Medical Mesh Assembly

Abstract

To provide a mesh assembly having improved fixing force and pulling force for biological tissues and having an excellent effect of coming in close contact with skin tissues and maintaining and fixing the skin tissues.SOLUTION: There may be provided a mesh assembly having improved fixing force and pulling force for biological tissues and having an excellent effect of coming in close contact with skin tissues and maintaining and fixing the skin tissues. The mesh assembly is inserted in skin tissues of a human body, and may include a mesh member in which a plurality of linear members crossing each other are formed in a cylindrical shape.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] FIELD OF THE INVENTION The present invention relates to medical devices, and more particularly to mesh assemblies for use in cosmetic and plastic surgery procedures. [Background technology]

[0002] Wrinkles are a major problem associated with skin aging, and can make the appearance of aging more noticeable. Therefore, treatments that effectively remove wrinkles and restore skin elasticity are widely used in the field of skin cosmetic surgery.

[0003] Botox injections and filler injections can be used for wrinkle removal procedures. There are also procedures that insert threads into the skin to lift the skin and increase its elasticity. In thread procedures, a cannula is used to insert threads into the skin using a needle. The threads are fixed to the tissue inside the skin to relieve wrinkles and lift the skin. While various types of threads are used in thread procedures, a new type of skin insertion structure with enhanced fixing and traction strength is required. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been devised to solve the above-mentioned problems of the prior art, and the problem to be solved by the present invention is to provide a mesh assembly that has improved fixing and traction force on biological tissue and has excellent adhesion, maintenance and fixing effect with skin tissue. [Means for solving the problem]

[0005] As a means for solving the above-mentioned problems, the mesh assembly disclosed in the present invention is a mesh assembly to be inserted into the skin tissue of a human body, and includes a mesh member having a plurality of wire members that intersect with each other, the mesh member being configured in a cylindrical shape that forms a passageway having a predetermined diameter inside, one or more of the plurality of wire members of the mesh member including one or more protrusions that protrude from the surface, and the entire passageway provided inside the mesh member being configured as an empty space where no other material is disposed.

[0006] The direction in which the plurality of protrusions in the first region of the linear member extend may be different from the direction in which the plurality of protrusions in the second region of the linear member extend.

[0007] The direction in which the plurality of protrusions in the first region of the linear member extend may be opposite to the direction in which the plurality of protrusions in the second region of the linear member extend.

[0008] The intervals at which the plurality of protrusions are arranged at the edge of the line member may be narrower than the intervals at which the plurality of protrusions are arranged at the center of the line member.

[0009] The intervals at which the plurality of protrusions are arranged at the edge of the wire member may be narrower than the intervals at which the plurality of protrusions are arranged at the center of the wire member, and the area of ​​the plurality of holes at the edge of the mesh member corresponding to the edge of the wire member may be larger than the area of ​​the plurality of holes at the center of the mesh member corresponding to the center of the wire member.

[0010] The ends of the mesh member may be joined by heat sealing or adhesive.

[0011] The mesh assembly may further include an insertion tube extending in a first direction that is a length direction, having a channel space formed therein, and configured to accommodate the mesh member within the channel space.

[0012] The insertion tube may include a crimped portion along a second direction perpendicular to the first direction, and the cross section of the channel space at the crimped portion may have a reduced width in the second direction and an increased width in a third direction perpendicular to the first and second directions. [Effects of the Invention]

[0013] According to one embodiment of the present invention, the mesh members of the mesh assembly are configured in a flat or cylindrical shape using a plurality of wire members that intersect with each other, thereby improving the fixing force and traction force on biological tissue, and providing a mesh assembly that has excellent adhesion, maintenance, and fixing effect to skin tissue. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a diagram showing a portion of a mesh member 100 that constitutes a mesh assembly according to an embodiment of the present invention. [Figure 2] 10A and 10B are diagrams showing a portion of a mesh member constituting a mesh assembly according to another embodiment of the present invention. [Figure 3] FIG. 2 shows a mesh assembly including a mesh member and a core 200 according to another embodiment of the present invention. [Figure 4] 10A and 10B show mesh assemblies including mesh members and a core according to other embodiments of the present invention. [Figure 5] 10A and 10B are diagrams illustrating examples of the direction of protrusions formed on a line member. [Figure 6] 10A and 10B are diagrams illustrating examples of the areas of holes formed in a mesh member. [Figure 7] 10A and 10B are diagrams illustrating examples of intervals between protrusions formed on a linear member. [Figure 8] 10A and 10B are diagrams showing a portion of a mesh member constituting a mesh assembly according to another embodiment of the present invention. [Figure 9] 10A to 10C are diagrams showing various examples of a plurality of protrusions formed on a line member. [Figure 10] 1A-1C are exemplary diagrams illustrating portions of a mesh assembly in accordance with the present disclosure. [Figure 11]10A and 10B are diagrams showing an exemplary insertion tube applicable to the mesh assembly according to the present disclosure. [Figure 12] 10A and 10B are diagrams showing an exemplary insertion tube applicable to the mesh assembly according to the present disclosure. [Figure 13] 10A and 10B are diagrams illustrating another exemplary insertion tube applicable to the mesh assembly according to the present disclosure. [Figure 14] 10A and 10B are diagrams illustrating another exemplary insertion tube applicable to the mesh assembly according to the present disclosure. [Figure 15] 10A and 10B are diagrams illustrating another exemplary insertion tube applicable to the mesh assembly according to the present disclosure. [Figure 16] 10A and 10B are diagrams illustrating another exemplary insertion tube applicable to the mesh assembly according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0015] While the present invention may be modified in various ways and may take various forms, specific examples will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the present invention to the specific embodiments, and it should be understood that the present invention includes all modifications, equivalents, and alternatives that fall within the spirit and technical scope of the present disclosure. Throughout the drawings, like reference numerals are used to refer to like elements.

[0016] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms as defined in commonly used dictionaries should be interpreted to have a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0018] 1 is a diagram showing a portion of a mesh member 100 constituting a mesh assembly 10 according to one embodiment of the present invention. Although not shown in FIG. 1, an insertion tube such as a cannula or needle may be provided at the tip of the mesh assembly 10, and the mesh member 100 may be coupled to or inserted into the insertion tube.

[0019] The mesh member 100 of the mesh assembly 10 can be inserted into skin tissue of a human body through an insertion tube such as a cannula. Referring to Fig. 1, the mesh member 100 of the mesh assembly 10 can be formed in a cylindrical shape and can include a plurality of wire members 110. Holes can be provided between the plurality of wire members 110.

[0020] The plurality of wire members 110 may be spirally extended in the length direction of the mesh member 100. The plurality of wire members 110 may be woven to cross each other to form a three-dimensional cylindrical shape.

[0021] The mesh member 100 may have passages of a predetermined diameter formed therein to form a three-dimensional shape similar to a cylinder. In the embodiment shown in FIG. 1, the passages of a predetermined diameter formed inside the mesh member 100 are empty. That is, no other members are disposed inside the mesh member 100. However, in other embodiments described below, other members (such as a core) may be disposed inside the mesh member 100.

[0022] The mesh member 100 may be made of a medical material used for implantation or insertion into the human body. For example, the mesh member 100 may be made of a biocompatible nonabsorbable polymer or biodegradable polymer that is harmless to the human body.

[0023] The mesh member 100 may also be formed of a hydrolyzable material. For example, the mesh member 100 may be formed of a material containing polydioxanone (PDO). Alternatively, the mesh member 100 may be formed of a material containing one or more polymers selected from the group consisting of polylactic acid (PLA), poly-L-lactide (PLLA), polycaprolactone (PCL), polyhydroxyalkanoate (PHA), polyhydroxybutyrate (PHB), poly-D-lactide, and poly-DL-lactide (PDLLA).

[0024] 1, the interior of the mesh member 100 of the mesh assembly 10 is open. With this configuration, when the mesh member 100 is inserted into the skin, skin tissue can easily penetrate into the interior of the mesh member 100. This can promote bonding between the mesh member 100 and the skin tissue.

[0025] FIG. 2 is a diagram showing a portion of a mesh member 100 constituting a mesh assembly 10 according to another embodiment of the present invention.

[0026] 2, the mesh member 100 of the mesh assembly 10 may be formed in a cylindrical shape and may include a plurality of wire members 110. Holes may be provided between the plurality of wire members 110.

[0027] The mesh member 100 of the mesh assembly 10 may be configured in a cylindrical shape that forms a passageway having a predetermined diameter inside. The inner passageway of the mesh assembly 10 including the mesh member 100 is open. With regard to the mesh member 100, the description of FIG. 1 may be referred to.

[0028] The mesh member 100 may include a plurality of protrusions 130 protruding from the surfaces of the plurality of wire members 110. The protrusions 130 may fix the position of the mesh member 100 inside the skin tissue or generate effective tension to pull the skin.

[0029] The plurality of protrusions 130 can grip tissue inside the skin to create tension. The plurality of protrusions 130 can function to relieve or remove sagging skin and wrinkles. The plurality of protrusions 130 can protrude from the surface of the plurality of wire members 110 and can be arranged at predetermined intervals.

[0030] The plurality of protrusions 130 can provide a bonding force with the skin tissue when pulling the skin during the treatment process. After the mesh member 100 is inserted into the skin with an insertion tool, tension can be provided by the pulling force of the practitioner when the insertion tool is removed.

[0031] The plurality of protrusions 130 can function to maintain the position of the entire mesh member 100 that has been pulled upward by tension. Furthermore, the plurality of protrusions 130 can prevent the mesh member 100 from dropping downward after treatment. That is, the plurality of protrusions 130 can not only provide tension by being fixed to the skin tissue during the treatment process, but also prevent sagging of the skin in the long term.

[0032] The plurality of protrusions 130 may be formed at regular intervals or at different intervals on the plurality of wire members 110. A three-dimensional cylindrical shape may be formed by spirally weaving the plurality of wire members 110, each having a plurality of protrusions 130 formed thereon, so that they intersect with each other. The plurality of protrusions 130 may extend in random directions from the three-dimensional cylindrical mesh member 100. In another embodiment, the plurality of protrusions on the mesh member 100 may extend in a predetermined direction.

[0033] 2, the interior of the mesh member 100 of the mesh assembly 10 is open. With this configuration, when the mesh member 100 is inserted into the skin, skin tissue can easily penetrate into the interior of the mesh member 100. This can promote bonding between the mesh member 100 and the skin tissue.

[0034] 2, a plurality of protrusions 130 are formed on the plurality of wire members 110 of the mesh member 100. This configuration can improve the fixing force and traction force of the mesh member 100 to the skin tissue.

[0035] FIG. 3 shows a mesh assembly 10 including a mesh member 100 and a core 200 according to another embodiment of the present invention.

[0036] 3, the mesh assembly 10 may include a mesh member 100 and a core 200. The core 200 may include cogs protruding from a surface thereof.

[0037] The mesh member 100 of the mesh assembly 10 may be formed in a cylindrical shape and may include a plurality of wire members 110. Holes may be provided between the plurality of wire members 110.

[0038] The mesh member 100 may be configured in a cylindrical shape that forms a passageway having a predetermined diameter inside. A core 200 extending in the length direction of the mesh member 100 may be disposed in the inner passageway of the mesh assembly 10 including the mesh member 100.

[0039] The core 200 may be positioned inside the mesh member 100. The core 200 may be formed with a diameter smaller than the diameter of the passage. The cross section of the core 200 may be circular. However, the cross section of the core 200 is not limited to this example, and the cross section of the core 200 may be configured in various shapes, such as an ellipse or a polygon.

[0040] The core 200 may include one or more cogs 250 extending from the surface. The cogs 250 may protrude from the surface of the core 200 in a direction slanting toward one side. The cogs 250 may be formed to a length such that their ends extend outside the mesh member 100. That is, the ends of the cogs 250 may protrude outside the mesh member 100 by passing through the holes 120 between the wire members 110 included in the mesh member 100.

[0041] The cogs 250 may be formed on the upper and lower portions of the core 200. That is, the cogs 250 may be alternately formed at 180-degree intervals on the outer circumferential surface of the core 200. However, the formation positions of the cogs 250 are not limited to this example, and the cogs 250 may be alternately formed at various intervals, such as 90-degree intervals or 120-degree intervals, on the outer circumferential surface of the core 200.

[0042] The core 200 and the mesh member 100 may be joined by thermal bonding (thermal fusion), adhesive, etc. That is, the core 200 and the mesh member 100 may be joined by thermally fusing the ends of the core 200 and the ends of the mesh member 100 or by bonding them with an adhesive.

[0043] 3, a core 200 is formed inside the mesh member 100 of the mesh assembly 10, and cogs 250 protruding from the surface of the core 200. This configuration can improve the fixing force and traction force of the mesh assembly 10 to the skin tissue.

[0044] FIG. 4 shows a mesh assembly 10 including a mesh member 100 and a core 200 according to another embodiment of the present invention.

[0045] 4, the mesh assembly 10 may include a mesh member 100 and a core 200. The mesh member 100 may include protrusions 130 protruding from its surface. For the mesh member 100 and the protrusions 130, please refer to the description of the protrusions 130 in the embodiment of FIG. 2.

[0046] The core 200 may include cogs 250 protruding from the surface. For the core 200 and the cogs 250, reference may be made to the description of the core 200 and the cogs 250 in the embodiment of FIG.

[0047] 4, a core 200 is formed inside the mesh member 100 of the mesh assembly 10, and cogs 250 protruding from the surface of the core 200 are formed on the core 200, and protrusions 130 protruding from the surface of the mesh member 100 of the mesh assembly 10. This configuration can further improve the fixing force and traction force of the mesh assembly 10 to the skin tissue.

[0048] Fig. 5 is a diagram illustrating the direction of the protrusions 130 formed on the wire member 110. In Fig. 5, one wire member 110 having a plurality of protrusions 130 formed thereon is used to manufacture the mesh member 100. A three-dimensional cylindrical mesh member 100 can be manufactured by weaving a plurality of wire members 110 shown in Fig. 5 so that they cross each other.

[0049] 5, the wire member 110 may include a plurality of protrusions 130 protruding from the surface thereof. The wire member 110 may include a first region A1 and a second region A2 in which the extension directions of the protrusions are different from each other.

[0050] The direction in which the plurality of protrusions arranged in the first region A1 of the wire member 110 extend may be different from the direction in which the plurality of protrusions arranged in the second region A2 of the wire member 110 extend.

[0051] 5, the extending direction of the plurality of protrusions 130 arranged in the first region A1 of the wire member 110 may be opposite to the extending direction of the plurality of protrusions in the second region A2 of the wire member 110. In this embodiment, when a cylindrical mesh member 100 is manufactured by crossing a plurality of wire members 110 with each other, the extending direction of the plurality of protrusions 130 arranged in the first region A1 of the mesh member 100 may be configured to be entirely opposite to the extending direction of the plurality of protrusions 130 in the second region A2.

[0052] As in the embodiment shown in FIG. 5, by configuring the plurality of protrusions 130 arranged in the first region A1 to face the plurality of protrusions 130 arranged in the second region A2, the fixing force and traction force of the mesh assembly 10 can be further improved.

[0053] 6 is a diagram illustrating the area of ​​the holes 120 formed in the mesh member 100. In one embodiment, the mesh member 100 may include a plurality of regions B1 and B2 having different hole 120 areas.

[0054] 6, mesh member 100 may include a central portion B2 and an edge portion B1. In one embodiment, the area of ​​the holes in central portion B2 of mesh member 100 may be larger than the area of ​​the holes in edge portion B1 of mesh member 100. However, the present invention is not limited to the embodiment of FIG. 6, and in other embodiments, the area of ​​the holes in central portion B2 of mesh member 100 may be smaller than the area of ​​the holes in edge portion B1 of mesh member 100.

[0055] Also, although not shown in FIG. 6, the mesh member 100 may have protrusions 130 protruding from the surface, and the area of ​​the holes may vary depending on the number and spacing of the protrusions 130 formed on the mesh member 100.

[0056] As in the embodiment shown in FIG. 6, by configuring the mesh member 100 to include multiple regions B1, B2 having different hole 120 areas, the fixing force and traction force of the multiple regions of the mesh member 100 on the skin tissue can be diversified.

[0057] FIG. 7 is a diagram illustrating the intervals between the protrusions 130 formed on the line member 110. As shown in FIG.

[0058] 7, the wire member 110 may include a plurality of protrusions 130 protruding from a surface thereof. In one embodiment, the wire member 110 may be configured such that the interval C1 at which the plurality of protrusions 130 are arranged at the edge is narrower than the interval C2 at which the plurality of protrusions 130 are arranged at the center of the wire member 110. When a cylindrical mesh member 100 is manufactured by crossing a plurality of wire members 110 of this embodiment, the interval C1 at which the plurality of protrusions 130 are arranged at the edge of the mesh member 100 is narrower than the interval C2 at which the plurality of protrusions 130 are arranged at the center of the mesh member 100.

[0059] When the spacing between the protrusions 130 is the same, the fixing force and traction force on the skin tissue may be relatively weaker at both ends of the mesh member 100 than at the center. According to the embodiment shown in Fig. 7, the spacing between the plurality of protrusions 130 at the edges is narrower than the spacing between the plurality of protrusions 130 at the center, which can further improve the fixing force and traction force on the skin tissue at both ends of the mesh member 100.

[0060] In one embodiment, in an area of ​​the mesh member 100 where the spacing between the protrusions 130 is closer, the area of ​​the mesh holes may be larger than in an area of ​​the mesh member 100 where the spacing between the protrusions 130 is larger. In an area where the spacing between the protrusions 130 is closer, the protrusions 130 may interfere with each other. By configuring the area of ​​the mesh holes to be larger in an area where the spacing between the protrusions 130 is closer, the effects of interference between the protrusions 130 may be reduced.

[0061] FIG. 8 is a diagram showing a portion of a mesh member 100 constituting a mesh assembly 10 according to another embodiment of the present invention.

[0062] 8, the mesh member 100 of the mesh assembly 10 may include a plurality of intersecting line members 110. The mesh member 100 may be configured as a flat member having a predetermined area. The plurality of line members 110 may include a plurality of protrusions 130 protruding from the surface.

[0063] 1 to 7 may be referred to when there is no contradiction in the description of the mesh member 100, wire members 110, and protrusions 130 according to the embodiment of Fig. 8. The descriptions of the extension direction of the protrusions 130 shown in Fig. 5, the area of ​​the holes in the mesh member 100 shown in Fig. 6, and the spacing between the protrusions 130 shown in Fig. 7 may be applied to the mesh member 100, wire members 110, and protrusions 130 according to the embodiment of Fig. 8.

[0064] FIG. 9 shows various examples of the plurality of protrusions 130 formed on the wire member 110. In FIG.

[0065] 9(a) illustrates a plurality of protrusions 130 arranged at 180-degree intervals in the circumferential direction of the wire member 110. Referring to FIG. 9(a), the plurality of protrusions 130 may be arranged in the length direction. The plurality of protrusions 130 may be arranged alternately at 180-degree intervals in the circumferential direction.

[0066] 9(b) illustrates a plurality of protrusions 130 arranged at 90-degree intervals in the circumferential direction of the wire member 110. Referring to FIG. 9(b), the plurality of protrusions 130 may be arranged in the length direction. The plurality of protrusions 130 may be arranged alternately at 90-degree intervals in the circumferential direction.

[0067] If the protrusion arranged below the wire member 110 is defined as the first protrusion 131, the second protrusions 132 may be formed in front of the first protrusion at 90-degree intervals in the circumferential direction. The third protrusions 133 may be formed above the second protrusions 132 at 90-degree intervals. The fourth protrusions may be arranged rearward and at 90-degree intervals from the third protrusion 133, although not shown in the drawings.

[0068] The shapes of the protrusions 130 shown in FIGS. 2, 5 and 9 are merely examples of the shapes of the protrusions 130 of the wire member 110 according to the present invention, and the present invention is not limited to these examples.

[0069] FIG. 10 is an exemplary diagram of a portion of a mesh assembly 40 in accordance with the present disclosure.

[0070] 10, the mesh assembly 40 may further include an insertion tube 400 in addition to the mesh assembly 10 related to the above-described embodiment. That is, the mesh assembly 40 may include a mesh member 100, a core 200, and an insertion tube 400. The mesh assembly 40 according to the present invention is not limited to the embodiment shown in FIG. 10, and the mesh assembly 40 may include the mesh member 100 and the insertion tube 400 without the core 200.

[0071] If the direction in which the core 200 extends is defined as a first direction, the insertion tube 400 can extend along the first direction. The insertion tube 400 can include an internal channel space 420. In the present disclosure, the insertion tube 400 is a term that includes all types of medical instruments having an internal channel space 420, including cannulas, Stewart needles, skin needles, catheter needles, injection needles, etc.

[0072] The channel space 420 may extend from an opening 430 located at the rear end of the insertion tube 400 to an opening 440 located at the distal end of the insertion tube 400. As shown in Fig. 10, the mesh member 100 and the core 200 may be inserted into the channel space 420 of the insertion tube 400. The mesh member 100 and the core 200 may be inserted into the opening 430 at the rear end of the channel space 420 and passed through to or beyond the opening 440 at the distal end. A connector 500 may be provided at the rear end of the insertion tube 400 for ease of use.

[0073] 11 and 12 are diagrams exemplarily showing an insertion tube 400A applicable to the mesh assembly 40 according to the present disclosure.

[0074] According to one embodiment of the present invention, the insertion tube 400A may include a crimped portion 450. Here, the term "crimped portion 450" is merely used to describe the shape of the insertion tube 400A, and the crimped portion 450 may not necessarily be formed by compressing the main body 410 of the insertion tube 400A.

[0075] If the direction in which the insertion tube 400 extends is defined as a first direction, a direction perpendicular to the first direction is defined as a second direction, and a direction perpendicular to both the first and second directions is defined as a third direction, the body 410 of the insertion tube 400 at the crimped portion 450 may be crimped in the second direction, so that the cross section of the crimped portion 450 may have a reduced width in the second direction. The crimped portion 450 may have an increased width in the third direction.

[0076] In the mesh assembly 40 according to one embodiment of the present invention, the cogs 250 are formed to protrude from the core 200, so the cross section of the core 200 including the cogs 250 has a larger width in a particular direction (i.e., the third direction) than in another direction (i.e., the second direction). If the channel space 420 of the insertion tube 400 maintains a circular cross section but has an increased inner diameter to accommodate the mesh member 100 and core 200 therein, the overall diameter of the insertion tube 400 may become excessively large. In this case, an increased-sized hole may be formed at the treatment site of the patient, which may increase the likelihood of scarring.

[0077] When the crimped portion 450 is formed on the insertion tube 400 according to one embodiment of the present invention, the cross section of the channel space 420 has a width that decreases in the second direction and an increased width in the third direction. This insertion tube 400 is suitable for accommodating the core 200 that has a narrow width in the second direction and a wide width in the third direction. In one embodiment of the present invention, the crimped portion 450 can be formed by compressing a portion of a basic cannula, for example, an 18-gauge cannula.

[0078] 11 and 12, a plurality of crimped portions 450 are formed on the insertion tube 400. The positions and number of the crimped portions 450 may be changed as needed. The distal end 412 of the insertion tube 400 may be rounded to have a smooth curved surface without sharp corners. A front opening 440 of the channel space 420 may be formed near the distal end 412.

[0079] 13 and 14 are diagrams exemplarily showing another insertion tube 400B that can be applied to the mesh assembly 40 according to the present disclosure.

[0080] 13 and 14, the crimped portion 450 is formed over most of the body 410 of the insertion tube 400, and the crimped portion 450 extends to the front opening 440. In the insertion tube 400B shown in FIGS. 13 and 14, the rear end of the body 410 of the insertion tube 400 remains uncrimped, but in other embodiments, the crimped portion 450 may be formed over the entire body 410 of the insertion tube 400, including the rear end of the body 410.

[0081] 15 and 16 are views exemplarily showing another insertion tube 400C applicable to the mesh assembly 40 according to the present disclosure. In the insertion tube 400C shown in Figures 15 and 16, the distal end 414 of the insertion tube 400 is formed with a cut surface, and the front opening 440 of the channel space 420 is formed on the cut surface of the distal end 414. This structure has the advantage that the crimped portion 450 can be extended to the distal end 414.

[0082] The scope of the present invention is defined by the claims that follow, and all modifications and variations that fall within the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

Claims

1. A mesh assembly for insertion into skin tissue of a human body, comprising: a mesh member having a plurality of line members intersecting each other; The mesh member is configured in a cylindrical shape that forms a passage having a predetermined diameter therein, At least one of the plurality of wire members of the mesh member includes at least one protrusion protruding from a surface thereof, The entire passage provided inside the mesh member is composed of an empty space in which no other material is placed, The plurality of wire members are spirally woven in the length direction of the mesh member, crossing each other to form a three-dimensional cylindrical shape; The intervals at which the plurality of protrusions are arranged at the edge of the linear member are narrower than the intervals at which the plurality of protrusions are arranged at the center of the linear member, The area of ​​the plurality of holes at the edge of the mesh member corresponding to the edge of the wire member is larger than the area of ​​the plurality of holes at the center of the mesh member corresponding to the center of the wire member. Mesh assembly.

2. The direction in which the plurality of protrusions in the first region of the wire member extend is different from the direction in which the plurality of protrusions in the second region of the wire member extend. The mesh assembly of claim 1 .

3. The direction in which the plurality of protrusions in the first region of the wire member extend is opposite to the direction in which the plurality of protrusions in the second region of the wire member extend. The mesh assembly of claim 2 .

4. The ends of the mesh member are joined by heat fusion or adhesive. The mesh assembly of claim 1 .

5. The surgical instrument further includes an insertion tube extending in a first direction, which is a length direction, having a channel space formed therein, and configured to accommodate a mesh member in the channel space. The mesh assembly of claim 1 .

6. the insertion tube includes a portion crimped along a second direction perpendicular to the first direction, The cross section of the channel space at the compressed portion has a reduced width in a second direction, The width of the insulating film is increased in a third direction perpendicular to the first and second directions. The mesh assembly of claim 5 .

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