JP2002272859A - Light energy treatment instrument of dermatophytosis using liniment jointly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light energy treatment instrument of dermatophytosis using liniment jointly. SOLUTION: After applying infiltrating liniment changing light to heat to an affected part, light 15 of 600 nm to 1500 nm wavelength is converged by a lens 16 and the skin 20 of the affected part is irradiated with the light 15 for a set time. Lest the skin is damaged such as gets burned with the irradiation light, the skin is cooled by a cooling device using cooling gas, cooling air, a Peltier element or cooling water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-energy athlete's foot treatment apparatus combined with a coating agent for treating athlete's foot by light irradiation.

[0002]

2. Description of the Related Art A general treatment method using a drug for athlete's foot includes an external treatment using an ointment or an aqueous solution and an internal treatment.
An ointment or an aquatic coating solution containing an undecylenic acid, which is a kind of unsaturated fatty acid, an imidazole-based or a triazole-based antifungal agent, is used as an external medicine. Oral medications include fluconazole and itraconazole.

[0003] In addition to such a drug treatment method, there is a method of irradiating an affected part with ultraviolet light or infrared light and far infrared light.

[0004]

The Trichophyton bacillus is located 2 to 2 times from the epidermis.
Because it is infested at a depth of 4 mm, treatment with drugs is difficult to effect in a short period of time, and requires a long-term treatment to some extent, and requires patience. It often happens. Once treatment is stopped, Trichophyton becomes resistant to the drug used, and the same drug often becomes less effective when treated again. Also, it is said that oral medicines such as itraconazole have drug side effects such as causing liver damage.

Irradiation of infrared rays or far infrared rays to a temperature high enough to kill Trichophyton parasitic at a depth of 2 to 4 mm from the epidermis causes damage to the epidermis such as burns.
Less effective due to difficulty. In addition, ultraviolet irradiation is a problem because it may cause skin cancer if it is irradiated with such powerful ultraviolet rays as to reach the inside of the skin.

[0006]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention applies a permeable light / heat conversion coating agent to an affected area, and then sets a laser beam or a flash lamp having a set wavelength. The present invention provides an application-type light-energy athlete's foot treatment apparatus that irradiates light energy of the above-mentioned type to a set area of an affected part for a set time, and heats and kills the surrounding keratinous tissue where Trichophyton inhabits to 60 ° C. or more.

In the present invention, the light energy is 600 to 1
Light with a wavelength of 500 nm is used. Before irradiating light,
An ointment mixed with a substance that converts light into heat, for example, carbon or the like, or an aqueous coating agent is applied to the affected area. The coating agent is mixed with a lotion or alcohol so that carbon or the like can easily penetrate.

[0008] The light energy athlete's foot treatment device with a coating agent is provided with a device for generating a cooling gas, cooling air or cooling water for cooling the epidermis, or a Peltier device. As a method for cooling the skin, a cooling gel or the like may be applied to the skin for cooling, or may be used in combination with the cooling device.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a light energy athlete's foot treatment device according to an embodiment of the present invention. Body frame 11
Contains a power supply for a light energy generator, a cooling device therefor, a computer for control, and a skin cooling device. The light energy generator may be housed in the main body frame 11 or housed in the handpiece 13. When the optical energy generating device is housed in the main body, the cable 12 houses an optical fiber for transmitting light. Light energy generator is handpiece 13
In some cases, the cable 12 may contain a cooling water hose for cooling the optical energy generator. The cable 12 contains a cooling gas for cooling the skin, a cooling air, or a hose for cooling water, a control line, and a power supply line. Handpiece 13
An optical system 14 for converging light is provided at the tip of the optical system 14.
The light converged from the tip of the target is irradiated to the affected part for a set time.

FIG. 2 shows an example of the optical system 14 installed at the tip of the handpiece 13. The laser light or flash lamp light 15 having a wavelength of 600 to 1500 nm is converged by the lens 16 and irradiated to the epidermis 20 of the affected part. Injecting a cooling gas or cooled air through a pipe 17 for a set time immediately before irradiation so that the epidermis of the affected area does not cause damage such as burns due to light irradiation, and lowering the temperature of the epidermis to 5 ° C or less. Cool. The area 19 to be injected is set slightly larger than the area 18 of the convergent light.

FIG. 3 shows another method of cooling the epidermis 20 of the affected part. A contact part 21 having a flat or convex shape in contact with the epidermis of the affected part is cooled to 5 ° C. or less by a Peltier element 23 via a fixing bracket 22. The contact 21 is preferably made of a high-density material such as sapphire, fused silica, or similarly optically clear glass or plastic. The contact portion 21 may be cooled by supplying cooling water, cooling gas, or cooling air instead of the Peltier element 23.

FIG. 4 shows another method for cooling the epidermis 20 of the affected part. The lens 16 and the contact part 21 are provided with an inlet 25 and an outlet 2 for a fluid such as cooling water or gas to enter and exit.
6 are located in a housing 24 having both.
The contact portion is cooled by flowing the cooled fluid into the housing 24, and the epidermis of the affected part is cooled to 5 ° C. or less.

Another method of cooling the skin is to apply a cooling gel to the skin. The cooling gel may be applied only with the cooling gel or may be used in combination with the skin cooling device.

The treatment operation of the light energy athlete's foot treatment device combined with a coating agent configured as described above will be described.

Trichophyton, a factor of athlete's foot, is 2 to 4 times from the epidermis.
It is parasitic on the stratum corneum at a depth of mm. Although it is a very viable fungus, it is weak to heat and dies when heated above 60 ° C.

It is known that light having a wavelength of 600 to 1500 nm easily penetrates soft tissues such as the stratum corneum, and has a penetrating length of 1 to 5 mm. In addition, wavelength 600nm ~ 150
Light having a wavelength of 0 nm is easily absorbed by water constituting 70% or more of the stratum corneum.

Before irradiating light, an ointment or an aqueous coating agent mixed with a substance that converts light into heat, for example, carbon, is applied to the affected area. The coating agent is mixed with a lotion or alcohol so that carbon or the like can easily penetrate.

A light having a wavelength of 600 nm to 1500 nm is irradiated with an optical system by 1 mm square to 10 mm square or 1 mm to 10 mm in diameter.
Irradiate the affected area after converging to a small spot. 4 from the epidermis
The energy required to heat the peripheral keratinous tissue of Trichophyton inhabiting a depth of mm to 60 ° C., the temperature at which Trichophyton kills, is approximately 0.4 J for a 1 mm square spot,
In the case of a 0 mm square spot, it is about 40J.

Since the circumference of Trichophyton is covered with a coating agent that converts this light into heat, the wavelength of 600 nm to 1 mm squared to 10 mm square or 1 mm to 10 mm converged.
By irradiating the affected area with light of 500 nm and energy of 0.5 J to 40 J for a set time, the surrounding tissue of Trichophyton is 60 ° C.
With the above heating, Trichophyton dies.

The irradiation light may be continuous light emission (CW) or pulsed light emission (QCW). Either is selected and used depending on the condition of the affected part. The irradiation time is also selected according to the condition of the affected part.

Depending on the condition of the affected part, light energy of 40 J or more may be applied.

It is preferable to cool the epidermis to 5 ° C. or less in order to reduce pain caused by irradiation with light energy and to reduce damage such as burns. The cooling method includes a method of injecting a cooling gas or cooling air immediately before irradiation, and a method of pressing a contact portion cooled by a Peltier element or cooling water against the skin. Alternatively, a cooling gel may be applied to the skin and cooled. The cooling gel may be applied only with the cooling gel or may be used in combination with the skin cooling device.

[0023]

As described above, according to the present invention, the treatment of athlete's foot, which was conventionally difficult to completely cure, can be carried out by applying a permeable light-to-heat conversion coating agent to the affected area in advance and then applying the wavelength of 600 nm. By irradiating the affected part with light of １1500 nm, it can be completely cured.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a light energy athlete's foot treatment device combined with a coating agent according to an embodiment of the present invention.

FIG. 2 shows an example of the optical system used in FIG.

FIG. 3 shows an example of a method for cooling the epidermis of an affected part.

FIG. 4 shows another method of cooling the epidermis of the affected area.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Body frame 12 ... Cable 13 ... Handpiece 14 ... Optical system 15 ... Light of 600nm-1500nm 16 ... Lens 17 ... Pipe 18 ... Convergent light area 19 ... Area to be injected 20 ... Skin 21 ... Contact part 22 ... Fixed Fitting 23 ... Peltier element 24 ... Housing 25 ... Inlet 26 ... Outlet

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (reference) A61P 43/00 121 A61P 43/00 121 F term (reference) 4C082 PA01 PA02 PC02 PG13 PJ04 PL05 RA01 RA10 RE17 RG06 4C086 AA01 HA06 MA01 MA04 NA14 ZB35 ZC75

Claims (6)

[Claims] 1. A light energy generating device and an epidermis cooling device are provided, and by using a light energy heat conversion coating agent in combination, the keratinous tissue surrounding the Trichophyton living in the keratin is heated to 60 ° C. or more to kill Trichophyton. A light energy athlete's foot treatment machine combined with a coating agent. 2. The light energy generator according to claim 1, wherein
The light energy athlete's foot treatment device combined with a coating agent according to claim 1, wherein light having a wavelength of 500 nm is used. 3. The coating composition according to claim 1, wherein said coating composition is an ointment or an aqueous coating composition in which a substance such as carbon which converts light into heat and alcohol which easily penetrates the skin are mixed. Light energy athlete's foot treatment machine. 4. The light energy athlete's foot treatment device with an application agent according to claim 1, wherein the skin cooling device uses cooling gas or cooling air. 5. The device according to claim 1, wherein the skin cooling device is a Peltier device or
The light energy athlete's foot treatment device combined with a coating agent according to claim 1, 2, 3 or 4, wherein cooling water is used. 6. The light energy athlete's foot treatment apparatus with an application agent according to claim 1, wherein a cooling gel or the like is used in addition to the skin cooling device.