A cross current output device based on electrode polarity reversal

Abstract

This invention proposes a cross-current output device based on electrode polarity reversal, comprising an electrode output terminal, an electrode group selection module, a main control unit, a polarity control module, and a synchronous monitoring module. The electrode group selection module has multiple preset electrode combinations built in, each preset electrode combination corresponding to an electrode group connected to the electrode output terminal. The main control unit calls one of the preset electrode combinations to determine the target electrode group and controls the polarity control module to alternately switch the positive and negative connection states of the output path corresponding to at least one group of electrodes in the target electrode group according to a preset timing sequence. The synchronous monitoring module collects the polarity state information and timing information of each electrode in the target electrode group, and sends a correction control signal to the main control unit when the timing information is inconsistent with the preset timing information, so that the electrode output terminal forms a cross-current output based on the alternating switching of the positive and negative connection states, thereby improving the consistency and stability of the output process.

Description

Technical Field

[0001] This invention relates to the field of electrical stimulation control technology, and in particular to a cross-current output device based on electrode polarity reversal. Background Technology

[0002] Electrical stimulation technology is widely used in rehabilitation training, muscle activation, and local function improvement, especially in stimulating specific functional areas such as the pelvic floor muscles, where high demands are placed on the stimulation range, concentration of action, and output stability. Existing multi-electrode electrical stimulation devices typically output electrical pulse signals of fixed polarity through multiple sets of electrodes to achieve stimulation of the target area. While these devices can meet general stimulation needs, there is still room for further optimization when providing more concentrated and targeted stimulation to specific functional areas.

[0003] On the one hand, the electrode combination and output polarity in existing devices are mostly fixed, making it difficult to flexibly adjust them according to the structural characteristics of different target areas, and the targeting of local stimulation needs to be improved; on the other hand, when multiple sets of electrodes work together to output, if there is a lack of coordinated control over the output path state and switching sequence of the corresponding electrodes, there may be a deviation between the actual output state and the preset state, which will affect the consistency and stability of the stimulation process. Summary of the Invention

[0004] In view of this, it is necessary to provide a cross-current output device based on electrode polarity reversal to solve the above problems.

[0005] Embodiments of this application provide a cross-current output device based on electrode polarity reversal, comprising: The electrode output terminal connects to multiple sets of electrodes. The electrode selection module has multiple preset electrode combinations built in, and each preset electrode combination corresponds to an electrode group connected to the electrode output terminal. The main control unit is connected to the electrode group selection module, polarity control module, and synchronous monitoring module. The polarity control module is connected to the electrode output terminal; The main control unit calls one of the preset electrode combinations to determine the target electrode group, and controls the polarity control module to alternately switch the positive and negative connection states of the output path corresponding to at least one set of electrodes in the target electrode group according to a preset timing sequence. The synchronous monitoring module collects the polarity state information and timing information of each electrode in the target electrode group, and sends a correction control signal to the main control unit when the collected timing information is inconsistent with the preset timing information. The main control unit controls the polarity control module to correct the positive and negative connection states of the output paths corresponding to at least one set of electrodes according to the correction control signal, so that the electrode output terminal forms a cross current output based on the alternating switching of the positive and negative connection states.

[0006] Implementing a cross-current output device based on electrode polarity reversal according to this embodiment will have at least the following beneficial effects: The aforementioned cross-current output device based on electrode polarity reversal uses an electrode selection module in conjunction with a main control unit to select a target electrode group by calling a preset electrode combination. This allows the device to perform more targeted electrode selection for specific functional areas such as the pelvic floor muscles, improving the adaptability between the electrode combination and the stimulation scenario. Furthermore, the polarity control module alternately switches the positive and negative connection states of the output path corresponding to at least one set of electrodes in the target electrode group according to a preset timing sequence, resulting in cross-current output at the electrode output terminals. This helps to concentrate the current effect on specific functional areas, improving the targeting of the stimulation. Simultaneously, a synchronous monitoring module collects the polarity state and timing information of each electrode and sends a correction control signal when the information deviates from the preset timing information. This allows the main control unit to make timely corrections, thereby reducing the deviation between the actual output state and the preset state and improving the stability and consistency of the cross-current output process. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] in: Figure 1 This is an overall functional block diagram of a cross-current output device based on electrode polarity reversal according to this application; Figure 2 This is a schematic diagram illustrating the selection relationship between the target electrode group and the polarity switching object in this application; Figure 3 This is a schematic diagram of the connection status at the first switching moment in this application; Figure 4 This is a schematic diagram of the connection status at the second switching moment in this application; Figure 5 This is a schematic diagram of the preset timing in this application; Figure 6 This is a schematic diagram of the synchronous monitoring and correction control process in this application.

[0009] Explanation of key component symbols: 100. Cross-current output device based on electrode polarity reversal; 10. Electrode output terminal; 20. Electrode group selection module; 30. Main control unit; 40. Polarity control module; 50. Synchronous monitoring module; 60. Target electrode group; 61. First electrode group; 62. Second electrode group; 611. Polarity switching object in the first electrode group; 621. Polarity switching object in the second electrode group; 70. Switching unit; 80. Current regulation module. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Please see Figures 1 to 6 , Figure 1 This paper presents an overall functional block diagram of a cross-current output device 100 based on electrode polarity reversal according to this application. Figure 2 The selection relationship between the target electrode group 60 and the polarity switching object is shown. Figure 3 The connection status at the first handover moment is shown. Figure 4 The connection status at the second switching moment is shown. Figure 5 The preset timing of the output path corresponding to the polarity switching object is shown. Figure 6 The process of cross current output and synchronous monitoring and correction is shown.

[0012] In one specific embodiment, the cross-current output device 100 based on electrode polarity reversal is used to perform electrical stimulation output on a target area, which may be a functional area such as the pelvic floor muscles that requires directional stimulation, concentrated stimulation, and stable stimulation.

[0013] Specifically, such as Figure 1 As shown, the cross-current output device 100 based on electrode polarity reversal includes an electrode output terminal 10, an electrode group selection module 20, a main control unit 30, a polarity control module 40, and a synchronous monitoring module 50.

[0014] In another specific embodiment, a current adjustment module 80 is also included. The electrode output terminal 10 connects to multiple sets of electrodes to form an external output interface, enabling different electrode sets to participate in stimulation output within the same device. This provides the device with a basis for switching between multiple electrode sets, facilitating the selection of appropriate output combinations around different target areas. The electrode set selection module 20 has multiple preset electrode combinations built-in, each preset electrode combination corresponding to an electrode set connected to the electrode output terminal 10. The main control unit 30 is connected to the electrode set selection module 20, the polarity control module 40, and the synchronization monitoring module 50, respectively. It is used to call one of the preset electrode combinations to determine the target electrode set 60, and after determining the target electrode set 60, controls the polarity control module 40 to alternately switch the positive and negative connection states of the output paths corresponding to at least one set of electrodes in the target electrode set 60 according to a preset timing sequence. The synchronous monitoring module 50 is used to collect the polarity state information and timing information of each electrode in the target electrode group 60, and send a correction control signal to the main control unit 30 when the collected timing information is inconsistent with the preset timing information. The main control unit 30 controls the polarity control module 40 to correct the positive and negative connection states of the output paths corresponding to the at least one group of electrodes according to the correction control signal, so that the electrode output terminal 10 forms a cross current output based on the alternating switching of the positive and negative connection states.

[0015] Therefore, the output combination range is first determined by the electrode group selection module 20, and then the polarity control module 40 implements the alternation of positive and negative connection states. With the participation of the synchronous monitoring module 50, the actual switching process is continuously checked and corrected, so that the entire output process unfolds in an orderly manner around the target electrode group 60.

[0016] In one specific embodiment, the electrode selection module 20 can have 2 to 4 preset electrode combination schemes built-in to correspond to different target areas or different stimulation requirements. The electrode selection module 20 can communicate with the main control unit 30 through a GPIO interface to realize the calling of preset electrode combinations and the rapid switching of electrode groups. The main control unit 30 can use a microcontroller or a control chip as the core control component.

[0017] In another specific embodiment, the main control unit 30 can use an ARM Cortex-M series microcontroller as the core control chip, or it can use an STM32 series microcontroller as the core control chip, as long as it can achieve coordinated control of the electrode group selection module 20, polarity control module 40, synchronous monitoring module 50 and current regulation module 80.

[0018] Therefore, the main control unit 30 can complete instruction parsing, target electrode group 60 determination, positive and negative connection state switching control, state judgment and correction control output under the same control center, making the overall control relationship of the device more centralized.

[0019] Furthermore, such as Figure 2 As shown, among multiple preset electrode combinations, after the main control unit 30 calls one of the preset electrode combinations, the electrode group selection module 20 selects the corresponding electrode group to form the target electrode group 60. Figure 2 The diagram shows the electrode output terminal 10 and multiple sets of electrodes disposed thereon in a planar arrangement. The target electrode group 60 includes a first electrode group 61 and a second electrode group 62. The main control unit 30 selects at least one electrode from the first electrode group 61 and the second electrode group 62 as the polarity switching target. Specifically, the polarity switching target in the first electrode group 61 is 611, and the polarity switching target in the second electrode group 62 is 621. Therefore, the target electrode group 60 is not limited to the group level, but is further defined down to the polarity switching target 611 in the first electrode group 61 and the polarity switching target 621 in the second electrode group 62, giving subsequent state switching a clearly defined target.

[0020] It should be noted that, in another specific embodiment, the preset electrode combination can be pre-set with different first electrode groups 61 and second electrode groups 62 for different target areas, so that the device can form an output combination that is adapted to the target area in different usage locations.

[0021] Specifically, after determining the target electrode group 60, the main control unit 30 controls the polarity control module 40 to alternately switch the positive and negative connection states of the corresponding output paths of the polarity switching objects 611 and 621 according to a preset timing sequence.

[0022] like Figure 3 As shown, at the first switching moment, the output path corresponding to the polarity switching object 611 in the first electrode group 61 is in a positive connection state, and the output path corresponding to the polarity switching object 621 in the second electrode group 62 is in a negative connection state; as Figure 4 As shown, at the second switching moment, the output path corresponding to the polarity switching object 611 in the first electrode group 61 is in the negative connection state, and the output path corresponding to the polarity switching object 621 in the second electrode group 62 is in the positive connection state.

[0023] As a result, the positive and negative connection states of the output paths corresponding to the polarity switching objects 611 and 621 are swapped between the two switching moments, so that the electrode output terminal 10 no longer outputs in a single fixed connection state, but forms a cross current output in an alternating switching manner.

[0024] The above process allows the output current to act more concentratedly around the selected target area, which facilitates the improvement of the targeting of the stimulation process.

[0025] like Figure 5As shown, the preset timing specifies the start time, duration, and switching order of polarity switching objects 611 and 621 when they begin to switch between positive and negative connection states.

[0026] Specifically, between the first switching time t1 and the second switching time t2, the output path corresponding to polarity switching object 611 is in a positive connection state, and the output path corresponding to polarity switching object 621 is in a negative connection state, with a duration of Δt between the two; after the second switching time t2, the output path corresponding to polarity switching object 611 switches to a negative connection state, and the output path corresponding to polarity switching object 621 switches to a positive connection state.

[0027] thus, Figure 3 and Figure 4 The two switching states shown are in Figure 5 Furthermore, by defining the time relationship, the control coordination between the main control unit 30 and the polarity control module 40 not only has a basis for state changes, but also has a clear basis for the start time, duration and switching sequence, thereby making it easier to ensure that the cross current output process has a controllable rhythm.

[0028] Furthermore, in one specific embodiment, the polarity control module 40 includes a switching unit 70, which is disposed in the polarity control module 40. The main control unit 30 outputs a control signal to the switching unit 70, and the switching unit 70 switches the conduction relationship of the corresponding output paths of the polarity switching object 611 and the polarity switching object 621 according to the control signal, so that the corresponding output paths of the polarity switching object 611 and the polarity switching object 621 switch between a positive connection state and a negative connection state.

[0029] Therefore, the state changes in the polarity control module 40 have a more specific implementation method. First, the main control unit 30 issues a control command, then the switching unit 70 changes the conduction relationship, and then the state changes are implemented in the switching between the positive and negative connection states of the corresponding output path, so that the state changes have a clear execution basis.

[0030] In one specific embodiment, the switching unit 70 can be a relay switching circuit to receive the control signal output by the main control unit 30 and switch the conduction relationship of the corresponding output paths of the polarity switching object 611 and the polarity switching object 621. In another specific embodiment, the switching unit 70 can also be a MOSFET switching circuit to achieve the switching of the conduction relationship of the corresponding output paths at a faster response speed. Thus, the implementation of the switching unit 70 can be selected according to the device size, power consumption requirements, and switching response requirements, without changing the basic control method of the polarity control module 40 to switch the positive and negative connection states by switching the conduction relationship.

[0031] like Figure 6 As shown, during the cross-current output process, the synchronous monitoring module 50 continuously collects the polarity state information and timing information of each electrode in the target electrode group 60, and compares the acquired actual polarity state information with the target polarity state corresponding to the preset timing, and compares the acquired actual switching timing information with the target switching timing information corresponding to the preset timing, so as to determine whether the actual switching process is consistent with the preset timing; wherein, at least when the acquired actual switching timing information is inconsistent with the preset timing information, the synchronous monitoring module 50 sends a correction control signal to the main control unit 30. When the actual switching process matches the preset timing, the device continues to perform state acquisition and comparison; when the actual switching process does not match the preset timing, the synchronization monitoring module 50 sends a correction control signal to the main control unit 30, and the main control unit 30 controls the polarity control module 40 to make adjustments according to the correction control signal; in another specific embodiment, the main control unit 30 can also output a correction control signal to control the polarity control module 40 after determining that the actual switching process does not match the preset timing, and the polarity control module 40 adjusts the switching time of the corresponding output paths of polarity switching object 611 and polarity switching object 621 according to the correction control signal, so that the actual switching process corresponds to the preset timing.

[0032] Therefore, during the switching of positive and negative connection states, the device can not only perform alternating switching according to the preset timing sequence, but also continuously check whether the actual state and the target state are consistent, so as to enter the adjustment stage in time when there is a deviation, thereby reducing the accumulation of deviations in the output process.

[0033] In one specific embodiment, the synchronization monitoring module 50 may be equipped with a clock chip and a voltage acquisition unit. The clock chip is used to provide a timing reference, and the voltage acquisition unit is used to acquire the status signals of the corresponding output paths of each electrode to form actual polarity status information and actual switching timing information.

[0034] In another specific embodiment, the synchronization monitoring module 50 can also use an optocoupler sensor instead of the voltage acquisition unit to monitor the electrode polarity state through optical signals. Thus, the synchronization monitoring module 50 can choose a suitable implementation form according to different anti-interference requirements and signal acquisition requirements, but its function of continuously acquiring actual polarity state information and actual switching timing information and comparing it with preset timing information remains unchanged.

[0035] In one specific embodiment, the current adjustment module 80 is connected to the main control unit 30 and the electrode output terminal 10. After determining the target electrode group 60, the main control unit 30 sends an output intensity parameter to the current adjustment module 80. The current adjustment module 80 adjusts the output intensity of the electrode output terminal 10 according to the output intensity parameter. Furthermore, the output intensity parameter also includes a single stimulation duration parameter, and the current adjustment module 80 controls the single stimulation duration according to the single stimulation duration parameter.

[0036] Therefore, based on the determination of the target electrode group 60 and the alternating switching of the output paths corresponding to the polarity switching objects 611 and 621 according to a preset timing sequence, the output intensity and single stimulation duration of the electrode output terminal 10 can also be adjusted synchronously. This allows the cross-current output process to have both state switching control and output parameter adjustment capabilities, facilitating adaptation to the stimulation needs of different target areas. In a specific embodiment, the current adjustment module 80 can integrate a digital potentiometer and an operational amplifier circuit to achieve output adjustment corresponding to the output intensity parameter and the single stimulation duration parameter.

[0037] Specifically, in actual use, the main control unit 30 first calls one of the preset electrode combinations, and selects the corresponding first electrode group 61 and second electrode group 62 through the electrode group selection module 20 to form the target electrode group 60; then, the main control unit 30 sends a control command to the polarity control module 40 according to the preset timing sequence, so that the switching unit 70 changes the conduction relationship of the corresponding output paths of the polarity switching object 611 and the polarity switching object 621, thereby completing the alternation of positive connection state and negative connection state between the first switching time and the second switching time; during this process, the current adjustment module 80 adjusts the output intensity and single stimulation duration of the electrode output terminal 10 according to the output intensity parameter and the single stimulation duration parameter, so that the target area obtains the corresponding cross current output.

[0038] Meanwhile, the synchronous monitoring module 50 continuously collects the polarity state information and timing information of each electrode in the target electrode group 60, and compares it with the target polarity state and target switching timing information corresponding to the preset timing. When the comparison results are consistent, the device maintains the current switching process and continues to output. When the comparison results are inconsistent, the synchronous monitoring module 50 sends a correction control signal to the main control unit 30. The main control unit 30 controls the polarity control module 40 to make adjustments according to the correction control signal. In another specific embodiment, the main control unit 30 can also output a correction control signal to control the polarity control module 40 after determining that the actual switching process is inconsistent with the preset timing. The polarity control module 40 adjusts the switching time accordingly so that the actual switching process corresponds to the preset timing again.

[0039] In summary, the cross-current output device 100 based on electrode polarity reversal, through the coordinated cooperation among the electrode group selection module 20, main control unit 30, polarity control module 40, synchronous monitoring module 50, current adjustment module 80, and switching unit 70, enables the determination of the target electrode group 60, the alternating switching of the positive and negative connection states of the corresponding output paths of polarity switching objects 611 and 621, the formation of cross-current output, and the state correction during the output process to be completed in the same control system, thereby giving the output process better targeting, stability, and adjustability.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A cross-current output device based on electrode polarity reversal, characterized in that, include: The electrode output terminal connects to multiple sets of electrodes. The electrode selection module has multiple preset electrode combinations built in, and each preset electrode combination corresponds to an electrode group connected to the electrode output terminal. The main control unit is connected to the electrode group selection module, polarity control module, and synchronous monitoring module. The polarity control module is connected to the electrode output terminal; The main control unit calls one of the preset electrode combinations to determine the target electrode group, and controls the polarity control module to alternately switch the positive and negative connection states of the output path corresponding to at least one set of electrodes in the target electrode group according to a preset timing sequence. The synchronous monitoring module collects the polarity state information and timing information of each electrode in the target electrode group, and sends a correction control signal to the main control unit when the collected timing information is inconsistent with the preset timing information. The main control unit controls the polarity control module to correct the positive and negative connection states of the output paths corresponding to at least one set of electrodes according to the correction control signal, so that the electrode output terminal forms a cross current output based on the alternating switching of the positive and negative connection states.

2. The cross-current output device based on electrode polarity reversal according to claim 1, characterized in that, Each of the preset electrode combinations specifies a first electrode group and a second electrode group connected to the electrode output terminal. When the main control unit calls any of the preset electrode combinations, the electrode group selection module selects the first electrode group and the second electrode group specified by the preset electrode combination to form the target electrode group.

3. The cross-current output device based on electrode polarity reversal according to claim 2, characterized in that, After the main control unit calls any of the preset electrode combinations, it causes the first electrode group and the second electrode group connected to the electrode output terminal of the preset electrode combination to form the target electrode group, and selects at least one electrode from the first electrode group and the second electrode group as the polarity switching object. The polarity control module is used to change the positive and negative connection state of the output path corresponding to the polarity switching object.

4. The cross-current output device based on electrode polarity reversal according to claim 3, characterized in that, The preset timing specifies the start time, duration, and switching order of the polarity switching objects in the first electrode group and the second electrode group when they begin to switch between positive and negative connection states.

5. A cross-current output device based on electrode polarity reversal according to claim 4, characterized in that, The polarity control module, at the first switching moment, puts the output path corresponding to the polarity switching object in the first electrode group in a positive connection state and puts the output path corresponding to the polarity switching object in the second electrode group in a negative connection state. At the second switching moment, the output path corresponding to the polarity switching object in the first electrode group is in a negative connection state, and the output path corresponding to the polarity switching object in the second electrode group is in a positive connection state.

6. The cross-current output device based on electrode polarity reversal according to claim 5, characterized in that, During the switching of the positive and negative connection states of the output paths corresponding to the polarity switching objects in the first electrode group and the second electrode group, the synchronous monitoring module continuously acquires actual polarity state information and actual switching timing information, compares the acquired actual polarity state information with the target polarity state corresponding to the preset timing, and compares the acquired actual switching timing information with the target switching timing information corresponding to the preset timing to determine whether the actual switching process is consistent with the preset timing.

7. A cross-current output device based on electrode polarity reversal according to claim 6, characterized in that, When the main control unit determines that the actual switching process is inconsistent with the preset timing, it outputs the correction control signal. The polarity control module adjusts the switching time of the corresponding output path of the polarity switching object in the first electrode group and / or the polarity switching object in the second electrode group according to the correction control signal, so that the actual switching process corresponds to the preset timing.

8. A cross-current output device based on electrode polarity reversal according to claim 1, characterized in that, It also includes a current regulation module, which is connected to the main control unit and the electrode output terminal. After determining the target electrode group, the main control unit sends an output intensity parameter to the current regulation module, and the current regulation module adjusts the output intensity of the electrode output terminal according to the output intensity parameter.

9. A cross-current output device based on electrode polarity reversal according to claim 8, characterized in that, The output intensity parameter also includes a single stimulus duration parameter, and the current adjustment module controls the single stimulus duration based on the single stimulus duration parameter.

10. A cross-current output device based on electrode polarity reversal according to claim 3, characterized in that, The polarity control module includes a switching unit. The main control unit outputs a control signal to the switching unit. The switching unit switches the conduction relationship of the output path corresponding to the polarity switching object according to the control signal, so that the output path corresponding to the polarity switching object switches between a positive connection state and a negative connection state.

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