A smart electrical stimulation decompression device

Abstract

This utility model discloses an intelligent electrical stimulation decompression device, applied in the intersection of medical device and consumer electronics technology. A pressure sensor is disposed on the inner surface of the decompression device to detect the pressure gradient of a finger grasping the device; electrodes are fixed on the outer surface of the device to send electrode stimulation to the contacting finger and to collect electromyographic signals from the skin to determine muscle tension; a multimodal sensing feedback circuit is connected to the pressure sensor and electrodes to send electrode stimulation level signals to the electrodes based on the pressure gradient and muscle tension, so that the electrodes can send corresponding electrode stimulation to the finger according to the electrode stimulation level signals. Therefore, the intelligent electrical stimulation decompression device provided in this application solves the problems of limited effectiveness and poor user adaptability of single decompression methods through a dual mechanism of physical compression deformation feedback and adjustable low-frequency electrical stimulation.

Description

Technical Field

[0001] This utility model relates to the intersection of medical device and consumer electronics technology, and in particular to an intelligent electrical stimulation decompression device. Background Technology

[0002] Currently, sports medical devices used in the medical field, specifically for rehabilitation and sports training, are mainly divided into decompression balls (e.g., UHOU particle decompression balls) and low-frequency electrical stimulation devices. However, decompression balls can only release pressure through physical compression, but cannot relieve deep muscle fatigue and lack a biofeedback mechanism. Low-frequency electrical stimulation devices require fixed electrode pads and are complex to operate, making them difficult to integrate into daily use scenarios and lacking tactile interaction design. In other words, current technologies for decompression balls and low-frequency electrical stimulation devices cannot simultaneously achieve synergistic decompression through tactile feedback and electrophysiological intervention, and their parameter adjustment intelligence is insufficient.

[0003] In view of the above-mentioned technologies, seeking a decompression device that can achieve synergistic decompression by tactile feedback and electrophysiological intervention is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent electrical stimulation decompression device that can solve the problems in the prior art where decompression balls and low-frequency electrical stimulation devices cannot simultaneously achieve synergistic decompression through tactile feedback and electrophysiological intervention, and where the level of intelligent parameter adjustment is insufficient.

[0005] To solve the above-mentioned technical problems, this utility model provides an intelligent electrical stimulation decompression device, including: a decompression device, a pressure sensor, electrodes, a multimodal sensing feedback circuit, and several ring-shaped objects;

[0006] Several ring-shaped objects are set on the outer surface of the decompression device to fix the position of the fingers grasping the intelligent electrical stimulation decompression device;

[0007] A pressure sensor is located on the inner surface of the decompression device to detect the pressure gradient when a finger grasps the decompression device;

[0008] Electrodes are fixed to the outer surface of the decompression device and are used to send electrode stimulation to the fingers in contact and to collect electromyographic signals from the skin to determine the corresponding muscle tension.

[0009] The multimodal sensing feedback circuit is connected to the pressure sensor and electrodes to send corresponding electrode stimulation level signals to the electrodes based on the pressure gradient and muscle tension.

[0010] Preferably, the pressure sensor is a capacitive pressure sensing film, which covers the compression contact area on the inner surface of the decompression device.

[0011] Preferably, the multimodal sensing feedback circuit includes: a power supply circuit, a power management circuit, a boost control circuit, a microcontroller circuit, an intensity detection circuit, and an electrical stimulation circuit;

[0012] The first end of the power supply circuit is connected to the first end of the power management circuit, and the second end of the power supply circuit is connected to the first end of the microcontroller circuit. It is used to output a first preset voltage to the power management circuit and provide a second preset voltage to the microcontroller circuit after voltage stabilization.

[0013] The first terminal of the boost control circuit is connected to the second terminal of the power management circuit, the second terminal of the boost control circuit is connected to the second terminal of the microcontroller circuit, and the third terminal of the boost control circuit is connected to the first terminal of the electrical stimulation circuit, which is used to output a third preset voltage to the electrical stimulation circuit.

[0014] The first end of the strength detection unit is connected to the pressure sensor and the electrode, and the second end of the strength detection unit is connected to the third end of the microcontroller circuit to obtain the pressure gradient and muscle tension.

[0015] The fourth terminal of the microcontroller circuit is connected to the second terminal of the electrical stimulation circuit, and the third terminal of the electrical stimulation circuit is connected to the electrode, which is used to send the corresponding electrode stimulation level signal to the electrode according to the pressure gradient and muscle tension.

[0016] Preferably, the power supply circuit includes: a first transistor circuit, a second transistor circuit, a third transistor circuit, a fourth transistor circuit, an optocoupler switch, a first voltage regulator circuit, and a second voltage regulator circuit;

[0017] In this circuit, the first pin of the optocoupler switch is connected to the first terminal of the first transistor circuit.

[0018] The second and third pins of the optocoupler switch are connected to the first and second terminals of the first voltage regulator circuit, respectively.

[0019] The fourth pin of the optocoupler switch is connected to the first terminal of the second transistor circuit and the first terminal of the second voltage regulator circuit.

[0020] The fifth and sixth pins of the optocoupler switch are connected to the positive and negative terminals of the electrode, respectively.

[0021] The second and third terminals of the second transistor circuit are connected to the first terminal of the third transistor circuit and the first terminal of the fourth transistor circuit, respectively.

[0022] The second terminal of the first transistor circuit, the third terminal of the first voltage regulator circuit, the second terminal of the second voltage regulator circuit, the second terminal of the third transistor circuit, and the second terminal of the fourth transistor circuit together serve as the second terminal of the power supply circuit, which is connected to the first terminal of the microcontroller circuit.

[0023] The fourth terminal of the fourth transistor circuit is connected to the positive terminal of the battery.

[0024] Preferably, the power management circuit includes: an interface voltage divider circuit, a management circuit, an auxiliary circuit, and a status indicator circuit;

[0025] Among them, the first terminal of the interface voltage divider circuit and the first terminal of the status indicator circuit are connected to the microcontroller circuit;

[0026] The second terminal of the interface voltage divider circuit is connected to the first terminal of the management circuit, and both are connected to the first preset power supply.

[0027] The third and fourth terminals of the interface voltage divider circuit are connected to the positive and negative terminals of the electrodes, respectively.

[0028] The second and third terminals of the management circuit, the first and second terminals of the auxiliary circuit, and the second terminal of the status indicator circuit are all connected to the positive terminal of the battery.

[0029] The third terminal of the auxiliary circuit is connected to the second preset power supply.

[0030] Preferably, the management circuit includes: a management chip, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, and a first group of light-emitting diodes;

[0031] The first pin of the management chip is connected to the first terminal of the first capacitor, and serves as the second terminal of the management circuit, which is connected to the positive terminal of the battery.

[0032] The second pin of the management chip is connected to the first end of the second capacitor, and together they serve as the first end of the management circuit, which is connected to the second end of the interface voltage divider circuit and the first preset power supply.

[0033] The third pin of the management chip is connected to the first end of the first resistor;

[0034] The fourth pin of the management chip is connected to the first end of the second resistor;

[0035] The fifth pin of the management chip is connected to the first end of the third resistor;

[0036] The second end of the first resistor is connected to the first cathode of the first light-emitting diode group;

[0037] The anode of the first LED group is connected to the positive terminal of the battery as the third terminal of the management circuit;

[0038] The second cathode of the first light-emitting diode group is connected to the second terminal of the second resistor;

[0039] The sixth pin of the management chip, the second terminal of the first capacitor, the second terminal of the second capacitor, and the second terminal of the third resistor are grounded.

[0040] Preferably, the microcontroller circuit includes: a control circuit, a switching circuit, a first light-emitting diode circuit, and a second light-emitting diode circuit;

[0041] In this circuit, the first terminal of the control circuit is connected to the second terminal of the power supply circuit as the first terminal of the microcontroller circuit.

[0042] The second terminal of the control circuit is connected to the third terminal of the power management circuit;

[0043] The third, fourth, and fifth terminals of the control circuit are connected to the switching circuit, the first LED circuit, and the second LED circuit, respectively.

[0044] Preferably, the control circuit includes: a control chip, a crystal oscillator, a first filter circuit, and a second filter circuit;

[0045] Among them, the first, second, third, fourth and fifth pins of the control chip are connected together as the first terminal of the control circuit and the second terminal of the power supply circuit;

[0046] The sixth and seventh pins of the control chip are connected to the third pin of the power management circuit as the second terminal of the control circuit.

[0047] The eighth and ninth pins of the control chip are connected to the switching circuit as the third terminal of the control circuit.

[0048] The tenth and eleventh pins of the control chip are connected to the first light-emitting diode circuit as the fourth terminal of the control circuit.

[0049] Pins 12, 13, and 14 of the control chip are connected to the second LED circuit as the fifth terminal of the control circuit.

[0050] Pins 15 and 16 of the control chip are connected to the crystal oscillator;

[0051] The seventeenth pin of the control chip is connected to the first filter circuit.

[0052] Pins 18, 19, and 20 of the control chip are connected to the second filter circuit.

[0053] Preferably, the switching circuit includes: a first switch, a second switch, and a fourth resistor;

[0054] The first terminal of the first switch is connected to the first terminal of the second switch and grounded;

[0055] The second terminal of the first switch is connected to the first terminal of the fourth resistor;

[0056] The second terminal of the fourth resistor is connected to the positive terminal of the battery;

[0057] The second terminal of the second switch and the second terminal of the first switch together serve as the first terminal of the switching circuit and are connected to the third terminal of the control circuit.

[0058] Preferably, the first light-emitting diode circuit includes: a fifth resistor, a sixth resistor, and a second light-emitting diode group;

[0059] In this configuration, the anode of the second light-emitting diode is connected to the positive terminal of the battery.

[0060] The first cathode of the second light-emitting diode is connected to the first terminal of the fifth resistor;

[0061] The second cathode of the second light-emitting diode is connected to the first terminal of the sixth resistor;

[0062] The second terminals of the fifth resistor and the sixth resistor are connected together to the fourth terminal of the control circuit.

[0063] Therefore, the intelligent electrical stimulation decompression device provided in this application solves the problems of limited effectiveness and poor user adaptability of a single decompression method through the dual mechanism of physical compression deformation feedback and adjustable low-frequency electrical stimulation. Furthermore, the multimodal sensing feedback circuit enables dynamic parameter adaptation, achieving precise decompression and electrical stimulation. Attached Figure Description

[0064] To more clearly illustrate the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0065] Figure 1 A schematic diagram of an intelligent electrical stimulation decompression device provided in an embodiment of this application;

[0066] Figure 2 A physical image of an intelligent electrical stimulation decompression device provided in an embodiment of this application;

[0067] Figure 3 A circuit diagram of a multimodal sensing feedback circuit provided in an embodiment of this application;

[0068] Figure 4 A circuit diagram of the power supply circuit provided in the embodiments of this application;

[0069] Figure 5(a) is a circuit diagram of the management circuit provided in an embodiment of this application;

[0070] Figure 5(b) is a circuit diagram of the auxiliary circuit provided in an embodiment of this application;

[0071] Figure 5(c) is a circuit diagram of the interface voltage divider circuit provided in the embodiment of this application;

[0072] Figure 5(d) is a circuit diagram of the status indication circuit provided in the embodiment of this application;

[0073] Figure 5(e) is a circuit diagram of the interface circuit provided in an embodiment of this application;

[0074] Figure 6(a) is a circuit diagram of the control circuit provided in an embodiment of this application;

[0075] Figure 6(b) is a circuit diagram of the switching circuit provided in an embodiment of this application;

[0076] Figure 6(c) is a circuit diagram of the first light-emitting diode circuit provided in an embodiment of this application;

[0077] Figure 6(d) is a circuit diagram of the second light-emitting diode circuit provided in the embodiment of this application;

[0078] Figure 6(e) is a circuit diagram of the download interface provided in an embodiment of this application. Detailed Implementation

[0079] 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.

[0080] The core of this invention is to provide an intelligent electrical stimulation decompression device.

[0081] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0082] Figure 1 This is a schematic diagram of an intelligent electrical stimulation decompression device provided in an embodiment of this application, as shown below. Figure 1 As shown, the device includes: a decompression device 1 (made of silicone and of any shape), a pressure sensor 2, an electrode 3, a multimodal sensing feedback circuit 4, and several ring-shaped objects 5 (made of silicone). The internal connections are as follows: several ring-shaped objects 5 are located on the outer surface of the decompression device 1; the pressure sensor 2 is located on the inner surface of the decompression device 1; the electrode 3 is fixed to the outer surface of the decompression device 1; the multimodal sensing feedback circuit 4 is connected to the pressure sensor 2 and the electrode 3, and the multimodal sensing feedback circuit 4 can be located inside or outside the decompression device 1.

[0083] In a specific embodiment, Figure 1The decompression device 1 is spherical in shape. Its working principle is as follows: the rehabilitation patient's fingers grip the device through the corresponding ring 5, applying pressure; the internal pressure sensor 2 acquires the gripping force of the device 1 and sends the data to the multimodal sensor feedback circuit 4; the multimodal sensor feedback circuit 4 uses a proportional-integral-differential function algorithm (PID algorithm) to determine the first electrode stimulation level signal corresponding to the current pressure gradient; then, it sends the corresponding electrode stimulation to the finger through electrode 3; after electrode stimulation, electrode 3 again acquires the feedback from the electrode stimulation and collects the electromyographic signal of the skin after stimulation to determine the muscle tension, and sends the data to the multimodal sensor feedback circuit 4; the multimodal sensor feedback circuit 4 again uses the PID algorithm to determine the pressure gradient and muscle tension to determine the latest electrode stimulation level signal, and then sends the corresponding electrode stimulation to the finger through electrode 3 again, thus completing the cycle. A physical diagram of the intelligent electrical stimulation decompression device is shown below. Figure 2 As shown.

[0084] The specific algorithm principle is as follows: Proportional, integral, and derivative operations are performed on the initial or first pressure gradient to obtain initial proportional, integral, and derivative values. These three values ​​are then summed and subtracted to obtain the initial target value. This initial target value corresponds to the electrode stimulation level signal (primarily reflecting the relationship between grip strength and electrical stimulation intensity; for example, a higher pressure gradient indicates greater grip or grasping force, necessitating mid-frequency electrical stimulation). Based on the determined initial target value, the corresponding electrode stimulation level signal is determined so that electrode 3 can send the corresponding electrode stimulation to the finger. After electrode 3 provides stimulation, the finger or corresponding location will provide feedback based on the electrical stimulation. This application uses muscle tension to represent the level of feedback, thus ending the first round. Subsequently, the muscle tension and the current pressure gradient are summed and subtracted again, and then proportional, integral, and derivative operations are performed again to obtain three corresponding values. These three values ​​are then summed and subtracted to determine the corresponding electrical stimulation level signal, so that electrode 3 can send the corresponding electrode stimulation to the finger based on the current electrical stimulation level signal, thus ending the second round. This process is continuously repeated to achieve the goal of constantly adjusting the electrical stimulation based on the current pressure gradient and muscle tension. The correspondence between the pressure gradient and the electrical stimulation is as follows: Pressure threshold trigger: When the pressure is >5N, it automatically switches to medium frequency stimulation (20-50Hz) to enhance muscle relaxation frequency adaptation. The pressing frequency and the electrical stimulation frequency are linked in a 1:3 ratio (e.g., 3Hz grip pressure corresponds to 9Hz electrical pulse).

[0085] The electrical stimulation primarily involves low-frequency electrical stimulation (1-100Hz), applied to acupoints (such as Hegu acupoint) via electrode 3 to block pain signal transmission (gate theory) while simultaneously promoting endorphin secretion. The electrical stimulation parameters in this application are initially labeled by an expert system or preset rules, or optimized through online feedback (such as dynamic adjustment via reinforcement learning), and include: pulse amplitude (mA), frequency (Hz), duty cycle (%), and stimulation duration (s).

[0086] As a preferred embodiment, the pressure sensor 2 is a capacitive pressure sensing film, which covers the compression contact area on the inner surface of the decompression device. It detects grip force parameters (pressure gradient) in real time through an internal PDMS substrate embedded with silver nanowire structures, including: pressure value (0.1-10N range); pressing frequency (0.5-5Hz); and grip mode (e.g., continuous grip, intermittent pressing). This data is converted into electrical signals by an AD7746 capacitive digital converter and input to the multimodal sensing feedback circuit 4. The grip force parameters are further divided into time-domain characteristic parameters, frequency characteristic parameters, and nonlinear characteristic parameters. Time-domain characteristic parameters include: average grip force, peak grip force, grip force change rate (first / second derivative), and fatigue index (e.g., slope descent rate). Frequency-domain characteristic parameters include: low-frequency / high-frequency component ratio extracted through short-time Fourier transform (STFT). Nonlinear characteristic parameters include: sample entropy and fractal dimension (used to characterize the complexity of the grip force signal).

[0087] In other words, the overall principle of the intelligent electrical stimulation decompression device provided in this application is as follows: a capacitive pressure sensing film is used to cover the pressure contact surface, and a silver nanowire array is embedded in its PDMS substrate to detect the finger pressure gradient (0.1-10N) in real time. When the pressure exceeds the user's preset threshold (such as high-frequency pressing >3Hz when anxious), the change in film capacitance is processed by a high-precision capacitance-to-digital converter to generate a 0.5-5V analog signal input to the multimodal sensing feedback circuit 4. The epidermal electromyography signal (50-500μV range) is collected through the electrode 3 made of silver (Ag) / silver chloride (AgCl), amplified by 1000 times gain using an instrumentation amplifier, and combined with the corresponding dynamic stability algorithm to analyze muscle tension, which is fed back to the multimodal sensing feedback circuit 4 in real time. The multimodal sensing feedback circuit 4 continuously adjusts the electrical stimulation according to the current pressure gradient and muscle tension through a PID algorithm.

[0088] It should be noted that electrode 3 can be a flexible electrode of model PDMS-AgNWs (contact resistance <5kΩ) and supports dual-channel output. The output parameters of the electrode stimulation are: voltage: 40-90V (dynamically adjustable); frequency: 1-100Hz (1Hz step); pulse width: 50-300μs (10μs step).

[0089] This invention provides an intelligent electrical stimulation decompression device, comprising: a decompression device, a pressure sensor, electrodes, a multimodal sensing feedback circuit, and several ring-shaped components. The outer surface of the decompression device has several ring-shaped components to fix the position of the finger grasping the device. The pressure sensor is disposed on the inner surface of the decompression device to detect the pressure gradient of the finger grasping it. The electrodes are fixed on the outer surface of the decompression device to send electrode stimulation to the contacting finger and to collect electromyographic signals from the skin to determine the corresponding muscle tension. The multimodal sensing feedback circuit is disposed inside the decompression device and connected to the pressure sensor and electrodes, sending electrode stimulation level signals to the electrodes based on the pressure gradient and muscle tension. Therefore, the intelligent electrical stimulation decompression device provided in this application solves the problems of limited effectiveness and poor user adaptability of single decompression methods through a dual mechanism of physical compression deformation feedback and adjustable low-frequency electrical stimulation. Furthermore, the multimodal sensing feedback circuit enables dynamic parameter adaptation, achieving precise decompression and electrical stimulation.

[0090] like Figure 3 As shown, its multimodal sensing feedback circuit 4 includes: a power supply circuit 41, a power management circuit 42, a boost control circuit 43, a microcontroller circuit 44, an intensity detection circuit 45, and an electrical stimulation circuit 46. The connections are as follows: the first terminal of the power supply circuit 41 is connected to the first terminal of the power management circuit 42; the second terminal of the power supply circuit 41 is connected to the first terminal of the microcontroller circuit 44; the first terminal of the boost control circuit 43 is connected to the second terminal of the power management circuit 42, the second terminal of the boost control circuit 43 is connected to the second terminal of the microcontroller circuit 44, and the third terminal of the boost control circuit 43 is connected to the first terminal of the electrical stimulation circuit 46; the first terminal of the intensity detection unit 45 is connected to the pressure sensor 2 and the electrode 3, the second terminal of the intensity detection unit 45 is connected to the third terminal of the microcontroller circuit 44; the fourth terminal of the microcontroller circuit 44 is connected to the second terminal of the electrical stimulation circuit 46, and the third terminal of the electrical stimulation circuit 46 is connected to the electrode 3.

[0091] In a specific embodiment, the power supply circuit 41 can be understood as a power supply battery, which adopts a 3.7V lithium polymer battery (capacity 2000mAh) and supports 5V / 2A fast charging. The charging and discharging control is realized through the power management module 42. The power management module 42 stabilizes the lithium battery voltage to 3.3V / 5V (second preset voltage) to power the microcontroller circuit 44 and pressure sensor 2, and provides high-voltage drive power (third preset voltage) to the electrical stimulation circuit 46 through the boost control circuit 43. The boost control circuit 43 boosts the 3.3V input to 40-90V (duty cycle adjustable from 10% to 90%); the microcontroller circuit 44 analyzes the signal (electromyography / pressure data) of the intensity detection circuit 45, and dynamically adjusts the frequency (1-100Hz) and pulse width (50-300μs) of the electrical stimulation circuit (which can be understood as the electrical stimulation level signal) through the PID algorithm; the intensity detection circuit 45 connects the pressure sensor 2 and the electrode 3, detects data such as pressure gradient, and transmits it to the microcontroller circuit 44 through the I²C interface.

[0092] The intensity detection circuit 45 detects a decrease in impedance (e.g., impedance <2kΩ due to sweating) and triggers the following actions: the microcontroller circuit 44 reduces the duty cycle of the PWM signal, causing the output voltage to drop to 50V; the frequency of the electrical stimulation circuit 46 is adjusted to 15Hz to avoid current overload (maintaining the output current ≤15mA).

[0093] Meanwhile, the circuit also includes safety protection mechanisms, namely overcurrent protection and electrode detachment detection protection. Overcurrent protection: the response time of the hardware-level PTC (positive temperature coefficient) self-resetting fuse is coordinated with the software-defined fusing threshold; Electrode detachment detection protection: when the monitored contact impedance exceeds the threshold, the output is immediately cut off and an audible and visual alarm is triggered.

[0094] It should be noted that the embodiments provided in this application are only one possible implementation method, but are not limited to this only implementation method. Users can set their own implementation methods according to their needs.

[0095] This application provides a specific implementation of a multimodal sensing feedback circuit, which can acquire the pressure gradient detected by the pressure sensor and the muscle tension collected by the electrode, and send an electrode stimulation level signal to the electrode according to the pressure gradient and muscle tension, so that the electrode can send the corresponding electrode stimulation to the finger according to the electrode stimulation level signal.

[0096] Furthermore, such as Figure 4As shown, its power supply circuit 41 includes: a first transistor circuit, a second transistor circuit, a third transistor circuit, a fourth transistor circuit, an optocoupler switch U1, a first voltage regulator circuit, and a second voltage regulator circuit. In addition, the circuit also includes a battery BAT, which can be understood as the connection point between the power supply circuit 41 and the surrounding circuits. Specifically, the first transistor circuit includes: resistor R10 and transistor Q1; the second transistor circuit is transistor Q2; the third transistor circuit includes: resistors R17 and R18 and transistor Q3; the fourth transistor circuit includes: diode D4, resistor R16, transformer L3, transistor Q4, and capacitor C14; the first voltage regulator circuit includes: diode D3, resistors R11 and R12; the second voltage regulator circuit includes: resistors R13, R14, and R15, and diode D6. The circuit connections are as follows: the first pin of optocoupler U1 is connected to the first terminal of the first transistor circuit; the second and third pins of optocoupler U1 are connected to the first and second terminals of the first voltage regulator circuit, respectively; the fourth pin of optocoupler U1 is connected to the first terminal of the second transistor circuit and the first terminal of the second voltage regulator circuit; the fifth and sixth pins of optocoupler U1 are connected to the positive and negative terminals (OUT_A and OUT_B) of the respective electrodes; the second and third terminals of the second transistor circuit are connected to the first terminals of the third and fourth transistor circuits, respectively; the second terminals of the first transistor circuit, the third terminal of the first voltage regulator circuit, the second terminal of the second voltage regulator circuit, the second terminal of the third transistor circuit, and the second terminal of the fourth transistor circuit together serve as the second terminal of the power supply circuit 41 and are connected to the first terminal of the microcontroller circuit 44; the fourth terminal of the fourth transistor circuit is connected to the positive terminal +BAT of the battery.

[0097] The second terminal of the first transistor circuit is labeled P_VOL; the third terminal of the first voltage regulator circuit is labeled ADC2; the second terminal of the second voltage regulator circuit is labeled ADC1; the second terminal of the third transistor circuit is labeled P_VOL1; and the second terminal of the fourth transistor circuit is labeled P_PWM.

[0098] The circuit employs transformer L3 to step down the input AC power, which is then converted to DC power via a rectifier bridge. Capacitors in the circuit filter the rectified voltage, effectively smoothing voltage fluctuations and providing a stable DC input for subsequent circuits. Multiple transistors (Q1, Q2, Q3, Q4) work together to achieve precise control of current and voltage to meet the needs of different loads. Resistors (R10-R18) and diodes (D3, D4, and D5) are used to set the current path and provide protection, preventing damage to the circuit from excessive current or reverse current. Optocoupler switch U1 forms the drive circuit, achieving electrical isolation between input and output and effectively controlling the output.

[0099] In a specific embodiment, the power management circuit 42 includes: an interface voltage divider circuit, a management circuit, an auxiliary circuit, and a status indicator circuit. The circuit connections are as follows: the first terminal of the interface voltage divider circuit and the first terminal of the status indicator circuit are connected to the microcontroller circuit 44; the second terminal of the interface voltage divider circuit is connected to the first terminal of the management circuit, and both are connected to a first preset power supply; the third and fourth terminals of the interface voltage divider circuit are connected to the positive and negative terminals of the electrodes, respectively; the second and third terminals of the management circuit, the first and second terminals of the auxiliary circuit, and the second terminal of the status indicator circuit are all connected to the positive terminal BAT+ of the battery; the third terminal of the auxiliary circuit is connected to a second preset power supply.

[0100] Furthermore, as shown in Figure 5(a), the management circuit includes: a management chip U2, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, and a first light-emitting diode group, wherein the first light-emitting diode group includes two light-emitting diodes DL1 and DL2. The connection relationships are as follows: the first pin (BAT) of the management chip U2 is connected to the first terminal of the first capacitor C1, and serves as the second terminal of the management circuit, connected to the positive terminal +BAT of the battery; the second pin (VCC) of the management chip U2 is connected to the first terminal of the second capacitor C2, and together they serve as the first terminal of the management circuit, connected to the second terminal of the interface voltage divider circuit and the first preset power supply +5V; the third pin ( / STBDY) of the management chip is connected to the first terminal of the first resistor R1; the fourth pin ( / CHRG) of the management chip U2 is connected to the first terminal of the second resistor R2; the fifth pin (PROG) of the management chip U2 is connected to the first terminal of the third resistor R3; the second terminal of the first resistor R1 is connected to the first cathode of the first LED group; the anode of the first LED group serves as the third terminal of the management circuit, connected to the positive terminal +BAT of the battery; the second cathode of the first LED group is connected to the second terminal of the second resistor R2; the sixth pin (GND) of the management chip U2, the second terminal of the first capacitor C1, the second terminal of the second capacitor C2, and the second terminal of the third resistor R3 are grounded.

[0101] As shown in Figure 5(b), the auxiliary circuit includes: a voltage regulator chip U3, capacitors C12 and C13. The connections are as follows: the first pin (IN) of the voltage regulator chip U3 is connected to the first terminal of capacitor C12, and both are connected to the positive terminal +BAT of the battery; the second pin (OUT) of the voltage regulator chip U3 is connected to the first terminal of capacitor C13, and connected to the second preset power supply +V3.3; the third pin (GND) of the voltage regulator chip U3 is connected to the second terminal of capacitor C12 and grounded; the fourth pin (EN) of the voltage regulator chip U3 is connected to the positive terminal +BAT of the battery; the second terminal of capacitor C13 is grounded; and the fifth pin (NC) of the voltage regulator chip U3 is an unused pin.

[0102] In addition, the interface voltage divider circuit is shown in Figure 5(c), including: interface P1, resistors R6 and R7. The status indicator circuit is shown in Figure 5(d), including: resistors R8-R9.

[0103] Furthermore, it also includes an interface circuit, as shown in Figure 5(e), including interface P2.

[0104] The first terminal of the interface voltage divider circuit is labeled ADC0; the first terminal of the status indicator circuit is labeled ADC3.

[0105] In this embodiment, the management chip U2, as the core component, is responsible for managing and monitoring the battery charging process. Its pins connect to components such as charging control, status indication, and battery connection. A +5V power input provides the operating voltage for the chip, while grounding ensures circuit stability. The pins of the management chip U2 ( / CHRG and / STDBY) visually display the charging status via LEDs, while pins ( / CHRG and PROG) can be used to adjust charging parameters. Its resistors (R1-R3, R6-R9) and capacitors (C1-C2 and C12-C13) stabilize and control the current, ensuring the stability and safety of the charging process. Connectors (P1 and P2) are connected to OUT_A and +BAT respectively for easy connection to external devices.

[0106] Based on the above embodiments, as a preferred embodiment, the microcontroller circuit 44 includes: a control circuit, a switching circuit, a first light-emitting diode circuit, and a second light-emitting diode circuit. The circuit connections are as follows: the first terminal of the control circuit is connected to the second terminal of the power supply circuit 41 as the first terminal of the microcontroller circuit 44; the second terminal of the control circuit is connected to the third terminal of the power management circuit 42; and the third, fourth, and fifth terminals of the control circuit are respectively connected to the switching circuit, the first light-emitting diode circuit, and the second light-emitting diode circuit.

[0107] Further, as shown in Figure 6(a), the control circuit includes: a control chip U4, a crystal oscillator Y1, a first filter circuit, and a second filter circuit. The first filter circuit includes capacitors C21 and C22, and a resistor R20; the second filter circuit includes capacitors C7-C9, a resistor R21, and an inductor L2; in addition, it also includes capacitors C23-C26. The connection relationships are as follows: the first pin (P32), second pin (P23 / ADC1), third pin (P20 / ADC9), fourth pin (P00), and fifth pin (P15 / ADC4) of the control chip U4 together serve as the first terminal of the control circuit and are connected to the second terminal of the power supply circuit 41; the sixth pin (P11 / ADC0) and seventh pin (P14 / ADC3) of the control chip U4 serve as the second terminal of the control circuit and are connected to the third terminal of the power management circuit 42; the eighth pin (P01) and ninth pin (P18) of the control chip U4 serve as the third terminal of the control circuit and are connected to the switching circuit; the tenth pin (P33) and the... Pin 11 (P34) is connected to the first LED circuit as the fourth terminal of the control circuit; pins 12 (P25), 13 (P27), and 14 (P24 / BOOT1) of control chip U4 are connected to the second LED circuit as the fifth terminal of the control circuit; pins 15 (XTAL_OUT) and 16 (XTAL_IN) of control chip U4 are connected to crystal oscillator Y1; pin 17 (RF) of control chip U4 is connected to the first filter circuit; pins 18 (DCDC_OUT), 19 (DCDC_SW), and 20 (VDD) of control chip U4 are connected to the second filter circuit.

[0108] In addition, the control chip U4 in Figure 6(a) also includes: pins P31, P26, NC, P15 / ADC4, P09, P10, SWD, SWC, DVDD, BOOT0, VDD_RF and RST_N for connecting to surrounding devices, which are not described in this application.

[0109] Further, as shown in Figure 6(b), its switching circuit includes: a first switch K1, a second switch K2, and a fourth resistor R4. The first terminal of the first switch K1 is connected to the first terminal of the second switch K2 and grounded; the second terminal of the first switch K1 is connected to the first terminal of the fourth resistor R4; the second terminal of the fourth resistor R4 is connected to the positive terminal +BAT of the battery; the second terminals of the second switch K2 and the second terminal of the first switch K1 together serve as the first terminal of the switching circuit and are connected to the third terminal of the control circuit.

[0110] Further, as shown in Figure 6(c), the first light-emitting diode circuit includes: a fifth resistor R5, a sixth resistor R6, and a second group of light-emitting diodes (LD3 and LD4); wherein, the anode of the second light-emitting diode is connected to the positive terminal +BAT of the battery; the first cathode of the second light-emitting diode is connected to the first end of the fifth resistor R5; the second cathode of the second light-emitting diode is connected to the first end of the sixth resistor R6; the second ends of the fifth resistor R5 and the second ends of the sixth resistor R6 are connected to the fourth terminal of the control circuit.

[0111] Furthermore, as shown in Figure 6(d), the second light-emitting diode circuit includes: resistors R26-R28 and light-emitting diodes LD6-LD8.

[0112] In addition, it also includes the download interface P3, as shown in Figure 6(e).

[0113] It should be noted that the first pin (P32) of the control chip U4 is labeled P_PWM; the second pin (P23 / ADC1) is labeled P_VOL; the third pin (P20 / ADC9) is labeled ADC1; the fourth pin (P00) is labeled P_VOL1; the fifth pin (P15 / ADC4) is labeled ADC2; the sixth pin (P11 / ADC0) is labeled ADC3; the seventh pin (P14 / ADC3) is labeled ADC0; the eighth pin (P01) is labeled KEY1; the ninth pin (P18) is labeled KTY2; the tenth pin (P33) is labeled LED_R; the eleventh pin (P34) is labeled LED_G; and the twelfth pin (… The corresponding identifier for pin P25 is LED_1; the corresponding identifier for pin thirteen (P27) is LED_2; the corresponding identifier for pin fourteen (P24 / BOOT1) is LED_3; the corresponding identifier for pin SWD is SWD; the corresponding identifier for pin SWC is SWC; the corresponding identifier for the second terminal of the second switch K2 is KTY2; the corresponding identifier for the second terminal of the first switch K1 is KEY1; the corresponding identifier for the second terminal of the fifth resistor R5 is LED_G; the corresponding identifier for the second terminal of the sixth resistor R6 is LED_R; the corresponding identifier for LED LD6 is LED_1; the corresponding identifier for LED LD7 is LED_2; the corresponding identifier for LED LD8 is LED_3; the corresponding identifier for the first pin of P3 is SWD; the corresponding identifier for the second pin of P3 is SWC.

[0114] It should also be noted that, Figure 4 - When the corresponding labels of pins or endpoints in Figure 6 are the same, it means that there is a connection between the two pins or endpoints.

[0115] The control chip U4, as the core of the microcontroller circuit 44, has multiple pin identifiers for connecting various external devices and modules. Control chip U4 connects to antenna-related circuits, including inductors and capacitors, to realize wireless communication functionality, enabling data transmission and interaction with other devices. The left side connects to radio frequency circuits for transmitting and receiving wireless data. The right side's switch control circuit, composed of resistors and other components, controls the circuit's on / off state as needed. The first / second LED circuit, composed of resistors and LEDs, indicates the system's operating status, such as power status and communication status.

[0116] It should be noted that there are other connection ports and components at the bottom, which interact with other modules and work together to ensure the normal operation of the entire system.

[0117] Therefore, the working process of the intelligent electrical stimulation decompression device provided in this application is as follows:

[0118] 1. When the user starts the device, the device detects the user's grip posture and automatically activates the corresponding ergonomic mode.

[0119] 2. When a person undergoing rehabilitation squeezes a flexible surface with four fingers, a pressure membrane detects a high-frequency pressure of 3Hz and an average pressure of 5N, which is determined to be an anxiety state.

[0120] 3. When an abnormal discharge of 200μV is detected in the trapezius muscle group, the linkage mechanism is triggered, and the electrical stimulation outputs a 4Hz low-frequency pulse, which is applied to the Hegu acupoint through the H-bridge circuit.

[0121] 4. Continuously monitor impedance changes. When skin sweating is detected (impedance drops to 1kΩ): dynamically reduce the output voltage to 30V.

[0122] 5. Data recording and optimization, uploading usage data to the cloud.

[0123] The intelligent electrical stimulation decompression device provided in this application solves the problems of limited effectiveness and poor user adaptability of a single decompression method through a dual mechanism of physical compression deformation feedback and adjustable low-frequency electrical stimulation. Furthermore, the multimodal sensing feedback circuit enables dynamic parameter adaptation, achieving precise decompression and electrical stimulation.

[0124] The intelligent electrical stimulation decompression device provided by this utility model has been described in detail above. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0125] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A smart electrical stimulation decompression device, comprising a decompression device, characterized in that, Also includes: Pressure sensor, electrodes, multimodal sensing feedback circuit and several rings; Among them, several of the ring-shaped objects are disposed on the outer surface of the decompression device to fix the position of the finger grasping the intelligent electrical stimulation decompression device; The pressure sensor is disposed on the inner surface of the decompression device and is used to detect the pressure gradient when the finger grasps the decompression device; The electrodes are fixed to the outer surface of the decompression device and are used to send electrode stimulation to the contacting finger and collect electromyographic signals of the epidermis to determine the corresponding muscle tension. The multimodal sensing feedback circuit is connected to the pressure sensor and the electrode, and is used to send a corresponding electrode stimulation level signal to the electrode according to the pressure gradient and the muscle tension.

2. The intelligent electrical stimulation decompression device according to claim 1, characterized in that, The pressure sensor is a capacitive pressure sensing film, which covers the compression contact area on the inner surface of the decompression device.

3. The intelligent electrical stimulation decompression device according to claim 1, characterized in that, The multimodal sensing feedback circuit includes: a power supply circuit, a power management circuit, a boost control circuit, a microcontroller circuit, an intensity detection circuit, and an electrical stimulation circuit; Wherein, the first end of the power supply circuit is connected to the first end of the power management circuit, and the second end of the power supply circuit is connected to the first end of the microcontroller circuit, for outputting a first preset voltage to the power management circuit, and providing a second preset voltage to the microcontroller circuit after voltage stabilization; The first terminal of the boost control circuit is connected to the second terminal of the power management circuit, the second terminal of the boost control circuit is connected to the second terminal of the microcontroller circuit, and the third terminal of the boost control circuit is connected to the first terminal of the electrical stimulation circuit, for outputting a third preset voltage to the electrical stimulation circuit. The first terminal of the intensity detection circuit is connected to the pressure sensor and the electrode, and the second terminal of the intensity detection circuit is connected to the third terminal of the microcontroller circuit, for acquiring the pressure gradient and the muscle tension. The fourth terminal of the microcontroller circuit is connected to the second terminal of the electrical stimulation circuit, and the third terminal of the electrical stimulation circuit is connected to the electrode, for sending the corresponding electrode stimulation level signal to the electrode according to the pressure gradient and the muscle tension.

4. The intelligent electrical stimulation decompression device according to claim 3, characterized in that, The power supply circuit includes: a first transistor circuit, a second transistor circuit, a third transistor circuit, a fourth transistor circuit, an optocoupler switch, a first voltage regulator circuit, and a second voltage regulator circuit. The first pin of the optocoupler switch is connected to the first terminal of the first transistor circuit; The second and third pins of the optocoupler switch are respectively connected to the first and second terminals of the first voltage regulator circuit. The fourth pin of the optocoupler switch is connected to the first terminal of the second transistor circuit and the first terminal of the second voltage regulator circuit. The fifth and sixth pins of the optocoupler switch are connected to the positive and negative terminals of the electrodes, respectively. The second and third terminals of the second transistor circuit are respectively connected to the first terminal of the third transistor circuit and the first terminal of the fourth transistor circuit; The second terminal of the first transistor circuit, the third terminal of the first voltage regulator circuit, the second terminal of the second voltage regulator circuit, the second terminal of the third transistor circuit, and the second terminal of the fourth transistor circuit together serve as the second terminal of the power supply circuit and are connected to the first terminal of the microcontroller circuit. The fourth terminal of the fourth transistor circuit is connected to the positive terminal of the battery.

5. The intelligent electrical stimulation decompression device according to claim 3, characterized in that, The power management circuit includes: an interface voltage divider circuit, a management circuit, an auxiliary circuit, and a status indicator circuit; The first terminal of the interface voltage divider circuit and the first terminal of the status indicator circuit are connected to the microcontroller circuit. The second terminal of the interface voltage divider circuit is connected to the first terminal of the management circuit, and both are connected to the first preset power supply. The third and fourth terminals of the interface voltage divider circuit are respectively connected to the positive and negative terminals of the electrode; The second and third terminals of the management circuit, the first and second terminals of the auxiliary circuit, and the second terminal of the status indicator circuit are all connected to the positive terminal of the battery. The third terminal of the auxiliary circuit is connected to the second preset power supply.

6. The intelligent electrical stimulation decompression device according to claim 5, characterized in that, The management circuit includes: a management chip, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, and a first group of light-emitting diodes; The first pin of the management chip is connected to the first terminal of the first capacitor, and serves as the second terminal of the management circuit, which is connected to the positive terminal of the battery. The second pin of the management chip is connected to the first end of the second capacitor, and together they serve as the first end of the management circuit, which is connected to the second end of the interface voltage divider circuit and the first preset power supply. The third pin of the management chip is connected to the first end of the first resistor; The fourth pin of the management chip is connected to the first end of the second resistor; The fifth pin of the management chip is connected to the first end of the third resistor; The second end of the first resistor is connected to the first cathode of the first light-emitting diode group; The anode of the first group of light-emitting diodes is connected to the positive terminal of the battery as the third terminal of the management circuit; The second cathode of the first light-emitting diode group is connected to the second terminal of the second resistor; The sixth pin of the management chip, the second terminal of the first capacitor, the second terminal of the second capacitor, and the second terminal of the third resistor are grounded.

7. The intelligent electrical stimulation decompression device according to claim 4, characterized in that, The microcontroller circuit includes: a control circuit, a switching circuit, a first light-emitting diode circuit, and a second light-emitting diode circuit. Wherein, the first terminal of the control circuit is connected to the second terminal of the power supply circuit as the first terminal of the microcontroller circuit; The second terminal of the control circuit is connected to the third terminal of the power management circuit; The third, fourth, and fifth terminals of the control circuit are respectively connected to the switching circuit, the first LED circuit, and the second LED circuit.

8. The intelligent electrical stimulation decompression device according to claim 7, characterized in that, The control circuit includes: a control chip, a crystal oscillator, a first filter circuit, and a second filter circuit; The first, second, third, fourth, and fifth pins of the control chip together serve as the first terminal of the control circuit and are connected to the second terminal of the power supply circuit. The sixth and seventh pins of the control chip are connected to the third pin of the power management circuit as the second terminal of the control circuit. The eighth and ninth pins of the control chip are connected to the switching circuit as the third terminal of the control circuit. The tenth and eleventh pins of the control chip are connected to the first light-emitting diode circuit as the fourth terminal of the control circuit. The twelfth, thirteenth, and fourteenth pins of the control chip are connected to the second light-emitting diode circuit as the fifth terminal of the control circuit. The fifteenth and sixteenth pins of the control chip are connected to the crystal oscillator; The seventeenth pin of the control chip is connected to the first filter circuit. The eighteenth, nineteenth, and twentieth pins of the control chip are connected to the second filter circuit.

9. The intelligent electrical stimulation decompression device according to claim 7, characterized in that, The switching circuit includes: a first switch, a second switch, and a fourth resistor; Wherein, the first terminal of the first switch is connected to the first terminal of the second switch and grounded; The second terminal of the first switch is connected to the first terminal of the fourth resistor; The second end of the fourth resistor is connected to the positive terminal of the battery; The second terminal of the second switch and the second terminal of the first switch together serve as the first terminal of the switching circuit and are connected to the third terminal of the control circuit.

10. The intelligent electrical stimulation decompression device according to claim 7, characterized in that, The first LED circuit includes: a fifth resistor, a sixth resistor, and a second LED group; The anode of the second light-emitting diode is connected to the positive terminal of the battery; The first cathode of the second light-emitting diode is connected to the first terminal of the fifth resistor; The second cathode of the second light-emitting diode is connected to the first terminal of the sixth resistor; The second end of the fifth resistor and the second end of the sixth resistor are both connected to the fourth end of the control circuit.

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