KR101473695B1 - Lifting appratus having suture thread - Google Patents

Abstract

The present invention relates to a lifting device having suture thread and, specifically, a lifting device having suture thread which pulls and supports skin. More specifically, the lifting device having suture thread comprises a pipe-shaped needle; and suture thread which is inserted in the needle and has a plurality of protrusions on the outer surface wherein the protrusion is processed by lasers. In particularly, the suture thread comprises a forward protrusions protruded toward a first direction; and a first protrusion part having a backward protrusion toward a second direction which is the reverse direction of the first direction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lifting apparatus having a suture,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a suture, and more particularly, to a lifting suture that pulls and supports the skin.

In general, wrinkle removal is most frequently performed with face lift, and various treatment methods have been available. The oldest method has been 'Facial Lift', which pulls the skin up and removes the extra skin and stitches the skin. However, this operation is more dangerous than the quick effect. In addition, scars can be left in the forehead and forehead line, and the recovery period is also about six weeks, so it is not a surgical operation to choose. In addition, since the aged skin is intact, the wrinkles continue to progress, and the skin becomes thinner and the aging progresses faster.

Many methods have been tried for a long time to minimize scar and tissue incision in the removal of wrinkles such as facial lift. Recently, facial wrinkle removal through sutured sutures has been attempted.

Korean Registered Utility Model No. 0351894, Korean Published Patent Application No. 2005-0108494, Korean Published Patent Application No. 2005-0074342, US 2005/0203576, US 2005/0240224, US 2005/0267532, International Patent Application (PCT) WO2005096956, and International Patent Application WO2005096955 disclose several sutures for wrinkle removal procedures.

All of these sutures are formed with protrusions on the outer surface of the suture, and these protrusions tightly engage with the dermis and skin muscles in the skin, pulling the skin and restoring skin elasticity.

Since these sutures enter the skin and induce the production and accumulation of collagen, which constitutes the elasticity of the skin, the wrinkled portion and the elongated skin after the surgery are improved and the secondary effect is obtained in that the skin texture becomes stronger and moisturized and elasticity is restored have.

However, since conventional sutures form protrusions by cutting, the thickness of the protrusions becomes thinner and the tensile strength of the product becomes much weaker than that of the product before the protrusions are formed.

In particular, the thicker the projection, the weaker the strength of the suture. If the cutting is performed using the blade, the tensile strength of the suture can be weakened by the uneven cutting. Even if cutting is performed using a laser, when the cross section of the suture is formed as a partial ellipse, there arises a problem that the tensile strength of the suture is weakened.

In particular, when the suture thread is made of a melt thread, the suture thread is relatively weak in strength compared with other materials, and the suture thread is cut early in the process of melting, so that the lifting state can not be maintained for a long time.

An object of the present invention is to provide a lifting device capable of improving tensile strength and performing effective lifting.

According to an aspect of the present invention, a lifting apparatus includes a tubular needle, and a suture inserted into the needle and having a plurality of projections formed on an outer surface thereof, the projections being formed by laser processing.

The suture may include a first protrusion formed with a protrusion protruding in a first direction and a protrusion protruding in a second direction opposite to the first direction.

The suture includes a second protrusion spaced apart from the first protrusion, and the second protrusion may include a protrusion protruding in the first direction and a protrusion protruding in the second direction.

A connection part may be formed between the first protrusion part and the second protrusion part.

In addition, the number of the forward protrusions may be greater than the number of the reverse protrusions.

Also, the number of the reverse protrusions may be greater than the number of the forward protrusions.

The number of the forward protrusions may be 1.1 to 1.35 times the number of the backward protrusions.

In addition, the angle of inclination between the forward protrusion and the outer surface of the suture may be 20 to 55 degrees.

In addition, the inclination angle formed by the reverse protrusion and the outer surface of the suture may be 30 to 60 degrees.

In addition, the inclination angle formed by the reverse protrusion and the outer surface of the suture may be 20 to 60 degrees.

Also, the ratio of the diameter of the needle to the diameter of the suture may be 1.2 to 2.44: 1.

In addition, the diameter of the needle may be 0.15 to 2 mm, and the diameter of the suture may be 0.15 to 1.5 mm.

In addition, the ratio of the diameter of the needle to the diameter of the suture thread may be 2.00 to 2.44: 1.

In addition, the diameter of the needle may be 0.8 to 0.83 mm, and the diameter of the suture may be 0.34 to 0.39 mm.

In addition, the suture may be made of polydioxanone.

In addition, the forward protrusion may include a base fixed to the outer surface of the suture, a side formed in a straight line from the base, and a nip portion where the sides meet.

Further, the projections may be formed to have a triangular cross section.

According to an embodiment of the present invention, since the projections are formed by laser processing and have a stem and a base, not only the strength of the suture is improved but also the projections can be easily supported in the skin tissue.

1 is an exploded perspective view illustrating a lifting apparatus according to an embodiment of the present invention.
2 is a perspective view illustrating a suture according to an embodiment of the present invention.
3 is a plan view of a suture according to an embodiment of the present invention.
4 is a view illustrating a process of forming a protrusion using a laser on a suture according to an embodiment of the present invention.
FIG. 5A is a perspective view showing protrusions according to an embodiment of the present invention, and FIG. 5B is a perspective view showing a conventional protrusion.

The present invention can be variously modified and may have various embodiments, and specific embodiments will be described in detail with reference to the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

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 to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, the present invention and its preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view illustrating a lifting apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a suture according to an embodiment of the present invention.

1 and 2, the lifting apparatus according to the present embodiment includes a tubular needle 20 and a suture 10 inserted into the needle 20 and having a plurality of projections formed on the outer surface thereof .

The needle 20 is formed in a tubular shape having an inner space, and the suture 10 is inserted in the longitudinal direction of the needle 20, but is partially inserted. The needle 20 may be made of metal.

The suture 10 may be made of a polymer material such as polydioxanone or the like and may be made of a material that dissolves over time in a human body.

2, the suture 10 includes a first protrusion 12 having a forward protrusion 12a inclined in a first direction and a reverse protrusion 12b inclined in a second direction opposite to the first direction, And a second protrusion 13 spaced apart from the first protrusion 12 and having a forward protrusion 13a inclined in a first direction and a reverse protrusion 13b inclined in a second direction opposite to the first direction, .

The forward projection 12a of the first projection 12 is formed to protrude in a direction opposite to the direction in which the needle 20 is inserted into the skin of the human body and the backward projection 12b is formed such that the needle 20 is inserted into the skin of the human body As shown in Fig. The forward protrusion 13a of the second protrusion 13 protrudes in a direction opposite to the direction in which the needle 20 is inserted into the skin of the human body and the backward protrusion 13b is formed so that the needle 20 protrudes in the skin of the human body And is formed so as to protrude in the direction of insertion.

The first protrusions 12 and the second protrusions 13 are spaced apart from each other and a connecting portion 15 having no protrusion is formed between the first protrusions 12 and the second protrusions 13. [ The first protrusions 12 and the second protrusions 13 are formed on one side only in the outer periphery of the suture, and are arranged in a row.

The forward protrusions 12a and 13a protrude from the front end of the needle 20 toward the rear end and the reverse protrusions 12b and 13b protrude from the rear end of the needle 20 toward the front end. The tip of the needle 20 means a portion formed to be pointed so as to enter the inside of the human body and the rear end of the needle 20 means a portion coupled with the syringe.

The number of the forward protrusions 12a and 13a is greater than that of the backward protrusions 12b and 13b and the number of the forward protrusions 12a and 13a may be 1.1 times to 2.0 times the number of the backward protrusions 12b and 13b And preferably 1.1 times to 1.35 times. However, the present invention is not limited thereto, and the number of the reverse protrusions 12b, 13b may be greater than the number of the forward protrusions 12a, 13a.

Tension must be applied in the opposite direction with respect to the direction of insertion into the skin to pull the skin. If the number of the forward protrusions 12a, 13a is larger than the number of the backward protrusions 12b, 13b, a larger tension can be applied, thereby maximizing the skin lifting effect. However, the forward protrusions 12a and 13a are supported when they are pulled in the direction opposite to the direction of insertion into the skin, and the forward protrusions 12a and 13a and the backward protrusions 12b and 12b are retained when the external force is removed, 13b are supported, the tension may not be maintained if the number of the reverse protrusions 12b, 13b is too small. If the number of the forward protrusions 12a and 13a is set to 1.1 times to 1.3 times the number of the backward protrusions 12b and 13b, the applied tension and the holding tension can be maximized as shown in Table 1 below. Table 1 shows the result of measuring the maximum applied tension and the maximum holding tension while fixing the number of the reverse protrusions 12b and 13b at 20 and changing the number of the forward protrusions 12a and 13a from 20 to 30 . Here, the maximum applied tension means the maximum tension when the suture 10 is pulled, and the maximum sustained tension means the tension held by the suture 10 when the maximum tension is applied and the external force is removed.

Item Number of backward protrusions versus number of forward protrusions Maximum applied tension (N / mm2) Maximum holding tension (N / mm2) Example 1 1: 1 0.08 0.08 Example 2 1: 1.05 0.09 0.09 Example 3 1: 1 0.012 0.011 Example 4 1: 1.2 0.018 0.015 Example 5 1: 1.25 0.020 0.016 Example 5 1: 1.3 0.021 0.017 Example 6 1: 1.35 0.022 0.017 Example 7 1: 1.40 0.022 0.017

The angle of inclination of the forward protrusions 12a, 13a with the outer surface of the suture 10 may be 20 to 55 degrees. The inclination angle of the reverse protrusions 12b and 13b with the outer surface of the suture 10 may be 20 to 60 degrees, and preferably 30 to 60 degrees. At this time, the inclination angle formed by the reverse protrusions 12b, 13b and the suture 10 is formed larger than the inclination angle formed by the forward protrusion and the suture. It can be understood that the maximum tension can be applied when the inclination angle of the reverse protrusion 12b with the outer surface of the suture 10 is 20 to 60 degrees as shown in Table 2 below. It can be seen that a larger tension can be applied when the inclination angle is from 30 to 60 degrees.

Item Backward
Inclination angle Maximum applied tension (N / mm2) Example 1         10 0.004 Example 2 15 0.008 Example 3 20 0.015 Example 4 30 0.019 Example 5 40 0.021 Example 6 50 0.018 Example 7 60 0.016 Example 8 65 0.009 Example 9 70 0.004

On the other hand, the thickness of the forward protrusions 12a, 13a and the reverse protrusions 12b, 13b may be 1/20 to 1/2 of the diameter D2 of the suture 10, 10 < / RTI > If the thickness of the forward protrusion 12 and the thickness of the reverse protrusion 13 is less than 1/20 of the diameter of the suture, the strength of the protrusion may be weak and the skin may not be properly supported. If the thicknesses of the forward protrusions 12a and 13a and the backward protrusions 12b and 13b are larger than 1/10 of the diameter of the suture thread, the strength of the suture 10 is weakened.

1, the ratio of the diameter D1 of the needle 20 to the diameter D2 of the suture 10 may be 1.2 to 2.44: 1, preferably 2.00 to 2.44: 1. have. The diameter D1 of the needle 20 is 2 to 2.44 times the diameter D2 of the suture 10.

When the diameter ratio between the needle 20 and the suture 10 is smaller than 2.00: 1, the diameter D2 of the suture 10 is relatively increased. However, the diameter of the suture 10 is larger than the diameter of the forward protrusions 12a, 13a and the inward protrusions 12b, The forward protrusions 12a, 13a and the reverse protrusions 12b, 13b are not easily attached to the skin tissue. If the diameter ratio between the needle 20 and the suture 10 is smaller than 2.44: 1, the diameter D1 of the suture 10 is reduced, and thus the suture 10 is cut off prematurely.

Here, the diameter D1 of the needle 20 is 0.15 to 2 mm, and the diameter D2 of the suture 10 is 0.15 to 1.5 mm. The diameter D1 of the needle 20 is 0.8 to 0.83 mm and the diameter D2 of the suture 10 is 0.34 to 0.39 mm.

As shown in Fig. 4, the forward protrusions 12a, 13a and the reverse protrusions 12b, 13b can be formed by laser processing. When the protrusions 12 and 13 are formed by laser processing, the protrusions 12 and 13 can be formed thinner and more easily attached to the skin tissue.

Since the forward protrusions 12a and 13a and the reverse protrusions 12b and 13b have the same structure, the explanation of the protrusions 12a formed on the first protrusions 12 will be replaced with the description of the protrusions.

As shown in Fig. 3, the forward protrusion 12a includes a base 12aa fixed to the outer surface of the suture 10, a side surface 12ac formed in a straight line from the base 12aa, and a side surface 12ac And the forward protrusion 12a is preferably formed to have a triangular cross section.

As described above, when the forward protrusion 12a has a structure including the base 12aa and the stem 12ab, the forward protrusion 12a is not only well supported on the skin tissue but also the strength of the suture 10 is reduced .

5B, since the conventional suture thread 50 forms the protrusions 53 by using the blade, the protrusions 53 are formed to have an elliptical cross-section so that the portions having the relatively protrusions have a small thickness, There was a problem of deterioration. In addition, even if the projections are formed by using the laser, if the projections having an elliptical shape are formed, the thickness of the suture is reduced and the projections are not properly caught in the skin tissue.

However, according to the present embodiment, since the forward protrusion 12 is formed to have the base 12aa, the vertex 12ab, and the straight side surface 12ac, the suture 10 is not only easily caught in the skin tissue, 10 can be minimized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

10: Suture
20: Needle
12: first protrusion
13: second protrusion
12a, 13a: Forward protrusion
12b, 13b: reverse projection
12aa: Base
12ab: Staples
12ac: side

Claims (17)

A tubular needle; And a suture inserted into the needle and having a plurality of protrusions formed on the outer surface by laser processing,
The suture includes a first protrusion protruding in a first direction and a second protrusion protruding in a second direction opposite to the first direction. The first protrusion is spaced apart from the first protrusion and protruded in the first direction, Wherein the number of the forward protrusions is 1.1 to 1.35 times the number of the backward protrusions, and the number of the forward protrusions is 1.1 to 1.35 times the number of the backward protrusions,
A connecting portion having no protrusion is formed between the first protrusion and the second protrusion,
Wherein an angle of inclination between the forward protrusion and an outer surface of the suture is 20 to 55 degrees and an inclination angle between the backward protrusion and the outer surface of the suture is from 30 to 60 degrees,
The ratio of the diameter of the needle to the suture is 2.00 to 2.44: 1,
The diameter of the needle is 0.8 to 0.83 mm, the diameter of the suture is 0.34 to 0.39 mm,
The suture is made of polydioxanone,
Wherein the forward protrusion includes a base fixed to an outer surface of the suture, a side formed by a straight line extending from the base, and a vertex where the side surfaces meet, and the protrusion has a triangular cross section.
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