Treatment device using RF energy and control method thereof

Abstract

The present invention relates to a treatment device using RF energy and a control method thereof, and provides a treatment device using RF energy and a control method thereof, the treatment device comprising: an RF generation unit; an electrode unit that comes into contact with the skin of a patient and applies, to tissue, a plurality of RF pulses generated from the RF generation unit; a temperature measurement unit for measuring temperature information of the tissue, to which the RF pulses are being applied, while the RF pulses are being applied; and a control unit for controlling parameters of the RF pulses on the basis of the temperature information measured by the temperature measurement unit.

Description

Treatment device using RF energy and control method thereof

[0001] The present invention relates to a treatment device using RF energy and a control method thereof, and more particularly, to a treatment device using RF energy that treats tissue by applying RF pulses to the tissue and a control method thereof.

[0002] Techniques for treating tissue lesions by delivering RF energy to a patient's skin have been developed in various ways. In particular, recent technologies have been developed that treat tissue without damaging the skin surface by cooling the skin with electrodes placed on the skin surface and delivering RF energy. These RF energy-based treatment techniques are disclosed in Korean Patent No. 0706115, among others.

[0003] Treatment using this type of RF energy involves delivering the required amount of RF energy to the tissue. However, even when applying RF energy at the same output, the way energy is delivered to the tissue varies due to various variables, such as tissue characteristics, making it difficult to achieve uniform treatment.

[0004] The present invention provides a treatment device using RF energy and a control method thereof that can have a uniform treatment effect even when the characteristics of the tissue or other environmental conditions are different when treating the tissue using RF energy.

[0005] In order to achieve the above-described object of the present invention, the present invention provides a treatment device using RF, including an RF generator, an electrode unit that contacts the skin of a patient and applies a plurality of RF pulses generated from the RF generator to tissue, a temperature measuring unit that monitors temperature information of the tissue to which the RF pulse is applied while the RF pulse is applied, and a control unit that controls parameters of the RF pulse based on the temperature information measured by the temperature measuring unit.

[0006] Here, the control unit can adjust the off time of the RF pulse based on the temperature information measured by the temperature measuring unit.

[0007] Specifically, if the temperature information measured by the temperature measuring unit exceeds a reference temperature value or a reference temperature increase rate, the control unit controls the off-time of the RF pulse to increase. Here, the off-time increased by the control unit may have a value in the range of 1 to 3 times the reference off-time. In addition, the device may further include a cooling unit that cools the electrode unit or the skin surface of the patient, and if the temperature information measured by the temperature measuring unit exceeds a reference temperature value or a reference temperature increase rate, the control unit may control the cooling performance of the cooling unit to increase.

[0008] And, when the temperature information measured by the temperature measuring unit is within the reference temperature range, the control unit can control the off-time of the RF pulse to be maintained at the reference off-time.

[0009] In addition, if the temperature information measured by the temperature measuring unit is lower than the reference temperature or lower than the reference temperature rise rate, the control unit can control to maintain the off-time of the RF pulse as the reference off-time and lower the cooling output of the cooling unit or increase the output of the RF pulse.

[0010] Meanwhile, the temperature measuring unit may be configured to measure a temperature change of the tissue while the plurality of RF pulses are applied at the first location, and the control unit may be configured to control the off time of the RF pulse applied to the second location based on the temperature change information at the first location measured by the temperature measuring unit.

[0011] Here, the control unit can adjust the off-time of the RF pulse applied to the second position to be longer than the reference off-time when the temperature change information measured at the first position is higher than the reference temperature change. In addition, the control unit can control the off-time of the RF pulse applied to the second position to be maintained at the reference off-time when the temperature change information measured at the first position is lower than the reference temperature change.

[0012] In addition, the treatment device using RF may further include a return unit that contacts the patient's skin at a position opposite to the electrode unit and to which the RF pulse applied from the electrode unit is returned.

[0013] Meanwhile, the above-described object of the present invention can also be achieved by a treatment device using RF, which includes an RF generator, an electrode unit that applies a plurality of RF pulses generated from the RF generator to a patient's tissue, a temperature measuring unit that monitors temperature information of the tissue to which the RF pulse is applied while the RF pulse is applied, and a control unit that controls parameters of the RF pulse based on the temperature information measured by the temperature measuring unit.

[0014] In addition, the above-described object of the present invention can be achieved by a control method for a treatment device using RF, which includes a step of transmitting an RF pulse generated from an RF generator to tissue through an electrode unit placed in contact with the patient's skin, a step of measuring the temperature of the tissue by a temperature measuring unit while the RF pulse is transmitted to the tissue, and a step of controlling a parameter of the RF pulse by a control unit based on the temperature information of the tissue measured by the temperature measuring unit.

[0015] Here, the step of controlling the parameters of the RF pulse can adjust the off time of the RF pulse based on the temperature information measured by the temperature measuring unit, and as an example, can be configured to adjust the off time of the RF pulse within a range of 1 to 3 times the reference off time.

[0016] Specifically, the step of controlling the parameters of the RF pulse may include: when the temperature information measured by the temperature measuring unit exceeds a reference temperature value or a reference temperature rise rate, the control unit may control the off-time of the RF pulse to increase.

[0017] And, if the temperature information measured by the temperature measuring unit is lower than the reference temperature value or lower than the reference temperature increase rate, the control unit can control to maintain the off time of the RF pulse and reduce the cooling performance of the cooling unit that cools the electrode unit or the skin of the patient with which the electrode unit is in contact.

[0018] Meanwhile, the above-described object of the present invention can be achieved by a method for controlling a treatment device using RF, including a step of transmitting an RF pulse generated from an RF generator to tissue at a first location through an electrode unit placed in contact with the patient's skin, a step of measuring a temperature change in the tissue while the RF pulse is transmitted to the tissue at the first location by a temperature measuring unit, and a step of controlling a parameter of an RF pulse transmitted to a second location by a control unit based on the temperature change at the first location measured by the temperature measuring unit.

[0019] And, the step of controlling the parameters of the RF pulse can adjust the off-time of the RF pulse transmitted to the second location based on the temperature change of the first location. For example, if the temperature change of the first location exceeds a reference temperature range, the control unit can control the off-time of the RF pulse transmitted to the second location to increase.

[0020] According to the present invention, by measuring the temperature of a tissue in real time while an RF pulse is applied and controlling the RF energy delivered to the tissue accordingly, uniform treatment can be performed despite various variables such as patient characteristics and treatment environment conditions.

[0021] In addition, when controlling the RF pulse through real-time temperature measurement, there is an advantage in that feedback control can be easily performed by maintaining the output and delay time of the pulse the same and adjusting the off time.

[0022] Figure 1 is a perspective view illustrating a treatment device using RF energy according to one embodiment of the present invention.

[0023] Figure 2 is a block diagram showing the main configuration of the treatment device according to Figure 1;

[0024] Figure 3 is a perspective view showing the handpiece of Figure 1;

[0025] Fig. 4 is an exploded perspective view showing the main configuration of the tip module of Fig. 3;

[0026] Fig. 5 is a cross-sectional view showing the main configuration of the tip module of Fig. 3;

[0027] Fig. 6 is a circuit diagram showing an RF circuit formed when treating a patient using the treatment device of Fig. 1.

[0028] Figure 7 is a graph showing the irradiation pattern of RF pulses and cooling pulses applied to tissue using the treatment device of Figure 1.

[0029] Figure 8 is a graph showing the temperature change of a tissue when an RF pulse is applied.

[0030] Figure 9 is a block diagram showing the main components involved in the treatment operation using RF energy in the treatment device of Figure 1.

[0031] Fig. 10 is a graph showing temperature information measured by a temperature measuring unit according to one embodiment;

[0032] Fig. 11 is a graph showing the pattern of the RF pulse adjusted when measuring the temperature information of Fig. 10.

[0033] Fig. 12 is a graph showing temperature information measured by a temperature measuring unit according to one embodiment;

[0034] Fig. 13 is a graph showing the pattern of the RF pulse adjusted when measuring the temperature information of Fig. 12.

[0035] Fig. 14 is a graph showing an example of a survey pattern of multiple RF pulses applied to two locations.

[0036] Fig. 15 is a graph showing another example of a survey pattern of multiple RF pulses applied to two locations;

[0037] Fig. 16 is a flowchart illustrating a control method of the treatment device of Fig. 1 according to an example.

[0038] Fig. 17 is a flowchart illustrating a control method of the treatment device of Fig. 1 according to another example.

[0039] Hereinafter, with reference to the drawings, a treatment device utilizing RF energy, its handpiece, and its tip module according to an embodiment of the present invention will be described in detail. In the following description, the positional relationship of each component is explained in principle based on the drawings. In addition, the drawings may simplify the structure of the invention or, if necessary, exaggerate it for convenience of explanation. Therefore, the present invention is not limited thereto, and it goes without saying that various devices can be added, modified, or omitted in addition to these.

[0040] Hereinafter, the term "treatment device using RF energy" refers to a medical RF device, and is an RF transmission device that transmits RF energy for the purpose of treatment. It also includes all devices for treating mammals, including humans. The treatment device may include various devices that transmit RF energy for the purpose of improving the condition of a lesion or tissue. The following examples will focus on a device for treating skin lesions. For example, it may mean that RF energy is used to locally heat skin tissue to improve wrinkles, tone and textural changes, scars and acne scarring, sagging mucosa, overall rejuvenation, hyperhidrosis, laxity, lifting, tightening, fat reduction, etc. However, it should be noted that the present invention is not limited thereto, and can be applied to various devices that transmit RF energy to various affected areas, including a device for surgically treating lesions of internal organs.

[0041] Hereinafter, "tissue" refers to the collection of cells that make up the various bodily organs of animals, including humans. This includes the skin tissue of the face, neck, arms, legs, and torso, as well as various tissues that make up various organs within the body.

[0042] Hereinafter, a non-invasive treatment device using RF is described as an example, in which the electrodes that transmit RF energy are in contact with the patient's skin surface during treatment. However, the present invention is not limited thereto. In addition, it is noted that the present invention can also be applied to invasive treatment devices in which the electrodes are inserted into skin tissue to transmit RF energy.

[0043] In addition, the following describes an RF treatment device having a monopolar type electrode unit as an example of a treatment device using RF; however, the present invention is not limited thereto. In addition, it is to be noted that the present invention can also be applied to a bipolar type RF treatment device in which the electrode unit itself is equipped with two electrodes.

[0044] Hereinafter, a treatment device according to one embodiment of the present invention will be described with reference to the drawings.

[0045] Fig. 1 is a perspective view illustrating a treatment device using RF energy according to one embodiment of the present invention. The treatment device of Fig. 1 is, as an example, a medical RF device for treating a patient's skin tissue, which uses RF energy as an energy source for treatment and is an RF transmission device that transmits RF energy to a treatment location.

[0046] As illustrated in FIG. 1, the treatment device according to the present embodiment includes a main body (10), a handpiece (20) connected to the main body (10), and a return unit (30). The main body (10) is provided with various components for operating the treatment device of the present embodiment. The outer surface of the main body (10) is provided with a setting unit for setting the treatment operation and treatment mode of the treatment device, and a display unit for displaying treatment-related information to the user. The inside of the main body (10) may be provided with components such as an RF generator (50), a refrigerant container, etc.

[0047] The handpiece (20) is a component that performs treatment at a treatment location and is provided in a form that a user can hold in his or her hand and use. An electrode (141) that contacts the patient's skin surface and transmits RF energy is provided at one end of the handpiece (20). Various operating parts for manipulating the treatment motion may be provided on the outer surface of the handpiece (20), and a conductive path for transmitting RF energy to the electrode (141) and a cooling channel for cooling the electrode are provided on the inside of the handpiece (20).

[0048] The return portion (30) is configured in the form of a pad containing a return electrode. The return electrode is composed of a conductive material and is positioned so as to contact a location on the patient's body opposite the treatment location where the electrode of the handpiece contacts the patient's body during treatment. Therefore, when RF energy is applied, the return electrode, together with the electrode (141) of the handpiece, forms a path through which RF energy is transmitted to the patient's body.

[0049] As illustrated in Fig. 1, the handpiece (20) and the return portion (30) are each connected to the main body by a connecting portion. The connecting portion may be formed of a cable or the like, and each is electrically connected to the main body to form an RF transmission path and is configured to transmit or receive various signals.

[0050] In this embodiment, the electrode (141) of the handpiece is configured as a monopolar type having a single polarity and is provided with a separate return portion; however, the present invention is not limited thereto. As another example, if the handpiece is configured as a bipolar type having electrodes of different polarities, the handpiece may be implemented without including the aforementioned return electrode pad.

[0051] Fig. 2 is a block diagram illustrating the main configuration of the treatment device according to Fig. 1. The RF generator (50) generates RF energy as energy used for treatment. The RF generator (50) generates RF pulses having various parameters depending on the patient's constitution, treatment purpose, treatment area, etc. The parameters may be at least one of output, pulse on time (pulse duration), pulse off time (interpulse interval), and frequency.

[0052] The RF generator (50) of the present embodiment can generate RF energy having at least two different frequencies. That is, the RF generator (50) can selectively generate RF energy having a first frequency and RF energy having a second frequency. Here, the frequency ranges can be divided into a first range (2 MHz or more and less than 6 MHz), a second range (6 MHz or more and less than 10 MHz), and a third range (10 MHz or more and 30 MHz or less) according to the penetration characteristics into the tissue. In this case, the first range is a frequency range having superior skin penetration characteristics compared to the second and third ranges, and the third range is a frequency range having inferior skin penetration characteristics compared to the first and second ranges. In this case, the first frequency may be a frequency within the first range, and the second frequency may be a frequency within the second range. Alternatively, the first frequency may be a frequency within the first range, and the second frequency may be a frequency within the third range. Alternatively, the first frequency may be a frequency within the second range, and the second frequency may be a frequency within the third range. When the RF generator (50) can generate RF energy of three different frequencies, the first frequency may be a frequency within a first range, the second frequency may be a frequency within a second range, and the third frequency may be a frequency within a third range.

[0053] The RF generator (50) can be controlled to generate RF energy having a selected frequency or RF energy combining RF pulses of multiple frequencies, depending on the progress of the selected treatment mode or treatment process, but with different frequency ratios.

[0054] The electrode unit (141) is connected to the RF generator unit (50) via an RF circuit and is configured to transmit RF energy generated from the RF generator unit to the patient's tissue. The electrode unit (141) is provided at one end of the handpiece (20) and is positioned so as to contact the patient's skin tissue when in use. In addition, it forms an RF circuit that passes through the patient's tissue together with the return unit (30) positioned so as to contact the patient's skin at an opposite position, and transmits RF energy to the patient's tissue.

[0055] And, the monitoring unit (35) is configured to monitor the RF energy transmitted to the patient's tissue. The monitoring unit (35) measures at least one RF parameter on the path of the RF circuit formed by the RF generation unit (50), the electrode unit (141), and the return unit (30). The monitoring unit can also use this to calculate the RF energy transmitted to the tissue, and can be configured to check whether the electrode unit or the return unit is in normal contact with the patient's skin surface, or to check various information during the treatment process.

[0056] The cooling unit (60) is configured to cool the treatment location where treatment is performed by the handpiece. The cooling unit (60) can utilize various cooling methods, and as an example, the cooling unit (60) of the present embodiment is configured to cool the treatment location using the heat of vaporization of a liquid refrigerant. The cooling method using the refrigerant can also cool the treatment location by directly spraying the refrigerant onto the treatment location, but in the present embodiment, the refrigerant is sprayed onto the rear of the electrode (141) that comes into contact with the treatment location during treatment to indirectly cool the treatment location. In this case, the skin surface in contact with the electrode (141) is cooled, thereby preventing the skin surface from being thermally damaged during treatment.

[0057] Specifically, the cooling unit (60) includes a refrigerant receiving portion that receives refrigerant, a cooling channel that forms a path through which the refrigerant received in the refrigerant receiving portion is delivered, and a cooling module that sprays the refrigerant delivered through the cooling channel to the rear surface of the electrode of the handpiece. The refrigerant receiving portion is provided in the main body or in a separate location. The cooling channel is connected from the refrigerant receiving portion to the cooling module, and at least a portion of the cooling channel is provided inside the handpiece. The cooling channel comprises at least one valve and sensor, and the control unit monitors the cooling process of the cooling unit (60) and controls the cooling performance using the same. Here, the cooling performance refers to the performance that can lower the temperature of the object for the same period of time, and may be the amount of refrigerant sprayed per unit time through the cooling module.

[0058] The temperature measuring unit (80) is a component that measures the temperature information of the tissue to which the RF pulse is applied. The temperature measuring unit (80) can obtain the temperature information in various ways, such as a thermocouple method, a resistance thermometer method, a thermistor method, and an optical method such as an infrared sensor. This temperature measuring unit (80) measures the temperature information of the tissue in real time while the RF pulse is applied to the tissue, and can also measure the temperature information of the tissue before and after the RF pulse is applied. As an example, the temperature measuring unit (80) according to the present embodiment includes a temperature sensor (142) provided on one side of an electrode, and the temperature sensor (142) measures the temperature of the contacted skin surface. However, in addition to this, it is also possible to measure the temperature information of the tissue by obtaining the temperature of the electrode part instead of the temperature of the skin surface, and it can also be configured to measure the temperature of the tissue in a non-contact manner instead of a contact method that contacts the skin surface.

[0059] In addition to the temperature measuring unit, the device may further include a sensing unit (not shown) that senses various information necessary for the operation of the treatment device during, before, or after the treatment. For example, the sensing unit may include at least one of an impedance sensor that measures the impedance of a tissue, a contact sensor that detects whether the electrode part is in contact with the skin surface, a movement sensor that detects the movement speed of the handpiece, and a pressure sensor that detects the pressure of a cooling channel. In the present embodiment, a contact sensor (not shown) that determines whether the electrode part is in contact is positioned adjacent to the electrode, and a pressure sensor for monitoring the pressure at which a refrigerant is provided may be positioned in the cooling channel.

[0060] The setting unit (70) is provided in the main body and is configured to set various operations of the treatment device, including the treatment mode. The user can set the treatment mode and treatment parameters to be performed through the setting unit (70). Specifically, the user can set at least one of the target energy to be delivered to the tissue using RF pulses, the number of pulses, the pulse width, and the frequency characteristics constituting the pulses through the setting unit (70). Alternatively, the user can set the treatment lesion, the target tissue to be treated, the target depth, etc.

[0061] The storage unit (90) is configured to store various information required for treatment and includes a memory element. The storage unit (90) is provided in the main body (10) and may additionally be provided in the handpiece (20) or the tip module (100). The storage unit (90) can store parameter information for each treatment mode, reference information related to measured values ​​obtained through the temperature measuring unit or sensor unit during treatment, control information according to sensed conditions, etc. In addition, the information sensed during treatment and information input by the user can be updated and recorded. In addition, the memory provided in the handpiece (20) or the tip module (100) can be configured to store identification information for the handpiece or the tip module.

[0062] The control unit (40) is a component that controls the operation of various components of the treatment device, such as the RF generator (50) and the cooling unit (60). For example, the control unit (40) controls various components using the contents set by the user through the setting unit (70) or the control information stored in the storage unit (90). The control unit controls each component using information obtained from the temperature measuring unit, the sensing unit, or the monitoring unit. For example, the control unit (40) receives temperature information detected by the temperature measuring unit (80) and controls the parameters of the RF pulse and the cooling performance of the cooling unit based on the temperature information. Alternatively, the control unit (40) controls the parameters of the RF pulse based on the information monitored by the monitoring unit. Here, the control unit (40) is configured to include a processor that performs calculation processing, and can calculate a control value using the received information using a preset algorithm and control various components based on the control value.

[0063] Fig. 3 is a perspective view illustrating the handpiece of Fig. 1. As illustrated in Fig. 3, the handpiece (20) comprises a main body (21) and a tip module (100). One end of the main body (21) is connected to a connecting portion, and various components for performing a treatment operation, such as an RF transmission circuit and a cooling path, are provided inside. An operation portion and a display portion, such as a display, may be provided on the outer surface of the main body (21). The tip module (100) is provided with an electrode (141) for transmitting RF energy by contacting the skin, and is detachably coupled to one end of the main body (21). The tip module (100) is provided with a circuit for transmitting RF energy to the electrode and a cooling structure for cooling the electrode and the treatment site. Hereinafter, the structure of the tip module will be described in more detail with reference to Figs. 4 and 5.

[0064] Fig. 4 is an exploded perspective view illustrating the main configuration of the tip module of Fig. 3, and Fig. 5 is a cross-sectional view illustrating the main configuration of the tip module of Fig. 3. Referring to Figs. 4 and 5, the tip module is configured to include a tip housing (110), an electrode module (140), a cooling module (150), an internal case (120), and a rear cover (130).

[0065] The tip housing (110) and the inner case (120) are coupled to each other to support the electrode module (140). A cooling module (150) is arranged inside the inner case (120). The rear cover (130) is coupled to the rear of the tip housing (110) while the electrode module (140), the inner case (120), and the cooling module (150) are arranged inside the tip housing (110). The tip housing (110) or the rear cover (130) is provided with a coupling structure for being fastened to the end of the main body (21) of the handpiece.

[0066] As illustrated in FIG. 4, the electrode module (140) is configured as a flexible substrate that is foldable, and an electrical element and a circuit for electrically forming the same are formed therein. The electrode (141) is arranged at the front of the electrode module (based on the state in which the electrode module is folded) and is exposed through the opening of the tip housing (110) to come into contact with the skin surface. The electrode (141) is configured to include a conductive layer formed on the flexible substrate, and the conductive layer is configured to be covered by a dielectric layer. Therefore, during treatment, the conductive layer of the electrode comes into contact with the skin through the dielectric layer, and when RF energy is applied to the electrode, the electrode transmits the RF energy to the skin tissue while being capacitively coupled with the skin tissue by the dielectric layer.

[0067] Meanwhile, as described above, a temperature sensor (142) and a contact sensor (not shown) are provided in the electrode module (140) adjacent to the electrode (141) to measure the temperature of the electrode or the skin surface and detect whether the electrode is in contact with the skin. In addition, the electrode module (140) further includes a memory, and the memory can store information of the tip module, such as the type of electrode, the size of the electrode, the pattern of the electrode, the size of the cooling space, etc. The electrode module (140) is provided with a conductive lead that extends rearward and is connected to the electrode, each sensor, and the memory described above. A terminal formed at the end of the conductive lead is exposed rearward when the rear cover (130) is coupled, and is electrically connected to the RF circuit on the main body (21) side of the handpiece when the tip module (100) is coupled.

[0068] And, as described above, the cooling module (150) is configured to spray the refrigerant delivered from the refrigerant receiving portion (210) along the cooling passage (201) to the rear of the electrode (141). A conduit having a cooling passage formed therein is provided on the rear side of the cooling module (150), and a plurality of injection holes (151) are provided on the front side of the cooling module (150). The rear end of the conduit is exposed to the rear side of the rear cover (130) when the tip module (100) is assembled. Therefore, when the tip module (100) is coupled to the main body (21) of the handpiece, the cooling passage of the conduit is coupled with the cooling passage on the main body (21) side to form a path through which the refrigerant provided from the refrigerant receiving portion (210) is delivered.

[0069] The tip module (100) having such a structure is detachably coupled to the main body end of the handpiece as described above. When the tip module (100) is coupled, the control unit (40) receives information about the tip module from the memory of the tip module (100), and controls the RF generator (50) and the cooling unit (60) in consideration of the information to transmit RF energy to the electrode of the tip module (100) and perform a process of cooling the electrode. In addition, the tip module (100) may be configured as a consumable, and may be replaced with a new tip module (100) when treating a new patient or exceeding the allowed number of uses.

[0070] The treatment device using RF energy described above is electrically connected to at least a portion of the patient's body to form an RF circuit, and transmits RF energy to the patient's tissue through this to perform treatment.

[0071] Figure 6 is a schematic circuit diagram of an RF circuit formed during patient treatment using the treatment device of Figure 1. The aforementioned RF energy-using treatment device forms an RF circuit by electrically connecting at least a portion of the device to the patient's body, thereby transmitting RF energy to the patient's tissues to perform treatment.

[0072] Specifically, the electrode unit (141) provided at the end of the handpiece comes into contact with one side of the patient's skin surface by the user's treatment motion during treatment. In addition, the return electrode of the return unit (30) comes into contact with the patient's skin surface at a position opposite to the electrode unit (141). The electrode unit (141) of the handpiece (20) is connected to the RF generator unit (50) provided in the main body through a connection unit. In addition, the return electrode of the return unit (30) is connected to a separate ground unit.

[0073] Accordingly, when treating a patient using a treatment device, an RF circuit such as that shown in FIG. 6 is formed. Here, the patient's body comes into contact with the electrode unit (141) and the return unit (30) and is capacitively coupled therewith. That is, the electrode unit (141) and the return unit (30) act as a charge plate of the capacitive element, and the patient's tissue interposed between the electrode unit (141) and the return unit (30) acts as a dielectric of the capacitive element. Therefore, the electrode unit (141) connected to the RF generation unit (50) acts as an active electrode and applies an RF pulse to the inside of the patient's tissue, and the return unit (30) connected to the ground unit acts as a return electrode and forms a path along which the RF pulse applied to the inside of the tissue returns. Through the RF circuit formed in this way, an RF pulse is applied to the patient's tissue to transmit RF energy, and treatment of the tissue is performed by the transmitted RF energy.

[0074] Fig. 7 is a graph illustrating an irradiation pattern of RF pulses and cooling pulses applied to tissue using the treatment device of Fig. 1. According to the present embodiment, the treatment device using RF energy applies multiple RF pulses (P) to one location while the electrode portion (141) is in contact with the patient's skin. Then, multiple cooling pulses (C) are applied corresponding to each RF pulse.

[0075] The application patterns and parameters of multiple RF pulses (R) and cooling pulses (C) are determined by the treatment mode set by the user. The storage unit (90) stores parameters of the RF pulses (R) and cooling pulses (C) corresponding to the treatment mode set by the user (e.g., the number of RF pulses, the output of the RF pulses, the on time of the RF pulses, the off time of the RF pulses, the output of the cooling pulses, the on time of the cooling pulses, the off time of the cooling pulses, etc.). The control unit (40) controls the RF generator (50) and the cooling unit (60) with parameters corresponding to the set treatment mode. Here, the on time is a time corresponding to the pulse width of the RF pulse (R) or the cooling pulse (C), and the off time means the time interval between each RF pulse that is continuously irradiated or the time interval between cooling pulses.

[0076] As an example, as illustrated in FIG. 7, during treatment in one treatment mode, six RF pulses are applied by a single shot operation, and each RF pulse has reference parameters corresponding to the set treatment mode, i.e., reference output and reference on-time. Then, the six RF pulses are sequentially applied with a time difference corresponding to the reference off-time, respectively. In addition, six cooling pulses are applied corresponding to the RF pulses, and each cooling pulse has a preset cooling output and cooling on-time. In the case of FIG. 7, the cooling pulse is irradiated in advance of the corresponding RF pulse, but the present invention is not limited thereto. The cooling pulse may be applied so as to have an on-type in which at least a portion of the on-time of the corresponding RF pulse overlaps. Alternatively, when the cooling unit is configured using a thermoelectric element instead of a refrigerant, it may be configured to continuously perform cooling while a plurality of RF pulses are applied.

[0077] Fig. 8 is a graph illustrating the temperature change of a tissue when an RF pulse is applied. As described above, when multiple RF pulses are applied, the temperature of the tissue increases, and thus the state of the tissue changes, resulting in treatment. In order to achieve the target treatment, it is desirable for the tissue to reach an appropriate temperature during the treatment. If the appropriate temperature is excessively exceeded, thermal damage may occur to the skin surface, and conversely, if the appropriate temperature is not reached, sufficient treatment effects may not be observed. Therefore, the storage unit (90) described above stores reference temperature information for each treatment mode and treatment parameter that can be selected by the user. Here, the reference temperature information may be expected temperature information when treatment is performed with the set mode and parameters, or may be appropriate temperature information that serves as a reference for achieving the target treatment effect.

[0078] As an example, as illustrated in FIG. 8, the reference temperature information is reference temperature information for a treatment mode in which six pulses (one set of treatment pulses) are applied by one shot operation. Separate reference temperature information may be stored according to the energy value (e.g., 30 J, 50 J, 70 J in FIG. 8) delivered by one set of treatment pulses. The reference temperature information in FIG. 8 has a time-temperature profile form that represents a temperature change trend over time while multiple RF pulses are irradiated, but is not limited thereto. In addition, the reference temperature information may be in various forms, such as a pulse-temperature profile form for continuously irradiated pulses, a form of a temperature change rate form over time, or an end temperature value at the end of a set.

[0079] FIG. 9 is a block diagram illustrating the main components involved in the treatment operation using RF energy in the treatment device of FIG. 1. During treatment using RF energy, as described above, the control unit (40) controls the RF generator (50) and the cooling unit (60) to apply RF pulses (R) and cooling pulses (C) corresponding to the set treatment mode and treatment parameters. In addition, the temperature measuring unit (80) measures the temperature information of the tissue to which the RF pulse is applied in real time during the treatment. This measurement is performed continuously during the treatment or at a shorter cycle than the cycle of the RF pulse applied during the treatment. The temperature information measured by the temperature measuring unit (80) may be the temperature value at that point in time or may be the temperature change rate per unit time. In addition, the temperature information measured by the temperature measuring unit (80) may be temperature information of the skin surface or temperature information of the subcutaneous tissue corresponding to the region of interest.

[0080] The control unit (40) receives temperature information measured by the temperature measuring unit (80) in real time while the treatment is in progress, and adjusts the parameters of the RF pulse (R) based on the measured temperature information. In particular, the control unit (40) compares the measured temperature information with the reference temperature information of the corresponding treatment mode, and adjusts the parameters of the RF pulse (R) in real time so that the measured temperature information follows the reference temperature information. At this time, the parameters of the RF pulse controlled by the control unit (40) may include at least one of the output of the RF pulse, the on time (pulse width) of the RF pulse, the off time of the RF pulse, and the number of applied RF pulses. In addition to this, the control unit may also adjust the output of the cooling pulse and the on time of the cooling pulse.

[0081] For example, according to the present embodiment, the control unit (40) can control the temperature of the tissue during treatment by controlling the off time of a plurality of RF pulses (R) among the parameters of the RF pulse, i.e., the time interval between the RF pulses that are sequentially irradiated. This has the advantage of being relatively easy to control by controlling the operation of some elements constituting the RF circuit, compared to controlling the output or on time of the RF pulse. In addition, controlling the off time of the RF pulse has the advantage of being able to control the temperature change of the tissue while maintaining the set amount of energy, compared to controlling the output or on time of the RF pulse. A predetermined time gap occurs for heat to be transferred from the skin surface to the subcutaneous tissue, and this time gap varies somewhat from patient to patient. Therefore, even if there is no overtreatment, the measured temperature may rise faster than the reference temperature due to the delay in heat diffusion at the skin surface. In this case, if overtreatment is determined and the output of the RF pulse is reduced to apply less energy than the set energy, a problem occurs in which sufficient treatment is not achieved. In contrast, by maintaining the RF pulse output and controlling the off-time, there is an advantage in that the target therapeutic effect can be achieved by delivering a preset amount of energy while preventing thermal damage to the skin by increasing the time for heat to diffuse from the skin surface.

[0082] FIG. 10 is a graph showing temperature information measured by a temperature measuring unit according to one embodiment, and FIG. 11 is a graph showing a pattern of an RF pulse adjusted when measuring the temperature information of FIG. 10.

[0083] For example, multiple RF pulses are applied to the patient's tissue with a set energy of 50J, and the temperature measuring unit (80) measures the temperature information of the tissue in real time during the treatment. However, in Fig. 10, for the convenience of explanation, only the temperature information (T1 to T6) measured at the end point of each RF pulse among the measured temperature information is displayed. As described above, while the treatment is in progress, the control unit (40) compares the temperature information (T1 to T6) measured by the temperature measuring unit (80) with the reference temperature information, and if the measured temperature information (T1 to T6) deviates from the reference temperature information, controls the RF parameter to adjust the temperature change of the tissue. At this time, whether the temperature information measured by the temperature measuring unit deviates from the reference temperature information can be determined based on whether the two values ​​exactly match, or can be determined based on whether the measured temperature information deviates from a predetermined tolerance range based on the reference temperature information.

[0084] As illustrated in Fig. 10, while a total of six RF pulses are applied, the measured tissue temperature information (T3) exceeds the reference temperature value as the third RF pulse is applied. In this case, the control unit (40) adjusts the RF parameters so that the tissue temperature during treatment follows the reference temperature value.

[0085] Specifically, the control unit (40) controls to increase the off-time of the RF pulse to be irradiated subsequently so that the temperature rise due to the additional RF pulse can be relatively limited. As shown in Fig. 11, the off-time between the first pulse and the second pulse, and between the second pulse and the third pulse are controlled to have a preset reference off-time (t0), but the off-time between the third pulse and the fourth pulse measured when the temperature rises excessively (t con ) is controlled to have a value greater than the reference off-time (t0) (t con>t0). As the off-time increases, the temperature rise in the tissue can be limited as the time for heat dissipation by the applied RF pulse increases.

[0086] Here, the adjusted off-time (t con ) can be controlled to a value in the range of 1 to 3 times the reference off-time (t0). Considering that the method of applying multiple RF pulses (R) for treatment is a method of increasing the temperature of the subcutaneous tissue by accumulating the heat energy of each RF pulse, if the off-time between RF pulses becomes excessively long, the heat energy of each is not accumulated but is dispersed (dissipated), making it difficult to achieve a treatment effect. Therefore, even if the off-time is increased, it is desirable to control it within the aforementioned range.

[0087] In this way, when the measured temperature information (T3, T4, T5) exceeds the reference temperature range, the off-time can be controlled to increase, and thereby the off-time can be controlled to increase until the measured temperature information corresponds to the reference temperature range.

[0088] However, since the irradiation point of the subsequent RF pulse is delayed as the off-time of the actual RF pulse increases, when the reference temperature information is in the form of a time-temperature profile, the comparison point can be determined by considering this delay when comparing the temperature measured after the point in time when the off-time increases with the reference temperature value. In addition, as the off-time is controlled to increase, the point in time at which the cooling pulse is irradiated can also be controlled accordingly (for example, the off-time of the cooling pulse increases by the increased off-time).

[0089] Meanwhile, in Fig. 10, when comparing the reference temperature information and the measured temperature information, a method of comparing each temperature value itself is described, but the present invention is not limited thereto. It may be based on the temperature change rate rather than the temperature value. That is, if the temperature change rate of the measured temperature information exceeds the allowable range compared to the temperature change rate of the reference temperature information, control may be performed to increase the off-time of the RF pulse as described above. This is because, even if the temperature value itself is within the appropriate range of the reference temperature information, a steep temperature increase is expected if the temperature change rate itself is relatively high, and therefore, the control unit is intended to proactively control the RF parameters in consideration of this. In addition, the control unit may also control the RF parameters by considering both the temperature value and the temperature change rate.

[0090] In addition, in Fig. 11, an example of controlling the off-time of the RF pulse as a parameter controlled by the control unit (40) is shown, but in addition to this, it is also possible to control to increase the cooling performance of the cooling unit (60) in addition to the off-time control when the measured temperature exceeds the reference temperature. For example, when the reference temperature is exceeded, the output of the cooling pulse (C) can be increased, or the on-time of the cooling pulse (C) can be controlled to increase.

[0091] Fig. 12 is a graph showing temperature information measured by a temperature measuring unit according to one embodiment, and Fig. 13 is a graph showing a pattern of an RF pulse adjusted when measuring the temperature information of Fig. 12.

[0092] Contrary to the above example, there may be cases where the temperature information (T1 to T6) of the tissue measured while the RF pulse (R) is applied does not reach the reference temperature information. For example, as illustrated in FIG. 12, when a total of six RF pulses (R) are applied, the temperature information (T3) of the tissue measured as the third RF pulse is applied may be lower than the reference temperature value. Even in such cases, the control unit (40) may adjust the RF parameters so that the temperature of the tissue further increases to follow the reference temperature value.

[0093] However, when the off-time is controlled to further increase the measured temperature (for example, when the off-time is shorter than the reference off-time (t0)), thermal damage may occur on the skin surface as heat on the skin surface accumulates without being sufficiently transferred to the subcutaneous layer. Therefore, even if the measured temperature is lower than the reference temperature, the off-time of the RF pulse is maintained as the reference off-time (t0). Instead, as shown in FIG. 13, the output of the RF pulse may be controlled to increase for further temperature increase (reference RF output (P0) < controlled RF output (P con )). In addition, the output of the cooling pulse can be controlled to reduce so that the cooling performance is lowered (reference cooling pulse output (c0) > controlled cooling pulse output (c con )).

[0094] On the other hand, although not shown in FIGS. 10 to 13, if the temperature measured by the temperature measuring unit during treatment generally maintains an appropriate range of the reference temperature information, the off-time of the RF pulse is controlled to maintain the set reference off-time (t0) constant, and other RF pulse parameters can also be controlled to maintain the set reference parameters.

[0095] As discussed above, the control unit (40) measures the temperature information of the tissue to which the RF pulses are applied in real time while performing treatment by applying multiple RF pulses (R), and controls the treatment parameters so that the measured temperature information follows the reference temperature information. This enables treatment to be performed with a consistent effect despite differences in the patient's skin characteristics and treatment environment.

[0096] Meanwhile, in FIGS. 10 to 13, a method for controlling RF parameters in real time while multiple RF pulses (R) are applied at a single location has been described. Furthermore, when treating multiple locations, it is also possible to control the treatment parameters of the next location to be controlled based on temperature information measured while treating the previous location.

[0097] Fig. 14 is a graph illustrating an example of an irradiation pattern of multiple RF pulses applied to two locations, and Fig. 15 is a graph illustrating another example of an irradiation pattern of multiple RF pulses applied to two locations. Treatment is performed by applying multiple RF pulses to a first location (six RF pulses in Figs. 14 and 15), and while the treatment is in progress, the temperature measuring unit measures the temperature information of the tissue in real time, and the control unit controls to adjust the RF parameters of the next location based on the measured temperature information.

[0098] Specifically, when the temperature information measured while treating the first position exceeds the reference temperature information, the control unit (40) increases the off-time of the RF pulse from the reference off-time (t0) to the increased off-time (t) when treating the second position, which is different from the first position. con ), and then control is made to apply multiple RF pulses (R) to the second location with the adjusted parameters (see Fig. 14). In addition, when adjusting the treatment parameters of the second location, it may include adjusting to increase the output of the cooling pulse so as to improve the cooling performance.

[0099] Conversely, if the temperature information measured while treating the first position is lower than the reference temperature information, the control unit controls the output of the RF pulse to a controlled pulse output (P) that is higher than the reference pulse output (P0) when treating the second position. con ), and then control to apply multiple RFs to the second position with the adjusted parameters (see Fig. 15). In this case, as in the case of Fig. 13, the off-time of the RF pulse is controlled to maintain the reference off-time (t0). In addition, when treating the second position, the output of the cooling pulse (c) is controlled to reduce the cooling performance. con ) can be adjusted to be lower than the standard cooling output (c0) to proceed with treatment.

[0100] Hereinafter, with reference to FIGS. 16 and 17, a control method of a treatment device according to the present embodiment will be described in detail. However, in explaining the control method of the treatment device, the contents already explained through FIGS. 1 to 15 will be replaced with the preceding description.

[0101] Figure 16 is a flowchart illustrating a control method of the treatment device of Figure 1 according to an example. To proceed with treatment, the user sets the treatment mode via the setting unit (70). Then, the user moves the handpiece (20) to bring the electrode unit (141) into contact with the patient's skin surface and initiates the treatment operation.

[0102] When treatment is initiated, the control unit (40) operates the RF generator (50) and the cooling unit (60) to apply RF pulses (R) and cooling pulses (C) to the patient's tissue. At this time, the control unit (40) applies RF pulses (R) and cooling pulses (C) having reference parameters in a preset pattern (S10). Here, the reference parameters are parameters corresponding to the treatment mode set by the user, and include RF pulse output, RF pulse on-time, RF pulse off-time, cooling pulse output, cooling pulse on-time, etc.

[0103] And, while the RF pulse (R) and cooling pulse (C) are applied multiple times, the temperature measuring unit (80) measures the temperature of the tissue to which the RF pulse is applied in real time (S20). And, the control unit (40) receives the temperature information of the measured tissue and compares it with the stored reference temperature information of the corresponding treatment mode (S30). And, based on the temperature information of the measured tissue, the parameters of the RF pulse and the parameters of the cooling pulse are controlled in real time, if necessary.

[0104] When the temperature information (e.g., temperature value or temperature change rate, etc.) measured by the temperature measuring unit (80) falls within the allowable range of the reference temperature information, the control unit (40) controls the RF pulse and cooling pulse to be applied while maintaining the reference parameters (e.g., maintaining t0), and repeats steps S10 to S30.

[0105] However, if the temperature information measured by the temperature measurement unit (80) is outside the allowable range of the reference temperature information, the control unit (40) adjusts the parameters of the RF pulse and cooling pulse to be irradiated thereafter so that the temperature information measured thereafter can follow the reference temperature information.

[0106] If the measured temperature exceeds the allowable range of the reference temperature information, the control unit (40) increases the off-time of the RF pulse (R) from the reference off-time (t0) to an increased off-time (t) so that the temperature can be limitedly increased by the RF pulse to be investigated later. con ) is adjusted (see Fig. 11). Furthermore, the output of the cooling pulse can be adjusted from the standard cooling output to an increased cooling output (S41).

[0107] Alternatively, if the measured temperature is lower than the allowable range of the reference temperature information, the control unit (40) increases the output of the RF pulse from the reference RF output (P0) to the increased RF output (P) so that the temperature can be further increased by the RF pulse to be investigated later. con) is adjusted. In addition, the output of the cooling pulse is reduced from the reference cooling output (c0) to the cooling output (c con ) is adjusted. However, in this case, the off-time of the RF pulse can be maintained the same as the reference off-time (t0) (S42, see Fig. 13).

[0108] In this way, if the measured temperature is outside the allowable range of the reference temperature information, the control unit adjusts the parameters as in S41 and S42 described above, and then applies an RF pulse (R) and a cooling pulse (C) having the adjusted parameters to proceed with subsequent treatment (S50).

[0109] And, while the treatment is in progress, temperature information is measured through the temperature measuring unit and parameter adjustments based on the temperature information are repeated until the treatment is terminated.

[0110] Fig. 17 is a flowchart illustrating a control method of the treatment device of Fig. 1 according to another example. The control method illustrated in Fig. 17 is a control method for treating multiple treatment locations by moving the position of the handpiece as in Figs. 14 and 15.

[0111] First, the user positions the handpiece (20) at the first position and performs treatment for the first position. Treatment at one position is performed by applying multiple RF pulses (R) and cooling pulses (C), as illustrated in FIG. 7. The control unit controls and applies the RF pulses (R) and cooling pulses (C) to a first parameter during treatment at the first position (S110). Here, the first parameter may be a reference parameter based on a set treatment mode.

[0112] And, the temperature measuring unit (80) measures the tissue temperature of the first location while treatment is being performed at the first location (S120). And, the control unit (40) receives the measured temperature information of the first location and compares it with the stored reference temperature information (S130). At this time, the temperature information measured at the first location and the reference temperature information may be a time-temperature profile indicating the temperature change during the time when multiple pulses are irradiated. The control unit determines the treatment parameter (second parameter) of the second location based on the result of comparing the measured temperature information.

[0113] If the temperature information measured at the first location is within the allowable range of the reference temperature information, the control unit maintains the treatment parameters at the second location to be the same as the parameters at the first location (e.g., maintains t0), and performs treatment at the second location using RF pulses (R) and cooling pulses (C) having the same parameters (S150).

[0114] On the other hand, if the temperature information measured at the first location is outside the allowable range of the reference temperature information, the control unit (40) adjusts some of the treatment parameters compared to the first location.

[0115] If the temperature measured at the first location exceeds the allowable range of the reference temperature information, the control unit increases the off-time of the RF pulse from the reference off-time (t0) to an increased off-time (t) so that the temperature can be limitedly increased by the RF pulse during the second location treatment. con ) is adjusted (see Fig. 14). Furthermore, the output of the cooling pulse can be adjusted from the standard cooling output to an increased cooling output (S141).

[0116] On the other hand, if the temperature measured at the first location is lower than the allowable range of the reference temperature information, the control unit (40) increases the output of the RF pulse from the reference RF output (P0) to the increased RF output (P) so that the temperature can be additionally increased by the RF pulse irradiated at the second location. con) is adjusted. In addition, the output of the cooling pulse is reduced from the reference cooling output (c0) to the cooling output (c con ) is adjusted. However, in this case, the off-time of the RF pulse can be maintained the same as the reference off-time (t0) (S142, see Fig. 15).

[0117] In this way, if the temperature information at a location where treatment was previously performed is outside the allowable range of the reference temperature information, the control unit adjusts the treatment parameters as described above in S141 and S142. Then, the adjusted parameters are used as the second parameters to apply RF pulses (R) and cooling pulses (C) to the second location to perform treatment (S150).

[0118] Then, a step of measuring temperature information at the second location while treatment is being performed at the second location is performed (S160). Thereafter, although not illustrated in FIG. 17, the temperature information measured at the second location is used to determine treatment parameters at the third location in the same manner as S130 to S142, and subsequent treatment is performed.

[0119] Above, in the case of the treatment device using RF energy according to the present invention and the control method thereof, a uniform treatment effect can be obtained even under various conditions by controlling the subsequent treatment parameters based on the temperature measured by the temperature measuring unit during the treatment. In particular, when controlling the treatment parameters, there is an advantage in that the target treatment effect can be obtained without causing thermal damage even if the heat diffusion characteristics of the skin are different by controlling the off-time of the RF pulse.

[0120] However, although FIGS. 1 to 17 have focused on a treatment device utilizing monopolar RF energy, the present invention is not limited thereto. A contact RF treatment device having a bipolar electrode section or an invasive RF treatment device that delivers RF energy by inserting a needle-shaped electrode into the tissue can also be implemented by applying the technical details described in detail in FIGS. 1 to 17.

[0121] While one embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment. It should be understood that those skilled in the art will appreciate that various modifications and variations can be made to the present invention without departing from the scope of the technical features defined in the appended claims.

Claims

1. RF generator; An electrode unit that contacts the patient's skin and applies multiple RF pulses generated from the RF generator to the tissue; A temperature measuring unit that measures temperature information of a tissue to which the RF pulse is applied while the RF pulse is applied; and A treatment device using RF, comprising a control unit that controls the parameters of the RF pulse based on temperature information measured by the temperature measuring unit.

2. In paragraph 1, The above control unit is a treatment device using RF that controls the off time of the RF pulse based on temperature information measured by the temperature measuring unit.

3. In paragraph 2, A treatment device using RF, wherein when the temperature information measured by the temperature measuring unit exceeds a reference temperature value or a reference temperature rise rate, the control unit controls the off-time of the RF pulse to increase.

4. In paragraph 3, A treatment device using RF, wherein the off-time increased by the above control unit is controlled to have a value in the range of 1 to 3 times the standard off-time.

5. In paragraph 3, Further comprising a cooling unit that cools the electrode unit or the patient's skin surface, The above control unit is a treatment device using RF that controls the cooling performance of the cooling unit to increase when the temperature information measured by the temperature measuring unit exceeds a reference temperature value or a reference temperature increase rate.

6. In paragraph 2, A treatment device using RF, wherein the control unit controls the off-time of the RF pulse to be maintained at the reference off-time when the temperature information measured by the temperature measuring unit is within the reference temperature range.

7. In paragraph 2, Further comprising a cooling unit that cools the electrode unit or the patient's skin surface, A treatment device using RF that controls the control unit to maintain the off-time of the RF pulse at the reference off-time and lower the cooling output of the cooling unit or increase the output of the RF pulse when the temperature information measured by the temperature measuring unit is lower than the reference temperature or lower than the reference temperature increase rate.

8. In paragraph 2, The temperature measuring unit measures the temperature change of the tissue while the plurality of RF pulses are applied at the first location, The above control unit is a treatment device using RF that controls the off-time of an RF pulse applied to a second location based on temperature change information at the first location measured by the temperature measuring unit.

9. In paragraph 8, The above control unit is a treatment device using RF that adjusts the off-time of the RF pulse applied to the second location to be longer than the reference off-time when the temperature change information measured at the first location is higher than the reference temperature change.

10. In paragraph 8, The above control unit is a treatment device using RF that controls the off-time of the RF pulse applied to the second position to be maintained at the reference off-time when the temperature change information measured at the first position is lower than the reference temperature change.

11. In paragraph 1, A treatment device using RF, which further includes a return portion that contacts the patient's skin at a position opposite to the electrode portion and to which the RF pulse applied from the electrode portion is returned. 12.RF generator; An electrode unit that applies a plurality of RF pulses generated from the RF generator to the patient's tissue; A temperature measuring unit that monitors temperature information of a tissue to which the RF pulse is applied while the RF pulse is applied; and A treatment device using RF, comprising a control unit that controls the parameters of the RF pulse based on temperature information measured by the temperature measuring unit.

13. A step of transmitting RF pulses generated from an RF generator to tissue through an electrode unit placed in contact with the patient's skin; A step of measuring the temperature of a tissue by a temperature measuring unit while the RF pulse is transmitted to the tissue; A method for controlling a treatment device using RF, comprising: a step of controlling parameters of the RF pulse by a control unit based on temperature information of a tissue measured by the temperature measuring unit; 14. In paragraph 13, A method for controlling a treatment device using RF, wherein the step of controlling the parameters of the RF pulse adjusts the off time of the RF pulse based on temperature information measured by the temperature measuring unit.

15. In paragraph 14, A method for controlling a treatment device using RF, characterized in that the step of controlling the parameters of the RF pulse comprises controlling the off-time of the RF pulse within a range of 1 to 3 times the reference off-time.

16. In paragraph 14, The step of controlling the parameters of the RF pulse is a method for controlling a treatment device using RF, wherein when the temperature information measured by the temperature measuring unit exceeds a reference temperature value or a reference temperature increase rate, the control unit controls the off-time of the RF pulse to increase.

17. In paragraph 14, The step of controlling the parameters of the RF pulse is a method for controlling a treatment device using RF, wherein, if the temperature information measured by the temperature measuring unit is less than a reference temperature value or less than a reference temperature increase rate, the control unit maintains the off time of the RF pulse and controls to reduce the cooling performance of the cooling unit that cools the electrode unit or the skin of the patient with which the electrode unit comes into contact.

18. A step of transmitting an RF pulse generated from an RF generator to a tissue at a first location through an electrode portion placed in contact with the patient's skin; A step of measuring a temperature change of the tissue by a temperature measuring unit while the RF pulse is transmitted to the tissue at the first location; and A method for controlling a treatment device using RF, comprising: a step of controlling parameters of an RF pulse transmitted to a second location by a control unit based on a temperature change at a first location measured by the temperature measuring unit; 19. In paragraph 18, A method for controlling a treatment device using RF, wherein the step of controlling the parameters of the RF pulse adjusts the off-time of the RF pulse transmitted to the second location based on a temperature change at the first location.

20. In paragraph 19, A method for controlling a treatment device using RF, wherein the step of controlling the parameters of the RF pulse is such that, when the temperature change of the first location exceeds a reference temperature range, the control unit controls the off-time of the RF pulse transmitted to the second location to increase.

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