JPH10216149A - High frequency hair-removing needle and its contamination removing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operatability and the durability of a needle which is used for a high frequency hair removal, and improve the removing method for contamination adhering to the needle accompanying usage. SOLUTION: The base end of a needle main body 1 is fixed to the leading end of a needle holding rod 2, and on the surface of the needle holding rod 2 from the base part of the needle main body 1, an insulating coat 4 of an electrically insulating enamel is provided by a thickness of less than 50μm, and a graduation 5 is applied to the needle main body 1 of the insulating coat, and in addition, the leading end of an attaching handle 3 is fixed to the base end of the needle holding rod 2, and the control of the piercing depth into a hair hole is facilitated by the graduation 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency oscillator, in which a needle body at the tip of the oscillator is pierced into the skin of a living body, a high-frequency current flows through the hair shaft of the hair to be depilated, and a heating action near the hair root is caused by the heat generation. The present invention relates to a hair removal needle for performing hair removal by destroying a subcutaneous tissue, and a method for removing dirt attached to the hair removal needle.

[0002]

2. Description of the Related Art Conventionally, this kind of high-frequency hair removal needle has
For example, the one described in Japanese Utility Model Publication No. 61-36257 is known, and the following devises have been made to the hair removal needle. In order to prevent black spots from being formed on the upper part of the epidermis and subcutaneous tissue due to burns caused by high-frequency heating, the base of the needle body and the surfaces of the holding rods are insulated and coated with Teflon resin to a thickness of 0.05 mm. The insulating coating is obtained by pre-polishing the surface of the needle main body.
A 5 mm thickness is cut off, and an insulating coating is applied thereon to a thickness of 0.05 mm so that a step is not formed between the bare portion of the needle main body and the insulating coating portion. The tip of the needle body is hemispherical so as not to damage the hair follicle.

[0003]

However, when the insulating coating having a thickness of 0.05 mm is provided as described above, the outer diameter of the needle main body is inevitably increased, so that there is a disadvantage that it is difficult to insert the needle into a fine pore. In addition, if the insulating coating is thick and uneven, the pores cannot be smoothly inserted into the pores, and the length of the insulating coating is also uneven, making it difficult to control the penetration depth into the pores. Practitioner's voice.

Further, the hair removal needle becomes dirty during use and the hair removal effect is reduced, so that it is necessary to clean the needle. At that time, cracks easily occur in the insulating coating around the boundary between the base of the needle body and the holding rod. There is a possibility that the insulating effect is reduced.
In addition, the edges of the insulating coating may be damaged during use, and if the insulating coating is damaged, each time the hair removal needle is pierced into the pores, a small wound is made on the skin, which may cause bacterial infection. Was.

Accordingly, the present invention provides an improved high-frequency hair removal needle which can improve the operability, improve the durability of the hair removal needle, and prevent bacterial infection due to the treatment in order to respond to the voice of the practitioner. And a method for preventing the contamination.

[0006]

According to the present invention, there is provided a high-frequency hair removal needle according to the present invention, in which a base end of a conductive needle body is fixed to a distal end of a needle holding bar, and the needle body has a base. An insulating coating of an electrically insulating enamel is provided on the surface of the needle holding bar to a thickness of less than 50 μm to graduate the needle body portion of the insulating coating, and the base end of the needle holding bar is fixed to the tip of the mounting handle. It is characterized by doing. This scale makes it easier for the practitioner to control the depth of the needle to be inserted into the pores. In addition, an electrically insulating enamel having less heat resistance, mechanical properties, and adhesion than a fluororesin such as Teflon is less than 50 μm. By coating to a thickness, the thickness unevenness of the insulating coating is eliminated, and furthermore, cracks are not generated, thereby improving the operability of the depilatory needle and improving the durability.

In addition, by removing dirt attached to the needle body while the protective tube is attached and fixed to the insulating coating, the insulating coating is protected so that the end of the insulating coating is not damaged. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a high-frequency hair removal needle according to the present invention will be described below with reference to the drawings. FIG. 1 shows the entire high-frequency hair removal needle according to the present invention. The outer diameter of the needle body 1 is 0.18 mm or 0.12 mm, and the material is stainless steel (SUS27 or 28). Also the total length a
Is 6 mm for an outer diameter of 0.18 mm and 5 mm for an outer diameter of 0.12 mm. The needle main body 1 is fixed by caulking a base end of 1 mm to a tapered portion 2a formed at a distal end of a needle holding bar 2 having an outer diameter of 1 mm. The tip 1a of the needle body 1 is hemispherical so that it does not break through the follicles during use. The needle holding bar 2 has a total length of 15 mm, and has a base end (4 m long).
m) is fixed by caulking to the tip of the hollow pipe-shaped mounting handle 3. The mounting handle 3 has an outer diameter of 2.4 mm, an inner diameter of 1 mm, and a total length of 29.5 mm.
Is formed in the tapered portion 3a, and the outer diameter of the terminal end of the tapered portion 3a is 2 mm.

An insulating coating 4 is provided on the surface of the portion of the needle body 1 protruding from the needle holding bar 2 and the portion of the needle holding bar 2 protruding from the mounting handle 3 as shown in FIG. The insulating coating 4 is made of, for example, polybenzimidazole (PBI) made of Hoechst Industries and has a high electrical insulation grade of NPB.
I enamel (or PBI enamel) with a thickness of 50 μm
The film is directly formed to a thickness of less than 30 ° C. and heat-treated at 300 ° C. for 30 minutes to firmly adhere. A scale 5 is provided on a portion of the insulating coating 4 provided on the needle body 1. Reference numeral 6 denotes a male screw portion formed on the outer peripheral surface of the distal end portion of the mounting handle 3.

Thus, the insulating coating 4 of NPBI enamel
By providing, the high-frequency hair removal needle N of the present invention has higher heat resistance than Teflon resin, and also has excellent wear resistance and self-lubricating and sliding properties.

Next, the use of the high-frequency hair removal needle N according to the present invention will be described. FIG. 3 shows a state in which the high-frequency hair removal needle N of the present invention is connected to a known high-frequency generator. The high-frequency generator 11 includes a high-frequency oscillator 12, an amplifier 13, and an output circuit 14, and has a maximum output of 150 W and a generation frequency of 5-1.
The one at 0 MHZ is used. At the time of treatment, the patient grips the electrode plate 16 connected to the terminal 15, pierces the needle body 1 of the high-frequency hair removal needle N connected to the terminal 17 into the pore of the epidermis 18 to be depilated, closes the foot switch 25, and The subcutaneous tissue including the hair root is destroyed by applying a high-frequency current of 0.3 to 0.6 mmA to the skin.

Then, as shown in FIG. 4, the needle body 1 is inserted between the hair shaft 19 and the hair follicle 20 and inserted until the tip of the needle body 1 reaches the hair root 21. At this time, the needle body 1
By reading the graduation 5 of the insulating coating 4 provided at the end, the tip of the needle body 1 can accurately reach the position of the hair root 21.

In this state, when the foot switch 25 is depressed and the circuit is closed, a high-frequency current flows instantaneously (about 1/4 second), and the hair root 21 and the sebum wire 24 are dielectrically heated and destroyed. As can be understood from FIG. 4, the needle body 1 is inserted along the hairs 23 to be depilated, so that the sebum which is considered to be related to the regeneration of the hairs 23 as well as the roots 21 for regenerating the hairs 23 is provided. It completely breaks down to around line 24. For this reason, hair regeneration can be almost completely prevented, and permanent hair removal can be achieved.

Next, a method of removing the stain on the needle main body 1 by this hair removal treatment will be described with reference to FIG.
In the figure, reference numeral 7 denotes a protective tube which is attached to the surface of the insulating coating 4 provided on the needle main body 1 and the needle holding bar 2 to protect the insulating coating 4. When the outer diameter of the needle main body 1 is 0.12 mm, the protective tube 7 has an outer diameter of 2.2 mm and an inner diameter of 1.2 mm.
mm, a female threaded nut 8 is fixed to the base end side, and the female threaded nut 8 is screwed and fixed to a male threaded portion 6 provided at the distal end of the mounting handle 3. Then, the whole of the insulating coating 4 is covered with the protective tube 7.

The needle body 1 is put into a washing machine (not shown) in a state where the protective tube 7 is attached and the insulating coating 4 is covered and protected, and the insulating coating 4 is cleaned without being damaged by washing. be able to. For this reason, it is possible to prevent bacteria from entering the wound portion of the insulating coating 4 and causing bacterial infection based on the bacteria.

[0016]

As described above, the high-frequency hair removal needle according to the present invention has excellent heat resistance, mechanical properties and adhesiveness in a thin and uniform thickness by using an electrically insulating enamel on the needle body. By providing an insulating coating, the insulating coating does not peel or crack at its boundary,
Does not hurt the skin during the procedure. Further, the depth of insertion of the needle body into the skin can be easily controlled by the scale provided on the insulating coating, and the operability can be improved. And by protecting the insulating coating with a protective tube,
Since dirt can be removed without damaging the insulating coating, there are beneficial effects such as improvement in durability of the insulating film and prevention of bacterial infection of the skin.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a high-frequency hair removal needle according to the present invention.

FIG. 2 is an enlarged longitudinal view of a main part of the high-frequency hair removal needle shown in FIG.

FIG. 3 is an explanatory view showing a state in which the high-frequency hair removal needle according to the present invention is attached to a high-frequency oscillator.

FIG. 4 is a diagram illustrating the use of a high-frequency hair removal needle according to the present invention.

FIG. 5 is an enlarged longitudinal sectional view of a main part of the high-frequency hair removal needle when a protective tube is attached.

[Explanation of symbols]

 1 Needle body 2 Needle holding rod 3 Mounting handle 4 Insulation coating 5 Scale 7 Protection tube

Claims (2)

[Claims] 1. A base end of a needle main body having conductivity is fixed to a front end of a needle holding bar, and an insulating coating of an electrically insulating enamel is applied to the surface of the needle holding bar from the base of the needle main body to a thickness of less than 50 μm. A high frequency hair removal needle, wherein a scale is provided on the needle body portion of the insulating coating, and a base end of the needle holding bar is fixed to a tip end of a mounting handle. 2. A method for removing dirt from a high-frequency hair removal needle, wherein the dirt attached to the needle body is removed while a protective tube is adhered and fixed to an insulating coating provided on the needle body and the needle holding bar.