JPH10286316A - Skin tissue improving device which irradiates gas which is changed into plasma - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the condition of a skin tissue under various kinds of configurations by a method wherein a gas is fed to a plasma generating part, and changed into a plasma, and is cast on a skin tissue. SOLUTION: From a gas supply source 4, an inert gas such as helium and argon (helium is especially preferable) is fed to a plasma generating part 3 in a casing 2 as a raw material gas. In the plasma generating part 3, an electrode 7 for high frequency discharging, which is connected to a high frequency high voltage power source 6, is provided, and a plasma P is generated in the fed raw material gas. This gas which is changed into a plasma is jetted to the outside from a plasma gas jetting nozzle 8. A counter electrode plate 9 which is connected to the high frequency high voltage power source 6, is fitted on the body surface of a person to be treated, and a high frequency high voltage is applied between the electrode 7 and the counter electrode plate 9. Thus, the gas which flows between both electrodes 7, 9 is changed into a plasma, and the body surface skin tissue between the electrodes 7, 9 the plasma gas is cast, and the condition can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for improving the condition of skin tissue, and more particularly, to the treatment of skin disease by irradiating skin tissue with plasma gas.
The present invention relates to a skin tissue improving device that performs a treatment such as hair growth and / or cosmetic surgery.

[0002]

2. Description of the Related Art Conventionally, various methods have been practiced for treatment of skin diseases such as athlete's foot, worms, prevention and improvement of alopecia, or improvement treatment of skin tissue condition such as prevention and removal of spots and bruises. It has been. For example, in the field of treatment of skin diseases such as athlete's foot and bugs, pharmacological therapy such as application of a drug to an affected area or administration of an oral medicine or surgical treatment such as irradiation with ultraviolet rays is mainly performed. On the other hand,
In the field related to the prevention and improvement of alopecia, administration of a hair restorer containing a crude drug as a main component and a certain diet therapy are mainly performed. Further, in the field of so-called cosmetic surgery for removing spots, freckles, bruises, or useless body hairs deposited on the skin, surgical procedures for physically removing the spots, bruises, and the like are mainly used.

[0003]

As described above, in the conventional methods relating to the treatment for improving the condition of the skin tissue, although there are some differences among the above-mentioned respective fields, all of them are mainly symptomatic approaches. . Therefore, it is necessary to perform various treatments with different aspects according to the purpose on the subject (including humans and domestic animals; the same applies hereinafter), but the expected effect is limited to a specific symptom or condition. Will be done. For this reason, for example, a subject who wants to improve two or more different forms of skin tissue condition such as a skin disease and cosmetic surgery imposes a time constraint and an economic burden to receive a number of different treatments. Was something.

[0004] The present invention provides a means of treatment which is fundamentally different from the conventional technique for improving the condition of skin tissue, and the purpose of the present invention is to provide various means by activating skin tissue. An object of the present invention is to provide a general-purpose skin tissue improving device that promotes improvement of skin tissue condition.

[0005]

According to the present invention, there is provided a plasma generating section for generating plasma in a gas flow, and a gas supply means for supplying gas to the plasma generating section. A skin tissue improving device (hereinafter, referred to as a tissue tissue improving device), which converts the gas supplied to the plasma generating unit into plasma, and irradiates the plasma gas to the skin tissue to improve the condition of the skin tissue. "The skin tissue improving device of the present invention").

[0006] In the present specification, "improving the condition of skin tissue" refers to suppressing the progress of unusual morphological abnormalities and symptoms appearing in skin tissue, or reducing the condition of healthy skin tissue. It is a general term for restoring,
It is not limited to improving a particular skin condition. Typically, treatment of infectious skin diseases such as athlete's foot, worm, etc., prevention of progression of alopecia (including juvenile and mature) and promotion of hair growth, or removal of spots, freckles, bruises, useless body hair, etc. (Including those belonging to the category of so-called cosmetic surgery) and the like correspond to the treatment for improving the condition of skin tissue in the present specification. In this specification, “skin tissue” is a generic term that includes the epidermis, dermis, hair, subcutaneous adipose tissue, and other accessory organs (such as cell tissues related to hair growth and pigment-producing cells).

[0007] The skin tissue improving apparatus of the present invention supplies a gas for forming a plasma (hereinafter referred to as "raw material gas") to the plasma generating section, and the plasma is generated in the gas flow composed of the raw material gas in the plasma generating section. (Typically by electromagnetic energy based on high-frequency discharge or the like),
Then, the skin tissue improving method of the present invention is characterized by irradiating the generated plasma gas to the skin tissue. The gasified gas stream contains excited molecules, radicals, ions, and the like (hereinafter, collectively referred to as “excited particles”) generated as a result of dissociation of gas molecules accompanying plasma generation. . By supplying these excited particles to the target skin tissue, the skin tissue is physiologically activated, and as a result, the condition of the skin tissue can be improved. Therefore, according to the skin tissue improvement device of the present invention, the condition of the skin tissue can be improved by irradiating the skin tissue with the plasma gas containing the excited particles.

A preferred skin tissue improving device provided by the present invention is the skin tissue improving device of the present invention, further comprising a casing having an opening which can be in close contact with the surface of the skin tissue. The portion is provided inside the casing and in the vicinity of the opening. Here, by bringing the opening close to or in contact with the skin tissue, the gasified plasma generated in the plasma generating unit is exposed to the opening. The skin tissue is directly irradiated from the part (hereinafter, referred to as “second skin tissue improvement device of the present invention”).

In the second skin tissue improving apparatus of the present invention, a plasma generating portion for generating a plasma gas is disposed inside a casing having an opening that can be in close contact with the skin tissue surface. For this reason, in the second skin tissue improvement device of the present invention, the inside of the casing opening can be placed in a plasma gas atmosphere generated by the plasma generating unit. Therefore, in the second skin tissue improvement device of the present invention, the casing opening can be made to approach or come into contact with the skin tissue to reduce the emission of the plasma gas into the atmosphere and to reduce the plasma gas. The high-concentration plasma gas can be directly irradiated to the target skin tissue in the vicinity of or in contact with the opening in the atmosphere. That is, according to the second skin tissue improvement device of the present invention, the above-described excited particles can be temporarily supplied to the target skin tissue in a large amount, so that the physiological activation of the skin tissue can be further promoted. Thus, the condition of the skin tissue can be improved at an early stage.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the skin tissue improving apparatus of the present invention will be described below with reference to the drawings. In addition,
FIG. 1 is a system schematic diagram of a skin tissue improvement device 1 of the present invention according to the present embodiment. FIG. 2 is an explanatory diagram schematically showing the flow of the raw material gas and the generation of the plasma gas in the skin tissue improving apparatus 1 of the present invention.

As schematically shown in FIG. 1, a skin tissue improving apparatus 1 of the present invention is roughly
And the casing 2 in which the plasma generating section 3 is provided. The plasma generating unit 3 and an external gas supply source 4 are connected via a gas pipe 4a, and a raw material gas (preferably helium (He), argon (Ar)) And in particular, helium is preferable.). In the casing 2, a gas supply pipe 5 (see FIG. 2 described later) for supplying a raw material gas to the plasma generating section 3 is formed so as to be connected to the gas pipe 4a. The gas supply pipe 5 communicates with the plasma gas jet nozzle 8 provided at the tip of the casing 2 via the plasma generator 3, and converts the plasma gas generated in the plasma generator 3 to the plasma as it is. It can be ejected to the outside through the oxidizing gas ejection nozzle 8. On the other hand, the plasma generator 3 is provided with a high-frequency discharge electrode 7 (see FIG. 2) connected to an external high-frequency high-voltage power supply 6. In the skin tissue improving device 1 of the present invention, the high-frequency high-voltage power supply 6 is not limited to a device connected from the outside, but includes a high-frequency high-voltage power supply unit 16 built in a device body 10 as described later. (See FIG. 4) is also suitable as the skin tissue improving device 1 of the present invention.

As shown in FIG. 2, by applying a high-frequency voltage from the high-frequency high-voltage power supply (AC) 6 to the electrode 7 of the skin tissue improving apparatus 1 of the present invention,
A so-called high-frequency discharge can be generated in the surroundings.
At this time, the gas supply source 4 supplies the plasma
By supplying a source gas such as helium to the periphery of the electrode 7 (that is, around the electrode 7), the plasma P can be generated in the gas flow flowing in the vicinity of the electrode 7 by the electromagnetic energy associated with the high-frequency discharge. The plasma gas containing the excited particles can be ejected from the plasma gas ejection nozzle 8 to the outside. For example, as shown in FIG. 2, when a counter electrode 9 separately connected to the high-frequency high-voltage power supply 6 is previously mounted on the body surface of the subject S, a high-frequency high-voltage is applied between the electrode 7 and the counter electrode 9. Is applied, the gas flowing between the electrode 7 and the counter electrode plate 9 is turned into plasma. Then, it is possible to irradiate the plasma gas with the weak high-frequency current to the skin tissue on the body surface of the subject S existing between the electrode 7 and the counter electrode plate 9. At this time, the current flowing between the electrode 7 and the counter electrode plate 9 is set to a high frequency (preferably 200 kHz or more), and the raw material gas used when using the skin tissue improving apparatus 1 of the present invention is used. By appropriately maintaining the distance between the electrode 7 and the subject S in accordance with the type (preferably, helium) of the subject S (that is, by not excessively bringing the electrode 7 close to the skin tissue of the subject S), Large current is prevented from flowing. As a result, the subject S does not receive an electric shock but only feels a slight warmth.

In the skin tissue improving apparatus 1 of the present invention, the return electrode 9 is not essential. That is, when using the skin tissue improvement device 1 of the present invention, the electrode 7
As a result, a high-frequency electric field is formed, so that the subject S can form a so-called stray capacitance and be considered to be grounded (see FIG. 3). For this reason, for example, when helium is used as a source gas for plasma, high-frequency high-voltage (preferably 200 kHz or more)
Is applied to the electrode 7, a plasma gas can be generated without providing the counter electrode plate 9.
This state can be observed with the naked eye. Thus, by directing the plasma gas injection nozzle 8 of the skin tissue improvement device 1 of the present invention toward the target skin tissue of the subject S, the plasma-converted gas and the high-frequency current flowing through the floating capacitance are used as the counter electrode. 9 can be used to irradiate the target skin tissue (see FIG. 3).

An embodiment of the skin tissue improving apparatus 1 of the present invention shown in FIGS. 1 and 2 will be described below with reference to the drawings. FIG. 4 schematically shows the appearance of the skin tissue improvement device of the present invention (hereinafter, abbreviated as “this device”) according to the present embodiment.

As shown in FIG. 4, the present apparatus is roughly composed of a table-top apparatus main body 10 and a handpiece-shaped casing (hereinafter simply referred to as a handpiece 12) connected to the apparatus main body 10. It is configured. The handpiece 12 in the present device has the above-described gas supply pipe 5 inside.
(See FIG. 2) Ceramic working portion 46 with formed thereon
And a pencil-shaped synthetic resin gripping portion 42 that accommodates and supports the action portion 46 and can be gripped by an operator. A tapered gas injection nozzle 48 is formed at the tip of the action portion 46. On the other hand, as shown in FIG. 5, the apparatus main body 10 is provided with gas supply means for supplying a raw material gas (typically, an inert gas such as helium or argon) to the handpiece 12 at a constant pressure. In addition to a certain gas flow controller 15, a high-frequency high-voltage power supply unit 16 including a high-frequency amplifier and a step-up transformer, and a control unit 18 for controlling the operation of the present apparatus are provided. The gas flow controller 15 is a control valve for supplying a constant amount of the raw material gas to the handpiece 12. The gas flow regulator 15 includes an external gas supply source (here, a helium gas cylinder and a pressure regulator) via a gas pipe 14a.
The same applies hereinafter) and the joint portion 22
Also, it communicates with a gas delivery pipe 22 described later via a (see FIG. 4). This gas flow controller 15 is provided with the control unit 18.
And the operation thereof can be controlled based on the operation signal from the control unit 18.

As shown in FIG. 4, the handpiece 12 and the apparatus main body 10 of the present apparatus are electrically connected to each other via a cable 21 and a connector 21a covered with an insulator. It is also connected to the apparatus main body 10 by the delivery pipe 22 and the joint part 22a.
Hereinafter, this will be described in detail. The cable 21 is connected to the high-frequency high-voltage power supply unit 16 of the apparatus main body 10. The cable 21 is drawn into the action section 46 of the handpiece 12 to reach the vicinity of the gas injection nozzle 48, and has a needle-shaped thin electrode 7 at the distal end (see FIG. 2). The electrode 7 is exposed in the gas supply pipe 5 while being insulated from the surroundings, and forms a plasma generating portion in the present embodiment. On the other hand, the gas delivery pipe 22 communicates with the gas supply pipe 5 (see FIG. 2) provided in the action section 46 of the handpiece 12, and the gas flow controller 15 and the gas pipe 14a provided in the apparatus main body 10. An inert gas (here, helium gas; the same applies hereinafter) is supplied to the gas supply pipe 5 in the handpiece 12 through the above. Then, the inert gas sent to the gas supply pipe 5 is injected from the gas injection nozzle 48 to the outside. With the above configuration, in the present apparatus, by applying a high-frequency high voltage to the electrode 7 via the cable 21, it is possible to generate plasma based on the high-frequency discharge in an inert gas flow flowing near the electrode 7. Then, the plasma-converted gas can be radiated from the gas injection nozzle 48 to the outside (target skin tissue).

As shown in FIG. 4, a part of the grip portion 42 of the handpiece 12 is provided with a push button type switch 44 and a switch mechanism having a printed circuit board (not shown). Thus, the user of the apparatus operates the switch 44 with a finger during the skin tissue improvement treatment, thereby supplying inert gas from the apparatus main body 10 to the handpiece 12 and power output to the electrode 7. ON / OFF control can be performed.

The control unit 18 is provided with an operation signal input from an action power value setting switch, a gas flow rate control knob, etc. on an operation panel 20 (see FIG. 4) installed on the surface of the apparatus main body 10 or the handpiece 12. The power output value supplied to the handpiece 12 from the high-frequency high-voltage power supply unit 16 and the supply amount of the inert gas are controlled based on a signal received from the switch mechanism provided in the above. The controller 18 typically includes a CPU (processor), a ROM, a RAM, an input processing circuit, an output processing circuit, a gas flow control circuit, and the like. CPU is RO
According to a predetermined control program stored in M, the entire operation of the present apparatus is controlled. The control program includes a program for controlling power output to the handpiece 12 or opening and closing of the gas flow regulator 15. The RAM temporarily stores input / output signals to be processed in the control program. The input processing circuit receives an operation signal sent from the switch mechanism of the handpiece 12 or the operation panel 20, and
The data is converted into a data format that can be processed in the control unit 18 and transferred to the CPU or the RAM via the bus. The output processing circuit sends the handpiece 12 from the high-frequency high-voltage power supply unit 16 in accordance with the output control data sent from the CPU via the bus.
This is a circuit for supplying working power to the electrode 7 provided in the device. The gas flow control circuit is a circuit for controlling the opening and closing of the gas flow regulator 15 in accordance with the gas flow control data sent from the CPU via the bus.

Hereinafter, an operation mode when performing a treatment for improving the condition of the skin tissue using the present apparatus will be described. First, by turning on a main switch (not shown) provided on an operation panel 20 installed on the surface of the apparatus main body 10 of the present apparatus, power is supplied to the apparatus main body 10 from a general single-phase AC power supply. You. Next, the operator holding the handpiece 12 turns on the push-button switch 44 provided on the handpiece 12 so that an operation signal from the control unit 18 is supplied to the gas flow controller provided in the apparatus main body 10. 15 (see FIG. 5). As a result, the gas flow regulator 15 is opened and the inert gas is supplied from the gas supply source 14 to the gas supply pipe 5 in the handpiece 12 via the gas pipe 14a and the gas delivery pipe 22. The inert gas supplied to the gas supply pipe 5 in this manner is then injected from the tapered gas injection nozzle 48 to the outside in the form of a fine beam.

Here, the switch 4 on the handpiece 12
When a predetermined high-frequency high voltage is applied to the electrode 7 by operating the electrode 4, a high-frequency discharge is generated from the electrode 7, and an inert gas flowing around the electrode 7 is turned into plasma. Then, the operator operates the handpiece 12 to bring the tip (that is, the gas injection nozzle 48) close to the target skin tissue of the subject S, and the plasmatized gas injected from the gas injection nozzle 48 is applied to the skin tissue. (See FIG. 3). In addition,
The plasma level of the gas irradiated to the skin tissue can be controlled by adjusting the voltage output level and frequency applied to the electrode, or the flow rate of the supplied inert gas. For example, when using helium gas,
Normally, a high frequency voltage of 200 kHz, preferably higher than that is applied. Next, when the operator has completed the skin tissue improvement treatment in accordance with the above-described operation procedure, the above-described operation is performed based on a signal from the control unit 18 transmitted by turning off the push-button switch 44 on the handpiece 12. The supply of the working power to the electrode 7 is stopped. At the same time, the gas flow controller 15 stops, and the supply of the inert gas to the handpiece 12 ends. Then, by finally turning off the main switch on the operation panel 20, the power supply to the apparatus main body 10 also ends.

Based on the above operation, the present apparatus can be used for improving various forms of skin tissue condition. For example, in the case of infectious skin diseases such as athlete's foot, bugs,
A predetermined time (for example, 10 minutes to
By continuously irradiating the plasma-forming gas for 60 minutes) and a number of times (preferably a plurality of times per day), the action of the excited particles contained in the plasma-forming gas or the heating action caused by the high-frequency current causes the surrounding area of the affected part to be heated. It activates the metabolism of skin tissue, increases the resistance to pathogens (such as fungi), and can kill the pathogens themselves by the action of plasma gas. At this time, in the present apparatus, oxygen in the air can be ozonized by the influence of the high-frequency electric field around the electrodes, and therefore, a sterilizing effect due to the synergistic effect of the plasma gas and the generated ozone can be expected.
In addition, when a combination treatment such as a conventional ointment is used,
The efficacy of the therapeutic agent can be enhanced by a synergistic effect with plasma gas irradiation. As described above, one aspect of the present apparatus is a skin disease treatment apparatus using plasma.

In the case of pathological or senile alopecia, the target site (typically the scalp) using the present device is used.
By continuously irradiating the plasma-forming gas for a predetermined time (for example, 5 to 30 minutes) and the number of times (preferably a plurality of times per day), the action of the excited particles contained in the plasma-forming gas or the high-frequency current The function of the hair follicle tissue of the target skin tissue can be recovered and / or activated by the warming action caused by the above. In addition, when a conventional hair restorer is used in combination, the effect of the hair restorer can be enhanced by a synergistic effect with plasma gas irradiation. As described above, another aspect of the present device is a hair growth device using plasma.

Furthermore, removal of substances deposited on skin tissue such as pathological or senile spots, freckles, bruises,
When hair removal processing for useless body hair or improvement of wrinkles is desired, a predetermined time (for example, 5 minutes to 60 minutes) is applied to a target skin tissue (typically the face) using the present apparatus, depending on the processing target. And frequency (preferably multiple times per day),
By continuously irradiating the plasma gas, the metabolism of the target skin tissue is activated or eradicated by the action of the excited particles contained in the plasma gas or the heating action caused by the high-frequency current, and the beauty generated in the skin tissue Can improve the above troubles. Therefore, another aspect of the present apparatus is a cosmetic surgery apparatus using plasma.

In this apparatus, the gas supply pipe 5 provided with the electrode 7 is housed in a casing in the shape of a handpiece 12, and the plasma gas is injected from the tapered gas injection nozzle 48. It is not limited to this embodiment. For example, as shown in FIG. 6, a plate-shaped electrode 56 is provided on a casing 52 having a relatively large opening 52a having a shape that can be in close contact with the surface of the target skin tissue T.
The type having the inside is suitable as the second skin tissue improving device of the present invention. Hereinafter, the skin tissue improving device 50 of the present shape will be described in detail with reference to FIG.

As shown in FIG. 6, a skin tissue improving device 50 of the present shape is roughly composed of a casing 52 made of an insulator and having the above-described opening 52a, and a casing 52 inside the casing 52, And a plate-shaped electrode 56 provided near the opening 52a. The inside of the casing 52 forms a gas supply pipe 54 connected to the external gas supply source 4. The gas supply pipe 54 has a gas flow rate serving as a gas supply means in the skin tissue improvement device 50 having the present shape. A desired flow rate of the inert gas is supplied by a regulator (not shown). On the other hand, the plate-shaped electrode 56 is connected to the external high-frequency high-voltage power supply 6 and is arranged so as to be exposed in the gas supply pipe 54 near the opening 52a. Accordingly, when a high-frequency voltage is applied to the plate-like electrode 56, plasma P is generated in the inert gas flow in the plasma generating portion (that is, around the plate-like electrode 56), and the generated plasma gas is It is emitted to the outside through the opening 52a.

At this time, by bringing the opening 52a close to or in contact with the target skin tissue T (preferably in a substantially close contact state), the opening 52a can be almost closed. As a result, the discharge path of the plasma gas generated in the opening 52a is substantially blocked, and as a result, the inside of the opening 52a of the casing 52 (specifically, between the opening 52a and the plate electrode 56; FIG. 6) ), A plasma gas atmosphere can be formed. That is, in the skin tissue improvement device 50 of the present shape, the high concentration of the plasma gas in the formed plasma gas atmosphere can be directly irradiated to the skin tissue T closing the opening 52a without decreasing. Therefore, according to the skin tissue improvement device 50 of the present shape, the plasma gas containing the excited particles can be temporarily supplied to the target skin tissue T at a high concentration, so that the metabolism of the skin tissue T is further activated. It is possible.

Although the preferred embodiments of the skin tissue improving device of the present invention and the second skin tissue improving device of the present invention have been described with reference to the drawings, it is intended that the present invention be limited to these embodiments. It was not done. For example, helium or argon is preferable as the source gas used for the treatment for improving the condition of skin tissue.
₂ or O ₂ or a mixed gas thereof can be applied to the present invention. Further, the plasma generating means in the skin tissue improving apparatus of the present invention is preferably based on high-frequency discharge, but is not limited thereto. For example, a means based on DC glow discharge may be used. Further, the materials and shapes of the electrodes and the casing in the skin tissue improvement device of the present invention may be changed according to the content of the skin tissue improvement treatment to which the present invention is applied, and are limited to the shape of the device according to the above embodiment. is not.

[0028]

According to the present invention, it is possible to promote the improvement of the condition of various forms of skin tissue by activating the skin tissue based on the plasma energy. That is, according to the skin tissue improvement apparatus of the present invention, the skin tissue can be physiologically activated by continuously irradiating the target skin tissue with the gasified plasma. Therefore, according to the skin tissue improvement device of the present invention, it is possible to improve the condition of the skin tissue. The skin tissue improving device of the present invention typically improves the symptoms of infectious skin diseases such as athlete's foot, syphilis, prevents alopecia and promotes hair growth, and removes spots, freckles, bruises, and wasteful body hair. Skin care belonging to the field of cosmetic surgery including hair removal treatment.

[Brief description of the drawings]

FIG. 1 is a system schematic diagram of a skin tissue improvement device of the present invention according to one embodiment.

FIG. 2 is a schematic view showing an outline of a skin tissue improvement device of the present invention according to one embodiment.

FIG. 3 is a diagram illustrating a use state of the skin tissue improvement device of the present invention according to one embodiment.

FIG. 4 is a schematic perspective view showing the overall configuration of the skin tissue improvement device of the present invention according to one embodiment.

FIG. 5 is a block diagram schematically showing an internal configuration of a skin tissue improvement device main body of the present invention according to one embodiment.

FIG. 6 is a schematic view showing an outline of a skin tissue improving device of the present invention according to one embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 50 Skin tissue improvement apparatus 2, 52 Casing 3 Plasma generation part 4, 14 Gas supply source 6 High-frequency high-voltage power supply 7, 56 Electrode 8 Plasma gas injection nozzle 10 Main body 12 Handpiece 15 Gas flow controller 16 High-frequency high-voltage power supply Unit 18 control unit 42 gripping unit 46 acting unit 48 gas injection nozzle 52a opening S subject to be treated T skin tissue

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masayoshi Uchida 28, Kitaimaji, Seta, Onishi-shi, Aichi Pref. Inside

Claims (2)

[Claims] A plasma generating section for generating a plasma in a gas flow; and gas supply means for supplying a gas to the plasma generating section, wherein the gas supplied to the plasma generating section is converted into a plasma. A skin tissue improving device characterized by improving the condition of the skin tissue by irradiating the skin tissue with the gas converted into plasma. 2. The skin tissue improvement device according to claim 1, further comprising a casing having an opening that can be in close contact with the surface of the skin tissue, wherein the plasma generating unit is provided inside the casing and the opening is provided. It is provided in the vicinity, wherein by bringing the opening portion close to or in contact with the skin tissue, the plasma gas generated in the plasma generating portion is directly irradiated to the skin tissue from the opening portion. Skin tissue improvement device.