Cosmetic method and radio frequency instrument

Abstract

The application discloses a cosmetic method and a radio frequency instrument, wherein the cosmetic method comprises the following steps: emitting ultrasonic waves to the skin of a target part; receiving echoes formed by the ultrasonic waves after contacting different skin tissues respectively; determining a skin state parameter of the target part according to the echoes; determining a target diagnosis and treatment strategy matched with the skin state parameter of the target part; and adjusting output radio frequency energy according to the target diagnosis and treatment strategy. The skin state parameter of the target part is determined by the ultrasonic waves, and then the target diagnosis and treatment strategy matched with the skin state parameter is determined according to the skin state parameter, so that the cosmetic method can formulate a targeted diagnosis and treatment strategy for different users or different parts of the skin of the same user, thereby achieving the best cosmetic effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetic technology, in particular to a cosmetic method and a radio frequency instrument. BACKGROUND

[0002] At present, the output power of common household cosmetic radio frequency instruments is mostly fixed, and the facial skin data cannot be collected during diagnosis and treatment, so the radio frequency energy cannot be adjusted according to the specific condition of the user's skin during use. For different users, the skin condition may be different, and the required radio frequency energy is also different, therefore, the radio frequency instrument with fixed output power is easy to cause over-treatment or insufficient treatment, thereby affecting the cosmetic effect. SUMMARY

[0003] Therefore, the present application provides a cosmetic method and a radio frequency instrument which can perform targeted diagnosis and treatment according to the actual skin condition of different users or different parts of the same user.

[0004] A cosmetic method applied to a radio frequency instrument, comprising:

[0005] emitting an ultrasonic wave to the skin of a target part;

[0006] receiving echoes formed by reflection of the ultrasonic wave after contacting different skin tissues respectively when penetrating the skin, and determining a skin state parameter of the target part according to the echoes;

[0007] determining a target diagnosis and treatment strategy matched with the skin state parameter of the target part, and adjusting the output radio frequency energy according to the target diagnosis and treatment strategy.

[0008] In some embodiments, the receiving echoes formed by reflection of the ultrasonic wave after contacting different skin tissues respectively when penetrating the skin, and determining a skin state parameter of the target part according to the echoes, comprises:

[0009] receiving echoes formed by reflection of the ultrasonic wave after contacting an epidermis layer and a dermis layer respectively when penetrating the skin;

[0010] determining the thickness of collagen according to the echoes.

[0011] In some embodiments, the determining the thickness of collagen according to the echoes, comprises:

[0012] obtaining a first time T1 of the ultrasonic wave from emission to reflection after contacting the surface of the collagen and being received according to the echoes formed by reflection of the ultrasonic wave after contacting the epidermis layer;

[0013] a second time T2 is obtained according to the echo formed by the ultrasonic wave contacting the dermis layer and reflecting, the second time T2 being from the ultrasonic wave being emitted to being reflected after penetrating the collagen and being received;

[0014] a thickness of the collagen is determined according to a difference between the first time T1 and the second time T2 and a propagation speed S of the ultrasonic wave in the collagen.

[0015] In some embodiments, the determining the target treatment strategy matching the skin state parameter of the target part comprises:

[0016] indexing the skin state parameter of the target part, searching in a preset beauty scheme library, and selecting a matching target treatment strategy from a plurality of treatment strategies stored in the beauty scheme library.

[0017] In some embodiments, before the emitting the ultrasonic wave to the skin of the target part, the method further comprises:

[0018] detecting a current position and identifying a target part corresponding to the current position;

[0019] outputting an initial radio frequency energy corresponding to the target part.

[0020] In some embodiments, the skin surface is attached with a mask composed of color blocks connected with each other, and the detecting the current position and identifying the target part corresponding to the current position comprises:

[0021] detecting a color of the current position by a color sensor, and determining the target part corresponding to the current position according to a correspondence between different colors on the mask and human face parts.

[0022] In some embodiments, the adjusting the output radio frequency energy according to the target treatment strategy comprises:

[0023] adjusting a size of the initial radio frequency energy according to the target treatment strategy, so that a size of the output radio frequency energy is adapted to the skin state parameter of the target part.

[0024] In some embodiments, the method further comprises:

[0025] when the target part has completed treatment, issuing a prompt information, and returning to the detecting the current position and identifying the target part corresponding to the current position.

[0026] In some embodiments, the method further comprises:

[0027] detecting a current temperature of the skin of the target part;

[0028] When the current temperature of the skin at the target site is higher than the preset temperature, the following protection strategy is executed: stop outputting radio frequency energy, reduce the output of radio frequency energy, or issue an alarm message.

[0029] The present invention also provides a radio frequency device, comprising:

[0030] Radio frequency unit, used to generate radio frequency energy;

[0031] A transmitter used to emit ultrasonic waves onto the skin of a target area;

[0032] A receiver is used to receive the echoes formed after the ultrasonic waves penetrate the skin and come into contact with different skin tissues;

[0033] The controller is used to determine the skin state parameters of the target area based on the echo, and to determine the target treatment strategy based on the skin state parameters, so as to control the radio frequency unit to adjust the output radio frequency energy according to the target treatment strategy.

[0034] The cosmetic method provided by this invention first determines the skin condition parameters of the target area using ultrasound, and then determines a matching treatment strategy based on the skin condition parameters. This allows the cosmetic method to provide targeted treatment for the actual skin condition of different users or different areas of the same user, avoiding the situation where the same radiofrequency energy output can only be used for different users or different skin conditions of the same user at different times. It also ensures that the radiofrequency energy output can be matched with the actual skin condition to achieve the best cosmetic effect, in contrast to situations where different skin conditions lead to insufficient or excessive radiofrequency energy. Attached Figure Description

[0035] Figure 1 A flowchart of a cosmetic method provided in an embodiment of the present invention;

[0036] Figure 2 This is a flowchart for determining the thickness of collagen based on echoes, provided as an embodiment of the present invention. Detailed Implementation

[0037] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, inside, outside, top, bottom, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0039] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, the component may be directly on the other component or there may be an intervening component present. When a component is referred to as "connected to" another component, it may be directly connected to the other component or there may be an intervening component present.

[0040] Please see Figure 1 An embodiment of the present invention provides a cosmetic method applied to a radiofrequency device, the cosmetic method comprising:

[0041] Step S11: Emit ultrasound waves to the skin of the target area;

[0042] Step S13: Receive the echoes reflected from different skin tissues when the ultrasound penetrates the skin, and determine the skin condition parameters of the target area based on the echoes.

[0043] The radiofrequency (RF) device emits ultrasound waves towards the target skin area. Because different skin tissues have different acoustic impedances, the reflectivity of the echoes generated when these ultrasound waves reach different skin tissues varies. The skin condition parameters of the target area are then determined based on the reflectivity of the echoes. Here, the target area refers to the area where the RF device is used for cosmetic treatment, typically any part of the face. Skin condition parameters are characteristic parameters that characterize the skin condition at the target area, such as collagen thickness.

[0044] Step S15: Determine the target treatment strategy that matches the skin condition parameters of the target area, and adjust the output radiofrequency energy according to the target treatment strategy.

[0045] Treatment strategies refer to control strategies used to control the magnitude of radiofrequency energy output by a radiofrequency device, or to control the trend of change in the radiofrequency energy output by the device. Multiple treatment strategies are included, each corresponding to skin condition parameters. A target treatment strategy is the one selected from these strategies that matches the skin condition parameters of the target area.

[0046] The cosmetic method in this embodiment first determines the skin condition parameters of the target area, and then determines the corresponding target treatment strategy based on the skin condition parameters and adjusts the output radio frequency energy. This allows the cosmetic method to formulate different treatment strategies for different users or different areas of the same user's skin, so that the cosmetic method can achieve the best cosmetic effect.

[0047] In some embodiments, step S13 involves receiving echoes reflected from different skin tissues when ultrasound penetrates the skin, and determining skin state parameters of the target area based on the echoes, including:

[0048] When ultrasound waves penetrate the skin, they come into contact with the echoes reflected from the epidermis and dermis respectively.

[0049] The epidermis and dermis have different acoustic impedances, so when ultrasound waves come into contact with the epidermis and dermis, they will form echoes with different reflectivities.

[0050] The thickness of collagen is determined by the echo.

[0051] Skin condition parameters include the thickness of collagen. Collagen is mainly found in the dermis and plays a supporting, protective, and repairing role in the skin. Therefore, the thickness of collagen can be used to judge the condition of the skin.

[0052] In some embodiments, please refer to Figure 2 The thickness of collagen is determined based on the echo, including:

[0053] Step S21: Based on the echo formed by the reflection of the ultrasound waves upon contact with the epidermal layer, obtain the first time T1 after the ultrasound waves are emitted, reflected, and received from the surface of the collagen.

[0054] Step S23: Based on the echo formed by the reflection of the ultrasound waves when they come into contact with the dermis, obtain the second time T2 from the emission of the ultrasound waves to their reflection and reception after passing through the collagen.

[0055] Step S25: Determine the thickness of the collagen based on the difference between the first time T1 and the second time T2 and the propagation speed S of the ultrasound in the collagen.

[0056] Since the dermis is located below the epidermis, subtracting T1 from T2 gives the time it takes for ultrasound to travel within the collagen. Multiplying this time by the speed of ultrasound propagation in the collagen, S, gives the thickness of the collagen, i.e., collagen thickness = (T2 - T1) * S.

[0057] In some embodiments, step S15, determining a target treatment strategy that matches the skin condition parameters of the target site, includes:

[0058] Using the skin condition parameters of the target area as an index, the system searches within a pre-defined beauty treatment plan library and selects the matching target treatment strategy from multiple treatment strategies stored in the library.

[0059] The beauty treatment plan library can pre-store multiple treatment strategies, and each treatment strategy can correspond to a specific value or range of collagen thickness. Using the measured collagen thickness of the target area as an index, the library searches for treatment strategies that correspond to the measured collagen thickness of the target area, and the found treatment strategy is used as the target treatment strategy that matches the target area.

[0060] In some embodiments, before transmitting ultrasonic waves to the target area, the method further includes:

[0061] Detect the current location and identify the target part corresponding to the current location;

[0062] Output the initial radio frequency energy corresponding to the target location.

[0063] Taking facial beauty treatments using radiofrequency devices as an example, target areas include multiple areas such as the cheeks, forehead, eye area, and lip area. Each target area can correspond to an initial radiofrequency energy. During the beauty process, the target area corresponding to the current location of the radiofrequency device is first identified, and then the initial radiofrequency energy corresponding to that target area is output. Then, the thickness of collagen in that target area is measured by ultrasound. A target treatment strategy corresponding to the thickness of collagen in that target area is selected from the beauty treatment plan library, and the initial radiofrequency energy is adjusted according to the target treatment strategy.

[0064] In some embodiments, outputting radiofrequency energy according to a targeted treatment strategy includes:

[0065] According to the target treatment strategy, the initial radiofrequency energy is adjusted so that the output radiofrequency energy is adapted to the skin condition parameters of the target area.

[0066] In this embodiment, the initial radio frequency energy is adjusted to increase or decrease according to a certain trend, so that the output radio frequency energy is adapted to the radio frequency energy required by the target part.

[0067] In other embodiments, adjustment may also refer to outputting different radiofrequency energies at different time periods according to the target treatment strategy, that is, outputting different radiofrequency energies at different time periods under the same treatment strategy; or, adjustment may also refer to outputting different radiofrequency energies by selecting different treatment strategies.

[0068] In some embodiments, a mask composed of connected blocks of different colors is applied to the skin. The system detects the current location and identifies the target area corresponding to that location, including:

[0069] The color sensor detects the color at the current location, and based on the correspondence between different colors on the mask and facial features, the target area corresponding to the current location is determined.

[0070] When a face mask is applied to the face, each color block on the mask corresponds to a target area on the face. By using a color sensor to identify the color at the current location, the specific color block on the mask corresponding to that location can be determined. Since each color block corresponds to a target area, identifying the color block at the current location also means identifying the target area at that location.

[0071] Understandably, each color block of the face mask can include one color or multiple colors, as long as all the color blocks of the face mask are different.

[0072] In other embodiments, users may also identify the target part corresponding to the current location based on experience or intuition.

[0073] In some embodiments, the cosmetic treatment library includes multiple sub-libraries, each corresponding to a target area, and each sub-library contains multiple treatment strategies corresponding to that target area. Selecting a matching target treatment strategy from the multiple treatment strategies stored in the cosmetic treatment library includes:

[0074] Using the skin condition parameters of the target area as an index, the system searches within the beauty treatment plan library and the corresponding sub-library of the target area, selecting the target treatment strategy that matches the skin condition parameters of the target area from the various treatment strategies stored in the sub-library.

[0075] When the radiofrequency energy corresponding to the treatment strategies in different sub-libraries is the same, the thickness of the collagen corresponding to the treatment strategies may be the same or different. That is, the determination of the target treatment strategy is not only related to the thickness of the collagen, but also to the target site. Therefore, before selecting the target treatment strategy, the target site corresponding to the current location should be determined first.

[0076] In some embodiments, the cosmetic method further includes:

[0077] Once the target area has been diagnosed and treated, a prompt message is issued, and the system returns to the current detection location to identify the target area corresponding to the current location.

[0078] By issuing voice or light prompts, users can clearly know that the target area corresponding to their current location has been treated, thus reminding them to proceed to the next target area. Users don't need to consciously monitor treatment time, making it convenient. When a user completes treatment on one target area and moves to the next, the radiofrequency device repeats the aforementioned treatment steps for that target area.

[0079] In some embodiments, the cosmetic method further includes:

[0080] Detect the current temperature of the skin at the target area;

[0081] When the current temperature of the skin at the target site is higher than the preset temperature, the following protection strategies are implemented: stop outputting radio frequency energy, reduce the output radio frequency energy, or issue an alarm message.

[0082] Radio frequency (RF) devices can detect the current temperature of the skin at the target site in real time through methods such as infrared thermometry. When the current temperature is higher than the preset temperature, a protection strategy is automatically implemented to prevent skin burns during use and improve safety performance.

[0083] In another aspect, this invention provides a radio frequency (RF) device using the above-described cosmetic method, comprising an RF unit, a transmitter, a receiver, and a controller. The RF unit generates RF energy, the transmitter emits ultrasound waves to the skin of a target area, the receiver receives echoes reflected from different skin tissues as the ultrasound waves penetrate the skin, and the controller determines skin state parameters of the target area based on the echoes and determines a target treatment strategy based on the skin state parameters, thereby controlling the RF unit to adjust the output RF energy according to the target treatment strategy.

[0084] The radiofrequency device in this embodiment can first measure the skin condition parameters of the target area, and then determine the target treatment strategy based on the skin condition parameters. This allows the radiofrequency device to formulate different treatment strategies for different users or different areas of the same user's skin in order to achieve the best cosmetic effect.

[0085] The radiofrequency device also includes a memory containing a beauty solution library with multiple preset treatment strategies. After the controller determines the skin condition parameters of the target area, it searches the beauty solution library using the skin condition parameters as an index, thereby selecting the matching target treatment strategy from the multiple treatment strategies in the beauty solution library.

[0086] In some embodiments, the radio frequency device also includes a color sensor, which can identify the target area corresponding to the current position by recognizing the color of the mask.

[0087] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A cosmetic method applied to a radiofrequency device, characterized in that, The radio frequency device includes a color sensor, and a mask composed of connected blocks of different colors is applied to the skin surface. The beauty method includes: The color at the current location is detected by a color sensor, and the target area corresponding to the current location is determined based on the correspondence between different colors on the mask and facial features. Output the initial radio frequency energy corresponding to the target location; Emitting ultrasound waves to the skin at the target location; The echoes reflected from different skin tissues when the ultrasound penetrates the skin are received, and the skin condition parameters of the target area are determined based on the echoes. A target treatment strategy matching the skin condition parameters of the target site is determined, and the output radiofrequency energy is adjusted according to the target treatment strategy.

2. The cosmetic method according to claim 1, characterized in that, The process of receiving echoes reflected from different skin tissues when the ultrasonic waves penetrate the skin, and determining skin condition parameters of the target area based on these echoes, includes: When the ultrasonic wave penetrates the skin, it comes into contact with the echoes reflected from the epidermis and dermis respectively. The thickness of the collagen is determined based on the echo.

3. The cosmetic method according to claim 2, characterized in that, The step of determining the thickness of collagen based on the echo includes: Based on the echo formed by the ultrasonic wave reflecting off the epidermal layer, the first time T1 after the ultrasonic wave is emitted, reflected off the surface of the collagen, and received is obtained; Based on the echo formed by the ultrasonic wave reflecting off the dermis, the second time T2 from the emission of the ultrasonic wave to its reflection and reception after passing through the collagen is obtained; The thickness of the collagen is determined based on the difference between the first time T1 and the second time T2, and the propagation speed S of the ultrasound in the collagen.

4. The cosmetic method according to claim 1, characterized in that, The determination of the target treatment strategy that matches the skin condition parameters of the target site includes: Using the skin condition parameters of the target area as an index, a search is performed in a preset beauty solution library, and a matching target treatment strategy is selected from multiple treatment strategies stored in the beauty solution library.

5. The cosmetic method according to claim 1, characterized in that, The adjustment of the output radiofrequency energy according to the target treatment strategy includes: According to the target treatment strategy, the magnitude of the initial radiofrequency energy is adjusted so that the magnitude of the output radiofrequency energy is adapted to the skin condition parameters of the target site.

6. The cosmetic method according to claim 1, characterized in that, Also includes: When it is determined that the target area has been treated, a prompt message is issued, and the system returns to the current detection location to identify the target area corresponding to the current location.

7. The cosmetic method according to any one of claims 1 to 6, characterized in that, Also includes: Detect the current temperature of the skin at the target site; When the current temperature of the skin at the target site is higher than the preset temperature, the following protection strategy is executed: stop outputting radio frequency energy, reduce the output of radio frequency energy, or issue an alarm message.

8. A radio frequency instrument, characterized in that, include: Radio frequency unit, used to generate radio frequency energy; A transmitter used to emit ultrasonic waves onto the skin of a target area; A receiver is used to receive the echoes formed after the ultrasonic waves penetrate the skin and come into contact with different skin tissues; A controller for performing the cosmetic method as described in any one of claims 1-7.

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