A stimulation and collection device

Abstract

A stimulation and acquisition device mainly includes a main unit, an adapter, and an electrode array. The electrode array consists of multi-point flexible electrodes in gel form, used for non-invasive bioelectrical acquisition and electrical stimulation of the body surface. The adapter is used for signal transmission between the main unit and the electrode array. The main unit mainly includes a central controller, a signal acquisition module, a channel configuration module, and an electrical stimulation module. This invention acquires and analyzes the bioelectrical signals of the human body by selecting designated acquisition electrodes. The acquisition electrodes that transmit the most significant or least significant bioelectrical signals are identified as target electrodes, thereby obtaining the optimal stimulation electrode configuration to achieve better rehabilitation or treatment effects. Furthermore, based on the structural advantages of the electrode array, appropriate electrodes can be selected near the stimulation electrodes as acquisition electrodes, or the acquisition electrodes and stimulation electrodes can be time-divisionally reused, thereby providing better electrical stimulation feedback.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation technology, specifically to a stimulation and acquisition device. Background Technology

[0002] In the field of medical rehabilitation, electrical stimulation is a routine method, including limb electrical stimulation, nerve electrical stimulation, and so on. Current electrical stimulation technologies simply output electrical stimulation. Therefore, simultaneously collecting and analyzing bioelectrical signals can reflect the effects of electrical stimulation to varying degrees, providing scientifically sound stimulation feedback, which is crucial for improving and optimizing electrical stimulation. This is the core technology that needs to be addressed. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, the purpose of this invention is to provide a stimulation and acquisition device that, by selecting designated acquisition electrodes, collects and analyzes the bioelectrical signals of the human body, and determines the acquisition electrodes that transmit the most significant or least significant bioelectrical signals as target electrodes, thereby obtaining the optimal configuration of stimulation electrodes to achieve better rehabilitation or treatment effects. Furthermore, based on the structural advantages of the electrode array, appropriate electrodes can be selected as acquisition electrodes near the stimulation electrodes, or the acquisition electrodes and stimulation electrodes can be time-divisionally multiplexed to provide better electrical stimulation feedback.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: the stimulation and acquisition device mainly includes a host, an adapter, and an electrode array. The electrode array is a multi-point flexible electrode in the form of gel, including acquisition electrodes and stimulation electrodes. The acquisition electrodes are used for non-invasive bioelectrical acquisition of the human body surface, and the stimulation electrodes are used for non-invasive electrical stimulation of the human body surface. The acquisition electrodes and the stimulation electrodes can be the same electrode or different electrodes. The adapter is used for signal transmission between the host and the electrode array.

[0005] The host mainly includes a central controller, a signal acquisition module, a channel configuration module, and an electrical stimulation module; the signal acquisition module is used to transmit the bioelectrical signals acquired by the acquisition electrodes through the adapter to the central controller;

[0006] The central controller is used to generate a acquisition control channel signal and transmit it to the channel configuration module to control the channel configuration module to select and switch the designated acquisition electrodes to acquire the bioelectric signals. By analyzing the bioelectric signals, the acquisition electrodes that transmit the most significant or least significant bioelectric signals are determined as the target electrodes, thereby obtaining the optimal configuration of the stimulation electrodes. The central controller then generates a stimulation control channel signal and transmits it to the channel configuration module, and transmits an electrical stimulation signal to the electrical stimulation module.

[0007] The channel configuration module is used to select and switch the electrode array through the adapter interface according to the acquisition control channel signal generated by the central controller, that is, to select and switch the specified acquisition electrode for bioelectric acquisition, and to select and switch the electrode array through the adapter interface according to the stimulation control channel signal generated by the central controller, that is, to select and switch the specified stimulation electrode to output the electrical stimulation signal.

[0008] The electrical stimulation module is used to transmit the electrical stimulation signal generated by the central controller to the stimulation electrode through the adapter after voltage stabilization, amplification and filtering.

[0009] The central controller is electrically connected to the signal acquisition module, the channel configuration module, and the electrical stimulation module, respectively. The host is connected to the adapter via a connecting cable, and the adapter is connected to each acquisition electrode and each stimulation electrode via a flexible flat cable.

[0010] The electrode array can also be in the form of a thin film, foam, fiber, paper-based, or financial network.

[0011] The working principle of the stimulation and acquisition device is as follows:

[0012] Step 1: Based on the subject's condition, determine the target area for attaching the electrode array, clean the skin surface, and attach the electrode array to the target area; ensure good contact between the electrode array and the skin;

[0013] Step 2: The central controller generates acquisition control channel signals and transmits them to the channel configuration module. The control channel configuration module selects and switches the designated acquisition electrodes to acquire bioelectric signals.

[0014] Step 3: The acquisition electrode transmits the acquired bioelectric signals to the signal acquisition module through the adapter. The signal acquisition module then performs analog-to-digital conversion on the bioelectric signals and transmits them to the central controller. The central controller analyzes the bioelectric signals to determine the acquisition electrode that transmits the most or least significant bioelectric signals as the target electrode. This yields the optimal stimulation electrode configuration, generates a stimulation control channel signal which is transmitted to the channel configuration module, and transmits an electrical stimulation signal to the electrical stimulation module.

[0015] Step 4: The channel configuration module selects and switches the specified stimulation electrode output from the electrical stimulation module according to the stimulation control channel signal;

[0016] Step 5: After the electrical stimulation signal is applied to the target area of ​​the subject through the stimulation electrodes, the target area of ​​the subject is stimulated to generate a bioelectrical signal;

[0017] The second to fifth steps above are repeated continuously. In this way, the optimal configuration of stimulation electrodes is obtained, which achieves better rehabilitation or treatment results. Furthermore, based on the structural advantages of the electrode array, appropriate electrodes are selected as acquisition electrodes near the stimulation electrodes, or the acquisition electrodes and stimulation electrodes are reused in a time-sharing manner, thereby providing better electrical stimulation feedback.

[0018] Furthermore, the central controller mainly includes a microcontroller U7 and a crystal oscillator Y1; the microcontroller U7 is an STM32F103VET6, a 32-bit high-density high-performance line microcontroller unit with 512kB of flash memory; the crystal oscillator Y1 is used to provide an external clock for the microcontroller U7.

[0019] Furthermore, the signal acquisition module mainly includes an analog-to-digital converter U26, an amplifier U25, and a crystal oscillator Y2; the analog-to-digital converter U26 is used to detect the bioelectric signal and perform analog-to-digital conversion on the bioelectric signal to transmit it to the central controller, the amplifier U25 is used to amplify and filter the bioelectric signal, and the crystal oscillator Y2 is used to provide an external clock for the analog-to-digital converter U26.

[0020] Furthermore, the channel configuration module mainly includes a digital-to-analog converter U10 and a crystal oscillator Y3; the digital-to-analog converter U10 is used to convert the acquisition control channel signal and the stimulation control channel signal generated by the central controller into analog signals and transmit them to the electrode array through the adapter interface, so as to select and switch the specified acquisition electrode for bioelectric acquisition, and select and switch the specified stimulation electrode to output the electrical stimulation signal; the crystal oscillator Y3 is used to provide an external clock for the digital-to-analog converter U10.

[0021] Furthermore, the electrical stimulation module mainly includes optocoupler U12, optocoupler U13, field-effect transistor Q4, field-effect transistor Q5, amplifier U8A, and amplifier U8B; optocoupler U12 and optocoupler U13 are used for isolating the electrical stimulation signal, field-effect transistor Q4 and field-effect transistor Q5 are used as pulse modulators or switching regulators for the electrical stimulation signal, and amplifier U8A and amplifier U8B are used for amplifying and filtering the electrical stimulation signal.

[0022] Furthermore, the analog-to-digital converter U26 is model ADS1292IRSMT, featuring a built-in programmable gain amplifier, internal reference, and onboard oscillator; the digital-to-analog converter U10 is model DAC8812, a dual-channel 16-bit current-output digital-to-analog converter; the optocouplers U12 and U13 are model TLP109; the field-effect transistors Q4 and Q5 are model 2N7002KDW; the amplifiers U8A and U8B are model GS8552-SR; the transistors Q6 and Q7 are PNP transistors, and the transistors Q8 and Q9 are NPN transistors.

[0023] Furthermore, the optocoupler is model TLP109, and the field-effect transistor is model 2N7002KDW.

[0024] Compared with existing technologies, the present invention provides a stimulation and acquisition device, which mainly includes a host, an adapter, and an electrode array. The electrode array consists of multi-point flexible electrodes in the form of gel, used for non-invasive bioelectrical acquisition and electrical stimulation of the body surface. The adapter is used for signal transmission between the host and the electrode array. The host mainly includes a central controller, a signal acquisition module, a channel configuration module, and an electrical stimulation module. The present invention acquires and analyzes the bioelectrical signals of the human body by selecting designated acquisition electrodes, and determines the acquisition electrodes that transmit the most significant or least significant bioelectrical signals as target electrodes, thereby obtaining the optimal stimulation electrode configuration to achieve better rehabilitation or treatment effects. Furthermore, based on the structural advantages of the electrode array, appropriate electrodes can be selected as acquisition electrodes near the stimulation electrodes, or the acquisition electrodes and stimulation electrodes can be time-divisionally reused, thereby providing better electrical stimulation feedback. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in 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.

[0026] Figure 1 This is a system block diagram of a stimulation and acquisition device provided in an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the central controller circuit of a stimulation and acquisition device provided in an embodiment of the present invention.

[0028] Figure 3 This is a circuit diagram of the signal acquisition module of a stimulation and acquisition device provided in an embodiment of the present invention.

[0029] Figure 4 This is a circuit diagram of a channel configuration module for a stimulation and acquisition device provided in an embodiment of the present invention.

[0030] Figure 5 This is a circuit diagram of an electrical stimulation module of a stimulation and acquisition device provided in an embodiment of this utility model.

[0031] Figure 6 This is one of the schematic diagrams of the electrode arrangement shape of the electrode array of a stimulation and acquisition device provided in this embodiment of the present invention.

[0032] Figure 7 This is the second schematic diagram of the electrode arrangement shape of the electrode array of a stimulation and acquisition device provided in this embodiment of the present invention.

[0033] Figure 8 This is one of the appearance renderings of a stimulation and acquisition device provided in an embodiment of this utility model.

[0034] Figure 9 This is the second rendering of the appearance of a stimulation and acquisition device provided in an embodiment of this utility model.

[0035] The markings in the above diagram are: 1. Main unit; 2. Adapter; 3. Electrode array; 4. Connecting cable; 5. Flexible flat cable; 10. Central controller; 11. Signal acquisition module; 12. Electrical stimulation module; 13. Channel configuration module; 31. Acquisition electrode; 32. Stimulation electrode. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0038] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1 to 9 The image shown is a preferred embodiment of the present invention.

[0040] Reference Figure 1 The stimulation and acquisition device provided in this embodiment mainly includes a host 1, an adapter 2, and an electrode array 3. The electrode array 3 is a multi-point flexible electrode in the form of gel, including an acquisition electrode 31 and a stimulation electrode 32. The acquisition electrode 31 is used for non-invasive bioelectrical acquisition of the human body surface, and the stimulation electrode 32 is used for non-invasive electrical stimulation of the human body surface. The acquisition electrode 31 and the stimulation electrode 32 can be the same electrode or different electrodes. The adapter 2 is used for signal transmission between the host 1 and the electrode array 3.

[0041] The main unit 1 mainly includes a central controller 10, a signal acquisition module 11, a channel configuration module 13, and an electrical stimulation module 14;

[0042] The signal acquisition module 11 is used to process the bioelectric signals acquired by the acquisition electrode 31 received through the adapter 2 and then transmit them to the central controller 10.

[0043] The central controller 10 is used to generate a acquisition control channel signal and transmit it to the channel configuration module 13 to control the channel configuration module 13 to select and switch the designated acquisition electrode 31 to acquire bioelectric signals. By analyzing the bioelectric signals, the acquisition electrode 31 that transmits the most significant or least significant bioelectric signals is determined as the target electrode, thereby obtaining the optimal configuration of the stimulation electrode 32, and generating a stimulation control channel signal to be transmitted to the channel configuration module 13 and an electrical stimulation signal to be transmitted to the electrical stimulation module 14.

[0044] The channel configuration module 13 is used to select and switch the electrode array 3 through the adapter interface 2 according to the acquisition control channel signal generated by the central controller 10, that is, to select and switch the designated acquisition electrode 31 for bioelectric acquisition, and to select and switch the electrode array 3 through the adapter interface 2 according to the stimulation control channel signal generated by the central controller 10, that is, to select and switch the designated stimulation electrode 32 to output an electrical stimulation signal.

[0045] The electrical stimulation module 14 is used to transmit the electrical stimulation signal generated by the central controller 10 to the stimulation electrode 32 through the adapter 2 after voltage regulation, amplification and filtering.

[0046] The central controller 10 is electrically connected to the signal acquisition module 11, the channel configuration module 13, and the electrical stimulation module 14 respectively. The host 1 is connected through the connector 2, and the connector 2 is connected to each acquisition electrode 31 and each stimulation electrode 32 through a flexible flat cable.

[0047] Electrode array 3 can also take the form of thin film, foam, fiber, paper, and financial network.

[0048] The working principle of the stimulation and acquisition device is as follows:

[0049] Step 1: Based on the subject's condition, determine the target area for attaching the electrode array 3, clean the skin surface, and attach the electrode array 3 to the target area; ensure that the electrode array 3 makes good contact with the skin;

[0050] Step 2: The central controller 10 generates a data acquisition control channel signal and transmits it to the channel configuration module 13. The control channel configuration module 13 selects and switches the designated data acquisition electrode 31 to acquire bioelectric signals.

[0051] Step 3: The acquisition electrode 31 transmits the acquired bioelectric signals to the signal acquisition module 11 through the adapter 2. The signal acquisition module 11 then performs analog-to-digital conversion on the bioelectric signals and transmits them to the central controller 10. The central controller 10 analyzes the bioelectric signals to determine the acquisition electrode 31 that transmits the most significant or least significant bioelectric signals as the target electrode. This determines the optimal configuration of the stimulation electrode 32, generates a stimulation control channel signal that is transmitted to the channel configuration module 13, and transmits an electrical stimulation signal to the electrical stimulation module 14.

[0052] Step 4: The channel configuration module 13 selects and switches the designated stimulation electrode 32 according to the stimulation control channel signal and outputs the electrical stimulation signal transmitted by the electrical stimulation module 14.

[0053] Step 5: After the electrical stimulation signal is applied to the target area of ​​the subject through the stimulation electrode 32, the target area of ​​the subject is stimulated to generate a bioelectrical signal.

[0054] The second to fifth steps above are repeated continuously, thus achieving the following: by obtaining the optimal configuration of the stimulation electrode 32, a better rehabilitation or treatment effect is achieved. Furthermore, based on the structural advantages of the electrode array 3, an appropriate electrode is selected near the stimulation electrode 32 as the acquisition electrode 31, or the acquisition electrode 31 and the stimulation electrode 32 are time-divisionally reused, thereby providing better electrical stimulation feedback.

[0055] The stimulation and acquisition device provided by the above technical solution mainly includes a host 1, an adapter 2, and an electrode array 3. The electrode array 3 is a multi-point flexible electrode in the form of gel, used for non-invasive bioelectrical acquisition and electrical stimulation of the body surface. The adapter 2 is used for signal transmission between the host 1 and the electrode array 3. The host 1 mainly includes a central controller 10, a signal acquisition module 11, a channel configuration module 13, and an electrical stimulation module 14. This utility model selects a designated acquisition electrode 31 to collect and analyze the bioelectrical signals of the human body. The acquisition electrode 31 that transmits the most significant or least significant bioelectrical signals is determined as the target electrode, thereby obtaining the optimal configuration of the stimulation electrode 32 to achieve better rehabilitation or treatment effects. Furthermore, based on the structural advantages of the electrode array 3, appropriate electrodes are selected near the stimulation electrode 32 as acquisition electrodes 31, or the acquisition electrode 31 and the stimulation electrode 32 are time-division multiplexed, thereby providing better electrical stimulation feedback.

[0056] Reference Figure 2 The central controller 10 mainly includes a microcontroller U7 and a crystal oscillator Y1; the microcontroller U7 is an STM32F103VET6, a 32-bit high-density high-performance line microcontroller unit with 512kB of flash memory; the crystal oscillator Y1 is used to provide an external clock for the microcontroller U7.

[0057] Pin 10 of microcontroller U7 is grounded. Pin 11 of microcontroller U7 is connected to a 3.3V voltage. Pin 12 of microcontroller U7 is connected to pin 1 of crystal oscillator Y1 and one end of capacitor C22. Pin 2 of crystal oscillator Y1 and the other end of capacitor C22 are connected and then grounded. Pin 13 of microcontroller U7 is connected to one end of capacitor C24 and pin 3 of crystal oscillator Y1. The other end of capacitor C24 is grounded. Pin 4 of crystal oscillator Y1 is grounded. Pins 19 and 20 of microcontroller U7 are connected and then grounded. Pins 21 and 22 of microcontroller U7 are connected and then connected to an analog voltage. Pin 27 of microcontroller U7 is grounded. Pin 28 of microcontroller U7 is connected to a 3.3V voltage. Pin 49 of microcontroller U7 is grounded. Pin 50 of microcontroller U7 is connected to a 3.3V voltage. Pin 64 of microcontroller U7 is connected to one end of resistor R28; pin 65 of microcontroller U7 is connected to one end of resistor R29; pin 65 of microcontroller U7 is connected to one end of resistor R30; the other end of resistor R28 is connected to the positive terminal of LED D6; the other end of resistor R29 is connected to the positive terminal of LED D7; the other end of resistor R30 is connected to the positive terminal of LED D8; the negative terminals of LED D6, LED D7, and LED D8 are connected together and grounded; pin 74 of microcontroller U7 is grounded; pin 75 of microcontroller U7 is connected to a voltage of 3.3V; pin 94 of microcontroller U7 is grounded through resistor R23; pin 99 of microcontroller U7 is grounded; pin 100 of microcontroller U7 is connected to a voltage of 3.3V.

[0058] Pin 17 of microcontroller U7 is the PWDN terminal, and pin 16 is the PWDN2 terminal, used for enable control; pin 43 is the START1 terminal, and pin 42 is the START2 terminal, used to output the start signal; pin 51 of microcontroller U7 is connected to the SPI2_NSS terminal, and pin 63 is connected to the SPI2_NSS2 terminal, serving as the chip select signal line for the SPI bus in SP2 mode; pin 54 of microcontroller U7 is connected to the SPI2_MOSI terminal, used for data output of the SPI bus in SP2 mode; the pins of microcontroller U7... Pin 52 connects to the SPI2_SCK terminal, used for the serial clock of the SPI bus in SP2 mode; pin 53 of microcontroller U7 connects to the SPI2_MISO terminal, used for data input of the SPI bus in SP2 mode; pin 46 of microcontroller U7 connects to the DRDY1 terminal, and pin 67 of microcontroller U7 connects to the DRDY2 terminal, which are the data ready signals of the SPI bus in SP2 mode; pin 36 of microcontroller U7 is the PWM1 terminal, pin 35 of microcontroller U7 is the PWM2 terminal, used for outputting pulse control signals; pin 23 of microcontroller U7 is the ADC0 terminal, which is the digital-to-analog conversion channel.

[0059] Reference Figure 3 The signal acquisition module 11 mainly includes an analog-to-digital converter U26, an amplifier U25, and a crystal oscillator Y2. The analog-to-digital converter U26 is used to detect bioelectric signals and perform analog-to-digital conversion on the bioelectric signals to transmit them to the central controller 10. The amplifier U25 is used to amplify and filter the bioelectric signals. The crystal oscillator Y2 is used to provide an external clock for the analog-to-digital converter U26.

[0060] Pin 1 of analog-to-digital converter U26 is connected to pin 2 of analog-to-digital converter U26 via capacitor C85. Pin 3 of analog-to-digital converter U26 is connected to one end of resistor R122 after passing through one end of resistor R123 and one end of capacitor C86. Pin 4 of analog-to-digital converter U26 is connected to one end of resistor R124 after passing through the other end of resistor R123 and one end of capacitor C86. The other end of resistor R124 is connected to the positive terminal of acquisition electrode 31 via adapter 2. Pin 5 of analog-to-digital converter U26 is connected to one end of resistor R126 after passing through one end of resistor R127 and one end of capacitor C91. Pin 6 of analog-to-digital converter U26 is connected to... One end of resistor R128 is connected to the negative terminal of acquisition electrode 31 via adapter 2. The other end of resistor R122 is connected to the other end of resistor R126, then passes through one end of capacitor C90 and one end of capacitor C89, and finally connects to one end of resistor R125. The other ends of capacitors C90 and C89 are connected to analog ground, respectively. The other end of resistor R125 is connected to the reference voltage. Pin 7 of analog-to-digital converter U26 is connected to pin 8 of analog-to-digital converter U26 via capacitor C92. Pin 9 of analog-to-digital converter U26 is connected to one end of capacitor C94 and one end of capacitor C95, respectively. Pin 10 of analog-to-digital converter U26 is connected to the other ends of capacitors C94 and C95. Pin 11 of the analog-to-digital converter (ADC) U26 is connected to analog ground via capacitor C96. Pin 12 of the ADC U26 is connected to the analog voltage 5V, one end of capacitor C97, and one end of capacitor C98. The other ends of capacitors C97 and C98 are connected together and then connected to analog ground. Pin 13 of the ADC U26 is connected to analog ground. Pin 14 of the ADC U26 is connected to one end of resistor R130 and one end of resistor R129. The other end of resistor R130 is connected to a 3.3V voltage, and the other end of resistor R129 is grounded. Pin 15 of the ADC U26 is connected to the PWDN terminal. Pin 16 of the ADC U26 is connected to the START1 terminal. Pin 17 of converter U26 is connected to pin 3 of crystal oscillator Y2. Pin 2 of crystal oscillator Y2 is grounded. Pins 1 and 4 of crystal oscillator Y2 are connected to a voltage of 3.3V and one end of capacitor C93, respectively. The other end of capacitor C93 is grounded. Pin 18 of analog-to-digital converter U26 is connected to the SPI2_NSS terminal. Pin 19 of analog-to-digital converter U26 is connected to the SPI2_MOSI terminal. Pin 20 of analog-to-digital converter U26 is connected to the SPI2_SCK terminal. Pin 21 of analog-to-digital converter U26 is connected to the SPI2_MISO terminal. Pin 22 of analog-to-digital converter U26 is connected to the DRDY1 terminal. Pin 23 of analog-to-digital converter U26 is connected to a voltage of 3.3V after passing through one end of capacitor C87 and one end of capacitor C88.3V, the other ends of capacitor C87 and capacitor C88 are connected to ground, pin 24 of analog-to-digital converter U26 is grounded, pin 27 of analog-to-digital converter U26 is grounded through capacitor C84, pin 28 of analog-to-digital converter U26 is connected to one end of resistor R121 and one end of capacitor C83 in sequence, pin 29 of analog-to-digital converter U26 is connected to one end of resistor R120, pin 30 of analog-to-digital converter U26 is connected to one end of resistor R119, and the connection point of the other ends of resistor R120 and resistor R121 is connected to resistor R The other end of capacitor C83 is connected to the connection point of capacitor C83, and then connected to one end of resistor R118. The other end of resistor R118 is connected to the drive output terminal RLD_OUT and the non-inverting input terminal of amplifier U25. The inverting input terminal and output terminal of amplifier U25 are connected to the current detection terminal SHIELD. The negative power supply of amplifier U25 is grounded. The positive power supply of amplifier U25 is connected to one end of capacitor C82 and a voltage of 3.3V. The other end of capacitor C82 is grounded. Pin 33 of analog-to-digital converter U26 is connected to analog ground.

[0061] Reference Figure 4 The channel configuration module 13 mainly includes a digital-to-analog converter U10 and a crystal oscillator Y3. The digital-to-analog converter U10 is used to convert the acquisition control channel signal and stimulation control channel signal generated by the central controller 10 into analog signals and transmit them to the electrode array 3 through the adapter 2, so as to select and switch the specified acquisition electrode 31 for bioelectric acquisition, and select and switch the specified stimulation electrode 32 to output electrical stimulation signal. The crystal oscillator Y3 is used to provide an external clock for the digital-to-analog converter U10.

[0062] Pin 1 of the digital-to-analog converter U10 is connected to pin 2 of the same converter via capacitor C46. Pin 3 of the converter is sequentially connected to one end of capacitor C43, one end of resistor R63, one end of capacitor C45, and one end of resistor R62. The other end of capacitor C43 is connected to analog ground. Resistor R62 is connected to pin 2 of connector J6 via one end of bismuth diode DC11. The other end of bismuth diode DC11 is connected to analog ground. Pin 2 of connector J6 is connected to the positive terminal of electrode array 3 via adapter 2. Pin 4 of converter U10 is sequentially connected to one end of capacitor C47, the other end of resistor R63, the other end of capacitor C45, and one end of resistor R64. The other end of capacitor C47 is connected to analog ground. Resistor R64 is connected to pin 4 of connector J6 via one end of bismuth regulator DC12. The other end of bismuth regulator DC12 is connected to analog ground. Pin 4 of connector J6 is connected to the negative terminal of electrode array 3 via adapter 2. Pin 9 of digital-to-analog converter U10 is connected to one end of capacitor C66 and one end of capacitor C67, respectively. Digital-to-analog converter U1... Pin 11 of the digital-to-analog converter U10 is connected to one end of capacitor C75. Pin 10 of the digital-to-analog converter U10 is connected to the other ends of capacitors C66, C67, and C75, and then connected to a voltage of -2.5V. Pin 12 of the digital-to-analog converter U10 is connected to a voltage of 2.5V after passing through one end of capacitor C101 and one end of capacitor C100. The other ends of capacitors C101 and C100 are connected to analog ground. Pin 13 of the digital-to-analog converter U10 is connected to one end of capacitor C102 and one end of capacitor C103, and then... Connect the voltage to -2.5V. Connect the other end of capacitor C102 and the other end of capacitor C103 to analog ground. Connect pin 14 of digital-to-analog converter U10 to one end of resistor R68 and one end of resistor R67 respectively. Connect the other end of resistor R68 to voltage 3.3V. Connect the other end of resistor R67 to ground. Connect pin 17 of digital-to-analog converter U10 to pin 3 of crystal oscillator Y3. Connect pin 2 of crystal oscillator Y3 to ground. Connect pins 1 and 4 of crystal oscillator Y3 to voltage 3.3V and one end of capacitor C64 respectively. Connect the other end of capacitor C64 to ground.

[0063] Pin 15 of the digital-to-analog converter U10 is connected to the PWDN2 terminal, pin 16 of the digital-to-analog converter U10 is connected to the START2 terminal, pin 18 of the digital-to-analog converter U10 is connected to the SPI2_NSS2 terminal, pin 19 of the digital-to-analog converter U10 is connected to the SPI2_MOSI terminal, pin 20 of the digital-to-analog converter U10 is connected to the SPI2_SCK terminal, pin 21 of the digital-to-analog converter U10 is connected to the SPI2_MISO terminal, and pin 22 of the digital-to-analog converter U10 is connected to the DRDY2 terminal.

[0064] Pin 23 of the digital-to-analog converter U10 is connected in sequence to one end of capacitor C48, one end of capacitor C49, and a voltage of 3.0V. The other ends of capacitors C48 and C49 are connected to ground. Pin 24 of the digital-to-analog converter U10 is grounded. Pin 27 of the digital-to-analog converter U10 is connected to a voltage of -2.5V through capacitor C44. Pin 29 of the digital-to-analog converter U10 is connected to one end of resistor R60. Pin 30 of the digital-to-analog converter U10 is connected to one end of resistor R59. The other ends of resistors R60 and R59 are connected to one end of resistor R61 and one end of capacitor C42, respectively. The other end of resistor R61 is connected to the other end of capacitor C42. Pin 33 of the digital-to-analog converter U10 is connected to analog ground.

[0065] Reference Figure 5 The electrostimulation module 14 mainly includes optocoupler U12, optocoupler U13, field-effect transistor Q4, field-effect transistor Q5, amplifier U8A, and amplifier U8B. Optocoupler U12 and optocoupler U13 are used for isolation of electrostimulation signals, field-effect transistor Q4 and field-effect transistor Q5 are used as pulse modulators or switching regulators for electrostimulation signals, and amplifiers U8A and U8B are used for amplification and filtering of electrostimulation signals.

[0066] Pin 1 of optocoupler U12 is connected to the PWM1 terminal via resistor R97. Pin 3 of optocoupler U12 is grounded. Pin 4 of optocoupler U12 is connected to analog ground. Pin 5 of optocoupler U12 is connected to one end of resistor R6, one end of resistor R35, and one end of resistor R37, respectively. Pin 6 of optocoupler U12 is connected to the other end of resistor R6 and the analog voltage 3.3V, respectively. Pin 1 of MOSFET Q4 is connected to analog ground. Pin 2 of MOSFET Q4 is connected to the other end of resistor R35. Pin 3 of MOSFET Q4 is connected to resistor R4. One end of the circuit is connected to analog ground. Pin 4 of MOSFET Q4 is connected to analog ground. Pin 5 of MOSFET Q4 is connected to the other end of resistor R37. Pin 6 of MOSFET Q4 is connected to one end of resistor R39. The other end of resistor R39 is connected to the base of transistor Q7 and one end of resistor R33. The other end of resistor R33, after passing through the emitter of transistor Q7, is connected to one end of capacitor C33 and a voltage of 25V. The other end of capacitor C33 is connected to analog ground. The collector of transistor Q7 is connected to one end of resistor R43 and one end of bismuth diode DC9. One end of bismuth diode DC9 is also connected to a terminal. CHA1, terminal CHA1 is connected to the positive terminal of stimulation electrode 32 via adapter 2. The other end of the bismuth diode DC9 is connected to analog ground. The other end of resistor R43 is connected to the collector of transistor Q8. The emitter of transistor Q8 is connected to one end of resistor R53, one end of resistor R55, and the ADC0 terminal, respectively. The other end of resistor R55 is connected to analog ground. The base of transistor Q8 is connected to one end of capacitor C38 and one end of resistor R49, respectively. The other end of capacitor C38 is connected to analog ground. The other end of resistor R49 is connected to one end of capacitor C55 and the output terminal of amplifier U8A, respectively. The other end of C55 is connected to the other end of resistor R53 and the inverting input of amplifier U8A. The negative power supply of amplifier U8A is connected to analog ground. The positive power supply of amplifier U8A is connected to the analog voltage 3.3V and one end of capacitor C35. The other end of capacitor C35 is grounded. The non-inverting input of amplifier U8A is connected to the other end of resistor R41, one end of resistor R51, one end of resistor R45, and one end of capacitor C36 via resistor R46. The other end of capacitor C36 is connected to analog ground. The other end of resistor R51 is connected to analog ground. The other end of resistor R45 is connected to terminal DAC1S.

[0067] Preferably, the analog-to-digital converter U26 is model ADS1292IRSMT, which has a built-in programmable gain amplifier, an internal reference, and an onboard oscillator.

[0068] Preferably, the digital-to-analog converter U10 is model DAC8812, which is a dual-channel 16-bit current output digital-to-analog converter.

[0069] Preferably, the optocoupler U12 and optocoupler U13 are of model TLP109, and the field-effect transistors Q4 and Q5 are of model 2N7002KDW.

[0070] Specifically, amplifiers U8A and U8B are model GS8552-SR; transistors Q6 and Q7 are PNP transistors, and transistors Q8 and Q9 are NPN transistors.

[0071] Preferably, the electrode array 3 can be arranged in two ways: square arrangement and circular arrangement. The square arrangement of the electrode array 3 is shown below. Figure 6 As shown, electrode array 3 is arranged in a circular pattern. Figure 7 As shown.

[0072] Specifically, the connection effect of the main unit 1, adapter 2, electrode array 3, connecting cable, and flexible flat cable is as follows: Figure 8 and Figure 9 As shown, where, Figure 8 This refers to the case where electrode array 3 is arranged in a square. Figure 9 This refers to the case where the electrode array 3 is arranged in a circle; each electrode in the electrode array 3 is controlled to be switched on or off at a single point via an analog switch or relay; the adapter 2 is equipped with an indicator light, each indicator light corresponding to each electrode; when the indicator light is green, it indicates that the corresponding acquisition electrode 31 is acquiring bioelectrical signals; when the indicator light is blue, it indicates that the corresponding stimulation electrode 32 is outputting electrical stimulation signals; an indicator light that is not lit indicates that the corresponding electrode is not selected; when the indicator light is red, it indicates that the corresponding electrode is malfunctioning.

[0073] The embodiments of the present utility model have been described in detail above, but the creation of the present utility model is not limited to the embodiments described above. Those skilled in the art can make many equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are all included within the protection scope defined by the claims of this application.

Claims

1. A stimulation and collection device, characterized in that, The stimulation and acquisition device mainly includes a main unit, an adapter, and an electrode array. The electrode array is a multi-point flexible electrode in the form of gel, including acquisition electrodes and stimulation electrodes. The acquisition electrodes are used for non-invasive bioelectrical acquisition of the human body surface, and the stimulation electrodes are used for non-invasive electrical stimulation of the human body surface. The acquisition electrodes and the stimulation electrodes can be the same electrode or different electrodes. The adapter is used for signal transmission between the main unit and the electrode array. The host mainly includes a central controller, a signal acquisition module, a channel configuration module, and an electrical stimulation module; The signal acquisition module is used to process the bioelectric signals acquired by the acquisition electrodes through the adapter and then transmit them to the central controller. The central controller is used to generate a acquisition control channel signal and transmit it to the channel configuration module to control the channel configuration module to select and switch the designated acquisition electrodes to acquire the bioelectric signals. By analyzing the bioelectric signals, the acquisition electrodes that transmit the most significant or least significant bioelectric signals are determined as the target electrodes, thereby obtaining the optimal configuration of the stimulation electrodes. The central controller then generates a stimulation control channel signal and transmits it to the channel configuration module, and transmits an electrical stimulation signal to the electrical stimulation module. The channel configuration module is used to select and switch the electrode array through the adapter interface according to the acquisition control channel signal generated by the central controller, that is, to select and switch the specified acquisition electrode for bioelectric acquisition, and to select and switch the electrode array through the adapter interface according to the stimulation control channel signal generated by the central controller, that is, to select and switch the specified stimulation electrode to output the electrical stimulation signal. The electrical stimulation module is used to transmit the electrical stimulation signal generated by the central controller to the stimulation electrode through the adapter after voltage stabilization, amplification and filtering. The central controller is electrically connected to the signal acquisition module, the channel configuration module, and the electrical stimulation module, respectively. The host is connected to the adapter via a connecting cable, and the adapter is connected to each acquisition electrode and each stimulation electrode via a flexible flat cable. The electrode array can also be in the form of a thin film, foam, fiber, paper-based, or financial network.

2. A stimulation and collection device according to claim 1, characterized in that The central controller mainly includes a microcontroller U7 and a crystal oscillator Y1; the microcontroller U7 is an STM32F103VET6, a 32-bit high-density, high-performance line microcontroller unit with 512kB of flash memory; the crystal oscillator Y1 is used to provide an external clock for the microcontroller U7. Pin 10 of microcontroller U7 is grounded. Pin 11 of microcontroller U7 is connected to a 3.3V voltage. Pin 12 of microcontroller U7 is connected to pin 1 of crystal oscillator Y1 and one end of capacitor C22. Pin 2 of crystal oscillator Y1 and the other end of capacitor C22 are connected and then grounded. Pin 13 of microcontroller U7 is connected to one end of capacitor C24 and pin 3 of crystal oscillator Y1. The other end of capacitor C24 is grounded. Pin 4 of crystal oscillator Y1 is grounded. Pins 19 and 20 of microcontroller U7 are connected and then grounded. Pins 21 and 22 of microcontroller U7 are connected and then connected to an analog voltage. Pin 27 of microcontroller U7 is grounded. Pin 28 of microcontroller U7 is connected to a 3.3V voltage. Pin 49 of microcontroller U7 is grounded. Pin 50 of microcontroller U7 is connected to a 3.3V voltage. Pin 64 of microcontroller U7 is connected to one end of resistor R28; pin 65 of microcontroller U7 is connected to one end of resistor R29; pin 65 of microcontroller U7 is connected to one end of resistor R30; the other end of resistor R28 is connected to the positive terminal of LED D6; the other end of resistor R29 is connected to the positive terminal of LED D7; the other end of resistor R30 is connected to the positive terminal of LED D8; the negative terminals of LED D6, LED D7, and LED D8 are connected together and grounded; pin 74 of microcontroller U7 is grounded; pin 75 of microcontroller U7 is connected to a voltage of 3.3V; pin 94 of microcontroller U7 is grounded through resistor R23; pin 99 of microcontroller U7 is grounded; pin 100 of microcontroller U7 is connected to a voltage of 3.3V. Pin 17 of microcontroller U7 is the PWDN terminal, and pin 16 is the PWDN2 terminal, used for enable control; pin 43 is the START1 terminal, and pin 42 is the START2 terminal, used to output the start signal; pin 51 of microcontroller U7 is connected to the SPI2_NSS terminal, and pin 63 is connected to the SPI2_NSS2 terminal, serving as the chip select signal line for the SPI bus in SP2 mode; pin 54 of microcontroller U7 is connected to the SPI2_MOSI terminal, used for data output of the SPI bus in SP2 mode; the pins of microcontroller U7... Pin 52 connects to the SPI2_SCK terminal, used for the serial clock of the SPI bus in SP2 mode; pin 53 of microcontroller U7 connects to the SPI2_MISO terminal, used for data input of the SPI bus in SP2 mode; pin 46 of microcontroller U7 connects to the DRDY1 terminal, and pin 67 of microcontroller U7 connects to the DRDY2 terminal, which are the data ready signals of the SPI bus in SP2 mode; pin 36 of microcontroller U7 is the PWM1 terminal, pin 35 of microcontroller U7 is the PWM2 terminal, used for outputting pulse control signals; pin 23 of microcontroller U7 is the ADC0 terminal, which is the digital-to-analog conversion channel.

3. A stimulation and collection device according to claim 2, wherein, The signal acquisition module mainly includes an analog-to-digital converter U26, an amplifier U25, and a crystal oscillator Y2; the analog-to-digital converter U26 is used to detect the bioelectric signal and perform analog-to-digital conversion on the bioelectric signal to transmit it to the central controller, the amplifier U25 is used to amplify and filter the bioelectric signal, and the crystal oscillator Y2 is used to provide an external clock for the analog-to-digital converter U26; Pin 1 of analog-to-digital converter U26 is connected to pin 2 of analog-to-digital converter U26 via capacitor C85. Pin 3 of analog-to-digital converter U26 is connected to one end of resistor R122 after passing through one end of resistor R123 and one end of capacitor C86. Pin 4 of analog-to-digital converter U26 is connected to one end of resistor R124 after passing through the other end of resistor R123 and the other end of capacitor C86. The other end of resistor R124 is connected to the positive terminal of the acquisition electrode through the adapter. Pin 5 of analog-to-digital converter U26 is connected to one end of resistor R126 after passing through one end of resistor R127 and one end of capacitor C91. Pin 6 of analog-to-digital converter U26 is connected to... One end of resistor R128 is connected to the terminal of the acquisition electrode via the adapter. The other end of resistor R122 is connected to the other end of resistor R126, then passes through one end of capacitor C90 and one end of capacitor C89, and finally connects to one end of resistor R125. The other ends of capacitors C90 and C89 are connected to analog ground, and the other end of resistor R125 is connected to the reference voltage. Pin 7 of analog-to-digital converter U26 is connected to pin 8 of analog-to-digital converter U26 via capacitor C92. Pin 9 of analog-to-digital converter U26 is connected to one end of capacitor C94 and one end of capacitor C95, respectively. Pin 10 of analog-to-digital converter U26 is connected to the other ends of capacitors C94 and C95. Following the analog ground, pin 11 of the analog-to-digital converter (ADC) U26 is connected to analog ground via capacitor C96. Pin 12 of the ADC U26 is connected to the analog voltage 5V, one end of capacitor C97, and one end of capacitor C98. The other ends of capacitors C97 and C98 are connected to analog ground. Pin 13 of the ADC U26 is also connected to analog ground. Pin 14 of the ADC U26 is connected to one end of resistor R130 and one end of resistor R129. The other end of resistor R130 is connected to a 3.3V voltage, and the other end of resistor R129 is grounded. Pin 15 of the ADC U26 is connected to the PWDN terminal. Pin 16 of the ADC U26 is connected to the START1 terminal. Pin 17 of converter U26 is connected to pin 3 of crystal oscillator Y2. Pin 2 of crystal oscillator Y2 is grounded. Pins 1 and 4 of crystal oscillator Y2 are connected to a voltage of 3.3V and one end of capacitor C93, respectively. The other end of capacitor C93 is grounded. Pin 18 of analog-to-digital converter U26 is connected to the SPI2_NSS terminal. Pin 19 of analog-to-digital converter U26 is connected to the SPI2_MOSI terminal. Pin 20 of analog-to-digital converter U26 is connected to the SPI2_SCK terminal. Pin 21 of analog-to-digital converter U26 is connected to the SPI2_MISO terminal. Pin 22 of analog-to-digital converter U26 is connected to the DRDY1 terminal. Pin 23 of analog-to-digital converter U26 is connected to a voltage of 3.3V after passing through one end of capacitor C87 and one end of capacitor C88.3V, the other ends of capacitor C87 and capacitor C88 are connected to ground, pin 24 of analog-to-digital converter U26 is grounded, pin 27 of analog-to-digital converter U26 is grounded through capacitor C84, pin 28 of analog-to-digital converter U26 is connected to one end of resistor R121 and one end of capacitor C83 in sequence, pin 29 of analog-to-digital converter U26 is connected to one end of resistor R120, pin 30 of analog-to-digital converter U26 is connected to one end of resistor R119, and the connection point of the other ends of resistor R120 and resistor R121 is connected to resistor R The other end of capacitor C83 is connected to the connection point of capacitor C83, and then connected to one end of resistor R118. The other end of resistor R118 is connected to the drive output terminal RLD_OUT and the non-inverting input terminal of amplifier U25. The inverting input terminal and output terminal of amplifier U25 are connected to the current detection terminal SHIELD. The negative power supply of amplifier U25 is grounded. The positive power supply of amplifier U25 is connected to one end of capacitor C82 and a voltage of 3.3V. The other end of capacitor C82 is grounded. Pin 33 of analog-to-digital converter U26 is connected to analog ground.

4. A stimulation and collection device according to claim 3, wherein, The channel configuration module mainly includes a digital-to-analog converter U10 and a crystal oscillator Y3. The digital-to-analog converter U10 is used to convert the acquisition control channel signal and the stimulation control channel signal generated by the central controller into analog signals and transmit them to the electrode array through the adapter interface, so as to select and switch the specified acquisition electrode for bioelectrical acquisition, and select and switch the specified stimulation electrode to output the electrical stimulation signal. The crystal oscillator Y3 is used to provide an external clock for the digital-to-analog converter U10. Pin 1 of the digital-to-analog converter U10 is connected to pin 2 of the same converter via capacitor C46. Pin 3 of the converter is sequentially connected to one end of capacitor C43, one end of resistor R63, one end of capacitor C45, and one end of resistor R62. The other end of capacitor C43 is connected to analog ground. Resistor R62 is connected to pin 2 of connector J6 via one end of bismuth diode DC11. The other end of bismuth diode DC11 is connected to analog ground. Pin 2 of connector J6 is connected to the positive terminal of the electrode array via the adapter. Pin 4 of converter U10 is sequentially connected to one end of capacitor C47, the other end of resistor R63, the other end of capacitor C45, and one end of resistor R64. The other end of capacitor C47 is connected to analog ground. Resistor R64 is connected to pin 4 of connector J6 via one end of bismuth regulator DC12. The other end of bismuth regulator DC12 is connected to analog ground. Pin 4 of connector J6 is connected to the negative terminal of the electrode array through the adapter. Pin 9 of digital-to-analog converter U10 is connected to one end of capacitor C66 and one end of capacitor C67, respectively. Pin 11 of U10 is connected to one end of capacitor C75. Pin 10 of the digital-to-analog converter U10 is connected to the other ends of capacitors C66, C67, and C75, and then connected to a voltage of -2.5V. Pin 12 of the digital-to-analog converter U10 is connected to a voltage of 2.5V after passing through one end of capacitor C101 and one end of capacitor C100. The other ends of capacitors C101 and C100 are connected to analog ground. Pin 13 of the digital-to-analog converter U10 is connected to one end of capacitor C102 and one end of capacitor C103. The circuit is connected to a voltage of -2.5V. The other ends of capacitors C102 and C103 are connected to analog ground. Pin 14 of the digital-to-analog converter U10 is connected to one end of resistor R68 and one end of resistor R67. The other end of resistor R68 is connected to a voltage of 3.3V, and the other end of resistor R67 is grounded. Pin 17 of the digital-to-analog converter U10 is connected to pin 3 of crystal oscillator Y3. Pin 2 of crystal oscillator Y3 is grounded. Pins 1 and 4 of crystal oscillator Y3 are connected to a voltage of 3.3V and one end of capacitor C64, and the other end of capacitor C64 is grounded. Pin 15 of the digital-to-analog converter U10 is connected to the PWDN2 terminal, pin 16 of the digital-to-analog converter U10 is connected to the START2 terminal, pin 18 of the digital-to-analog converter U10 is connected to the SPI2_NSS2 terminal, pin 19 of the digital-to-analog converter U10 is connected to the SPI2_MOSI terminal, pin 20 of the digital-to-analog converter U10 is connected to the SPI2_SCK terminal, pin 21 of the digital-to-analog converter U10 is connected to the SPI2_MISO terminal, and pin 22 of the digital-to-analog converter U10 is connected to the DRDY2 terminal. Pin 23 of the digital-to-analog converter U10 is connected in sequence to one end of capacitor C48, one end of capacitor C49, and a voltage of 3.0V. The other ends of capacitors C48 and C49 are connected to ground. Pin 24 of the digital-to-analog converter U10 is grounded. Pin 27 of the digital-to-analog converter U10 is connected to a voltage of -2.5V through capacitor C44. Pin 29 of the digital-to-analog converter U10 is connected to one end of resistor R60. Pin 30 of the digital-to-analog converter U10 is connected to one end of resistor R59. The other ends of resistors R60 and R59 are connected to one end of resistor R61 and one end of capacitor C42, respectively. The other end of resistor R61 is connected to the other end of capacitor C42. Pin 33 of the digital-to-analog converter U10 is connected to analog ground.

5. A stimulation and collection device according to claim 4, wherein, The electrostimulation module mainly includes optocoupler U12, optocoupler U13, field-effect transistor Q4, field-effect transistor Q5, amplifier U8A, and amplifier U8B. Optocoupler U12 and optocoupler U13 are used for isolating the electrostimulation signal, field-effect transistor Q4 and field-effect transistor Q5 are used as pulse modulators or switching regulators for the electrostimulation signal, and amplifier U8A and amplifier U8B are used for amplifying and filtering the electrostimulation signal. Pin 1 of optocoupler U12 is connected to PWM1 terminal via resistor R97, pin 3 of optocoupler U12 is grounded, pin 4 of optocoupler U12 is connected to analog ground, pin 5 of optocoupler U12 is connected to one end of resistor R6, one end of resistor R35 and one end of resistor R37 respectively, and pin 6 of optocoupler U12 is connected to the other end of resistor R6 and analog voltage 3.3V respectively. Pin 1 of MOSFET Q4 is connected to analog ground. Pin 2 of MOSFET Q4 is connected to the other end of resistor R35. Pin 3 of MOSFET Q4 is connected to one end of resistor R41. Pin 4 of MOSFET Q4 is connected to analog ground. Pin 5 of MOSFET Q4 is connected to the other end of resistor R37. Pin 6 of MOSFET Q4 is connected to one end of resistor R39. The other end of resistor R39 is connected to the base of transistor Q7 and one end of resistor R33. The other end of resistor R33, after passing through the emitter of transistor Q7, is connected to one end of capacitor C33 and a voltage of 25V. The other end of capacitor C33 is connected to analog ground. The collector of transistor Q7 is connected to one end of resistor R43 and one end of bismuth diode DC9. One end of bismuth diode DC9 is also connected to terminal CHA1. Terminal CHA1 is connected to the positive terminal of the stimulation electrode through the adapter. The other end of bismuth diode DC9 is connected to analog ground. The other end of resistor R43 is connected to the collector of transistor Q8. The emitter of transistor Q8 is connected to one end of resistor R53, one end of resistor R55, and the ADC0 terminal, respectively. The other end of resistor R55 is connected to analog ground. The base of transistor Q8 is connected to one end of capacitor C38 and one end of resistor R49, respectively. The other end of capacitor C38 is connected to analog ground. The other end of resistor R49 is connected to one end of capacitor C55 and the output terminal of amplifier U8A, respectively. The other end of capacitor C55 is connected to the other end of resistor R53 and the inverting input terminal of amplifier U8A, respectively. The negative power supply of amplifier U8A is connected to analog ground, and the positive power supply of amplifier U8A is connected to the analog voltage 3.3V and one end of capacitor C35, respectively. The other end of capacitor C35 is grounded. The non-inverting input terminal of amplifier U8A is connected to the other end of resistor R41, one end of resistor R51, one end of resistor R45, and one end of capacitor C36 through resistor R46, respectively. The other end of capacitor C36 is connected to analog ground, the other end of resistor R51 is connected to analog ground, and the other end of resistor R45 is connected to terminal DAC1S.

6. A stimulation and collection device according to claim 3, wherein, The U26 analog-to-digital converter, model ADS1292IRSMT, features a built-in programmable gain amplifier, internal reference, and onboard oscillator.

7. The stimulation and collection device of claim 4, wherein, The U10 digital-to-analog converter is model DAC8812, a dual-channel 16-bit current-output digital-to-analog converter.

8. The stimulation and collection device of claim 5, wherein, The optocoupler U12 and optocoupler U13 are model number TLP109, and the field-effect transistors Q4 and Q5 are model number 2N7002KDW.

9. The stimulation and collection device of claim 5, wherein, The model number of amplifiers U8A and U8B is GS8552-SR.

10. The stimulation and collection device of claim 5, wherein, Transistors Q6 and Q7 are PNP type transistors, while transistors Q8 and Q9 are NPN type transistors.

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