JPH0133173B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a device for permanently damaging hair removal and subsequent growth, and more particularly, a device for permanently damaging hair removal and subsequent growth. This hair removal device applies a current and conducts this high-frequency current downward along the inside of the hair stalk (hair pulp) to reach the base (matrix) part, permanently damaging this part and removing the hair.

Various types of devices have been used to remove unwanted hair. Many relatively recently developed devices utilize electrical high frequencies to destroy the dermal papilla at the base of the hair stalk.

One technique that has been used for many years is to insert a needle into the hair follicle adjacent to the hair, reach the dermal papilla, and then
Electrical high-frequency waves are applied to this needle to damage the dermal papilla that causes hair to grow. A commonly used device of this type is a combination needle and tweezers. This type of device is described in US Pat. No. 3,054,405,
No. 2894512 and No. 853096. The disadvantage of these devices is that they require the needle to be inserted subcutaneously.
It causes irritation, swelling and burns to the tissue.

Recently, hair removal devices that utilize charging tweezers that grasp hair at a considerable distance from the skin and apply high frequency electrical waves directly to it have come into common use. Such devices are illustrated in US Pat. Nos. 2,888,927, 2,417,530 and 1,071,978. Since such devices do not require subcutaneous needle insertion, tissue pain and irritation are eliminated. However, this type of device takes a long time to remove the hair, does not sufficiently kill the hair's ability to regrow, and often results in severe burns by placing the tip of the tweezers too close to the skin's surface. is occurring.

In addition to these drawbacks, all of the above types of devices cannot be used in sensitive areas such as the nostrils and ear canals without severe pain or the risk of severe burns. Can not.

It is an object of the present invention to provide a hair removal device which overcomes all the above-mentioned disadvantages of prior art devices.

Another object of the present invention is to provide an easy-to-use device that eliminates the difficulty of operation found in previously used devices. A further object of the present invention is to effectively utilize the central part of the hair (pillar pulp) to create a direct electrical path from this device to the base (matrix) part and the dermal papilla, thereby damaging the tissues and cells of the base (matrix) part. The goal is to cause enough damage to ensure that future hair regrowth is eliminated.

According to the present invention, the object is to provide a pair of hair engaging surfaces facing each other to sandwich the hair, at least one of which is made of a conductive material;
supporting the pair of bristle engaging surfaces at respective ends, respectively;
a pair of supporting members configured to be relatively movable so as to bring the pair of bristles engaging surfaces into contact with and away from each other; completely surrounding the periphery of the pair of hair engaging surfaces to prevent transmission of the high frequency current connected to the engaging surfaces and the high frequency current along the extension direction of the surface of the at least one hair engaging surface. It has a flat insulating surface with a predetermined width, and comprises a high-frequency current insulating material disposed between each of the pair of hair-engaging surfaces and the pair of support members, and the hair-engaging This is achieved by a hair removal device characterized in that the envelope surface of each surface is flat, and the insulating surface forms substantially the same plane as the corresponding envelope surface.

Another object of the invention is to provide a special removal device that is easy to use, even by a novice inexperienced in the use of the device, yet provides excellent results.

Yet another object of the present invention is to provide a new removal device that operates faster than before, is painless, and does not burn or irritate the skin or underlying tissue.

An additional object of the present invention is to
To provide a hair removal device that can easily remove hair from areas that are difficult to access with the device.

Yet another object of the present invention is to apply a sufficient amount of electrical high frequency waves to the proper part of the hair and conduct it through the hair pulp to ensure that the matrix remains intact without arcing or burning the skin. The aim is to provide a special hair removal device that will not damage the skin.

Another object of the present invention is to provide an easy-to-operate hair removal device in which hair grabbing and electrical application are performed almost simultaneously.

A still further object of the present invention is to provide a hair removal technique that substantially reduces the time required for effective removal of hair.

Yet another object of the invention is that the area of contact with the bristles is specially configured to concentrate and isolate high frequency energy or current and to substantially increase electrical conduction between the interior of the hair shaft and the device. An object of the present invention is to provide a hair removal device.

Another object of the present invention is to provide a hair removal device that does not cause burns even though the part that applies high frequency energy to hair is close to the skin.

Another object of the invention is to provide a hair removal device that has a variety of special shapes and is easily replaceable. A specific example of the hair removal device according to the present invention will be described below based on the drawings.

With particular reference to FIGS. 1 and 2, the hair, shown schematically at 10, has an upper portion 12 extending above the skin surface or tissue, and an upper portion 12 extending below the skin surface and just below the epidermis 18. It has an inner lower handle portion 14 that runs adjacent to the oil line 16 located therein. Inner lower handle 14
is in contact with the outer sheath layer 20.

The hair growth is located in the base or matrix region, shown schematically at 22. This includes:
It contains dermal papilla 24 which receives nourishment through blood vessels 26. It is this matrix portion 22 that must be damaged by reaching electrical energy in the form of high-frequency current if future hair growth is to be disrupted. This is because all of the hair above the matrix portion 22 is dead fiber.

The hair stalk, which includes the upper part 12 and the inner and lower stalk parts 14, is mainly made up of a combination of vine-shaped fiber cells.
On the outside, this fibrous material is covered by a fibrous layer of bracts, forming an outer skin that engages the sheath 20. The center of the hair stalk is occupied by an axially extending pith consisting of angular cells clustered in nuclei along the central axis of the hair. The structure of this cell contains several elements, among them iron. Although the hair pulp is not a good conductor in the ordinary sense, it is a better conductor than the outer peripheral cell structures. The current electrode is connected to the dermal papilla 2, as shown by the dotted arrow in FIG.
4, the matrix portion 22 and the adjacent cellular structure 28 immediately above the matrix at the base of the bottom of the hair stalk 14.

Referring specifically to FIG. 2, the free end of a tweezers having a pair of supporting arms 32, 50, shown generally at 30, is shown gripping the bristles 12.

The arm 32 shown on the right has an insulating coating 34 as a high-frequency current insulating material and a hair-engaging surface 36 that is flat and has ridges, that is, the envelope defined by each of the ridges is formed flat. has.
Note that the lowermost portion 38 as the protruding end of the support arm 32 is located below the lowermost portion of the bristle engaging surface 36. The bottom of the hair-engaging surface 36 is located above the lowest portion 38 of the arm 32 in this device where a sufficient distance 40 is required between the lowest portion of the hair-engaging surface 36 and the surface of the skin 44. It is a necessary structure for successful operation. The lowermost tip 38 of the arm 32 and the outer surface 42 of the insulating coating 34
It is recognized that the thickness from is also part of the distance 40. In other words, the insulating coating, that is, the insulating layer 34 has a flat envelope surface continuously defined by each of the ridges in order to prevent transmission of electrical energy in the direction of extension of the bristle-engaging surface 36. A flat insulating surface having a predetermined width completely surrounds the periphery of the bristle-engaging surface 36, and the insulating surface is substantially coplanar with the corresponding envelope surface. Such distance 40 is set to approximately 1 mm in typical practical applications.

Additionally, a non-conductive insulating layer as a high frequency current insulating material surrounds the flat bristle engaging surface 36, as shown at 146 and 48, and is comprised of a high frequency insulating material such as that used in PF cables. There must be. Teflon is an example of a very high quality high frequency insulation material.

The other arm 50 of the tweezers is connected to arm 32.
and an envelope similar to that shown in the insulating layer 52, the low skin-engaging surface, and the hair-engaging surface 36 of the arm 32, i.e., defined by each of the aforementioned ridges. The conductive surface includes a bristle engaging surface 56 having a flat envelope defined by respective bumps or teeth such that the surface is formed flat.

An insulating layer extends around the bristle-engaging surface as shown at 58 and 60, respectively, and faces the insulating layer of arm 32, creating a sealed portion between both insulating layers. That is, each of the insulating layers has a flat insulating surface having a predetermined width that completely surrounds the periphery of the bristle-engaging surface 36, and the insulating layers have portions of the insulating surface that are in planar contact with each other and are sealed. This sealed portion prevents the high-frequency current from flowing outward from the periphery of the bristle-engaging surface 36.

As shown at 62, the hair 12 will be observed to be shorter. It has been found that substantially better results are obtained when the hair is short or shorn, and especially when the hair body is covered by a hair-engaging surface.

The high frequency current transmitted along the metal arm 32 penetrates into the interior of the hair stalk 12 and extends downwardly along the central pulp of the hair stalk 12, as shown by dotted line 66, until it reaches the base of the hair stalk 28. , the matrix portion 22, and the dermal papilla 24, resulting in thermal damage to cells in these portions,
It paralyzes blood vessels 26 and destroys their ability to grow hair in the future.

This is clearly due to the concentration effect of high-frequency energy caused by the relatively small area of the bristle-engaging surface (substantially 1/300 inch (1 inch = 2.540 cm or less)) and the loss of this high-frequency energy. Closed insulation arrangement which substantially reduces the aforementioned bristle engaging surface 3
The insulating layers each have a flat insulating surface having a predetermined width that completely surrounds the periphery of the insulating layer 6, and each of the insulating layers has a flat insulating surface having a predetermined width that completely surrounds the periphery of the insulating layer. This is possible by configuring the sealed portion to block the flow of the high frequency current from the periphery of the bristle engaging surface 36 in an outward direction from the periphery.

Both of these elements clearly materially assist in the penetration of the high frequency current into the inner core of the hair, which acts as a better conductor than the outside of the hair and directly to the dermal papilla. This is in marked contrast to previous devices in which the energy of the high frequency current traveled along the exterior of the hair and almost never reached the nipple.

The shortness of the hair and the relative proximity of the location where the high frequency current or radio wave energy is applied to the hair were also found to be important factors. Clearly in short hair, the loss of radiance decreases;
On the other hand, the application of high frequency current in close proximity to the skin, such as at distance 40, clearly reduces the internal resistance of the high frequency current energy waves traveling along the hair pulp by a significant amount.

The apparatus according to the invention is shown schematically in FIG. 3 and in more detail in FIGS. 4-7.

With particular reference to FIG. 3, the length of the device 70 of the present invention is such that it can be held in the palm of the hand as shown schematically, and is preferably about the width of a finger, but less. The device 70 is connected to a high frequency power source 72 via a coaxial cable 74. The housing casing has an upper portion 76 and a lower portion 78 each made of an insulating material such as nylon or other non-conductive material. The lower portion 78 of the casing has a nose 80 through which the tip of the tweezers projects, generally indicated at 30. This nose is held internally within the housing by a flange 81.

A fingertip pressable button 82 closes the tweezers and simultaneously activates an electrical circuit switch and dimming light source 86, as shown in FIG. When pressed down, it also engages a switch and provides high frequency energy conducted from power source 72 via coaxial cable 74 by electrically connecting it to the bristle engaging surface of tweezers tip 30. A magnifying lens 84 is provided to help hair grabbing be done more quickly and accurately during operation of the device.

A cross-sectional view of the hair removal device 70 is shown in FIG. 5, and the mechanical and electrical interrelationship of the components will be described below.

The upper portion 76 and lower portion 78 of the casing each include
Hollow cylindrical parts made of plastic or other non-conducting material that fit together and can be easily removed.
Pointed and removable end 80
is located at the front of the housing 78 and is a hollow recess through which the end 30 of the forceps can protrude. Tweezers end 3
0 are combined into one by pressing the button 82, and the light sources 8 installed immediately after the simultaneous button are combined into one by pressing the button 82.
6 is also lit.

Power is supplied through two electrical wires and a coaxial cable 74 running through the rear of the device and through a plastic grommet 88. The support element and electrode receiving socket 90 have two axial passages on the front side. One extends through the socket and support pin receiving member 92. The second one receives a straight pin 94. Inside the third axial passage 96 run two control voltage lines leading to a switch located immediately after the button 82. The plug 98 of the electric tweezers receives a lower arm 100 as a support member and an upper arm 102 as a support member of the tweezers, and is housed in the casing 76, and
It has pin 104 of socket 90. Both the electrode receiving socket 90 and the forceps plug 98 are made of high frequency insulator.

Removal of the forward nose portion 80 of the casing exposes the forward interior of the casing and allows the forceps to be easily removed from the socket plug by simply pulling the tip 30 of the forceps.
Note that the pins can be separated from the electrode receiving sleeve 90. A new forceps with a differently shaped end 30 and an identical forceps plug can then be quickly inserted into the electrode receiving socket 90. The nose portion 80 has two internal surface engaging portions 81 that hold it in place. These are placed on the sides of the forceps so that they do not conflict with each other, and allow the device with the newly installed forceps to be immediately operated.

FIG. 6 is an end view of the hair removal device of FIG. 4, with the end 80 from which the tweezers end 30 protrudes directly visible. Note that there is sufficient space at the annular end of casing 78 for various types of tweezers ends. Additionally, note that a magnifying lens 84 is positioned adjacent the tip of the tweezers to better visualize the hair and skin area directly beneath the tweezers.

FIG. 7 is an enlarged view of the switch portion in FIG. 5. The switch is positioned adjacent to or in contact with the upper arcuate portion of the upper arm 102 of the forceps, and when the upper arm 102 of the forceps is removed at section 106, the internal metal member and the entire length of the forceps are removed. The extended outer insulation coating is exposed.

Button 82 is located in passage 110 of lower housing 78.
a lower tubular portion 108 slidably received within the lower tubular portion 108;
have. A metal leaf spring 112 extends beyond the bottom of button 82 and maintains a light spring-like engagement with the button. This metal plate spring 112
has contacts 114 and is secured in a plastic receiving slot 116 at the other end of the housing. A lower leaf spring 118 is similarly supported, extending outward toward the bottom of the button and positioned directly below and spaced from the contact 114. It has a contact 120.

The schematic diagram in FIG. 8 shows the functionality and electrical wiring of the unit. A control voltage is applied to electrical wire 122 that connects leaf spring 118. Pressing the button 82 forces the leaf spring 112 downwardly, closing the electrical contacts and simultaneously contacting the upper arm 102 of the forceps. When contacts 114, 120 close (FIG. 7), the electrical signal is connected to the power source via arm 102. The wire 126 or another wire that is in contact with the leaf spring is
It is connected to the control circuit of the power supply 72. The control circuit supplies high frequency current or energy to pin 92 via coaxial cable 74.

Pin 104 is connected directly to the lower arm 100 of the tweezers. When the two ends of the tweezers are brought together by pressing a button, the upper arm 102 is applied to the hair sandwiched between the two ends as shown in FIG.
Voltage is supplied via. The upper arm is used to transmit electrical high frequencies for safety factors. This is because the tip of the lower arm 100 repeatedly comes into contact with the skin, which tends to cause poor insulation or current leakage, and in this case, burns that may occur can be prevented. Figures 9 through 12 show the tips of various types of tweezers.

FIG. 9 shows the most commonly used oval shape, which consists of an oval tip 128 and a bristle-engaging surface 130. The tip corresponds to the tip shown in FIG.
It should be noted that the insulating surface completely surrounds the surface 130 and extends to all sides behind it, as shown at 132, even covering the outside of the leading edge. Although the ridges of the bristle-engaging surface 130 are noticeable in this view, it should be noted that this view is a significant enlargement of the actual product. The size of the hair engagement surface is within 1/16 inch (1 inch ≒ 2.540 cm) in width,
Preferably, the length is within 1/8 inch (1 inch ≒ 2.540 cm). The range of allowable cross-sectional areas varies depending on usage, frequency, and other factors, but is generally approximately 1/50
0 inch (inch≒2.540cm) is the minimum, 1/10
0 inch (1 inch≒2.540 cm) to 1/200 inch (1 inch≒2.540 cm) to 1/200 inch (1 inch≒2.54 cm) is preferable. The ridges are made with either fine sandpaper or coarse sandpaper and look like slight scratches.

The use of ridged surfaces has been shown to increase conductivity and reduce the time it takes for the dermal papilla to be destroyed by heat. The rough ridges press down on the hair,
Creates a better conduction path to the inner part of the hair.

FIG. 10 shows a circular tip 134 having a circular bristle engaging surface 136. FIG. In this figure, the bristle-engaging surface 136 has a grid-like unevenness.

FIG. 11 shows a tapered square tip 138 having a tapered bristle engaging surface 140. Although the figure shows a type of rough surface different from the ridges and the grid-like unevenness, modifications can be considered from this type. The figure shows a bead with fine irregularities similar to sandpaper.
Indicates metal surface type. Peripheral surface 142 provides sufficient spacing between the outer periphery of the engagement surface and the tip to prevent burns.

In addition, ridges, which are formed on various hair-engaging surfaces,
The ridged surface, ridges, lattice-like unevenness, rough surface, and finely uneven bead metal surface each define a flat envelope surface as described above.

FIG. 12 is a cross-sectional view taken along line 12--12 of FIG. 11. The ramp 144 descends to the arm as shown. The insulator covers the entire arm of the tweezers,
Electricity is prevented from being radiated from parts other than the hair engaging surface 140. The insulator has a flat insulating surface having a predetermined width that completely surrounds the periphery of the bristled engagement surface 140, and the insulating surface is coplanar with the engagement surface 140. This insulator is described in relation to the tweezers end 30 in FIG. 2, and the insulator covers the tip seamlessly (148 in the figure) and continues to the back of the arm as shown.

FIG. 13 is a cross-section of the end of another type of tweezers having a plastic arm, usually made of radio-frequency non-conducting material, and a bristle-engaging surface 150 to which a radio-frequency conducting wire 152 is connected. The surface of the forceps arm 156 as a support member has an inclined surface 154 and a purely round tip 158.

It is preferable to use the hair removal device after cutting the hair to a desired length. It has been found that reducing the length of the hair substantially increases the capacity of the device and reduces the time required for hair removal. The preferred hair length is approximately 1/16 inch (1 inch ≒
2.540cm) to 3/16 inch (1 inch≒2.540cm)
It is. An effective way to cut hair from the front is to
First, shave your skin and wait 2-3 days for the hair to grow to the desired length. The length of the hair at that time will be approximately as shown in Figure 2.
At this length, the bristles are long enough to be pinched into the tweezers and held in place on the bristle engaging surfaces as shown in FIG. 2, and to fit completely between the two bristles engaging surfaces. When short hairs are completely inserted between the two hair-engaging surfaces, there is no radiation of electrical energy, and if the hair length is short enough, it reduces the resistance between the hair and the electric field in the matrix or dermal papilla. I know that it will.

Figure 3 shows the forceps in an upright position when used substantially perpendicular to the skin or at a slight angle.

The operator presses the end of the forceps against the skin and
Allow the tweezers end to make an indentation in the skin surrounding the bristles and then press button 82 to engage the tweezers end 30 with the hair as shown in FIG. The insulation part consists of a flat surface.

Pressing the pushbutton 82 simultaneously closes the switch assembly and provides electrical high frequency waves to the arm 32 of FIG. 2 and through the hair engaging surface 36 to the portion of the hair that exits the skin. What should be noted here is that the distance indicated by 40 in Figure 2 above is important, and the distance between the skin surface and the lower part of the hair-engaging surface, and the The insulator extending to the mating surface prevents arcing or radiation of high frequency currents. Therefore,
Voltages from 100 to 600 volts can be used without causing burns or arcing. Previous devices could not use voltages higher than approximately 250 volts.

During operation, the tweezers are held against the skin for the necessary time to release the hair. It is important to note that rather than pulling the hair, the tweezers are held in place for the time necessary to completely destroy the matrix.

According to biopsies using forceps devices that have been used up until now, the current does not reach the inside of the hair (hair pulp);
It burns along the outside of the hair and slightly below the skin, and usually does not reach the sebaceous line 16 shown in Figure 1. According to this device, the electrical high frequency waves always reach the papilla via the hair pulp, and as shown in the figure, as long as the tweezers are held in place, the matrix can be completely destroyed by heat. No heat damage occurs to the upper part of the hair. The tweezers are not moved until the hair itself is released from the matrix. The hair lifts slightly as it is released. The time until then varies, but
Once the hair in the matrix has completely disintegrated, it is released. In other words, the hair lifts up very slightly and comes out on its own. The operator holds the tweezers and separates the tweezers with the hair between the hair-engaging surfaces from the skin surface.

Unlike conventional devices, a device has been invented that can permanently remove hair without pain or burns. The time it takes to remove hair varies depending on the quality of the hair, and takes from 2 to 20 seconds, but most hair is removed within 10 seconds. This time is substantially shorter than other types of forceps devices. Unlike experiments with previous devices, the dermal papilla was permanently destroyed in all cases. Because the hair pulp is used as a conduction path for high-frequency current to the matrix, sufficient thermal destruction occurs to prevent hair from growing back. Biopsies show that virtually all cellular structures in the matrix, including the base of the hair, are removed and even the dermal papilla and blood vessels are destroyed by heat.

This was made possible by effectively concentrating high-frequency current on the part of the hair close to the skin. For this purpose, it is important that the application point be away from the periphery of the device, that is, that the periphery of the device be covered with a high-frequency insulating material. Ordinary electrical insulators are not suitable. moreover,
The distance between the application point and the periphery of the device must be such that current leakage does not cause skin burns. This determines the distance shown at 40 in Figure 2, which is approximately 1/32 inch.
2.540cm).

By concentrating a high frequency current of 1 to 1000 MHz, the high frequency current reaches the hair pulp and can be transmitted below the hair. The insulator also reduces radiation loss.

Also important is that the high frequency current, or high frequency energy, is applied, and the presence of an insulator on the bristle engaging surface allows the high frequency energy to be applied close to the skin without the risk of arcing experienced with traditional tweezers. can be applied. Previous devices must be kept substantially away from the skin surface within a range of 1/8 inch to 1/36 inch. In contrast, with this device, high frequency energy can be preferably applied from a distance of 1/32 inch (1 inch≈2.540 cm) or less. This proximity contributes to the effectiveness of the device.

This insulated tip allows the operator to easily engage the bristles at this close distance. This is because the tip can be placed on the skin without fear of burns. This is not possible with conventional devices, including those with insulators.

The tip of the arm must not be sharp to reduce arcing tendency. Previous devices were unaware of this and had their arms tapered toward the tip, resulting in substantial arcing and burn problems.

The location of the hair-engaging surface, the structure of the arm tip, and the type of insulation prevent radio frequency energy from transferring to the skin surface.

The above elements are unique to previous types of tweezers.

Furthermore, if the arms have a sharp shape in any way, it is extremely difficult to effectively accommodate a defined thickness of insulation, and it is extremely difficult to effectively accommodate a defined thickness of insulation, and also to maintain close contact with each other in opposing arms. It is also extremely difficult to create a structure to maintain it.

The effectiveness of the device is enhanced by the use of a smaller bristle engaging surface than previously used. This is due to the aggregation or concentration of high frequencies in contact with the hair. Preferably, the area of the surface engaging the bristles is at least 1/2 that of conventional devices.

What should be noted here is the outer periphery of the hair-engaging surface, especially the
The lower edge near the skin surface should be rounded or flat, without sharp edges. Pointed shapes increase the thickness of the insulating material between the engaging surface and the skin to prevent arcing and burns, reducing this distance, which is typically kept at 1/32 inch. must be increased.

The surface of the hair-engaging surface is also important. By gripping or firmly pressing the outer scaler surface of the hair, the rough surface allows high frequencies to reach the hair's pulp, which serves as a conductor, relatively well, and has a substantial high-frequency conduction effect. is increasing.

Another factor that increases the effectiveness of the device is that the hair is cut relatively close to the skin, as shown in FIG. Shorter bristles reduce radiation escaping from the portion of the bristles above the bristle engagement surface, allowing more high frequency current to be transmitted to the matrix portion.

Accordingly, the present invention provides a hair removal device that uses electrical high frequency waves that travel through the hair pulp and permanently destroy the hair matrix. Does not cause any discomfort to the user,
Alternatively, hair removal is effectively performed without the risk of burning or bleaching the skin tissue. Moreover, hair is permanently removed in one treatment. Conventional devices require several treatments to kill one matrix or dermal papilla.

In addition, in the hair removal device of the present invention, when the hair-engaging surfaces are brought into contact with each other so as to sandwich the hair to be removed between the pair of hair-engaging surfaces, the high-frequency current insulating material is The bristle-engaging surfaces, each having a flat insulating surface and a flat enveloping surface substantially coplanar with the insulating surface, are flush with each other without substantially creating a gap therebetween. In addition, since the insulating surface has a predetermined width and completely surrounds the periphery of the bristle-engaging surface, the high-frequency current supplied from the high-frequency power source flows along the bristle-engaging surface. However, the high-frequency current cannot flow outward from the periphery of the hair-engaging surface, and therefore the high-frequency current is short-circuited on the surface of the skin near the skin where the hair to be removed grows. It flows intensively along the hair to be removed without flowing, and can reach the follicle of the hair to be removed, that is, the matrix part, with little attenuation, and can efficiently and quickly remove the hair. , without causing burns on the surface of the skin near the skin where the hair to be removed grows, that is, without causing any discomfort to the person whose hair is being removed, or without causing discoloration of the skin tissue due to burns. To safely, efficiently and quickly perform hair removal work without causing any danger.

Although the invention has been described in various embodiments, the invention is capable of other modifications. The present invention is generally in accordance with the principles of the present invention, and applies to those known or commonly used in the art not disclosed herein, as well as to the principal features set forth above, and to the scope of the present invention. It is intended to cover any variations, uses or adaptations.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a single hair and its associated tissue, and FIG. 2 is an enlarged, partially cut cross-section of the hair in FIG. 1 and a position near the hair.
3 is a plan view of the hair removal device, FIG. 4 is a plan view of the hair removal device of FIG. 3, and FIG. 5 is a plan view of the hair removal device of FIG. 4. 6 is an end view of FIG. 4, FIG. 7 is a partially enlarged sectional view of the switch and light source of FIG. 5, and FIG. 8 is a sectional view taken along line 5-5 of the hair removal device. ,
A schematic wiring diagram of the electric circuit and switch circuit of the hair removal device; FIG. 9 is a plan view of the tip of the oval hair gripping portion of the hair removal device; FIG. 10 is a plan view of the tip of the circular hair gripping portion. , FIG. 11 is a plan view showing another shape of the tip of the hair gripping part of the hair removal device, and FIG.
The cross-sectional view in the figure, FIG. 13, is a cross-sectional view showing another type of tip structure. 22...Matrix part, 24...Dermal papilla, 3
0... Tweezers tip, 32, 50... Arm, 34, 52... Insulating layer, 36... Hair engaging surface,
72...Power supply, 74...Coaxial cable, 76,7
8...Casing, 80...Nose, 82...Button, 84...Magnifying lens, 86...Light bulb, 90
...Socket, 92...Pin receiving member, 98...
Plug, 100... Tweezers lower arm, 102
... Tweezers upper arm, 116, 118 ... Leaf spring, 114, 120 ... Contact, 1
30, 136, 142... Various hand engagement surfaces.

Claims (1)

[Scope of Claims] 1. A pair of hair-engaging surfaces facing each other to sandwich the hair, at least one of which is made of a conductive material, and a pair of hair-engaging surfaces at each end thereof; A high-frequency current is applied to a pair of support members that respectively support the surfaces and are configured to be relatively movable so as to bring the pair of bristle-engaging surfaces into contact with and away from each other, and at least one of the bristle-engaging surfaces formed of the conductive material. a high-frequency power source connected to the hair-engaging surfaces to supply a high-frequency current, and a peripheral edge of the pair of hair-engaging surfaces to prevent transmission of the high-frequency current along a direction in which the at least one hair-engaging surface extends. and a high-frequency current insulating material disposed between each of the pair of hair-engaging surfaces and the pair of support members. The hair removal device is characterized in that the envelope surface of each of the hair engaging surfaces is flat, and the insulating surface forms substantially the same plane as the corresponding envelope surface. 2. The hair removal device according to claim 1, wherein the width of the insulating surface is approximately 1/32 inch (1 inch≈2.540 cm). 3. Claim 1, wherein the pair of support members are a pair of elongated arms, the outer surfaces of which are covered with the high frequency current insulating material.
The hair removal device according to item 1 or 2. 4 The area of the pair of hair engaging surfaces is 1/50 inch (1
inch≒2.540cm) to 1/500 inch (1 inch≒
The hair removal device according to any one of claims 1 to 3, characterized in that the hair removal device is 2.540 cm). 5 The pair of hair engaging surfaces are approximately 1/16 inch (1/16 inch) wide.
inch ≒ 2.540 cm) height 1/8 inch (1 inch ≒
The hair removal device according to any one of claims 1 to 3, characterized in that the hair removal device is 2.540 cm). 6. The hair removal device according to any one of claims 1 to 5, wherein a portion of the high frequency current insulating material that contacts the skin is not sharp. 7. The hair removal device according to any one of claims 1 to 6, wherein the pair of hair engaging surfaces have finely uneven surfaces. 8. The hair removal device according to any one of claims 1 to 7, wherein the pair of support members includes an elongated hand-held housing made of an electrically insulating material. . 9 A small finger-operated actuation button is disposed at the end of the housing proximate the end and mechanically presses one of the pair of support members for actuating the pair of support members. The hair removal device according to claim 8, wherein the hair removal device is connected to. 10. The hair removal device according to claim 9, wherein the housing includes electrical switch means for controlling application of high-frequency current to the at least one hair-engaging surface. 11. Claim 10, characterized in that said button mechanically interengages with said switch means for actuating said switch means.
The hair removal device described in section. 12 at least one of the pair of support members is connected to an electrical socket assembly;
12. Hair removal device according to any one of claims 9 to 11, characterized in that the assembly allows rapid removal of the at least one support member from the elongated housing. 13. At least one of the supporting members has a conductive path whose periphery is insulated by a high frequency insulating material,
The hair removal device according to any one of claims 1 to 12, characterized in that a high frequency current is transmitted along the conduction path. 14. A hand-held housing made of an electrically insulating material and formed into an elongated hollow shape, a pair of elongated support members disposed within the housing and having a distal end protruding from one end of the housing, and one of the pair of support members. a first hair-engaging surface attached to the protrusion of the first hair-engaging surface; and a first hair-engaging surface disposed at a position facing the first hair-engaging surface so as to cooperate with the first hair-engaging surface to clamp the hair. a second bristle-engaging surface attached to the other protrusion of the pair of support members; a high-frequency power source; and a peripheral edge of at least one of the first bristle-engaging surface or the second bristle-engaging surface. a high-frequency insulating material provided between the distal end of the support member, at least one of the first and second hair-engaging surfaces has electrical conductivity, and the high-frequency power supply is electrically conductive. said at least one hair-engaging surface having a property;
The high-frequency insulating material has a predetermined width that completely surrounds the periphery of the pair of hair-engaging surfaces in order to prevent transmission of the high-frequency current along the extension direction of the at least one hair-engaging surface. a flat insulating surface, disposed between each of the pair of bristles engaging surfaces and the pair of support members, an envelope surface of each of the bristles engaging surfaces being flat; A hair removal device characterized in that the insulating surface forms substantially the same plane as the corresponding envelope surface. 15 The support member is about 1/8 inch (1 inch≒
15. The hair removal device according to claim 14, having a width of 2.540 cm). 16. The hair removal device according to claim 14 or 15, wherein the surface of the support member is made of a high frequency insulating material. 17. A portion of the periphery of the at least one hair-engaging surface connected to the high-frequency power source located close to the skin is approximately 1/32 inch (1 inch≈2.540) smaller than the skin contact surface of the high-frequency insulating material. The hair removal device according to any one of claims 14 to 16, characterized in that the hair removal device is located at a distance of about 1 cm). 18. Any one of claims 14 to 17, characterized in that one end of the housing has a movable nose portion, and when the movable nose portion is removed, it is connected to the inside of the housing. The hair removal device according to item 1. 19 The housing is provided with a quickly operable switch means adjacent to one end of the housing and configured to control the connection between the high frequency power source and the at least one bristle engaging surface. Claim 14 characterized in that
The hair removal device according to any one of Items 1 to 18. 20. wherein said switch means includes a button pressed by an operator's finger and is configured to move said pair of support members and cause said pair of bristle engaging surfaces to engage each other. A hair removal device according to claim 19. 21 the support member extends within the housing towards the other end of the housing and reaches a support element for fixing the support member; the support member extends in the housing towards a first end of the support member; 20. The invention according to any one of claims 14 to 20, characterized in that the bristle-engaging surface is configured to be able to move rapidly toward the second bristle-engaging surface. Hair device. 22. Hair removal device according to claim 21, characterized in that the support element is a movable plug, through which a high-frequency current flows. 23. Claim 20, wherein the button is disposed at an end of the support member and, when pressed, contacts the support member and further engages the pair of bristle engaging surfaces with each other. The hair removal device according to any one of Item 22. 24. The hair removal device according to any one of claims 14 to 23, wherein the support member is an arm.