Therapeutic instrument control circuit and intermediate frequency laser therapeutic instrument

Abstract

The invention discloses a therapeutic instrument control circuit and an intermediate-frequency laser therapeutic instrument, and is applied to the field of medical instruments. Wherein each output channel circuit in the electrotherapy control circuit is connected with the micro-control unit and the electrotherapy device, and is used for controlling each output channel circuit to carry out combined output according to a treatment control signal output by the micro-control unit, so that the electrotherapy device outputs different types of electric treatment signals; the laser control circuit, the ultrasonic control circuit and the hot compress control circuit are respectively connected with the micro-control unit and the corresponding laser treatment device, ultrasonic treatment device and hot compress treatment device; the control unit is used for controlling the laser treatment device, the ultrasonic treatment device and the hot compress treatment device to output corresponding laser treatment signals, ultrasonic treatment signals and hot compress treatment signals according to the treatment control signals output by the micro-control unit. According to the application, four kinds of treatment can be realized, and meanwhile, in the electric treatment process, combined output can be performed on the output channel circuits, so that electric treatment in different modes can be output.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a therapeutic device control circuit and a medium-frequency laser therapeutic device. Background Art

[0002] Medium-frequency laser therapy devices integrate multiple physical therapy methods, including medium-frequency electrotherapy, laser therapy, ultrasound therapy, and hot compress therapy. Electrotherapy utilizes medium-frequency current to stimulate the body. This current can penetrate the skin and reach deep lesions, dilating blood vessels and increasing blood flow, thereby improving blood supply to tissues. Laser therapy utilizes the photochemical and biostimulatory effects of lasers to produce therapeutic effects on the body. Ultrasound therapy utilizes the mechanical, thermal, and physical and chemical effects of ultrasound to produce therapeutic effects on the body. Hot compresses dilate blood vessels and increase blood flow, thereby improving blood supply to tissues.

[0003] However, the design of electrical stimulation therapy in medium-frequency laser therapy devices only includes low-frequency electrical stimulation and medium-frequency electrical stimulation. The treatment method is relatively simple, with few output channels and the inability to combine them, thus failing to meet the requirements of patients in different situations and usage scenarios.

[0004] In view of the above technologies, finding a therapeutic device control circuit that meets the requirements of patients in different situations and usage scenarios is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a therapeutic device control circuit and a medium-frequency laser therapeutic device, which can solve the problem that the medium-frequency laser therapeutic devices in the prior art have a single treatment mode, few output channels and cannot be combined, thus failing to meet the requirements of patients in different situations and usage scenarios.

[0006] To solve the above technical problems, on the one hand, the present application provides a therapeutic device control circuit, comprising: a microcontrol unit, an electrotherapy control circuit having a plurality of output channel circuits, a laser control circuit, an ultrasonic control circuit, and a hot compress control circuit;

[0007] The input end of each output channel circuit in the electrotherapy control circuit is respectively connected to the corresponding electrotherapy pin in the microcontroller unit, and the output end of the output channel circuit is connected to the electrotherapy device, and is used to control each output channel circuit to perform combined output according to the treatment control signal output by the microcontroller unit, so that the electrotherapy device can output different types of electrotherapy signals;

[0008] The input end of the laser control circuit, the input end of the ultrasonic control circuit and the input end of the hot compress control circuit are respectively connected to the corresponding laser pin, ultrasonic pin and hot compress pin in the micro control unit, and the output end of the laser control circuit, the output end of the ultrasonic control circuit and the output end of the hot compress control circuit are respectively connected to the corresponding laser treatment device, ultrasonic treatment device and hot compress treatment device, and are used to control the laser treatment device, ultrasonic treatment device and hot compress treatment device to output corresponding laser treatment signals, ultrasonic treatment signals and hot compress treatment signals according to the treatment control signal output by the micro control unit.

[0009] Preferably, the output channel circuit includes: a dual digital-to-analog conversion circuit, a power amplifier circuit and a voltage conversion circuit;

[0010] The input end of the dual digital-to-analog conversion circuit is connected to the electrotherapy pin in the microcontroller unit as the input end of the output channel circuit, and is used to perform signal modulation according to the treatment control signal and the modulation wave output by the microcontroller unit, and perform digital-to-analog conversion on the modulated treatment control signal to obtain an analog control signal;

[0011] The input end of the power amplifier circuit is connected to the output end of the dual digital-to-analog conversion circuit, and is used to amplify the analog control signal;

[0012] The input end of the transformer circuit is connected to the output end of the power amplifier circuit, and the output end of the transformer control circuit is connected to the electrotherapy device as the output end of the output channel circuit, which is used to perform voltage conversion on the amplified analog signal so as to obtain the corresponding electrotherapy signal of the electrotherapy device.

[0013] Preferably, the dual digital-to-analog conversion circuit includes: a carrier digital-to-analog conversion circuit and a modulation digital-to-analog conversion circuit;

[0014] The input end of the carrier digital-to-analog conversion circuit is connected to the electrotherapy pin in the microcontroller unit as the input end of the dual digital-to-analog conversion circuit;

[0015] The output end of the carrier digital-to-analog conversion circuit is connected to the input end of the modulation digital-to-analog conversion circuit;

[0016] The output end of the modulation digital-to-analog conversion circuit is connected to the input end of the power amplifier circuit as the output end of the dual digital-to-analog conversion circuit.

[0017] Preferably, the carrier digital-to-analog conversion circuit includes: a first operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, and a second capacitor;

[0018] The first end of the first resistor is connected to the electrotherapy pin in the microcontroller unit as the input end of the carrier digital-to-analog conversion circuit, and the second end of the first resistor is connected to the non-inverting input end of the first operational amplifier and the first end of the second resistor;

[0019] An inverting input terminal of the first operational amplifier is connected to a first terminal of the third resistor and a first terminal of the fourth resistor;

[0020] A first pin of the first operational amplifier is connected to a first end of the first capacitor and a first preset voltage source;

[0021] The second pin of the first operational amplifier is connected to the first end of the second capacitor and the second preset voltage source;

[0022] The output end of the first operational amplifier is connected to the second end of the second resistor and the first end of the fifth resistor, and the output end of the carrier digital-to-analog conversion circuit is connected to the input end of the modulation digital-to-analog conversion circuit.

[0023] The second end of the third resistor is connected to a third preset voltage source;

[0024] The second end of the fourth resistor, the second end of the first capacitor, the second end of the second capacitor, and the second end of the fifth resistor are all grounded.

[0025] Preferably, the modulation digital-to-analog conversion circuit comprises: a digital-to-analog conversion chip and a second operational amplifier;

[0026] Wherein, the chip select pin of the digital-to-analog conversion chip is connected to the corresponding pin of the microcontroller unit;

[0027] The first reference pin of the digital-to-analog conversion chip is connected to the output end of the carrier digital-to-analog conversion circuit as the input end of the modulation digital-to-analog conversion circuit;

[0028] The first output pin of the digital-to-analog conversion chip is connected to the inverting input terminal of the second operational amplifier;

[0029] The ground pin of the digital-to-analog conversion chip is connected to the non-inverting input terminal of the second operational amplifier and is grounded;

[0030] The first feedback pin of the digital-to-analog conversion chip is connected to the output end of the second operational amplifier and the second reference pin of the digital-to-analog conversion chip;

[0031] The second output pin of the digital-to-analog conversion chip is connected to the input end of the power amplifier circuit as the output end of the modulation digital-to-analog conversion circuit.

[0032] Preferably, the power amplifier circuit is a third operational amplifier;

[0033] The inverting input terminal of the third operational amplifier is connected to the second output pin of the digital-to-analog conversion chip as the input terminal of the power amplifier circuit;

[0034] The output end of the third operational amplifier is connected to the second feedback pin of the digital-to-analog conversion chip, and together they serve as the output end of the power amplifier circuit and are connected to the input end of the voltage conversion circuit.

[0035] Preferably, the ultrasonic control circuit comprises: an output interface circuit, a half-bridge drive circuit, a transformer and a dual-transformer feedback circuit;

[0036] The two input terminals of the half-bridge driving circuit are connected to the ultrasonic pins of the microcontroller unit as an ultrasonic control circuit.

[0037] The output end of the half-bridge drive circuit is connected to the primary coil of the transformer;

[0038] The two input terminals of the double-transformer feedback circuit are connected to the secondary coil of the transformer;

[0039] The two output terminals of the dual-transformer feedback circuit are respectively connected to the two input terminals of the output interface circuit;

[0040] The output end of the output interface circuit is connected to the ultrasonic treatment device as the output end of the ultrasonic control circuit.

[0041] Preferably, the laser control circuit includes: a first transistor, a second transistor, a sixth resistor, a seventh resistor, an eighth resistor, a first bidirectional breakdown diode and a laser socket;

[0042] Wherein, the first end of the sixth resistor is connected to the laser pin of the micro control unit as the input end of the laser control circuit;

[0043] The second end of the sixth resistor is connected to the first end of the seventh resistor, the base of the first transistor and the collector of the second transistor;

[0044] The emitter of the first transistor is connected to the base of the second transistor and the first end of the eighth resistor;

[0045] The collector of the first transistor is connected to the first end of the first bidirectional breakdown diode and the first end of the laser socket;

[0046] The second end of the seventh resistor, the emitter of the second transistor, the second end of the eighth resistor and the second end of the first bidirectional breakdown diode are all grounded;

[0047] The second end of the laser socket is connected to a second preset voltage source.

[0048] Preferably, the hot compress control circuit includes: a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a third transistor, a first MOS transistor, a first light-emitting diode, and a second bidirectional breakdown diode;

[0049] Wherein, the first end of the ninth resistor is connected to the hot compress pin of the micro control unit as the input end of the hot compress control circuit;

[0050] The second end of the ninth resistor is connected to the first end of the tenth resistor and the base of the third transistor;

[0051] The collector of the third transistor is connected to the first end of the eleventh resistor;

[0052] The second end of the eleventh resistor is connected to the first end of the twelfth resistor and the gate of the first MOS transistor;

[0053] The source of the first MOS transistor is connected to the second end of the twelfth resistor and the fourth preset voltage source;

[0054] The drain of the first MOS tube is connected to the first end of the thirteenth resistor and the first end of the second bidirectional breakdown diode, and both serve as the output end of the hot compress control circuit and are connected to the hot compress device;

[0055] The second end of the thirteenth resistor is connected to the cathode of the first light emitting diode;

[0056] The emitter of the third transistor, the second end of the tenth resistor, the anode of the first light emitting diode and the second end of the second bidirectional breakdown diode are all grounded.

[0057] On the other hand, the present application also provides a medium-frequency laser therapeutic device, including the above-mentioned therapeutic device control circuit.

[0058] A therapeutic instrument control circuit provided in the present application includes: a microcontrol unit, an electrotherapy control circuit with several output channel circuits, a laser control circuit, an ultrasonic control circuit and a hot compress control circuit; wherein, the input end of each output channel circuit in the electrotherapy control circuit is respectively connected to the corresponding electrotherapy pin in the microcontrol unit, and the output end of the output channel circuit is connected to the electrotherapy device, and is used to control each output channel circuit to perform combined output according to the treatment control signal output by the microcontrol unit, so that the electrotherapy device outputs different types of electrotherapy signals; the input end of the laser control circuit, the input end of the ultrasonic control circuit and the input end of the hot compress control circuit are respectively connected to the corresponding laser pin, ultrasonic pin and hot compress pin in the microcontrol unit, and the output end of the laser control circuit, the output end of the ultrasonic control circuit and the output end of the hot compress control circuit are respectively connected to the corresponding laser treatment device, ultrasonic treatment device and hot compress treatment device, and are used to control the laser treatment device, ultrasonic treatment device and hot compress treatment device to output corresponding laser treatment signals, ultrasonic treatment signals and hot compress treatment signals according to the treatment control signal output by the microcontrol unit. It can be seen that the therapeutic instrument control circuit provided in this application can realize four treatment methods: electrical therapy, laser therapy, ultrasonic therapy and hot compress therapy, and these treatment methods can be carried out simultaneously; and during the electrical therapy process, the output of each output channel circuit can be combined according to different needs, thereby outputting different modes of electrical therapy to meet the needs of different patients in different situations and scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0060] Figure 1 A structural diagram of a therapeutic device control circuit provided in an embodiment of the present application;

[0061] Figure 2 A structural diagram of an electrotherapy control circuit provided in an embodiment of the present application;

[0062] Figure 3 A circuit diagram of an output channel circuit provided in an embodiment of the present application;

[0063] Figure 4 A schematic diagram of a signal waveform output by an output channel circuit according to an embodiment of the present application;

[0064] Figure 5 The electrotherapy flow chart provided in the embodiment of the present application;

[0065] FIG6( a ) is a first circuit diagram of an ultrasonic control circuit provided in an embodiment of the present application;

[0066] FIG6( b ) is a second circuit diagram of the ultrasonic control circuit provided in an embodiment of the present application;

[0067] Figure 7 A circuit diagram of a laser control circuit provided in an embodiment of the present application;

[0068] Figure 8 A circuit diagram of a hot compress control circuit provided in an embodiment of the present application;

[0069] Figure 9 This is a structural diagram of the medium-frequency laser therapy device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0070] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0071] The core of this application is to provide a therapeutic device control circuit and a medium-frequency laser therapeutic device.

[0072] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0073] Figure 1 This is a structural diagram of a therapeutic device control circuit provided in an embodiment of the present application, such as Figure 1 As shown, it includes: a micro control unit 1, an electrotherapy control circuit 2 with several output channel circuits 21, a laser control circuit 3, an ultrasonic control circuit 4 and a hot compress control circuit 5. In addition, Figure 1 The device also includes an electrotherapy device 6, a laser therapy device 7, an ultrasonic device 8, and a hot compress therapy device 9. The circuit connections are as follows: the inputs of the output channel circuits 21 in the electrotherapy control circuit 2 are connected to the corresponding electrotherapy pins in the microcontroller unit 1, and the outputs of the output channel circuits 21 are connected to the electrotherapy device 6; the inputs of the laser control circuit 3 are connected to the corresponding laser pins in the microcontroller unit 1, and the outputs of the laser control circuit 3 are connected to the corresponding laser therapy device 7; the inputs of the ultrasonic control circuit 4 are connected to the corresponding ultrasonic pins in the microcontroller unit 1, and the outputs of the ultrasonic control circuit 4 are connected to the corresponding ultrasonic device 8; the inputs of the hot compress control circuit 5 are connected to the corresponding hot compress pins in the microcontroller unit 1, and the outputs of the hot compress control circuit 5 are connected to the corresponding hot compress therapy device 9.

[0074] In a specific embodiment, the therapeutic device control circuit provided in the present application supports four different treatment methods, and can output different types of electrical treatment signals during the electrical treatment process.

[0075] For electrotherapy, the corresponding electrotherapy control circuit 2 includes several output channel circuits 21, each corresponding to an output. Upon receiving a therapy control signal from the microcontroller unit 1, the current output combination is determined based on the type of electrotherapy indicated by the current control signal. The corresponding output channel circuits 21 are then automatically turned on, thereby combining the outputs of the turned-on output channel circuits 21 so that the electrotherapy device 6 can output different types of electrotherapy signals. For example, the first output channel circuit 21 corresponds to electrotherapy in a low-frequency mode; the second output channel circuit 21 corresponds to electrotherapy in a medium-frequency mode; the first output channel 21 and the second output channel correspond to electrotherapy in an interfering electrical mode, etc. When there are four output channel circuits 21, the electrotherapy control circuit 2 provided in this application can implement electrotherapy in low-frequency mode, medium-frequency mode, interfering electrical mode, combined electro-ultrasound mode, and a four-electro-combination mode.

[0076] For laser therapy, ultrasonic therapy and hot compress therapy, the principles are the same. This application takes laser therapy as an example: when laser therapy is currently required, the laser pin corresponding to the microcontroller unit 1 will output the corresponding treatment control signal. At this time, the laser control circuit 3 starts to conduct and operate, so that the laser treatment device 7 outputs the corresponding laser treatment signal, thereby achieving the purpose of laser treatment.

[0077] It should be noted that the four treatment methods in this application can be carried out simultaneously, that is, the microcontroller unit 1 can simultaneously output treatment control signals corresponding to different treatment methods, thereby driving different circuits to operate to achieve the purpose of two or more treatment methods.

[0078] It should also be noted that hot compress therapy is generally combined with electrotherapy. At this time, the electrotherapy device 6 and the hot compress device 9 are both electrodes. While the patient is being electrotreated through the electrodes, the electrodes are heated to achieve the effect of hot compress therapy.

[0079] A therapeutic instrument control circuit provided in the present application includes: a microcontrol unit, an electrotherapy control circuit with several output channel circuits, a laser control circuit, an ultrasonic control circuit and a hot compress control circuit; wherein, the input end of each output channel circuit in the electrotherapy control circuit is respectively connected to the corresponding electrotherapy pin in the microcontrol unit, and the output end of the output channel circuit is connected to the electrotherapy device, and is used to control each output channel circuit to perform combined output according to the treatment control signal output by the microcontrol unit, so that the electrotherapy device outputs different types of electrotherapy signals; the input end of the laser control circuit, the input end of the ultrasonic control circuit and the input end of the hot compress control circuit are respectively connected to the corresponding laser pin, ultrasonic pin and hot compress pin in the microcontrol unit, and the output end of the laser control circuit, the output end of the ultrasonic control circuit and the output end of the hot compress control circuit are respectively connected to the corresponding laser treatment device, ultrasonic treatment device and hot compress treatment device, and are used to control the laser treatment device, ultrasonic treatment device and hot compress treatment device to output corresponding laser treatment signals, ultrasonic treatment signals and hot compress treatment signals according to the treatment control signal output by the microcontrol unit. It can be seen that the therapeutic instrument control circuit provided in this application can realize four treatment methods: electrical therapy, laser therapy, ultrasonic therapy and hot compress therapy, and these treatment methods can be carried out simultaneously; and during the electrical therapy process, the output of each output channel circuit can be combined according to different needs, thereby outputting different modes of electrical therapy to meet the needs of different patients in different situations and scenarios.

[0080] On the basis of the above embodiments, as a preferred embodiment, Figure 2 and Figure 3As shown, the output channel circuit 21 includes a dual digital-to-analog conversion circuit, a power amplifier circuit, and a voltage transformer circuit. The connections are as follows: the input of the dual digital-to-analog conversion circuit serves as the input of the output channel circuit 21 and is connected to the electrotherapy pin of the microcontroller unit 1; the input of the power amplifier circuit is connected to the output of the dual digital-to-analog conversion circuit; the input of the voltage transformer circuit is connected to the output of the power amplifier circuit; and the output of the voltage transformer control circuit serves as the output of the output channel circuit 21 and is connected to the electrotherapy device 6.

[0081] Further, if Figure 2 and Figure 3 As shown, the dual digital-to-analog conversion circuit includes: a carrier digital-to-analog conversion circuit DAC_A1 composed of a first operational amplifier U1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C1, and a second capacitor C2; and a modulation digital-to-analog conversion circuit DAC_A2 composed of a digital-to-analog conversion chip U5 and a second operational amplifier U2. The power amplifier circuit is the third operational amplifier U3. It can be understood that the carrier digital-to-analog conversion circuit DAC_A1 and the modulation digital-to-analog conversion circuit DAC_A2 are digital-to-analog converters.

[0082] The connection relationship under the current design is as follows: the first end of the first resistor R1 is connected to the electrotherapy pin (DL_PWM) in the microcontroller unit 1 as the input end of the carrier digital-to-analog conversion circuit DAC_A1, the second end of the first resistor R1 is connected to the non-inverting input end of the first operational amplifier U1 and the first end of the second resistor R2; the inverting input end of the first operational amplifier U1 is connected to the first end of the third resistor R3 and the first end of the fourth resistor R4; the first pin of the first operational amplifier U1 is connected to the first end of the first capacitor C1 and the first preset voltage source (VCC-5); the second pin of the first operational amplifier U1 is connected to the first end of the second capacitor C2 and the second preset voltage source (VCC5); the output end of the first operational amplifier U1 is connected to the second end of the second resistor R2 and the first end of the fifth resistor R5, and are connected together to the first reference pin (REFA) of the digital-to-analog conversion chip U5; the second end of the third resistor R3 is connected to the third preset voltage source (VCC3.3); the chip select pin ( ) is connected to the pin (DA_CS) corresponding to the microcontroller unit 1; the first output pin (OUTA) of the digital-to-analog conversion chip U5 is connected to the inverting input terminal of the second operational amplifier U2; the ground pin (AGND) of the digital-to-analog conversion chip U5 is connected to the non-inverting input terminal of the second operational amplifier U2 and is grounded; the first feedback pin (RFBA) of the digital-to-analog conversion chip U5 is connected to the output terminal of the second operational amplifier U2 and the second reference pin (REFB) of the digital-to-analog conversion chip U5; the second output pin (OUTB) of the digital-to-analog conversion chip U5 is connected to the inverting input terminal of the third operational amplifier U3; the output terminal of the third operational amplifier U3 is connected to the second feedback pin (RFBB) of the digital-to-analog conversion chip U5, and together they serve as the output terminal of the power amplifier circuit and the input terminal of the transformer circuit; the non-inverting input terminal of the third operational amplifier U3 is used as an empty pin; the first pin of the third operational amplifier U3 is grounded; the pin (DGND) of the digital-to-analog conversion chip U5 is grounded; the pin ( 、(MSB)DB7、DB0-DB6、 ) are all empty pins; the pin (VDD) of the digital-to-analog conversion chip U5 is connected to the capacitor C10; and the capacitor C10 is also connected to the second preset voltage source (VCC5) and ground.

[0083] In a specific embodiment, the treatment control signal output by the electrotherapy pin in the microcontroller unit 1 is a PWM square wave. When it enters the dual digital-to-analog conversion circuit, the internal components thereof will change according to the voltage of the reference pin, so that the current PWM square wave can be used as a carrier. At the same time, the microcontroller unit 1 outputs 8-bit data from the parallel port, which is input into the 8-bit input buffer port of the corresponding component of the dual digital-to-analog conversion circuit, and the output port voltage changes according to the following formula:

[0084] ;

[0085] in, It is the signal output by the carrier digital-to-analog conversion circuit DAC_A1; is the PWM carrier signal output by microcontroller unit 1, while D is the 8-bit parallel port data output by microcontroller unit 1. It is the discrete value of the modulated waveform, stored in the memory space of microcontroller unit 1 and periodically written to the digital-to-analog converter. It can be any waveform, such as a sine wave, triangle wave, or square wave. Based on the above formula, signal modulation can be achieved using a square wave as the carrier and a variety of waveforms as the modulating wave.

[0086] Among them, the output signal OUT_REF of the carrier digital-to-analog conversion circuit DAC_A1 (that is, the output signal OUT_REF in the above formula) ) is input into the modulated digital-to-analog conversion circuit DAC_A2, and the microcontroller unit 1 also outputs a set of 8-bit data. The two data are similar to the above, except that the 8-bit data controls the output amplitude, that is, the final output intensity. This can be understood as adding an additional modulation wave to the PWM carrier signal. By controlling this additional modulation wave, the output amplitude can be controlled. The power amplifier circuit (third operational amplifier U3) is used to drive the voltage conversion circuit (for example, a transformer). The power amplifier and transformer amplify the signal output by the front end, ultimately acting on the human body to achieve a therapeutic effect. In combined output, the output intensity is controlled uniformly, while in single output, the output intensity is controlled independently.

[0087] Under different modulation waves, the waveforms output by the three-way output channel circuit 21 are as follows: Figure 4 shown.

[0088] In summary, the process of implementing electrotherapy by the output channel circuit 21 is as follows: Figure 5 As shown, including:

[0089] S10: Start.

[0090] S11: Circuit initialization.

[0091] S12: Determine whether the electrical therapy is in single-channel output mode.

[0092] S13: If yes, read the data (signal) corresponding to the single output.

[0093] S14: If not, read the data (signal) corresponding to the combined output.

[0094] S15: Output the corresponding PWM carrier signal.

[0095] S16: Output modulation wave.

[0096] S17: Adjust output intensity.

[0097] S18: Determine whether the treatment is normal.

[0098] S19: If yes, the treatment ends; if not, return to step S15.

[0099] It should be noted that since steps S10-S19 are a summary of the steps described in the above embodiments, this application will not elaborate on them here.

[0100] The present application provides a design scheme for an output channel circuit. Under this design, the output channel circuits can be combined according to the treatment mode. In single-channel output, the intensity of each output channel can be adjusted, and the modulation waveform can be set individually. In combined output, the output intensity of each channel combined together is uniformly controlled, and the modulation waveform data is selected according to preset parameters. At the same time, data can be sent periodically, and the output intensity can be adjusted according to the patient's feeling during the output process until the treatment is completed.

[0101] For ultrasonic therapy, the ultrasonic control circuit 4 includes an output interface circuit, a half-bridge drive circuit, a transformer T1, and a dual-transformer feedback circuit. The connections are as follows: the two inputs of the half-bridge drive circuit serve as the ultrasonic control circuit 4, connected to the ultrasonic pin of the microcontrol unit 1; the output of the half-bridge drive circuit is connected to the primary coil of transformer T1; the two inputs of the dual-transformer feedback circuit are connected to the secondary coil of transformer T1; the two outputs of the dual-transformer feedback circuit are connected to the two inputs of the output interface circuit; and the output of the output interface circuit serves as the output of the ultrasonic control circuit 4, connected to the ultrasonic therapy device 8.

[0102] As shown in Figure 6(a), the output interface circuit includes: interface J3, capacitors C49 and C50, and inductor L7 for filtering. The two input terminals of the output interface circuit are: UsPOsOut and UsNegOutq. Ultrasonic device 8 is plugged into interface J3. The specific connection relationship is not detailed here.

[0103] As shown in Figure 6(b), the half-bridge drive circuit includes: driver chip U15; resistors R69, R70, R71, R72, R73, R74, R75, and R76; capacitors C31, C32, C33, C34, C35, and C36; and MOS transistors Q11 and Q12. The two input terminals of the half-bridge drive circuit are MosPOn and MosNOn, respectively. The dual-transformer feedback circuit includes: analog switches U17 and U16; inductor L6; capacitors C37-C78; resistors R77-R83; and transformers T3 and T4. The two output terminals of the dual-transformer feedback circuit are UsPOsOut and UsNegOutq, respectively. The specific connection relationships are not detailed here.

[0104] In a specific embodiment, the ultrasonic control circuit 4 provided in the present application essentially adopts MOS tubes (Q11 and Q12) and simultaneously controls the primary coil of the transformer T1 corresponding to the dual MOS tubes (Q11 and Q12), so that it has the characteristics of large and stable output power; at the same time, the micro control unit 1 can set parameters according to the corresponding pins to control the output frequency.

[0105] For laser treatment, Figure 7As shown, the laser control circuit 3 includes: a first transistor Q1, a second transistor Q2, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first bidirectional breakdown diode D1, and a laser socket J2. The connection relationship is as follows: the first end of the sixth resistor R6 is connected to the laser pin (DL_HOT_PWM) of the microcontroller unit 1 as the input end of the laser control circuit 3; the second end of the sixth resistor R6 is connected to the first end of the seventh resistor R7, the base of the first transistor Q1, and the collector of the second transistor Q2; the emitter of the first transistor Q1 is connected to the base of the second transistor Q2 and the first end of the eighth resistor R8; the collector of the first transistor Q1 is connected to the first end of the first bidirectional breakdown diode D1 and the first end of the laser socket J2; the second end of the seventh resistor R7, the emitter of the second transistor Q2, the second end of the eighth resistor R8, and the second end of the first bidirectional breakdown diode D1 are all grounded; and the second end of the laser socket J2 is connected to the second preset voltage source (VCC5).

[0106] For hot compress treatment, Figure 8 As shown, the hot compress control circuit 5 includes: a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a third transistor Q3, a first MOS transistor Q4, a first light-emitting diode D2 and a second bidirectional breakdown diode D3. The circuit connection relationship is as follows: the first end of the ninth resistor R9 is connected to the hot compress pin (JG_PWM) of the micro control unit 1 as the input end of the hot compress control circuit 5; the second end of the ninth resistor R9 is connected to the first end of the tenth resistor R10 and the base of the third transistor Q3; the collector of the third transistor Q3 is connected to the first end of the eleventh resistor R11; the second end of the eleventh resistor R11 is connected to the first end of the twelfth resistor R12 and the gate of the first MOS transistor Q4; the source of the first MOS transistor Q4 is connected to the second end of the twelfth resistor R12 and the fourth preset voltage source (VCC24); the drain of the first MOS transistor Q4 is connected to the first end of the thirteenth resistor R13 and the first end of the second bidirectional breakdown diode D3, and together serve as the output end of the hot compress control circuit 5 and are connected to the hot compress device 9; the second end of the thirteenth resistor R13 is connected to the cathode of the first light-emitting diode D2; the emitter of the third transistor Q3, the second end of the tenth resistor R10, the anode of the first light-emitting diode D2, and the second end of the second bidirectional breakdown diode D3 are all grounded.

[0107] It should be noted that the ultrasonic control circuit 4, the laser control circuit 3 and the hot compress control circuit 5 are all conventionally designed circuits, so this application does not elaborate on their principles here.

[0108] It should be noted that the embodiment provided in this application is only one possible implementation method, but is not limited to this implementation method and can be set according to user needs.

[0109] It can be seen that the therapeutic instrument control circuit provided in this application can realize four treatment methods: electrical therapy, laser therapy, ultrasonic therapy and hot compress therapy, and these treatment methods can be carried out simultaneously; and during the electrical therapy process, the output of each output channel circuit can be combined according to different needs, thereby outputting different modes of electrical therapy to meet the needs of different patients in different situations and scenarios.

[0110] On the other hand, the present application also provides a medium frequency laser therapeutic device, including the above-mentioned therapeutic device control circuit. Figure 9 As shown, the device also includes a switching power supply, power management circuit, 7-inch segment code display, speaker, keypad circuit, transducer, TM1729 chip, KT148A chip, and complex programmable logic device (CPLD). Connections and signal transmission among these components are implemented using the Inter-Integrated Circuit (I2C bus), Universal Asynchronous Receiver / Transmitter (UART), and Serial Peripheral Interface (SPI). In addition to implementing the functions of the therapeutic device's control circuit, the keypad circuit, speaker, and 7-inch segment code display enable human interaction with the operator.

[0111] The above is a detailed introduction to the therapeutic device control circuit and the medium-frequency laser therapeutic device provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0112] It should also be noted that, in this specification, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

Claims

1. A therapeutic instrument control circuit, characterized in that: include: A microcontrol unit, an electrotherapy control circuit having a plurality of output channel circuits, a laser control circuit, an ultrasonic control circuit and a hot compress control circuit; The input end of each output channel circuit in the electrotherapy control circuit is respectively connected to the corresponding electrotherapy pin in the microcontroller unit, and the output end of the output channel circuit is connected to the electrotherapy device, and is used to control each output channel circuit to perform combined output according to the treatment control signal output by the microcontroller unit, so that the electrotherapy device can output different types of electrotherapy signals; The input end of the laser control circuit, the input end of the ultrasonic control circuit and the input end of the hot compress control circuit are respectively connected to the corresponding laser pin, ultrasonic pin and hot compress pin in the micro control unit; the output end of the laser control circuit, the output end of the ultrasonic control circuit and the output end of the hot compress control circuit are respectively connected to the corresponding laser treatment device, ultrasonic treatment device and hot compress treatment device, and are used to control the laser treatment device, the ultrasonic treatment device and the hot compress treatment device to output corresponding laser treatment signals, ultrasonic treatment signals and hot compress treatment signals according to the treatment control signal output by the micro control unit.

2. The therapeutic apparatus control circuit according to claim 1, characterized in that: The output channel circuit includes: a dual digital-to-analog conversion circuit, a power amplifier circuit and a voltage conversion circuit; The input end of the dual digital-to-analog conversion circuit is connected to the electrotherapy pin in the microcontroller unit as the input end of the output channel circuit, and is used to perform signal modulation according to the treatment control signal and the modulation wave output by the microcontroller unit, and perform digital-to-analog conversion on the modulated treatment control signal to obtain an analog control signal; The input end of the power amplifier circuit is connected to the output end of the dual digital-to-analog conversion circuit, and is used to amplify the analog control signal; The input end of the transformer circuit is connected to the output end of the power amplifier circuit, and the output end of the transformer control circuit is connected to the electrotherapy device as the output end of the output channel circuit, and is used to perform voltage conversion on the amplified analog signal so as to generate an electrotherapy signal corresponding to the electrotherapy device.

3. The therapeutic apparatus control circuit according to claim 2, characterized in that: The dual digital-to-analog conversion circuit includes: a carrier digital-to-analog conversion circuit and a modulation digital-to-analog conversion circuit; Wherein, the input end of the carrier digital-to-analog conversion circuit is connected to the electrotherapy pin in the micro control unit as the input end of the dual digital-to-analog conversion circuit; The output end of the carrier digital-to-analog conversion circuit is connected to the input end of the modulation digital-to-analog conversion circuit; The output end of the modulation digital-to-analog conversion circuit serves as the output end of the dual digital-to-analog conversion circuit and is connected to the input end of the power amplifier circuit.

4. The therapeutic apparatus control circuit according to claim 3, characterized in that: The carrier digital-to-analog conversion circuit includes: a first operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor and a second capacitor; The first end of the first resistor is connected to the electrotherapy pin in the microcontroller unit as the input end of the carrier digital-to-analog conversion circuit, and the second end of the first resistor is connected to the non-inverting input end of the first operational amplifier and the first end of the second resistor; The inverting input terminal of the first operational amplifier is connected to the first terminal of the third resistor and the first terminal of the fourth resistor; The first pin of the first operational amplifier is connected to the first end of the first capacitor and a first preset voltage source; The second pin of the first operational amplifier is connected to the first end of the second capacitor and a second preset voltage source; The output end of the first operational amplifier is connected to the second end of the second resistor and the first end of the fifth resistor, and the output end of the carrier digital-to-analog conversion circuit is connected to the input end of the modulation digital-to-analog conversion circuit. The second end of the third resistor is connected to a third preset voltage source; The second end of the fourth resistor, the second end of the first capacitor, the second end of the second capacitor, and the second end of the fifth resistor are all grounded.

5. The therapeutic apparatus control circuit according to claim 3, characterized in that: The modulation digital-to-analog conversion circuit includes: a digital-to-analog conversion chip and a second operational amplifier; Wherein, the chip select pin of the digital-to-analog conversion chip is connected to the corresponding pin of the micro control unit; The first reference pin of the digital-to-analog conversion chip is connected to the output end of the carrier digital-to-analog conversion circuit as the input end of the modulation digital-to-analog conversion circuit; The first output pin of the digital-to-analog conversion chip is connected to the inverting input terminal of the second operational amplifier; The ground pin of the digital-to-analog conversion chip is connected to the non-inverting input terminal of the second operational amplifier and is grounded; The first feedback pin of the digital-to-analog conversion chip is connected to the output end of the second operational amplifier and the second reference pin of the digital-to-analog conversion chip; The second output pin of the digital-to-analog conversion chip serves as the output end of the modulation digital-to-analog conversion circuit and is connected to the input end of the power amplifier circuit.

6. The therapeutic apparatus control circuit according to claim 5, characterized in that: The power amplifier circuit is a third operational amplifier; Wherein, the inverting input terminal of the third operational amplifier is connected to the second output pin of the digital-to-analog conversion chip as the input terminal of the power amplifier circuit; The output end of the third operational amplifier is connected to the second feedback pin of the digital-to-analog conversion chip, and together they serve as the output end of the power amplifier circuit and are connected to the input end of the voltage conversion circuit.

7. The therapeutic apparatus control circuit according to claim 1, characterized in that: The ultrasonic control circuit includes: an output interface circuit, a half-bridge drive circuit, a transformer and a dual-transformer feedback circuit; Wherein, the two input ends of the half-bridge driving circuit are connected to the ultrasonic pins of the micro control unit as the ultrasonic control circuit; The output end of the half-bridge driving circuit is connected to the primary coil of the transformer; The two input terminals of the dual-transformer feedback circuit are connected to the secondary coil of the transformer; The two output terminals of the dual-transformer feedback circuit are respectively connected to the two input terminals of the output interface circuit; The output end of the output interface circuit serves as the output end of the ultrasonic control circuit and is connected to the ultrasonic treatment device.

8. The therapeutic apparatus control circuit according to claim 1, characterized in that: The laser control circuit includes: a first transistor, a second transistor, a sixth resistor, a seventh resistor, an eighth resistor, a first bidirectional breakdown diode and a laser socket; Wherein, the first end of the sixth resistor is connected to the laser pin of the micro control unit as the input end of the laser control circuit; The second end of the sixth resistor is connected to the first end of the seventh resistor, the base of the first transistor and the collector of the second transistor; The emitter of the first transistor is connected to the base of the second transistor and the first end of the eighth resistor; The collector of the first transistor is connected to the first end of the first bidirectional breakdown diode and the first end of the laser socket; The second end of the seventh resistor, the emitter of the second transistor, the second end of the eighth resistor and the second end of the first bidirectional breakdown diode are all grounded; The second end of the laser socket is connected to a second preset voltage source.

9. The therapeutic apparatus control circuit according to any one of claims 1 to 8, characterized in that: The hot compress control circuit includes: a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a third transistor, a first MOS transistor, a first light-emitting diode, and a second bidirectional breakdown diode; Wherein, the first end of the ninth resistor is connected to the hot compress pin of the micro control unit as the input end of the hot compress control circuit; The second end of the ninth resistor is connected to the first end of the tenth resistor and the base of the third transistor; The collector of the third transistor is connected to the first end of the eleventh resistor; The second end of the eleventh resistor is connected to the first end of the twelfth resistor and the gate of the first MOS transistor; The source of the first MOS transistor is connected to the second end of the twelfth resistor and a fourth preset voltage source; The drain of the first MOS transistor is connected to the first end of the thirteenth resistor and the first end of the second bidirectional breakdown diode, and both serve as the output end of the hot compress control circuit and are connected to the hot compress device; The second end of the thirteenth resistor is connected to the cathode of the first light emitting diode; The emitter of the third transistor, the second end of the tenth resistor, the anode of the first light emitting diode and the second end of the second bidirectional breakdown diode are all grounded.

10. A medium frequency laser therapeutic device, characterized in that: The therapeutic apparatus control circuit comprises the control circuit of any one of claims 1 to 9.

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