KR20200099942A - Filler injecting type medical treatment implant - Google Patents

Abstract

The present invention provides a filler injection-type plastic implant capable of accurately and quickly positioning a filler at a specific site of surgical procedure by uniformly and quickly injecting the filler into the site of surgical procedure, and capable of sustaining the volume of the injected filler over a long period of time. The present invention discloses the filler injection-type plastic implant comprising: a hollow main body part made of a biocompatible material; an insertion hole which is provided at one end of the main body part and into which a needle of an injection device is inserted; and a plurality of discharge holes arranged at intervals in the longitudinal direction of the main body part so that the liquid filler filled into the main body part through the insertion holes is discharged to the outside.

Description

Filler injection molding implant {FILLER INJECTING TYPE MEDICAL TREATMENT IMPLANT}

The present invention relates to a filler injection-type implant, and more particularly, to a filler-injection-type implant for injecting a filler into a skin tissue in order to improve wrinkles or to repair a missing area.

In general, plastic surgery refers to an operation or procedure for recovering functional and external defects by surgically correcting deformation of the body due to congenital or acquired factors. Compared to the plastic surgery method in the past, where the method of incising the body part, like general surgery, in recent years, it is possible to expect excellent plastic surgery effects only with relatively simple procedures such as injections. The frequency of plastic surgery for the purpose of surgery is increasing.

In particular, the filler treatment, which has an excellent effect on the improvement of wrinkles or facial contours that occur naturally by aging, is known to have a dramatic effect in a short period of time even with a simple injection treatment, and is a plastic surgery method widely used in all age groups.

In general, the filler treatment improves wrinkles by filling the spaces in the skin tissue that cause wrinkles by injecting a filler into the treatment area desired to be formed. It is possible to remove wrinkles in the desired area or to repair the area by inserting it in a position that can accurately penetrate the body parts such as the shed, under the eyes, and the nose.

Since the filler must be made of a material that can be easily decomposed and absorbed in the skin tissue and does not cause a foreign body reaction, a material in a colloidal state having chemical properties that is safe for the human body is mainly used.

As shown in FIG. 1, a conventional filler treatment tool used for filler treatment uses an injection device 10 in the form of a syringe, and the syringe cylinder 11 storing the filler and the outlet of the syringe cylinder 11 It consists of a connecting needle 13 or a cannula. The needle 13 is a shape commonly found in conventional medical syringes, and is configured to form a sharp point by cutting the tip obliquely to facilitate insertion into the skin tissue. Therefore, a filler treatment is performed by inserting a needle 13 or a cannula into the treatment site desired to be formed and injecting the filler by pressing the piston 12.

In the case of a filler procedure using the injection device 10 for a conventional filler procedure, the liquid or gel colloidal filler cannot form an initial predetermined shape injected into the skin tissue. In other words, in order to place the filler in the specified exact treatment site, the practitioner's meticulous ability is required, and accordingly, a problem that shows a big difference in satisfaction after the treatment occurs depending on the operator or the treatment site.

In addition, in the case of filler treatment using the needle 13 of the injection device 10, the operator must continue to handle the needle 13 in order to inject the filter of the correct volume into the specified treatment site. There is a problem that the side effects become more severe.

Particularly, since the needle 13 of the injection device 10 has a sharp point formed at the tip, it will hurt blood vessels or nerve tissues when inserted into the skin tissue or when the position is changed. As a side effect, the skin is bruised and brushed. Or convulsions occur.

On the other hand, liquid or gel colloidal fillers cannot form an initial predetermined form injected into the skin tissue, and since the volume of the injected filler cannot be continuously maintained at the desired position, it does not properly exert effects such as wrinkle improvement. Of course, as time passes, a phenomenon in which the filler flows down in the skin tissue by gravity is caused, leading to side effects such as sagging and sagging of the skin.

Korean Patent Publication No. 2009-0131809 (published on December 30, 2009)

An object of the present invention is to solve the problems of the prior art, and the present invention is to quickly and uniformly supply the filler to the outside of the surface, so that the volume of the filler can be quickly and uniformly positioned for a specified treatment site. It is to provide a filler injection molded implant that allows.

In addition, the present invention is to provide a filler injection molded implant that allows the volume of the filler positioned at a specified treatment site to last for a long time by forming the skeleton structure of the injected filler.

In order to achieve the object of the present invention described above, the filler injection molded implant according to the present invention is made of a biocompatible material, and includes a hollow body portion; An insertion hole provided at one end of the body and into which a needle of an injection device is inserted; And a plurality of discharge holes disposed to be spaced apart from each other along a longitudinal direction of the body part so that the liquid filler filled in the body part is discharged to the outside through the insertion hole.

In this case, in the filler-injection-type implant according to the present invention, the discharge holes are disposed at a predetermined distance along the periphery of the surface of the body part, and the discharge holes may be disposed to be staggered from each other along the length direction of the body part.

In addition, in the filler injection molded implant according to the present invention, the discharge hole may have a smaller size as it approaches the insertion hole.

In addition, in the filler injection molded implant according to the present invention, the closer the discharge hole toward the insertion hole, the larger the gap between the adjacent discharge holes may be formed.

In addition, in the filler injection molded implant according to the present invention, the protrusion formed to protrude from the surface of the body portion, and may further include a locking protrusion disposed to be spaced apart from each other along the length direction of the body portion.

In this case, in the filler-injection-type prosthesis according to the present invention, the locking protrusion may have a size larger than the size of the rest of the locking protrusions disposed at the entrance side of the insertion hole.

In addition, in the filler injection molded implant according to the present invention, a helical locking protrusion formed to protrude from the surface of the body portion and having a predetermined pitch along the length direction of the body portion may be further included.

At this time, in the filler-injection-type implant according to the present invention, incisions arranged to be spaced apart from each other along a spiral may be formed in the spiral locking protrusion.

In addition, in the filler injection molded implant according to the present invention, grooves formed to be recessed from the surface of the body portion and disposed to be spaced apart from each other along the length direction of the body portion; in this case, the discharge hole It may be formed in the groove area.

In addition, in the filler injection molded implant according to the present invention, a process of separating the needle from the body part is mounted between the needle and the body part so that a part of the body part is exposed to the outside of the body when the body part is inserted into the body part. It may further include a needle supporter for guiding the movement of the needle while maintaining the position of the body portion by receiving an external reaction force opposite to the movement direction of the needle.

The molded implant according to the present invention can fill the filler with a uniform distribution in the surrounding treatment area through a plurality of discharge holes formed along the length or circumference, and increase satisfaction with the procedure.

In addition, since the present invention does not require excessive handling of the needle inserted into the body during the injection process of the filler, it is possible to perform an easy procedure, and bruising, swelling, or convulsion occurs due to injury to blood vessels or nerve tissues. It can reduce the side effects of the procedure.

In addition, the present invention can significantly increase the wrinkle improvement effect by increasing the duration of the injected filler volume by maintaining the skeletal structure of the filler as well as injecting the filler to the periphery through a molded implant made of a biocompatible material.

In addition, the present invention can accurately maintain the position of the molded prosthesis during or after the procedure through the protrusion or groove formed along the length or circumference, thereby further increasing the satisfaction with the procedure.

1 is a perspective view showing a conventional injection device for filler injection.
2 is a perspective view for explaining a filler injection molded implant according to an embodiment of the present invention.
3 is a cross-sectional view of the filler injection-type implant of FIG. 2.
4 and 5 are views showing various embodiments of a filler injection-type implant according to the present invention.
6 is a view showing still another various embodiments of the filler injection molded implant according to the present invention.
7 is an exemplary view illustrating a process of separating a needle of an injection device after insertion of a filler injection-type implant according to the present invention is completed.

Hereinafter, preferred embodiments of the present invention in which the above-described problem to be solved can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiments, the same names and the same reference numerals are used for the same components, and additional descriptions thereof are omitted.

2 is a perspective view for explaining a filler injection-type implant according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of the filler injection-type implant of FIG. 2.

In the molded implant 100 according to the present invention, the filler is evenly and quickly injected into the specified treatment site so that the filler is accurately and quickly positioned at the treatment site, and the volume of the injected filler by maintaining the skeletal structure of the injected filler. It is to ensure that this can be sustained stably.

The filler injection molded implant 100 according to the present invention is inserted into a living body, which is a treatment site, and includes a body part 110 having a hollow shape.

The body part 110 has a hollow part 111 formed therein, and an insertion hole 120 into which a needle 13 of an injection device can be inserted is provided and opened, and a distal end part 112 inserted into a living body The other end can be closed.

In addition, the body portion 110 may be made of a biocompatible material that is harmless to the living body.

Biocompatible materials include, for example, polylactic acid (PLA-poly lactide), polyglycolic acid (PGA-poly glycolide), PHA-poly hydroxy alcohol acid, and polyhydroxybutyric acid (PHB-poly). hydroxy butyric acid), polydioxanone (PDO-poly dioxanone), and caprolactone (CL-caprolactone), or may be applied as a combination thereof. It is not particularly limited to these materials.

In addition, the body portion 110 may have a predetermined rigidity in order to accurately insert and reach the treatment site.

In addition, the body portion 110 may be made of a biodegradable material that decomposes after a predetermined time elapses. The predetermined time may mean a time during which the wrinkles are removed and the repaired state of the turned off portion can be maintained for a predetermined time after injection of the filler.

In addition, the body portion 110 may be made of a material that is transformed into a gel after being inserted into a living body. For example, a temperature sensitive material may be used.

In addition, the body portion 110 may have a certain length, and the length of the body portion 110 may be variously adjusted in consideration of the treatment site to be inserted, the amount of filler to be injected, and the biostructure of the patient.

In addition, the body portion 110 may be variously adjusted in cross-sectional shape and diameter in consideration of not only the length, but also the inserted treatment site, the amount of filler to be injected, and the biostructure of the patient. As shown, it has a circular cross-sectional structure, but may be formed in a polygonal shape.

In addition, the body portion 110 may have flexibility in consideration of a treatment area of the human body to be inserted. As shown, it is possible to maintain the straight line shape, and may be bent to have a certain curvature. Accordingly, it can be applied to various treatment sites, and a more accurate position can be secured for such treatment sites.

The body part 110 of the molded implant 100 inserts the needle 13 of the injection device 10 (FIG. 1) into the insertion hole 120 formed at one end, so that the operator can use the injection device 10 to It can be inserted into the desired treatment site.

Meanwhile, the molded implant 100 according to the present invention may include a needle supporter 170.

That is, referring to FIGS. 2 and 7, the needle supporter 170 is mounted between the needle 13 and the body 110 so that a part of the body part 110 is exposed to the outside of the body when the body part 110 is inserted into the body. , In the process of separating the needle 13 from the body 110, an external reaction force opposite to the movement direction of the needle 13 is provided to maintain the position of the body 110 and at the same time guide the movement of the needle 13 can do.

As an example, the needle supporter 170 has a through hole 171 through which the needle 13 passes, and at one end, a position fixing part 172 coupled to the insertion hole 120 of the body part 110 is formed, The other end may be formed to have a larger diameter than the body portion 110 and the gripping portion 173 exposed to the outside of the body of the treatment site may be formed.

When explaining the operation of the needle supporter 170, prior to inserting the molded implant 100, the needle 13 of the injection device 10 (refer to FIG. 1) is the through hole 171 of the needle supporter 170 The needle supporter 170 is first mounted on the needle 13 so as to penetrate through, and then the molded implant 100 is mounted on the needle 13. Thereafter, the operator directly handles the injection device 10 and inserts the molded prosthesis 100 into a desired treatment site. After the implantation procedure of the molded implant 100 is completed, the operator presses the piston 12 of the injection device 10 to inject a filler into the molded implant 100.

Referring to FIG. 7, when filler injection is completed as described above, the operator separates the injection device 10 from the molded implant 100 with the other hand while holding the gripping part 173 of the needle supporter 170 with one hand. Deviate.

Eventually, in the process of separating the injection device 10 from the cosmetic implant 100 that has been treated, the position fixing part 172 of the needle supporter 170 is in close contact with the insertion hole 120 of the body part 110 , Since the gripping part 173 is exposed to the outside of the skin tissue so that the operator can provide reaction force, the body part 13 inserted in the separation process of the needle 13 is positioned together with the needle 13 Movement can be prevented, and since the separation movement of the needle 13 can be guided correctly, the operator can very easily separate the injection device 10 with the molded implant 100.

Subsequently, the filler injection molded implant 100 according to the present invention includes a plurality of discharge holes 130.

The discharge holes 130 may be disposed to be spaced apart from each other along the length direction of the body part 110 so that the liquid filler filled in the body part 110 is discharged to the outside through the insertion hole 120.

4 and 5 are views showing various embodiments of a filler injection-type implant according to the present invention, and show discharge holes 130 arranged in various shapes.

As shown, a discharge hole 130 may be provided to maintain various intervals and quantities along the length direction of the body part 100. In this way, the quantity and spacing of the discharge holes 130 in the longitudinal direction of the body part 100 are in consideration of the length of the body part 110, the treatment part, the amount of filler to be injected, and the biostructure of the patient. It can be variously adjusted as shown in Figure 4 (a) and Figure 4 (b).

In this way, the filler may be uniformly filled in the entire surrounding area including the body part 110 through the discharge hole 130 formed along the length direction of the body part 110.

In addition, the discharge hole 130 may be disposed while maintaining a predetermined distance along the circumference of the surface of the body portion 110.

As shown, FIG. 2 has two discharge holes 130 maintained at a 180 degree interval, and FIG. 4 (a) (b) has four discharge holes 130 maintained at a 90 degree interval, respectively. . In this way, the number and spacing of the discharge holes 130 spaced apart along the periphery of the surface of the body 110 may also be variously adjusted in consideration of the treatment site, the amount of filler injected, and the biostructure of the patient.

In this way, as the plurality of discharge holes 130 maintaining equal intervals along the periphery of the surface of the body portion 110 are disposed, the filler can be more evenly filled with respect to the surrounding treatment area including the body portion 110.

In addition, in the discharge hole 130, adjacent discharge holes 130 along the length direction of the body portion 110 may be disposed to be staggered with each other.

As described above, by disposing the adjacent discharge holes 130 along the length direction of the body part 110 to cross each other, the filler may be more evenly filled with respect to the surrounding treatment area including the body part 110.

Subsequently, the molded implant 100 according to the present invention may include a locking protrusion 140.

The locking protrusions 140 are formed to protrude from the surface of the body portion 110 and may be disposed to be spaced apart from each other along the length direction of the body portion 110.

The locking protrusion 140 may be formed to have directionality in a direction inserted toward the treatment site. In other words, the implanted implant 100 is inserted smoothly by having a small frictional resistance in the direction in which the implanted implant 100 is inserted toward the treatment site, and the implanted implant has a large frictional resistance in the opposite direction to be inserted. Make sure that (100) does not fall in the opposite direction.

As a result, the locking protrusion 140 can prevent the molded prosthesis 100 inserted in the desired treatment site from being separated from the inserted direction or from being separated to another position.

Meanwhile, when a plurality of locking protrusions 140 are provided along the length direction of the body portion 110, the remaining locking protrusions having different sizes (diameters) of the locking protrusions 140" provided at the entrance side of the insertion hole 120 It is preferable to be formed larger than the size (diameter) of (140).

The reason why the size of the locking protrusion 140 ″ provided at the entrance side of the insertion hole 120 is relatively large as described above is, after the body part 110 is inserted into the treatment site, the body part 110 close to the skin tissue ) By relatively increasing the inlet-side contact area, it is possible to prevent the body portion 110 from being separated again in the opposite direction after being inserted.

On the other hand, as shown in Figure 4 (c), the molded implant 100 according to the present invention may include a groove 160.

The grooves 160 may be formed to be recessed from the surface of the body part 110 and may be disposed to be spaced apart from each other along the length direction of the body part 110.

Unlike the illustration, the groove 160 may be formed in an annular shape.

Like the locking protrusion 140, the groove 160 may prevent the molded prosthesis 100 inserted in the treatment area from being separated from the inserted direction or from being separated to another position.

When the groove portion 160 is formed on the surface of the body portion 110 as described above, the discharge hole 130 is preferably formed in the groove portion 160 region.

Since the groove 160 has a structure that is depressed from the surface of the body part 110, the contact load applied from the biological tissue is relatively weak compared to the other surfaces of the body part 110 in a state inserted into the body. It corresponds.

In the end, when the discharge hole 130 is disposed on the groove 160, the problem that the discharge hole 130 is clogged from the living tissue can be prevented, and the pressure resistance can be reduced in the process of discharging the filler toward the living tissue. , Smooth injection of filler becomes possible.

Meanwhile, as shown in FIG. 5 (a), the discharge hole 130 according to the present invention gradually increases in size (D1>D2) as it approaches from the front end 112 of the body 110 toward the insertion hole 120. It can be formed small.

As the piston (12: FIG. 1) of the injection device 10 (FIG. 1) is pressed, the filler filled in the hollow part 111 through the insertion hole 120 is removed from the body part 110 through the discharge hole 130. It is discharged to the periphery. In this case, a relatively large discharge pressure may act on the side of the insertion hole 120, which is an area adjacent to the injection device 10, compared to the front end 112, which is an area far from the injection device 10.

For this reason, a phenomenon in which more fillers are discharged through the discharge hole 130 adjacent to the insertion hole 120 side having a relatively large discharge pressure compared to the front part 112 may occur.

In consideration of this, the present invention gradually decreases the size (D1>D2) of the discharge hole 130 as it approaches from the front end 112 of the body part 110 toward the insertion hole 120, so that the injection device 10 : In the process of pressing the piston 12 of FIG. 1 (FIG. 1 ), the filler may be uniformly discharged as a whole through the discharge hole 130 formed along the length direction of the body part 110.

On the other hand, as shown in Figure 5 (b), the discharge hole 130 according to the present invention, the closer to the insertion hole 120 from the front end 112 of the body portion 110, the discharge holes 130 adjacent to each other. Intervals (d1 <d2) may be gradually increased.

In this case, the filler discharges relatively more through the discharge hole 130 adjacent to the insertion hole 120 side of the body part 110, which has a relatively large discharge pressure compared to the front end part 112 of the body part 110. In consideration of the phenomenon, the present invention gradually increases the distance (d1 <d2) between the adjacent discharge holes 130 as the body part 110 approaches the insertion hole 120 from the front end part 112. Thus, in the process of pressing the piston 12 (FIG. 1) of the injection device 10 (FIG. 1), the filler may be uniformly discharged as a whole through the discharge hole 130 formed along the length direction of the body part 110. have.

6 is a view showing another embodiment of a filler injection molded implant according to the present invention, showing various types of stopping protrusions.

First, the filler injection molded implant 100 according to the embodiment illustrated in FIG. 6 differs in that the tip portion 112 of the body portion 110 is formed in a streamlined shape.

By forming the distal end 112 of the body part 110 entering the inside of the living body in a streamlined shape, it is possible to reduce the frictional resistance with the living body when the molded implant 100 is inserted, thereby minimizing skin irritation, and the body part Smooth insertion of (110) can be made.

Subsequently, as shown in FIG. 6 (a), the locking protrusion 240 according to the embodiment is formed to protrude from the surface of the body portion 110, and stepped jaws 241a are provided at both ends along the circumferential direction. It has a semicircular shape, and semicircular locking protrusions 240 adjacent to each other along the length direction of the body portion 110 are disposed to be staggered.

In this way, by staggering the locking protrusions 240 provided with stepped jaws 241a at both ends in the circumferential direction along the length direction of the body portion 110, the body portion 110 is inserted into the body. It is possible to keep the contact area with a wider, thereby promoting skin regeneration. In addition, since the contact area between the filler discharged to the outside of the body part 110 and the locking protrusion 240 can be kept wider, the filler can be positioned more quickly.

In addition, since the stepped jaws 241a are formed at both ends of the locking protrusion 340 along the circumferential direction, resistance force can be generated in the circumferential direction of the implant 100 inserted into the living body, and thus the implant 100 It can be prevented from changing position while rotating.

On the other hand, as shown in Figure 6 (b), the locking protrusion 340 according to the embodiment is formed to protrude from the surface of the body portion 110, a spiral having a predetermined pitch along the length direction of the body portion 110 It consists of a structure.

In this way, by forming the helical structure of the locking protrusion 340, it is possible to reduce the frictional resistance with the living body when the molded implant 100 is inserted, thereby minimizing skin irritation and enabling smooth insertion into the skin tissue. .

Meanwhile, as shown in FIG. 6C, the spiral locking protrusion 340 may include cutouts 341 disposed along the spiral to be spaced at a predetermined interval.

In this way, by forming the spiral locking protrusion 340 including the incision 341, the frictional resistance with the living body can be reduced when the implant is inserted due to the spiral locking protrusion 340, thereby reducing skin irritation and smooth Insertion is possible.

In addition, since the stepped jaws 341a are formed at both ends of the locking protrusion 340 along the spiral by providing the incision 341, the contact area with the skin can be kept wider, thereby promoting skin regeneration. , Since the contact area between the pillar discharged to the outside of the body portion 110 and the locking protrusion 340 can also be kept wider, the pillar can be positioned more quickly.

In addition, since the stepped jaws 341a are formed at both ends of the locking protrusion 340 along the spiral, resistance force can be generated in the circumferential direction of the implant 100 inserted into the living body, thereby rotating the implant 100 It can block the change of location.

Hereinafter, the filler treatment process using the molded implant 100 according to the present invention will be described.

First, as shown in FIG. 1, the filler is stored in the cylinder 11 of the injection device 10.

Next, the needle supporter 170 is first mounted on the needle 13 of the injection device 10 in which the filler is stored, and then the needle 13 is inserted into the insertion hole 120 of the body portion 110 to be mounted. The needle 13 may generally be a needle 13 having a sharpened portion at its tip, or may be a cannula used for injection of a conventional filler.

Next, the operator holds the injection device 10 and inserts the body part 110 into the treatment site. At this time, a perforation may be formed in advance in the treatment site, and the treatment site may be directly drilled and inserted using the body part 110 according to the present invention.

When the insertion of the body part 110 is completed in this way, the operator injects the filler into the hollow part 111 of the body part 110 by pressing the piston 12 of the injection device 10.

In this way, while the filler is stored in the hollow part 111 of the body part 110, the filler is discharged to the periphery of the body part 110 through the discharge hole 130 to fill the skin tissue and form a volume. As a result, the filler uniformly filled in the periphery including the body portion 110 improves wrinkles in the skin tissue or restores the skin area that is turned off.

After the injection of the filler is completed in this way, the operator holds the gripping part 173 of the needle supporter 170 with one hand and the injection device 10 from the molded implant 100 with the other hand, as shown in FIG. By separating and removing the filler, the filler procedure is completed.

The molded implant 100 according to the present invention as described above does not require a practitioner to carefully handle the injection device 10, and the body portion 110 through the discharge hole 130 only by pressing the piston 12 Since the filler can be uniformly supplied to the outside of the surface of the skin and there is no need for unreasonable handling of the needle 13 in contact with the skin tissue, side effects such as bruising, swelling, or convulsions can be significantly reduced.

In addition, since the molded implant 100 according to the present invention is disposed in the central region of the treatment site filled with the filler to form a skeletal structure, the volume shape of the filler injected to the specified treatment site can be maintained for a long time.

In addition, the molded implant 100 according to the present invention accurately maintains the position of the molded implant 100 during or after the treatment through the locking protrusions 140 or grooves 160 formed along the length or circumference to increase satisfaction with the procedure. It can be even higher.

As described above, preferred embodiments of the present invention have been described with reference to the drawings, but those skilled in the art will variously modify the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. Can be modified or changed.

10: injection device 13: needle
100: molded implant 110: body
120: insertion hole 130: discharge hole
140,240,340: protrusion 160: groove
170: needle supporter

Claims (10)

A body made of a biocompatible material and having a hollow shape;
An insertion hole provided at one end of the body portion and into which a needle of the injection device is inserted; And
And a plurality of discharge holes disposed to be spaced apart from each other along the length direction of the body part so that the liquid filler filled in the body part is discharged to the outside through the insertion hole. The method of claim 1,
The discharge hole is disposed at a certain distance along the periphery of the surface of the body part,
The discharge hole is a filler injection molded implant, characterized in that disposed to be staggered with each other along the longitudinal direction of the body. The method of claim 1,
Filler injection molded implant, characterized in that the discharge hole is formed to be smaller in size as it approaches toward the insertion hole. The method of claim 1,
The discharge hole is a filler injection molded implant, characterized in that the distance between the discharge holes adjacent to each other is formed as the closer to the insertion hole side. The method of claim 1,
Doedoe formed to protrude from the surface of the body portion, the locking protrusions disposed to be spaced apart from each other along the length direction of the body portion; filler injection molded implant, characterized in that it further comprises. The method of claim 5,
The locking protrusion is a filler injection molded prosthesis, characterized in that the size of the locking protrusion disposed at the entrance side of the insertion hole is formed larger than the size of other locking protrusions. The method of claim 1,
Doedoe formed to protrude from the surface of the body portion, a helical locking protrusion having a predetermined pitch along the longitudinal direction of the body portion; filler injection molded implant, characterized in that it further comprises. The method of claim 7,
A filler injection molded implant, characterized in that incisions arranged to be spaced apart from each other along the spiral are formed in the spiral locking protrusion. The method of claim 1,
A groove portion formed to be recessed from the surface of the body portion and disposed to be spaced apart from each other along the length direction of the body portion; further comprising,
The discharge hole is a filler injection molded implant, characterized in that formed in the groove region. The method of claim 1,
It is mounted between the needle and the body so that a part of the body is exposed to the outside of the body when the body is inserted into the body, and provides an external reaction force opposite to the moving direction of the needle in the process of separating the needle from the body. And a needle supporter for receiving and maintaining the position of the body portion while guiding the movement of the needle.

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