KR102573642B1 - A special needle assembly with lifting suture for rhinoplasty - Google Patents

Abstract

The present invention relates to a special needle assembly having a lifting suture for rhinoplasty, and more particularly, the lifting suture forms a support with an expanded diameter at the end so that the operator can easily locate the end of the suture when inserting the human body, The special needle with the built-in suture forms a bent part bent at the angle of the nose tip of the human body, so that the suture is pulled out from the special needle body after the position of the suture support is fixed during the procedure, so that the suture is repeatedly moved in the longitudinal direction during the positioning of the support. It relates to a special needle assembly capable of preventing damage to adjacent human tissues.

Description

Special needle assembly having a lifting suture for rhinoplasty {A SPECIAL NEEDLE ASSEMBLY WITH LIFTING SUTURE FOR RHINOPLASTY}

The present invention relates to a special needle assembly having a lifting suture for rhinoplasty, and more particularly, the lifting suture forms a support with an expanded diameter at the end so that the operator can easily locate the end of the suture when inserting the human body, The special needle with the built-in suture forms a bent part bent at the angle of the nose tip of the human body, so that the suture is pulled out from the special needle body after the position of the suture support is fixed during the procedure, so that the suture is repeatedly moved in the longitudinal direction during the positioning of the support. It relates to a special needle assembly capable of preventing damage to adjacent human tissues.

A suture used as a surgical suture material is a thread used to suture damaged tissue due to surgical trauma, and can be classified into a biodegradable suture and a non-biodegradable suture depending on whether or not it is degraded in vivo.

A biodegradable suture is a thread that naturally decomposes and disappears after a certain period of time after a damaged tissue is sutured, and is mainly used for fixing skin or suturing soft tissue. A non-biodegradable suture is a thread that does not decompose even after a damaged tissue is sutured, and is mainly used in vascular and orthopedic surgeries.

Since these sutures have good closeness with human tissue, their use as implants for supporting tissue or restoring volume by inserting human tissue is increasing.

For example, by inserting and fixing a suture into the human body, it can be used to prevent or restore sagging or sunken skin by providing a sense of tension between human tissues. The method using a suture is to insert a thread into the subcutaneous layer using a needle, and has the advantage of a simple operation and less burden on the patient than a surgical method in which a thread is inserted and then sutured after incising the skin. In particular, when protrusions are formed on the outer surface of the suture, a supporting force is provided to the suture portion where the protrusion is formed, thereby providing a mechanical pulling force that is harmless to the human body, and thus is widely used for skin lifting.

For example, a procedure for correcting a dropped nose tip, a bent nose, or a low bridge of the nose with a lifting suture has been developed. The bridge of the nose can be raised.

At this time, the lifting suture used for the procedure is inserted into a first surgical line formed in a substantially horizontal direction along the nasal passage between the nose holes and a second surgical line formed in an inclined direction along the bridge of the nose, respectively. .

In this way, when the lifting suture is inserted into the nose to support the shape of the nose, the nose tries to return to its original shape, so it is continuously subjected to tension over time. It often occurs that one end of the suture causes inflammation by irritating the skin or protrudes through the skin. If a problem occurs due to the lifting suture, the lifting suture must be removed, but there is a problem in that additional tissue damage occurs in this process as well.

Therefore, in recent years, problems caused by the use of conventional separate lifting sutures have been solved by using one lifting suture in the nasal direction and the bridge of the nose.

Korean Patent Registration No. 10-2358717 (registered on January 28, 2022; hereinafter referred to as 'Patent Document 1') and Korean Patent Registration No. 10-2411627 (registered on June 16, 2022, hereinafter referred to as 'Patent Document 2') are rhinoplasty. For lifting sutures (corresponding to the lifting thread of Patent Document 1 and the lifting thread of Patent Document 2) are proposed. Patent Document 1 and Patent Document 2 suggest that rhinoplasty is performed by inserting one lifting suture in the nasal and nasal dorsum directions.

In Patent Documents 1 and 2, in the forward direction, which is one of the non-circumferential direction and the nasal bridge direction, the lifting suture is inserted into the human body in a state where the lifting suture is disposed inside the cannula, and the end of the lifting suture exposed to the outside is fixed. Retract only the cannula at , allowing the lifting suture to be placed in the subcutaneous layer. Then, in the opposite direction, which is the opposite layer, the direction is changed through the body insertion point and inserted. At this time, the lifting suture is discharged through the cannula entrance, the cannula advances, and only the cannula is retracted and pulled out of the body.

In this way, when the cannula advances in the forward or reverse direction, a portion of the lifting suture is always exposed to the outside, so the subcutaneous space is formed wide during the forward and backward movement of the cannula, which increases the engraftment time of the lifting suture.

In addition, when the cannula proceeds in the reverse direction, the lifting suture inside the cannula is bent in the opposite direction at the cannula entrance and discharged, so it cannot be discharged smoothly, and the force to advance the cannula is transmitted to the bent lifting suture to advance the entire lifting suture. A problem that can damage the subcutaneous layer by pulling in the direction may occur.

Therefore, a need has emerged for a new type of surgical tool capable of performing a procedure through the nose tip bend section at once without changing the direction of the inserted needle while minimizing the size of the through hole inserted into the human subcutaneous layer.

Korean Patent Registration No. 10-2358717 (2022.01.28. Registration): Lifting yarn for rhinoplasty Korean Registered Patent No. 10-2411627 (2022.06.16. Registration): Lifting thread for rhinoplasty and its manufacturing method

Accordingly, the special needle assembly having the lifting suture for rhinoplasty of the present invention,

An object of the present invention is to provide an assembly equipped with a special needle that enables a bending procedure by inserting a needle through the tip of the nose in the nasal and dorsum directions during nose tip molding with a single needle insertion.

In addition, another object of the present invention is to provide an assembly having a structure capable of increasing fixing force after insertion while forming a small through hole during insertion of the human body.

A special needle assembly having a lifting suture for rhinoplasty of the present invention to solve the above problems is a tube body having a through hole at the front end, and a needle integrally coupled with a support connection tube portion expanded to fit an injector at the rear end; A thread body formed in the longitudinal direction and placed inside the needle, and formed to have an expanded diameter at the end of the thread body to be caught in the through hole of the needle and seated, inserted into the subcutaneous layer, and an expanded space under the nasal tip cartilage formed as a pair of left and right sides It is made of a lifting suture composed of a support protrusion that is inserted into and fixed,

The needle has a nasal inlet area inserted into the nasal part of the nose in the direction of the support connection pipe at the end where the through hole is formed, a nose tip bending area connecting the nasal mucosa and the nasal bridge, and a nasal bridge inlet area inserted into the nasal bridge portion of the nose As the sutures are formed sequentially, the lifting suture can be inserted to the nasal tip through the curved portion of the tip of the nose at once by the needle inserted into the bridge of the nose.

In addition, the needle may form the length of the nasal tip region to 20 ± 10 mm, the angle of the tip of the nose to 110 ± 20 °, and the length of the nasal bridge to 15 ± 10 mm.

The support protrusion of the lifting suture may be formed in any one of a spherical shape, a hemispherical shape, and a concave shape.

In addition, heterogeneous irregularities are formed on the outer surface of the support protrusion to increase the contact area with the subcutaneous tissue.

In addition, the support protrusion may be formed with a diameter 5 to 40% larger than the outer diameter of the needle, and may be formed with a length of 0.5 to 1.5 mm in the axial direction.

The lifting suture may be configured to increase the contact area by forming a plurality of protrusions in a direction opposite to the direction of providing the tension force in order to increase the fixation rate with the skin tissue, or by configuring one or more multifilaments.

In addition, the material of the lifting suture is polyglycolic acid (PGA), polyglactin (PGLA), polydioxanone (PDO), polyglycolide-co-caprolactone (Poly (glycolide -co-caprolactone), PGCL), Poly L-lactic acid (PLLA), Polylactic acid (PLA), Polycaprolactone (PCL), Hyaluronic acid (HA), It may be a biodegradable polymer composed of a natural polymer or a synthetic polymer selected from the group consisting of gold weaving and chitosan, or a random copolymer polymerized with two or more kinds.

The special needle assembly having the lifting suture for rhinoplasty of the present invention according to the above solution means,

During nose tip surgery, a lifting suture can be placed up to the nasal part past the bending section at once by using one needle inserted into the bridge of the nose on the back of the nose.

In addition, since the support protrusion formed at the end of the lifting suture can be fixed by being inserted into the groove of the skeleton forming the trachea, it can provide a strong fixing force against upper pulling.

In addition, since the support protrusion is located at the front of the needle, blood vessels are pushed to both sides during insertion, preventing damage to the blood vessels and minimizing the diameter of the through hole to be inserted. By increasing the area, there is an effect of quickly providing a fixation force by engraftment.

Figures 1a and 1b is a plan view and an enlarged view of the main part showing a special needle assembly having a rhinoplasty lifting suture according to the present invention.
2a and 2b are schematic views showing a lifting suture with protrusions formed on the side according to an embodiment of the present invention, and enlarged cross-sectional views showing a support protrusion having a deformed concave-convex surface.
3a and 3b are side and bottom views of a nose with a lifting suture inserted according to the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and various forms, specific embodiments will be illustrated in the drawings and the present invention will be described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure. In the accompanying drawings, the dimensions of the structures are shown enlarged or reduced than actual for clarity of the present invention.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "include", "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, or combination thereof described in the specification, but one or the other It should be understood that the presence or addition of other features or numbers, steps, operations, elements, or combinations thereof described above is not precluded.

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 the present invention belongs. Terms such as those commonly used and defined in advance are to be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, they are not to be interpreted in an ideal or overly formal sense. .

1A and 1B are a plan view and an enlarged view of a main part showing a special needle assembly having a rhinoplasty lifting suture according to the present invention, and FIGS. 2A and 2B are lifting sutures having side protrusions according to an embodiment of the present invention. A schematic view showing and an enlarged cross-sectional view showing a support protrusion having a deformed concave-convex surface, and FIGS. 3A and 3B are side and bottom views of a nose into which a lifting suture according to the present invention is inserted.

As shown, the special needle assembly 10 according to the present invention is composed of a needle 20 and a lifting suture thread 30 inserted into the needle.

First, the needle 20 is a tubular body having a through hole 21 formed at the front, and a support connection pipe 22 expanded to fit an injector is integrally coupled to the rear end.

The needle 20 can divide certain areas from the end where the through hole 21 is formed toward the support connecting pipe part 22 into a nasal inlet area 23, a nose tip bending area 24, and a nasal bridge inlet area 25.

The needle insertion area 23 is disposed in the nasal part 60 of the nose when the needle is inserted, a straight tube having a length of 20 ± 10 mm, which is a general nose height, or a tube having a gentle angle of 1 to 10 °. can be formed as If formed with a length of 30 mm or more or 10 mm or less, the average nose height, in particular, in the present invention, the needle is inserted to a deeper place past the position of the gap on the lower side of the lower wing cartilage (50), or it does not reach the position of the gap Since it is not suitable for the procedure of inserting it under the lower wing cartilage, it is preferable to set the length within the above range.

Subsequently, the nose tip bending area 24 of the needle is a bending area connecting the nasal tip area 23 and the nose bridge area 25, and the bending angle is formed at 110 ± 20 ° so that the nasal tip 60 and the nose bridge 70 It is similar to the formation angle of . Even if the needle is inserted using the bridge of the nose as the insertion point, the insertion angle is changed by the nose tip bending area, making it possible to insert the needle into the nasal part as well. In addition, the bending radius is preferably formed in the range of 4 to 15 mm so as to correspond to the curved surface formed by the nasal tip cartilage. The bending angle and bending radius are angles that provide a desirable shape among the angles formed by the bridge of the nose and the nose during molding. It is preferable to form within the above range.

The needle area 25 is a needle area inserted into the area extending from the tip of the nose as much as the length of the nasal bridge of the nose bridge portion of the nose. The nasal dorsum area 25 is a straight section arranged in parallel with the bones forming the nasal dorsum. The intranasal area 25 may be formed to be approximately 15 ± 10 mm, and a lifting suture may be placed on the bridge of the nose 70 by the length of the intranasal area. Although it is possible to increase the bearing capacity of the lifting suture by forming the intranasal region long, the degree of increase is insignificant, and when formed short, sufficient bearing capacity is not provided because it is similar to straight arrangement without the effect of increasing the bearing capacity due to bending of the suture. Since the effect of providing support force for maintaining upward pulling is low, it is preferable to set the lifting suture to be inserted within the above range.

The needle portion after the nasal tip area 25 is a rear area that is a straight line to the support connecting pipe, and the portion connected to the nose area is bent in the opposite direction to the nose tip bending area by bending, so that the procedure can be performed easily there is. The bending angle of the nasal bridge region and the posterior region may be set to 0 to 60°. If the angle is greater than 60°, it is preferable to form the above range because the side of the support connection pipe before skin penetration is disposed close to the face of the subject to be treated, making it inconvenient to manipulate the needle or lifting suture.

Meanwhile, the lifting suture 30 of the present invention may include a thread body 31 formed in the longitudinal direction and a support protrusion 32 formed at a front end of the thread body.

The yarn body 31 may be formed with a plurality of protrusions 311 to increase the fixation rate with the skin tissue, or may be configured with one or more multifilaments to increase the contact area. That is, it is composed of one filament to form a plurality of projections to provide fixing force by the projections, or composed of one or more multifilaments to provide fixation force by regenerating biological tissue through the space between the filaments. It is possible to provide a double fixing force by the space between the filaments and the protrusions to form a configuration.

The protrusion 311 provided on the thread body 31 may increase the contact area by protruding to the side perpendicular to the axis of the thread body, but resists in a direction opposite to the direction of providing the tension force to give the direction of providing the fixing force. It may be provided in the form of a wedge that is generated.

Figure 2a is an embodiment of the lifting suture 30 according to the present invention, the lifting suture of the present invention provides tension in the direction of pulling the tip of the nose upward, so the protrusion 311 resists in the direction in which the support protrusion 32 is formed. It can be provided in the form of a wedge having.

Next, the support protrusion 32 expands its diameter to prevent it from being caught in the front through hole 21 of the needle 20 and inserted into the needle, and is integrated with the thread body by a fusion method such as thermal fusion or ultrasonic fusion. may consist of The support protrusion 32 may be formed in any one of a spherical shape, a hemispherical shape, and a concave shape, and is preferably formed in a hemispherical or spherical shape protruding forward. If the support protrusion is formed in a spherical or hemispherical shape, the lifting suture is coupled to the needle and the support protrusion of the suture is placed forward when the human body is inserted, so that the blood vessel can be pushed forward by pushing the suture to both sides, thereby minimizing damage to the blood vessel during the needle insertion process. . In addition, the formation of the support protrusion can solve the problem of folding the suture from the outside or using a separate fixing tool to prevent the end of the suture from being inserted into the needle. In addition, the support protrusion may be provided in a form in which a stepped portion is formed at a portion connected to the yarn body, or may be provided in a cone form in which a diameter is gradually expanded. In particular, the truncated cone shape can be inserted through a wide surface into the split part of the tip cartilage to be described later when inserted into the subcutaneous tissue.

As shown in FIG. 2B , the support protrusion 32 may have a heterogeneous concave-convex surface 321 formed on an outer surface thereof. The irregular concave-convex surface increases the contact area with the subcutaneous tissue so that bio-bonding can be achieved over a wider area.

As described above, the support protrusion 32 is formed larger than the diameter of the needle through hole 21 so that when the lifting suture 30 is coupled to the needle 20, the support protrusion 32 is caught on the end of the needle and placed in the correct position. can do. The support protrusion 32 is formed to have a diameter 5 to 40% larger than the outer diameter of the needle 20 and is configured to protrude more to the side than the needle, so that the operator can easily find the end position of the lifting suture inserted into the skin during the procedure. there is. If the diameter of the support protrusion 32 is formed to be 5% or less than the outer diameter of the needle 20, a problem of being inserted without being caught on the end of the needle may occur, and if it is formed to 40% or more, the damage range of the subcutaneous tissue layer during insertion can be reduced. It is preferable to form in the above range because it is difficult to biocouple by rapid regeneration by increasing it and the load is concentrated on the edge, which may cause a problem of bending or tearing the support protrusion. In this way, increasing the diameter (length in the direction orthogonal to the axis or lateral length) of the support protrusion 32 causes the needle to be caught on the step during assembly and allows the operator to easily find the nose skeleton during the procedure. It also includes a point that allows it to be easily fixed by being inserted into it.

In addition, the axial length of the support protrusion 32 is formed in the range of 0.5 to 1.5 mm. When the protrusion is less than 0.5 mm, it protrudes convexly, and it is difficult to provide an effect of pushing the blood vessels to both sides to advance. It is desirable to form a range.

In this way, the lifting suture 30 having the support protrusion 32 formed at the front end of the thread body 31 is made of a biodegradable material and can be decomposed within a certain period after the procedure.

Preferably, polyglycolic acid (PGA), polyglactin (PGLA), polydioxanone (PDO), polyglycolide-co-caprolactone (Poly (glycolide-co-caprolactone) , PGCL), Poly L-lactic acid (PLLA), Polylactic acid (PLA), Polycaprolactone (PCL), Hyaluronic acid (HA), Gold weaving ), a natural polymer or a synthetic polymer selected from the group consisting of chitosan, or a random polymer polymerized with two or more kinds.

As described above, the process of using the special needle assembly in which the lifting suture is assembled to the needle will be described with reference to FIGS. 3A and 3B.

First, the special needle assembly 10 in which the lifting suture 30 is attached to the needle 20 having the nasal tip flexion area 24 is inserted into the bridge of the nose 70. Here, the needle 20 of the assembly arranges the nasal injection area 23 parallel to the bridge of the nose 70 as much as possible, and then inserts into the skin in the direction of the tip of the nose.

When the needle is inserted into the nasal tip as the point of insertion, the special needle assembly is rotated 180 degrees to insert the needle into the nasal tip through the curved point of the tip of the nose.

Here, in the lifting suture 30 inserted into the needle, a support protrusion 32 is disposed at an end of the needle. Since the support protrusion 32 has a slightly larger diameter than the needle 20, the operator can easily find the position of the support protrusion.

The support protrusion 32 is inserted into and fixed to the lower part of the lower wing cartilage (50; nose tip cartilage) constituting the nose cartilage. That is, as shown in FIG. 3B, the lower alar cartilage 50 is composed of a pair of right and left sides, and the supporting protrusion 32 of the lifting suture is inserted into the part split into both sides at the bottom of the drawing to be engaged. Since the structure is caught by the support protrusion 32, separation of the support protrusion from the lower wing cartilage due to the pulling force of the suture can be minimized. In addition, the thread body 31 of the lifting suture provides a frictional force by itself or a supporting force by protrusions, so that the pulling force acting on the lower wing cartilage 50 can be prevented from being lowered.

In the present invention, the support protrusion 32 of the lifting suture 30 is inserted into the lower wing cartilage, only the needle is removed, and then the suture is pulled to provide a pulling force, or the support projection is inserted into the lower wing cartilage and the suture is pulled upward. While removing the needle, it is possible to simultaneously remove the needle and provide a pulling force.

In addition, since the special needle assembly 10 of the present invention has a "ㄱ"-shaped insertion structure in which a needle is inserted into the bridge of the nose, which is the bridge of the nose 70, and is inserted into the nasal tip 60 through the curved part of the tip of the nose, it is not pushed after the procedure. As a result, it is possible to provide a useful device capable of preventing the suture 30 from penetrating the skin and being exposed, and additionally providing support or fixing power of the suture by bending to prevent sagging of the tip of the nose.

10: special needle assembly
20: needle
21: through hole 22: support connection pipe
23: intranasal area 24: nasal tip flexion area
25: intranasal area
30: lifting suture
31: thread body 32: support protrusion
311: protrusion 321: irregular convex surface
50: lower wing cartilage
60: bijou
70: bridge of the nose

Claims (8)

A needle integrally coupled with a support connection tube portion having a through hole formed at the front end and expanded to fit an injector at the rear end; A thread body formed in the longitudinal direction and placed inside the needle, and formed to have an expanded diameter at the end of the thread body to be caught in the through hole of the needle and seated, inserted into the subcutaneous layer, and an expanded space under the nasal tip cartilage formed as a pair of left and right sides A lifting suture consisting of a support protrusion inserted into and fixed to;
the needle,
A 20 ± 10 mm long nasal inlet area inserted into the nasal part of the nose in the direction of the support connection pipe at the end where the through hole is formed, and a 110 ± 20 ° angle and a curvature radius of 4 to 15 mm between the nose and the nasal bridge Connecting to have The nose tip curvature area and the nasal tip area, which is 15 ± 10 mm long, are formed sequentially.
A special needle assembly having a lifting suture for rhinoplasty, characterized in that the lifting suture is inserted to the nasal tip through the nasal tip bend at once by the needle inserted into the bridge of the nose. delete delete According to claim 1,
The special needle assembly having a lifting suture for rhinoplasty, characterized in that the support protrusion of the lifting suture is formed in any one of a spherical shape, a hemispherical shape, and a concave shape. According to claim 4,
A special needle assembly having a lifting suture for rhinoplasty, characterized in that a heterogeneous irregularity is formed on the outer surface of the support protrusion to increase the contact area with the subcutaneous tissue. According to claim 4,
The special needle assembly having a lifting suture for rhinoplasty, characterized in that the support protrusion is formed in a diameter 5 to 40% larger than the outer diameter of the needle and formed in a length of 0.5 to 1.5 mm in the axial direction. According to claim 1,
The lifting suture is configured to increase the contact area by forming a plurality of projections in the direction opposite to the direction of providing tension in order to increase the fixation rate with skin tissue, or by configuring one or more multifilaments to increase the contact area. A special needle assembly with a lifting suture. According to claim 1,
The material of the lifting suture is
Polyglycolic acid (PGA), Polyglactin (PGLA), Polydioxanone (PDO), Poly(glycolide-co-caprolactone) (PGCL), Poly L-lactic acid (PLLA), Polylactic acid (PLA), Polycaprolactone (PCL), Hyaluronic acid (HA), Gold weaving, Chitosan ( A special needle assembly having a lifting suture for rhinoplasty, characterized in that it is a biodegradable polymer composed of a natural polymer or synthetic polymer selected from the group consisting of Chitosan) or a random copolymer polymerized with two or more kinds.

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