KR20230054084A - Skin treatment apparatus using high-intensity focused ultrasound, control method for that and treatment method using that - Google Patents

Abstract

The present invention provides a skin treatment device using focused ultrasound provided on a transducer configured to generate ultrasound focused on a treatment area and a tip and comprising at least one electrode configured to transmit RF energy to the treatment area, a control method thereof, and a skin treatment method using the same. According to the present invention, the skin treatment device using focused ultrasound, the control method thereof, the skin treatment method using the same can be remodeled to heat a large area first when heating tissue and then to heat a target point, thereby shortening treatment time. In addition, a recovery effect can be improved by activating cell activity.

Description

Skin treatment device using focused ultrasound, control method thereof, and skin treatment method using the same

The present invention relates to a skin treatment device using focused ultrasound, a control method thereof, and a skin treatment method using the same, and more particularly, to a skin treatment device using RF energy and ultrasonic energy, a control method thereof, and a skin treatment method using the same. will be.

Tissue treatment using high intensity focused ultrasound has been mainly used for the treatment of cancer cells, but recently, a technique for regenerating tissue by irradiating the skin has been developed and used.

Conventional skin treatment devices using focused ultrasound operate by exposing the transducer to a liquid environment to increase the transmission efficiency when the ultrasound is transmitted through a medium due to its characteristics. Korean Patent Registration No. 1246557 is disclosed in relation to such a conventional focused ultrasound treatment device.

However, this conventional focused ultrasound treatment device simply transmits only ultrasound energy to tissues, thereby increasing treatment time and tissue recovery time.

Republic of Korea Patent No. 1246557

An object of the present invention is to provide a skin treatment device using focused ultrasound to reduce treatment time and increase recovery effect, a control method thereof, and a skin treatment method using the same in order to solve the above problems.

As a means to solve the above problems, it includes a handpiece and a cartridge provided at an end of the handpiece toward one side, and the cartridge passes through a tip of the cartridge to a transducer and a tip configured to generate ultrasound focused on a treatment area. It is provided, and a skin treatment device using focused ultrasound including at least one electrode configured to transmit RF energy to a treatment area may be provided.

Meanwhile, the electrode may be configured to increase transmission efficiency of ultrasound by heating the treatment area to a first temperature.

In addition, the transducer may generate ultrasonic waves to heat the treatment area to a second temperature higher than the first temperature.

Meanwhile, the first temperature may be a temperature that does not cause coagulation of the treatment temperature, and the second temperature may be a temperature that can cause coagulation of the treatment temperature.

Meanwhile, a control unit configured to control energy delivered to the transducer and the electrode may be further included, and the control unit may control the electrode so that at least the transducer generates ultrasonic waves and heats the entire tissue.

In addition, the electrode may be provided adjacent to the ultrasonic passage area of the tip.

Furthermore, the electrode is composed of a plurality and may be composed of a bipolar electrode.

On the other hand, the transducer may be configured so that the position within the cartridge can be adjusted.

In addition, the step of transmitting RF energy to at least one electrode provided in the tip of the cartridge of the handpiece and the focused ultrasound including the step of transferring energy to the transducer provided in the cartridge to generate ultrasonic waves. A control method of a skin treatment device using may be provided.

Meanwhile, a step of determining whether the first treatment temperature has been reached may be further included in determining whether the temperature of the treatment area has risen to the first temperature based on the value measured by the sensor after the step of transmitting the RF energy.

Also, in the step of transferring energy to the transducer, energy may be transferred so that the treatment area may be raised to a second temperature higher than the first temperature.

Here, the first temperature may be a temperature that does not cause coagulation of the treatment temperature, and the second temperature may be a temperature that can cause coagulation of the treatment temperature.

Meanwhile, the step of transmitting RF energy to the electrodes may be performed using a plurality of electrodes disposed adjacent to the periphery of an ultrasonic passage area through which ultrasonic waves generated by the transducer pass through the cartridge.

Meanwhile, the step of delivering RF energy to the electrode may be performed by delivering bipolar RF energy.

Meanwhile, the step of transmitting energy to the transducer may be performed by adjusting the position of the transducer within the cartridge.

In addition, a skin treatment method using focused ultrasound may include transmitting RF energy to an area including a treatment area and remodeling a tissue by transferring focused ultrasound energy to the treatment area.

Meanwhile, in the step of transmitting RF energy, the treatment area may be heated to a first temperature so as to increase the transmission efficiency of ultrasound to the treatment area.

In the remodeling of the tissue, the tissue may be remodeled by heating the treatment area to a second temperature higher than the first temperature.

Here, the first temperature may be a temperature that does not cause coagulation of the treatment temperature, and the second temperature may be a temperature that can cause coagulation of the treatment temperature.

Meanwhile, the step of delivering RF energy to the area including the treatment area may be performed by delivering bipolar RF energy.

Also, the remodeling of the tissue may be performed by adjusting a focusing position of ultrasound energy.

Furthermore, the step of delivering the RF energy may end together with the end of the step of remodeling the tissue, which is performed by adjusting the focusing position of the ultrasound energy.

The skin treatment device using focused ultrasound according to the present invention, the control method thereof, and the skin treatment method using the same can shorten the treatment time because when heating a tissue, a wide area is first heated and then remodeled by heating a target point. In addition, it can enhance the recovery effect by activating cellular activity.

1 is a perspective view showing a handpiece of a skin treatment device using focused ultrasound, which is an embodiment according to the present invention.
Fig. 2 is a bottom view showing the tip of the cartridge in the first embodiment.
3 is a sectional view of the cartridge in the first embodiment.
4 is a diagram illustrating the concept of RF energy transfer by electrodes in the first embodiment.
5 is a diagram showing the concept of transmitting ultrasonic energy in the first embodiment.
6 is a plan view showing the concept of a tissue heating area and a treatment area in the first embodiment.
7 is a graph showing the speed of sound according to the water temperature.
8 is a graph showing the density of water according to temperature.
9 is a graph showing the focusing ratio of ultrasonic waves according to temperature.
10 is a perspective view of a skin treatment device using focused ultrasound, which is a second embodiment according to the present invention.
11 is a bottom view showing the end of the tip in the second embodiment.
12 is a cross-sectional view of a tip in a second embodiment.
Fig. 13 is a diagram showing an operating state in the second embodiment.
14 is a plan view showing the concept of a heating area and a treatment area in the second embodiment.
15 is a flowchart of a control method of a skin treatment device using focused ultrasound, which is a third embodiment according to the present invention.
16 is a flowchart of a control method of a skin treatment device using focused ultrasound, which is a fourth embodiment according to the present invention.
17 is a flowchart of a skin treatment method using focused ultrasound, which is a fifth embodiment according to the present invention.
18 is a flowchart of a skin treatment method using focused ultrasound, which is a sixth embodiment according to the present invention.

Hereinafter, a skin treatment device using focused ultrasound according to an embodiment of the present invention, a control method thereof, and a skin treatment method using the same will be described in detail with reference to the accompanying drawings. In addition, in the description of the following embodiments, the name of each component may be called a different name in the art. However, if they have functional similarity and identity, even if a modified embodiment is employed, it can be regarded as an equivalent configuration. In addition, signs added to each component are described for convenience of description. However, the contents of the drawings in which these symbols are written do not limit each component to the scope in the drawings. Likewise, even if an embodiment in which the configuration in the drawings is partially modified is employed, it can be regarded as an equivalent configuration if there is functional similarity and identity. In addition, in light of the level of a general technician in the relevant technical field, if it is recognized as a component that should be included, the description thereof will be omitted.

As used herein, treatment refers to local heating of skin tissue to achieve the effect of improving Wrinkles, Tone and Textural Changes, Scars and Acne Scarring, Sagging mucosa, Overall Rejuvenation, Hyperhidrosis, laxity, lifting, tightening, fat reduction, etc. Let us explain what it means.

Hereinafter, referring to FIGS. 1 to 9 , a first embodiment according to the present invention, which is a skin treatment device using focused ultrasound, will be described.

1 is a perspective view showing a handpiece 10 of a skin treatment device using focused ultrasound, which is an embodiment according to the present invention.

As shown, the skin treatment device using focused ultrasound according to the first embodiment of the present invention may include a hand piece 10 and a cartridge 20 provided at an end of the hand piece 10. The handpiece 10 is configured so that the user can hold the tip 21 of the cartridge 20 at a desired location and perform treatment. On the other hand, although not shown, one side of the handpiece 10 may be provided with a cable connected to the main body of the skin treatment device.

Fig. 2 is a bottom view showing the tip 21 of the cartridge 20 in the first embodiment.

Referring to Figure 2, the tip 21 of the cartridge 20 is configured to be in close contact with the skin. An ultrasonic pass-through region may be formed in the center of the tip 21, and a plurality of electrodes 23 may be provided around the ultrasonic pass-through region. The ultrasonic transducer 22 provided in the cartridge 20 transfers ultrasonic energy to the treatment area Vt through the ultrasonic pass-through area, and the electrode 23 transfers RF energy to the treatment area Vt to heat it. It is structured so that The electrode 23 is provided in a form surrounding the ultrasonic pass-through area, and may be configured along the path of each arc.

3 is a sectional view of the cartridge 20 in the first embodiment.

Referring to FIG. 3 , an ultrasonic transducer 22 may be provided inside the cartridge 20 to generate ultrasonic waves. Also, a plurality of electrodes 23 may be provided at an end of the cartridge 20 . The cartridge 20 may be sealed in a state in which a liquid medium for ultrasonic transmission is accommodated therein.

FIG. 4 is a diagram showing the concept of RF energy transfer by the electrode 23 in the first embodiment.

Referring to FIG. 4 , in this embodiment, RF energy can be transmitted by the electrode 23 while the tip 21 of the cartridge 20 is in close contact with the skin. The RF energy may be, for example, bipolar RF energy. At this time, when bipolar RF energy is applied, a transmission path of RF energy is formed by one pair of coupled electrodes 23, and the tissue t is heated along the path through which the RF energy is transmitted to form a heating area in a wide area ( Vh) occurs.

At this time, a wide area including the treatment area Vt is heated by the electrode 23 disposed outside the ultrasonic pass-through area 24 . RF energy transmitted by the electrode 23 may increase the temperature of the treatment area Vt to a first temperature. The first temperature is a temperature at which coagulation does not occur in the treatment area Vt, and may be, for example, about 45°C. When the tissue t is heated to a first temperature by transmitting RF energy to a wide range of the tissue t, the activity of the cells can be improved while preventing destruction of the tissue t in the tissue t including the treatment area Vt. do. When the activity of cells in the tissue (t) is increased, it helps to regenerate and recover the skin, and can exhibit the effect of improving thin wrinkles and skin tone. At this time, since the power and frequency of the transmitted RF energy may be variously determined according to the depth of the tissue t, the distance between the electrodes 23, etc., a detailed description of numerical values will be omitted.

5 is a diagram showing the concept of transmitting ultrasonic energy in the first embodiment.

Referring to FIG. 5, the concept in which ultrasonic energy generated by the ultrasonic transducer 22 passes through the tip 21 of the cartridge 20 and is focused in the ultrasonic focusing region Vf in the tissue t is shown. . In the ultrasound focusing region Vf, energy is concentrated and locally heated, so that the temperature of the tissue t can be raised to a second temperature. The second temperature is a temperature at which remodeling of the tissue t is possible, and for example, may be about 70° C. at which coagulation may occur.

Referring back to FIGS. 4 and 5, in the first embodiment of the present invention, RF energy is first transferred by the electrode 23 to raise the first area, which is a wide area including the treatment area Vt, to a first temperature , Then, a focal zone (Vf) in which ultrasound is focused by the transducer 22 becomes a second area to be treated, and the second area is raised to a second temperature so that the tissue t can be remodeled. . When the first region is heated by transmitting RF energy, cell activity can be increased while preventing direct remodeling of the tissue t. In addition, by preheating the tissue t using RF energy, the initial temperature increases when ultrasonic waves are transmitted, so that it is easy to heat the tissue t to the second temperature even when low-energy ultrasonic waves are used. Therefore, it is possible to improve the transmission efficiency of high-intensity focused ultrasound (HIFU).

6 is a plan view showing the concept of the heating region Vh and the treatment region Vt of the tissue t in the first embodiment.

Referring to FIG. 6, a cross section of the tissue t at a depth at which ultrasound is focused is shown. The RF energy delivered to the tissue t by the electrode 23 heats a large first area, and as a result, the first area is raised to a first temperature. Meanwhile, the ultrasonic energy transmitted by the transducer 22 is focused in the second region, and as a result, the second region is raised to a second temperature. As described above, the second temperature is a temperature at which coagulation of the tissue t occurs and is about 70°C. In order to perform remodeling on a wide area using the skin treatment device according to the present invention, the user adjusts the position of the handpiece 10, that is, the position where the tip 21 contacts, so that RF energy and ultrasonic energy can be transmitted. do. In this case, a process of applying RF energy and ultrasonic energy while repeatedly changing the position may be performed.

Meanwhile, although not shown, control of the RF energy may be performed by estimating the temperature in the tissue t and based on the estimated value. For example, an impedance value of the tissue t may change according to a change in temperature, and the current temperature of the core part may be estimated based on the impedance value of the tissue t or the amount of change in the impedance value. In addition, as for the temperature in the tissue t, the temperature of the skin surface can be measured and the temperature of the core can be experimentally estimated by considering the temperature gradient in the tissue t.

When it is determined that the temperature of the core, estimated by various methods, has risen to the first temperature, the controller blocks the transmission of RF energy.

Meanwhile, in the case of remodeling a point other than the illustrated second region among the first regions in FIG. 6 , when the tip 21 of the handpiece 10 is moved, the tissue t may still have a temperature close to the first temperature. . Even in this case, the control unit may estimate the temperature of the tissue t in the manner described above, and may block transmission of the RF energy when it is determined that the temperature of the tissue t has risen to the first temperature during the transfer of the RF energy. there is. In this case, the time required for the tissue t to rise to the first temperature will be shorter than when the initial tissue t is heated.

On the other hand, in order to understand the transmission efficiency of ultrasonic waves, it is necessary to find out the sound velocity and impedance values according to temperature.

7 is a graph showing the speed of sound according to the water temperature.

Referring to FIG. 7, according to the water temperature, the sound velocity rises rapidly from 0 to 60 ° C, rises gently from 60 to 80 ° C, and decreases at 80 ° C to 100 ° C. indicate

8 is a graph showing the density of water according to temperature.

Referring to FIG. 8, the density of water tends to gradually increase as the temperature of water rises from 0 to 100 °C.

9 is a graph showing the focusing ratio of ultrasonic waves according to temperature.

Referring to FIG. 9, it is possible to check the impedance value and focus ratio (Intensity Ratio (IHIFU/Iskin)) of water according to temperature, and the impedance of water is the geometric mean (√) of the impedance of the Hifu transducer 22 and the skin. xy), the ultrasonic intensity increases.

일 때 초음파는 최대 강도로 전달될 수 있다. 한편, 일반적인 트랜스듀서(22)의 임피던스는 3.5x107(kg/m²s) 이며, 피부의 경우 1.6x106(kg/m²s)이므로, 물 온도가 증가하여 물의 임피던스가 증가할수록 초음파 강도는 증가하게 된다. 이러한 경향은 물 온도가 60℃ 로 가열될때까지 유지되며, 물 온도가 60℃일 때 초음파의 전달효율은 최대가 된다.in other words

Ultrasound can be transmitted at maximum intensity when On the other hand, since the impedance of the general transducer 22 is 3.5x107 (kg/m ² s) and the skin is 1.6x106 (kg/m ² s), the ultrasonic intensity increases as the water temperature increases and the impedance of the water increases. will do This tendency is maintained until the water temperature is heated to 60 ℃, and when the water temperature is 60 ℃, the transmission efficiency of ultrasonic waves is maximized.

Therefore, it is possible to improve the transmission efficiency of the ultrasonic wave by appropriately heating the tissue t before transmitting the ultrasonic wave using RF energy. However, when heating up to 60 ° C. in order to exert the maximum efficiency of the above-described ultrasound, it is difficult to achieve the purpose of improving cell activity due to increased damage to the tissue (t). Accordingly, a temperature for preventing damage to the tissue t while appropriate protein denaturation may be set as the first temperature. The first temperature may be about 45° C., and the tissue (t) heated to the first temperature improves the efficiency of transmitting ultrasonic waves, improves the activity of the tissue (t), and also restores the tissue (t). will help in

Hereinafter, referring to FIGS. 10 to 14 , a skin treatment device using focused ultrasound as a second embodiment according to the present invention will be described in detail. This embodiment may also include the same elements as those of the previous embodiment, and descriptions of these elements will be omitted to avoid redundant description.

Figure 10 is a perspective view of a skin treatment device using focused ultrasound as a second embodiment according to the present invention, Figure 11 is a bottom view showing the end of the tip 21 in the second embodiment, Figure 12 is in the second embodiment A cross-sectional view of the tip 21.

Referring to FIGS. 10 to 12 , the second embodiment of the skin treatment device using focused ultrasound according to the present invention may be configured such that the transducer 22 is reciprocally movable in one direction within the cartridge 20. That is, while the transducer 22 moves while the tip 21 of the cartridge 20 is fixed in close contact with the skin, the second area can be created at multiple points.

At this time, the electrode 23 may be disposed around the ultrasonic pass area 24 determined by the movement of the transducer 22 .

The cartridge 20 may include a driving unit to adjust the position of the transducer 22 inside the cartridge 20 . The driving unit is configured to reciprocate the transducer 22 in one direction.

Fig. 13 is a diagram showing an operating state in the second embodiment.

Referring to FIG. 13 , after RF energy is transferred by the electrode 23 in the second embodiment, ultrasonic energy can be transmitted while moving the transducer 22 . The control unit performs repetitive steps of applying ultrasonic energy after moving the transducer 22 a certain distance according to a preset algorithm, and then moving the transducer 22 a certain distance and then applying ultrasonic energy. Then, when the position of the transducer 22 moves to the end point, treatment at the current position may be completed.

14 is a plan view showing the concept of a heating area Vh and a treatment area Vt in the second embodiment. Referring to FIG. 14 , in the present embodiment, a region through which RF energy is transmitted by the electrode 23 may be formed longer, and while the position is adjusted in the horizontal direction within the heated first region, a plurality of second regions may be formed. can be formed at points. In this way, when the transducer 22 is configured to be movable, a large area can be automatically treated without the user having to move the handpiece 10 every time, and the user's intervention can be minimized. In addition, since the repetitive movement of the handpiece 10 can be omitted, the overall treatment time can be shortened.

Hereinafter, a control method of a skin treatment device using focused ultrasound, which is a third embodiment according to the present invention, will be described with reference to FIG. 15 .

Referring to FIG. 15, a method for controlling a skin treatment device using focused ultrasound according to a third embodiment of the present invention includes transmitting RF energy to an electrode (S110), determining whether the treatment area has risen to a first temperature ( S120) and transferring energy to the transducer (S130).

The step of delivering RF energy to the electrode ( S110 ) corresponds to a step of delivering RF energy to the tissue through the electrode in contact with the tissue. When the RF energy is transmitted to the tissue, deep heat is generated in the tissue, and the temperature may be increased in a wide area including the treatment area.

Determining whether the treatment area has risen to the first temperature (S120) is a step of determining whether or not the temperature of the treatment area has risen to the first temperature by estimating the temperature of the treatment area. This step may be performed by measuring the temperature of the skin surface using the temperature sensor provided in the handpiece and using the temperature of the core estimated based on the temperature. Alternatively, the temperature can be estimated based on the impedance value of the tissue contacted through the electrode or the amount of change in the impedance value. The first temperature may be about 45° C., which promotes cell activation and prevents excessive denaturation.

The step of transmitting energy to the transducer ( S130 ) corresponds to a step of transmitting energy to focus the ultrasound energy on the treatment area using the transducer. In this step, the energy transmitted to the transducer finally passes through the skin and is focused at the core to heat the tissue. As the ultrasonic energy is focused, the tissue may be raised to a second temperature at which coagulation occurs. The second temperature may be about 70°C.

Meanwhile, the control method according to the third embodiment described above may be performed in the skin treatment device using the focused ultrasound described with reference to FIGS. 1 to 6 .

Hereinafter, a control method of a skin treatment device using focused ultrasound, which is a fourth embodiment according to the present invention, will be described with reference to FIG. 16 .

16 is a flowchart of a control method of a skin treatment device using focused ultrasound, which is a fourth embodiment according to the present invention.

Referring to FIG. 16, a method for controlling a skin treatment device using focused ultrasound, which is a fourth embodiment according to the present invention, includes transmitting RF energy to an electrode (S210), and determining whether the treatment area has risen to a first temperature (S210). S220), adjusting the position of the transducer (S230), transferring energy to the transducer (S240), and determining whether the transducer has transferred energy from its final position (S250). can

The step of transmitting RF energy to the electrode (S210) and the step of determining whether the treatment area has risen to the first temperature (S220) are the steps of transferring RF energy to the electrode of the third embodiment described above (S110) and the treatment area is 1 may be performed in the same manner as the step of determining whether the temperature has risen (S120).

The step of adjusting the position of the transducer (S230) corresponds to the step of determining the treatment area by adjusting the position of the transducer. This step may be performed by adjusting the position of the transducer in the cartridge.

The step of transmitting energy to the transducer (S240) corresponds to a step of generating local heat by transmitting ultrasonic energy to the treatment area at the position of the adjusted transducer. In this step, the tissue is raised to the second temperature, causing coagulation of the tissue and eventually remodeling the tissue.

Meanwhile, the step of transferring RF energy to the electrode described above (S210) may be continuously performed even while the step of adjusting the position of the transducer (S230) and the step of transferring energy to the transducer (S240) are performed. .

In the step of determining whether the transducer transmits energy at the final position (S250), it is determined whether an ultrasonic transducer capable of reciprocating along one direction within the cartridge is located at the end and transmits ultrasonic energy.

In the step of determining whether the above-described transducer has transferred energy to the final position (S250), if the transducer has not yet transferred energy to the final position, adjusting the position of the transducer again and transmitting ultrasonic energy ( S230 and S240) may be repeatedly performed.

On the other hand, when it is determined that the transducer has delivered energy to the final position, it is determined that the treatment is finished in the area where the handpiece is currently located, and energy delivery is terminated (S260). At this time, the RF energy transmitted to the electrode is also transmitted, and the transmission of all energy is blocked.

Then, when the user changes the treatment position and brings the tip of the handpiece into close contact with the skin, this embodiment can be performed again.

Meanwhile, the control method of the fourth embodiment described above may be performed in the skin treatment device using the focused ultrasound described with reference to FIGS. 10 to 14 .

Hereinafter, a skin treatment method using focused ultrasound, which is a fifth embodiment according to the present invention, will be described with reference to FIG. 17 .

17 is a flowchart of a skin treatment method using focused ultrasound, which is a fifth embodiment according to the present invention.

Referring to FIG. 17, in a skin treatment method using focused ultrasound, which is a fifth embodiment according to the present invention, RF energy is transmitted to an area including a treatment area (S1100), and determining whether the treatment area has risen to a first temperature (S1200) and transmitting focused ultrasound energy to remodel the tissue (S1300).

Transmitting RF energy to the area including the treatment area (S1100) corresponds to heating a wide area including the treatment area using electrodes in contact with the skin.

Determining whether the treatment area has risen to the first temperature (S1200) is heating the treatment area to about 45° C., which is effective in improving cell activity, fine wrinkles, and skin tone by the RF energy transmitted into the tissue corresponds to If the temperature is not raised to the first temperature, the RF energy is continuously transferred to a wide area.

The step of remodeling the tissue by transmitting focused ultrasound energy (S1300) corresponds to raising the treatment region to a second temperature by transmitting focused ultrasound energy when it is determined that the treatment region is raised to the first temperature. The second temperature may be a temperature at which coagulation occurs in the treatment area. The second temperature may be, for example, 70°C.

Meanwhile, the fifth embodiment may be performed using the skin treatment device using ultrasound described in the first embodiment.

Hereinafter, a skin treatment method using focused ultrasound, which is a sixth embodiment according to the present invention, will be described with reference to FIG. 18 .

18 is a flowchart of a skin treatment method using focused ultrasound, which is a sixth embodiment according to the present invention.

Referring to FIG. 18, a skin treatment method using focused ultrasound according to a sixth embodiment of the present invention includes transmitting RF energy to an area including a treatment area (S2100), and determining whether the treatment area has risen to a first temperature. (S2200), adjusting the ultrasound focusing position (S2300), remodeling the tissue (S2400), and determining whether tissue remodeling has been performed at the final location (S2500).

The step of delivering RF energy to the area including the treatment area (S2100) and the step of determining whether the treatment area has risen to the first temperature (S2200) are the steps of delivering RF energy to the area including the treatment area of the fifth embodiment described above. (S1100) and determining whether the treatment area has risen to the first temperature (S1200) may be performed in the same manner.

Adjusting the ultrasonic focusing position (S2300) corresponds to adjusting the focusing position by adjusting the position of the ultrasonic transducer within the cartridge provided in the handpiece. In this step, the above-described RF energy may be delivered and the position of the heated tissue in a direction parallel to the skin surface may be adjusted, and the depth of the focal zone within the tissue may be adjusted and changed.

The step of remodeling the tissue (S2400) corresponds to a step of applying ultrasonic energy to the tissue using an ultrasonic transducer. Focused ultrasound energy within tissue creates a treatment area by locally heating the tissue. Ultrasound energy may raise the tissue to a second temperature, which is a treatment temperature. The second temperature may be a temperature at which coagulation enabling tissue remodeling occurs.

The step of determining whether tissue remodeling has been performed at the final position (S2500) corresponds to a step of determining when tissue remodeling has been completed by transmitting ultrasonic energy while the transducer is located at the end.

When it is determined that tissue remodeling has been performed at the final location, the energy delivery is terminated (S2600). On the other hand, if tissue remodeling is not completed within the movement distance of the transducer, the process of moving the transducer to the untreated area by adjusting the focusing position of the ultrasound and remodeling the tissue (S2300, S2400) may be repeatedly performed. there is.

The step of delivering RF energy to the area including the treatment area (S2100) may be continuously performed to maintain the first temperature while the step of adjusting the ultrasound focusing position and the step of remodeling the tissue are performed.

Meanwhile, the sixth embodiment may be performed using the skin treatment device using ultrasound described in the above-described second embodiment.

The skin treatment device using the focused ultrasound according to the present invention described above, the control method thereof, and the skin treatment method using the same can shorten the treatment time because when heating a tissue, a wide area is first heated and then remodeled by heating a target point. there is. In addition, it can enhance the recovery effect by activating cellular activity.

10: handpiece
20: cartridge
21: Tips
22: transducer
23: electrode
24: ultrasonic pass area
t: organization
Vf: ultrasonic focusing area
Vh: heating zone
Vt: treatment area

Claims (22)

hand piece; and
A cartridge provided at the end of the handpiece toward one side,
the cartridge,
a transducer configured to pass through the tip of the cartridge and generate ultrasound focused on a treatment area; and
A skin treatment device using focused ultrasound including at least one electrode provided on the tip and configured to transmit RF energy to the treatment area. According to claim 1,
The electrode is a skin treatment device using a focused ultrasound configured to increase the transmission efficiency of the ultrasound by heating the treatment area to a first temperature. According to claim 2,
The transducer is a skin treatment device using a focused ultrasound for generating the ultrasound so as to heat the treatment area to a second temperature higher than the first temperature. According to claim 3,
The first temperature is a temperature that does not cause coagulation of the treatment area,
The second temperature is a skin treatment device using focused ultrasound, which is a temperature capable of generating coagulation of the treatment area. According to claim 4,
Further comprising a control unit configured to control energy delivered to the transducer and the electrode,
The control unit controls the electrode so that at least the transducer can heat the treatment area before generating the ultrasound, skin treatment device using a focused ultrasound. According to claim 4,
The electrode is a skin treatment device using a focused ultrasound provided adjacent to the ultrasound pass-through area of the tip. According to claim 6,
The electrode is composed of a plurality, a skin treatment device using a focused ultrasound consisting of a Bipolar electrode. According to claim 7,
The transducer is a skin treatment device using a focused ultrasound configured to be able to adjust the position in the cartridge. Transmitting RF energy to at least one electrode provided on the tip of the cartridge of the handpiece; and
A control method of a skin treatment device using focused ultrasound, comprising the step of transmitting energy to a transducer provided in the cartridge so that the transducer can generate ultrasound waves. According to claim 9,
A skin treatment device using focused ultrasound, further comprising determining whether a first treatment temperature has been reached based on a value measured by a sensor after the step of transmitting the RF energy, determining whether or not the temperature of the treatment area has risen to the first temperature. control method. According to claim 10,
The step of transmitting energy to the transducer is a method of controlling a skin treatment device using focused ultrasound to deliver energy so that the treatment area can be raised to a second temperature higher than the first temperature. According to claim 11,
The first temperature is a temperature that does not cause coagulation of the treatment temperature,
The second temperature is a control method of a skin treatment device using focused ultrasound, which is a temperature capable of generating coagulation of the treatment temperature. According to claim 12,
The step of transmitting RF energy to the electrode is control of the skin treatment device using focused ultrasound performed using a plurality of electrodes disposed adjacent to the periphery of the ultrasound pass-through region through which the ultrasound waves generated by the transducer pass through the cartridge. method. According to claim 13,
The step of delivering RF energy to the electrode is a control method of a skin treatment device using a focused ultrasound performed by delivering Bipolar RF energy. According to claim 14,
The step of transmitting energy to the transducer is a control method of a skin treatment device using a focused ultrasound performed by adjusting the position of the transducer in the cartridge. delivering RF energy to an area including a treatment area; and
A skin treatment method using focused ultrasound comprising the step of remodeling a tissue by transmitting focused ultrasound energy to the treatment area. According to claim 16,
The transmitting of the RF energy is a skin treatment method using focused ultrasound for heating the treatment area to a first temperature so as to increase the transmission efficiency of the ultrasound to the treatment area. According to claim 17,
The step of remodeling the tissue,
Skin treatment method using focused ultrasound for remodeling tissue by heating the treatment area to a second temperature higher than the first temperature. According to claim 18,
The first temperature is a temperature that does not cause coagulation of the treatment area,
The second temperature is a skin treatment method using focused ultrasound, which is a temperature capable of generating coagulation of the treatment area. According to claim 19,
The step of delivering RF energy to the area including the treatment area is a skin treatment method using focused ultrasound performed by delivering Bipolar RF energy. According to claim 20,
The step of remodeling the tissue is performed by adjusting the focusing position of the ultrasound energy. According to claim 21,
The step of transmitting the RF energy is a skin treatment method using focused ultrasound that is terminated at the end of the step of remodeling the tissue performed by adjusting the focusing position of the ultrasound energy.

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