Double-frequency ultrasonic therapeutic apparatus

Abstract

The utility model discloses a double-frequency ultrasonic therapeutic apparatus, which belongs to the technical field of ultrasonic therapy and comprises a casing and a control module, a closed accommodating cavity filled with liquid is arranged in the casing, and a driving device and an ultrasonic transducer are mounted in the accommodating cavity. The driving device is connected with the ultrasonic transducer and used for driving the ultrasonic transducer to reciprocate in the vertical direction. The control module is connected with the ultrasonic transducer and used for controlling the ultrasonic transducer to alternately emit two kinds of ultrasonic waves with different frequencies. The double-frequency ultrasonic therapeutic apparatus can stimulate skin tissues with different depths, meets the treatment requirements, and is convenient for users to use at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic therapy, and particularly relates to a dual-frequency ultrasonic therapeutic apparatus. Background Art

[0002] When the existing ultrasonic therapeutic apparatus works each time, it generally can only emit one kind of ultrasonic wave with a fixed frequency. When different frequencies of ultrasonic waves are needed, it is often necessary to manually turn the frequency adjustment button. However, in some treatment items, it is required to use ultrasonic waves with different frequencies to alternately stimulate skin tissues at different depths. If the existing ultrasonic therapeutic apparatus is used and the ultrasonic wave frequency is frequently changed in a manual adjustment manner, not only is it extremely easy to damage the physical structure of the ultrasonic therapeutic apparatus, but also the operation is complex and not convenient for users to use.

[0003] Therefore, the existing technology needs to be improved and developed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a dual-frequency ultrasonic therapeutic apparatus, which can stimulate skin tissues at different depths, meet the treatment requirements and is convenient for users to use.

[0005] The utility model provides a dual-frequency ultrasonic therapeutic apparatus, which comprises a machine shell. A sealed and liquid-filled accommodation cavity is arranged inside the machine shell. A driving device and an ultrasonic transducer are installed in the accommodation cavity. The driving device is connected with the ultrasonic transducer and is used for driving the ultrasonic transducer to reciprocate in the up-and-down direction.

[0006] The dual-frequency ultrasonic therapeutic apparatus further comprises a control module, which is connected with the ultrasonic transducer and is used for controlling the ultrasonic transducer to alternately emit two kinds of ultrasonic waves with different frequencies.

[0007] The dual-frequency ultrasonic therapeutic apparatus provided by the utility model combines the position of the ultrasonic transducer and the frequency of the ultrasonic wave to realize the change of the stimulation depth of the ultrasonic wave, so as to achieve the effect of stimulating skin tissues at different depths without manual adjustment, which greatly facilitates the use of users.

[0008] Further, the control module comprises an oscillation signal control circuit and a soft switch circuit. The oscillation signal control circuit is electrically connected with the soft switch circuit and is used for controlling the output of the oscillation signal. One period of the oscillation signal comprises two frequency signals with different frequencies. The soft switch circuit is connected with the ultrasonic transducer and is used for alternately outputting the two frequency signals so that the ultrasonic transducer alternately emits two kinds of ultrasonic waves with different frequencies.

[0009] The traditional manual adjustment method is replaced by an oscillation signal control circuit and a soft-switching circuit, which not only reduces the usage difficulty and is user-friendly, but also effectively reduces the risk of equipment damage and is conducive to extending the service life of the equipment.

[0010] Further, the oscillation signal control circuit includes a fifteenth resistor, a seventh resistor, a second oscillator, an eleventh capacitor and a twelfth capacitor, as well as a twenty-eighth resistor, a twenty-fifth resistor, a fourth driver and a seventeenth capacitor, and a twenty-third resistor, a twenty-fourth resistor, a twenty-sixth resistor, a sixth MOS transistor and a first inductor;

[0011] Among them, the first end of the fifteenth resistor is externally connected to a power supply and the second end is connected to the SDI pin of the second oscillator; the first end of the seventh resistor is externally connected to a power supply and the second end is connected to the SCK pin of the second oscillator; both the SDI pin and the SCK pin of the second oscillator are externally connected to a single-chip microcomputer; the GND pin of the second oscillator is grounded; the pin is grounded; the V+ pin and the OE pin of the second oscillator are simultaneously connected to the first end of the eleventh capacitor and the first end of the twelfth capacitor, and the second ends of the eleventh capacitor and the twelfth capacitor are both grounded;

[0012] The first end of the twenty-eighth resistor is connected to the CLK pin of the second oscillator and the second end is connected to the INA pin of the fourth driver; the first end of the twenty-fifth resistor is connected to the CLK pin of the second oscillator and the second end is connected to the INB pin of the fourth driver; the GND pin of the fourth driver is grounded; the VCC pin of the fourth driver is connected to the first end of the seventeenth capacitor, and the second end of the seventeenth capacitor is grounded;

[0013] The first end of the twenty-third resistor is connected to the OUTA pin of the fourth driver and the second end is connected to the gate G of the sixth MOS transistor; the first end of the twenty-fourth resistor is connected to the gate of the sixth MOS transistor and the second end is grounded; all source S of the sixth MOS transistor are connected to the second end of the twenty-sixth resistor, and the first end of the twenty-sixth resistor is grounded; all drain D of the sixth MOS transistor are connected to the second end of the first inductor, and the first end of the first inductor is externally connected to a power supply.

[0014] Further, the oscillation signal control circuit further includes a twenty-seventh resistor, a first power switch, a fortieth resistor, a forty-first resistor and a third NMOS transistor;

[0015] Among them, the first end of the twenty-seventh resistor is externally connected to the MCU, and the second end is connected to the first pin of the first power switch. The second and third pins of the first power switch are both grounded. The fourth pin of the first power switch is connected to the second end of the fortieth resistor, and the first end of the fortieth resistor is externally connected to a power supply; the first end of the forty-first resistor is connected to the second end of the fortieth resistor, and the second end is connected to the gate G of the third NMOS transistor. The source S of the third NMOS transistor is externally connected to a power supply, and the drain D of the third NMOS transistor is connected to the first end of the seventeenth capacitor.

[0016] The first power switch serves as the power switch of the fourth driver to control the transmission and interruption of two frequency signals. The overall structure is simple, the control is convenient, and the reliability is high.

[0017] Further, the soft-switching circuit includes a twenty-first logic chip, a twenty-eighth capacitor, a twenty-ninth resistor, a thirtieth resistor, a seventh driver, a twenty-ninth capacitor, a thirty-first resistor, a thirty-second resistor, an eighth MOS transistor, a ninth MOS transistor, a second inductor, a third inductor, an eighteenth capacitor, a nineteenth capacitor, and a socket;

[0018] Among them, the 1A pin, 1B pin, 2A pin, and 2B pin of the twenty-first logic chip are all externally connected to the single-chip microcomputer; the GND pin of the twenty-first logic chip is grounded; the VCC pin of the twenty-first logic chip is externally connected to a power supply and is connected to the first end of the twenty-eighth capacitor, and the second end of the twenty-eighth capacitor is grounded;

[0019] The first end of the twenty-ninth resistor is connected to the 1Y pin of the twenty-first logic chip, and the second end is connected to the INA pin of the seventh driver; the first end of the thirtieth resistor is connected to the 2Y pin of the twenty-first logic chip, and the second end is connected to the INB pin of the seventh driver; the GND pin of the seventh driver is grounded; the VCC pin of the seventh driver is externally connected to a power supply and is connected to the first end of the twenty-ninth capacitor, and the second end of the twenty-ninth capacitor is grounded;

[0020] The first end of the thirty-first resistor is connected to the OUTA pin of the seventh driver, and the second end is connected to the gate G of the eighth MOS transistor; all the source S of the eighth MOS transistor are connected to the source S of the sixth MOS transistor; all the drain D of the eighth MOS transistor are connected to the first end of the second inductor, the second end of the second inductor is connected to the first end of the eighteenth capacitor, and the second end of the eighteenth capacitor is connected to the second pin of the socket;

[0021] The first end of the thirty-second resistor is connected to the OUTB pin of the seventh driver, and the second end is connected to the gate G of the ninth MOS transistor; all the source S of the ninth MOS transistor are connected to the source S of the sixth MOS transistor; all the drain D of the ninth MOS transistor are connected to the first end of the third inductor, the second end of the third inductor is connected to the first end of the nineteenth capacitor, and the second end of the nineteenth capacitor is connected to the second pin of the socket; the first pin of the socket is grounded.

[0022] Further, the driving device includes a first slide rail extending in the up and down direction and a first driving motor. The ultrasonic transducer is slidably arranged on the first slide rail and can reciprocate in the front and back directions under the drive of the first driving motor.

[0023] The slide rail has a simple structure and high reliability. Under the drive of the first driving motor, the ultrasonic transducer can change its up and down position more smoothly.

[0024] Further, the driving device is also used to drive the ultrasonic transducer to reciprocate in the front and back directions;

[0025] The driving device further includes a second slide rail extending in the front and back direction and a second driving motor. The second slide rail is slidably arranged on the first slide rail and can reciprocate in the up and down direction under the drive of the first driving motor; the ultrasonic transducer is slidably arranged on the second slide rail and can reciprocate in the front and back directions under the drive of the second driving motor.

[0026] Further, the first slide rail includes three first shaft rods, and the three first shaft rods are parallel to each other in the up and down direction and are distributed in a triangle. The second slide rail is slidably arranged on the three first shaft rods.

[0027] Further, the second slide rail includes three second shaft rods, and the three second shaft rods are parallel to each other in the front and back direction and are distributed in a triangle. The ultrasonic transducer is slidably arranged on the three second shaft rods.

[0028] Further, the ultrasonic transducer is a tile-type ultrasonic transducer.

[0029] As can be seen from the above, the dual-frequency ultrasonic therapy instrument of the present invention changes the up and down position of the ultrasonic transducer through the driving device and cooperates with the control module to alternately excite two different frequencies of ultrasonic waves, so as to achieve the effect of making the ultrasonic waves stimulate skin tissues at different depths, thereby meeting the treatment requirements of certain treatment items and greatly reducing the use difficulty of the ultrasonic therapy instrument, which is convenient for users to use.

[0030] Other features and advantages of the present utility model will be described in the subsequent description, and in part, will be obvious from the description, or can be understood by implementing the embodiments of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained by the structures specifically pointed out in the written description and the accompanying drawings. Description of the Drawings

[0031] Figure 1 It is a cross-sectional view of a dual-frequency ultrasonic therapeutic apparatus provided by an embodiment of the present utility model from one perspective.

[0032] Figure 2 It is a cross-sectional view of a dual-frequency ultrasonic therapeutic apparatus provided by an embodiment of the present utility model from another perspective.

[0033] Figure 3 It is a schematic structural diagram of a control module in an embodiment of the present utility model.

[0034] Figure 4 It is a circuit diagram of the first part of an oscillation signal control circuit in an embodiment of the present utility model.

[0035] Figure 5 It is a circuit diagram of the second part of an oscillation signal control circuit in an embodiment of the present utility model.

[0036] Figure 6 It is a circuit diagram of the third part of an oscillation signal control circuit in an embodiment of the present utility model.

[0037] Figure 7 It is a circuit diagram of the first part of a soft-switching circuit in an embodiment of the present utility model.

[0038] Figure 8 It is a circuit diagram of the second part of a soft-switching circuit in an embodiment of the present utility model.

[0039] Figure 9 It is a circuit diagram of the third part of a soft-switching circuit in an embodiment of the present utility model.

[0040] Label Description:

[0041] 100, housing; 110, accommodating cavity; 200, driving device; 210, first slide rail; 220, first driving motor; 230, second slide rail; 240, second driving motor; 300, ultrasonic transducer; 410, oscillation signal control circuit; 420, soft switch circuit; R15, fifteenth resistor; R7, seventh resistor; U2, second oscillator; C11, eleventh capacitor; C12, twelfth capacitor; R28, twenty-eighth resistor; R25, twenty-fifth resistor; U4, fourth driver; C17, seventeenth capacitor; R23, twenty-third resistor; R24, twenty-fourth resistor; R26, twenty-sixth resistor; U6, sixth MOS transistor; L1, first inductor; R27, twenty-seventh resistor; Q1, first power switch; R40, fortieth resistor; R41, forty-first resistor; Q3, third NMOS transistor; U21, twenty-first logic chip; C28, twenty-eighth capacitor; R29, twenty-ninth resistor; R30, thirtieth resistor; U7, seventh driver; C29, twenty-ninth capacitor; R31, thirty-first resistor; R32, thirty-second resistor; U8, eighth MOS transistor; U9, ninth MOS transistor; L2, second inductor; L3, third inductor; C18, eighteenth capacitor; C19, nineteenth capacitor; T1, socket. Detailed implementation manners

[0042] The following is a detailed description of the implementation manners of the present utility model. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0044] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0046] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0047] It should be noted that the "up-down direction" and "front-back direction" hereinafter refer to the arrows marked in the appended Figure 1 and the appended Figure 2 For reference; in addition, the gates of the sixth MOS transistor U6, the third NMOS transistor Q3, the eighth MOS transistor U8, and the ninth MOS transistor U9 hereinafter are all represented by the symbol G, the sources are all represented by the symbol S, and the drains are all represented by the symbol D (the symbols of the gates, sources, and drains are all well-known common knowledge in the art and will not be elaborated herein).

[0048] Refer to the appended Figure 1 、the appended Figure 2 and the appended Figure 3, the present utility model provides a dual-frequency ultrasonic therapeutic apparatus, which includes a casing 100. Inside the casing 100, there is a sealed liquid-filled accommodation cavity 110. A driving device 200 and an ultrasonic transducer 300 are installed in the accommodation cavity 110. The driving device 200 is connected to the ultrasonic transducer 300 and is used to drive the ultrasonic transducer 300 to reciprocate in the up and down direction;

[0049] The dual-frequency ultrasonic therapeutic apparatus further includes a control module. The control module is connected to the ultrasonic transducer 300 and is used to control the ultrasonic transducer 300 to alternately emit two kinds of ultrasonic waves with different frequencies.

[0050] In this embodiment, during actual application, the user controls the up and down position of the ultrasonic transducer 300 through the driving device 200, so as to change the depth of the ultrasonic wave acting on the skin tissue. Then, the control module alternately emits two kinds of ultrasonic waves with different frequencies, thereby stimulating the skin tissue at different depths to achieve the required treatment purpose. Compared with the traditional manual adjustment method, the use difficulty of this embodiment is lower and it is more user-friendly.

[0051] In some embodiments, referring to the attached Figure 3 , the control module includes an oscillation signal control circuit 410 and a soft-switching circuit 420. The oscillation signal control circuit 410 is electrically connected to the soft-switching circuit 420 and is used to control the output of the oscillation signal. One cycle of the oscillation signal includes two frequency signals with different frequencies; the soft-switching circuit 420 is connected to the ultrasonic transducer 300 and is used to alternately output two frequency signals so that the ultrasonic transducer 300 alternately emits two kinds of ultrasonic waves with different frequencies.

[0052] In the traditional manual adjustment method, when the user turns the frequency adjustment button, the frequency adjustment button may be damaged due to insufficient force control, thus affecting the use of the ultrasonic therapeutic apparatus. However, this embodiment uses the oscillation signal control circuit 410 and the soft-switching circuit 420 to replace the traditional manual adjustment method, which not only reduces the use difficulty and is user-friendly, but also effectively reduces the risk of equipment damage and is beneficial to extending the service life of the equipment.

[0053] In some embodiments, referring to the attached Figure 4 、the attached Figure 5 and the attached Figure 6 , the oscillation signal control circuit 410 includes a fifteenth resistor R15, a seventh resistor R7, a second oscillator U2, an eleventh capacitor C11 and a twelfth capacitor C12, as well as a twenty-eighth resistor R28, a twenty-fifth resistor R25, a fourth driver U4 and a seventeenth capacitor C17, as well as a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-sixth resistor R26, a sixth MOS transistor U6 and a first inductor L1;

[0054] Among them, the first end of the fifteenth resistor R15 is externally connected to a power supply, and the second end is connected to the SDI pin of the second oscillator U2; the first end of the seventh resistor R7 is externally connected to a power supply, and the second end is connected to the SCK pin of the second oscillator U2; both the SDI pin and the SCK pin of the second oscillator U2 are externally connected to a single-chip microcomputer; the GND pin of the second oscillator U2 is grounded; the pin of the second oscillator U2 is grounded; the V + pin and the OE pin of the second oscillator U2 are simultaneously connected to the first ends of the eleventh capacitor C11 and the twelfth capacitor C12, and the second ends of the eleventh capacitor C11 and the twelfth capacitor C12 are both grounded;

[0055] The first end of the twenty-eighth resistor R28 is connected to the CLK pin of the second oscillator U2, and the second end is connected to the INA pin of the fourth driver U4; the first end of the twenty-fifth resistor R25 is connected to the CLK pin of the second oscillator U2, and the second end is connected to the INB pin of the fourth driver U4; the GND pin of the fourth driver U4 is grounded; the VCC pin of the fourth driver U4 is connected to the first end of the seventeenth capacitor C17, and the second end of the seventeenth capacitor C17 is grounded;

[0056] The first end of the twenty-third resistor R23 is connected to the OUTA pin of the fourth driver U4, and the second end is connected to the gate G of the sixth MOS transistor U6; the first end of the twenty-fourth resistor R24 is connected to the gate of the sixth MOS transistor U6, and the second end is grounded; all the source S of the sixth MOS transistor U6 are connected to the second end of the twenty-sixth resistor R26, and the first end of the twenty-sixth resistor R26 is grounded; all the drain D of the sixth MOS transistor U6 are connected to the second end of the first inductor L1, and the first end of the first inductor L1 is externally connected to a power supply.

[0057] In this embodiment, the single-chip microcomputer controls the SDI signal and the SCK signal input to the second oscillator U2. After being processed by the second oscillator U2, a frequency square wave (i.e., the CLK signal) is output. The CLK signal is sent to the sixth MOS transistor U6 through the fourth driver U4, and finally, two frequency signals are output under the control of the sixth MOS transistor U6.

[0058] In some embodiments, referring to the attached Figure 5 , the oscillation signal control circuit 410 further includes a twenty-seventh resistor R27, a first power switch Q1, a fortieth resistor R40, a forty-first resistor R41, and a third NMOS transistor Q3;

[0059] Among them, the first end of the twenty-seventh resistor R27 is externally connected to the MCU, and the second end is connected to the first pin of the first power switch Q1. The second pin and the third pin of the first power switch Q1 are both grounded. The fourth pin of the first power switch Q1 is connected to the second end of the fortieth resistor R40, and the first end of the fortieth resistor R40 is externally connected to a power supply; the first end of the forty-first resistor R41 is connected to the second end of the fortieth resistor R40, and the second end is connected to the gate G of the third NMOS transistor Q3. The source S of the third NMOS transistor Q3 is externally connected to a power supply, and the drain D of the third NMOS transistor Q3 is connected to the first end of the seventeenth capacitor C17.

[0060] In this embodiment, the first power switch Q1 serves as the power switch of the fourth driver U4 to realize the control of the transmission and interruption of two frequency signals. The overall structure is simple, the control is convenient, and the reliability is high.

[0061] In some embodiments, refer to Att Figure 7 、Att Figure 8 and Att Figure 9 As shown in, the soft-switching circuit 420 includes a twenty-first logic chip U21, a twenty-eighth capacitor C28, a twenty-ninth resistor R29, a thirtieth resistor R30, a seventh driver U7, a twenty-ninth capacitor C29, a thirty-first resistor R31, a thirty-second resistor R32, an eighth MOS transistor U8, a ninth MOS transistor U9, a second inductor L2, a third inductor L3, an eighteenth capacitor C18, a nineteenth capacitor C19, and a socket T1;

[0062] Among them, the 1A pin, 1B pin, 2A pin, and 2B pin of the twenty-first logic chip U21 are all externally connected to the single-chip microcomputer; the GND pin of the twenty-first logic chip U21 is grounded; the VCC pin of the twenty-first logic chip U21 is externally connected to a power supply and is connected to the first end of the twenty-eighth capacitor C28, and the second end of the twenty-eighth capacitor C28 is grounded;

[0063] The first end of the twenty-ninth resistor R29 is connected to the 1Y pin of the twenty-first logic chip U21, and the second end is connected to the INA pin of the seventh driver U7; the first end of the thirtieth resistor R30 is connected to the 2Y pin of the twenty-first logic chip U21, and the second end is connected to the INB pin of the seventh driver U7; the GND pin of the seventh driver U7 is grounded; the VCC pin of the seventh driver U7 is externally connected to a power supply and is connected to the first end of the twenty-ninth capacitor C29, and the second end of the twenty-ninth capacitor C29 is grounded;

[0064] The first end of the thirty-first resistor R31 is connected to the OUTA pin of the seventh driver U7, and the second end is connected to the gate G of the eighth MOS transistor U8; all the source S of the eighth MOS transistor U8 are connected to the source S of the sixth MOS transistor U6; all the drain D of the eighth MOS transistor U8 are connected to the first end of the second inductor L2, the second end of the second inductor L2 is connected to the first end of the eighteenth capacitor C18, and the second end of the eighteenth capacitor C18 is connected to the second pin of the socket T1;

[0065] The first end of the thirty-second resistor R32 is connected to the OUTB pin of the seventh driver U7, and the second end is connected to the gate G of the ninth MOS transistor U9; all the source S of the ninth MOS transistor U9 are connected to the source S of the sixth MOS transistor U6; all the drain D of the ninth MOS transistor U9 are connected to the first end of the third inductor L3, the second end of the third inductor L3 is connected to the first end of the nineteenth capacitor C19, and the second end of the nineteenth capacitor C19 is connected to the second pin of the socket T1; the first pin of the socket T1 is grounded.

[0066] In this embodiment, the single-chip microcomputer controls the CA1 signal and the CA2 signal input to the twenty-first logic chip U21. After being processed by the twenty-first logic chip U21, the high-level OA1 signal and the low-level OA2 signal are input to the seventh driver U7 and respectively control the eighth MOS transistor U8 and the ninth MOS transistor U9. Finally, only one of the eighth MOS transistor U8 and the ninth MOS transistor U9 can be turned on at the same time. Thus, after receiving the oscillation signal, two frequency signals are alternately output, and then the ultrasonic transducer 300 emits two different frequencies of ultrasonic waves.

[0067] In some embodiments, referring to Appendix Figure 1 and Appendix Figure 2 , the driving device 200 includes a first slide rail 210 extending in the up and down direction and a first driving motor 220. The ultrasonic transducer 300 is slidably arranged on the first slide rail 210 and can reciprocally move in the front and back directions under the drive of the first driving motor 220. The slide rail structure is simple and has high reliability. Under the drive of the first driving motor 220, the ultrasonic transducer 300 can change its up and down position more smoothly.

[0068] In some embodiments, referring to Appendix Figure 1 and Appendix Figure 2 , the driving device 200 is also used to drive the ultrasonic transducer 300 to reciprocally move in the front and back directions;

[0069] The driving device 200 further includes a second slide rail 230 extending in the front-rear direction and a second driving motor 240. The second slide rail 230 is slidably disposed on the first slide rail 210 and can reciprocate in the up-down direction under the drive of the first driving motor 220; the ultrasonic transducer 300 is slidably disposed on the second slide rail 230 and can reciprocate in the front-rear direction under the drive of the second driving motor 240.

[0070] In this embodiment, in actual application, the user can control the second driving motor 240 to drive the ultrasonic transducer 300 to reciprocate in the front-rear direction, so that the ultrasonic wave acts on a certain area of skin tissue once in a scanning manner. When the area of the skin tissue to be treated is relatively large, the improvement of the ultrasonic wave action range can improve the treatment efficiency, thereby facilitating the shortening of the entire treatment cycle.

[0071] In some embodiments, refer to Appendix Figure 1 and Appendix Figure 2 , the first slide rail 210 includes three first shafts. The three first shafts are parallel to each other in the up-down direction and are distributed in a triangular shape. The second slide rail 230 is slidably disposed on the three first shafts.

[0072] In some embodiments, refer to Appendix Figure 1 and Appendix Figure 2 , the second slide rail 230 includes three second shafts. The three second shafts are parallel to each other in the front-rear direction and are distributed in a triangular shape. The ultrasonic transducer 300 is slidably disposed on the three second shafts.

[0073] In the above embodiment, the triangular distribution of the three shafts (including the first shaft and the second shaft) can effectively improve the stability of the second slide rail 230 and the ultrasonic transducer 300 during sliding, thereby facilitating the precise control of the stimulation depth of the ultrasonic wave on the skin tissue.

[0074] In some embodiments, the ultrasonic transducer 300 is a tile-type ultrasonic transducer. The focal zone of the tile-type ultrasonic transducer is a straight line. Compared with the traditional ultrasonic transducer with a focal point as a point, the tile-type ultrasonic transducer has higher efficiency. Combined with the front-back movement of the ultrasonic transducer 300, the action range of the ultrasonic wave is greatly improved, which is beneficial to achieving a faster and more efficient treatment effect.

[0075] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0076] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the creative concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A dual-frequency ultrasonic therapeutic apparatus, comprising a machine housing (100), wherein a sealed liquid-filled accommodation cavity (110) is provided inside the machine housing (100), and is characterized in that, A driving device (200) and an ultrasonic transducer (300) are installed in the accommodation cavity (110). The driving device (200) is connected to the ultrasonic transducer (300) and is used to drive the ultrasonic transducer (300) to reciprocate in the up and down direction; The dual-frequency ultrasonic therapeutic apparatus further includes a control module. The control module is connected to the ultrasonic transducer (300) and is used to control the ultrasonic transducer (300) to alternately emit two kinds of ultrasonic waves with different frequencies.

2. The dual-frequency ultrasonic therapeutic apparatus according to claim 1, wherein, The control module includes an oscillation signal control circuit (410) and a soft-switching circuit (420). The oscillation signal control circuit (410) is electrically connected to the soft-switching circuit (420) and is used to control the output of the oscillation signal. One period of the oscillation signal includes two frequency signals with different frequencies; the soft-switching circuit (420) is connected to the ultrasonic transducer (300) and is used to alternately output the two frequency signals so that the ultrasonic transducer (300) alternately emits two kinds of ultrasonic waves with different frequencies.

3. The dual-frequency ultrasonic therapeutic apparatus according to claim 2, wherein, The oscillation signal control circuit (410) includes a fifteenth resistor R15, a seventh resistor R7, a second oscillator U2, an eleventh capacitor C11 and a twelfth capacitor C12, and a twenty-eighth resistor R28, a twenty-fifth resistor R25, a fourth driver U4 and a seventeenth capacitor C17, and a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-sixth resistor R26, a sixth MOS transistor U6 and a first inductor L1; Among them, the first end of the fifteenth resistor R15 is externally connected to a power supply, and the second end is connected to the SDI pin of the second oscillator U2; the first end of the seventh resistor R7 is externally connected to a power supply, and the second end is connected to the SCK pin of the second oscillator U2; both the SDI pin of the second oscillator U2 and the SCK pin of the second oscillator U2 are externally connected to a single-chip microcomputer; the GND pin of the second oscillator U2 is grounded; the pin is grounded; the V+ pin and the OE pin of the second oscillator U2 are simultaneously connected to the first ends of the eleventh capacitor C11 and the twelfth capacitor C12, and the second ends of the eleventh capacitor C11 and the twelfth capacitor C12 are both grounded; The first end of the twenty-eighth resistor R28 is connected to the CLK pin of the second oscillator U2, and the second end is connected to the INA pin of the fourth driver U4; the first end of the twenty-fifth resistor R25 is connected to the CLK pin of the second oscillator U2, and the second end is connected to the INB pin of the fourth driver U4; the GND pin of the fourth driver U4 is grounded; the VCC pin of the fourth driver U4 is connected to the first end of the seventeenth capacitor C17, and the second end of the seventeenth capacitor C17 is grounded; The first end of the twenty-third resistor R23 is connected to the OUTA pin of the fourth driver U4, and the second end is connected to the gate G of the sixth MOS transistor U6; the first end of the twenty-fourth resistor R24 is connected to the gate of the sixth MOS transistor U6, and the second end is grounded; all source electrodes S of the sixth MOS transistor U6 are connected to the second end of the twenty-sixth resistor R26, and the first end of the twenty-sixth resistor R26 is grounded; all drain electrodes D of the sixth MOS transistor U6 are connected to the second end of the first inductor L1, and the first end of the first inductor L1 is externally connected to a power supply.

4. The dual-frequency ultrasonic therapeutic apparatus according to claim 3, wherein, The oscillation signal control circuit (410) further includes a twenty-seventh resistor R27, a first power switch Q1, a fortieth resistor R40, a forty-first resistor R41 and a third NMOS transistor Q3; Among them, the first end of the twenty-seventh resistor R27 is externally connected to the MCU, and the second end is connected to the first pin of the first power switch Q1. The second pin and the third pin of the first power switch Q1 are both grounded. The fourth pin of the first power switch Q1 is connected to the second end of the fortieth resistor R40, and the first end of the fortieth resistor R40 is externally connected to a power supply; the first end of the forty-first resistor R41 is connected to the second end of the fortieth resistor R40, and the second end is connected to the gate G of the third NMOS transistor Q3. The source S of the third NMOS transistor Q3 is externally connected to a power supply, and the drain D of the third NMOS transistor Q3 is connected to the first end of the seventeenth capacitor C17.

5. The dual-frequency ultrasonic therapeutic apparatus according to claim 3, wherein, The soft-switching circuit (420) includes a twenty-first logic chip U21, a twenty-eighth capacitor C28, a twenty-ninth resistor R29, a thirtieth resistor R30, a seventh driver U7, a twenty-ninth capacitor C29, a thirty-first resistor R31, a thirty-second resistor R32, an eighth MOS transistor U8, a ninth MOS transistor U9, a second inductor L2, a third inductor L3, an eighteenth capacitor C18, a nineteenth capacitor C19, and a socket T1; Among them, the 1A pin, 1B pin, 2A pin, and 2B pin of the twenty-first logic chip U21 are all externally connected to the single-chip microcomputer; the GND pin of the twenty-first logic chip U21 is grounded; the VCC pin of the twenty-first logic chip U21 is externally connected to a power supply and is connected to the first end of the twenty-eighth capacitor C28, and the second end of the twenty-eighth capacitor C28 is grounded; The first end of the twenty-ninth resistor R29 is connected to the 1Y pin of the twenty-first logic chip U21, and the second end is connected to the INA pin of the seventh driver U7; the first end of the thirtieth resistor R30 is connected to the 2Y pin of the twenty-first logic chip U21, and the second end is connected to the INB pin of the seventh driver U7; the GND pin of the seventh driver U7 is grounded; the VCC pin of the seventh driver U7 is externally connected to a power supply and is connected to the first end of the twenty-ninth capacitor C29, and the second end of the twenty-ninth capacitor C29 is grounded; The first end of the thirty-first resistor R31 is connected to the OUTA pin of the seventh driver U7, and the second end is connected to the gate G of the eighth MOS transistor U8; all the source S of the eighth MOS transistor U8 are connected to the source S of the sixth MOS transistor U6; all the drain D of the eighth MOS transistor U8 are connected to the first end of the second inductor L2, the second end of the second inductor L2 is connected to the first end of the eighteenth capacitor C18, and the second end of the eighteenth capacitor C18 is connected to the second pin of the socket T1; The first end of the thirty-second resistor R32 is connected to the OUTB pin of the seventh driver U7, and the second end is connected to the gate G of the ninth MOS transistor U9; all source terminals S of the ninth MOS transistor U9 are connected to the source terminal S of the sixth MOS transistor U6; all drain terminals D of the ninth MOS transistor U9 are connected to the first end of the third inductor L3, the second end of the third inductor L3 is connected to the first end of the nineteenth capacitor C19, and the second end of the nineteenth capacitor C19 is connected to the second pin of the socket T1; the first pin of the socket T1 is grounded.

6. The dual-frequency ultrasonic therapeutic apparatus according to claim 1, characterized in that The driving device (200) includes a first slide rail (210) extending in the up and down direction and a first driving motor (220). The ultrasonic transducer (300) is slidably disposed on the first slide rail (210) and can reciprocate in the front and back direction under the drive of the first driving motor (220).

7. The dual-frequency ultrasonic therapeutic apparatus according to claim 6, wherein, The driving device (200) is further configured to drive the ultrasonic transducer (300) to reciprocate in the front and back direction; The driving device (200) further includes a second slide rail (230) extending in the front and back direction and a second driving motor (240). The second slide rail (230) is slidably disposed on the first slide rail (210) and can reciprocate in the up and down direction under the drive of the first driving motor (220); the ultrasonic transducer (300) is slidably disposed on the second slide rail (230) and can reciprocate in the front and back direction under the drive of the second driving motor (240).

8. The dual-frequency ultrasonic therapeutic apparatus according to claim 7, wherein, The first slide rail (210) includes three first shaft rods. The three first shaft rods are parallel to each other in the up and down direction and are distributed in a triangular shape. The second slide rail (230) is slidably disposed on the three first shaft rods.

9. The dual-frequency ultrasonic therapeutic apparatus according to claim 7, wherein The second slide rail (230) includes three second shaft rods. The three second shaft rods are parallel to each other in the front and back direction and are distributed in a triangular shape. The ultrasonic transducer (300) is slidably disposed on the three second shaft rods.

10. The dual-frequency ultrasonic therapeutic apparatus according to claim 1, wherein, The ultrasonic transducer (300) is a tile-type ultrasonic transducer.

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