JP2020189103A - New sutural thread for face and body lifting - Google Patents

Abstract

To provide a new sutural thread for face and body lifting inhibiting barb or protrusion degradation before the lifted skin is fixed.SOLUTION: The present invention relates to a sutural thread for providing further efficient lift treatment, and provides a sutural thread for face and body lifting made of a polymer material with a plurality of conical protrusions or funnel-shaped protrusions formed on an outer peripheral surface of a main strand of the sutural thread. The protrusion has a stereostructure in the form of a cone, a polygonal cone, a truncated cone, a modified polygonal cone, a truncated polygonal cone, a modified truncated polygonal cone, cylinder, modified cylinder, polygonal cylinder, or modified polygonal cylinder, which is formed with formation of radial symmetrical structure around the main strand suture thread or has funnel shape, in which part or all of the space, with the exception of the outer peripheral surface of the stereo structure and the main part of the stereo stratum suture strand, which is present inside, is hollow, and the plurality of protrusions are located so that their tops are located opposite each other, with the center of the sutural thread defined as a reference.SELECTED DRAWING: Figure 1

Description

The present invention relates to sutures, specifically to sutures for facial and body lifts.

The suture is a thread used to sew the affected area together during surgery. Usually, sutures are made of a biodegradable or water-absorbing polymer material such as collagen or PLGA [poly (lactic-co-glycolic) acid] that is decomposed and absorbed by the skin after a certain period of time in the living body. And, those made of non-biodegradable polymer material that must be removed after treatment are classified, and recently, those made of biodegradable polymer material are more universally used due to biocompatibility and ease of treatment. ing. Furthermore, in the case of sutures made of such a biodegradable polymer material, recently, they have also been used for face lifting treatments that pull and stretch loose skin, and the sutures are inserted subcutaneously to insert the sutures into the skin. Sutures with barbs, knots or protrusions have been manufactured and used for fixation after pulling. In such a suture having a barb or a protruding structure, the predecessor of the injection-molded suture is a solid in the range of the glass transition temperature or more and the melting point or less of the bioabsorbable polymer constituting the predecessor. There are Republic of Korea Patent No. 1057376 regarding a method for producing a suture, which comprises heat-treating the stretched suture after stretching to a state, and Republic of Korea Patent No. 1455683 regarding a suture having cogs formed in both directions. .. However, although such barbs, knots or protrusions have some automated manufacturing equipment, they are mainly manually cut on the surface of the smooth suture to create a cog-like structure. The disadvantage is that the unit price is high because it is manufactured by the method of forming or tying a knot. Further, in the case of a suture made of a biodegradable polymer material in which a barb or a protrusion is formed as described above, the thickness of the barb or the protrusion portion is thinner than that of the main body of the suture. It has the disadvantage that the lift part is unraveled before the skin is fixed because the barb and protrusions are decomposed first before the main body is biodegraded by the skin tissue. ..

Therefore, we will develop more efficient facial and body lift sutures in which the lifted skin is biodegraded after being fixed and the barbs or protrusions that effectively act as lifts are retained for a longer period of time. The need has been raised.

Republic of Korea Patent No. 1057376 Republic of Korea Patent No. 1455683

An object of the present invention is to provide a novel facial and body lift suture in which the decomposition of barbs or protrusions is suppressed before the lifted skin is fixed.

Another object of the present invention is that the existing facial and body lift sutures break inside the tissue according to the movement of the facial muscles, and 1) the binding with the anchor point located at the end or the center is broken. The disadvantage is that the lift effect is reduced, 2) the loss of lift tension due to the conversion of the pulling vector (vector) that occurs when the thread does not enter straight, and 3) the cog that was in both directions due to the thread breaking. Comes to have directivity only in one direction, and is to improve the phenomenon of pushing out of the tissue.

It should be noted that an object of the present invention is that the speed at which the saw blade of the lift thread is absorbed is faster than the speed at which the suture is absorbed, which is a limit point generated by the small surface area of the existing saw tooth. The purpose of this is that the duration of the lift effect is short, and because there are few application sites, the surface area of the barb or protrusions with low tension is increased so that one barb or protrusions is effectively increased. It is to support the organization of.

According to one aspect of the present invention, a plurality of protrusions are facial and body lift sutures made of polymer or gold formed on the outer peripheral surface of the main thread of the suture, and the protrusions are the main thread of the suture. Conical shape, polygonal pyramid type, conical pyramid type, deformed polygonal pyramid type, polygonal pyramid type, deformed polygonal pyramid type, cylindrical shape, deformed cylindrical shape formed in a radial symmetric structure centered on , A polygonal pyramid type and a deformed polygonal pillar type three-dimensional structure, or a funnel shape in which a part or all of the space excluding the outer peripheral surface of the three-dimensional structure and the main thread portion of the suture thread inside is vacant. Provided are facial and body lift sutures in which the protrusions are arranged symmetrically with respect to the center of the suture so that the apex faces each other.

According to another embodiment of the present invention, a pair of protrusions or protrusion units is a facial and body lift suture thread made of polymer or gold formed on the outer peripheral surface of the main thread of the suture thread. The protrusions are a conical type, a polygonal pyramid type, a conical base type, a deformed polygonal pyramid type, a polygonal pyramid type, and a deformed polygonal pyramid type formed in a radial symmetrical structure around the main thread of the suture. , Cylindrical, Deformed Cylindrical, Polygonal and Deformed Polyramids, or Part or All of the Space Except for the Outer Surface and Internal Suture Thread Part of the Three-dimensional Structure Facial and body lift sutures having a funnel shape are provided.

In the face and body lift suture, the pair of protrusions or protrusion units are paired so that the lower surface or apex of the protrusions face each other, and one protrusion pair or protrusion unit simultaneously performs a lift function and an anchor function. It can be carried out.

Further, in the suture for facial and body lift according to the embodiment of the present invention, the protrusion unit has a symmetrical shape, that is, a pincushion-like shape in which the lower surfaces or vertices of the protrusions face each other as described above. Not only (−−> − ＜ −−) or pointed spear morphology (−− <−> −−), but also asymmetrical with more protrusions in one side (eg − << −> −. It can have the form of −, −− ＜ − <−> −−, −− >> − ＜ −, −−> −> <−−).

In the protrusion pair or one protrusion unit as described above, since the individual protrusion pair or the protrusion unit can act as one lift unit and simultaneously perform the role of a fixed body (anchor), a specific suture site is cut. Or even if it melts and disappears, it can still play the role of a lift.

The facial and body lift sutures according to one embodiment of the present invention are injection molded using a mold, a cutting process using a lathe, or variable extrusion molding using an extruder equipped with a variable nozzle, below melting point to glass transition temperature. It can be manufactured by heat-compression solid phase molding, which is molded under the above temperature conditions, but it is preferably manufactured by a variable cross-section extrusion step using a variable cross-section extruder equipped with a variable nozzle.

In the suture for facial and body lift according to the embodiment of the present invention, protrusions capable of fixing the skin tissue can be formed over the entire outer peripheral surface of the suture to a certain thickness or more, so that before the skin is fixed. Not only can it solve the problem that the barb or protrusion is decomposed and the lift effect is lost, but it can also apply tension to the entire skin tissue around the suture, thus exhibiting a more stable lift effect. be able to. Of course, the scope of the present invention is not limited to the above effects.

Further, in the suture for facial and body lift according to the embodiment of the present invention, the individual protrusions or protrusion units of the suture provide a lift effect and also serve as an anchoring point. The individual protrusions retain the lift effect even when the suture breaks, and the movement within the tissue can be minimized to provide a postoperative retention period and an increase in the treatment effect. Of course, the scope of the present invention is not limited to the above effects.

It is the schematic which shows briefly the structure of the suture for face and body lift by one Example of this invention. It is sectional drawing which shows the cross section of the suture for the face and body lift of FIG. It is a schematic diagram which shows simply the structure of the suture for face and body lift by another Example of FIG. 1 of this invention. It is the schematic which shows schematic structure of the suture for face and body lift by another Example of this invention. It is sectional drawing which shows the cross section of the suture for the face and body lift of FIG. It is the schematic which shows the structure of the suture which the protrusion was formed in both directions by another Example of this invention. It is a schematic diagram schematically showing the structure of the suture thread in which protrusions are formed in both directions according to another embodiment of the present invention. It is a schematic diagram which shows schematic structure of the suture by various examples of this invention. a shows a suture structure in which the funnel-shaped protrusions face each other and are in contact with each other, b shows a suture structure in which the conical protrusions face each other and touch each other, and c indicates a suture structure in which the funnel-shaped protrusions face each other in the structure a. A suture structure in which the thickness of the portion is thicker than the thickness of the main thread is shown, and d shows a suture structure in which the thickness of the portion where the conical protrusions are in contact with each other in the structure b is thicker than the thickness of the main thread. e indicates a suture structure in which the funnel-shaped projections facing each other are separated from each other at an appropriate distance rather than immediately in contact, and f indicates a conical projection facing each other at an appropriate distance rather than immediately in contact with each other. Shows the separated suture structure. FIG. 5 is a schematic view schematically showing a suture having a shape in which the lower surface 43 of the protrusion according to an embodiment of the present invention faces each other. FIG. 5 is a schematic view schematically showing a suture having a shape in which the lower surfaces 53 of the protrusions according to an embodiment of the present invention face each other and the connecting line of the lower surface 53 of the protrusions is thicker than the thickness of the main thread of the suture. FIG. 5 is a schematic view schematically showing a suture having a shape in which one protrusion 62b in a pair of protrusions facing each other and adjacent protrusions 62c are formed in the same direction according to an embodiment of the present invention. .. FIG. 5 is a schematic view schematically showing a suture having a shape in which any one of a pair of protrusions 72b facing the lower surface according to an embodiment of the present invention has a shape smaller than the facing protrusions 72a. It is a vertical cross-sectional view which shows the vertical cross section of the protrusion which had various outer shapes of the suture by one Example of this invention. It is a side view which looked at the protrusion which had various outer shape of the suture by one Example of this invention, centering on the suture. It is the schematic which shows schematicly the suture which reflected the deformation of various protrusions by one Example of this invention.

According to one aspect of the present invention, a plurality of protrusions are facial and body lift sutures made of polymer or gold formed on the outer peripheral surface of the main thread of the suture, and the protrusions are the main thread of the suture. Conical shape, polygonal pyramid type, conical pyramid type, deformed polygonal pyramid type, polygonal pyramid type, deformed polygonal pyramid type, cylindrical shape, deformed cylindrical shape formed in a radial symmetric structure centered on , A multi-column type and a deformed polygonal column-type three-dimensional structure, or a funnel shape in which a part or all of the space excluding the outer peripheral surface of the three-dimensional structure and the main thread portion of the suture thread inside is vacant. Provided are facial and body lift sutures in which the protrusions are arranged symmetrically with respect to the center of the suture so that the apex faces each other.

According to another embodiment of the present invention, a pair of protrusions or protrusion units is a facial and body lift suture thread made of polymer or gold formed on the outer peripheral surface of the main thread of the suture thread. The protrusions are a conical type, a polygonal pyramid type, a conical base type, a deformed polygonal pyramid type, a polygonal pyramid type, and a deformed polygonal pyramid type formed in a radial symmetrical structure around the main thread of the suture. , Cylindrical, Deformed Cylindrical, Polygonal and Deformed Polyramids, or Part or All of the Space Except for the Outer Surface and Internal Suture Thread Part of the Three-dimensional Structure Facial and body lift sutures having a funnel shape are provided.

In the face and body lift suture, the pair of protrusions or protrusion units are paired so that the lower surfaces or vertices of the protrusions face each other, so that one protrusion pair or protrusion unit is a lift function and an anchor. Functions can be performed at the same time.

In the facial and body lift sutures, the protrusion unit has a symmetrical shape, that is, a pincushion-like shape in which the lower surfaces or vertices of the protrusions face each other as described above (->-<---. ) Or the shape of a spear with a pointed end (-<<->-), as well as an asymmetrical shape with more protrusions in one side (eg-<<->-,-<-<-). It can have the form of> −−, −− >> − ＜ −, −−> −> ＜ −−).

In the face and body lift suture, the angle of the mother line of the protrusion is formed at an angle of 20 to 60 ° with respect to the central axis of the main thread of the suture, and the protrusion has a flat lower surface or the above. The shape may be recessed in the direction of the virtual apex of the protrusion. Similarly, if the outer wall of the protrusion and part or all of the interior of the suture, excluding the main thread portion, is open (in this case, for convenience, referred to as a "funnel-shaped protrusion"), the thickness of the outer wall of the funnel is It may be at least 30-90% of the suture body. At this time, the funnel-shaped protrusion can have a branched shape in which at least one or more radial grooves are formed.

In the facial and body lift sutures, the deformed polygonal pyramid type, the deformed polygonal pyramid base type, or the deformed polygonal prism type has a shape in which the side surface is not flat but is recessed or protrudes convexly. means. A deformed cylinder means a form in which the sides are not perfectly circular but have recessed grooves or convex protrusions.

In the facial and body lift sutures, the polymer may be a non-water-absorbent polymer or a water-absorbent polymer, and the non-water-absorbent polymer may be PET (polyethylene terephthalate), nylon, polyamide, PVDF (polyvine fluoride) or polypropylene. The water-absorbent polymer may be polydioxanone, a lactic acid (L-lactide) polymer (polylactic acid), a glycolic acid polymer (polyglycolic acid), or a combination of lactic acid and glycolic acid (Glycolide). It may be a polymer [poly (lactic-co-glycolic acid)] or a polydioxane, and the lactic acid (L-lactide), glycolic acid (Glycolide), or a copolymer thereof may be a caprolactone or a polymer thereof. It may be any one selected from the polymer selected from the trimethylene carbonate and the blended polymer, and can be produced with gold.

In the facial and body lift sutures, the pair of protrusions may be symmetrical with the vertices or lower surfaces of the protrusions facing each other.

In the face and body lift suture, the protrusion unit can be configured by alternately arranging a plurality of protrusions in one direction and a single or a plurality of protrusions in the opposite direction. In this case, the number of protrusions in one direction and the number of protrusions in the opposite direction may be symmetrical to each other, or the number of protrusions in one direction and the number of protrusions in the opposite direction may be asymmetrical. ..
Further, in the facial and body lift sutures, the protrusions or protrusion units can be formed in one or both directions, and the protrusions or protrusion units are paired so that the vertices or lower surfaces of the protrusions face each other. Can be done.

More specifically, the protrusion is formed in both directions so that the virtual vertices, which are the points where the extension lines of the generatrix meet inside the main thread of the suture, are directed toward both ends, or the virtual vertices are formed. Can be formed in both directions so that is directed towards the center.

Further, the protrusions are connected at both ends at an angle of 20 to 60 ° with respect to the central axis of the main thread, and the intermediate portion is on the same line as the main thread and has a circular cross section that is thicker than the thickness of the main thread. It may be in the form of a janggu or a modified janggu having a polygonal cross section.

In the facial and body lift sutures, the protrusions or protrusion units can be formed in one or both directions.

In the facial and body lift sutures, the lower surface of the protrusion may be circular, oval or polygonal, or a deformed polygon.

In the facial and body lift sutures, the size of the continuously arranged protrusions can be formed regularly or irregularly.

In the facial and body lift sutures, the morphology of the continuously arranged protrusions can be formed regularly or irregularly.

In the facial and body lift sutures, one or more cogs can be regularly or irregularly formed on the protrusions and / or the main threads of the sutures.

In the facial and body lift sutures, the vertices or lower surfaces of the protrusions or protrusion units may immediately face each other or be separated by a predetermined distance.

In the facial and body lift sutures, when the vertices or lower surfaces of the protrusions or protrusion units are separated, the connecting site between the vertices or the lower surface is the same thickness as the main thread of the suture or further. It may be thick.

In the facial and body lift sutures, when the vertices or lower surfaces of the protrusions or protrusion units are separated, the separated distances between the vertices or lower surfaces may be regular or irregular.

In the facial and body lift sutures, a single protrusion pair or unit of protrusions can act as an anchoring point.

In the facial and body lift sutures, the projection pairs or projection units can be arranged regularly or irregularly.

In the facial and body lift sutures, the projection pair or projection unit can have a number of other units in other forms of projection combination.

In the facial and body lift sutures, the protrusion pairs or protrusion units and cogs can be arranged regularly or irregularly.

The facial and body lift sutures according to one embodiment of the present invention are injection molded using a mold, a cutting process using a lathe, or variable extrusion molding using an extruder equipped with a variable nozzle, below melting point to glass transition temperature. It can be manufactured by heat-compression solid phase molding, which is molded under the above temperature conditions, but it is preferably manufactured by a variable cross-section extrusion step using a variable cross-section extruder equipped with a variable nozzle.

Hereinafter, examples of the present invention will be described with reference to drawings that schematically show ideal examples of the present invention. In the drawings, deformation of the illustrated shape can be expected, for example, due to manufacturing techniques and / or tolerance. Therefore, the examples of the ideas of the present invention should not be construed as being restricted to the specific shape of the region illustrated herein, and should include, for example, manufacturing-induced changes in shape.

Furthermore, in the attached drawings, the shape of the protrusion is basically shown as a conical protrusion or a cone-shaped funnel-shaped protrusion, but these protrusions are truncated cone-shaped, cylindrical, polygonal pyramid, or truncated cone. It may be replaced by a mold, and the morphology of these three-dimensional shapes can be variously transformed. Therefore, even if it is shown as a conical protrusion on the drawing to help the understanding of the present invention, it is simply referred to as a protrusion. I will do it.

FIG. 1 is a schematic view briefly showing the structure of a suture for facial and body lift according to an embodiment of the present invention.
As shown in FIG. 1, in the suture thread 10 according to the embodiment of the present invention, protrusions 12 are formed on the main thread 11 of the suture thread at predetermined intervals. The protrusion 12 is manufactured integrally with the main thread 11 of the suture at the time of manufacture, and various methods can be used to manufacture the suture 10. Such methods include injection molding using a mold and variable cross-section extrusion using a variable cross-section extruder that employs a variable nozzle. The suture according to one embodiment of the present invention can selectively be produced in the form of a good thick raw yarn and then cut using a lathe to form a conical protrusion. On the other hand, the fixed surface 13 corresponding to the lower surface of the cone may be a flat surface, or may be a curved surface in which the protrusion 12 selectively acts like a barb (not shown). ..

As used in this document, the term "main thread of suture" means the main body part of an elongated cylindrical suture with the protrusions removed. This is referred to for convenience in order to distinguish the structure of the suture of the present invention, and does not mean that the main thread and the protrusion of the suture are a separate type that is not integrated.

FIG. 2 is a cross-sectional view showing a cross section of the facial and body lift sutures of FIG. As shown in FIG. 2, the cut surface of the protruding portion has the form of a right triangle. At this time, the angle θ between the generatrix 14 of the conical protrusion and the central axis 15 of the main thread 11 of the suture is preferably 20 to 60 °, and if the angle is too large, the treatment workability is lowered and the protrusion is formed. There is a possibility that the suture becomes excessively thin and disappears before the main thread 11 of the suture, and if the angle is too small, the area of the surface fixed to the skin tissue becomes narrow and the fixing ability decreases. Further, the point where the extension line of the generatrix of the protrusion meets inside the main thread of the suture is referred to as a virtual apex 16.

FIG. 3 is a schematic view schematically showing the structure of the face and body lift suture thread 20 according to another embodiment of the present invention. As shown in FIG. 3, a polygonal pyramid-shaped protrusion can be generated instead of the conical protrusion of FIG. The polygonal pyramid has an n-sided lower surface 23 consisting of n vertices 22 and a line segment in which the ends of the bus lines are connected. In FIG. 3, a hexagonal pyramid is exemplified, but a quadrangular pyramid and a pentagonal pyramid are shown. , An octagonal pyramid, or any other form of a polygonal pyramid may be used, and a modified pyramid having a groove formed on the outer peripheral surface of the protrusion can also be used.

FIG. 4 is a schematic view briefly showing the structure of the face and body lift suture thread 30 according to another embodiment of the present invention. As shown in FIG. 4, a funnel-shaped protrusion 32 can be formed on the main thread 31 of the suture. In this case, the thickness of the funnel wall body 33, which is the outer wall of the funnel-shaped protrusion 32, is preferably 30 to 90% of the diameter of the main thread 31 of the suture. If the thickness of the funnel wall is too thin, the protrusions will be decomposed before the skin is fixed and the skin fixing effect will be reduced. If the wall is too thick, the fixing will not be smooth.

FIG. 5 is a cross-sectional view showing a cross section of the facial and body lift sutures of FIG. As shown in FIG. 5, fixation of the suture to the skin can be achieved by adjusting the wall thickness 33 of the funnel-shaped protrusion 32.

FIG. 6 is a schematic view schematically showing the structure of the suture according to another embodiment of the present invention. As shown in FIG. 6, in the lift suture according to the embodiment of the present invention, when the shape of the protrusion is assumed to be an arrow shape, the direction of the arrow is directed toward the center of the suture (that is, the virtual apex). Protrusions can be formed in both directions (so that the direction of the suture is toward the center of the suture). That is, the lower surfaces of the plurality of protrusions can be arranged symmetrically with respect to the central portion of the suture so as to face both end directions of the suture. As shown in FIG. 6, when the arrow direction of the protrusion is directed toward the center, the protrusion serves to apply a tension to the suture pulled on both sides. That is, the protruding portion acts as an anchor, so that a lift effect that pulls both points is generated.

FIG. 7 is a schematic view schematically showing the structure of the suture according to another embodiment of the present invention. The suture according to another embodiment of the present invention has the direction of the arrow toward both ends (that is, the virtual apex toward both ends), contrary to that shown in FIG. ) The protrusions can be formed symmetrically with respect to the central part of the suture. In this case, on the contrary, the tensile force is not generated based on both points where the protrusions are fixed, but rather the effect of the anchor that fixes the stretched skin by inserting the suture with the skin tissue stretched. By exerting it, it has the advantage of making it possible to stretch the skin tissue of a specific part. That is, as shown in FIG. 7, a pair of protrusions shaped like a pincushion can simultaneously serve as a lift and an anchoring point.

FIG. 8 is a schematic view schematically showing the structure of the suture according to another embodiment of the present invention. When the shape of the protrusion is assumed to be an arrow shape, the protrusion can be formed so that the structures in which the arrow directions are in contact with each other are repeatedly arranged. The two arrows may be the same size, or one may be larger. More specifically, as shown in FIG. 8a, the funnel-shaped protrusions face each other, but can have a structure of sutures that are in immediate contact, and the funnel-shaped protrusions that are in contact with each other in this way are as if they were a janggu or a pincushion. It is similar in shape and can have a structure in which such funnel-shaped protrusions in contact with each other in a cane drum or pincushion shape are repeated. At this time, the funnel-shaped protrusions in contact with each other may be replaced by conical protrusions in contact with each other or polygonal pyramid-shaped protrusions (not shown) as shown in FIG. 8b. On the other hand, the funnel-shaped protrusion, the polygonal pyramid-shaped protrusion or the conical protrusion can be separated from each other at a predetermined distance through the connecting portion without being completely in contact with each other, and such a structure is shown in FIGS. 8c to 8f. In this case, c and e in FIG. 8 are sutures having funnel-shaped protrusions, and d and f in FIG. 8 are sutures having conical protrusions. In this case, the thickness of the connecting portion may be thicker than the main thread of the suture (c and d in FIG. 8) and may be the same as the main thread of the suture (e and f in FIG. 8). When the connection site is thick, it is possible to prevent the suture from being cut at the connection site where the tension acts most strongly. The predetermined distance can be freely adjusted in the range of 1/10 to 10 times the height of the conical protrusion or the funnel-shaped protrusion. As described above, a suture having a structure in which funnel-shaped protrusions, polygonal pyramid-shaped protrusions, or conical protrusions are repeated while forming a thread-wound structure in which they face each other has two protrusions facing each other and a space between them. By pulling, a lift effect is produced and it also acts as an anchoring point.

FIG. 9 is a schematic view schematically showing a suture having a shape in which the lower surfaces 43 of the protrusions according to an embodiment of the present invention face each other. Although the distance c between the lower surfaces 43 facing each other is shown to be shorter than the distance d between the vertices 46 facing each other in FIG. 9, c and d may be the same or different.
As shown in FIGS. 8 and 9, the lifting suture according to the embodiment of the present invention exerts a lifting effect by pulling tissue between two facing protrusions and a space between them, and also serves as an anchoring point. To do.

FIG. 10 is a schematic view schematically showing a suture having a shape in which the lower surfaces 53 of the protrusions according to the embodiment of the present invention face each other and the connecting line of the lower surface 53 of the protrusions is thicker than the thickness of the main thread of the suture. is there.

FIG. 11 is an outline showing a suture having a shape in which the lower surface 63 of the protrusions according to the embodiment of the present invention has one protrusion 62b in a pair of protrusions facing each other and the adjacent protrusion 62c formed in the same direction. It is a figure. The order in which the protrusions are arranged may be irregular, such as the two protrusions 62a and 62c facing the lower surface 63 of the protrusions and the two protrusions 62a and 62c, and at this time, the lower surface of the protrusions may be arranged. The length of the suture 67 between the facing protrusions 62a and 62b and the length of the suture between the protrusions 62c and 62d facing the apex of the protrusion may be the same or different. Further, the thickness of the main yarn 67 between the protrusions 62a, 62b, 62d, and 62e facing the lower surfaces may be the same as or thicker than the thickness of the main yarn 61 between the facing vertices, and may be the same as the thickness of the lower surface 63 of the protrusions. It may be the same or thinner.

FIG. 12 is a schematic view schematically showing a suture having a shape smaller than the protrusion 72a in which any one of the pair of protrusions 72b facing the lower surface according to the embodiment of the present invention faces. .. When the protrusions are regularly arranged as shown in FIG. 8 or the protrusion directions are irregularly arranged as shown in FIG. 11, the sizes of continuous protrusions 72a, 72b, 72c, 72d, 72e, 72f and 72g They may be the same or different. At this time, the distance between the protrusions may be the same or different.

FIG. 13 is a vertical cross-sectional view showing a vertical cross section of a protrusion having various outer shapes of a suture according to an embodiment of the present invention. a is a vertical cross section that is possible when the protrusion has a truncated cone or polygonal pyramid shape, b is a vertical cross section that is possible when the protrusion has a truncated cone or polygonal pyramid shape, and c is It is a vertical cross section when the protrusion is a truncated cone type or a polygonal pyramid shape and the inside is empty with only the outer wall and the main thread remaining, and d is the outer wall when the protrusion is a truncated cone type or a truncated cone type shape. It is a vertical cross section when the inside of which only the main thread remains is a truncated cone type, and f is a vertical cross section when the two protrusions are a truncated cone type protrusion facing each other. The vertical cross section of the protrusions shows various shapes depending on the morphology of the various protrusions described above, and the protrusions having such a shape can be arranged regularly or irregularly.

FIG. 14 is a side view of the protrusions having various outer shapes of the suture according to the embodiment of the present invention, as viewed from the suture. At this time, the morphology of the protrusions is exemplified by a cone type (a), a quadrangular pyramid type (b), a quadrangular pyramid type (c), a quadrangular pyramid type (d), an octagonal pyramid type (f), and an octagonal pyramid type. (G), a modified hexagonal pyramid (h), a modified quadrangular pyramid (i), a modified triangular pyramid (j), a modified octagonal pyramid (k), and a conical funnel-shaped protrusion having a concave outer peripheral surface. Examples include a form in which a groove is formed in the wall body (l) and a form in which a groove is formed in the wall body of a quadrangular pyramid-shaped funnel-shaped protrusion (m), and various modifications (not shown) are also possible.

FIG. 15 is a schematic view schematically showing a suture that reflects various deformations of protrusions according to an embodiment of the present invention. As shown in FIG. 15, the above-mentioned protrusions and protrusions or cogs 83a, 83b, 83c formed on the main yarn can be arranged regularly or irregularly.
The present invention has been described with reference to the examples described above, but this is merely exemplary, and any person with ordinary knowledge in the art may have more variations and equivalents. You will understand that the examples are possible. Therefore, the true technical protection scope of the present invention must be defined by the technical idea of the appended claims.

The sutures for facial and skin lift according to one embodiment of the present invention can be used as a medical device used for medical treatment for the purpose of health or skin beauty.

Claims (20)

A plurality of protrusions are face and body lift sutures made of polymer or gold formed on the outer peripheral surface of the main thread of the suture, and the protrusions are formed in a radial symmetric structure centered on the main thread of the suture. Cone, Pyramid, Cone, Deformed Pyramid, Pyramid, Deformed Pyramid, Cylindrical, Deformed Cylindrical, Polygonal Pillar and Deformed Many It has a pyramid-shaped three-dimensional structure or a funnel shape in which a part or all of the space excluding the outer peripheral surface of the three-dimensional structure and the main thread portion of the suture is vacant, and the plurality of protrusions center on the suture. Facial and body lift sutures that are symmetrically arranged with their apex facing each other relative to the reference. A plurality of paired protrusions or protrusion units are facial and body lift sutures made of polymer or gold formed on the outer peripheral surface of the main thread of the suture, and the protrusions are centered on the main thread of the suture. Conical, polygonal pyramid, conical pyramid, deformed polygonal pyramid, polygonal pyramid, deformed polygonal pyramid, cylindrical, deformed cylinder, polygonal column formed in a radial symmetric structure Facial and body lift sutures having a molded and deformed polygonal pyramid-shaped three-dimensional structure or a funnel shape in which part or all of the space excluding the main thread portion of the outer peripheral surface and internal suture thread of the three-dimensional structure is open. yarn. The suture for facial and body lift according to claim 1 or 2, wherein the angle of the generatrix, which is the inclined surface of the protrusion, is formed at an angle of 20 to 60 ° with respect to the central axis of the main thread of the suture. The suture for facial and body lift according to claim 1 or 2, wherein the protrusion is a flat surface or a curved surface recessed in the apex direction. The suture for facial and body lift according to claim 1 or 2, wherein the thickness of the funnel-shaped outer wall is 30 to 90% of the diameter of the main thread of the suture. The suture for facial and body lift according to claim 1 or 2, wherein the polymer is a non-water-absorbent polymer or a water-absorbent polymer. The suture for facial and body lift according to claim 2, wherein the pair of protrusions have a symmetrical shape in which the vertices or the lower surfaces of the protrusions face each other. The suture for facial and body lift according to claim 2, wherein the protrusion unit is formed by alternately arranging a plurality of protrusions in one direction and a single number or a plurality of protrusions in the opposite direction. The suture for facial and body lift according to claim 8, wherein the number of protrusions in one direction and the number of protrusions in the opposite direction are symmetrical to each other. The suture for facial and body lift according to claim 8, wherein the number of protrusions in one direction and the number of protrusions in the opposite direction are asymmetrical. The virtual vertices, which are the points where the extension lines of the generatrix of the protrusion meet inside the main thread of the suture, are formed in both directions so as to be toward both ends, or the virtual vertices are formed toward the center. The facial and body lift suture according to claim 1 or 2, which is formed in both directions. The facial and body lift suture according to claim 1 or 2, wherein the size of the continuously arranged protrusions is regularly or irregularly formed. The facial and body lift suture according to claim 1 or 2, wherein the morphology of the continuously arranged protrusions is regularly or irregularly formed. The facial and body lift suture according to claim 1 or 2, wherein one or more cogs are regularly or irregularly formed on the protrusion and / or the main thread of the suture. The facial and body lift suture according to claim 2, wherein the vertices or lower surfaces of the pair of protrusions face each other or are separated by a predetermined distance. The facial and body lift according to claim 15, wherein when the apex or lower surface of the protrusion is separated, the connecting site between the apex or lower surface is the same thickness as or thicker than the main thread of the suture. Suture for. The facial and body lift suture according to claim 15, wherein when the apex or lower surface of the protrusion is separated, the separated distance between the apex or lower surface is regular or irregular. The facial and body lift suture according to claim 2, wherein the pair of protrusions or protrusion units are arranged regularly or irregularly. The facial and body lift suture according to claim 2, wherein the pair of protrusions or protrusion units has a large number of other units in a combination of protrusions of other forms. The facial and body lift suture according to claim 14, wherein the pair of protrusions or protrusion units and cogs are arranged regularly or irregularly.

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