WO2011034286A2

WO2011034286A2 - Surgical suture thread

Info

Publication number: WO2011034286A2
Application number: PCT/KR2010/005421
Authority: WO
Inventors: 유원식
Original assignee: Yoo Won Sick
Priority date: 2009-09-17
Filing date: 2010-08-17
Publication date: 2011-03-24
Also published as: KR101043179B1; KR20110030060A; WO2011034286A3

Abstract

The invention relates to surgical suture thread for binding together human or animal tissue, comprising a core filament (100) and an anti-slip outer filament (200) wound into a spire in the lengthwise direction of the core (100) and fixed at the core (100). The anti-slip outer filament (200) comprises an attaching portion (210) which tightly contacts an outer surface of the core (100), a slip portion (220) for enabling the suture thread to pass through the tissue in the direction of penetrating the tissue, and a withdrawal prevention portion (230) for preventing the suture thread from withdrawing in the direction opposite to the direction of penetrating the tissue.

Description

Surgical Suture

The present invention relates to a surgical suture, and more particularly to a structure including a core wire and a non-slip outer wire that is spirally wound along the longitudinal direction of the core wire is fixed to the core wire.

In the medical field, sutures are made using various kinds of surgical sutures for sutures of wounds and surgical incisions, and needle-attached sutures in which needles and sutures are integrated are commonly used as surgical sutures.

Typically, the stitched suture is pulled to form one or more knots that attach the suture to the posterior end of the needle and the needle penetrates through the tissue to bond the incision site, such that the incision tissue is pulled together and held together. The knots are continuously formed and tied together.

Surgical suture can be divided into single strand of single fiber (Monofilament) suture and multifilament formed of multiple strands, depending on the manufacturing method and shape. It can be formed smoothly to minimize the damage of the tissue to be sealed and there is an advantage that can shorten the suture time.

When suture is made using short-fiber sutures, even if the suture penetrates the suture through the smooth surface, the suture retreats in the opposite direction to the penetrating direction so that the suture becomes wider unless the suture is pulled in the penetrating direction. The suture knot should be tied while keeping the suture pulled.

In addition, all sutures require one or more knots that are tied together to hold the sutures in place, and tying the suture knots requires mastery skills and takes up most of the time in the surgical procedure. It is very difficult to form itself.

Therefore, in order to overcome the above problems of the smooth short-fiber sutures, barbs are formed to prevent slipping of the short-fiber sutures in the tissue to be sutured to maintain smoothness in the direction in which the needle is inserted and in the opposite direction. Techniques for preventing the suture from opening easily are known so that they do not move well.

As disclosed in U.S. Patent No. 5,931,855, surgical sutures having barbs formed on short fiber sutures are used in various plastic surgery, including eyebrow or wrinkle plastic surgery, to maintain the sutures while pulling in a certain direction.

However, in the case of the barbed suture, a method of forming barbs on short fibers is complicated, and the sutures of a certain thickness or more are required to form barbs.

In the case of twisted sutures, the surface is rougher than the short-fiber sutures, so it is relatively less likely to retreat after penetrating the tissue during suture surgery.However, compared to barbed sutures, the suture is less resistant to retraction. There is not enough problem to effectively suture surgery.

In addition, the twisted suture has a disadvantage that the damage of the tissue is greater than the short-fiber suture because the surface is not smooth even in the direction in which the suture penetrates.

The present invention has been made in view of the above-mentioned point, the suture is not easily retracted in the opposite direction penetrated through the tissue during suture surgery is easy to manufacture the knot bundle of suture can be easily manufactured to improve productivity The purpose is to provide a surgical suture.

Surgical suture according to the present invention for achieving the technical problem, in the surgical suture for suturing the tissue of a human or animal, the core wire 100 and the spiral wound along the longitudinal direction of the core wire 100 is It includes a non-slip outer line 200 is fixed to the core wire 100, the non-slip outer line 200 is in close contact with the outer surface of the core wire 210, the suture passes through the tissue in the direction Slip 220 and for the suture is characterized in that it comprises a retraction prevention portion 230 for preventing the retreat in the opposite direction to penetrate the tissue.

In addition, the sliding part 220 may be formed with a coating layer 240 for smoothly maintaining the surface of the sliding part 220.

In addition, the core wire 100 may be characterized in that the sliding adjustment outer line 300 is wound together with the non-slip outer line 200.

Further, the non-slip outer line 200 and the slip control outer line 300 may be alternately wound along the core line.

Surgical suture according to the present invention made as described above can be easily tied to the suture knot during surgery because the anti-slip outer wire is wound around the core wire and the suture does not slide well in the opposite direction to penetrate after penetrating the tissue to be sutured. .

Further, unlike conventional barbed sutures, the suture of thin sutures can be implemented to suppress the retreat of the sutures, and the suture is relatively easy to manufacture by winding an anti-slip line.

In addition, since a smooth coating layer may be formed on the sliding portion of the non-slip outer line, the suture can easily pass through the tissue to be sealed in a direction penetrating the tissue.

Furthermore, in the case of winding the non-slip outer line and the non-slip adjustment line, there is an effect that can easily adjust the degree of slip of the suture by adjusting the ratio of each winding.

1 is a perspective view schematically showing a surgical suture according to an embodiment of the present invention.

Figure 2 is a perspective view for explaining the structure of the surgical suture according to an embodiment of the present invention.

Figure 3 is a cross-sectional view for explaining the three-dimensional shape of the surgical suture according to an embodiment of the present invention.

Figure 4 is a cross-sectional view for explaining the three-dimensional shape of the anti-slip outer line of the surgical suture according to an embodiment of the present invention.

Figure 5 is a cross-sectional view for explaining a sliding portion of the anti-slip outer line of the surgical suture according to an embodiment of the present invention.

Figure 6 is a perspective view schematically showing a surgical suture according to another embodiment of the present invention.

Figure 7 is a cross-sectional view for explaining the three-dimensional shape of the surgical suture according to another embodiment of the present invention.

Figure 8 is a perspective view schematically showing a surgical suture according to another embodiment of the present invention.

Figure 9 is a cross-sectional view for explaining the three-dimensional shape of the surgical suture according to another embodiment of the present invention.

10 is a perspective view for explaining a method of manufacturing a surgical suture according to an embodiment of the present invention.

11 is a view for explaining an example of the use of the surgical suture according to an embodiment of the present invention.

(Explanation of symbols for the main parts of the drawing)

100; Core wire 200; Anti-slip line

210; Tight contact portion 220; Slip

230; Retraction prevention unit 240; Coating layer

300; Slip adjustment outer line 400; Surgical needle

Advantages and features of the present invention, and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. Hereinafter, a surgical suture according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 3, the surgical suture according to an embodiment of the present invention along the longitudinal direction of the core wire 100 and the core wire 100 in the surgical suture for suturing the tissue of a human or animal Spirally wound to include a non-slip outer line 200 is fixed to the core wire 100, the non-slip outer wire 200 is in close contact with the outer surface of the core wire 210, the suture penetrates the tissue Slip portion 220 for passing in the direction and the suture is characterized in that it comprises a retraction prevention portion 230 for preventing the retraction in the direction opposite to the direction penetrating the tissue.

The core wire 100 is generally composed of monofilaments of monofilament, and may be various types of short fibers or twisted multifilaments in a range having appropriate elasticity and rigidity.

2 and 3, the non-slip outer line 200 is wound tightly around the core wire 100 in the form of a coil so that the suture has a shape similar to that of other strings.

Looking in detail with reference to the cross-section of the anti-slip outer line 200 with reference to Figure 4 (a), the anti-slip outer line 200 is wound around the core wire 100 to prevent the suture from slipping in one direction A close contact portion 210 that is closely attached to the outer surface of the core wire, the sliding portion 220 for passing the suture in the direction penetrating the tissue and the suture is prevented from retreating in the opposite direction to the direction penetrating the tissue It includes a retraction prevention unit 230 to.

Therefore, the surgical suture according to an embodiment of the present invention is different in the shape of the surface from one end to the other end direction and the other end to one direction, and the forward direction to smoothly pass through the main contact with the sliding portion 220 when penetrating the tissue and The retraction prevention portion 230 is in contact with the reverse direction is relatively smooth through.

As shown in (a) to (d) of FIG. 4, the cross-section of the anti-slip outer line 200 may have various shapes such as a wedge shape and a triangle, and generally has a shape similar to a right triangle as shown in FIG. The bottom surface of the right triangle becomes the close contact portion 210 and the oblique surface of the right triangle becomes the sliding portion 220, and the vertical surface of the right triangle serves as the retreat prevention portion 230.

The non-slip outer line 220 surrounds the periphery of the core wire 100 and forms the surface of the surgical suture according to an embodiment of the present invention, so that the cross-sectional shape of the non-slip outer line 220 is the surface of the surgical suture. It is the biggest factor in determining the roughness of.

For example, as shown in (b) of FIG. 4, the sliding part 220 of the non-slip outer line 200 has a low angle formed by the close contact part 210 closely contacting the core line 100, thereby preventing the non-slip outer line 200. If the cross section of the wedge shape, the suture penetrates more smoothly when penetrating and the height of the retreat prevention portion 230 is lowered, so that the function of suppressing the retraction of the suture becomes weak.

Therefore, the inclination of the sliding portion 220 and the height of the protrusion of the retreat prevention unit 230 are variously changed depending on the surgical site or the type of surgery in which the suture is used, and various surgical sutures varying in suppressing the retraction of the suture. Can be provided.

Since the cross section of the non-slip outer line 200 should be a certain form including the contact portion 210, the slip portion 220 and the retreat prevention portion 230, the non-slip outer line 200 is generally made of a synthetic resin material It may consist of a monofilament having a constant cross section to be molded.

In addition, the material of the non-slip outer line 200 may be made of various materials in a range capable of maintaining a constant cross-section, if the fiber material such as silk may also be used as the anti-slip line 200 if it has a certain roughness.

Furthermore, in order to be able to move more smoothly in the forward direction within the suture suture according to the present invention, the surface of the sliding portion 220 of the non-slip outer line 200 that is most in contact with the tissue when the suture penetrates It needs to stay smooth.

Referring to FIG. 5, the sliding part 220 may be formed with a coating layer 240 in which a coating material is applied to maintain a smooth surface, and the coating material is applied to a conventional absorbent surgical suture Polyglactin 910. Polyglactin 370 (glycolide 30%, lactide 70% and calcium stearate) can be used.

In addition, the coating material forming the coating layer 240 is not only Polyglactin 370 but also applied to the suture according to the material of the anti-slip outer line 200 to perform a function of having a smooth surface in a range such as polybutylate or silicone and various other coating materials Can be applied.

Since the coating layer 240 functions to smooth the surface, the coating layer 240 is formed only on the sliding portion 220 of the non-slip outer line 200, and the coating layer 240 is not formed on the contact portion 210 and the retreat prevention portion 230. Would be most desirable.

In addition, similar to forming the coating layer 240 to keep the surface smooth on the sliding part 220, the retreat prevention part 230 may enhance the function of reducing the retraction of the suture by forming a coating layer to roughen the surface. have.

6 to 9, the core wire 100 may be wound together with the non-slip outer line 200 and the sliding line 300.

Unlike the cross-section of the non-slip outer line 200, the sliding adjustment outer line 300 does not have a sliding portion 220 and the retreat prevention portion 230 having a non-slip function, and generally has a circular cross section.

Therefore, the slip adjustment outer line 300 is not the same as the retraction prevention unit 230 is formed in the reverse direction of the suture like the anti-slip line 200, even if the winding around the core wire 100, so that the slip adjustment outer line ( When winding together with the 300, the function of retracting the suture in the reverse direction is weak compared to the winding of the periphery of the core 100 only with the outer wire 300 for sliding control.

When the non-slip outer line 200 and the non-slip adjustment line 300 is wound together, in general, the non-slip line 200 and the non-slip line 300 is wound at an alternating rate and alternately wound in all sections of the suture. It would be desirable to have a constant roughness.

In addition, the frequency of the non-slip outer line 200 and the non-slip adjustment line 300 is wound on the core wire 100 may be adjusted according to the purpose of use, the frequency of the winding of the non-slip adjustment line 300 is non-slip line 200 The higher the winding ratio of), the weaker the ability to prevent retraction of the suture.

Referring to FIGS. 8 and 9, the non-slip outer line 200 is wound once when the non-slip outer line 300 is wound twice, so that the anti-retraction function is weaker than in the case of FIG. 6 alternately winding. Can be.

Hereinafter, a method and a manufacturing method of the surgical suture according to an embodiment of the present invention will be described in detail.

Referring to Figure 10, the surgical suture according to an embodiment of the present invention in close contact with the non-slip outer line 200 from one end to the other end in the longitudinal direction of the core wire 100 around the core wire 100 ( 210 is in a spiral shape while being in close contact with the core 100.

In general, one end of the core wire 100 and one end of the non-slip outer line 200 is fixed and the core wire in the other end to keep the core wire 100 taut and to wind the non-slip outer line 200 to the core wire 100 The method for manufacturing a surgical suture by rotating the core wire 100 in a pulled state to form an angle of less than 90 degrees with the (100) is wound tightly spirally along the circumference of the core wire Can be presented.

In addition, even when the non-slip outer line 200 and the non-slip adjustment line 300 is wound together, as shown in the drawing is combined with the core line 100 and one end and the core 100 is rotated to prevent the slip line 200 and the non-slip adjustment line 300 can be manufactured by alternately winding together.

In addition, within the range capable of forming the structure of the surgical suture of the present invention, a fiber yarn manufacturing method using a variety of other known fibers may be applied.

Referring to Figure 11, the surgical suture according to an embodiment of the present invention has a roughness of the surface is different from one end in the other end direction and the other end in one direction has a forward and reverse direction.

Therefore, in the suture operation, the surgical needle 400 is coupled to one end of the surgical suture forward with the forward direction, the needle penetrates the tissue to be sutured and the suture coupled with the needle penetrates the tissue along the needle The direction of the coincidence coincides with the smooth forward direction.

In addition, since the suture once passed through the suture tissue has a reverse direction in the opposite direction to the penetration direction, the suture penetrating the tissue is not easy to retreat, it is easy to tie the knot during suture surgery.

Since the cross-section of the non-slip outer line 200 has a plurality of shapes, it can provide a variety of types of surgical sutures varying in the degree of protrusion of the anti-retraction unit 230 protruding from the core line according to the shape, surgery type and suture The optimal suture is possible by selecting a suitable surgical suture according to the nature of the tissue to be treated.

Furthermore, as described above, when the non-slip outer line 200 and the non-slip adjusting line 300 are wound together on the core wire 100, the smoothness of the surgical suture may be adjusted according to the winding frequency of the non-slip outer line 200. Therefore, it is possible to provide a variety of surgical sutures.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. will be.

Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following detailed description, and the scope and meaning of the claims And all changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

The present invention can be applied to medical instruments such as surgical sutures for use in human or animal procedures.

Claims

In a surgical suture for suturing tissue of a human or animal,

Core wire 100; And

It includes a non-slip outer line 200 is spirally wound along the longitudinal direction of the core wire 100 is fixed to the core wire 100,

The non-slip outer line 200,

A close contact portion 210 in close contact with the outer surface of the core wire;

A sliding part 220 for allowing the suture to pass through the tissue; And

Surgical suture, characterized in that it comprises a retraction prevention unit 230 for preventing the suture retreating in the direction opposite to the direction penetrating the tissue.
The method of claim 1,

Surgical suture, characterized in that the sliding portion 220 is formed with a coating layer 240 to keep the surface of the sliding portion 220 smoothly.
The method of claim 1,

Surgical suture, characterized in that the core wire 100 is a sliding outside wire 300 is wound along with the anti-slip line 200.
The method of claim 3, wherein

Surgical suture, characterized in that the non-slip outer line 200 and the sliding adjustment outer line 300 is alternately wound along the core line.