KR101965730B1 - Suture manufacturing method and the suture - Google Patents

Abstract

The present invention relates to a method for manufacturing a suture and a suture manufactured thereby. More particularly, the present invention relates to a method for manufacturing a suture by partially blanking a plurality of cylindrical sutures without being squeezed to form a barb, and to a suture manufactured thereby. The method for manufacturing a suture according to an embodiment of the present invention comprises a step of forming a barb by partially blanking the cylindrical raw material sutures by punching of a punching mold comprising an upper mold and a lower mold, wherein the cylindrical raw material sutures are rotated at a predetermined angle and blanked to form a plurality of barbs.

Description

[0001] SUTURE MANUFACTURING METHOD AND THE SUTURE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a suture production method and a suture, and more particularly, to a suture production method for forming a barb by partially blanking a plurality of cylindrical sutures without squeezing the sutures.

Suture in surgery is important for a variety of reasons.

Sutures performed on patients with facial skin or torn mucous membranes or for cosmetic purposes are a complete surgery in and of itself.

Also, performing sophisticated and cosmetically good sutures is an important factor in deciding the success or failure of surgery.

Sutures have long been used for the connection or suturing of injured muscles, blood vessels, nerve tissue or wound or surgical incision. It is also used for treatment for removing tissue, skin sagging, and wrinkles caused by double eyelid surgery, aging, skin elasticity reduction, trauma, overuse, necrosis and the like.

For example, a lifting procedure using a suture is a technique of pulling a stretched skin and tissue such as a face, a chin, a neck, a stomach, a vagina, a breast, It is possible to minimize the incidence of scarring and to receive the spotlight due to the bleeding or swelling caused by the operation.

Natural sutures and synthetic sutures can be used for these sutures, and they have absorbent and non-absorbable properties depending on the material.

Recently, sutures with barbs on the outer surface of suture have been developed and used.

Thus, the suture formed with the barb on the outer surface has the property of not slipping by the barb, so that it does not melt after the suture.

A method of manufacturing the barbed suture is disclosed in the prior patent document No. 10-1642962.

The prior art includes a first step of heating the suture raw material at a set temperature condition, a second step of press-molding the heated suture raw material, and forming a cutting line at the first and second edges of the formed suture press- And forming a barb by applying a tensile force to the suture compression-molded product formed with the cutting line, wherein the cutting line is inclined at a predetermined angle toward one or both directions of the first and second edges So as to be continuously formed with a predetermined spacing therebetween.

1a to 1c show a suture fabricated according to the prior art, wherein Fig. 1a shows a suture made of a first barb 11 and a second barb 12 on both sides of a central portion 13, And the first barb 11 and the second barb 12 are connected to each other by a central portion 13 and the barb is formed such that its end is directed toward the central portion.

1B and 1C show a first barb 11 and a second barb 12 and a central portion 13 connecting the first barb 11 and the second barb 12, And the end portion is formed to face the center portion direction, and the hole portion 14 is formed.

Fig. 1B shows a suture 10 in which a hole 14 is formed in a central portion 13 and Fig. 1C shows a suture in which a hole 14 is formed in barbs 11 and 12.

However, in the conventional suture manufacturing method as described above, the suture raw material is heated and pressed at a set temperature condition, and the barbed portion is formed by applying a tensile force to the suture squeeze formed with the cutting line. A preheating portion, a pressure roller portion, and a die cut mold portion.

Registration No. 10-1642962 (registered on July 20, 2016)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to shorten the manufacturing process by forming a barb by partially blanking a cylindrical suture with a single punching mold while rotating a predetermined angle without heating, And to provide a suture thread manufacturing method and a suture thread which can simplify a manufacturing apparatus since only a punching mold can be provided.

According to another aspect of the present invention, there is provided a method of manufacturing a suture including: forming a barb by squeezing a portion of a cylindrical suture material by punching a punching die including an upper mold and a lower mold, And a plurality of barbs are formed by rotating while rotating at a predetermined angle.

The upper mold may be provided with a punch for punching one side of the cylindrical raw sewing thread, and four barbs may be formed in four directions of the suture while being rotated four times at 90 degrees in place.

The upper mold may be provided with a punch for tapping both sides of the cylindrical suture, and the suture may be formed by four turns at four sides of the suture while being rotated twice by 90 degrees at the same position.

The upper mold is provided with a punch for punching both sides of the cylindrical raw sewing thread, and two barbs formed to be opposed to each other while being rotated by 90 degrees while being moved at predetermined intervals after the first punch are repeatedly formed at intervals of 90 degrees .

When the cylindrical raw sewing suture is viewed from a plane, the suture is horizontally arranged in the front and back, and the left and right sutures are tilted at mutually different angles.

A suture according to an embodiment of the present invention is a suture manufactured by the above-

Four barbs are formed in each of the four sides, and the distal ends of the barbs are oriented toward the center and the rear ends are thinner toward the back.

A suture according to an embodiment of the present invention is a suture manufactured by the above-

Two barbs facing each other are repeatedly formed at intervals of 90 degrees, and the tip of each barb is oriented toward the center, and the thickness of the rear end is thinner toward the back.

According to the means for solving the above-mentioned problem, the cylindrical suture is heated and partially squeezed with a single punching die while rotating at a predetermined angle in a state where the suture is not pressed, thereby forming the barb, thereby shortening the manufacturing process and simplifying the manufacturing apparatus .

According to the means for solving the above-mentioned problems, since the barbs are formed in three dimensions on all sides of the cylindrical suturing thread, they can be more firmly held and fixed at the treatment site and effectively hold the tissue and have excellent sealing, supporting or fixing effect.

FIGS. 1A to 1C are views showing various examples of sutures by a conventional manufacturing method.
2 is a plan view schematically showing a punching die used in the manufacturing method of the present invention.
3 is a flowchart showing an example of a manufacturing method according to the present invention.
4A to 4D are views showing sutures according to the manufacturing process of FIG.
5A and 5B are views showing sutures according to the manufacturing method of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

It is to be noted that the same components of the drawings are denoted by the same reference numerals and symbols as possible even if they are shown in different drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

2 is a plan view schematically showing a punching die used in the manufacturing method of the present invention.

The punching mold 200 includes an upper mold 210 and a lower mold 220. The upper mold 210 and the lower mold 220 are provided with blanking portions 212 and 222 corresponding to each other.

In the middle of the blankets 212 and 222, semicircular openings are opened upward and downward along the longitudinal direction, and a cylindrical raw sewing thread 100 is positioned.

A plurality of punches (not shown in the longitudinal direction) are provided at predetermined intervals in the blanking portion 212 of the upper mold where the raw suture is located, and the one side of the cylindrical raw suture 100 is punched by punching.

At this time, the raw suture 100 is rotated three times by 90 degrees from the first place after the first squeezing, so that four barbs 104 can be formed at an interval of 90 degrees in four directions (see FIG. 5A).

In addition, a plurality of punches (not shown on both sides in the longitudinal direction) are provided at predetermined intervals in the blanking portion 212 of the upper mold where the raw suture is located, and the both sides of the cylindrical raw suture 100 can be punched by punching.

In this case, the raw suture 100 may be formed by rotating the raw suture 100 by 90 degrees once after being punched for the first time, thereby forming four barbs at intervals of 90 degrees on the suture (see FIG. 5A) And the two barbs 104 are arranged to face the suture 180 by 180 degrees (see FIG. 5B).

The guide hole 224 is formed in the lower mold 220 so that the upper mold 210 can always be punched at the same position.

3 is a flowchart showing an example of a manufacturing method according to the present invention.

First, the cylindrical raw suture 100 is inserted into the blanking portions 212 and 222 of the punching mold 200 and then the punch of the upper mold 210 is punched to firstly punch one side of the cylindrical raw suture 100, 104 are formed at predetermined intervals (S20).

At this time, the shape of the space 102 of the first punched portion is horizontally parallel to the front and rear in the plan view, and the left and right sides are inclined at different angles, that is, a substantially deformed parallelogram.

At this time, the distal end portion of the barb 104 is directed toward the center, and the thickness of the rear end portion decreases toward the back, and penetration into the skin tissue is easy.

FIG. 4A shows the shape of the raw suture 100 firstly punched in this manner, that is, the barbs 104 are formed on one surface of the raw suture.

And then the punch of the upper mold 210 is punched to rotate the barrel suture 100 in the first place and then punch the other side of the cylindrical suture 100 in a second order, (S22).

At this time, the space shape of the second punched portion 102 is horizontally aligned in the front and rear in the plan view, and the left and right are inclined at different angles, that is, a substantially deformed parallelogram.

At this time, the distal end portion of the barb 104 is directed toward the center, and the thickness of the rear end portion decreases toward the back, and penetration into the skin tissue is easy.

FIG. 4B shows that the barbs 104 are formed on the two sides of the raw sewing suture, that is, the raw suture 100 that has been punched out in the above-described manner.

And then punches the punch of the upper mold 210 to punch the other side of the cylindrical raw sewing thread by punching the other side of the cylindrical raw suture by a third punch so that the barb 104 is rotated at a predetermined interval (S24).

At this time, the shape of the third punched portion 102 is horizontally aligned with respect to the front and rear in a plan view, and left and right are inclined at different angles, that is, a substantially deformed parallelogram.

At this time, the distal end portion of the barb 104 is directed toward the center, and the thickness of the rear end portion decreases toward the back, and penetration into the skin tissue is easy.

FIG. 4C shows the shape of the raw suture 100 that has been thirdly punched in this manner, that is, the barbs 104 are formed on three sides of the raw suture.

The punch of the upper mold 210 is punched by turning the third punched cylindrical raw material suture 100 by 90 degrees again, and the remaining one side of the cylindrical suture suture is punched fourth by a predetermined distance (S26).

At this time, the spatial shape of the fourth punched portion 102 is horizontally aligned in the front and rear in the plan view, and the left and right are inclined at different angles, that is, a substantially deformed parallelogram.

At this time, the distal end portion of the barb 104 is directed toward the center, and the thickness of the rear end portion decreases toward the back, and penetration into the skin tissue is easy.

FIG. 4D shows that the suture is formed on the four sides of the raw suture, that is, the shape of the raw suture knitted in the fourth order.

5A and 5B are views showing sutures according to the manufacturing method of the present invention.

The suture 100 shown in Fig. 5A is, for example, a suture manufactured by the manufacturing process of Fig.

In the suture 100 of FIG. 5A, the cylindrical suture thread is punched at intervals of 90 degrees so that the barbs 104 are formed in four directions. At this time, the distal ends of the respective barbs 104 are oriented toward the center and the rear end is thinner toward the back.

When the surgical site is sutured with the suture 100 of the above-described construction, the barbs 104 formed in four directions support the suture 100 in a non-slip manner on the tissue of the treatment site, so that the suture 100 is firmly fixed .

5B is a state in which a plurality of punches (not shown) are formed at predetermined intervals on both sides in the lengthwise direction of the upper blanking portion 212. After the first squeeze, the raw suture is rotated by 90 degrees Suture manufactured.

The suture 100 shown in FIG. 5B is formed such that two barbs 104 are formed at intervals of 90 degrees along the longitudinal direction of the suture 100. The distal ends of the barbs 104 are oriented toward the center, The thickness becomes thin.

When the surgical site is sutured with the suture 100 of the above-described construction, the barbs 104 repeatedly formed at intervals of 90 degrees while facing each other support the suture 100 to the tissue of the treatment site without slipping, As shown in Fig.

In the above drawings, the suture 100 is drawn in an exaggerated shape, but it is actually elongated and long, and the leading end 104 of the barb is also sharp and sharp.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

100: Suture 102: Patch site
104: barb 200: punching mold
210: upper mold 220: lower mold

Claims (7)

Wherein a plurality of barbs are formed by punching a part of the cylindrical raw suture by punching a punching mold composed of an upper mold and a lower mold to form a barb, . The method according to claim 1,
Wherein the punch for punching one side of the cylindrical raw sewing suture is provided on the upper mold, and the suture is formed while rotating four times by 90 degrees from the side to form four barbs on all sides of the suture. The method according to claim 1,
And a punch for tapping both sides of the cylindrical raw sewing suture is provided on the upper mold so that four barbs are formed on four sides of the suture while being rotated twice by 90 degrees in place. The method according to claim 1,
And a punch for punching both sides of the cylindrical raw sewing suture is provided on the upper mold, and two barbs formed to face each other while being rotated by 90 degrees while being moved at predetermined intervals after the first punch are repeatedly formed at intervals of 90 degrees. Suture. 5. The method according to any one of claims 1 to 4,
Wherein when the cylindrical raw sewing suture is viewed from a plane, the suture is formed so as to have a space horizontally arranged in the front and back and a shape inclined at different angles to the left and right. 15. A suture made according to claim 1,
Wherein four barbs are formed in each of the four directions, and the distal ends of the barbs are centered and the rear end of the barbs are thinner toward the back. 15. A suture made according to claim 1,
Wherein two barbs opposed to each other are repeatedly formed at intervals of 90 degrees, the distal end of each barb is oriented toward the center, and the rear end is thinner toward the back.

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