KR102057894B1 - A corn type tube-thread and a needle kit incorporating the same - Google Patents

Abstract

The present invention relates to a cone-type tubular suture and a needle assembly to which it is coupled, and more particularly, by twisting two or more individual sutures crosswise to form a hollow portion into which a needle needle tube flows into the tubular suture having a mesh surface. The shear portion guided to the human body introduced into the hollow tube introduced into the hollow portion to form a cone type by densely forming the suture twist interval so that the needle needle tube is separated from the side through the gap between the individual sutures during the insertion process. To prevent, and the middle portion to loosen the suture twist interval is formed to facilitate the inflow into the internal hollow of the human tissue to be regenerated relates to a cone-type tubular suture and needle assembly combining the same can improve the tissue filling effect.

Description

A CORN TYPE TUBE-THREAD AND A NEEDLE KIT INCORPORATING THE SAME}

The present invention relates to a cone-type tubular suture and a needle assembly incorporating the same, and more particularly, to a tubular tubular suture having a mesh surface while twisting two or more individual sutures crosswise to form a hollow in which a needle needle tube is introduced. The shear part, which is manufactured and guided into the hollow tube introduced into the hollow part, is inserted into the human body to form a cone type by densely forming the suture twist interval, thereby preventing the needle needle tube from being separated to the side through the gap between the individual sutures during the insertion process. And, in the middle portion relates to a needle-type assembly with a cone-type tubular suture that can improve the tissue filling effect by making the inlet into the internal hollow of the tissue to be regenerated by loosely forming the suture twist interval.

A suture used as a surgical suture is a thread used to suture a damaged part of a tissue due to a surgical trauma, and may be classified into a biodegradable suture and a non-biodegradable suture depending on whether it is decomposed in vivo.

Biodegradable suture is a thread that decomposes naturally after a certain period of time after the damaged part of the tissue is closed. It is mainly used to fix skin or suture soft tissue. Non-biodegradable suture is a thread that does not decompose even after the damaged portion of the tissue is sutured, mainly used in vascular, orthopedic surgery.

Since the suture has good closeness with human tissue, its use is being increased as a prosthesis for lifting and pulling the volume back and supporting the tissue by insertion of human tissue.

For example, the human tissue includes a self-healing substance that surrounds the foreign substance to protect the skin tissue from the foreign substance when the foreign substance invades the skin. These self-healing substances not only protect the subcutaneous tissue but also provide the function of strengthening the muscles inside the subcutaneous layer. Therefore, by inserting and fixing the suture to the human body can provide tension between human tissues for the time being can be used to prevent or restore the sagging or depression of the skin.

Korean Patent Laid-Open Publication No. 10-2014-0127333 (published Nov. 3, 2014; hereinafter referred to as Prior Document 1) suggested an improved suture. The prior art document 1 is a suture is formed in a tubular shape, but the surgical needle is attached to the front end inserted into the human body, the needle is preceded by the injection into the human body made of a form in which the suture is drawn, the needle penetrates the human body It has a form to be discharged.

US Patent No. 4372293 (registered Feb. 8, 1983; hereinafter referred to as 'Previous Document 2') proposed an apparatus and method for surgical correction of sagging breasts (Apparatus and method for surgical correction of ptotic breasts). Although the tubular mesh is also applied to the prior document 2, both ends of the tubular mesh have a structure in which the needle and the rod are guided by the needle or the rod when the human body is inserted.

Korean Patent No. 10-1635580 (registered on June 27, 2016; hereinafter referred to as 'prior document 3') has suggested a mesh-type lifting member. The prior art document 3 is a process of injecting the member into the human body by injecting the needle into the human body through the needle and then retracting the needle, but the needle diameter is increased because both the basic yarn and the net yarn surrounding the basic yarn are embedded in the needle. There is a drawback to providing a rejection to the operator.

Therefore, the suture is manufactured in a tubular shape to minimize the diameter of the needle, and the needle is inserted into the tubular suture to push the shear of the tubular suture into the human body and retreat the needle to complete the suture insertion procedure. The study was conducted.

In particular, the direction of the procedure is to close the front end of the tubular suture, the needle is pushed to close the closed shear is made. In this case, the tubular suture shear may be simply fused or bonded, or a method of sealing by mounting a separate bead member, but the tubular suture itself has a plurality of gaps on the side to facilitate the inflow of regenerated tissue. It has a form. Therefore, the needle end may be released through the side opening of the end of the tubular suture due to the pressure applied when the human body is inserted, which may result in the inability to insert the tubular suture to a desired position. The problem of damage occurs. In addition, if the use of a separate cap member to prevent the lateral deviation of the needle is to increase the volume of the additional configuration, the operator may feel uncomfortable by the foreign body.

Therefore, it is necessary to study the suture having a new shape that can prevent the side deviation of the needle when the human body is inserted while removing the foreign body by the addition.

Korean Patent Publication No. 10-2014-0127333 (2014.11.03.Publication): Improved sutures US Patent No. 4372293 (registered Feb. 8, 1983): Apparatus and method for surgical correction of ptotic breasts Korean Registered Patent No. 10-1635580 (2016.06.27.registration): Mesh type lifting member

The cone-type tubular suture of the present invention and a needle assembly combining the same,

Form tightly the side twist gap of the closed front end of the tubular suture without gaps to prevent the needle from protruding to the outside through the side gap in the insertion process, and loosely form the twist gap in the middle part to insert into the tubular suture inside the human body after insertion. To provide a tubular suture and needle assembly to facilitate tissue regeneration.

In addition, it is another object to provide a device that can increase the skin regeneration efficiency by increasing the amount of skin irritation by increasing the contact area with the human tissue when the human body is inserted by forming a bend on the outer surface of the tubular suture by adjusting the twist interval.

Cone type tubular suture of the present invention for solving the above problems,

In the tubular suture having a hollow part manufactured by twisting a plurality of individual sutures crosswise, the front end is closed, and the length of the individual sutures is narrowed to form a dense area by narrowing the distance between the individual sutures so that a gap is removed from the side surface. A cone type front end having a cone shape; And a mesh portion that is continuously woven with the cone type front end portion and forms a mesh region having loosened weaving spacing so as to communicate the inside and the outside by a gap generated in the side surface.

In addition, the rear end portion of the mesh portion may be further formed to form a predetermined length in the shear direction in the shear direction to prevent loosening of the individual sutures.

In addition, the individual suture twist interval of the dense area may be formed to 40 ~ 100 PPI (peak per inch).

In addition, the shear sealing of the cone-type front end portion, it may be made by any one selected from the adhesive, thermal fusion, ultrasonic fusion.

In addition, the cone type front end may be formed in a length of 5 ~ 50mm.

In addition, the dense area and the mesh area may form different numbers of individual sutures participating in the weaving. Here, the participant individual suture that participates in the weaving of the dense area and does not participate in the weaving of the mesh area is along the outer surface of the continuous participant individual suture that participates in the weaving of the dense area and the mesh area in the mesh area between the two dense areas. It is arranged in the lengthwise direction of the straight line and connects two dense areas on both sides of the mesh area so that continuous weaving can be made without thread breaks.

In addition, the mesh unit may be configured such that the dense area and the mesh area are repeatedly formed. In this case, the dense area and the mesh area may form different numbers of individual sutures participating in the weaving. In addition, the participant individual suture that participates in the weaving of the dense area but does not participate in the weaving of the mesh area, along the outer surface of the continuous participant individual suture that participates in both the dense area and the weave of the mesh area in the mesh area between the two dense areas. It is arranged in the lengthwise direction of the straight line and connects two dense areas on both sides of the mesh area so that continuous weaving can be made without any thread break.

In addition, the individual suture, polyglycolide (Polyglycolic acid, PGA), polyglycol (Polyglactin, PGLA), polydioxanone (Polydioxanone, PDO), polyglycolide-co-caprolactone (Poly (glycolide-co -caprolactone, PGCL), poly L-lactic acid (PLLA), polylactic acid (PLA), polycaprolactone (PCL), hyaluronic acid (HA), gold knitting (Gold weaving), a biodegradable material group consisting of a single polymer selected from the group consisting of chitosan or a copolymer of two or more kinds of polymers; Non-biodegradable material group consisting of nylon, polypropylene, polypropylethylene or teflon, silicone; can be selected from one or more.

On the other hand, the needle assembly according to the present invention,

Cone type tubular suture of the present invention; A needle inserted into the hollow portion of the cone type tubular suture; It is integrally coupled to the rear end of the needle while supporting the needle, the inner surface of the open rear end of the needle-shaped cup support formed with a coupling portion coupled to the injector; is configured to include.

Cone type tubular suture of the present invention by the above solution and the needle assembly combining the same,

The closed shear side of the tubular suture is densely formed without gaps to prevent the needle shear into the tubular suture from protruding outside through the gap of the tubular suture shear side, thereby ensuring the stable insertion of the tubular suture even with a needle having a small diameter. Can be done.

In addition, the tubular suture of the present invention can be made by dividing the side into a tight dense area and a mesh area with many gaps to facilitate the inflow of the regenerated tissue through the mesh area.

In addition, due to the difference in weaving density, the diameter of the mesh area becomes narrower than the diameter of the dense area due to the pressure in the human body, thereby increasing the skin irritability by increasing the contact area with the internal tissues in which the curved surface of the tubular suture is formed, thereby increasing skin regeneration efficiency. You can.

In addition, by improving the structure of the dense area to support the pressure in the human body to minimize the distortion it is possible to secure a sufficient skin regeneration space.

In addition, during the procedure, a needle or other therapeutic drug required for skin regeneration may be injected together by the needle, and the injected drug may be fixed by a tubular suture, thereby providing an effect capable of intensive treatment at a desired site. .

1 is a cross-sectional view showing a cone-type tubular suture according to the present invention.
2 and 3a is a cross-sectional view showing a tubular suture according to another embodiment of the present invention.
Figure 3b is a state diagram showing a cross-sectional state when the tubular suture of Figure 3a is subjected to internal pressure.
Figure 4 is an enlarged state of the main portion of the tubular sutures including a partial participation individual sutures in accordance with another embodiment of the present invention.
5a and 5b is a cross-sectional view and photograph showing a needle assembly according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. The present invention may be modified in various ways and may have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the present invention. However, this is not intended to limit the present invention to a specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structures are shown to be enlarged or reduced than actual for clarity of the invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise", "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, or combination thereof described on the specification, and one or the same. It is to be understood that the present invention does not exclude in advance the possibility of the presence or addition of other features, numbers, steps, operations, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those generally used and defined in the dictionary should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. .

1 is a cross-sectional view showing a cone-type tubular suture according to the present invention, the tubular suture 10 of the present invention, the hollow portion 11 is manufactured by twisting a plurality of individual sutures 20 and the needle is inserted therein. Is formed long in the longitudinal direction. The individual sutures are generally provided in general thickness as a yarn used as sutures.

The individual suture 20 is used by combining and using a variety of forms, such as a monofilament consisting of a single strand, a multifilament composed of a plurality of strands, a projection-type monofilament, a monofilament or a multifilament formed with protrusions on the outer surface, etc. It can be provided in a variety of thicknesses can provide the necessary support for the tubular suture.

The tubular suture 10 of the present invention is a cone-type front end portion 30 having a dense region 12 in which gaps are removed by adjusting the distance between the individual sutures, and a mesh region 13 in which the inside and the outside are communicated by the gaps. It is configured to include a mesh portion 40 formed.

As shown, the cone type front end portion 30 of the present invention has a cone shape in which a gap is removed from the side surface by forming a constant length 12 in a closed direction in the rear end direction, and the mesh portion 40. Is woven at loose intervals extending from the cone type front end to form a large side gap to form a mesh region 13 to communicate the inside and the outside.

At this time, the dense area forming the cone type shear portion 30 is to form a narrow gap by twisting a plurality of individual sutures crosswise to remove the gap on the side, at least a twist interval of 40 PPI (peak per inch; twist per inch) It is possible to prevent the needle from protruding to the outside through the twist interval by the pressure by minimizing the gap formed by the above. In addition, when weaving the twist interval to have a density of 100 PPI or more, since the individual sutures are overlapped in a multi-layer, the thickness is excessively increased, so that the inlet can be largely formed when the human body is inserted. It is preferable to use 100 PPI or less. (In the experimental example, when the twist was formed at the interval of 40 PPI or more, the needle could be prevented from protruding to the outside due to the left and right twist pressure on the inserted needle.)

In addition, the dense area 12 is formed to have a predetermined length in the rear end direction from the closed front end of the tubular suture, the sealing of the front end can be used in the bonding and fusion method according to various known techniques, preferably adhesive, heat It is made to be sealed by any one selected from fusion, ultrasonic welding. Here, in the heat fusion or ultrasonic fusion, it is preferable to minimize the fusion surface, and various kinds of known adhesives may be used, but preferably Loctide 4014 or Elvamid, which is harmless to the human body, is biodegradable. It is also possible to use an adhesive component that melts and fuses or bonds the material.

Thus, the cone-type shear portion 30 formed as a dense area and the side holes are removed is a structure surrounding the needle front that a large pressure is applied when combined with the needle 60, the needle penetrates the tubular suture side in the human skin insertion process Protrusion can be prevented.

The length of the cone type shear portion 30 is preferably formed to a length of about 20 to 40% of the total length of the tubular suture, and generally 5 ~ if considering the needle length because the tubular suture is used by mounting to the needle It is preferable to form within the length of 50 mm. Here, within 5mm, the length of the side that surrounds the needle front is short, so that the needle front can be separated from the cone-type front end by left and right shaking, and if it is 50 mm or more, the needle front can be prevented from being separated in the tubular suture, but the tubular suture Since there is a disadvantage in that the length of the mesh portion, which is an area communicating the inside and the outside, becomes short, it is preferable to form the length of the cone type front end portion within the above range.

On the other hand, the mesh portion 40 is formed by continuous weaving from the cone-type shearing portion 30, but formed in a mesh form with a looser twist interval than the cone-type shearing portion by communicating with the hollow portion and the outside of the human body after insertion of regeneration cells Inflow can be made easily.

It is preferable that the mesh area forming the mesh part has a twist interval of 10 to 60 PPI to facilitate the inflow of regenerated cell tissues. If you provide a twist interval of less than 10 PPI, it is difficult to maintain the inner hollow of the tubular suture due to a decrease in bearing capacity.If you provide a twist interval of more than 60 PPI, the gap between the sidewalls is narrow and it takes a long time for regeneration cells to enter the interior. It is preferable to provide in the said range. Wherein the twist interval of the 40 ~ 60 PPI range is a gap of the gap that the needle can not protrude, the twist interval of the mesh region and the dense region is formed to narrow the twist interval of the dense region, relatively the twist interval of the mesh region Can be woven to form loosely.

In addition, as shown in Figure 2, the cone type tubular suture 10 of the present invention, the rear end portion 50 to form a constant length in a dense area in the shear direction at the rear end may be further formed. The rear end portion 50, by densely forming the interval between the individual sutures of the end portion of the mesh portion 40 to prevent loosening, easy insertion of the needle 60 into the hollow portion 11 of the tubular suture (10). To be done.

The length of the rear end portion 50 is preferably formed to a length of about 20 to 30% of the total length of the tubular suture (10), and generally considering the needle length because the tubular suture is used by mounting to the needle It is preferable to form within the length of 5-40 mm. It is difficult to provide the anti-loosening effect of the twisted individual sutures within the 5mm, and since the length of the mesh portion, which is an area communicating with the inside and the outside of the tubular suture, is shortened, forming the length of the rear end portion within the above range. It is preferable.

The mesh unit 40 may be a mesh net loosely woven individual sutures, or a dense area and a mesh area are formed alternately repeatedly.

As shown in FIG. 3A, the mesh portion 40 is repeatedly formed by alternately forming the dense region 12 and the mesh region 13 in short sections. In this way, when the body is inserted into the human body, the internal pressure of the tubular suture 10 is applied to the entire outer surface of the tubular suture 10, and the relatively high density of the structural region 12 retains its original shape due to its high repulsive force against the internal pressure, but the mesh area 13 ) Has weak structural strength due to loose weaving.

Therefore, as shown in FIG. 3B, the outer surface of the mesh portion 40 in which the dense region 12 and the mesh region 13 are alternately formed is bent. The curved surface increases the contact area with the human tissue, and can increase the contact area, thereby delivering more stimulus to the human tissue, thereby promoting tissue regeneration. The bending of the mesh portion also provides a function of fixing the position of the inserted tubular suture.

The dense area 12 and the mesh area 13 may be woven from individual sutures of different strands.

The dense area 12 is woven with 8, 12, 16, and 24 individual sutures, and the mesh area 13 is woven with 4, 6, 12 strands of individual sutures. You can weave mesh areas with different number of strands.

Here, the dense area 12 may supply short length individual sutures to increase the number of strands, thereby densely forming twist intervals, but in order to provide continuity, in the dense area, all the individual sutures participate in the weave, and the buckling area In the case, only a part of the individual sutures can participate in the weaving to control the twist interval in the two areas.

That is, as shown in FIG. 4, the participant individual suture 21 that participates in the weaving of the dense area but does not participate in the weaving of the mesh area is included in the weave of the dense area and the mesh area in the mesh area between the two dense areas. It is arranged in the longitudinal direction of a straight line along the outer surface of the continuous participant individual suture 22 to participate in all can connect the two dense areas of both sides of the mesh area to ensure continuous weaving without thread break.

Therefore, when only the cone-type front end and the rear end portion are formed into the dense area without the dense area in the mesh part as shown in FIG. 2, the participant individual sutures that do not participate in the weaving of the mesh part are continuously participating individual sutures participating in the weave of the mesh area. It extends in the longitudinal direction along the outer surface so that continuous weaving is achieved.

In addition, even in the case of the tubular suture 10 in which the dense area 12 and the mesh area 13 are formed several times as shown in FIG. 3A, in the mesh area, the partial participation individual sutures 21 continuously form the outer surface of the individual participation sutures 22. As a result, it is arranged in the longitudinal direction so that both the participant suture and the participant suture are continuous.

As described above, as the material of the tubular suture 10, the biodegradable material is used to form a temporary skin regeneration space and then decomposed or removed, or the non-biodegradable material is incorporated into the skin with the regenerated skin to form a volume. And it can be used to provide a pulling force, or to mix the biodegradable material and non-biodegradable material.

As the biodegradable material, polyglycolide acid (Polyglycolic acid, PGA), polyglycol (Polyglactin, PGLA), polydioxanone (Polydioxanone, PDO), polyglycolide-co-caprolactone (Poly (glycolide-co -caprolactone, PGCL), poly L-lactic acid (PLLA), polylactic acid (PLA), polycaprolactone (PCL), hyaluronic acid (HA), gold knitting (Gold weaving), chitosan (Chitosan) may be used to select a single polymer or a copolymer of two or more selected from the group consisting of one or two or more.

In addition, as a non-biodegradable material, it can select and use 1 type (s) or 2 or more types from nylon, polypropylene, polypropylethylene, Teflon, and silicone.

5A and 5B, the needle assembly 100 according to the present invention is provided with a tubular suture 10 having the dense area and the mesh area mounted on the needle 60. That is, in order to use the tubular suture 10 of the present invention, the operation of fitting the tubular suture 10 to the needle 60 should be performed, but since such operations are not easy in the field, the tubular suture 10 is the needle 60. It may be provided in the form of a needle assembly (100) pre-mounted.

The needle 60 is inserted into the hollow portion 11 of the tubular suture 10 from the front end, and is mounted in the form of wrapping the tubular suture on the outer surface of the needle, and the rear end of the needle 60 is supported by the needle support 70.

The needle support 70 serves as a handle to hold the needle when injecting the human body, or by forming an engaging portion on the inner surface of the needle support, and additionally equipped with an injector such as a syringe to easily inject drugs or inject the necessary ingredients for skin regeneration. I can lose it. The coupling portion may protrude in an annular shape to the inner surface of the needle supporter to be fitted with the injector or to be coupled by a screw thread. In this way, when the drug is injected into the hollow portion of the tubular suture 10, the tubular suture acts as a reservoir for storing the injected drug for a predetermined time, thereby slowly transferring the drug to the outside to promote tissue regeneration of a specific site or to concentrate the drug. Treatment can be done.

In addition, a variety of known needles may be used. Preferably, any one of needles having a blunt R-Blunt, L-Blunt, W-Blunt, A-Blunt, Sharp cannula may be used. will be.

10: tubular suture
11: hollow part
12: dense area
13: mesh area
20: individual suture
21: Participation Individual Suture
22: continuous participation individual suture
30: cone type front end
40: mesh part
50: trailing edge
60: needle
70: needle support
100: needle assembly

Claims (12)

In the tubular suture having a hollow portion manufactured by twisting a plurality of individual sutures crosswise,
The front end is closed, and the cone-type front end 30 having a cone shape by forming a dense area by narrowing the interval between the individual sutures 20 so that a gap is removed from the closed front end at a predetermined length in the rear end direction;
Cone type characterized in that it comprises a; continuous meshing with the cone type front end portion 30, the mesh portion 40 to communicate the inside and outside by the gap created in the side by forming a mesh region loosening the weaving spacing; Tubular sutures. The method of claim 1,
The rear end of the mesh portion 40 is a cone-type tubular suture, characterized in that the rear end finishing portion 50 is further formed to form a predetermined length in the shear direction to prevent the loosening of the individual sutures. The method of claim 1,
The individual suture twist interval of the dense area is a cone type tubular suture, characterized in that formed by 40 ~ 100 PPI (peak per inch). The method of claim 3,
Shear closure of the cone type front end portion, characterized in that the cone type tubular suture made of any one selected from the adhesive, thermal fusion, ultrasonic welding. The method of claim 3,
The cone type shear portion 30 is a cone type tubular suture, characterized in that formed in the length of 5 ~ 50mm. The method of claim 3,
The dense area 12 and the mesh area 13 is a cone-type tubular suture, characterized in that the number of individual sutures participating in the weaving formed differently. The method of claim 6,
Participating individual suture 21 which participates in the weaving of the dense area and does not participate in the weaving of the mesh area is a continuous participant individual suture that participates in both the dense area and the weaving of the mesh area in the mesh area between the two dense areas. Cone type tubular suture, characterized in that arranged in the longitudinal direction of the straight line along the outer surface of 22) to connect the two dense areas on both sides of the mesh area to form a continuous weave without thread break. The method of claim 3,
The mesh portion 40 is a cone-type tubular suture characterized in that the dense area and the mesh area is configured to be formed repeatedly. The method of claim 8,
The dense region 12 and the mesh region 13 is a cone type tubular suture, characterized in that the number of individual sutures participating in the weaving formed differently. The method of claim 9,
Participating individual suture 21 which participates in the weaving of the dense area and does not participate in the weaving of the mesh area is a continuous participant individual suture that participates in both the dense area and the weaving of the mesh area in the mesh area between the two dense areas. Cone type tubular suture, characterized in that arranged in the longitudinal direction of the straight line along the outer surface of 22) to connect the two dense areas on both sides of the mesh area to form a continuous weave without thread break. The method of claim 1,
The individual suture 20,
Polyglycolic acid (PGA), polyglycotin (Polyglactin, PGLA), polydioxanone (PDO), polyglycolide-co-caprolactone (PGCL), Poly L-lactic acid (PLLA), Polylactic acid (PLA), Polycaprolactone (PCL), Hyaluronic acid (HA), Gold weaving, Chitosan ( Chitosan) biodegradable material group consisting of a single polymer selected from the group consisting of two or more polymerized copolymers; A non-biodegradable material group consisting of nylon, polypropylene, polypropylethylene or teflon, and silicone; Cone type tubular suture having any one of claims 1 to 11;
A needle 60 inserted into the hollow portion of the cone type tubular suture;
And a cup support needle support (70) having an engaging portion coupled to the injector on the inner surface of the opened rear end while being integrally coupled to the rear end of the needle to support the needle.

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