Control device for a low-frequency electrical stimulation device and related components
By using an output module to control multiple channels in a low-frequency electrical stimulation device and sequentially allocating non-overlapping output intervals, the problem of mutual interference when multiple pairs of electrode plates are working is solved, and the device is miniaturized and portable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-23
- Publication Date
- 2026-03-31
Smart Images
Figure CN115599017B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical devices, and in particular to a control device and related components for a low-frequency electrical stimulation device. Background Technology
[0002] Low-frequency electrical stimulation (HFES) devices refer to devices that use current with a frequency below 1000 Hz to stimulate muscles or nerves. Typically, HFES devices include a control module that outputs control signals, an output module that generates stimulation signals based on the control signals, and electrode pads that output the stimulation signals to the muscles or nerves. Each pair of electrode pads forms a channel. In practical applications, multiple pairs of electrode pads, i.e., multiple channels, sometimes need to operate simultaneously, especially in devices similar to electroacupuncture that need to stimulate multiple acupoints at the same time. Current technology usually uses multiple output modules and multiple pairs of electrode pads corresponding to each output module, but this approach suffers from high cost and large size, hindering the miniaturization and portability of HFES devices. Summary of the Invention
[0003] The purpose of this invention is to provide a control device and related components for a low-frequency electrical stimulation device, which can control multiple channels to output stimulation signals through one output module, thereby reducing the size of the low-frequency electrical stimulation device.
[0004] To solve the above-mentioned technical problems, the present invention provides a control device for a low-frequency electrical stimulation device, comprising:
[0005] Memory, used to store computer programs;
[0006] A processor, when executing the computer program, performs the following steps:
[0007] The status of each channel in the low-frequency electrical stimulation device is detected sequentially;
[0008] For any channel, when the channel is in the activated state, the output time of the stimulation signal output by the channel being high, as measured by the detection module, is obtained.
[0009] The channel is assigned an output interval within a preset output interval, wherein the output intervals corresponding to each channel within the preset output interval do not overlap, and the length of the output interval of the channel is not less than the length of the output time of the channel.
[0010] After all the output intervals of each channel of the low-frequency electrical stimulation device are allocated, a control signal is output so that the output module receives the control signal and controls each channel corresponding to each of the preset output intervals to output the stimulation signal in sequence.
[0011] Preferably, before allocating an output range within a preset output range for the channel, the method further includes:
[0012] Determine whether the length of the unassigned interval within the preset output interval is greater than the length of the output time;
[0013] If so, proceed to the step of allocating an output range for the channel within a preset output range;
[0014] If not, when the channel meets the preset allocation conditions, an output interval is allocated to the channel in the next preset output interval of the current preset output interval.
[0015] Preferably, allocating an output range within a preset output range for the channel includes:
[0016] The starting point of the unassigned interval in the preset output interval is taken as the starting point of the output interval, and the length of the output interval is the length of the output time.
[0017] Preferably, when the channel meets the preset allocation conditions, an output interval is allocated to the channel in the next preset output interval of the current preset output interval, including:
[0018] Determine the common factor between the period of the channel and the periods of each channel in the allocated output interval;
[0019] When there is a common factor greater than 1, the channel is assigned an output interval in the next preset output interval of the current preset output interval.
[0020] Preferably, the preset output range is the minimum period of the low-frequency electrical stimulation device, wherein the sum of the high-level output times of the stimulation signals output by each channel within each preset output range is not greater than the minimum period of the low-frequency electrical stimulation device.
[0021] Preferably, the processor is further configured to:
[0022] When the output time of a channel with an already allocated output range increases or a new channel is opened in the low-frequency electrical stimulation device, the step of sequentially detecting the state of each channel in the low-frequency electrical stimulation device is entered in order to reallocate the output range of each channel of the low-frequency electrical stimulation device.
[0023] To solve the above-mentioned technical problems, the present invention also provides a low-frequency electrical stimulation device, including a control device for the low-frequency electrical stimulation device, and further comprising:
[0024] N pairs of electrode plates, where N is a positive integer;
[0025] The output module is used to control each channel corresponding to each output interval in the preset output interval to output stimulation signals sequentially after receiving the control signal output by the control device of the low-frequency electrical stimulation device.
[0026] The detection module is used to detect the output time when the stimulation signal output from each channel is at a high level.
[0027] Preferably, the output module includes a current regulation circuit, a level regulation circuit, a transformer output circuit, and a switching switch;
[0028] The input terminals of the current adjustment circuit and the level adjustment circuit are both connected to the output terminal of the control device of the low-frequency electrical stimulation device. The output terminals of the current adjustment circuit and the level adjustment circuit are both connected to the input terminal of the transformer output circuit. The output terminal of the transformer output circuit is connected to the power supply terminal of the switching switch. The output terminal of the switching switch is connected to each of the channels respectively. The control terminal of the switching switch is connected to the output terminal of the control device of the low-frequency electrical stimulation device.
[0029] The current regulation module is used to adjust the output current of the transformer output circuit based on the control signal output by the control device of the low-frequency electrical stimulation equipment.
[0030] The level adjustment module is used to adjust the output level of the transformer output circuit based on the control signal.
[0031] Preferably, the detection module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a comparator, a first capacitor, a second capacitor, and a bidirectional breakdown diode;
[0032] The first end of the first resistor is connected to the first input terminal of the detection module and the output terminal of the output module. The second end of the first resistor is connected to the negative input terminal of the comparator, and the common terminal of the connection is connected to the first end of the third resistor. The second end of the third resistor is connected to the output terminal of the comparator. The first end of the second resistor is connected to the second input terminal of the detection module and the output terminal of the output module. The second end of the second resistor is connected to the positive input terminal of the comparator, and the common terminal of the connection is connected to the first end of the fourth resistor. The second end of the fourth resistor is grounded. The first end of the first capacitor is connected to the second end of the fourth resistor. The second end of the first capacitor is connected to the power supply and the power supply terminal of the comparator. The output terminal of the comparator is connected to the first end of the bidirectional breakdown diode and the first end of the second capacitor. The connection between the second end of the bidirectional breakdown diode and the second capacitor, and the common terminal of the connection, is grounded, which is the output terminal of the detection module.
[0033] To solve the above-mentioned technical problems, the present invention also provides a control system for a low-frequency electrical stimulation device, comprising:
[0034] The status detection unit is used to sequentially detect the status of each channel in the low-frequency electrical stimulation device;
[0035] The output time acquisition unit is used to acquire the output time when the stimulation signal output by the channel is high, as measured by the detection module, when the channel is in the start state.
[0036] An output interval allocation unit is used to allocate an output interval for the channel within a preset output interval, wherein the output intervals corresponding to each channel within the preset output interval do not overlap, and the length of the output interval of the channel is not less than the length of the output time of the channel.
[0037] The control signal output unit is used to output a control signal after the output interval allocation of each channel of the low-frequency electrical stimulation device is completed, so that the output module controls each channel corresponding to each output interval in the preset output interval to output the stimulation signal in sequence after receiving the control signal.
[0038] In summary, this invention provides a control device and related components for a low-frequency electrical stimulation device. First, it sequentially detects the duration of the high-level output stimulation signal from each channel during startup. Then, it allocates the output times of each channel within a preset output interval without overlap, avoiding mutual interference caused by simultaneous high-level outputs from multiple channels. Therefore, a single output module can control the output stimulation signals from multiple channels, reducing the size of the low-frequency electrical stimulation device. After configuration, each channel of the low-frequency electrical stimulation device can sequentially output high-level stimulation signals according to the order of the preset output intervals, achieving automatic control of the low-frequency electrical stimulation device. Attached Figure Description
[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the prior art and embodiments 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.
[0040] Figure 1 A schematic diagram of the structure of a control device for a low-frequency electrical stimulation device provided by the present invention;
[0041] Figure 2 This is a flowchart of the control method for the low-frequency electrical stimulation device in this invention;
[0042] Figure 3A partial circuit diagram of an output module provided by the present invention;
[0043] Figure 4 A circuit diagram of a detection module provided by the present invention;
[0044] Figure 5 This is a schematic diagram of the control system of a low-frequency electrical stimulation device provided by the present invention. Detailed Implementation
[0045] The core of this invention is to provide a control device and related components for a low-frequency electrical stimulation device, which can control multiple channels to output stimulation signals through one output module, thereby reducing the size of the low-frequency electrical stimulation device.
[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, 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.
[0047] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a control device for a low-frequency electrical stimulation device provided by the present invention. The low-frequency electrical stimulation device includes:
[0048] Memory 11 is used to store computer programs;
[0049] Processor 12, when executing a computer program, performs the following steps:
[0050] The status of each channel in the low-frequency electrical stimulation device was checked sequentially.
[0051] For any channel in the activated state, the output time of the stimulation signal output by the channel, as measured by the detection module, is the high-level output time.
[0052] The channel is assigned an output interval within a preset output interval, wherein the output intervals of each channel within the preset output interval do not overlap, and the length of the output interval of the channel is not less than the length of the output time of the channel.
[0053] After all output intervals are allocated in each channel of the low-frequency electrical stimulation device, a control signal is output so that the output module can receive the control signal and control each channel corresponding to each output interval in the preset output interval to output stimulation signals in sequence.
[0054] In the prior art, in order to enable low-frequency electrical stimulation devices to support multiple pairs of electrode pads, i.e. multiple channels, multiple output modules and multiple pairs of electrode pads connected one-to-one with each output module are usually set up. However, this will impose certain requirements on cost and size, which is not conducive to the miniaturization and portability of low-frequency electrical stimulation devices.
[0055] To solve the above technical problems, this application uses an output module to control multiple pairs of electrode plates, i.e., multiple channels. The main problem in achieving the above objective is to avoid mutual interference when multiple pairs of electrode plates are working. That is, the high-level output times of each channel need to be staggered. Therefore, in this application, the high-level output time of each channel needs to be allocated first, and the high-level output times of each channel do not overlap. After the allocation is completed, the low-frequency electrical stimulation device can control each channel to work according to the above allocation results.
[0056] Specifically, low-frequency electrical stimulation devices are usually connected to an external touch screen. Users can use the touch screen to set which channels need to be activated during low-frequency electrical stimulation and the high-level output time of the stimulation signal of each channel. Therefore, in this application, the processor 12 first detects the status of each channel in the low-frequency electrical stimulation device. The status of each channel is whether each channel is activated.
[0057] Since the output time of the stimulation signal set to high level by the user via the touch screen may be affected by circuit delay or other factors, which may change the actual output time of the stimulation signal set to high level, in this application, for any activated channel, the processor 12 needs to obtain the output time of the stimulation signal set to high level by the detection module, so as to allocate output time to each activated channel in the future.
[0058] After obtaining the output time of any channel in the "start" state, an output interval can be allocated to that channel within a preset output interval; alternatively, after obtaining the output times of all channels in the "start" state, output intervals can be allocated sequentially for each channel. This application does not impose any particular limitation on this approach. To avoid mutual interference between channels, when allocating output intervals for each channel within the preset output interval, it is necessary to ensure that the corresponding output intervals of each channel within the preset output interval do not overlap and that the length of the output interval corresponding to that channel is not less than the length of the channel's output time.
[0059] The above process involves allocating output intervals for each channel. After the output interval allocation is completed, the low-frequency electrical stimulation device can output control signals so that each channel of the low-frequency electrical stimulation device outputs stimulation signals sequentially according to the order of the output intervals within the preset output intervals. Furthermore, the control signals here may include the sequence number of the target channel to be activated and a stop signal to control the target channel to stop outputting stimulation signals; this application does not impose any particular limitations on this.
[0060] Furthermore, the preset output range in this application can be set according to preset rules when the low-frequency electrical stimulation device is started for initialization, and this application does not impose any special limitations on this.
[0061] In addition, the output module of this application may include a switching switch. When information containing the sequence number of the target channel to be turned on is received, the switching switch controls the pair of electrode pads corresponding to the target channel to be turned on so that the pair of electrode pads can output a stimulation signal.
[0062] In summary, this invention discloses a control device for a low-frequency electrical stimulation device. The processor 12 first sequentially detects the duration of the high-level output stimulation signal from each channel during startup. Then, it allocates the non-overlapping output times of each channel within a preset output interval, avoiding mutual interference caused by simultaneous high-level outputs from multiple channels. Therefore, a single output module can control the output stimulation signals from multiple channels, reducing the size of the low-frequency electrical stimulation device. After configuration, each channel of the low-frequency electrical stimulation device can sequentially output high-level stimulation signals according to the order of the preset output intervals, achieving automatic control of the low-frequency electrical stimulation device.
[0063] Based on the above embodiments:
[0064] As a preferred embodiment, before allocating an output range to the channel within a preset output range, the method further includes:
[0065] Determine whether the length of the unassigned interval within the preset output interval is greater than the length of the output time;
[0066] If so, proceed to the step of allocating an output range for the channel within the preset output range;
[0067] If not, when the channel meets the preset allocation conditions, the channel will be allocated an output interval in the next preset output interval of the current preset output interval.
[0068] In this embodiment, considering that when allocating output intervals to each channel, the length of the unallocated intervals in the preset output interval will gradually decrease, it is possible that the length of the unallocated intervals in the preset output interval is insufficient for the channel to which the output interval is currently to be allocated, thereby causing the low-frequency electrical stimulation device to fail to start the channel normally.
[0069] Therefore, in this application, before allocating an output interval to a channel within a preset interval, it is first determined whether the length of the unallocated interval within the preset output interval is greater than the length of the output time of the channel to be allocated an output interval. If the length of the unallocated interval within the preset output interval is greater than the length of the channel's output time, an output interval is allocated to the channel within the preset output interval. If the length of the unallocated interval within the preset output interval is not greater than the length of the channel's output time and the channel's output time is within the next preset output interval of the current preset output interval, an output interval is allocated to the channel. Furthermore, the preset allocation condition here can be that the channel's output time is less than the length of the preset output interval; this application does not impose any special limitations on this.
[0070] In summary, in this embodiment, before allocating an output interval to a channel within a preset output interval, it is first determined whether the length of the unallocated interval within the preset output interval is greater than the length of the output time. This ensures that each channel with an output interval to be allocated can be properly allocated to the output interval, guaranteeing the normal allocation of the output interval. This provides a guarantee for the subsequent low-frequency electrical stimulation device to sequentially control the output stimulation signal of each channel based on the allocation result.
[0071] As a preferred embodiment, allocating an output range within a preset output range for the channel includes:
[0072] The starting point of the unassigned interval in the preset output interval is taken as the starting point of the output interval, and the length of the output interval is the length of the output time.
[0073] In this embodiment, when allocating output intervals for channels within a preset output interval, in order to ensure that the output intervals corresponding to each channel do not overlap, the starting point of the unallocated interval in the preset output interval is taken as the starting point of the output interval. At the same time, in order to ensure that each channel has enough time to output high levels sequentially while allocating as many output intervals as possible within the preset output time, the length of the output interval is set to the length of the output time in this embodiment.
[0074] In summary, this embodiment ensures that the output intervals corresponding to each channel do not overlap and that the number of output intervals allocated within the preset output interval is relatively large, thus ensuring the stability of the low-frequency electrical stimulation device and improving its working efficiency.
[0075] As a preferred embodiment, when the channel meets the preset allocation conditions, an output interval is allocated to the channel within the next preset output interval of the current preset output interval, including:
[0076] Determine the common factor between the period of the channel and the periods of each channel in the allocated output interval;
[0077] When there is a common factor greater than 1, the channel is assigned an output interval in the next preset output interval of the current preset output interval.
[0078] In this embodiment, when a channel needs to be allocated an output interval in the next preset output interval of the current preset output interval, it is first determined whether the channel meets the preset allocation conditions. Specifically, the common factor between the period of the channel and the periods of each channel in the allocated output interval is first determined. When there is a common factor greater than 1, the channel is allocated an output interval in the next preset output interval of the current preset output interval.
[0079] Furthermore, if there are subsequent channels that meet the preset allocation conditions, the channel can be allocated to the current preset output interval. If the current preset output interval has been fully allocated, the channel can be allocated to the next preset output interval, and so on, up to the least common factor (excluding 1) preset output interval.
[0080] For example, within the first preset output interval, corresponding output intervals have been assigned to the first channel and the second channel, respectively. The output interval corresponding to the first channel is T1, and the output interval corresponding to the second channel is T2. The period of the first channel is 2s, and the period of the second channel is 4s. The period of the newly started output interval to be assigned is 2s, and the time for the output stimulus signal of the newly started output interval to be assigned to be high is Tn. If the length of the unassigned interval within the first preset output interval is less than Tn, then the common factors between the period of the first channel, the period of the second channel, and the period of the newly started output interval to be assigned are first determined to be 1 and 2. If there is a common factor greater than 1, then the newly started output interval to be assigned can be assigned to the next preset output interval of the current preset output interval. It can be assigned to the second preset output interval at most; otherwise, it will conflict with the first preset output interval.
[0081] In a preferred embodiment, the preset output range is the minimum cycle of the low-frequency electrical stimulation device, wherein the sum of the high-level output times of the stimulation signals output by each channel within each preset output range is not greater than the minimum cycle of the low-frequency electrical stimulation device.
[0082] The duration of the high-level stimulation signal output from each channel can be preset. In this embodiment, the preset output range is set as the minimum cycle of the low-frequency electrical stimulation device, and the sum of the high-level output times of the stimulation signals from each channel within the preset output range does not exceed the minimum cycle of the low-frequency electrical stimulation device. This further ensures that the output range can be reasonably allocated to each channel, guaranteeing that the low-frequency electrical stimulation device can control multiple channel output stimulation circuits through a single output module. The minimum cycle of the low-frequency electrical stimulation device is a value set by the user for different types of low-frequency devices, different treatment sites, and different symptoms. The duration of the high-level stimulation signal output from each channel is also adjustable.
[0083] In a preferred embodiment, the processor 12 is also used for:
[0084] When a new channel is opened in the low-frequency electrical stimulation device or the output time of a channel with an already assigned output range increases, the device proceeds to the step of sequentially detecting the status of each channel in the low-frequency electrical stimulation device in order to reallocate the output range for each channel of the low-frequency electrical stimulation device.
[0085] In this embodiment, considering that the duration of the high-level stimulation signal output by each channel is adjustable, the user may increase the output time of the channel in the allocated output interval or open a new channel during the use of the low-frequency electrical stimulation device. Both of these situations may cause the output times of the channels to overlap, resulting in mutual interference between the channels and affecting the normal operation of the low-frequency electrical stimulation device. Therefore, in this embodiment, the processor 12 is also used to re-detect the state and output time of each channel in the low-frequency electrical stimulation device when it detects that a new channel has been opened or the output time of a channel in the allocated output interval has increased, so as to reallocate the output interval.
[0086] In this embodiment, it is further ensured that the low-frequency electrical stimulation device can still operate normally when a new channel is opened or a channel with an already assigned output range is used.
[0087] The present invention also provides a low-frequency electrical stimulation device, including the control device of the above-mentioned low-frequency electrical stimulation device, and further comprising:
[0088] N pairs of electrode plates, where N is a positive integer;
[0089] The output module is used to control each channel corresponding to each output interval in the preset output interval to output stimulation signals sequentially after receiving the control signal output by the control device of the low-frequency electrical stimulation device.
[0090] The detection module is used to detect the output time when the stimulation signal output from each channel is at a high level.
[0091] For a detailed description of the low-frequency electrical stimulation device provided by this invention, please refer to the embodiment of the control device of the low-frequency electrical stimulation device described above, which will not be repeated here.
[0092] Based on the above embodiments:
[0093] In a preferred embodiment, the output module includes a current regulation circuit 21, a level regulation circuit 22, a transformer output circuit 23, and a switching switch;
[0094] The input terminals of the current adjustment circuit 21 and the level adjustment circuit 22 are both connected to the output terminal of the control device of the low-frequency electrical stimulation equipment. The output terminals of the current adjustment circuit 21 and the level adjustment circuit 22 are both connected to the input terminal of the transformer output circuit 23. The output terminal of the transformer output circuit 23 is connected to the power supply terminal of the switching switch. The output terminal of the switching switch is connected to each channel respectively. The control terminal of the switching switch is connected to the output terminal of the control device of the low-frequency electrical stimulation equipment.
[0095] The current regulation module is used to adjust the output current of the transformer output circuit 23 based on the control signal output by the control device of the low-frequency electrical stimulation equipment.
[0096] The level adjustment module is used to adjust the output level of the transformer output circuit 23 based on the control signal.
[0097] Please refer to Figure 3 , Figure 3 The present invention provides a partial circuit diagram of an output module. The output terminal of the control device of the low-frequency electrical stimulation device is connected to the input terminal of the current adjustment circuit 21 and the input terminal of the level adjustment circuit 22. The current adjustment circuit 21 can adjust the magnitude of the current output by the voltage transformer output circuit based on the control signal output by the control device of the low-frequency electrical stimulation device. The level adjustment circuit 22 can adjust the output of the transformer output module to a high level or a low level based on the control signal output by the control device of the low-frequency electrical stimulation device. The output terminal of the transformer output module is connected to the power supply terminal of the switching switch. The output terminal of the switching switch is connected to each channel, that is, to each pair of electrode plates. The switching switch can control the connection of the pair of electrode plates corresponding to the channel to be opened based on the control signal output by the control device of the low-frequency electrical stimulation device.
[0098] In a preferred embodiment, the detection module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a comparator, a first capacitor, a second capacitor, and a bidirectional breakdown diode;
[0099] The first end of the first resistor is connected to the first input terminal of the detection module and the output terminal of the output module. The second end of the first resistor is connected to the negative input terminal of the comparator, and the common terminal of the connection is connected to the first end of the third resistor. The second end of the third resistor is connected to the output terminal of the comparator. The first end of the second resistor is connected to the second input terminal of the detection module and the output terminal of the output module. The second end of the second resistor is connected to the positive input terminal of the comparator, and the common terminal of the connection is connected to the first end of the fourth resistor. The second end of the fourth resistor is grounded. The first end of the first capacitor is connected to the second end of the fourth resistor. The second end of the first capacitor is connected to the power supply and the power supply terminal of the comparator respectively. The output terminal of the comparator is connected to the first end of the bidirectional breakdown diode and the first end of the second capacitor respectively. The connection between the second end of the bidirectional breakdown diode and the second capacitor, and the common terminal of the connection, is grounded, which is the output terminal of the detection module.
[0100] Please refer to Figure 4 , Figure 4 The circuit diagram of a detection module provided by the present invention is shown in this embodiment. Both input terminals of the detection module are connected to the output terminal of the output module. When the output module outputs current, the detection module converts the current from an analog quantity to a digital quantity and outputs it to the control device of the low-frequency electrical stimulation device so that the control device of the low-frequency electrical stimulation device can obtain the output time of the stimulation signal of the channel output as high level based on the digital quantity.
[0101] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the control system of a low-frequency electrical stimulation device provided by the present invention. The control system of the low-frequency electrical stimulation device includes:
[0102] The status detection unit 31 is used to sequentially detect the status of each channel in the low-frequency electrical stimulation device;
[0103] The output time acquisition unit 32 is used to acquire the output time when the stimulation signal output by the channel is high, as measured by the detection module, when the channel is in the start state.
[0104] The output interval allocation unit 33 is used to allocate an output interval for a channel within a preset output interval, wherein the output intervals corresponding to each channel within the preset output interval do not overlap, and the length of the output interval of a channel is not less than the length of the output time of the channel.
[0105] The control signal output unit 34 is used to output a control signal after the output interval allocation is completed in each channel of the low-frequency electrical stimulation device, so that the output module can control each channel corresponding to each output interval in the preset output interval to output stimulation signals in sequence after receiving the control signal.
[0106] For a detailed description of the control system for a low-frequency electrical stimulation device provided by this invention, please refer to the embodiments of the control device for the low-frequency electrical stimulation device described above, which will not be repeated here.
[0107] Based on the above embodiments:
[0108] As a preferred embodiment, it also includes:
[0109] The length determination unit is used to determine whether the length of the unallocated interval within the preset output interval is greater than the length of the output time before allocating an output interval to the channel within the preset output interval; if yes, the output interval allocation unit 33 is triggered; if no, the output interval reallocation unit is triggered.
[0110] The output interval reallocation unit is used to allocate an output interval for a channel within the next preset output interval when the channel meets the preset allocation conditions.
[0111] In a preferred embodiment, the output interval allocation unit 33 is specifically used to take the starting point of the unallocated interval in the preset output interval as the starting point of the output interval, and the length of the output interval is the length of the output time.
[0112] As a preferred embodiment, the output interval redistribution unit includes:
[0113] A common factor determination unit is used to determine the common factor between the period of the channel and the periods of each channel in the allocated output interval;
[0114] The redistribution subunit is used to allocate an output interval for the channel in the next preset output interval of the current preset output interval when there is a common factor greater than 1.
[0115] In a preferred embodiment, the preset output range is the minimum cycle of the low-frequency electrical stimulation device, wherein the sum of the high-level output times of the stimulation signals output by each channel within each preset output range is not greater than the minimum cycle of the low-frequency electrical stimulation device.
[0116] As a preferred embodiment, it also includes:
[0117] The update unit is used to trigger the state detection unit 31 when the low-frequency electrical stimulation device opens a new channel or the output time of a channel with an already assigned output range increases, so as to reallocate the output range of each channel of the low-frequency electrical stimulation device.
[0118] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0119] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0120] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A control device for a low-frequency electrical stimulation device, characterized in that include: Memory, used to store computer programs; A processor, when executing the computer program, performs the following steps: The status of each channel in the low-frequency electrical stimulation device is detected sequentially; For any of the channels, when the channel is in the activated state, the output time of the stimulation signal output by the channel being high, as measured by the detection module, is obtained. The channel is assigned an output interval within a preset output interval, wherein the output intervals corresponding to each channel within the preset output interval do not overlap, and the length of the output interval of the channel is not less than the length of the output time of the channel. After each channel of the low-frequency electrical stimulation device completes the output interval allocation, a control signal is output so that the output module receives the control signal and controls each channel corresponding to each output interval in the preset output interval to output the stimulation signal in sequence. Before allocating an output range within a preset output range for the channel, the method further includes: Determine whether the length of the unassigned interval within the preset output interval is greater than the length of the output time; If so, proceed to the step of allocating an output range for the channel within a preset output range; If not, when the channel meets the preset allocation conditions, an output interval is allocated to the channel in the next preset output interval of the current preset output interval; When the channel meets the preset allocation conditions, an output interval is allocated to the channel in the next preset output interval of the current preset output interval, including: Determine the common factor between the period of the channel and the periods of each channel in the allocated output interval; When there is a common factor greater than 1, the channel is assigned an output interval in the next preset output interval of the current preset output interval.
2. The control device of a low-frequency electrical stimulation apparatus according to claim 1, characterized by Assigning an output range to the channel within a preset output range includes: The starting point of the unassigned interval in the preset output interval is taken as the starting point of the output interval, and the length of the output interval is the length of the output time.
3. The control device of the low-frequency electrical stimulation apparatus according to claim 1, wherein The preset output range is the minimum period of the low-frequency electrical stimulation device, wherein the sum of the high-level output times of the stimulation signals output by each channel within each preset output range is not greater than the minimum period of the low-frequency electrical stimulation device.
4. The control device of a low-frequency electrical stimulation apparatus according to any one of claims 1 to 3, characterized in that, The processor is also used for: When the output time of a channel with an already allocated output range increases or a new channel is opened in the low-frequency electrical stimulation device, the step of sequentially detecting the state of each channel in the low-frequency electrical stimulation device is entered in order to reallocate the output range of each channel of the low-frequency electrical stimulation device.
5. A low frequency electrical stimulation device, characterized by The control device for the low-frequency electrical stimulation device as described in any one of claims 1 to 4 further includes: N pairs of electrode plates, where N is a positive integer; The output module is used to control each channel corresponding to each output interval in the preset output interval to output stimulation signals sequentially after receiving the control signal output by the control device of the low-frequency electrical stimulation device. The detection module is used to detect the output time when the stimulation signal output from each channel is at a high level.
6. The low-frequency electrical stimulation device of claim 5, wherein, The output module includes a current regulation circuit, a level regulation circuit, a transformer output circuit, and a switching switch; The input end of the current adjusting circuit and the input end of the level adjusting circuit are connected with the output end of the control device of the low-frequency electric stimulation device, the output end of the current adjusting circuit and the output end of the level adjusting circuit are connected with the input end of the transformer output circuit, the output end of the transformer output circuit is connected with the power supply end of the switch, the output end of the switch is connected with each of the channels, and the control end of the switch is connected with the output end of the control device of the low-frequency electric stimulation device; The current adjusting circuit is used for adjusting the size of the output current of the transformer output circuit based on the control signal output by the control device of the low-frequency electric stimulation device; The level adjusting circuit is used for adjusting the output level of the transformer output circuit based on the control signal.
7. The low-frequency electrical stimulation device of claim 6, wherein, The detection module comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a comparator, a first capacitor, a second capacitor and a bidirectional breakdown diode; The first end of the first resistor is connected with the output end of the output module as the first input end of the detection module, the second end of the first resistor is connected with the negative input end of the comparator, and the common end connected with the second end of the first resistor is connected with the first end of the third resistor, the second end of the third resistor is connected with the output end of the comparator, the first end of the second resistor is connected with the output end of the output module as the second input end of the detection module, the second end of the second resistor is connected with the positive input end of the comparator, and the common end connected with the second end of the second resistor is connected with the first end of the fourth resistor, the second end of the fourth resistor is grounded, the first end of the first capacitor is connected with the second end of the fourth resistor, the second end of the first capacitor is connected with a power supply and the power supply end of the comparator, the output end of the comparator is connected with the first end of the bidirectional breakdown diode and the first end of the second capacitor, and the second end of the bidirectional breakdown diode and the first end of the second capacitor are connected, and the common end connected with the second end of the bidirectional breakdown diode and the first end of the second capacitor is the output end of the detection module.
8. A control system for a low frequency electrical stimulation device, characterized in that Comprise: The state detection unit is used for sequentially detecting the states of each channel in the low-frequency electric stimulation device; The output time acquisition unit is used for acquiring the output time of the high-level stimulation signal output by the channel when the state of the channel is the starting state. The output interval allocation unit is used for allocating an output interval for the channel in a preset output interval, wherein the corresponding output intervals of each channel in the preset output interval are mutually exclusive, and the length of the output interval of the channel is not less than the length of the output time of the channel. The control signal output unit is used for outputting a control signal after each channel of the low-frequency electric stimulation device completes the output interval allocation, so that the output module controls each channel corresponding to each output interval in the preset output interval to sequentially output the stimulation signal after receiving the control signal. Further comprise: The length judging unit is configured to judge whether the length of the interval not allocated in the preset output interval is greater than the length of the output time before the output interval allocating unit allocates the output interval for the channel in the preset output interval; if yes, the output interval allocating unit is triggered; if not, the output interval re-allocating unit is triggered; The output interval re-allocating unit is configured to allocate the output interval for the channel in the next preset output interval of the current preset output interval when the channel meets the preset allocation condition. The output interval re-allocating unit comprises: A common factor determining unit is configured to determine the common factor between the period of the channel and the period of each channel of the allocated output interval; A re-allocating sub-unit is configured to allocate the output interval for the channel in the next preset output interval of the current preset output interval when the common factor is greater than 1.
Citation Information
Patent Citations
Method and system for providing multi-channel and / or variable neurostimulation
CN111921086A