KR20210110014A - Filler syringe - Google Patents

Abstract

The present invention relates to a syringe for injecting a filler. Provided is a syringe for filler injection, including: a needle inserted into a skin layer to inject a filler; a cylinder having an empty space therein; and a piston inserted into the cylinder and injecting the filler into the skin layer by pushing the filler, wherein the needle includes a needle unit and a coupling unit, the cylinder includes an insertion unit, a cylindrical unit and a finger support, and the piston includes a push unit, a body unit and a thumb pressing rod. In addition, the present invention provides a syringe for filler injection, including an injection groove formed by cutting a part of an outer peripheral surface of the needle unit.

Description

Syringe for filler treatment {FILLER SYRINGE}

The present invention relates to a syringe for filler treatment, and more particularly, to a syringe that rapidly and simplifies a filler procedure by repeatedly injecting a solid filler into an injection groove included in a needle in a state in which the needle is inserted into the skin layer.

In general, a syringe is a device used to inject or withdraw a liquid substance or a device for injecting a chemical solution into the tissue of an organism, and is composed of a needle inserted into the body and a piston that pushes the chemical solution.

Filler for cosmetic use is a product that is injected and filled under the skin for correction and visual improvement of other body parts such as wrinkles, depressions, scars, etc. . Representative materials used as fillers include hyaluronic acid, collagen, and the like. These fillers are widely used in the cosmetic field because they can be used on any desired body part with a simple injection technique.

In particular, in recent years, in order to improve the problem of the spreading phenomenon of the existing liquid filler, a solid filler such as a biocompatible polymer has been used. The biocompatible polymer does not cause biorejection, and has a characteristic that it is self-decomposed and absorbed in a living body. A typical example of a solid filler containing polycaprolactone (Polycaprolactone, PCL).

Even in the case of injecting a solid filler as described above, the filler must be injected at least 3 to 4 times or more in order to form a wrinkle region sufficient to have a noticeable visual improvement effect. However, in this case, the procedure is complicated due to the repetitive process of injecting the filler once and removing the needle from the skin layer, then inserting the filler into the syringe again and inserting the needle into the skin layer again to inject the filler, Side effects of skin tissue damage due to insertion were also observed.

Therefore, in the field of fillers for cosmetic surgery, research on a syringe for filler for cosmetic surgery that reduces damage to skin tissue and simplifies and speeds up the repetitive process of injecting filler is continuously being conducted.

Republic of Korea Patent Publication No. 10-2016-0095926

In order to solve the above problem, the present inventors form an injection groove in the needle of a syringe for filler treatment to enable repeated injection of a solid filler through this, and a syringe for filler treatment that can easily inject a solid filler through an elastic part would like to provide

According to the 'first aspect' of the present invention,

The present invention is a syringe for injecting a filler, the needle 100 is inserted into the skin layer to inject the filler; a cylinder 200 having an empty space therein; and a piston 300 inserted into the cylinder and injected into the skin layer by pushing the filler, wherein the needle 100 includes a needle unit 110; and a coupling part 120; the cylinder 200 includes an insertion part 210; Cylindrical part 220; and a finger rest 230; the piston 300 includes a pusher 310; body 320; and a thumb press 330; provides a syringe for filler treatment, including.

In one embodiment of the present invention, the needle part 110 has a tubular shape including an internal space in which the filler is accommodated, and includes an input groove 111 formed by cutting a part of the outer circumferential surface, and the coupling part 120 . includes an inner coupling space into which the cylinder is inserted.

In one embodiment of the present invention, the insertion part 210 is inserted into and coupled to the coupling part 120, and has a cylindrical shape with both ends open, and the cylindrical part 220 is the piston 300 to reciprocate. It has a cylindrical shape that provides an internal empty space so that the finger rest 230 is protruded to support the finger when the piston 300 is inserted into the cylindrical part 220 .

In one embodiment of the present invention, the pusher 310 includes a rubber packing 311 and a pusher member 312 coupled to the upper end of the body, and the pusher member 312 is a rubber packing 311. Coupled to the central portion, the thumb presser 330 has a larger diameter than the cylindrical portion and is formed to protrude.

In one embodiment of the present invention, the input groove 111 is formed with a vertical width length 113 of 10 to 20 mm based on the longitudinal axis 112 of the needle part 110 .

In one embodiment of the present invention, the incision groove 111 has a cutting angle (θ) range of the incision line 114 at both ends with respect to the longitudinal axis 112 of the needle part 110 is 15 to 60˚ is formed with

In one embodiment of the present invention, the incision groove 111 has a cutting angle (θ) range of the incision line 114 at both ends with respect to the longitudinal axis 112 of the needle part 110 is 30 to 60˚. is formed with

In one embodiment of the present invention, the input groove 111 is formed by cutting in the circumferential direction 115 of the outer peripheral surface of the needle part 110, and 30 to 50% of the circumference of the center 116 in the longitudinal direction of the input groove. It is formed with an incision perimeter (117).

In one embodiment of the present invention, the cylindrical part 220 may further include a first elastic part 221 in the empty inner space, and the pusher part 310 passes through the first elastic part 221 . is a form of

In one embodiment of the present invention, the body portion 320 may further include a second elastic portion 321 at the lower end, the second elastic portion 321 is the outer peripheral surface of the lower end of the body portion 320 is the surrounding form.

In the syringe for filler treatment according to the present invention, it is possible to re-inject the solid filler through the injection groove formed in the needle while the needle is inserted into the skin layer, even if the needle is not removed for re-injection into the syringe after the filler is inserted into the skin layer. have Through this, the cumbersome process of needle removal and needle re-insertion after filler injection can not be repeated, and damage to skin tissue due to needle re-insertion can be prevented.

In addition, the syringe for filler treatment according to the present invention has an effect of inserting a solid filler into the skin layer through a pusher using an elastic force even with a small force, including an elastic part.

1 is a perspective view of a syringe for filler surgery according to an embodiment of the present invention.
2 is a cross-sectional view of a syringe for filler surgery including a first elastic part in a cylinder according to an embodiment of the present invention.
3 is a cross-sectional view of a syringe for filler surgery including a second elastic part in a piston according to an embodiment of the present invention.
4 is a perspective view of a needle of a syringe for filler treatment according to an embodiment of the present invention.
5 is a cross-sectional view of a needle portion of a syringe for filler treatment according to an embodiment of the present invention.

Preferred examples are presented to help the understanding of the present invention, but the following examples are provided for easier understanding of the present invention, and the present invention is not limited thereto.

In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and the terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. and definitions of these terms should be made based on the content throughout this specification.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

In the case of a syringe for a conventional filler procedure, there is a limitation in that for repeated injection of the filler, the needle is removed from the skin layer after one filler injection, and the filler is re-injected into the syringe, and then the filler is injected into the skin layer. .

The inventor of the present invention forms an injection groove in the needle of a syringe for filler treatment in order to solve the above problems, and it is easy to re-inject the solid filler into the needle without removing the needle, thereby reducing the time required for the procedure However, it has come to manufacture a syringe for filler treatment that can prevent damage to skin tissue.

The present invention is a syringe for injecting a filler, the needle 100 is inserted into the skin layer to inject the filler; a cylinder 200 having an empty space therein; and a piston 300 inserted into the cylinder and injected into the skin layer by pushing the filler, wherein the needle 100 includes a needle unit 110; and a coupling part 120; the cylinder 200 includes an insertion part 210; Cylindrical part 220; and a finger rest 230; the piston 300 includes a pusher 310; body 320; and a thumb press 330; provides a syringe for filler treatment, including.

The needle 100, the cylinder 200, and the piston 300 according to the present embodiment are important components as a basic unit constituting the injector for filler treatment according to the present invention.

In the present invention as shown in FIG. 1 , the needle 100 includes a needle portion 110 and a coupling portion 120 .

The needle part 110 may have a tubular shape including an inner space in which the filler is accommodated, and may include an input groove 111 formed by cutting a part of an outer peripheral surface. In addition, the coupling part 120 may include an inner coupling space into which the cylinder is inserted.

The injection groove 111 is a groove formed by cutting a portion on the outer peripheral surface of the needle unit 110, and is configured to allow repeated injection of a solid filler while maintaining the state in which the needle is inserted into the skin layer.

The input groove 111 may be 10 mm or more, 12 mm or more, 14 mm or more, and 20 mm or less, 18 mm or less, 16 mm or less, based on the longitudinal axis 112 of the needle part 110. . When the upper and lower width length 113 of the input groove 111 is less than the above range, due to the short vertical width length of the input groove 111, only a portion of the solid filler is injected into the needle. This may not be easy. In addition, when it exceeds the above range, a phenomenon may occur that the solid filler receiving the external force of the pusher member 312 is separated from the input groove 111 in the course of movement in the needle part 110 , the input groove 111 . The upper and lower width length 113 of preferably satisfies the above range.

As shown in FIG. 2, in this specification, the incision angle (θ) is "a straight line AA' connecting the points (A, A') of both ends of the longitudinal axis 112 of the input groove 111" and "a positive One point (A or A') of the ends; and a point (B) formed by meeting the input groove (excluding points at both ends) when the incision line 114 is extended; an AB straight line connecting the It is defined as the angle (θ, degree(˚)).

The input groove 111 has an incision angle θ of 15° or more, 25° or more, 30° or more, 35 of both ends of the incision line 114 based on the longitudinal axis 112 of the needle part 110 . It may be formed to be more than ˚, 40˚ or more, and may be formed to be 60˚ or less, 55˚ or less, 50˚ or less. When the incision angle (θ) range of the input groove 111 is less than the above range, it may not be easy to inject the solid filler into the input groove 111 because the incision area of the outer peripheral surface of the needle part 110 is small. In addition, when exceeding the above range, since the input groove 111 of the needle part 110 may be formed in a sharp shape, a safety problem may be raised when injecting the filler, so the incision angle θ of the input groove 111 may be raised. preferably satisfies the above range.

4 and 5, the input groove 111 is cut in the circumferential direction 115 of the outer peripheral surface of the needle part, and the cut perimeter 117 formed accordingly is the central part 116 in the length direction of the input groove. ) may be 30% or more, 35% or more, 40% or more of the circumference, and may be 50% or less, 45% or less. When the incision perimeter 117 of the input groove 111 is less than the above range, even if the solid filler satisfies the upper and lower width length 113 of the input groove, the incision area of the outer peripheral surface of the needle part 110 is small and the input groove 111 is small. Therefore, it may not be easy to inject the solid filler. In addition, when it exceeds the above range, a phenomenon may occur that the filler injected into the input groove 111 is separated from the input groove 111 in the process of receiving the external force of the pusher member 312 and moving in the needle part 110 . , the upper and lower width length 113 of the input groove 111 preferably satisfies the above range.

The solid filler may be prepared using a biocompatible polymer. For example, polycaprolactone (PCL), polylactic acid (PLA), poly-L-lactic acid (Poly (L-lactic acid)), polyglycolide (Polyglycolide, PGA), polylactic acid -Glycolic acid copolymer (PLGA, Poly lactic-co-glycolic acid), polydioxanone (PDO, Polydioxanone), preferably can be prepared through polycaprolactone (PCL).

The solid filler is a biocompatible polymer, and does not require a separate removal process after the procedure due to its self-degradation and absorption properties in the body. In addition, the solid filler overcomes the problem of post-procedural spread that the existing liquid filler has, and thus has an excellent visual improvement effect on wrinkles caused by the filler treatment. In particular, polycaprolactone (PCL) has been widely used because of its excellent wrinkle improvement effect through filler treatment by inducing and promoting collagen synthesis in the surrounding skin tissue during the decomposition process due to a relatively slow decomposition rate.

As shown in FIG. 1 , in the present invention, the cylinder 200 includes an insertion portion 210 , a cylindrical portion 220 , and a finger rest 230 .

The insertion part 210 is inserted into and coupled to the coupling part 120 and has a cylindrical shape with both ends open, and the cylindrical part 220 is a cylinder providing an internal empty space so that the piston 300 can reciprocate. shape, and the finger rest 230 may have a protruding engaging jaw shape to support a finger when the piston 300 is inserted into the cylindrical portion 220 .

As shown in FIG. 2 , the cylindrical part 220 may further include a first elastic part 221 in the inner empty space, and the pusher part 310 passes through the first elastic part 221 . may be in the form Specifically, after first positioning the first elastic part 221 on the upper end of the empty space inside the cylindrical part 220 , the piston 300 may be inserted into the cylindrical part 220 , and the first elastic part 221 . ), the pusher member 312 of the pusher part 310 included in the piston 300 may penetrate through the center of the piston 300 .

Due to the elastic force of the first elastic part 221 , the piston may return to its original position even after the filler is injected by applying an external force to the thumb presser 330 . Through this, after the solid filler is re-injected into the injection groove 111 in the state in which the needle part 110 is inserted into the skin layer, the filler can be injected into the skin layer with only a small external force again, thereby facilitating repeated injection of the filler. has the effect of making Various types of springs may be used as the first elastic part 221 , and preferably, a coil-shaped spring may be used, but is not limited thereto.

In the present invention, as shown in Figures 1 and 3, the piston 300 is a pusher 310; body 320; and a thumb presser 330;

The pusher part 310 includes a rubber packing 311 and a pusher member 312 coupled to the upper end of the body, and the pusher member 312 is coupled to the central portion of the rubber packing 311, and the thumb presser bar 330 has a diameter greater than that of the cylindrical portion and may be formed to protrude.

The pusher part 310 may be formed by a combination of the rubber packing 311 and the pusher member 312 . The pushing member 312 is a member that pushes the solid filler input into the input groove 111 , and may be inserted and coupled to the central portion of the rubber packing 311 .

As shown in FIG. 3 , the body part 320 may further include a second elastic part 321 at the lower end, and the second elastic part 321 surrounds the outer peripheral surface of the lower end of the body part 320 . may be in the form Specifically, the second elastic part 321 may be fixed to the piston 300 in a form surrounding the outer circumferential surface of the lower end of the body part 320 , and the body part 320 is inserted into the hollow space inside the cylindrical part 220 . Thus, the cylinder 200 and the piston 300 may be coupled.

Due to the elastic force of the second elastic part 321 , the piston may return to its original position even after the filler is injected by applying an external force to the thumb presser 330 . Through this, after the solid filler is re-injected into the injection groove 111 in the state in which the needle part 110 is inserted into the skin layer, the filler can be injected into the skin layer with only a small external force again, thereby facilitating repeated injection of the filler. has the effect of making In addition, because the second elastic part 321 is located at the lower end of the body part 320, it is easy to manufacture a syringe for filler surgery, and the second elastic part 321 is not inserted into the cylinder, so the closed space inside the cylinder It is possible to minimize the possibility of contamination by this foreign material. In addition, because the second elastic part 321 is located at the lower end of the body part 320, the reciprocating motion section of the piston 300 is reduced, so that it is easy to use a syringe during a filler procedure. Various types of springs may be used as the second elastic part 321 , and preferably, a coil-shaped spring may be used, but the present invention is not limited thereto.

1 to 3, the syringe for filler treatment of the present invention provides the advantage of maximizing the skin improvement effect in a desired area by injecting the filler without damaging the skin while simplifying the filler procedure.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will become apparent from the appended claims.

100: needle
110: needle part
111: input groove
112: longitudinal axis
113: vertical width length
114: incision line
115: circumferential direction of the outer peripheral surface of the needle part
116: center of the input groove longitudinal direction
117: incision circumference
120: coupling part
200: cylinder
210: insertion part
220: cylindrical part
230: finger rest
300: piston
310: wheat godfather
311: rubber packing
312: push member
320: body part
330: thumb press

Claims (10)

In a syringe for injecting a filler,
a needle 100 inserted into the skin layer to inject the filler;
a cylinder 200 having an empty space therein; and
The piston 300 is inserted into the cylinder and injects the filler into the skin layer by pushing it.
The needle 100 is a needle portion 110; and a coupling unit 120;
The cylinder 200 includes an insert 210; Cylindrical part 220; and a finger rest 230;
The piston 300 includes a push unit 310; body 320; and a thumb presser 330; including, a syringe for filler treatment.
The method of claim 1,
The needle part 110 has a tubular shape including an internal space in which the filler is accommodated, and includes an input groove 111 formed by cutting a part of the outer circumferential surface,
The coupling part 120 is a syringe for filler surgery, including an inner coupling space into which the cylinder is inserted.
The method of claim 1,
The insertion part 210 is inserted into and coupled to the coupling part 120, and has a cylindrical shape with both ends open,
The cylindrical portion 220 has a cylindrical shape that provides an internal empty space so that the piston 300 can reciprocate,
The finger rest 230 has a shape of a protruding chin protruding to support a finger when the piston 300 is inserted into the cylindrical portion 220, a syringe for filler treatment.
The method of claim 1,
The pusher 310 includes a rubber packing 311 and a pusher member 312 coupled to the upper end of the body,
The push member 312 is coupled to the central portion of the rubber packing 311,
The thumb presser 330 has a larger diameter than the cylindrical portion and is formed to protrude, a syringe for filler treatment.
3. The method of claim 2,
The input groove 111 is
The vertical axis 112 of the needle part 110, the vertical width length 113 is formed in 10 to 20mm, a syringe for filler treatment.
3. The method of claim 2,
The input groove 111 is
The incision angle (θ) range of the incision line 114 at both ends with respect to the longitudinal axis 112 of the needle unit 110 is formed in a range of 15 to 60˚, a syringe for filler surgery.
3. The method of claim 2,
The input groove 111 is
The incision angle (θ) range of the incision line 114 at both ends with respect to the longitudinal axis 112 of the needle unit 110 is formed in a range of 30 to 60˚, a syringe for filler surgery.
3. The method of claim 2,
The input groove 111 is
A syringe for filler surgery, which is formed by incision in the circumferential direction 115 of the outer circumferential surface of the needle part, and is formed with an incision circumference 117 of 30 to 50% of the circumference of the center 116 in the longitudinal direction of the injection groove.
The method of claim 1,
The cylindrical part 220 may further include a first elastic part 221 in an empty inner space,
The pusher part 310 is a type of penetrating the first elastic part 221, a syringe for filler treatment.
The method of claim 1,
The body portion 320 may further include a second elastic portion 321 at the bottom,
The second elastic part 321 is in the form of surrounding the outer peripheral surface of the lower end of the body part 320, a syringe for filler treatment.

Images