread (300), so that the corresponding part is located at the area near the nose and the embedding thread (300) is positioned only at the relatively opposite side where the groove is shallow.

[0048] Preferably, the second length (D2) from the rear end of the winding thread (400) to the rear end of the buried thread (300) can be formed to be longer than the first length (D1) from the front end of the buried thread (300) hung on the thread hanger (210) to the front end of the winding thread (400).

[0049] Here, the first length (D1) can be defined as the length from the leading end of the buried chamber (300) to the first fixed part (410) forming the leading end of the winding chamber, and the second length (D2) can be defined as the length from the trailing end of the buried chamber (300) to the second fixed part (420) forming the trailing end of the winding chamber (400).

[0050] When the above-mentioned winding thread (400) is inserted into the human body by the insertion needle (100) together with the embedded thread (300), the thread may be pushed backward due to friction with the skin tissue, and in particular, the winding thread (400) surrounded by the embedded thread (300) may be pushed backward together with the embedded thread (300). Although the rear end can be supported by the slider (600) to prevent it from being pushed backward, the position of the front end cannot be prevented from being pushed by the pushing force, so it is necessary to adjust the winding thread (400) so that it remains in the body even if pushed, positioned at the center of the longitudinal direction of the embedded thread (300).

[0051] Accordingly, if the first length (D1) is formed to be shorter than the second length (D2), the winding thread (400) is gradually pushed out when the insertion needle (100) is inserted into the human body, causing the first length (D1) to gradually become longer, and the second length (D2) remaining in the body becomes equal to the first length (D1), thereby positioning the winding thread (400) at the longitudinal center of the buried thread (300) to achieve the aforementioned pain relief effect.

[0052] Preferably, it may further include a first fixing part (410) formed at the rear end of the winding thread (400) wound on the outer surface of the insertion needle (100) to prevent the winding thread (400) from unwinding, or a second fixing part (420) formed at the front end of the winding thread (400) wound on the outer surface of the insertion needle (100) to prevent the winding thread (400) from unwinding.

[0053] The first fixing part (410) and the second fixing part (420) are configured to prevent the winding thread (400) from unraveling while wound around the insertion needle (100). The winding thread (400) itself may be twisted one or more times at the end of the thread to form a knot, thereby being fixed so as not to unravel through the knot. However, this is not limited thereto, and the winding thread (400) may be fixed so that its front or rear end is in close contact with the insertion needle (100) through a separate fixing means, or its shape may be maintained in a state where the winding thread (400) itself is in close contact with the insertion needle (100) through heat treatment, etc. The first fixing part (410) and the second fixing part (420) can determine where the winding thread (400) is positioned in the longitudinal direction of the insertion needle (100), and accordingly, the positional relationship with the embedded thread (300) can be set more easily. In one embodiment, the second fixing part (420) is located at the rear end of the thread hanger part (210), and the first fixing part (410) may be located at the front end of the buried chamber (300) rather than the rear end.

[0054] Preferably, the insertion needle (100) is formed to be movable inside and may further include a slider (600) that is partially inserted into the human body together with the insertion needle (100) to support the induction chamber (200), the embedding chamber (300), and the winding chamber (400) so as not to be pushed out.

[0055] The above slider (600) is configured to be positioned at the rear end of the winding chamber (400) and the embedding chamber (300) and to move linearly so as to be slidable with respect to the insertion needle (100). The head portion (610) of the above slider (600) is an area that is inserted into the human body together with the insertion needle (100), and the head portion (610) of the above slider (600) may have a diameter smaller than that of the slider (600). The slider (600) is configured to ensure that when the insertion needle (100) is inserted into the human body, the rear end of the winding chamber (400), specifically the first fixing portion (410) of the winding chamber (400), is completely inserted into the body, and to prevent the winding chamber (400) from coming out together when the insertion needle (100) is removed.

[0056] FIG. 4 illustrates an enlarged view of a state in which a fixing ring is formed in a thread insertion device according to one embodiment of the present invention.

[0057] Preferably, the device may further include a fixing ring (120) that is fitted at one or more of the following locations: the thread holder (210), the thread holder (210) and the leading end of the embedded thread (300), the leading end of the embedded thread (300), the leading end of the winding thread (400), the central part of the winding thread (400), the rear end of the winding thread (400), or the end of the embedded thread (300), and fixes the embedded thread (300) and the winding thread (400) so that they do not detach from the insertion needle (100).

[0058] The above fixing ring (120) may be formed in a ring shape with a through hole formed therein through which an insertion needle (100) and other threads can pass. It is preferable that the insertion needle (100) and other threads be densely packed into the through hole to secure the insertion needle (100) so that multiple threads located on the insertion needle (100) do not detach. Normally, the fixing ring (120) is kept in a state of being worn at all times during storage or before the procedure. When performing the procedure, the fixing ring (120) is removed before the procedure is performed, or the procedure is performed with the fixing ring (120) in place. The fixing ring (120) is pushed backward from the insertion needle (100) while in close contact with the outer surface of the skin, allowing the insertion needle (100) to be inserted into the human body. It is preferable that the position where the above-mentioned fixing ring (120) is fitted be fixed at one or more of the first fixing part (410) or second fixing part (420) of the winding thread (400), or the thread hanger part (210) where the induction thread (200) and the buried thread (300) are interconnected.

[0059] Preferably, the embedding chamber (300) is wound together with the winding direction of the winding chamber (400) in the same direction or opposite direction, and can be inserted into the human body together with the insertion needle (100) and the winding chamber (400).

[0060] Multiple embedded threads (300) can be inserted into the human body, not only in a form formed by extending along the longitudinal direction but also having various shapes. In one embodiment, the embedded thread (300) hanging on the thread holder (210) can be wound in the same or opposite direction as the winding thread (400) on the outer surface of the winding thread (400), and then maintained in a wound state by a knot or a fixing ring (120). Subsequently, when the insertion needle (100) is inserted, if it is inserted and then removed while rotating it in the same direction as the winding direction of the embedded thread (300), the embedded thread (300) can remain in the body in a wound state. As the embedded thread (300) formed to wrap around part or all of the winding thread (400) is wound, a larger amount of embedded thread (300) may be required than when simply extending in the longitudinal direction, thereby increasing the degree of swelling of the skin.

[0061] Preferably, the buried chamber (300) may be wound together with the winding direction of the winding chamber (400) in the same direction or opposite direction in the area overlapping the front end of the winding chamber (400) or the area overlapping the rear end of the winding chamber (400). In another embodiment, the buried chamber (300) may be wound only around the first fixing part (410) forming the rear end of the winding chamber (400) or the second fixing part (420) forming the front end, rather than the entire area of ​​the buried chamber (300), thereby more effectively counteracting the pain caused when both ends of the winding chamber (400) swell up.

[0062]

[0063] As described above, although the present invention has been explained by limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various modifications and variations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below by those skilled in the art to which the present invention belongs.

[0064] - Explanation of the symbols

[0065] 100 : Insertion needle

[0066] 110 : hole

[0067] 120 : Fixing ring

[0068] 200 : Induction Room

[0069] 210 : Thread holder

[0070] 300 : Landfill

[0071] 400 : Winding Room

[0072] 410: 1st fixed part

[0073] 420 : 2nd Fixed Part

[0074] 500 : Handle

[0075] 600 : Slider

[0076] 610 : Head section

[0077] The present invention is applicable to thread insertion devices in the field of skin care that insert threads into the human body.

Claims

1. An insertion needle extending longitudinally, forming an open hole from the inside to the tip, and having a handle at the rear end; A guide thread, a portion of which is inserted into the hole at the tip of the insertion needle, and another portion of which forms an arc-shaped thread holder outside the hole; A buried thread connected to the thread holder portion of the above-mentioned induction chamber and extending along the longitudinal direction from the outside of the insertion needle; and A thread inserter comprising a winding thread wound in a coil shape along the longitudinal direction and in close contact with the outer surface of the insertion needle.

2. In Paragraph 1, A thread inserter characterized in that the above-mentioned buried chamber is arranged to extend outwardly to the front or rear end of the above-mentioned winding chamber.

3. In Paragraph 1, A thread inserter characterized by further including a slider that supports the winding thread, which is formed to allow the insertion needle to move internally and is formed so that a portion thereof is inserted into the human body together with the insertion needle.

4. In Paragraph 1, A thread inserter characterized in that the above-mentioned embedded chamber is formed in multiple numbers to surround part or all of the circumferential direction of the above-mentioned winding chamber.

5. In Paragraph 1, A thread inserter characterized by further including a first fixing part formed at the rear end of a winding thread wound on the outer surface of the insertion needle to prevent the winding thread from unwinding.

6. In Paragraph 1, A thread inserter characterized by further including a second fixing part formed at the tip of a winding thread wound on the outer surface of the insertion needle to prevent the winding thread from unwinding.

7. In Paragraph 1, A thread inserter characterized by further including a fixing ring that is fitted at one or more locations among the thread holder, the space between the thread holder and the leading end of the buried thread, the leading end of the buried thread, the leading end of the winding thread, the central part of the winding thread, the rear end of the winding thread, or the rear end of the buried thread, and fixes the buried thread and the winding thread so as not to detach from the insertion needle.

8. In Paragraph 4, A thread inserter characterized in that the above-mentioned embedded chamber is formed by winding in the same direction or opposite direction to the winding direction of the above-mentioned winding chamber.

9. In Paragraph 4, A thread inserter characterized in that one or more ends of the above-mentioned buried chamber are formed spaced apart from each other at different distances from the rear end of the above-mentioned winding chamber.

10. In Paragraph 2, A thread inserter characterized in that the second length from the rear end of the winding thread to the rear end of the buried thread is longer than the first length from the front end of the buried thread hanging on the thread holder to the front end of the winding thread.

11. In Paragraph 1, A thread inserter characterized in that the above-mentioned winding thread is formed at a predetermined distance from the above-mentioned thread hanger.