Electrical stimulation device and electrical stimulation system

Abstract

The utility model provides an electrical stimulation device and an electrical stimulation system, the electrical stimulation device comprises a control module and a plurality of electrical stimulation modules, a plurality of control output ends of the control module are respectively connected with control input ends of the plurality of electrical stimulation modules one by one, and the control module is used for respectively controlling each electrical stimulation module to generate stimulation current; each electrical stimulation module comprises a constant current circuit module, a current adjusting circuit module and a stimulation electrode; the output end of the constant current circuit module is connected with the stimulating electrode and is used for outputting a stimulating current signal to the stimulating electrode; the current adjusting circuit module is connected with the constant current circuit module, and the control input end of the current adjusting circuit module serves as the control input end of the electrical stimulation module; the control module is used for controlling the current adjusting circuit module to adjust the stimulation current input to the stimulation electrode by the constant current circuit module. According to the utility model, the flexibility of applying electrical stimulation by the stimulation electrode can be improved, and the suitability of the electrical stimulation device in different application scenes can be improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical stimulation technology, and more specifically to an electrical stimulation device and an electrical stimulation system. Background Technology

[0002] By applying electrical stimulation to a subject, its biological tissues can be affected, producing physiological responses. Based on this principle, devices capable of generating electrical stimulation can be widely used in various fields such as medical testing, rehabilitation therapy, and sports science.

[0003] For example, electrical stimulation can be applied to the painful area of ​​a subject to relieve pain. Another example is applying electrical stimulation to the brain of a subject to investigate the activity patterns of neurons. Yet another example is applying electrical stimulation to the muscles of a subject to diagnose muscle-related diseases based on the physiological responses of the muscles. If electrical stimulation can be applied more effectively, it can be applied to various scenarios; therefore, how to better apply electrical stimulation is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The present invention addresses the aforementioned problems. The present invention provides an electrical stimulation device and an electrical stimulation system.

[0005] According to one aspect of the present invention, an electrical stimulation device is provided, comprising: a control module and a plurality of electrical stimulation modules, wherein...

[0006] The multiple control output terminals of the control module are connected to the control input terminals of multiple electrical stimulation modules, respectively, to control each electrical stimulation module to generate a stimulation current.

[0007] Each electrical stimulation module includes: a constant current circuit module, a current regulation circuit module, and stimulation electrodes;

[0008] The output of the constant current circuit module is connected to the stimulation electrode and is used to output a stimulation current signal to the stimulation electrode.

[0009] The current regulation circuit module is connected to the constant current circuit module, and the control input terminal of the current regulation circuit module serves as the control input terminal of the electrical stimulation module.

[0010] The control module is used to control the current regulation circuit module to adjust the stimulation current input from the constant current circuit module to the stimulation electrode.

[0011] For example, the current regulation circuit module includes a bridge regulation circuit module, wherein,

[0012] The bridge-type regulating circuit module is connected in series between the constant current circuit module and the stimulation electrode;

[0013] The control input terminal of the bridge regulating circuit is connected to the first control output terminal of the control module;

[0014] The control module is used to output a first control signal to adjust the direction of the stimulation current.

[0015] For example, the current regulation circuit module includes a maximum current amplitude regulation module, wherein,

[0016] The voltage output terminal of the maximum current amplitude adjustment module is connected to the voltage input terminal of the constant current circuit module, and is used to output the target voltage value to the constant current circuit module.

[0017] The control input terminal of the maximum current amplitude adjustment module is connected to the second control output terminal of the control module;

[0018] The control module is used to output a second control signal to adjust the target voltage value input to the constant current circuit module.

[0019] For example, the current regulation circuit module includes a current magnitude regulation module, wherein,

[0020] The control output terminal of the current magnitude adjustment module is connected to the control input terminal of the constant current circuit module;

[0021] The control input terminal of the current magnitude adjustment module is connected to the third control output terminal of the control module;

[0022] The control module is used to output a third control signal to adjust the magnitude of the stimulation current output by the constant current circuit module.

[0023] For example, the control output terminal of the control module is connected to the control input terminals of multiple electrical stimulation modules one by one via couplers.

[0024] For example, the first control output terminal of the control module includes a fourth control output terminal and a fifth control output terminal;

[0025] The control input terminals of the bridge-type regulating circuit module also include a first signal input terminal and a second signal input terminal.

[0026] The fourth control output terminal of the control module is connected to the first signal input terminal of the bridge regulating circuit module to output a first signal to the bridge regulating circuit module. The second output terminal of the control module is connected to the second signal input terminal of the bridge regulating circuit module to output a second signal to the bridge regulating circuit module. The first signal and the second signal are interlocked signals and are used to control the conduction of different circuits in the bridge regulating circuit module.

[0027] For example, the electrical stimulation device also includes a pulse width modulation module, the output of which is connected to the input of each bridge modulation circuit module.

[0028] For example, the control module includes programmable logic circuitry and a processing module, wherein,

[0029] The first output terminal of the processing module is connected to the input terminal of the maximum current amplitude adjustment module in each electrical stimulation module, and is used to drive the maximum current amplitude adjustment module to adjust the voltage input to the connected bridge regulation circuit module;

[0030] The second output terminal of the processing module is connected to the input terminal of the programmable logic circuit, and the output terminal of the programmable logic circuit is connected to the bridge adjustment circuit module in each electrical stimulation module. The programmable logic circuit is used to drive the bridge adjustment circuit module to adjust the direction of the current input to the connected stimulation electrode under the control of the processing module.

[0031] For example, the maximum current amplitude regulation module includes a boost DC-DC converter.

[0032] According to another aspect of this utility model, an electrical stimulation system is also provided, which includes the aforementioned electrical stimulation device, sensor, and host computer, wherein...

[0033] The host computer connects to the control module and sensors of the electrical stimulation device.

[0034] The sensor is used to collect physiological data of the subject under electrical stimulation when the electrical stimulation device generates a stimulation current;

[0035] The host computer is used to drive and control the control module to control each electrical stimulation module to generate stimulation current and to receive physiological data from the sensor and process it.

[0036] According to the above-described solution provided by this utility model, the electrostimulation device may include multiple electrostimulation modules. For each electrostimulation module, the stimulation current of the stimulation electrode in that module can be adjusted by a current adjustment circuit module. In this solution, each stimulation electrode is equipped with an independent current adjustment circuit module, thus improving the flexibility of applying electrostimulation and enhancing the adaptability of the electrostimulation device in different application scenarios. Specifically, each stimulation electrode in this solution can apply electrostimulation simultaneously or sequentially to the electrostimulation target, and the intensity of the electrostimulation applied by the stimulation electrode can be adjusted separately. For example, when it is necessary to restore locally injured muscles of the electrostimulation target, the electrostimulation device in this solution can precisely control the on / off state of the stimulation electrodes located in different muscle regions to apply electrostimulation to the locally injured muscles. Furthermore, different current magnitudes can be used for different muscle regions to adapt to different muscle areas. Attached Figure Description

[0037] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0038] Figure 1 A schematic block diagram of an electrostimulation device according to an embodiment of the present invention is shown;

[0039] Figure 2 A schematic block diagram of an electrostimulation device according to an embodiment of the present invention is shown;

[0040] Figure 3 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown;

[0041] Figure 4 A schematic block diagram of an electrostimulation device according to an embodiment of the present invention is shown;

[0042] Figure 5 A schematic block diagram of an electrostimulation device according to an embodiment of the present invention is shown;

[0043] Figure 6 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown;

[0044] Figure 7 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown;

[0045] Figure 8 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown;

[0046] Figure 9 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown; and

[0047] Figure 10 A schematic block diagram of an electrical stimulation system according to an embodiment of the present invention is shown. Detailed Implementation

[0048] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0049] This utility model provides an electrical stimulation device 100. Figure 1 A schematic block diagram of an electrical stimulation device according to an embodiment of the present invention is shown. Figure 1 As shown, the electrical stimulation device 100 may include a control module 110 and multiple electrical stimulation modules 120.

[0050] Specifically, the multiple control output terminals of the control module 110 are connected one by one to the control input terminals of the multiple electrical stimulation modules 120, respectively, for controlling each electrical stimulation module 120 to generate a stimulation current. The control module 110 may include a processor or microprocessor with data processing capabilities, as described in related technologies, capable of outputting control signals related to the electrical stimulation modules 120.

[0051] The electrical stimulation module 120 can be placed on the stimulation site of the electrical stimulation object through a wearable carrier (such as a patch, headgear, etc.), and apply electrical stimulation to the stimulation site of the electrical stimulation object when the control module 110 outputs a signal to indicate that the electrical stimulation is turned on.

[0052] Each electrical stimulation module 120 may include: a constant current circuit module 121, a current regulation circuit module 122, and a stimulation electrode 123.

[0053] The output terminal of the constant current circuit module 121 is connected to the stimulation electrode 123 and is used to output a stimulation current signal to the stimulation electrode 123. The current adjustment circuit module 122 is connected to the constant current circuit module 121, and the control input terminal of the current adjustment circuit module 122 serves as the control input terminal of the electrical stimulation module 120. The control module 110 is used to control the current adjustment circuit module 122 to adjust the stimulation current input from the constant current circuit module 121 to the stimulation electrode 123.

[0054] The constant current circuit module 121 can be part of the main circuit in the electrical stimulation module 120. If the electrical stimulation module 120 also includes other circuit modules, these other circuit modules can be connected to the constant current circuit module 121 to achieve a personalized electrical stimulation process. In one example, the constant current circuit module 121 may include a transistor, the base of which can be connected to the current regulation circuit module 122, the collector of which can be connected to the stimulation electrode 123, and the emitter of which can be grounded. It should be understood that in practical applications, grounding can be represented by connecting to a resistor with a large resistance value. The transistor in the constant current circuit module 121 can be used to assist the current regulation circuit module 122 in realizing current regulation and / or switching functions. The current regulation circuit module 122 can adjust the current input to the stimulation electrode 123 by changing the magnitude of the current applied to the base, thereby achieving the application of electrical stimulation of different intensities. In this example, the transistor can also be used to achieve current gain, meaning that a relatively small current can be input to the current regulation circuit module 122 to control a relatively large current input to the stimulation electrode 123. It should be understood that the transistor can also achieve electrical isolation between the base and collector, which is beneficial for improving the stability of the electrical stimulation module 120. Alternatively, field-effect transistors or other circuit modules can be used to adjust the structure of the constant current circuit module; this embodiment of the invention is not limited thereto.

[0055] The stimulation electrode 123 may include needle-shaped electrodes, sheet-shaped electrodes, disc electrodes, patch electrodes, etc., depending on the actual situation.

[0056] The control module 110 can adjust the magnitude of the stimulation current input from the current regulation circuit module 122 to the stimulation electrode 123 via a control signal used to adjust the magnitude of the current value.

[0057] According to the above-described solution provided in this embodiment of the present invention, the electrostimulation device 100 may include multiple electrostimulation modules 120. For each electrostimulation module 120, the stimulation current of the stimulation electrode 123 in that module can be adjusted by the current adjustment circuit module 122. In the above solution, each stimulation electrode 123 is equipped with an independent current adjustment circuit module 122, thus improving the flexibility of applying electrostimulation to the stimulation electrode 123 and enhancing the adaptability of the electrostimulation device 100 in different application scenarios. Specifically, each stimulation electrode 123 in the above solution can apply electrostimulation simultaneously or sequentially to the electrostimulation target, and the intensity of the electrostimulation applied by the stimulation electrode 123 can also be adjusted separately. For example, when it is necessary to restore locally injured muscles of the electrostimulation target, the electrostimulation device 100 in the above solution can precisely control the on / off state of the stimulation electrodes located in different muscle regions to apply electrostimulation to the locally injured muscles. Alternatively, different current magnitudes can be used for different muscle regions to adapt to different muscle regions.

[0058] For example, the control output terminal of the control module is connected to the control input terminals of multiple electrical stimulation modules one by one via couplers.

[0059] The aforementioned couplers may include electromagnetic couplers, optocouplers, etc.

[0060] According to the above-described solution of this utility model, electrical isolation between the control module and the electrical stimulation module can be achieved through a coupler, thereby preventing abnormal current from flowing back to the control module and reducing the probability of damage to the control module. Furthermore, achieving electrical isolation also facilitates the relative independence of the control module and the electrical stimulation module, making it easier to test or maintain these modules individually.

[0061] For example, refer to Figure 2 , Figure 2 A schematic block diagram of an electrical stimulation device according to one embodiment of the present invention is shown. Figure 2 The current regulation circuit module 122 includes a bridge regulation circuit module 1223. The bridge regulation circuit module 1223 is connected in series between the constant current circuit module 121 and the stimulation electrode 123. The control input terminal of the bridge regulation circuit module 1223 is connected to the first control output terminal of the control module 110. The control module 110 is used to output a first control signal to adjust the direction of the stimulation current.

[0062] Combination Figure 3 , Figure 3A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown. The bridge-type adjustment circuit module 1223 may include four switching modules. Each switching module may include an optocoupler and a transistor. The output terminal of the optocoupler is connected to the base of the transistor. When the light-emitting diode (LED) in the optocoupler is lit, the phototransistor in the optocoupler conducts, thereby conducting the transistor, thus enabling the switching module to which the optocoupler belongs to to conduct. Specifically, the first control output terminal of the control module 110 may output a first control signal, which can control the conduction of the light-emitting diode in the optocoupler. The light-emitting diode may be connected to an electrical measurement module to measure the current magnitude or other modules to achieve corresponding functions; this embodiment of the present invention does not impose limitations. The four switching modules are arranged from top to bottom and from left to right in the figure as the high-side left arm, the high-side right arm, the low-side left arm, and the low-side right arm. The control module 110 can control the high-side left arm and the low-side right arm to conduct via a first control signal, thereby adjusting the direction of the stimulation current of the stimulation electrode 123 from the high-side left arm to the low-side right arm. The control module 110 can also control the low-side left arm and the high-side right arm to conduct via the first control signal, thereby adjusting the direction of the stimulation current of the stimulation electrode 123 from the high-side right arm to the low-side left arm. It should be understood that the switching module may not use an optocoupler for isolation; it only needs to achieve the switching function to adjust the direction of the stimulation current. The figure also includes several resistors and capacitors. Resistors can be used for current limiting or providing bias. In some examples, other electrical components, such as transistors, couplers, and appliances, can also be connected in the bridge adjustment circuit module 1223 according to actual needs. These will not be elaborated upon in this embodiment.

[0063] According to the above-described solution provided in this embodiment of the present invention, the direction of the stimulation current can be adjusted by the bridge-type adjustment circuit module 1223. On the one hand, this reduces the possibility that a unidirectional stimulation current may cause the accumulation of harmful electrolytic products in the stimulation site of the electrostimulated object, thus reducing the probability of damage to the stimulation site. On the other hand, continuous use of unidirectional current may cause discomfort to the patient, such as stinging or burning sensations. Therefore, the electrostimulation device of this invention provides a better user experience. Furthermore, since each electrostimulation module can adjust the direction of the stimulation current through its own bridge-type adjustment circuit module 1223, the electrostimulation process is more flexible and adaptable to different application scenarios.

[0064] For example, the electrical stimulation device 100 may also include a pulse width modulation module (not shown), the output of which is connected to the input of each bridge regulation circuit module 1223.

[0065] The input terminal of the aforementioned pulse width modulation module can be connected to the control module 110. By receiving the control signal related to pulse width modulation sent by the control module 110, the current of the bridge regulation circuit module 1223 can be adjusted to control the average output power.

[0066] For example, refer to Figure 4 , Figure 4 A schematic block diagram of an electrical stimulation device according to one embodiment of the present invention is shown. Figure 4 The current regulation circuit module 122 may include a maximum current amplitude regulation module 1221. The voltage output terminal of the maximum current amplitude regulation module 1221 is connected to the voltage input terminal of the constant current circuit module 121, and is used to output a target voltage value to the constant current circuit module 121. The control input terminal of the maximum current amplitude regulation module 1221 is connected to the second control output terminal of the control module 110. The control module 110 is used to output a second control signal to adjust the magnitude of the target voltage value input to the constant current circuit module 121.

[0067] The aforementioned maximum current amplitude adjustment module 1221 only needs to provide a stable voltage, and its specific structure can be set according to the actual needs of the developers. For example, the maximum current amplitude adjustment module 1221 may include a control chip, which may include a BIAS pin (bias pin), a VCC pin (power supply pin), an SW pin (switch pin), an FB pin (feedback pin, used for voltage detection), a PGOOD pin (power good indicator pin), a COMP pin (compensation pin, used to improve circuit stability), a MODE pin (chip operating mode pin), an RT pin (clock frequency setting pin), an SS pin (start pin), an UVLO pin (undervoltage lockout pin), a PGND pin (power ground pin), and an AGND pin (analog ground pin). Resistors or capacitors connected to the above pins can be used to implement the corresponding functions of the pins, which will not be elaborated here in this embodiment of the present invention. The aforementioned control chip can provide a stable voltage. SUPPLY Transformed into V required for real-world scenarios LOAD The V LOAD This can be used as the target voltage value output to the constant current circuit module 121. In one example, V SUPPLY The voltage value can be preset, and the target voltage value can be dynamically adjusted by the user through the control module 110. The control input terminal of the maximum current amplitude adjustment module 1221 can be the input terminal of the aforementioned control chip, that is, the control module 110 can adjust the target voltage value output by the control chip through the second control signal to achieve the application of electrical stimulation of different intensities through the stimulation electrode 123.

[0068] According to the above-described solution provided in this embodiment of the present invention, the target voltage value can be output by the maximum current amplitude adjustment module 1221 to adjust the electrical stimulation intensity of the stimulation electrode. The above solution offers high flexibility in electrical stimulation. For example, different target voltage values ​​can be used for different stimulation sites of the subject to adapt the required electrical stimulation intensity to different stimulation sites. Furthermore, different target voltage values ​​can be used for subjects of different age groups to avoid damage to the stimulation sites. The above solution improves adaptability to different application scenarios.

[0069] For example, the maximum current amplitude regulation module 1221 may include a boost DC converter.

[0070] A boost DC-DC converter can operate when the input voltage is lower than the required output voltage. It boosts the voltage through switching operation and inductor energy storage, thereby increasing the magnitude of the stimulation current, which helps to meet the adaptability of different scenarios.

[0071] For example, refer to Figure 5 , Figure 5 A schematic block diagram of an electrical stimulation device according to one embodiment of the present invention is shown. Figure 5 The current regulation circuit module 122 may include a current magnitude regulation module 1222. The control output terminal of the current magnitude regulation module 1222 is connected to the control input terminal of the constant current circuit module 121. The control input terminal of the current magnitude regulation module 1222 is connected to the third control output terminal of the control module 110. The control module 110 is used to output a third control signal to adjust the magnitude of the stimulation current output by the constant current circuit module 121.

[0072] The current magnitude adjustment module 1222 can be used to output a specified value of stimulation current to the constant current module 121 within a set current range. In one example, the current magnitude adjustment module 1222 can be directly or indirectly connected to a constant voltage power supply to adjust the magnitude of the stimulation current within a fixed current range. In another example, the current magnitude adjustment module 1222 can be directly or indirectly connected to the maximum current amplitude adjustment module 1221 to adjust the magnitude of the stimulation current within an adjustable current range.

[0073] See Figure 6 , Figure 6 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown, in conjunction with... Figure 6The current magnitude adjustment module may include an amplifier and several resistors. The non-inverting input of the amplifier can be connected to the control module 110, and its inverting input can be connected to a feedback resistor to form negative feedback, enabling the amplifier to operate in the linear region and stabilize the output voltage. The output of the amplifier can be connected to a sampling resistor, which can be connected to the base of a transistor in the constant current circuit module 121. When the input voltage of the amplifier changes, the voltage input to the base of the transistor also changes, thereby adjusting the magnitude of the stimulation current. Other electrical components may also be added to this current magnitude adjustment module.

[0074] According to the above-described solution provided in this embodiment of the present invention, the magnitude of the stimulation current output by the constant current circuit module 121 can be adjusted by the current magnitude adjustment module 1222 to regulate the electrical stimulation intensity of the stimulation electrode. The above solution offers high flexibility in electrical stimulation. For example, different magnitudes of stimulation current can be used for different stimulation sites of the subject to adapt to the required electrical stimulation intensity. Furthermore, if the subject finds the current stimulation intensity difficult to tolerate, the magnitude of the stimulation current can be adjusted to a suitable level in real time to improve the subject's comfort.

[0075] See Figure 7 and Figure 8 , Figure 7 and Figure 8 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown, in conjunction with... Figure 7 and Figure 8 In this embodiment, the current regulation circuit module 122 may include a maximum current amplitude regulation module 1221, a current magnitude regulation module 1222, and a bridge regulation circuit module 1223.

[0076] The control input terminal of the maximum current amplitude adjustment module 1221 is connected to the second control output terminal of the control module 110. The control module 110 is used to output a second control signal to adjust the target voltage value input to the constant current circuit module 121. The voltage output terminal of the maximum current amplitude adjustment module 1221 is connected to the voltage input terminal of the constant current circuit module 121, and is used to output the target voltage value to the constant current circuit module 121.

[0077] The control output terminal of the current magnitude adjustment module 1222 is connected to the control input terminal of the constant current circuit module 121. The control input terminal of the current magnitude adjustment module 1222 is connected to the third control output terminal of the control module 110. The control module 110 is used to output a third control signal to adjust the magnitude of the stimulation current output by the constant current circuit module 121.

[0078] The bridge adjustment circuit module 1223 is connected in series between the constant current circuit module 121 and the stimulation electrode 123. The control input terminal of the bridge adjustment circuit module 1223 is connected to the first control output terminal of the control module 110. The control module 110 is used to output a first control signal to adjust the direction of the stimulation current.

[0079] Figure 8 The electrical components in this embodiment are not described in detail here, but can be found in other sources. Figure 3 , Figure 6 Related descriptions.

[0080] In this embodiment, the intensity of electrical stimulation applied by the stimulation electrode, the maximum intensity of electrical stimulation, and the direction of the stimulation current can be adjusted by the control module 110, which helps to improve the adaptability of the electrical stimulation device 100 to different actual scenarios.

[0081] For example, the first control output terminal of the control module 110 includes a fourth control output terminal and a fifth control output terminal.

[0082] The control input terminals of the bridge-type regulating circuit module also include a first signal input terminal and a second signal input terminal.

[0083] The fourth control output terminal of control module 110 is connected to the first signal input terminal of bridge regulating circuit module 1223 to output a first signal to bridge regulating circuit module 1223. The second output terminal of control module 110 is connected to the second signal input terminal of bridge regulating circuit module 1223 to output a second signal to bridge regulating circuit module 1223. The first and second signals are interlocked signals and are used to control the conduction of different circuits in bridge regulating circuit module 1223.

[0084] The first and second signals mentioned above are interlocked signals; therefore, when the first signal is high, the second signal is low, and vice versa. For example, when the first signal is high, Figure 3 The high-side left arm and low-side right arm of the bridge-type regulating circuit module 1223 are conductive. When the second signal is high, the low-side left arm and high-side right arm of the bridge-type regulating circuit module 1223 are conductive. Therefore, the direction of the stimulation current can be controlled via the bridge-type regulating circuit module 1223.

[0085] According to the above-described solution provided by the present utility model embodiment, the bridge adjustment circuit module 1223 can achieve orderly control of the direction of the stimulation current by using an interlock signal, and can also avoid component damage caused by the bridge adjustment circuit module 1223 simultaneously conducting the left arm or simultaneously conducting the right arm.

[0086] For example, see Figure 9, Figure 9 A schematic diagram of an electrical stimulation device according to an embodiment of the present invention is shown, in conjunction with... Figure 9 The control module 110 may include a programmable logic circuit 111 and a processing module 112.

[0087] The aforementioned programmable logic circuits can be Field-Programmable Gate Arrays (FPGAs), Complex Programmable Logic Devices (DPLDs), etc. The aforementioned processing modules can be processors or microprocessors in related technologies (e.g., ARM-based microprocessors).

[0088] The first output terminal of the processing module 112 is connected to the input terminal of the maximum current amplitude adjustment module 1221 in each electrical stimulation module 120, and is used to drive the maximum current amplitude adjustment module 1221 to adjust the voltage input to the connected bridge regulation circuit module 1223.

[0089] The second output terminal of the processing module 112 is connected to the input terminal of the programmable logic circuit 111, and the output terminal of the programmable logic circuit is connected to the bridge adjustment circuit module 1223 in each current adjustment circuit module 122. The programmable logic circuit is used to drive the bridge adjustment circuit module 1223 to adjust the direction of the current input to the connected stimulation electrode 123 under the control of the processing module.

[0090] According to the above-described solution provided by the embodiments of this utility model, the data processing capabilities of the integrated processing module and the programmable logic circuit can be combined to efficiently control the electrostimulation device. Specifically, the processing module is better suited to handling complex tasks, while the programmable logic circuit excels at parallel processing and implementing customized hardware functions. Combining the two can effectively allocate computing resources. Furthermore, in some scenarios, the programmable logic circuit can serve as part of an anomaly detection mechanism. The processing module can monitor the state of the programmable logic circuit and take corresponding measures when an anomaly is detected, which helps to improve the stability of the electrostimulation device.

[0091] This utility model embodiment also provides an electrical stimulation system 200. Figure 10 A schematic block diagram of an electrostimulation system according to an embodiment of the present invention is shown. Figure 10 As shown, the electrical stimulation system 200 may include an electrical stimulation device 100, a sensor 210, and a host computer 220.

[0092] The host computer 220 connects to the control module 110 and sensor 210 of the electrical stimulation device 100. The sensor 210 is used to collect physiological data of the subject under electrical stimulation when the electrical stimulation device 100 generates a stimulation current. The host computer 220 drives the control module 110 to control each electrical stimulation module 120 to generate a stimulation current and receives and processes physiological data from the sensor 210.

[0093] According to the above-described solution provided in the embodiments of this utility model, physiological data of the electrically stimulated object can be collected by the sensor 210, which is beneficial for subsequent analysis of the physiological data of the electrically stimulated object.

[0094] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0095] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0096] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0097] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein. This utility model has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the scope of the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electrical stimulation device, characterized by The device comprises a control module and a plurality of electric stimulation modules, wherein, a plurality of control outputs of the control module are connected to control inputs of the plurality of electric stimulation modules respectively, for controlling each electric stimulation module to generate a stimulation current respectively; each electric stimulation module comprises a constant current circuit module, a current adjusting circuit module and a stimulation electrode; an output of the constant current circuit module is connected to the stimulation electrode, for outputting a stimulation current signal to the stimulation electrode; the current adjusting circuit module is connected to the constant current circuit module, and a control input of the current adjusting circuit module is used as the control input of the electric stimulation module; the control module is used for controlling the current adjusting circuit module to adjust the stimulation current input to the stimulation electrode by the constant current circuit module.

2. The apparatus of claim 1, wherein, The current adjusting circuit module comprises a bridge adjusting circuit module, wherein, the bridge adjusting circuit module is connected in series between the constant current circuit module and the stimulation electrode; a control input of the bridge adjusting circuit is connected to a first control output of the control module; the control module is used for outputting a first control signal to adjust the direction of the stimulation current.

3. The apparatus of claim 1, wherein, The current adjusting circuit module comprises a maximum current amplitude adjusting module, wherein, a voltage output of the maximum current amplitude adjusting module is connected to a voltage input of the constant current circuit module, for outputting a target voltage value to the constant current circuit module; a control input of the maximum current amplitude adjusting module is connected to a second control output of the control module; the control module is used for outputting a second control signal to adjust the size of the target voltage value input to the constant current circuit module.

4. The apparatus of claim 1, wherein, The current adjusting circuit module comprises a current size adjusting module, wherein, a control output of the current size adjusting module is connected to a control input of the constant current circuit module; a control input of the current size adjusting module is connected to a third control output of the control module; the control module is used for outputting a third control signal to adjust the size of the stimulation current output by the constant current circuit module.

5. The apparatus of claim 1, wherein, The control outputs of the control module are connected to the control inputs of the plurality of electric stimulation modules respectively through couplers.

6. The device of claim 2, wherein, the first control output of the control module comprises a fourth control output and a fifth control output; the control input of the bridge adjusting circuit module further comprises a first signal input and a second signal input, wherein the fourth control output of the control module is connected to the first signal input of the bridge adjusting circuit module to output a first signal to the bridge adjusting circuit module, and the second output of the control module is connected to the second signal input of the bridge adjusting circuit module to output a second signal to the bridge adjusting circuit module, the first signal and the second signal are interlocking signals and are used to control different circuits in the bridge adjusting circuit module to be turned on.

7. The apparatus of claim 2, wherein, The device further comprises a pulse width modulation module, and an output of the pulse width modulation module is connected to a respective input of each bridge adjusting circuit module.

8. The apparatus of claim 2, wherein, The control module comprises a programmable logic circuit and a processing module, wherein, The first output of the processing module is connected to the input of the maximum current amplitude adjustment module in each electric stimulation module, for driving the maximum current amplitude adjustment module to adjust the size of the voltage input to the connected bridge adjustment circuit module; The second output of the processing module is connected to the input of the programmable logic circuit, and the output of the programmable logic circuit is connected to the bridge adjustment circuit module in each electric stimulation module, and the programmable logic circuit is used for driving the bridge adjustment circuit module to adjust the direction of the current input to the connected stimulation electrode under the control of the processing module.

9. The apparatus of claim 3, wherein, The maximum current amplitude adjustment module comprises a boost DC converter.

10. An electrical stimulation system, characterized by The system comprises the electric stimulation device, the sensor and the host computer according to claim 1, wherein, The host computer is connected to the control module of the electric stimulation device and the sensor, The sensor is used for collecting physiological data of the electric stimulation object when the electric stimulation device generates stimulation current; The host computer is used for driving the control module to control each electric stimulation module to generate stimulation current and receive and process the physiological data from the sensor.

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