KR20230129361A - High intensity focused ultrasound operating apparatus and driving method thereof - Google Patents

Abstract

A method of operating a high-intensity focused ultrasound treatment device that can increase the efficiency and stability of ultrasound treatment is provided. A method of operating a high-intensity focused ultrasound treatment device includes the steps of determining normal contact between the user's skin using a line-shaped contact detection sensor disposed on one side and the other side of one side of the ultrasound cartridge; The moisture content of the user's skin is measured through one or more line-shaped moisture detection sensors disposed inside the contact detection sensor and surrounding the ultrasonic discharge port on one side of the ultrasonic cartridge, and one or more oil detection sensors disposed on one side of the ultrasonic cartridge. And detecting oil content; A control module of the handpiece varying the amplitude of the driving power based on the detected moisture content and oil content and outputting the amplitude to the ultrasonic cartridge; And a step of the ultrasound cartridge changing the irradiation intensity of high-intensity focused ultrasound according to the driving power of the variable amplitude and outputting it to the user's skin, thereby forming thermal lesions at the same depth inside the dermal layer of the user's skin by the ultrasound. By doing this, the efficiency of ultrasound treatment can be increased.

Description

High intensity focused ultrasound operating apparatus and driving method thereof}

The present invention relates to an ultrasonic treatment device, and to a high-intensity focused ultrasound treatment device and a method of operating the same that can increase the efficiency and stability of high-intensity focused ultrasound treatment.

Recently, interest in skin care and obesity treatment is increasing day by day, and accordingly, various medical devices for skin care and obesity treatment are being developed. For example, various skin care medical devices are being developed for patients who wish to undergo face lifting or skin tightening procedures, and on the other hand, medical devices for treating obese patients are being developed.

As skin care medical devices, there are invasive medical devices that incise the skin tissue. However, as safety issues and patient resistance to the procedure are highlighted, non-invasive medical devices that can perform the procedure without incising the skin tissue are gradually gaining attention. there is. This trend is also evident in the field of medical devices for treating obesity patients, and interest in non-invasive medical devices for treating obesity has recently increased.

In line with this trend, there is a medical device that uses high intensity focused ultrasound (HIFU) as a non-invasive medical device that has recently been in the spotlight.

For example, there is an ultrasound medical device that irradiates high-intensity focused ultrasound to shallow skin tissue for skin beauty procedures to perform skin lifting or skin tightening procedures, and for obesity treatment, high-intensity focused ultrasound is irradiated to the subcutaneous fat layer to tighten fatty tissue. There is an ultrasonic medical device that burns or melts and decomposes.

Republic of Korea Patent Publication No. 2007-0065332 Republic of Korea Patent Publication No. 2011-0121701

The purpose of the present invention is to provide a high-intensity focused ultrasound treatment device and a method of operating the same that can increase the efficiency and safety of high-intensity focused ultrasound treatment.

The ultrasonic treatment device according to an embodiment of the present invention is detachably coupled to one side of the handpiece, generates high-intensity focused ultrasound according to the driving power provided from the handpiece, and outputs it to the user's skin through an discharge port on one side. ultrasound cartridge; and a control module that changes the amplitude of the driving power and outputs it to the ultrasonic cartridge according to the result of detecting the moisture content in the user's skin.

In addition, the ultrasound cartridge is characterized in that the irradiation intensity of the high-intensity focused ultrasound is changed and output according to the driving power of the variable amplitude.

A method of operating an ultrasonic surgical device according to an embodiment of the present invention includes the steps of detecting the moisture content of the user's skin through one or more moisture detection sensors when it is determined that there is normal contact between the ultrasonic cartridge and the user's skin; A control module of the handpiece varying the amplitude of the driving power based on the detected moisture content and outputting the amplitude to the ultrasonic cartridge; And a step where the ultrasound cartridge changes the irradiation intensity of high-intensity focused ultrasound according to the driving power of the variable amplitude and outputs it to the user's skin.

The high-intensity focused ultrasound treatment device of the present invention varies the output intensity of high-intensity focused ultrasound according to the moisture content detected from the user's skin, so that thermal lesions are formed at the same depth inside the dermis layer of the user's skin by the ultrasound. The efficiency of the procedure can be increased.

In addition, the high-intensity focused ultrasound treatment device of the present invention varies the output cycle of the high-intensity focused ultrasound according to the moving speed according to the change in position of the ultrasound cartridge, thereby forming thermal lesions at equal intervals within the dermal layer of the user's skin by the ultrasound. By doing this, the efficiency of ultrasound treatment can be increased.

In addition, the high-intensity focused ultrasound treatment device of the present invention can improve the stability of ultrasonic surgery by controlling the output of high-intensity focused ultrasound depending on whether the ultrasound cartridge is in contact with the skin or the position of the ultrasound cartridge is changed.

Figure 1 is a diagram showing a high-intensity focused ultrasound treatment device according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing the cartridge and handpiece of Figure 1 combined.
Figure 3 is a view showing the bottom of the cartridge of Figure 2.
FIG. 4 is a diagram showing the configuration of the control module of FIG. 2.
Figure 5 is a diagram showing a method of operating a high-intensity focused ultrasound treatment device according to an embodiment of the present invention.
Figure 6 is an exemplary operation diagram of the high-intensity focused ultrasound treatment device of the present invention.

The terms used in this specification and claims are general terms selected in consideration of their functions in various embodiments of the present invention. However, these terms may vary depending on the intention of technicians working in the field, legal or technical interpretation, and the emergence of new technologies. Additionally, some terms may be terms arbitrarily selected by the applicant. These terms may be interpreted as defined in this specification, and if there is no specific term definition, they may be interpreted based on the overall content of this specification and common technical knowledge in the relevant technical field.

In addition, the same reference numerals or symbols in each drawing attached to this specification indicate parts or components that perform substantially the same function. For convenience of explanation and understanding, different embodiments will be described using the same reference numbers or symbols. That is, even if all components having the same reference number are shown in multiple drawings, the multiple drawings do not represent one embodiment.

Additionally, in this specification and claims, terms including ordinal numbers such as 'first', 'second', etc. may be used to distinguish between components. These ordinal numbers are used to distinguish identical or similar components from each other, and the meaning of the term should not be interpreted limitedly due to the use of these ordinal numbers. For example, components combined with these ordinal numbers should not be interpreted as having a limited order of use or arrangement based on the number. If necessary, each ordinal number may be used interchangeably.

In this specification, singular expressions include plural expressions, unless the context clearly dictates otherwise. In the present application, terms such as 'comprise' or 'constitute' are intended to designate the presence of characteristics, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are intended to indicate the presence of one or more other It should be understood that this does not preclude the presence or addition of features, numbers, steps, operations, components, parts or combinations thereof.

Additionally, in an embodiment of the present invention, when a part is connected to another part, this includes not only direct connection but also indirect connection through other media. Additionally, the fact that a part includes a certain component does not mean that other components are excluded, but that it may further include other components, unless specifically stated to the contrary.

Figure 1 is a diagram showing a high-intensity focused ultrasound treatment device according to an embodiment of the present invention, and Figure 2 is a diagram showing a cross-section of the cartridge and handpiece of Figure 1 combined.

Referring to the drawing, the high-intensity focused ultrasound treatment device (hereinafter referred to as ultrasonic treatment device 10) of this embodiment uses high-intensity focused ultrasound (HIFU) to provide two different types of treatment to the skin tissue of the user, that is, the treatment subject. It may be a medical device that can perform the above procedures. At this time, procedures performed using the ultrasonic treatment device 10 may include non-invasive face lifting, skin tightening, or non-invasive subcutaneous fat layer reduction or removal procedures.

In particular, the ultrasonic treatment device 10 of this embodiment can improve the efficiency and safety of the procedure, allowing skin lifting or fat reduction procedures to be performed not only by experts at hospitals or skin care shops but also by non-experts at home.

Here, high-intensity focused ultrasound is used to form a thermal lesion inside the user's skin by focusing the ultrasound waves to a single focus. Thermal lesions may be thermal foci with temperatures above approximately 60°C. Therefore, the ultrasonic treatment device 10 of this embodiment forms multiple thermal lesions on the dermis layer or fascia layer (SMAS layer) located approximately 1.5 mm to 4.5 mm from the user's skin surface to perform face lifting or skin tightening procedures. Alternatively, fat reduction or removal procedures can be performed by forming multiple thermal lesions on the subcutaneous fat layer located approximately 6.0 mm to 15.0 mm from the skin surface.

This ultrasonic treatment device 10 may include an ultrasonic cartridge 200 that emits ultrasonic waves and a handpiece 100 that is coupled to the ultrasonic cartridge 200 to control the ultrasonic emission.

The ultrasonic cartridge 200 may emit ultrasonic waves at a predetermined intensity and cycle under the control of the handpiece 100. The ultrasonic cartridge 200 has an outlet 210 formed at one end of the main body 201 to emit ultrasonic waves to the outside, and is disposed at a position corresponding to the outlet 210 inside the main body 201. It may include a transducer 250 that emits high-intensity focused ultrasound through the discharge port 210.

Here, the transducer 250 is fixedly installed inside the main body 201, so that the position of the ultrasonic waves irradiated to the user's skin through the discharge port 210 can be constant. Additionally, according to another embodiment of the present invention, the transducer 250 of the ultrasound cartridge 200 may be installed to be movable in one direction inside the main body 201. In this case, a driving device (not shown) such as a step motor for moving the transducer 250 may be provided inside the handpiece 100.

A plurality of such ultrasound cartridges 200 may be provided depending on the purpose of the procedure. For example, the ultrasound cartridge 200 may be a cartridge for a non-invasive face lifting or skin tightening procedure, or a cartridge for a non-invasive subcutaneous fat layer reduction or removal procedure.

A medium such as water (not shown) may be injected into the main body 201 of the ultrasonic cartridge 200 in order to emit the ultrasonic waves emitted from the transducer 250 without loss through the discharge port 210. can simultaneously function to cool the transducer 250 to prevent it from overheating. Additionally, a film-type cover (not shown) may be installed inside the main body 201 to prevent the above-described medium from leaking to the outside.

One side of the main body 201 may be provided with an input terminal 205 for transmitting driving power for ultrasonic oscillation from the handpiece 100, which will be described later, to the transducer 250.

Additionally, various sensors provided in the control module 150 of the handpiece 100, which will be described later, may be placed on one surface adjacent to the discharge port 210 of the ultrasonic cartridge 200. Referring to FIG. 3, on the bottom of the main body 201 of the ultrasonic cartridge 200, one or more moisture detection sensors 153 are arranged to surround the discharge port 210, and contacts are arranged to face each other on one side and the other side of the bottom. A detection sensor 152 may be disposed.

The handpiece 100 may be a handheld member that allows the operator or user to manipulate the position for emitting ultrasonic waves to the user's skin through the above-described ultrasonic cartridge 200. This handpiece 100 may include a handle portion 101 that can be held by the operator or user's hand, and a mounting groove 102 configured to mount the ultrasound cartridge 200 on one side thereof.

In addition, a control module 150 for controlling the ultrasonic emission of the ultrasonic cartridge 200 may be disposed inside the handle 101 of the handpiece 100, and controls the ultrasonic emission together with the control module 150. The switch 110 may be placed on one side of the handle portion 101.

Accordingly, in the ultrasonic surgical apparatus 10 of this embodiment, ultrasonic waves are oscillated from the ultrasonic cartridge 200 and emitted to the outside when the switch 110 of the handpiece 100 is pressed by the user or operator, and the control module 150 ), the irradiation intensity, irradiation time, or irradiation cycle of the ultrasonic waves can be controlled and emitted to the outside. The configuration and operation of this control module 150 will be described in detail later.

A power terminal 105 may be disposed in the mounting groove 102 of the handpiece 100 at a position corresponding to the input terminal 205 of the ultrasound cartridge 200. The power terminal 105 is electrically connected to the input terminal 205 when the ultrasonic cartridge 200 is mounted in the mounting groove 102, thereby providing driving power and control signals to the ultrasonic cartridge 200 through the handpiece 100. can be transmitted.

Additionally, a fixing bracket 103 may be disposed at one end of the mounting groove 102 to secure the mounted ultrasonic cartridge 200 so that it is not separated. Accordingly, the ultrasonic cartridge 200 may also be provided with a fixing groove or hole (not shown) coupled to the fixing bracket 103.

This handpiece 100 can be connected to the main body (not shown) through a connection cable, and can receive driving power for ultrasonic emission from the main body and output it to the ultrasonic cartridge 200. Of course, the driving power applied to the ultrasonic cartridge 200 is controlled by the control module 150 of the handpiece 100, so that the ultrasonic irradiation intensity, irradiation time, or irradiation cycle through the ultrasonic cartridge 200 may be changed. You can.

Here, the driving power provided from the main body to the handpiece 100 may be a PWM signal. Accordingly, the control module 150 of the handpiece 100 can control the irradiation intensity or irradiation cycle of ultrasonic waves through the ultrasonic cartridge 200 by controlling and outputting the amplitude or duty ratio of the PWM signal to be variable.

FIG. 4 is a diagram showing the configuration of the control module of FIG. 2.

Referring to the drawings, the control module 150 may include a sensor unit 151 and an output control unit 155.

The sensor unit 151 may include a contact sensor 152, a moisture sensor 153, and a position sensor 154. Here, as previously described with reference to FIG. 3, one or more contact detection sensors 152 and moisture detection sensors 153 may be arranged adjacent to the discharge port 210 on one side of the ultrasonic cartridge 200. The position sensor 154 may be placed at least one of the inside of the handpiece 100 and the inside of the ultrasonic cartridge 200.

The contact detection sensor 152 can detect whether one surface of the ultrasound cartridge 200, that is, the discharge port 210, and the user's skin are in normal contact. The contact detection sensor 152 may be configured as an optical sensor that detects whether an optical signal is received. These contact detection sensors 152 may be arranged to face each other on one side and the other side of the main body 201 of the ultrasonic cartridge 200 with the discharge port 210 as the center.

The moisture detection sensor 153 can detect the moisture content in the user's skin when one surface of the ultrasonic cartridge 200 is in contact with the user's skin. One or more moisture detection sensors 153 may be arranged to surround the discharge port 210 on one side of the main body 201 of the ultrasonic cartridge 200.

The position sensor 154 can detect a change in position when the handpiece 100 or the ultrasound cartridge 200 coupled thereto is moved by the operator or user. This position sensor 154 may be one or more acceleration sensors or gyro sensors. Accordingly, the position sensor 154 can detect at least one of the movement, movement speed, movement acceleration, angular velocity, position, movement direction, tilt, and displacement of the handpiece 100 or the ultrasound cartridge 200. .

The output control unit 155 may vary the driving power applied to the ultrasonic cartridge 200 based on the detection result output from the sensor unit 151 and output the output. The output control unit 155 may include a contact determination unit 156, a moisture amount determination unit 157, a position determination unit 158, and a variable output unit 159.

The contact determination unit 156 may determine whether there is normal contact between the ultrasound cartridge 200 and the user's skin based on the detection result of the contact detection sensor 152.

The moisture content determination unit 157 may analyze and determine the moisture content in the user's skin based on the detection result of the moisture detection sensor 153.

The position determination unit 158 can analyze the degree of change in the position of the handpiece 100 or the ultrasound cartridge 200 based on the detection result of the position sensor 154 and determine the movement direction and speed accordingly. .

The variable output unit 159 determines the amplitude or duty of the driving power output to the ultrasonic cartridge 200 based on the determination result of at least one of the contact determination unit 156, the moisture amount determination unit 157, and the position determination unit 158. At least one of the ratios can be changed and output. Accordingly, the ultrasound output from the ultrasound cartridge 200 can be irradiated to the user's skin by controlling the irradiation intensity or irradiation cycle.

For example, if the contact determination unit 156 determines that there is normal contact between the ultrasonic cartridge 200 and the user's skin, that is, close contact with the skin, the variable output unit 159 responds to the determination result of the moisture amount determination unit 157. By varying the amplitude of the driving power based on output, the irradiation intensity of ultrasonic waves output from the ultrasonic cartridge 200 can be changed.

At this time, when the moisture content determined by the moisture content determination unit 157 is greater than or equal to the reference value, that is, the reference moisture content value, the variable output unit 159 may output a reduced amplitude of the driving power. Accordingly, the intensity of ultrasonic waves output from the ultrasonic cartridge 200 may be reduced.

On the other hand, when the moisture content determined by the moisture content determination unit 157 is less than the standard moisture content value, the variable output unit 159 can output the amplitude of the driving power by increasing it. Accordingly, the irradiation intensity of ultrasonic waves output from the ultrasonic cartridge 200 can be increased.

In this way, the variable output unit 159 increases or decreases the amplitude of the driving power output to the ultrasonic cartridge 200 according to the user's skin moisture content, thereby increasing or decreasing the intensity of the ultrasonic waves emitted from the transducer 250 of the ultrasonic cartridge 200. It can be decreased or increased.

Here, as the moisture content of the skin increases, the penetration rate of ultrasonic waves into the skin increases, so the variable output unit 159 can vary the amplitude of the driving power to be inversely proportional to the moisture content. Accordingly, the ultrasonic treatment device 10 of the present invention improves the efficiency of ultrasonic treatment by irradiating ultrasonic waves to the optimal location within the user's skin tissue to form thermal lesions even if the user's skin moisture status varies. You can.

Meanwhile, the variable output unit 159 may vary the driving power so that the irradiation time changes along with the irradiation intensity of the ultrasonic waves output from the ultrasonic cartridge 200. As described above, the higher the moisture content of the skin, the higher the penetration rate of ultrasonic waves, so the variable output unit 159 adjusts the duty ratio along with the amplitude of the driving power to reduce the irradiation time of the ultrasonic waves output from the ultrasonic cartridge 200. can be reduced. In addition, as the moisture content of the skin decreases, the penetration rate of ultrasonic waves decreases, so the variable output unit 159 can increase the duty ratio along with the amplitude of the driving power to increase the irradiation time of the ultrasonic waves output from the ultrasonic cartridge 200. there is.

In addition, when normal contact between the ultrasound cartridge 200 and the user's skin is determined by the contact determination unit 156 and the amplitude of the driving power is varied based on the determination result of the moisture content determination unit 157, the variable output unit (159) can change the irradiation cycle of ultrasonic waves output from the ultrasonic cartridge 200 by varying and outputting the duty ratio of the driving power based on the determination result of the position determination unit 158.

At this time, when the moving speed due to the change in position of the handpiece 100 or the ultrasound cartridge 200 determined by the position determination unit 158 is greater than or equal to the reference speed value, the variable output unit 159 supplies the driving power. It can be output by increasing the duty ratio. Accordingly, the irradiation cycle of ultrasonic waves output from the ultrasonic cartridge 200 may be shortened.

On the other hand, when the moving speed due to the change in position of the handpiece 100 or the ultrasound cartridge 200 determined by the position determination unit 158 is less than the reference speed value, the variable output unit 159 determines the duty of the driving power. It can be output by reducing the ratio. Accordingly, the irradiation cycle of ultrasonic waves output from the ultrasonic cartridge 200 may be prolonged.

In this way, the variable output unit 159 increases or decreases the duty ratio of the driving power output to the ultrasonic cartridge 200 depending on the moving speed of the handpiece 100 or the ultrasonic cartridge 200, thereby The irradiation cycle of ultrasonic waves in the deducer 250 may be increased or decreased.

Here, the variable output unit 159 can vary the duty ratio of the driving power to be proportional to the moving speed. Accordingly, the ultrasonic treatment device 10 of the present invention allows thermal lesions to be formed at optimal intervals inside the user's skin tissue even if the operating speed of the handpiece 100 by the operator or user varies, thereby enabling the ultrasonic treatment. Efficiency can be improved.

Meanwhile, if the contact determination unit 156 does not determine normal contact between the ultrasound cartridge 200 and the user's skin, the variable output unit 159 may stop outputting driving power to the ultrasound cartridge 200. Accordingly, the ultrasonic treatment device 10 of the present invention applies driving power to the ultrasonic cartridge 200 to irradiate ultrasonic waves to the user's skin while the ultrasonic cartridge 200 is in normal contact with the user's skin, thereby performing ultrasonic surgery. stability can be maintained.

In addition, if the position determination unit 158 does not determine a change in the position of the handpiece 100 or the ultrasonic cartridge 200, the variable output unit 159 may stop outputting the driving power to the ultrasonic cartridge 200. there is. Accordingly, the ultrasonic treatment device 10 of the present invention increases the stability of the ultrasonic treatment by applying driving power to the ultrasonic cartridge 200 according to a change in the position of the ultrasonic cartridge 200 to radiate ultrasonic waves to the user's skin. You can.

According to another embodiment of the present invention, the sensor unit 151 of the control module 150 may further include an oil detection sensor (not shown) that detects the oil content of the skin. One or more oil detection sensors may be placed on one side of the ultrasonic cartridge 200 together with the moisture detection sensor 153 described above.

Additionally, the output control unit 155 may be provided with an oil content determination unit (not shown) that analyzes and determines the oil content in the user's skin based on the detection results of the oil detection sensor.

In addition, the variable output unit 159 may vary the amplitude of the driving power output to the ultrasonic cartridge 200 based on the judgment result of the oil quantity determination unit and output the variable output. Here, as the oil content of the skin increases, the penetration rate of ultrasonic waves into the skin increases, so the variable output unit 159 can vary the amplitude of the driving power to be inversely proportional to the determined oil content. Accordingly, the ultrasonic treatment device 10 of the present invention can improve the efficiency of ultrasonic treatment by irradiating ultrasonic waves to the optimal location inside the user's skin tissue to form thermal lesions even if the user's skin oil condition varies. there is.

As described above, the ultrasonic treatment device 10 of the present invention controls the hand according to at least one of whether the ultrasonic cartridge 200 is in contact with the user's skin, the moisture content of the user's skin, and the movement speed according to the change in position of the ultrasonic cartridge 200. By varying the amplitude or duty ratio of the driving power output from the piece 100 to the ultrasonic cartridge 200, the efficiency and stability of ultrasonic treatment can be improved.

Figure 5 is a diagram showing a method of operating a high-intensity focused ultrasound treatment device according to an embodiment of the present invention, and Figure 6 is a diagram illustrating an operation of the high-intensity focused ultrasound treatment device of the present invention.

Hereinafter, the operation method of the high-intensity focused ultrasound treatment device 10 for a user's skin lifting or tightening treatment will be described as an example. However, the present invention is not limited to this, and the same operating method can be used in procedures to reduce or remove the user's subcutaneous fat layer.

First, the ultrasound cartridge 200 may be mounted on one side of the handpiece 100. At this time, the control module 150 of the handpiece 100 may determine whether the ultrasound cartridge 200 is properly installed.

Next, the control module 150 of the handpiece 100 may determine normal contact between the ultrasound cartridge 200 and the user's skin (S10).

A pair of contact detection sensors 152 may be disposed on one side of the ultrasonic cartridge 200, that is, the side in contact with the user's skin, centered on the outlet 210 through which ultrasonic waves are emitted. The contact detection sensor 152 can detect whether one surface of the ultrasound cartridge 200 is in contact with the user's skin. In addition, the contact determination unit 156 of the output control unit 155 can determine normal contact, that is, close contact, between the user's skin and the ultrasound cartridge 200 according to the detection result of the contact detection sensor 152.

When the contact determination unit 156 determines normal contact between the ultrasound cartridge 200 and the user's skin (Y), the moisture amount determination unit 157 of the output control unit 155 detects the moisture sensor in contact with the user's skin ( Based on the detection results of 153), the skin moisture content can be determined (S20).

Next, the variable output unit 159 compares the skin moisture content determined by the moisture content determination unit 157 with the reference moisture content, and outputs a variable amplitude of the driving power applied to the ultrasonic cartridge 200 according to the result. , the irradiation intensity of ultrasonic waves emitted from the ultrasonic cartridge 200 can be varied (S30).

For example, if the user's skin moisture content determined by the moisture content determination unit 157 is greater than or equal to the reference moisture content value, the variable output unit 159 may reduce the amplitude of the driving power and output the output. Accordingly, the transducer 250 of the ultrasound cartridge 200 may output ultrasound with a reduced irradiation intensity to the user's skin according to the driving power with a reduced amplitude (S40).

On the other hand, if the user's skin moisture content determined by the moisture content determination unit 157 is less than the reference moisture content value, the variable output unit 159 may increase the amplitude of the driving power and output the output. Accordingly, the transducer 250 of the ultrasound cartridge 200 can output ultrasound with increased irradiation intensity to the user's skin according to the driving power with increased amplitude (S50).

At this time, the transducer 250 of the ultrasound cartridge 200 irradiates the irradiation intensity according to the driving power with a variable amplitude at the current position, that is, the position where the discharge port 210 of the ultrasound cartridge 200 is in close contact with the user's skin. It is possible to output variable ultrasound waves to the user's skin once.

In addition, as described above, when the sensor unit 151 is equipped with an oil detection sensor and the oil content in the skin is determined by the oil content determination unit, the variable output unit 159 outputs the determined oil content and the reference oil content value. According to the results of this comparison, the amplitude of the driving power can be varied and output so as to be inversely proportional to the oil content.

Meanwhile, when the contact determination unit 156 determines that there is abnormal contact between the ultrasound cartridge 200 and the user's skin (N), the output control unit 155 stops outputting the driving power to the ultrasound cartridge 200 to The cartridge 200 may be placed in a standby state, that is, the ultrasonic output may be placed on standby (S70).

Next, after the ultrasonic waves with variable irradiation intensity are output from the ultrasonic cartridge 200 by the variable output unit 159, the handpiece 100 or the ultrasonic cartridge 200 may be moved in a predetermined direction. .

Accordingly, the position determination unit 158 may determine the moving speed of the ultrasound cartridge 200 based on the change in position of the handpiece 100 or the ultrasound cartridge 200 detected by the position sensor 154 ( S50).

Subsequently, the variable output unit 159 compares the moving speed determined by the position determination unit 158 with the reference speed value, and according to the result, the duty ratio of the driving power applied to the ultrasonic cartridge 200 is varied and output. By doing so, the irradiation cycle of the ultrasonic waves emitted from the ultrasonic cartridge 200 can be varied (S60).

For example, when the moving speed determined by the position determination unit 158 is greater than or equal to the reference speed value, the variable output unit 159 may increase the duty ratio of the driving power and output the output. Accordingly, the transducer 250 of the ultrasound cartridge 200 can output ultrasound with a shortened irradiation cycle to the user's skin according to the driving power with an increased duty ratio (S40).

On the other hand, when the moving speed determined by the position determination unit 158 is less than the reference speed value, the variable output unit 159 may output a reduced duty ratio of the driving power. Accordingly, the transducer 250 of the ultrasound cartridge 200 can output ultrasound with a longer irradiation cycle to the user's skin according to the driving power with a reduced duty ratio (S40).

At this time, the driving power output from the variable output unit 159 to the ultrasonic cartridge 200, that is, the driving power with a variable duty ratio, has its amplitude changed by the moisture amount determination unit 157 and the variable output unit 159. You can.

In addition, the transducer 250 of the ultrasound cartridge 200 can output ultrasound with variable irradiation intensity and irradiation cycle to the user's skin once at a moved position according to the driving power with variable amplitude and duty ratio.

On the other hand, if the moving speed of the ultrasound cartridge 200 is not determined by the position determination unit 158, in other words, the position change of the handpiece 100 or the ultrasound cartridge 200 is not detected by the position detection sensor 154. If not (N), the output control unit 155 may stop outputting the driving power to the ultrasonic cartridge 200 so that the ultrasonic cartridge 200 is in a standby state, that is, the ultrasonic output is on standby (S70).

Referring to Figure 6, the skin tissue 1 may be composed of a dermal layer 1a, a subcutaneous fat layer 1b, and a muscle layer 1c in that order from its surface. In addition, the ultrasonic treatment device 10 of this embodiment can form thermal lesions (A, B, C) in the dermal layer 1a of the user's skin with high-intensity focused ultrasound output from the ultrasound cartridge 200.

At this time, the output of the ultrasonic treatment device 10 of this embodiment can be controlled depending on whether the ultrasonic cartridge 200 is in normal contact with the skin. In addition, even if the ultrasound cartridge 200 is in normal contact with the skin, if there is no change in the position of the ultrasound cartridge 200, the ultrasound cartridge 200 may be controlled to output only one ultrasound at the current contact position. Accordingly, the present invention can improve the safety of ultrasonic procedures.

Additionally, the ultrasonic treatment device 10 of this embodiment can be controlled so that the intensity of the ultrasonic output, that is, the irradiation intensity, varies depending on the user's skin moisture content. At this time, the ultrasonic treatment device 10 may vary the irradiation intensity of the ultrasonic waves in inverse proportion to the moisture content. Accordingly, as shown in FIG. 6, multiple thermal lesions (A, B, C) may be formed in the dermal layer 1a of the user's skin at the same depth d1 from the surface.

Here, each of the thermal lesions (A, B, C) may be formed in a spherical, oval, or droplet shape with a diameter of 0.5 mm to 1.5 mm. It may be desirable for these thermal lesions (A, B, C) to be formed at a depth (d1) selected from 1.5 mm, 3.0 mm, and 4.5 mm, and their diameter is approximately 1.0 mm ± 0.2 mm. It may be desirable to be

Additionally, in the ultrasonic surgical apparatus 10 of this embodiment, the output period of the ultrasonic waves, that is, the irradiation period, may vary depending on the moving speed according to the change in position of the handpiece 100 or the ultrasonic cartridge 200. At this time, the ultrasonic treatment device 10 may vary the ultrasonic irradiation period to be inversely proportional to the moving speed. Accordingly, as shown in FIG. 6, a number of thermal lesions (A, B, C) are formed in the dermal layer 1a of the user's skin as the ultrasound cartridge 200 moves, and they are spaced at regular intervals d2. It can be formed to be spaced apart.

Here, the thermal lesions (A, B, C) may be formed to have a spacing (d2) of 0.5 mm to less than 2.0 mm. And, these thermal lesions (A, B, C) can be formed at the same depth (d1) by the variable irradiation intensity previously controlled according to the user's skin moisture content.

Therefore, the ultrasonic treatment device 10 of the present invention changes the irradiation intensity and irradiation cycle of the ultrasonic waves output from the ultrasonic cartridge 200 according to the user's skin moisture content and the moving speed of the ultrasonic cartridge 200, thereby Multiple thermal lesions (A, B, C) can be formed within (1a) at the same depth and at equal intervals, thereby improving the efficiency of ultrasonic treatment.

Above, an embodiment of the present invention has been described, but those skilled in the art can add, change, delete or add components without departing from the spirit of the present invention as set forth in the patent claims. The present invention may be modified and changed in various ways, and this will also be included within the scope of rights of the present invention.

In addition, the above-described terms are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

10: High-intensity focused ultrasound treatment device 100: Handpiece
150: Control module 151: Sensor unit
152: Contact detection sensor 153: Moisture detection sensor
154: Position detection sensor 155: Output control unit
156: Contact determination unit 157: Moisture amount determination unit
158: Position determination unit 159: Variable output unit
200: ultrasonic cartridge 210: discharge port
250: transducer

Claims (3)

Determining normal contact between the user's skin using a line-shaped contact detection sensor disposed on one side and the other side of the ultrasonic cartridge;
The moisture content of the user's skin is measured through one or more line-shaped moisture detection sensors disposed inside the contact detection sensor and surrounding the ultrasonic discharge port on one side of the ultrasonic cartridge, and one or more oil detection sensors disposed on one side of the ultrasonic cartridge. and detecting oil content;
A control module of the handpiece varying the amplitude of the driving power based on the detected moisture content and oil content and outputting the amplitude to the ultrasonic cartridge; and
A method of operating a high-intensity focused ultrasound treatment device comprising the step of the ultrasound cartridge changing the irradiation intensity of high-intensity focused ultrasound according to the driving power of the variable amplitude and outputting the irradiation intensity to the user's skin. According to paragraph 1,
If normal contact between the ultrasound cartridge and the user's skin is not determined,
A method of operating a high-intensity focused ultrasound treatment device, further comprising the step of the control module stopping the output of the driving power to wait for the ultrasound output of the ultrasound cartridge. According to paragraph 1,
After the step of varying the amplitude of the driving power based on the moisture content and the oil content and outputting the amplitude to the ultrasonic cartridge,
Detecting a change in position as the ultrasonic cartridge moves using a position sensor;
Determining the moving speed of the ultrasound cartridge from the detected position change;
The control module outputting a variable duty ratio of the driving power based on the moving speed; and
A method of operating a high-intensity focused ultrasound treatment device further comprising the step of changing the irradiation cycle of the high-intensity focused ultrasound according to the driving power of the variable duty ratio of the ultrasound cartridge and outputting the output to the user's skin.