JP2021126213A - Depilation needle - Google Patents

Abstract

To provide a depilation needle for a high frequency depilator not scratching a skin, even when piecing the depilation needle into the skin other than pores by mistake.SOLUTION: In a depilation needle 1 for a high frequency depilator, a flat circular tip part 13 is formed on the tip of a cone-shaped insertion part 12 to pores becoming thinner gradually toward the needle tip. Thus, even if a depilation operator presses the tip of the depilation needle onto a skin other than pores by mistake, the depilation needle 1 is prevented from breaking through the skin and invading inside, to thereby prevent the skin from being scratched.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hair removal needle for a high-frequency hair removal device for removing unwanted hair on human skin.

A high-frequency hair removal device has been developed to remove unwanted hair from the human body. This hair removal device is set so that a hair removal needle provided at the tip thereof is inserted into the pores of the human body, energized, a high-frequency current is instantaneously applied, and the hair root is burned off by the heat. Therefore, the tip of the hair removal needle is sharply pointed (see Japanese Patent Application Laid-Open No. 58-179110).

Jitsukaisho 58-179110

In the above-mentioned hair removal needle described in Japanese Patent Publication No. 58-179110, the needle tip is sharply pointed.
When inserted into the pores, it reaches the hair root smoothly, but in the case of a novice surgeon, it often happens that the skin other than the pores is accidentally stabbed when piercing the pores. At that time, since the conventional hair removal needle has a sharp tip, it easily pierces the skin deeply and may injure the patient's skin. Naturally, the patient is distressed and results in avoiding hair removal surgery.

The present inventor has improved the above-mentioned drawbacks and improved the tip shape of the hair removal needle so that the tip of the hair removal needle does not penetrate the skin when the operator accidentally pierces the skin other than the pores. Is.

In order to solve the above problems, the hair removal needle for a high-frequency hair removal device of the present invention is provided with a conical pore insertion portion that is continuous with the tip of the round bar of the main body of the hair removal needle and gradually narrows toward the needle tip. The tip of the pore insertion portion is cut at a right angle to the axis to form a flat circular tip. The actual size of the conical pore insertion portion is about 2.5 mm in length, and the diameter of the thicker base is 0.15 mm to 0.23 mm depending on the type of depilatory needle.

The diameter of the circular tip is set to a size that allows it to easily penetrate into the pores, but when it pierces the human skin, it exerts a resistance that cannot be easily penetrated by the force of a human fingertip alone. Has been done. The specific diameter of the circular tip is preferably 0.07 mm ± 0.01 mm.

The surface of the pore insertion portion is mirror-finished by electrolytic polishing, and the surface is coated with an insulating film at a distance of a predetermined dimension from the tip portion thereof. As the type of insulating film, a synthetic resin film, a ceramic film, or the like is used.

The hair removal needle for the high-frequency hair removal device of the present invention forms a flat circular tip at the tip of the conical pore insertion portion that gradually narrows toward the needle tip, so that the hair removal operator mistakenly applies it to the skin other than the pores. Even if the tip of this hair removal needle is pressed against it, the tip is provided with a circular tip that is large enough to exert resistance that cannot be easily penetrated by the force of a human fingertip alone, so that the hair removal needle is on the skin. It is prevented from breaking through and invading the inside, and it has the effect of not damaging the skin and as a result not causing pain to the patient. In addition, even if the surgeon traces the skin around the pores with the tip of the hair removal needle to search for the pores, the pores will not be pierced into the skin, so that the pores can be easily found and the work efficiency can be improved. There is also an effect.

FIG. 5 is a cross-sectional view of a main part showing a state in which the hair removal needle of the present invention is attached to the hair removal needle fixing member. FIG. 5 is a cross-sectional view showing a state in which the hair removal needle of the present invention is connected to the hair removal needle fixing member and the intermediate connecting member. Sectional view of high frequency hair remover. Block diagram of high frequency generator. FIG. 5 is a comparative explanatory view of the shapes of a conventional hair removal needle for a high-frequency hair remover and a hair removal needle of the present invention. Explanatory drawing which shows the state which the hair removal needle was inserted into a pore.

The best mode for carrying out the present invention will be described by way of examples.

FIG. 1 shows a state in which the hair removal needle according to the embodiment of the present invention is attached to the hair removal needle fixing member, and the hair removal needle 1 is a conical pore insertion portion continuously provided on a base 11 made of a round bar. It is composed of a flat circular tip portion 13 formed by cutting 12 and its tip at a right angle to the axis. This hair removal needle 1
The base portion 11 of the hair removal needle is inserted into the insertion hole 21 of the hair removal needle fixing member 2 and fixed by caulking. As shown in FIG. 2, the hair removal needle fixing member 2 is formed of an L-shaped conductive member. An insulating film 23 is applied to the surface thereof, and the tip of the insulating film 23 extends to the exposed portion of the pore insertion portion 12 of the hair removal needle. The base 22 of the hair removal needle fixing member 2 is inserted into an insertion hole 31 provided at the tip of an intermediate connecting member 3 made of a conductive member and fixed by caulking. The base 32 at the other end of the intermediate connecting member 3 is detachably inserted into the concave hole 42 of the split pedestal 44 of the high-frequency hair remover 4 shown in FIG.

As shown in FIG. 3, the high-frequency hair remover 4 is fixed by screwing a split pedestal 44 formed from a conductive lot to the tip of a holder 45 made of insulating plastic, and a recess provided at the tip of the pedestal 44. The base 32 of the intermediate connecting member 3 is inserted into the hole 42, and the insulating cap 43 is split into the pedestal 44.
It is fixed by covering it with a screw. The center of the holder 45 is hollowed out and the hollow hole 46
Is formed. A cord 47 is pulled along the hollow hole 46, and its tip is connected to the electric controller 5 of FIG.

The electric controller 5 is composed of a high frequency generator 51, a high frequency transmitter 52, and an amplifier 53, and is connected to the high frequency hair remover 4 through a cord 54. In the figure, 55 is a plate for conducting electricity into the patient's body and is held by the patient during surgery. 56 is a foot switch.

FIG. 5 shows a comparison of actual dimensions in order to show that the shape of the hair removal needle of the present invention is different from that of a conventional commercially available hair removal needle.
That is, the length a of the tapered portion 71 of the conventionally commercially available hair removal needle (A) is 0.4 mm, and the diameter b of the rod 7 is 0.15 mm to 0.23 mm.
Since the gradient of the tapered portion 71 is represented by b × 1/2 ÷ a, the gradient S1 is 18/100 to 2
It will be 8/100.
On the other hand, in the hair removal needle (B) of the present invention, the length c of the tapered portion (pore insertion portion 12) is 2.5 mm.
The diameter d of the rod portion (base portion 11) is 0.15 mm to 0.23 mm, and the diameter e of the circular tip portion 13
Is 0.07 mm.
Since the gradient S2 of the tapered portion of the hair removal needle of the present invention is (de) × 1/2 ÷ c, the gradient S2
Is 1.6 / 100 to 3.2 / 100.
As described above, since the gradient of the tapered portion of the hair removal needle of the present invention is extremely gentle as compared with the gradient of the conventional hair removal needle, the resistance when the hair removal needle is inserted into the pores becomes extremely gentle, and the pain of the patient is relieved. be able to.

FIG. 6 shows a state in which the hair removal needle 1 is inserted into the pores of the patient. The hair removal needle 1 is inserted into the pores 61, and the tip thereof reaches the hair root 63 of the hair 62. If the foot switch 56 of the high frequency generator 5 is stepped on in this state, a high frequency current momentarily flows to the hair root portion 63 to generate high heat, and the hair root 63 can be burnt off and hair can be removed.

If the tip of the hair removal needle 1 is accidentally pierced into the skin 6 near the pore 61 during this hair removal operation, the flat area of the circular tip portion 13 of the tip of the hair removal needle cannot be easily penetrated by the force of a human fingertip alone. Because it is sized to be resistant, the needle tip cannot pierce the skin and does not damage the patient's skin.

Since the hair removal needle of the present invention does not damage the patient's skin in this way, when searching for pores, the operator can find the pores by lightly touching the needle tip with the patient's skin and tracing the pores. It can facilitate the finding work and improve the efficiency of the hair removal work.

1 Hair Removal Needle 11 Base 12 Pore Insertion 13 Circular Tip 2 Hair Removal Needle Fixing Member 3 Intermediate Connecting Member 4 High Frequency Hair Removal Device 42 Concave Hole 43 Cap 44 Split Pedestal 45 Holder 5 Electric Controller 6 Skin 61 Pore 62 Hair 63 Hair Root

Claims (5)

A conical pore insertion portion that is continuous with the tip of the round bar of the main body of the hair removal needle and gradually narrows toward the needle tip is provided, and the tip of the pore insertion portion is cut at a right angle to the axis to form a flat circular tip. A hair removal needle for a high-frequency hair removal device, which is characterized by being formed. The diameter of the circular tip is set to a size that allows it to easily penetrate into the pores, but when it pierces the human skin, it exerts a resistance that cannot be easily penetrated by the force of a human fingertip alone. The hair removal needle for a high-frequency hair removal device according to claim 1, wherein the hair removal needle is characterized by being used. The hair removal needle for a high-frequency hair remover according to claim 1 or 2, wherein the diameter of the circular tip is 0.07 mm ± 0.01 mm. The hair removal needle for a high-frequency hair remover according to any one of claims 1 to 3, wherein the surface of the pore insertion portion is mirror-finished by electrolytic polishing. The hair removal for a high-frequency hair remover according to any one of claims 1 to 4, wherein the pore insertion portion is separated from the tip portion by a predetermined dimension and the surface thereof is coated with an insulating film. needle.

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