A pulsating air hydraulic pressure cycle therapeutic instrument control circuit

Abstract

The utility model discloses a kind of pulsating air hydraulic pressure cycle therapeutic instrument control circuit, it is related to control circuit technical field, including microcontrol unit, part selection button, mode selection button, on / off button, NFC card swiping instruction module, electrode intensity adjusting knob, host output port, pulse output control circuit, boost circuit, stimulation circuit, electrode, display module and power module;Pulse current and intermittent pressure and warm mode are generated using specific circuit, can directly stimulate nerve muscle tissue, effectively cause muscle excitement and contraction, simulate real person hammer back, knock, massage, massage and the actual feeling of fire pot improves part function.The control circuit structure of hand rehabilitation therapeutic instrument described in the utility model is simple, reasonable in design, and the circuit function is high in integration, and the circuit board is small in size, which provides a basis for the portability of hand rehabilitation instrument.

Description

Technical Field

[0001] This utility model relates to the field of control circuit technology, and in particular to a control circuit for a pulsating air-hydraulic pressure circulation therapy device. Background Technology

[0002] Since over 25% of the neurons in the human brain's sensory cortex are responsible for hand sensation, a medical hand rehabilitation device has been proposed to better assist hand rehabilitation treatment. This device is based on traditional Chinese medicine meridian theory and combines it with modern electronic technology. It uses pulse waveforms to stimulate acupoints to achieve therapeutic and health-preserving purposes. Although this device can promote smooth blood circulation to some extent, thereby allowing pain caused by muscle stiffness to recover naturally, it uses unidirectional waves to stimulate acupoints, resulting in low energy output (efficiency) and a large energy peak (stimulation sensation). Therefore, it causes significant discomfort to patients during the treatment process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a control circuit for a pulsating air-hydraulic pressure circulation therapy device that addresses the shortcomings of the prior art. This circuit has high stability and excellent performance. It uses a specific circuit to generate pulse current, intermittent pressure, and heat, which can directly stimulate neuromuscular tissue, effectively causing muscle excitation and contraction, and simulating the actual sensations of real-life back hammering, tapping, massage, manipulation, and cupping to improve the function of the affected area.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0005] A control circuit for a pulsating air-hydraulic pressure circulation therapy device includes a microcontroller unit, a body part selection button, a mode selection button, a power on / off button, an NFC card swipe indicator module, an electrode intensity adjustment knob, a main unit output port, a pulse output control circuit, a boost circuit, a stimulation circuit, electrodes, a display module, and a power supply module.

[0006] The part selection button, mode selection button, power on / off button, NFC card swipe indicator module, electrode intensity adjustment knob, display module, host output port and power module are respectively connected to the microcontroller unit; the control output terminal of the microcontroller unit is connected to the pulse output control circuit and the boost circuit, the pulse output control circuit and the boost circuit are connected to the stimulation circuit, and the stimulation circuit is connected to the electrode.

[0007] As a further preferred embodiment of the control circuit of the pulsed air-hydraulic pressure circulation therapy device of this utility model, the pulse output control circuit includes a gate voltage VH, a gate voltage VL, a switching transistor MH, a switching transistor ML, resistors R1, R2, R3, R4, and R5, capacitors C1, C2, C3, C4, C5, C6, and C7, an inductor L, and an input voltage VIN. The gate voltage VH is connected to one end of resistor R1, and the other end of resistor R1 is connected to the gate of the switching transistor ML, one end of capacitor C1, and one end of capacitor C2. The other end of capacitor C1 is connected to one end of capacitor C5, the drain of the switching transistor ML, and the input voltage VIN. VIN, the other end of capacitor C5 is connected to the other end of capacitor C2, the source of switching transistor ML, one end of inductor L, one end of capacitor C6, one end of capacitor C3, and the drain of switching transistor ML. The other end of capacitor C3 is connected to one end of resistor R2, the gate of switching transistor ML, and one end of capacitor C4. The other end of resistor R2 is connected to the gate voltage VL. The other end of capacitor C4 is connected to the source of switching transistor ML, the other end of capacitor C6, one end of capacitor C7, and one end of resistor R5. The other end of capacitor C7 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of resistor R3 and the other end of resistor R5. The other end of resistor R3 is connected to the other end of inductor L.

[0008] As a further preferred embodiment of the control circuit of the pulsating air-hydraulic pressure circulation therapy device of this utility model, the boost circuit includes a converter, an inductor, a Zener diode, a first electrolytic capacitor, a second electrolytic capacitor, a first resistor, and a second resistor. The positive terminal of the first electrolytic capacitor is connected to one end of the inductor and the output terminal of the solar panel, respectively. The other end of the inductor is connected to one end of the first resistor. The other end of the first resistor is connected to the positive terminal of the Zener diode and the input terminal of the converter, respectively. The negative terminal of the Zener diode is connected to the positive terminal of the second electrolytic capacitor, the output terminal of the converter, and the normally closed terminal of the switch, respectively. The movable terminal of the switch is connected in series with the second resistor and then connected to the charging circuit. The negative terminals of the first electrolytic capacitor, the negative terminals of the second electrolytic capacitor, and the ground terminal of the converter are connected to ground.

[0009] As a further preferred embodiment of the control circuit of the pulsating air-hydraulic pressure circulation therapy device of this utility model, the power module includes a charging control circuit and a rechargeable battery, and the charging control circuit and the rechargeable battery are connected.

[0010] As a further preferred embodiment of the control circuit for the pulsating air-hydraulic pressure circulation therapy device of this utility model, the charging control circuit includes a signal control terminal, a charging power supply terminal, a device power supply terminal, a battery terminal, a transistor, a first MOSFET, and a second MOSFET; wherein, the charging power supply terminal is grounded through a first resistor and a second resistor connected in series; the base of the transistor is connected to the signal control terminal and the charging power supply terminal respectively, the collector of the transistor is connected to the gate of the second MOSFET through a fourth resistor, and is also connected to the source of the first MOSFET through a third resistor, and the emitter of the transistor is grounded; the source of the second MOSFET is connected to the charging power supply terminal through a first diode, and the drain is connected to the device power supply terminal; the source of the first MOSFET is connected to the charging power supply terminal through a first diode, the gate is connected to the junction of the first resistor and the second resistor, and the drain is connected to the battery terminal.

[0011] As a further preferred embodiment of the control circuit of the pulsating air-hydraulic pressure circulation therapy device of this utility model, the display module is a touch screen display module.

[0012] As a further preferred embodiment of the control circuit of the pulsating air-hydraulic pressure circulation therapy device of this utility model, the microcontroller unit is model STM32.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This utility model discloses a control circuit for a pulsating air-hydraulic pressure circulation therapy device, comprising a microcontroller unit, a site selection button, a mode selection button, a power on / off button, an NFC card swipe indicator module, an electrode intensity adjustment knob, a main unit output port, a pulse output control circuit, a boost circuit, a stimulation circuit, electrodes, a display module, and a power supply module. It employs a specific circuit to generate pulsed current, intermittent pressure, and heat, directly stimulating neuromuscular tissue, effectively inducing muscle excitation and contraction, simulating the actual sensations of real-life back hammering, tapping, massage, manipulation, and cupping to improve the function of the affected area. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the control circuit of a pulsating air-hydraulic pressure circulation therapy device according to this utility model;

[0016] Figure 2 This is a circuit diagram of the pulse output control circuit of this utility model;

[0017] Figure 3 This is the circuit diagram of the boost circuit of this utility model;

[0018] Figure 4 This is a circuit diagram of the charging control circuit of this utility model. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings:

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] A control circuit for a pulsating air-hydraulic pressure circulation therapy device, such as Figure 1 As shown, it includes a microcontroller unit, a part selection button, a mode selection button, a power on / off button, an NFC card swipe indicator module, an electrode intensity adjustment knob, a main unit output port, a pulse output control circuit, a boost circuit, a stimulation circuit, electrodes, a display module, and a power supply module.

[0022] The part selection button, mode selection button, power on / off button, NFC card swipe indicator module, electrode intensity adjustment knob, display module, host output port and power module are respectively connected to the microcontroller unit; the control output terminal of the microcontroller unit is connected to the pulse output control circuit and the boost circuit, the pulse output control circuit and the boost circuit are connected to the stimulation circuit, and the stimulation circuit is connected to the electrode.

[0023] The control circuit structure of the hand rehabilitation therapy device described in this utility model is simple, reasonably designed, highly integrated, and has a small circuit board size, which provides a foundation for the portability of the hand rehabilitation device.

[0024] This invention uses a specific circuit to generate pulsed current, intermittent pressure, and heat, which can directly stimulate neuromuscular tissue, effectively causing muscle excitation and contraction, simulating the actual sensations of real-life back hammering, tapping, massage, manipulation, and cupping to improve the function of the affected area.

[0025] like Figure 2As shown, the pulse output control circuit includes gate voltage VH, gate voltage VL, switching transistors MH and ML, resistors R1, R2, R3, R4, and R5, capacitors C1, C2, C3, C4, C5, C6, and C7, inductor L, and input voltage VIN. Gate voltage VH is connected to one end of resistor R1. The other end of resistor R1 is connected to the gate of switching transistor ML, one end of capacitor C1, and one end of capacitor C2. The other end of capacitor C1 is connected to one end of capacitor C5, the drain of switching transistor ML, and the input voltage VIN. The other end of capacitor C5 is connected to... The other end of capacitor C2 is connected to the source of switching transistor ML, one end of inductor L, one end of capacitor C6, one end of capacitor C3, and the drain of switching transistor ML. The other end of capacitor C3 is connected to one end of resistor R2, the gate of switching transistor ML, and one end of capacitor C4. The other end of resistor R2 is connected to the gate voltage VL. The other end of capacitor C4 is connected to the source of switching transistor ML, the other end of capacitor C6, one end of capacitor C7, and one end of resistor R5. The other end of capacitor C7 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of resistor R3 and the other end of resistor R5. The other end of resistor R3 is connected to the other end of inductor L.

[0026] Preferably, the gate voltage VH has a voltage value of 1.4V, the gate voltage VL has a voltage value of 1.4V, the resistor R3 is the parasitic resistance of the inductor, the resistor R4 is the parasitic resistance of the capacitor, and the capacitors C2 and C4 are the gate-source voltages of the gallium nitride device.

[0027] Gallium nitride (GaN) devices offer numerous advantages over traditional power devices. GaN exhibits lower on-resistance, smaller input capacitance, and reduced conduction losses. Its high-frequency and high-voltage characteristics surpass those of other device types, leading to a wider range of applications. GaN transistors conduct electricity through a two-dimensional electron gas formed from different materials, thus eliminating the reverse recovery problem of the body diode in silicon-based devices. Furthermore, GaN power devices can achieve higher slew rates, enabling faster frequency conversion compared to traditional devices.

[0028] This invention relates to a gallium nitride device with an isolated gate structure and a gallium nitride device with gate injection technology. The latter's gate structure has the advantage of clamping behavior, which can prevent gate overshoot. The gallium nitride device used in this invention is an enhancement-mode NMOS device, which is easy to build with a driving circuit.

[0029] like Figure 3As shown, the boost circuit includes a converter, an inductor, a Zener diode, a first electrolytic capacitor, a second electrolytic capacitor, a first resistor, and a second resistor. The positive terminal of the first electrolytic capacitor is connected to one end of the inductor and the output terminal of the solar panel, respectively. The other end of the inductor is connected to one end of the first resistor. The other end of the first resistor is connected to the positive terminal of the Zener diode and the input terminal of the converter, respectively. The negative terminal of the Zener diode is connected to the positive terminal of the second electrolytic capacitor, the output terminal of the converter, and the normally closed terminal of the switch, respectively. The movable terminal of the switch is connected in series with the second resistor and then connected to the charging circuit. The negative terminals of the first and second electrolytic capacitors and the ground terminal of the converter are connected to ground.

[0030] The power module includes a charging control circuit and a rechargeable battery, which are connected together.

[0031] like Figure 4 As shown, the charging control circuit includes a signal control terminal, a charging power supply terminal, a device power supply terminal, a battery terminal, a transistor, a first MOSFET, and a second MOSFET. The charging power supply terminal is grounded via a first resistor and a second resistor connected in series. The base of the transistor is connected to both the signal control terminal and the charging power supply terminal. The collector of the transistor is connected to the gate of the second MOSFET via a fourth resistor and to the source of the first MOSFET via a third resistor. The emitter of the transistor is grounded. The source of the second MOSFET is connected to the charging power supply terminal via a first diode, and its drain is connected to the device power supply terminal. The source of the first MOSFET is connected to the charging power supply terminal via a first diode, its gate is connected to the junction of the first and second resistors, and its drain is connected to the battery terminal.

[0032] This utility model's charging control circuit uses MOSFETs as power devices, resulting in high power efficiency. When the device's battery is charging, it can cut off battery power and switch to power the device from the mains power supply, thus protecting the battery and extending its lifespan. The device can be turned on and off via hardware and software control, and can also be reset via a hardware reset port to shut down the device.

[0033] Preferably, the display module is a touch screen display module. The touch screen input and display circuit consists of a TFT touch LCD screen forming the display control circuit.

[0034] The microcontroller is an STM32. The advantage of the STM32 microcontroller lies in its low power consumption; the program for this system is designed for low power consumption.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A control circuit for a pulsating air-hydraulic pressure circulation therapy device, characterized in that: It includes a microcontroller unit, a part selection button, a mode selection button, a power on / off button, an NFC card swipe indicator module, an electrode intensity adjustment knob, a main unit output port, a pulse output control circuit, a boost circuit, a stimulation circuit, electrodes, a display module, and a power supply module; The part selection button, mode selection button, power on / off button, NFC card swipe indicator module, electrode intensity adjustment knob, display module, host output port and power module are respectively connected to the microcontroller unit; the control output terminal of the microcontroller unit is connected to the pulse output control circuit and the boost circuit, the pulse output control circuit and the boost circuit are connected to the stimulation circuit, and the stimulation circuit is connected to the electrode.

2. The control circuit for a pulsating air-hydraulic pressure circulation therapy device according to claim 1, characterized in that: The pulse output control circuit includes a gate voltage VH, a gate voltage VL, switching transistors MH and ML, resistors R1, R2, R3, R4, and R5, capacitors C1, C2, C3, C4, C5, C6, and C7, an inductor L, and an input voltage VIN. The gate voltage VH is connected to one end of resistor R1. The other end of resistor R1 is connected to the gate of switching transistor ML, one end of capacitor C1, and one end of capacitor C2. The other end of capacitor C1 is connected to one end of capacitor C5, the drain of switching transistor ML, and the input voltage VIN. The other end of capacitor C5 is connected to... The other end of capacitor C2 is connected to the source of the switching transistor ML, one end of inductor L, one end of capacitor C6, one end of capacitor C3, and the drain of the switching transistor ML. The other end of capacitor C3 is connected to one end of resistor R2, the gate of the switching transistor ML, and one end of capacitor C4. The other end of resistor R2 is connected to the gate voltage VL. The other end of capacitor C4 is connected to the source of the switching transistor ML, the other end of capacitor C6, one end of capacitor C7, and one end of resistor R5. The other end of capacitor C7 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of resistor R3 and the other end of resistor R5. The other end of resistor R3 is connected to the other end of inductor L.

3. The control circuit for a pulsating air-hydraulic pressure circulation therapy device according to claim 1, characterized in that: The boost circuit includes a converter, an inductor, a Zener diode, a first electrolytic capacitor, a second electrolytic capacitor, a first resistor, and a second resistor. The positive terminal of the first electrolytic capacitor is connected to one end of the inductor and the output terminal of the solar panel. The other end of the inductor is connected to one end of the first resistor. The other end of the first resistor is connected to the positive terminal of the Zener diode and the input terminal of the converter. The negative terminal of the Zener diode is connected to the positive terminal of the second electrolytic capacitor, the output terminal of the converter, and the normally closed terminal of a switch. The movable terminal of the switch is connected in series with the second resistor and then connected to the charging circuit. The negative terminals of the first and second electrolytic capacitors and the ground terminal of the converter are connected to ground.

4. The control circuit for a pulsating air-hydraulic pressure circulation therapy device according to claim 1, characterized in that: The power module includes a charging control circuit and a rechargeable battery, which are connected together.

5. The control circuit for a pulsating air-hydraulic pressure circulation therapy device according to claim 4, characterized in that: The charging control circuit includes a signal control terminal, a charging power supply terminal, a device power supply terminal, a battery terminal, a transistor, a first MOSFET, and a second MOSFET. The charging power supply terminal is grounded via a first resistor and a second resistor connected in series. The base of the transistor is connected to both the signal control terminal and the charging power supply terminal. The collector of the transistor is connected to the gate of the second MOSFET via a fourth resistor and to the source of the first MOSFET via a third resistor. The emitter of the transistor is grounded. The source of the second MOSFET is connected to the charging power supply terminal via a first diode, and its drain is connected to the device power supply terminal. The source of the first MOSFET is connected to the charging power supply terminal via a first diode, its gate is connected to the junction of the first and second resistors, and its drain is connected to the battery terminal.

6. The control circuit for a pulsating air-hydraulic pressure circulation therapy device according to claim 1, characterized in that: The display module is a touch screen display module.

7. The control circuit for a pulsating air-hydraulic pressure circulation therapy device according to claim 1, characterized in that: The microcontroller unit is an STM32.

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