WO2018016819A1

WO2018016819A1 - Rf energy transmitter and rf energy transmission method

Info

Publication number: WO2018016819A1
Application number: PCT/KR2017/007646
Authority: WO
Inventors: 고광천
Original assignee: 주식회사 루트로닉
Priority date: 2016-07-22
Filing date: 2017-07-17
Publication date: 2018-01-25
Also published as: KR20180010825A

Abstract

The present invention relates to an RF energy transmitter and an RF energy transmission method, the RF energy transmitter comprising: an RF generator for generating RF energy; an applicator for transmitting the RF energy to an object volume in the body; and a control unit for variously controlling the size of the RF energy transmitted to respective temperature increasing section such that the plurality of temperature increasing sections can be distinguished and reach a therapeutic temperature when the RF energy is transmitted to the object volume. The RF transmitter and the RF energy transmission method, according to the present invention, enable reduction in the total time spent while maintaining treatment effects on adipocytes.

Description

RF energy transfer device and RF energy transfer method

The present invention relates to an RF energy delivery device and an RF energy delivery method, and more particularly, to an RF energy delivery device and an RF energy delivery method for delivering heat by heating RF energy and treating cells.

Recently, adult diseases such as diabetes, hypertension and vascular disorders have emerged as serious social problems in modern society. One of the causes of the adult disease is known as obesity, and the method of consuming fat through the metabolism of the body through the suppression of exercise and calorie intake to improve obesity is generally known.

Subcutaneous fat is formed by the accumulation of fat cells distributed in the subcutaneous layer, and subcutaneous fat has a much larger volume than normal cells when mature, and contains 95% of fat. These adipocytes contain less water than other cells and can be heated to higher temperatures than other cells when RF energy is delivered.

On the other hand, the conventional method of treating the fat cells by delivering the above-mentioned RF energy takes a lot of time to heat the fat cells there was an inefficient problem.

The present invention is to solve the problem that takes a long time when heating the cell by transmitting the conventional RF energy, to provide an RF energy delivery device and RF energy delivery method for preventing skin damage caused during excessive RF transmission. have.

RF generator configured to generate RF energy, an applicator including an electrode configured to deliver RF energy to an object located in the body, and a plurality of temperature rise sections when RF energy is delivered to the object to reach a treatment temperature An RF energy transmission device including a control unit for differently controlling the magnitude of the RF energy transmitted for each temperature rise section is provided.

In this case, the plurality of temperature rise sections include a first temperature rise section for rapidly increasing the temperature of the object to a reference temperature adjacent to the treatment temperature and a second temperature rise section for increasing the temperature of the object from the reference temperature to the treatment temperature. Can be configured.

In addition, the first RF energy delivered during the first temperature rise section may be greater than the second RF energy delivered during the second temperature rise section to rapidly increase the temperature of the object.

The plurality of temperature rising sections may further include a temperature holding section in which the subject maintains the treatment temperature for a predetermined time after the second temperature rising section, and the first and second temperature rising sections are transferred to the temperature holding section. Third RF energy smaller than the second RF energy may be delivered.

Furthermore, the first temperature rise section may last longer than the second temperature rise section so that the subject can quickly reach the treatment temperature.

The duration of the second temperature rise section may be 50% to 100% of the first temperature rise section, and the duration of the temperature maintenance section may be 50% to 200% of the first temperature rise section.

On the other hand, the applicator further includes a temperature sensor configured to measure the surface temperature of the skin and a cooling unit configured to cool the surface of the skin, and the control unit drives the cooling unit when the surface temperature becomes higher than the required cooling temperature. Can be controlled.

At this time, the cooling required temperature may be 48 ℃ to 50 ℃ to prevent damage to the skin in the temperature rise section.

The cooling unit may be configured to be air cooled to prevent the surface temperature from being rapidly cooled.

In addition, the controller may be driven for a time within 5 minutes in one drive so that the temperature of the target object does not fall when the cooling unit is driven.

Meanwhile, the controller may control the size of the first RF energy to be 3 to 5 times the size of the third RF energy so that the subject can quickly reach the reference temperature in the first temperature rise section.

In this case, the first RF energy may be 300W to 500W, the second RF energy may be 100W to 300W, and the third RF energy may be 50W to 150W.

The first temperature rise section may last 5 minutes to 15 minutes, the second temperature rise section may last 5 minutes to 10 minutes, and the temperature maintenance section may last 5 minutes to 15 minutes.

Herein, the subject includes adipose cells, the treatment temperature is a temperature at which the fat cells are denatured, and a temperature at which the fat cells are denatured may be 44 ° C. to 46 ° C.

And the reference temperature may be 40 ℃ to 44 ℃.

On the other hand, the controller may control the first RF energy and the second RF energy so that the object can be heated to the largest temperature rise rate during the first temperature rise period.

In addition, the first RF energy transfer step of heating the object by transmitting the first RF output during the first temperature rise section, during the second temperature rise section so that the temperature rise can be achieved at a temperature rise rate lower than the first temperature rise section. A second RF energy transfer step of delivering a second RF output smaller than the first RF output, and a third RF energy delivering a third RF output smaller than the second RF output so that the object can be maintained at a treatment temperature at which the object is treated It may be configured to include a delivery step.

Here, when the subject reaches the reference temperature adjacent to the treatment temperature, the first RF energy transfer step is terminated and the second RF energy transfer step is performed, and when the subject reaches the treatment temperature, the second RF energy transfer step is performed. Terminating and the third RF energy transfer step is performed, the reference temperature may be lower than the treatment temperature.

At this time, during the first RF energy transfer step and the second RF transfer step, a cooling step of cooling the skin may be performed when the surface temperature of the skin adjacent to the object corresponds to the required cooling temperature.

The duration of the second temperature rise section may be 50% to 100% of the first temperature rise section, and the duration of the temperature maintenance section may be 80% to 200% of the first temperature rise section.

The RF energy delivery device and the RF energy delivery method according to the present invention can be heated to a treatment temperature quickly, so that the overall time required can be shortened, and excessive energy can be prevented, thereby increasing stability.

1 is a perspective view of an adipocyte treatment apparatus according to the present invention.

2 is a conceptual diagram of a fat cell treatment apparatus.

3 is a state diagram used in the treatment of fat cells.

4 is a temperature graph of an object during RF output transmission.

5 is a graph of RF output.

6 is a state diagram used during cooling.

Figure 7 is a flow chart of the RF energy delivery method for adipocyte treatment.

This embodiment will be described with reference to a device for reducing body fat by delivering RF energy, but this is an example and the present invention is not limited thereto. In addition, it is noted that the RF energy can be applied to various devices for carrying out treatment by delivering RF energy to the treatment site. In addition, the term 'treatment' refers to treatment by changing the lesion site including degeneration and removal of tissues such as COAGULATION and ABULATION of cells for tissue regeneration.

Hereinafter will be described with reference to FIGS. 1 to 6 with respect to the adipocyte treatment apparatus of an embodiment of the present invention.

1 is a perspective view of an adipocyte treatment apparatus according to the present invention. As shown, the adipocyte treatment apparatus according to the present invention comprises an applicator 300, a link 200, the body portion 100.

Body portion 100 is provided with a user interface for configuration and control for generating RF energy, is configured to generate RF energy in connection with an external power source. It also includes components that perform overall control of the device, including control of size and time of RF energy.

The applicator 300 is disposed adjacent to the body and is configured to deliver RF energy into the body. The applicator 300 may include an applicator body 310, an antenna 320, a temperature sensor 330, a cooling unit 340, and a guide unit 350.

The link 200 is configured to mechanically connect the body part 100 and the applicator 300 to fix the applicator 300. The link 200 may be configured to include a plurality of joints so that the applicator 300 may be disposed at various positions.

Hereinafter, each component will be described in detail with reference to FIGS. 2 and 3.

2 is a conceptual diagram of a fat cell treatment apparatus.

As shown, the body portion 100 is configured to include a power supply 110, an RF circuit, a user interface (not shown), a data storage unit 170 and the control unit 140, the applicator 300 is It is configured to include an antenna 320, a temperature sensor 330, a cooling fan (not shown) and the guide unit 350.

The power supply unit 110 is connected to an external power source and is connected to other electrical components including the RF circuit, the interface unit 160, and the controller 140.

The RF circuit is configured to modulate the energy delivered from the power supply 110 into RF and deliver it to the applicator 300. The RF circuit may include an RF generator 120, a balloon circuit 130, and primary and secondary transformers (not shown). Although not shown, the RF circuit may include ancillary components for performing modulation, balance, matching, and the like.

The RF generator 120 is configured to modulate the delivered energy into Radio Frequancy (RF). The RF generator 430 according to the present embodiment is configured to generate RF energy having a frequency of 27.12 MHz. In addition, the RF generator 430 corresponds to a frequency of an ISM band such as 13.553 to 13.567 MHz, 26.975 to 27.283 MHz, and 40.66 to 40.70 MHz. Can be configured to generate RF energy. The balun circuit 130 may modulate an unbalanced impedance into a balanced impedance when transmitting RF energy. The primary and secondary transformers perform impedance matching. On the other hand, since the configuration of such an electrical component is generally used configuration, detailed description of the detailed configuration will be omitted.

The interface unit 160 is configured to notify a user of an operation input, a current state, and the like. The interface unit 160 may include an image output unit (not shown) and an audio output unit (not shown). The image output unit and the audio output unit may be provided on an outer surface of the body unit 100.

The data storage unit 170 may store various information necessary for operating the device, and may store information about protocols and algorithms for controlling RF energy in response to a current state of the patient's body impedance.

The controller 140 is configured to perform control of components including input, output, and RF circuits. The controller 140 may be connected to each electrical component to perform signal processing, and control may be performed according to an algorithm stored in the data storage unit 170. In addition, the temperature sensor 330 and the cooling fan provided in the applicator 300 is configured to adjust the output of the cooling fan according to the sensing value. Meanwhile, the RF energy control of the controller 140 will be described in detail later.

The applicator 300 is configured to be disposed adjacent to the patient as described above to apply RF energy to the human body. The applicator 300 includes an applicator body 310, an antenna 320, a temperature sensor 330, a cooling fan (not shown), and a guide unit 350.

The applicator body 310 may be configured in a size corresponding to the average width of the abdomen to apply RF energy to a large area of the patient's body. The applicator body 310 may be provided with an antenna 320, a temperature sensor 330, and a cooling unit 340 therein. The applicator body 310 may be disposed at an appropriate distance from the skin (S) so that the RF energy can be efficiently transmitted to the subcutaneous fat layer during operation. At this time, the cooling unit 340 may be configured to include a tube to receive the air from the body portion 100, the cooling wind provides a cold strong wind to the skin through a plurality of holes formed in the applicator body 310 can do. However, the configuration of the cooling unit described above is just an example, and may be configured as a fan (not shown) provided in the applicator body 310.

The guide unit 350 is configured not to be separated from the portion where the applicator body 310 is disposed when the device is operated, and is connected to the applicator body 310 to guide the applicator 300 according to the body curvature of the patient. It can be configured to be rotatable.

3 is a state diagram used in the treatment of fat cells.

As shown, treatment proceeds in a manner that delivers RF energy to the patient's subject Vt with two antennas 320 spaced apart at the treatment location. Treatment is aimed at reducing the subcutaneous fat of the subject (Vt). By maintaining the subcutaneous fat (hatched area) at a temperature of 45 degrees Celsius or more for a predetermined time it is possible to kill fat cells. Therefore, the control unit 140 transmits the RF energy to the treatment position through the antenna 230 The plurality of components are controlled to increase the temperature of the subcutaneous fat to the treatment temperature and to be maintained for a predetermined time. The treatment temperature can be 45 degrees to 50 degrees Celsius. Meanwhile, although a pair of electrodes has been described as an example, one pair of inductive electrodes and a plurality of capacitive electrodes may be configured to deliver RF energy.

4 is a graph of a temperature (Tfat) of the target object (Vt) during RF energy transfer, FIG. 5 is a graph of RF energy, and FIG. 6 is a diagram showing a state of use during cooling.

As shown in FIG. 4, the temperature of each part of the body tissue including subcutaneous fat is increased during RF energy delivery. Specifically, the temperature Tfat of the target object Vt and the surface temperature Tskin of the skin S adjacent thereto are shown with time.

The transfer of RF energy may be divided into an energy transfer step into a first temperature rise section P1, a second temperature rise section P2, and a temperature maintenance section P3 according to the magnitude of energy delivered by the controller 140. In addition, the cooling step (Pc) may be performed by dividing.

The first temperature rise section P1 is a step of delivering the largest first RF energy to rapidly reach the target temperature T1 in which the fat cells are distributed, to the reference temperature T1. In general, the fat layer is less heat transfer by the blood or surface than the skin or muscle, so absorbed energy is not easily released. Therefore, the larger the transmitted RF energy, the faster the temperature Tfat of the target object Vt rises. Therefore, the first temperature rise rate is shown in the first temperature rise section (P1) by transferring the RF energy with the largest power, the object temperature (Vt) is the fastest temperature of the entire section.

Regarding the rate of temperature rise, the rate of temperature rise of fat layer, skin (S) and muscle is different when delivering RF energy within a certain size. The temperature of the fat layer is less heat than other tissues, but in the case of muscles, it has a cooling effect by blood, and the skin (S) has a lower temperature than fat volume due to heat loss cooling by air on the surface. (Tskin ')

However, when RF energy is delivered above a certain output, the heat absorbed from the skin layer is greater than the heat loss at the surface. In this case, the temperature reversal occurs when the surface temperature is higher than the fat layer. In the first temperature rise section P1, the first RF energy RF1 large enough to cause such a temperature reversal may be transferred to heat the object Vt. At this time, the surface temperature (Tskin) of the skin (S) can be raised rapidly, even if the natural cooling by the air on the surface is constantly rising the temperature. On the other hand, since the surface temperature (Tskin) of the skin (S) can rise to a high temperature so that the skin cells are denatured, the cooling step (Pc) may be performed to prevent this. This will be described later.

The first RF energy RF1 transmitted from the first temperature rise section P1 may be transmitted at a power of 300 W to 500 W, and in this case, to prevent the temperature Tfat of the object Vt from excessively rising. In order to be carried out within 5 to 15 minutes. The first temperature increase section P1 is terminated when the temperature Tfat of the target object Vt corresponds to the reference temperature T1 and is of a different size so as to enter the second temperature rise section P2 which is the next step. RF energy can be delivered.

The second temperature rise section P2 corresponds to a step for stabilizing the heat distribution of the target object Vt. In the case where the tissue in the object area Vt is rapidly increased in temperature in the first temperature rise section P1, a region in which a temperature deviation occurs partially appears from the microscopic view. The second temperature rise section P2 ) Transmits the second RF energy RF2 smaller than the first RF energy RF1 so that the region where the temperature deviation occurs has a uniform temperature distribution as a whole by heat exchange with the surroundings. In this case, the size of the second RF energy RF2 is determined as a size at which the temperature may rise at a second temperature rise rate at which the temperature Tfat of the target object Vt is smaller than the first temperature rise rate.

When the size of the second RF energy (RF2) is 200W it can be obtained through the experiment to have a uniform temperature distribution within 5 minutes and to rise to the fat cell treatment temperature (T2). Therefore, the second temperature rise section P2 is the second RF energy (RF2) is delivered at a power of 100W to 300W, the duration may be made of about 5 to 10 minutes. On the other hand, the energy is transferred to the skin (S) during the second RF energy (RF2) transfer, so that the temperature can rise, even in this case, if the surface temperature (Tskin) of the skin rises to the required cooling temperature (T3) cooling step The controller functions to perform (Pc).

Hereinafter, the cooling step Pc will be described in detail.

As shown in FIG. 6, in the cooling step Pc, the temperature of the skin S is excessively increased during the execution of the first temperature rise section P1 or the second temperature rise section P2, thereby destroying cells. Cool the skin (S) surface to prevent. On the other hand, the skin (S) cells degeneration near 50 degrees, the cells are destroyed, so even if the temperature rises should be maintained at a temperature of 50 degrees or less. Therefore, if the surface temperature (Tskin) of the skin (S) corresponds to 48 degrees by performing a margin, the cooling step (Pc) is performed. The cooling step Pc uses a cooling unit (not shown) provided in the applicator 300 so as to quickly respond to the temperature of the skin S, and the control unit maintains the measured surface temperature Tskin of 48 degrees. The output of the cooling unit can be controlled in response to the temperature. On the other hand, such a cooling unit may be applied to the air-cooled or water-cooled, in the case of the air-cooled may be composed of a fan RPM control.

The end of the cooling step Pc may be configured to end when the surface temperature Tskin falls below 48 degrees or when the cooling time elapses for 5 minutes. This is to prevent the temperature Tfat of the object Vt from being lowered due to excessive heat loss from the skin S surface.

Temperature maintenance section (P3) corresponds to the step of maintaining the thermal equilibrium and to be able to treat the fat cells of the subject (Vt). In this case, the surface temperature Tskin of the skin S does not exceed 50 ° C., and the temperature Tfat of the target object Vt can be maintained at the fat cell treatment temperature T2. Can be delivered. The temperature maintenance section P3 may be maintained for 10 minutes while maintaining the adipocyte treatment temperature T2 so that the adipocytes distributed in the subject Vt can be treated evenly.

On the other hand, adipocyte treatment temperature (T2) is generally known to be curable if kept at 45 degrees for 10 minutes or more. On the other hand, the method of directly measuring the temperature of the fat layer during the delivery of RF energy is inappropriate, so the size and delivery time of the RF energy can be determined through experimental data.

For example, when the first RF energy is delivered at a power of 300W in the first temperature rise section P1, when the cooling step Pc simultaneously maintains the skin surface temperature Tskin below 48 ° C, The temperature Tfat was close to 43 degrees from the experimental results. In this case, 43 ° C. may be set as a reference temperature T1 for terminating the first temperature rise section Pc and entering the second temperature rise section Pc.

Even if the second RF energy is delivered at a power of 200 W in the second temperature rise section, the cooling step Pc may be performed, and when maintained for 5 minutes, the temperature Tfat of the target object Vt is the fat cell treatment temperature. Reaching (T3) was found from the experimental results.

If the third RF energy RF3 is too large in the temperature maintenance section P3, the object Vt rises above the adipocyte treatment temperature T2. On the other hand, excessive overheating may cause damage to tissues more than necessary, so it is desirable to maintain the fat cell treatment temperature (T2). On the contrary, if the third RF energy RF3 is too small, it is lowered below the fat cell treatment temperature T1, so that proper treatment is not performed. At this time, when the third RF energy RF3 was continuously transmitted at a power of 100 W for 10 minutes, the temperature Tfat of the target object Vt was maintained at 45 ° C., and the surface temperature Tskin of the skin S was at the surface. It could be obtained from the experimental results that the natural cooling falls below 45 ° C.

The power and transmission time of each of the aforementioned RF energy RF1, RF2, and RF3 are merely examples and may be set with appropriate margins in consideration of individual deviations.

However, the magnitude of each RF energy and the execution time of each step described above are examples, and may be set differently according to the treatment area and according to the patient. In addition, the first RF energy RF1 may be configured to be delivered to three times or more than the third RF energy RF3 for rapid heating.

In addition, the durations of the first temperature rise section P1, the second temperature rise section P2, and the temperature maintenance section P3 may be determined and continued at predetermined ratios. Compared with the first temperature rise section P1, the duration of the second temperature rise section P2 is 50% to 100% of the first temperature rise section P1, and the duration of the temperature maintenance section P3. The duration may be 50% to 200% of the first temperature rise section P1. Therefore, the first temperature rise section P1 may last longer than the second temperature rise section P2 to rapidly increase the temperature of the object Vt. On the other hand, if the total treatment time is set to 25 minutes or less, the duration may be determined according to the above-described duration ratio.

Hereinafter will be described an RF energy delivery method for adipocyte treatment according to another embodiment of the present invention.

As shown, RF energy delivery method for the treatment of fat cells, the first RF energy delivery step (S100), the second RF energy delivery step (S200) and the third RF energy delivery step (S300), surface temperature (Tskin) It may be configured to include a measuring step and a cooling step (S400).

The first RF energy delivery step S100 is a step of delivering the largest first RF energy of each step so as to quickly increase the temperature Tfat of the target object Vt in which the fat cells are distributed. The first RF energy transfer step S100 may increase the object Vt to the reference temperature T1 by continuing for a predetermined temperature or a predetermined time. The reference temperature T1 may be set to a temperature slightly lower than 45 ° C., which is the fat cell treatment temperature T2, and may be set to 40 ° C. to 44 ° C. This is to prevent the destruction of other tissues when the temperature of the skin surface is excessively raised or maintained at a high temperature.

Since it is not preferable to measure the temperature of the fat layer during the transfer of RF energy, the reference temperature (T1) is the target temperature (Vt) according to the surface temperature (Tskin), the running time, the size of the RF output, etc. previously obtained by the test. It can be estimated from a lookup table containing temperature (Tfat) data.

The surface temperature (Tskin) measurement step may continuously measure the temperature of the surface of the skin (S) while RF energy is transmitted, independently of the estimation of the temperature (Tfat) of the target object (Vt). Meanwhile, in the first RF energy transfer step S100 having a high temperature increase rate, the measurement may be made more frequently than in the other steps S200 and S300.

The second RF energy transfer step S200 is a second smaller than the first RF energy transfer step S100 so as to heat the object Vt at a lower temperature rise rate than when the first RF energy transfer step S100 is performed. Delivers RF output The second RF energy transfer step S200 may be performed for a predetermined time by transmitting an RF output of 200 W, and a partial non-uniform temperature distribution may be uniformly distributed within the object Vt in the first RF energy transfer step S200. The target object Vt is gradually heated so as to be heated. At this time, the RF energy absorbed from the skin (S) layer is smaller than the amount of heat loss in the skin (S), the surface temperature (Tskin) is lowered and gradually reaches the stabilization stage. The surface temperature Tskin measurement step is also performed in the second RF energy transfer step S200. If the surface temperature Tskin of the skin S reaches 42 degrees, the next step is performed.

The cooling step S400 is performed to cool the skin S surface to prevent damage to the skin S when the surface temperature Tskin of the skin S becomes higher than the required cooling temperature T3. The skin (S) is performed to maintain the lower 48 degrees because the destruction of the cell occurs from about 50 degrees. As a result of the experiment, the temperature difference between the fat layer and the skin (S) is at least 3 degrees, so that even if the skin (S) is cooled, the fat layer is prevented from dropping below 45 degrees, the fat cell treatment temperature (T2). In addition, for this purpose, the cooling step S400 may be configured to be performed only up to 5 minutes. And the cooling step (S400) stops cooling when the cooling required temperature (T3) or less.

Meanwhile, the cooling step S400 may be configured by air cooling to finely adjust the surface temperature Tskin.

The third RF energy transfer step S300 may maintain the temperature by transferring RF energy corresponding to heat absorption and heat loss of the target object Vt so that the temperature Tfat of the target object Vt is kept constant. To be performed. At this time, the RF output of 100W is transmitted, the skin temperature (S) surface temperature (Tskin) can be maintained at about 42 degrees, the target object (Vt) can be maintained at 45 ℃, and lasts about 10 minutes to be widely distributed within the subject (Vt) Many fat cells can be treated. On the other hand, the fat cell surface temperature (T2) has been described with an example of 45 ℃, this is only one example can exhibit an approximate effect even in the range of 44 ℃ to 46 ℃.

The RF energy delivery device for adipocyte therapy and the RF energy delivery method for adipocyte therapy described above are composed of two or more stages of temperature rise so that the temperature can be increased at different temperatures. May be raised, and cooling is performed to prevent damage to the skin (S). Therefore, there is an effect that can shorten the overall time while maintaining the therapeutic effect of fat cells.

Claims

An RF generator configured to generate RF energy;

An applicator comprising an electrode configured to deliver the RF energy to an object located within the body; And

RF energy delivery device comprising a control unit for controlling the size of the RF energy delivered to each temperature rise section to reach the treatment temperature is divided into a plurality of temperature rise section when the RF energy to the target object.
According to claim 1,

The plurality of temperature rise sections may include a first temperature rise section for rapidly increasing the temperature of the object to a reference temperature adjacent to the treatment temperature; And

And a second temperature rise section for raising the temperature of the object from the reference temperature to the treatment temperature.
The method of claim 2,

The first RF energy delivered during the first temperature rise section is greater than the second RF energy delivered during the second temperature rise section to quickly increase the temperature of the object.
The method of claim 3, wherein

The plurality of temperature rise section,

After the second temperature rise section further comprises a temperature maintenance section in which the subject is maintained at the treatment temperature for a predetermined time,

And a third RF energy which is smaller than the first and second RF energy delivered to the first and second temperature rise sections in the temperature maintenance section.
The method of claim 4, wherein

And the first temperature rise section lasts longer than the second temperature rise section so that the subject can quickly reach the treatment temperature.
The method of claim 5,

The duration of the second temperature rise section is 50% to 100% of the first temperature rise section,

RF energy transmission device, characterized in that the duration of the temperature maintenance section is 50% to 200% of the first temperature rise section.
The method of claim 4, wherein

The applicator,

A temperature sensor configured to measure the surface temperature of the skin; And

Further comprising a cooling unit configured to cool the surface of the skin,

And the control unit controls to drive the cooling unit when the surface temperature becomes higher than the required cooling temperature.
The method of claim 7, wherein

The cooling required temperature is RF energy delivery device, characterized in that 48 ℃ to 50 ℃ to prevent damage to the skin in the temperature rise section.
The method of claim 7, wherein

The cooling unit,

RF energy delivery device, characterized in that configured to be air-cooled to prevent the surface temperature is rapidly cooled.
The method of claim 9,

The control unit,

RF energy transmission device characterized in that for driving for a time within 5 minutes when driving once so that the temperature of the object is not lowered during the driving of the cooling unit.
The method of claim 4, wherein

The control unit,

The magnitude of the first RF energy is controlled to be three to five times the magnitude of the third RF energy so that the subject can quickly reach the reference temperature in the first temperature rise section. Delivery device.
The method of claim 4, wherein

The first RF energy is 300W to 500W,

The second RF energy is 100W to 300W, and

The third RF energy RF energy delivery device, characterized in that 50W to 150W.
The method of claim 4, wherein

The first temperature rise section is 5 minutes to 15 minutes,

The second temperature rise section is 5 minutes to 10 minutes, and

The temperature maintenance section is an RF energy delivery device, characterized in that lasting 5 to 15 minutes.
The method of claim 4, wherein

The subject includes fat cells,

The treatment temperature is the temperature at which the fat cells are denatured,

The temperature at which the fat cells are denatured is an RF energy delivery device, characterized in that 44 ℃ to 46 ℃.
The method of claim 14,

The reference temperature is an RF energy delivery device, characterized in that 40 ℃ to 44 ℃.
The method of claim 4, wherein

The control unit,

And controlling the first RF energy and the second RF energy so that the object can be heated to the largest temperature rise rate during the first temperature rise period.
A first RF energy transfer step of heating the object by transmitting a first RF output during the first temperature rise section;

A second RF energy transfer step of transferring a second RF output smaller than the first RF output during the second temperature rise section so that the temperature rise can be performed at a temperature rise rate lower than the first temperature rise section;

And a third RF energy delivery step of delivering a third RF output smaller than the second RF output so that the subject can be maintained at a treatment temperature which is the temperature at which the object is being treated.
The method of claim 17,

When the subject reaches a reference temperature adjacent to the treatment temperature, the first RF energy delivery step is terminated and the second RF energy delivery step is performed,

When the subject reaches the treatment temperature, the second RF energy delivery step is terminated and a third RF energy delivery step is performed,

The reference temperature is RF energy delivery method, characterized in that lower than the treatment temperature.
The method of claim 18,

During the first RF energy transfer step and the second RF transfer step,

And a cooling step of cooling the skin is performed when the surface temperature of the skin adjacent to the object corresponds to the required cooling temperature.
The method of claim 17,

The duration of the second temperature rise section is 50% to 100% of the first temperature rise section,

The duration of the temperature maintenance section is RF energy transfer method, characterized in that 80% to 200% of the first temperature rise section.