A multi-parameter adjustable multi-channel electrical stimulation waveform generation device

Abstract

This invention relates to the field of medical device technology, specifically to a multi-parameter adjustable multi-channel electrical stimulation waveform generation device, comprising a main unit, a multi-channel electrode unit, a multi-channel connection component mounted on the portable main unit, and electrode components mounted on the multi-channel connection component. By adopting a multi-channel integrated structural design and a portable wearable layout, the device improves ease of use and applicability. The use of independent multi-channel output and unified timing synchronization control enhances treatment and training efficiency. Independent and continuous adjustable control of the three key parameters—stimulation frequency, pulse width, and amplitude—improves treatment adaptability and effectiveness. Closed-loop negative feedback constant current output control enhances safety and stimulation reliability. The magnetic quick-connect structure and multi-channel signal distribution method ensure pure and stable stimulation output, further improving device safety and treatment efficacy.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a multi-channel electrical stimulation waveform generation device with adjustable parameters. Background Technology

[0002] Functional electrical stimulation (FES) is a key technology in rehabilitation medicine, neuroscience research and pain management. By applying electrical stimulation waveforms with specific parameters to human neuromuscular tissue, it can induce muscle contraction, reconstruct limb motor function or achieve neuromodulation therapy. It is widely used in scenarios such as stroke rehabilitation, spinal cord injury repair and chronic pain relief. Currently, most traditional electrical stimulation waveform generation devices adopt a single-channel or dual-channel structure design. However, this makes it difficult to simultaneously stimulate multiple muscle groups and multiple treatment targets, failing to meet the clinical needs of complex limb movement coordination training and multi-site combined treatment. Moreover, most devices only support fixed parameters or single parameter adjustment, and core treatment parameters such as stimulation frequency, pulse width, and output amplitude cannot be independently controlled in real time. This makes it difficult to formulate personalized and precise treatment plans for different patients and different treatment sites, thus limiting the treatment effect. In the few multi-channel devices, the devices generally adopt a parallel combination of multiple independent single-channel modules. Without a complete unified clock source and synchronous control mechanism, timing offsets and errors are prone to occur between channels, affecting the multi-target synergistic stimulation effect. In terms of output performance, traditional devices mostly adopt a simple voltage drive mode without a complete constant current control structure. When the contact impedance between the electrode and the skin fluctuates within the range of 1kΩ–10kΩ, the actual output current is prone to deviate from the set value, which not only causes unstable stimulation intensity but also poses safety hazards such as overstimulation and skin burns. In view of this, we propose a multi-parameter adjustable multi-channel electrical stimulation waveform generation device. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a multi-channel electrical stimulation waveform generation device with adjustable parameters, which can effectively solve the problems of insufficient channel quantity, limited parameter adjustment, poor multi-channel synchronization, unstable constant current output, and poor portability in existing technologies.

[0004] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a multi-parameter adjustable multi-channel electrical stimulation waveform generation device, including a main unit, including a portable host body, and a fixing strap disposed on the portable host body for wearing and fixing. A multi-channel electrode unit includes a multi-channel connection component disposed on a portable host body, and an electrode component disposed on the multi-channel connection component. The multi-channel connection component is used to electrically connect the electrode component to the portable host body. The portable host unit integrates a main control and display module, an electric field generation and constant current control module, a multi-channel output and electrode interface module, and a power supply module. The main control and display module is used for parameter setting, status display, and overall control. The electric field generation and constant current control module is used to generate stimulation waveforms and achieve closed-loop constant current output. The multi-channel output and electrode interface module is used to distribute the electrical stimulation signal to multiple channels and output it to the electrode assembly. The power supply module is used to provide power to the entire unit.

[0005] Furthermore, the multi-channel connection component includes a magnetic interface fixedly connected inside the portable host body, a magnetic plug inserted into the inner wall of the magnetic interface, and an integrated terminal block fixedly connected to the end of the magnetic plug away from the magnetic interface, for realizing the electrical connection between the integrated terminal block and the portable host body.

[0006] Furthermore, the stimulation output terminal of the integrated terminal block is electrically connected to a first connecting wire harness and multiple sets of second connecting wire harnesses. The multiple sets of second connecting wire harnesses are used to connect to the electrode assembly, and one end of the first connecting wire harness is also used to connect to the electrode assembly via a power supply head.

[0007] Furthermore, the integrated terminal block reference output terminal is electrically connected to the connecting harness three used to connect the reference electrode and the ground electrode, providing a potential reference and anti-interference guarantee for the electrical stimulation output.

[0008] Furthermore, the electrode assembly includes a wrist electrode pad electrically connected to the stimulation output end of the integrated terminal block via a power supply head, and a finger electrode electrically connected to the stimulation output end of the integrated terminal block via multiple sets of connecting wire harnesses.

[0009] Furthermore, the electric field generation and constant current control module includes a dual MCU control unit, a DAC waveform generation unit, an analog switching switch, and a closed-loop negative feedback constant current circuit, which are used to realize multi-channel waveform output and constant current stable control.

[0010] Furthermore, the frequency, pulse width, and amplitude of the device are independently and continuously adjustable, and the output current range is 1mA-40mA with a current deviation of less than ±5%.

[0011] Furthermore, the portable host body is equipped with an overcurrent protection circuit and an impedance monitoring unit, which are used to automatically trigger protection and alarm when the electrode falls off or the output is abnormal.

[0012] Furthermore, the multi-channel output and electrode interface module is a multi-channel independent synchronous output structure, with each channel parameter being independently adjustable and timing synchronously controlled.

[0013] Furthermore, the device operates automatically according to the process of power-on initialization, parameter setting, electrode detection, waveform generation, constant current calibration, multi-channel output, real-time monitoring, and shutdown upon completion of treatment.

[0014] The technical solution provided by this invention has the following advantages compared with known public technologies: This invention simplifies the connection and wearing process by adopting a multi-channel integrated structure design and a portable wearable layout, achieving miniaturization and lightweighting of the device. This makes the device suitable for various rehabilitation scenarios such as home, community, and bedside, improving ease of use and applicability. It also adopts a multi-channel independent output and unified timing synchronous control method to achieve synchronous and coordinated stimulation of multiple target points and multiple muscle groups, which can meet the needs of complex limb rehabilitation training and improve treatment and training efficiency. The three key parameters of stimulation frequency, pulse width, and amplitude are independently and continuously adjustable, allowing for flexible customization of treatment plans according to different patients and different parts of the body, achieving precise and personalized electrical stimulation output, and improving treatment adaptability and effectiveness. By employing closed-loop negative feedback constant current output control, output fluctuations caused by changes in electrode-skin contact impedance are compensated in real time, ensuring highly stable output current. This effectively avoids problems such as unstable stimulation intensity, overstimulation, or understimulation, improving safety and reliability. A magnetic quick-connect structure and multi-channel signal distribution method enable rapid assembly and disassembly of electrode components and stable conduction. Combined with reference and ground electrodes, signal anti-interference capabilities are enhanced, ensuring pure and stable stimulation output. Overcurrent protection, impedance monitoring, and abnormal alarm mechanisms are implemented, automatically triggering protection in case of electrode detachment, poor contact, or output overload, further improving equipment safety and therapeutic efficacy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 This is a schematic diagram showing the disassembled structure of the magnetic plug and magnetic interface of the present invention; Figure 4 This is a schematic diagram of the overall architecture modules of the present invention; Figure 5This is a schematic diagram of the core module for generating and controlling the electric field of the present invention; Figure 6 This is a schematic diagram of the treatment process of the present invention.

[0017] The labels in the diagram represent: 100, main unit; 101, portable main unit; 102, fixing strap; 200. Multi-channel electrode unit; 201. Multi-channel connection assembly; 2011. Power connector; 2012. Connection harness one; 2013. Integrated terminal block; 2014. Connection harness two; 2015. Magnetic plug; 2016. Magnetic interface; 2017. Connection harness three; 202. Electrode assembly; 2021. Wrist electrode plate; 2022. Finger electrode. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to embodiments.

[0020] like Figures 1 to 6As shown, a multi-parameter adjustable multi-channel electrical stimulation waveform generation device includes a main unit 100, comprising a portable host body 101 and a fixing strap 102 disposed on the portable host body 101 for wear fixation, and a multi-channel electrode unit 200, comprising a multi-channel connection component 201 disposed on the portable host body 101 and an electrode component 202 disposed on the multi-channel connection component 201. The multi-channel connection component 201 is used to electrically connect the electrode component 202 to the portable host body 101. The portable host body 101 integrates a main control and display module, an electric field generation and constant current control module, a multi-channel output and electrode interface module, and a power supply module. The main control and display module is used for parameter setting. The system includes a setting, status display, and overall control module; an electric field generation and constant current control module for generating stimulation waveforms and achieving closed-loop constant current output; a multi-channel output and electrode interface module for distributing electrical stimulation signals to multiple channels and outputting them to the electrode assembly 202; and a power supply module for providing power to the entire device. The main unit 100 includes a portable host body 101 and a fixing strap 102. The fixing strap 102 is mounted on the portable host body 101 and is used to wear and fix the entire device to a human limb. The multi-channel electrode unit 200 includes a multi-channel connection component 201 and an electrode assembly 202. The multi-channel connection component 201 is mounted on the portable host body 101 and is used to electrically connect the electrode assembly 202 to the portable host body 101. It should be noted that the portable host body 101 integrates a main control and display module, an electric field generation and constant current control module, a multi-channel output and electrode interface module, and a power supply module. The main control and display module is used to set treatment parameters, display working status, and control the logic of the whole machine. The electric field generation and constant current control module is used to generate the set electrical stimulation waveform and complete the closed-loop constant current output control. The multi-channel output and electrode interface module is used to distribute the electrical stimulation signal to multiple output channels and transmit it to the electrode assembly 202. The power supply module is used to provide a stable working power for all modules of the whole machine. Specifically, refer to Figures 1 to 3The multi-channel connection assembly 201 includes a magnetic interface 2016 fixedly connected inside the portable host body 101. A magnetic plug 2015 is inserted into the inner wall of the magnetic interface 2016. An integrated terminal block 2013 is fixedly connected to the end of the magnetic plug 2015 away from the magnetic interface 2016, which is used to realize the electrical connection between the integrated terminal block 2013 and the portable host body 101. The stimulation output end of the integrated terminal block 2013 is electrically connected to a first connecting wire harness 2012 and multiple sets of second connecting wire harnesses 2014. The multiple sets of second connecting wire harnesses 2014 are used to connect to the electrode assembly 202. One end of the first connecting wire harness 2012 passes through... The power connector 2011 is also used to connect to the electrode assembly 202. The reference output terminal of the integrated terminal block 2013 is electrically connected to the connection harness 3 2017 used to connect the reference electrode and the ground electrode, providing a potential reference and anti-interference guarantee for the electrical stimulation output. The magnetic interface 2016 is fixedly connected inside the portable host body 101. The magnetic plug 2015 is detachably plugged into the magnetic interface 2016. The end of the magnetic plug 2015 away from the magnetic interface 2016 is fixedly connected to the integrated terminal block 2013, thereby realizing a quick electrical connection between the integrated terminal block 2013 and the internal circuit of the portable host body 101. It should be noted that the stimulation output terminal of the integrated terminal block 2013 is electrically connected to a first connecting wire harness 2012 and multiple sets of second connecting wire harnesses 2014. The first connecting wire harness 2012 and multiple sets of second connecting wire harnesses 2014 are used to transmit the stimulation signal to the electrode assembly 202. The reference output terminal of the integrated terminal block 2013 is electrically connected to a third connecting wire harness 2017. The third connecting wire harness 2017 is used to connect an external reference electrode and a ground electrode, providing a stable potential reference for the overall electrical stimulation output and improving the signal anti-interference capability. Specifically, refer to Figures 1 to 3 The electrode assembly 202 includes a wrist electrode 2021 electrically connected to the stimulation output end of the integrated terminal block 2013 via a power head 2011, and a finger electrode 2022 electrically connected to the stimulation output end of the integrated terminal block 2013 via multiple sets of connecting harnesses 2014. The wrist electrode 2021 is electrically connected to the stimulation output end of the integrated terminal block 2013 via connecting harness 2012 and is used to conform to the skin of the wrist to achieve electrical stimulation output. The finger electrode 2022 is electrically connected to the stimulation output end of the integrated terminal block 2013 via multiple sets of connecting harnesses 2014 and is used to be worn on the finger to achieve multi-target synchronous electrical stimulation. Specifically, refer to Figures 4 to 6The electric field generation and constant current control module includes a dual MCU control unit, a DAC waveform generation unit, an analog switching switch, and a closed-loop negative feedback constant current circuit, used to realize multi-channel waveform output and constant current stability control; the dual MCU control unit is responsible for waveform timing generation and whole-machine instruction parsing; the DAC waveform generation unit converts digital signals into high-precision analog voltage waveforms; the analog switching switch distributes single-channel waveforms to multiple output channels according to timing; the closed-loop negative feedback constant current circuit collects output current in real time and dynamically adjusts it to ensure stable output current under different loads, realizing multi-channel independent waveform output and constant current control; Specifically, refer to Figures 4 to 6 The device's frequency, pulse width, and amplitude stimulation parameters are independently and continuously adjustable, with an output current range of 1mA-40mA and a current deviation of less than ±5%. The device can independently and continuously adjust the three key parameters of electrical stimulation: frequency, pulse width, and amplitude. The output current range is set to 1mA-40mA. Under closed-loop constant current control, the actual output current deviates from the set value by less than ±5%, which can adapt to the precise rehabilitation stimulation needs of different individuals and different parts of the body. Specifically, refer to Figures 4 to 6 The portable host body 101 is equipped with an overcurrent protection circuit and an impedance monitoring unit, which are used to automatically trigger protection and alarm when the electrode falls off or the output is abnormal. The impedance monitoring unit detects the contact impedance between the electrode and the skin in real time. When the electrode falls off, poor contact occurs or the output is overloaded, the overcurrent protection circuit immediately cuts off the dangerous output and triggers the alarm, improving the safety of use. Specifically, refer to Figures 4 to 6 The multi-channel output and electrode interface module has a multi-channel independent synchronous output structure, with each channel parameter being independently adjustable and timing synchronously controlled. The multi-channel output and electrode interface module adopts a multi-channel independent synchronous output structure, with each channel stimulation parameter being independently adjustable and timing synchronously controlled by a unified clock source, ensuring precise and consistent timing when stimulating multiple muscle groups and multiple target points in a coordinated manner, thereby improving the rehabilitation training effect. Specifically, refer to Figures 4 to 6 The device operates automatically according to the following process: power-on initialization, parameter setting, electrode detection, waveform generation, constant current calibration, multi-channel output, real-time monitoring, and shutdown upon treatment completion. The device operates automatically according to the preset process. After powering on, it first completes system initialization and then enters the parameter setting interface. After parameter confirmation, it performs electrode connection and wearing detection. After the detection is normal, it starts waveform generation and constant current calibration. After calibration, it enters the multi-channel synchronous stimulation output state. During operation, it monitors the output status and impedance information in real time. After the treatment time reaches the set value, it automatically stops the output and shuts down, completing one treatment cycle.

[0021] The working principle of this invention: The device uses the portable host body 101 as the overall control core, which integrates a main control and display module, an electric field generation and constant current control module, a multi-channel output and electrode interface module, and a power supply module. Externally, it realizes stable transmission and reliable output of electrical signals through the multi-channel connection component 201 and the electrode component 202, forming a complete closed-loop working system from command input, waveform generation, constant current regulation, multi-channel distribution, human stimulation, real-time feedback to safety protection. The overall operation is stable and reliable, with rapid response and high control accuracy. The main control and display module is responsible for receiving the stimulation parameters set by the user, including information such as stimulation frequency, pulse width, output amplitude and treatment duration, and stably transmitting the relevant parameters to the electric field generation and constant current control module. The electric field generation and constant current control module adopts dual MCU control units to work together. The main MCU undertakes upper-level tasks such as parameter parsing, human-computer interaction, overall timing management and safety protection logic judgment. The slave MCU is specifically responsible for generating high-precision real-time waveform sequences. It maintains data interaction with the main MCU through the SPI communication interface and controls the DAC waveform generation unit in real time to complete the conversion of digital signals to analog signals, ensuring the timing accuracy and synchronization of waveform output. The DAC waveform generation unit can stably convert digital instructions into high-precision, low-noise analog voltage waveforms. The frequency, pulse width, and amplitude of the waveform can be dynamically adjusted in real time according to the instructions, realizing independent and continuous adjustment of the three key parameters. After the generated analog waveform is sent to the analog switching switch, it is switched at high speed according to the preset timing under the control of a unified clock source, and the single waveform is evenly distributed to multiple output channels, realizing multi-channel synchronous, independent waveform output without obvious delay, effectively improving the problems of large timing errors and poor synchronization between channels in traditional multi-channel equipment. After the waveform signal enters the closed-loop negative feedback constant current circuit, it is converted into a stable and controllable current signal through the improved Howland current pump architecture. The actual output current is collected in real time by a high-precision low-temperature drift sampling resistor inside the circuit. After the current signal is extracted by the instrumentation amplifier, it is sent to the error amplifier for comparison and calculation with the set current value. The error signal dynamically adjusts the output amplitude of the power drive unit and automatically compensates for the current deviation caused by the fluctuation of the electrode-skin contact impedance in the range of 1kΩ to 10kΩ. This keeps the deviation between the actual output current and the set value within ±5%, achieving a continuously adjustable and stable constant current output in the range of 1mA to 40mA. This avoids insufficient or excessive stimulation intensity due to changes in skin impedance, and significantly improves the safety and effectiveness of electrical stimulation therapy. The multi-channel output and electrode interface module stably transmits multiple constant current stimulation signals to the magnetic interface 2016. The magnetic plug 2015 enables quick docking and reliable conductivity. The magnetic connection structure is easy to install and remove and provides stable contact, meeting the needs of daily portable use and quick connection. After the signal is magnetically connected, it is transmitted to the integrated terminal block 2013. The integrated terminal block 2013 distributes the multiple stimulation signals to the first connection harness 2012 and multiple sets of second connection harnesses 2014. At the same time, the third connection harness 2017 is connected to the reference electrode and the ground electrode through the reference output terminal, providing a stable potential reference for the entire electrical stimulation output system, effectively reducing external electromagnetic interference and improving the purity and output stability of the stimulation signal. The wrist electrode 2021 in the electrode assembly 202 receives stimulation signals through the connecting wire harness 1 2012 and closely adheres to the skin of the wrist to apply the electrical stimulation signals to the target nerve and muscle tissue. The finger electrode 2022 receives stimulation signals through multiple sets of connecting wire harness 2 2014 and is fitted on the finger to achieve multi-point synchronous stimulation output. After the electrical signal enters the human tissue through the skin, it can stimulate nerve fiber depolarization, thereby inducing muscle contraction or producing a neuromodulation effect, achieving the therapeutic purpose of limb rehabilitation training, motor function reconstruction or pain relief. The multi-channel synchronous independent output can support multi-muscle group and multi-joint synergistic stimulation, meeting the needs of complex rehabilitation movement synergistic training and multi-site synchronous treatment. The portable host body 101 is equipped with an overcurrent protection circuit and an impedance monitoring unit. The impedance monitoring unit detects the electrode contact status, skin contact impedance and output current status in real time. The overcurrent protection circuit monitors the output for any abnormalities in real time. When the system detects electrode detachment, poor contact, output overload, short circuit or excessive output current, it will immediately and automatically cut off the stimulation output and trigger the corresponding alarm mechanism. At the same time, it will pause the treatment process to prevent safety risks such as electric shock and burns, and fully protect the user's safety. After the device is powered on, it automatically completes system hardware self-test, initialization of each functional module, clock calibration and parameter reset, and enters standby mode. The main control and display modules display the device's operating status and default parameters in real time. Users can set and adjust parameters such as stimulation frequency, pulse width, amplitude, channel selection and treatment time through the operation interface. After the parameters are confirmed, the system enters the wearing detection stage. The user fixes the portable host body 101 to the wrist with the fixing strap 102, and attaches the wrist electrode 2021 and the finger electrode 2022 to the target skin position. After the magnetic interface is connected to the magnetic interface, the system automatically detects the electrode connection status, contact impedance and wearing standard. In case of abnormality, a prompt message is given. After the detection is normal, the treatment start stage is entered. After the system starts up, the dual MCU control unit enters the working state, the DAC waveform generation unit generates the corresponding electrical stimulation waveform according to the set parameters, the analog switching switch completes the multi-channel signal distribution, the closed-loop negative feedback constant current circuit automatically completes the output current calibration, so that the output quickly stabilizes to the set value. After calibration, the multi-channel stimulation signals are synchronously output to the wrist electrode 2021 and the finger cot electrode 2022, and enter a continuous and stable multi-channel synchronous stimulation output state. During treatment, the system continuously monitors key states such as output current, electrode impedance, and power supply voltage. It dynamically adjusts the output intensity based on real-time changes in skin impedance to maintain a constant and reliable stimulation intensity. Users can adjust the intensity according to their own experience during treatment.

[0022] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-parameter adjustable multi-channel electrical stimulation waveform generation device, characterized by, It includes a main unit (100), a portable host main body (101), and a fixing strap (102) disposed on the portable host main body (101) for wearing and fixing. The multi-channel electrode unit (200) includes a multi-channel connection component (201) disposed on the portable host body (101) and an electrode component (202) disposed on the multi-channel connection component (201). The multi-channel connection component (201) is used to electrically connect the electrode component (202) to the portable host body (101). The portable host body (101) integrates a main control and display module, an electric field generation and constant current control module, a multi-channel output and electrode interface module, and a power supply module. The main control and display module is used for parameter setting, status display and whole machine control. The electric field generation and constant current control module is used to generate stimulation waveforms and realize closed-loop constant current output. The multi-channel output and electrode interface module is used to distribute the electric stimulation signal to multiple channels and output it to the electrode assembly (202). The power supply module is used to provide power to the whole machine.

2. A multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The multi-channel connection assembly (201) includes a magnetic interface (2016) fixedly connected inside the portable host body (101), a magnetic plug (2015) inserted into the inner wall of the magnetic interface (2016), and an integrated terminal block (2013) fixedly connected to the end of the magnetic plug (2015) away from the magnetic interface (2016) for realizing the electrical connection between the integrated terminal block (2013) and the portable host body (101).

3. A multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 2, characterized in that, The stimulation output end of the integrated terminal block (2013) is electrically connected to a first connecting wire harness (2012) and multiple sets of second connecting wire harnesses (2014). The multiple sets of second connecting wire harnesses (2014) are used to connect to the electrode assembly (202). One end of the first connecting wire harness (2012) is also used to connect to the electrode assembly (202) through a power supply head (2011).

4. A multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 2, characterized in that, The integrated terminal block (2013) is electrically connected to the reference output terminal of the connection harness three (2017) used to connect the reference electrode and the ground electrode, providing a potential reference and anti-interference guarantee for the electrical stimulation output.

5. A multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The electrode assembly (202) includes a wrist electrode (2021) electrically connected to the stimulation output end of the integrated terminal block (2013) via a power head (2011) and a finger electrode (2022) electrically connected to the stimulation output end of the integrated terminal block (2013) via multiple sets of connecting wire harnesses (2014).

6. The multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The electric field generation and constant current control module includes a dual MCU control unit, a DAC waveform generation unit, an analog switching switch, and a closed-loop negative feedback constant current circuit, which are used to realize multi-channel waveform output and constant current stable control.

7. The multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The frequency, pulse width, and amplitude of the device are independently and continuously adjustable, and the output current range is 1mA-40mA with a current deviation of less than ±5%.

8. The multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The portable host body (101) is equipped with an overcurrent protection circuit and an impedance monitoring unit, which are used to automatically trigger protection and alarm when the electrode falls off or the output is abnormal.

9. The multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The multi-channel output and electrode interface module is a multi-channel independent synchronous output structure, with each channel parameter being independently adjustable and timing synchronously controlled.

10. A multi-parameter adjustable multi-channel electrical stimulation waveform generation device according to claim 1, characterized in that, The device operates automatically according to the process of power-on initialization, parameter setting, electrode detection, waveform generation, constant current calibration, multi-channel output, real-time monitoring, and shutdown upon completion of treatment.

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