CN109758670B - Electrical stimulation system and method for detecting electrode falling - Google Patents
Electrical stimulation system and method for detecting electrode falling Download PDFInfo
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Abstract
The invention provides an electrical stimulation system and a method for detecting electrode falling thereof, wherein in the electrical stimulation system, a pulse generation module is used for: in a first time period, controlling the first electrode and the second electrode to output a first electrical stimulation pulse and a second electrical stimulation pulse respectively, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered way in time; the state detection module is used for: acquiring a first pulse number value of the shedding pulse and a second pulse number value of the first electrical stimulation pulse, wherein when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is greater than or equal to a preset current value, the shedding pulse is at a low level, when the level is not zero and the current value output by the first electrode is less than the preset current value, the shedding pulse is at a high level, and when the level is zero, the shedding pulse is at a high level; and judging whether the first electrode falls off or not according to the first pulse quantity value and the second pulse quantity value. The system shields the coupling effect of the second electrode on the first electrode, so that whether the first electrode falls off or not can be accurately judged.
Description
Technical Field
The invention relates to the technical field of electrophysiological treatment, in particular to an electrical stimulation system and a method for detecting electrode falling.
Background
In practice, electrical stimulation systems are commonly used to treat analgesia, muscle exercise, incontinence, postpartum involution of the uterus, lactation stimulation, and the like. The electrical stimulation system is provided with a plurality of electrodes, the electrodes are respectively stuck to different parts of a human body during treatment, and weak current is provided for the human body through the electrodes, so that the purpose of treatment is achieved. In practical use, the electrode may fall off from the human body, which causes an open circuit of the electrical stimulation output, and it can be understood that the electrical stimulation system needs to be able to detect whether the electrode falls off from the human body in time.
Therefore, how to detect whether the electrode falls off from the human body in the electrical stimulation system becomes a problem to be solved.
Disclosure of Invention
The invention aims to provide an electrical stimulation system and a method for detecting electrode falling.
In order to achieve one of the above objects, an embodiment of the present invention provides an electrical stimulation system including: the device comprises a device main body and at least two electrodes which can be electrically connected to the device main body, wherein each electrode is provided with at least two electrode plates which can form a loop with a human body, and the device main body can be simultaneously and electrically connected with the at least two electrodes and can output electric stimulation pulses to the human body through the electrically connected electrodes; the equipment main body comprises a pulse generation module and a state detection module; the pulse generation module is used for: in a first time period, controlling a first electrode to output a first electrical stimulation pulse and controlling a second electrode to output a second electrical stimulation pulse, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered manner in time; the state detection module is used for: acquiring a first pulse number value of a pulse contained in the shedding pulse and a second pulse number value of the pulse contained in the first electrical stimulation pulse, wherein when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is greater than or equal to a preset current value, the shedding pulse is at a low level; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than a preset current value, the falling pulse is at a high level; when the level of the first electrical stimulation pulse is zero, the shedding pulse is at a high level; and judging whether the first electrode falls off or not according to the first pulse number value and the second pulse number value.
As a further improvement of the embodiment of the present invention, the "determining whether the first electrode falls off according to the first pulse magnitude value and the second pulse magnitude value" specifically includes: upon determining that the first magnitude > the second magnitude x k, the first electrode is exfoliated, wherein k is a positive number.
As a further improvement of an embodiment of the present invention, the first electrical stimulation pulse is a bidirectional square wave or a unidirectional square wave.
As a further improvement of an embodiment of the present invention, the second electrical stimulation pulse is a bidirectional square wave or a unidirectional square wave.
As a further improvement of an embodiment of the present invention, two electrode sheets are provided on each electrode.
The embodiment of the invention also provides a method for detecting electrode falling of an electrical stimulation system, which comprises the following steps:
in a first time period, controlling a first electrode to output a first electrical stimulation pulse and controlling a second electrode to output a second electrical stimulation pulse, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered manner in time;
acquiring a first pulse number value of a pulse contained in the shedding pulse and a second pulse number value of the pulse contained in the first electrical stimulation pulse, wherein when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is greater than or equal to a preset current value, the shedding pulse is at a low level; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than a preset current value, the falling-off pulse is at a high level; when the level of the first electrical stimulation pulse is zero, the shedding pulse is at a high level; and judging whether the first electrode falls off or not according to the first pulse quantity value and the second pulse quantity value.
As a further improvement of the embodiment of the present invention, the "determining whether the first electrode falls off according to the first pulse magnitude value and the second pulse magnitude value" specifically includes: upon determining that the first magnitude > the second magnitude x k, the first electrode is exfoliated, wherein k is a positive number.
Compared with the prior art, the invention has the technical effects that: the embodiment of the invention provides an electrical stimulation system and a method for detecting electrode falling, wherein when a detection electrode falls off, a first pulse numerical value of a falling pulse and a second pulse numerical value of the first electrical stimulation pulse are obtained, wherein when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is more than or equal to a preset current value, the falling pulse is at a low level, when the level is not zero and the current value output by the first electrode is less than the preset current value, the falling pulse is at a high level, and when the level is zero, the falling pulse is at a high level; and judging whether the first electrode falls off or not according to the first pulse quantity value and the second pulse quantity value. The system shields the coupling effect of the second electrode on the first electrode, so that whether the first electrode falls off or not can be accurately judged.
Drawings
FIG. 1 is a block diagram of an electrical stimulation system of the present invention;
FIG. 2 is a structural view for describing a connection relationship between a cable and an electrode according to the present invention;
FIG. 3 is a waveform diagram of the present invention used to describe the coupling of the first electrode with the shielding second electrode;
fig. 4 is a waveform diagram for describing the coupling of the first electrode without shielding the second electrode according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another. For example, the first electrode may be referred to as the second electrode, and similarly the second electrode may also be referred to as the first electrode, without departing from the scope of the present application.
An embodiment of the present invention provides an electrical stimulation system, as shown in fig. 1, including:
the device comprises a device body 1 and at least two electrodes which can be electrically connected to the device body 1, wherein each electrode is provided with at least two electrode sheets which can form a loop with a human body, the device body 1 can be simultaneously and electrically connected with at least two electrodes and can output electric stimulation pulses to the human body through the electrically connected electrodes; the device body 1 comprises a pulse generation module 11 and a state detection module 12; here, a plurality of electrode pads are provided on each electrode, and a circuit can be formed between the plurality of electrode pads and the human body, so that the apparatus main body 1 can output one electrical stimulation pulse to the human body through the electrodes, and since the apparatus main body 1 can electrically connect a plurality of electrodes at the same time, the apparatus main body 1 can output a plurality of electrical stimulation pulses to the human body through the plurality of electrodes at the same time, respectively. Here, fig. 1 and 2 show a structural diagram of the electrical stimulation system, which includes a device main body 1, a first electrode 3 and a second electrode 4, wherein the first electrode 3 includes a first positive electrode sheet 31 and a first negative electrode sheet 32, the second electrode 4 includes a second positive electrode sheet 41 and a second negative electrode sheet 42, and the device main body 1 can output an electrical stimulation pulse to a human body through the first and second electrodes, respectively; for example, in abdominal electrical stimulation, two electrode pads are generally included, and when in use, one electrode pad is attached to the skin surface on the left side of the abdomen of a human body, and the other electrode pad is attached to the skin surface on the right side of the abdomen of the human body, so that electrical stimulation pulses can be output to the human body through the two electrode pads.
The pulse generation module 11 is configured to: in a first time period, controlling a first electrode to output a first electrical stimulation pulse and controlling a second electrode to output a second electrical stimulation pulse, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered manner in time;
the state detection module 12 is configured to: acquiring a first pulse quantity value of pulses contained in the falling pulses and a second pulse quantity value of pulses contained in the first electrical stimulation pulses, wherein the falling pulses are at a low level when the level of the first electrical stimulation pulses is not zero and the current value output by the first electrode is greater than or equal to a preset current value; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than a preset current value, the falling pulse is at a high level; when the level of the first electrical stimulation pulse is zero, the shedding pulse is at a high level; and judging whether the first electrode falls off or not according to the first pulse number value and the second pulse number value. Here, the state detection module 12 may be provided with a first detector for detecting a pulse in the shedding pulse, and the first detector may send a first interrupt to the state detection module 12 once detecting the pulse, so that the state detection module 12 can obtain a first quantitative value; in the status detection module 12, a second detector for detecting pulses in the first electrical stimulation pulse may be further provided, and the second detector may send a second interrupt to the status detection module 12 upon detecting a pulse, so that the status detection module 12 can obtain a second numerical value.
In the long work of the inventors, the following phenomena were found to also exist:
(1) In practice, due to the conductivity of the human body and the problem of adhesive contact between the electrode plate and the skin, extra shedding pulses are generated in a period of time when the level of the first electrical stimulation pulse is not zero, namely the number of pulses in the shedding pulses is increased, so that whether the electrode shedding exists or not can be judged according to the first numerical value and the second numerical value. In fig. 3 (in this application, T1 in fig. 3 and 4 is not necessarily equal, and T1', T2, \8230;, and so on) illustrates a case of using a case where in fig. 3 the first and second electrodes are not coupled, and the level of the first electrical stimulation pulse is high during a period T1-T2, the level of the first electrical stimulation pulse is zero during a period T2-T3, the level of the first electrical stimulation pulse is high during a period T3-T4, the level of the first electrical stimulation pulse is zero during a period T4-T5, and the level of the first electrical stimulation pulse is high during a period T5-T6. When the first electrode is not detached, the detachment pulse is at a low level in a time period from T1 to T2, at a high level in a time period from T2 to T3, at a low level in a time period from T3 to T4, at a high level in a time period from T4 to T5, and at a low level in a time period from T5 to T6, and thus, the number of the detachment pulse is equal to that of the pulses in the first electrical stimulation pulse. When the first electrode is peeled off, as shown in fig. 3, in the T1' -T1 "period, the T3' -T3" period, and the T5' -T5 "period, the peeling pulse is likely to appear high level, that is, the number of pulses in the peeling pulse increases. In summary, in fig. 3, when the first electrode is detached, the number of the detached pulses is equal to the number of the pulses in the first electrical stimulation pulse, and when the first electrode is detached, the number of the pulses in the detached pulses is greater than the number of the pulses in the first electrical stimulation pulse, so that whether the first electrode is detached can be determined according to the first and second numbers.
(2) In fig. 2, two electrodes are electrically connected to the sub-harnesses 51, the two sub-harnesses 51 are combined into a single bus 5, and the two sub-harnesses 51 may be coupled to the bus 5, and further, since the electrode pieces of the electrodes are required to be in contact with the human body, the inventors have found that the coupling between the two electrodes may occur through the human body. In fig. 4, the first and second electrodes are coupled, and the level of the first electrical stimulation pulse is greater than zero and the level of the second electrical stimulation pulse is equal to zero during the time period T1-T2; during the T2-T3 time period, the level of the first electrical stimulation pulse = the level of the second electrical stimulation pulse = zero; in the time period from T3 to T4, the level of the first electrical stimulation pulse is equal to zero, and the level of the second electrical stimulation pulse is greater than zero; during the T4-T5 time period, the level of the first electrical stimulation pulse = the level of the second electrical stimulation pulse = zero; in a time period from T5 to T6, the level of the first electrical stimulation pulse is greater than zero, and the level of the second electrical stimulation pulse is equal to zero; during the T6-T7 time period, the level of the first electrical stimulation pulse = the level of the second electrical stimulation pulse = zero; during the time period T7-T8, the level of the first electrical stimulation pulse is equal to zero and the level of the second electrical stimulation pulse is greater than zero. When the voltage of the first electrical stimulation pulse is zero but the voltage of the second electrical stimulation pulse is not zero, the voltage on the first electrode is not zero due to the coupling between the first electrode and the second electrode, and then current is generated on the first electrode, namely when the generation principle of the shedding pulse is that when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is greater than or equal to a preset current value, the shedding pulse is at a low level; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than the preset current value, and the drop pulse is at a high level ", the erroneous judgment shown in fig. 4 is generated, that is, when both the first electrode and the second electrode drop, the erroneous judgment that the first electrode drops is generated; when the first electrode is not peeled off but the second electrode is peeled off, the misjudgment of the peeling-off of the first electrode is generated. As shown in fig. 3, if the condition "when the level of the first electrical stimulation pulse is zero, the dropout pulse is at a high level" is added to the principle of generating the dropout pulse, such a false determination is not generated.
Preferably, the "judging whether the first electrode falls off according to the first pulse magnitude value and the second pulse magnitude value" specifically includes: upon determining that the first magnitude > the second magnitude x k, the first electrode is exfoliated, wherein k is a positive number. Here, in the case shown in fig. 3, k may be equal to 1. Here, as shown in fig. 4, the pulses of the electrical stimulation pulses output from the first and second electrodes are staggered in time.
Preferably, the first electrical stimulation pulse is a bidirectional square wave or a unidirectional square wave.
Preferably, the second electrical stimulation pulse is a bidirectional square wave or a unidirectional square wave.
Preferably, two electrode sheets are provided on each electrode.
The embodiment of the invention also provides a method for detecting electrode falling of an electrical stimulation system, which comprises the following steps:
step 1: in a first time period, controlling a first electrode to output a first electrical stimulation pulse and controlling a second electrode to output a second electrical stimulation pulse, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered manner in time;
step 2: acquiring a first pulse quantity value of pulses contained in the falling pulses and a second pulse quantity value of pulses contained in the first electrical stimulation pulses, wherein the falling pulses are at a low level when the level of the first electrical stimulation pulses is not zero and the current value output by the first electrode is greater than or equal to a preset current value; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than a preset current value, the falling pulse is at a high level; when the level of the first electrical stimulation pulse is zero, the shedding pulse is at a high level; and judging whether the first electrode falls off or not according to the first pulse quantity value and the second pulse quantity value.
Preferably, the "determining whether the first electrode falls off according to the first pulse magnitude value and the second pulse magnitude value" specifically includes: upon determining that the first magnitude > the second magnitude x k, where k is a positive number, then the first electrode is peeled off.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. An electrical stimulation system, comprising:
the device comprises a device main body and at least two electrodes which can be electrically connected to the device main body, wherein each electrode is provided with at least two electrode plates which can form a loop with a human body, and the device main body can be simultaneously and electrically connected with the at least two electrodes and can output electric stimulation pulses to the human body through the electrically connected electrodes; the device main body comprises a pulse generation module and a state detection module;
the pulse generation module is used for: in a first time period, controlling a first electrode to output a first electrical stimulation pulse and controlling a second electrode to output a second electrical stimulation pulse, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered manner in time;
the state detection module is used for: acquiring a first pulse number value of a pulse contained in the shedding pulse and a second pulse number value of the pulse contained in the first electrical stimulation pulse, wherein when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is greater than or equal to a preset current value, the shedding pulse is at a low level; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than a preset current value, the falling-off pulse is at a high level; when the level of the first electrical stimulation pulse is zero, the shedding pulse is at a high level; judging whether the first electrode falls off or not according to the first pulse number value and the second pulse number value;
wherein, the "judging whether the first electrode falls off according to the first pulse number value and the second pulse number value" specifically includes:
upon determining that the first magnitude > the second magnitude x k, where k is a positive number, then the first electrode is peeled off.
2. The electrical stimulation system of claim 1, wherein:
the first electrical stimulation pulse is a bidirectional square wave or a unidirectional square wave.
3. The electrical stimulation system of claim 1, wherein:
the second electrical stimulation pulse is a bidirectional square wave or a unidirectional square wave.
4. The electrical stimulation system of claim 1, wherein:
each electrode is provided with two electrode plates.
5. A method for detecting electrode detachment in an electrical stimulation system, comprising the steps of:
in a first time period, controlling a first electrode to output a first electrical stimulation pulse and controlling a second electrode to output a second electrical stimulation pulse, wherein the pulses of the first electrical stimulation pulse and the second electrical stimulation pulse appear in a staggered manner in time;
acquiring a first pulse number value of a pulse contained in the shedding pulse and a second pulse number value of the pulse contained in the first electrical stimulation pulse, wherein when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is greater than or equal to a preset current value, the shedding pulse is at a low level; when the level of the first electrical stimulation pulse is not zero and the current value output by the first electrode is smaller than a preset current value, the falling-off pulse is at a high level; when the level of the first electrical stimulation pulse is zero, the shedding pulse is at a high level; judging whether the first electrode falls off or not according to the first pulse quantity value and the second pulse quantity value;
wherein, the "judging whether the first electrode falls off according to the first pulse number value and the second pulse number value" specifically includes:
upon determining that the first magnitude > the second magnitude x k, where k is a positive number, then the first electrode is peeled off.
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| CN116492590B (en) * | 2023-06-27 | 2023-09-12 | 大悦创新（苏州）医疗科技股份有限公司 | Electrode slice falling detection method and electric stimulation equipment |
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