CN212491147U - Myoelectric biofeedback instrument - Google Patents
Myoelectric biofeedback instrument Download PDFInfo
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- CN212491147U CN212491147U CN202020522053.0U CN202020522053U CN212491147U CN 212491147 U CN212491147 U CN 212491147U CN 202020522053 U CN202020522053 U CN 202020522053U CN 212491147 U CN212491147 U CN 212491147U
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Abstract
The utility model discloses a myoelectricity biofeedback instrument, which comprises a main controller and at least one stimulation voltage generation module; the stimulation voltage generation module comprises a first controller, a human body impedance detection circuit and a stimulation voltage generation circuit; the main controller is used for sending a stimulation generation instruction to the first controller; the first controller is used for triggering the human body impedance detection circuit to collect a human body impedance value and sending the human body impedance value to the first controller; the first controller is used for calculating to obtain a stimulation output voltage value; the stimulation voltage generating circuit is used for generating and outputting a stimulation output voltage value. The utility model can detect the impedance of the human body in real time, and output stimulation energy according to the stimulation energy requirement of the patient when the stimulation current is constant, thereby better ensuring the stimulation safety of the patient; in addition, through addding the visual glasses of wearing for the patient can adopt more comfortable mode to carry out rehabilitation, has promoted patient's use and has experienced.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to flesh electricity biofeedback appearance.
Background
Clinically, some diseases and operations can cause damage to human nerve and muscle, and the muscle function is incomplete, such as cerebral apoplexy causes the muscle function to be damaged, and the limb movement disorder is caused; in addition, the puerpera can cause pelvic floor muscle strain, which can lead to pelvic floor muscle weakness in different degrees, urinary incontinence, pelvic organ prolapse, etc. Therefore, the myoelectricity biofeedback instrument is clinically used for rehabilitation treatment of injured muscles.
The electromyographic biofeedback instrument is also called neuromuscular rehabilitation treatment equipment, carries out damage degree evaluation on muscles by collecting electromyographic signals or pressure signals, and then carries out stimulation rehabilitation treatment on damaged muscles by utilizing different electric stimulation schemes so as to reduce muscle damage or completely recover the functions of the damaged muscles.
At present, the myoelectric biofeedback instruments on the market generally have the following problems: 1) directly to the process of patient output electrical stimulation pulse to can't guarantee the security of user and equipment 2) the patient does the myoelectricity aassessment or rehabilitation, training in-process, must just be convenient for watch equipment screen content with specific position of sitting, causes the problem such as patient experience sense is not good.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to have the security that can't guarantee user and equipment in order to overcome prior art myoelectricity biofeedback appearance to and easily cause the patient to experience the not good defect of sense, aim at provides a myoelectricity biofeedback appearance.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides a myoelectricity biofeedback instrument, which comprises a main controller and at least one stimulation voltage generation module;
the stimulation voltage generation module comprises a first controller, a human body impedance detection circuit and a stimulation voltage generation circuit;
the first controller is respectively and electrically connected with the main controller, the human body impedance detection circuit and the stimulation voltage generation circuit;
the main controller is used for sending a stimulation generation instruction to the first controller;
the first controller is used for triggering the human body impedance detection circuit to start working according to the stimulation generation instruction;
the human body impedance detection circuit is used for collecting a human body impedance value and sending the human body impedance value to the first controller;
the first controller is used for calculating a stimulation output voltage value according to the human body impedance value and sending the stimulation output voltage value to the stimulation voltage generation circuit;
the stimulation voltage generating circuit is used for generating and outputting the stimulation output voltage value;
wherein the stimulation output voltage value is related to the human body impedance value.
Preferably, the myoelectric biofeedback instrument further comprises a second controller and an acquisition module;
the second controller is electrically connected with the main controller and the acquisition module respectively;
the main controller is used for sending a signal acquisition instruction to the second controller;
the second controller is used for triggering the acquisition module to start working according to the signal acquisition instruction;
the acquisition module is used for acquiring an electromyographic signal and sending the electromyographic signal to the second controller;
the second controller is used for sending the electromyographic signals to the main controller;
the second controller is also used for receiving the stimulation generation instruction sent by the main controller, generating a control instruction according to the stimulation generation instruction and sending the control instruction to the first controller;
the first controller is used for triggering the human body impedance detection circuit to start working according to the control instruction.
Preferably, the stimulation voltage generating circuit comprises a constant current circuit, a pulse generating circuit and an adjustable voltage generating circuit;
the first controller is respectively and electrically connected with the constant current circuit, the pulse generating circuit and the adjustable voltage generating circuit;
the constant current circuit, the human body impedance detection circuit and the adjustable voltage generation circuit are all electrically connected with the pulse generation circuit;
the first controller is used for sending a set constant current control voltage to the constant current circuit;
the constant current circuit is used for generating a set constant current value according to the set constant current control voltage and sending the set constant current value to the first controller;
the pulse generating circuit is used for outputting an electrical stimulation pulse to the outside after the constant current circuit generates the set constant current value;
the human body impedance detection circuit is used for acquiring the human body impedance value and sending the human body impedance value to the first controller when the pulse generation circuit outputs an electrical stimulation pulse outwards;
the first controller is used for calculating the stimulation output voltage value according to the set constant current value and the human body impedance value.
Preferably, the constant current circuit comprises a first amplifier, a second amplifier, a capacitor, an MOS transistor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor;
the positive input end of the first amplifier is electrically connected with the first controller, the output end of the first amplifier is electrically connected with one end of the first resistor, the other end of the first resistor is electrically connected with the gate of the MOS transistor, the drain of the MOS transistor (a transistor) is electrically connected with the pulse generation circuit, and the source of the MOS transistor is electrically connected with one end of the second resistor and one end of the third resistor respectively;
the other end of the second resistor is electrically connected with the negative input end of the first amplifier and the positive input end of the second amplifier respectively, the negative input end of the second amplifier is electrically connected with one end of the fourth resistor, one end of the fifth resistor and one end of the capacitor respectively, the other end of the fourth resistor, the other end of the capacitor and the output end of the second amplifier are all electrically connected with the first controller, and the other end of the third resistor and the other end of the fifth resistor are all grounded.
Preferably, the pulse generating circuit comprises a first switch, a second switch, a third switch, a fourth switch and an equivalent resistor;
one end of the first switch is electrically connected with the adjustable voltage generating circuit, the other end of the first switch is electrically connected with one end of the second switch and one end of the equivalent resistor respectively, and the other end of the second switch is electrically connected with the drain electrode of the MOS tube;
one end of the third switch is electrically connected with the adjustable voltage generating circuit, the other end of the third switch is electrically connected with one end of the fourth switch and the other end of the equivalent resistor respectively, and the other end of the fourth switch is electrically connected with the drain electrode of the MOS tube;
the human body impedance detection circuit is used for obtaining the human body impedance value corresponding to the equivalent resistance.
Preferably, the first controller is further configured to obtain an actual constant current value generated in the constant current circuit;
the first controller is further used for calculating a target constant current control voltage input to the constant current circuit according to a difference value between the actual constant current value and the set constant current value when the actual constant current value is inconsistent with the set constant current value
After the target constant current control voltage is input into the constant current circuit, the difference value between the actual constant current value and the set constant current value is smaller than a set threshold value;
the first controller is used for collecting a set differential pressure value corresponding to a drain electrode and a source electrode of the MOS tube, and calculating the stimulation output voltage value according to the set differential pressure value, the actual constant current value, the human body impedance value and the resistance value of a third resistor in the constant current circuit.
Preferably, the myoelectricity biofeedback instrument further comprises visual glasses;
the visual glasses comprise a microprocessor, an audio and video driver, a display screen and a glasses screen;
the display screen is electrically connected with the audio and video driver;
the audio and video driver is in communication connection with the main controller;
the audio and video driver is used for converting the video content acquired from the main controller and sending the video content to the display screen for displaying;
the microprocessor is electrically connected with the display screen and the glasses screen respectively;
the microprocessor is used for projecting the video content displayed in the display screen to the glasses screen for displaying.
Preferably, the visual glasses further comprise a communication interface and an audio interface;
the audio and video driver is in communication connection with the main controller through the communication interface;
the audio interface is electrically connected with the audio and video driver;
the audio and video driver is used for converting the audio content acquired from the main controller and outputting the converted audio content to external audio equipment through the audio interface.
Preferably, the myoelectric biofeedback instrument further comprises a power management module;
the power management module is used for supplying power to the electromyographic biofeedback instrument.
The utility model discloses an actively advance the effect and lie in:
in the utility model, the human body impedance detection is carried out in real time in the process of outputting the electrical stimulation pulse, and the stimulation voltage output value output by the adjustable voltage generating circuit in the myoelectricity biofeedback instrument is adjusted in real time according to the detected human body impedance value, so that the detection of the stimulation output energy is more accurate when the stimulation current is constant, the stimulation energy is output according to the stimulation energy requirement of a patient, and the stimulation safety of the patient is better ensured; in addition, through addding the visual glasses of dressing, the patient can directly observe the information that traditional LCD screen observed through this glasses for the patient no longer need carry out pelvic floor aassessment or rehabilitation training with fixed position of sitting mode, can adopt more comfortable mode (lie flat, the recumbent etc. of arbitrary angle) to carry out rehabilitation, and it is more convenient to use, has promoted patient's use and has experienced.
Drawings
Fig. 1 is a schematic structural diagram of a myoelectricity biofeedback meter according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of the myoelectricity biofeedback instrument according to embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of a stimulation voltage generation circuit of the myoelectric biofeedback meter according to embodiment 2 of the present invention.
Fig. 4 is a schematic circuit diagram of a stimulation voltage generation circuit of the myoelectric biofeedback meter according to embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of the visual glasses of the myoelectricity biofeedback instrument of embodiment 2 of the present invention.
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the electromyographic biofeedback instrument of the present embodiment includes a main controller 1 and at least one stimulation voltage generation module 2. The main controller 1 comprises an industrial control main board and myoelectric biofeedback software loaded on the industrial control main board, and is used for processing various data in the myoelectric biofeedback instrument.
The stimulation voltage generation module 2 includes a first controller 3, a human body impedance detection circuit 4, and a stimulation voltage generation circuit 5.
The first controller 3 is electrically connected to the main controller 1, the human body impedance detection circuit 4 and the stimulus voltage generation circuit 5, respectively.
The main controller 1 is used for sending a stimulation generation instruction to the first controller 3;
the first controller 3 is used for triggering the human body impedance detection circuit 4 to start working according to the stimulation generation instruction;
the human body impedance detection circuit 4 is used for collecting a human body impedance value and sending the human body impedance value to the first controller 3;
the first controller 3 is used for calculating a stimulation output voltage value according to the human body impedance value and sending the stimulation output voltage value to the stimulation voltage generation circuit 5.
The stimulation voltage generating circuit 5 is used for generating and outputting a stimulation output voltage value;
the stimulation output voltage value is related to the human body impedance value, namely when the human body impedance is increased, the stimulation output voltage value is controlled to be increased; on the contrary, when the human body impedance is reduced, the stimulation output voltage value is controlled to be lowered. The stimulation output voltage for stimulation can be adjusted in real time along with the impedance of the human body, and stimulation energy is output according to the stimulation energy requirement of a patient, so that the stimulation safety of the patient is better and more effectively ensured.
In the embodiment, the human body impedance is detected in real time in the process of outputting the electrical stimulation pulse, and the stimulation voltage output value output by the adjustable voltage generating circuit in the electromyographic biofeedback instrument is adjusted in real time according to the detected human body impedance value, so that the stimulation output energy is more accurately detected when the stimulation current is constant, the stimulation energy is output according to the stimulation energy requirement of a patient, and the stimulation safety of the patient is better ensured.
Example 2
As shown in fig. 2, the electromyographic biofeedback instrument of the present embodiment is a further improvement of embodiment 1, specifically:
the myoelectricity biofeedback instrument further comprises a second controller 6 and an acquisition module 7, wherein the second controller 6 is electrically connected with the main controller 1 and the acquisition module 7 respectively.
The main controller 1 is used for sending a signal acquisition instruction to the second controller 6, the second controller 6 is used for triggering the acquisition module 7 to start according to the signal acquisition instruction, the acquisition module 7 is used for acquiring the myoelectric signal and sending the second controller 6, and the second controller 6 is used for sending the myoelectric signal to the main controller 1.
The second controller 6 is also electrically connected with the first controller 3; the second controller 6 is further configured to receive a stimulation generation instruction sent by the main controller, generate a control instruction according to the stimulation generation instruction, and send the control instruction to the first controller 3, where the first controller 3 is configured to trigger the human body impedance detection circuit 4 to start working according to the control instruction.
Specifically, the second controller may transmit the myoelectric signal through a USB (universal serial bus) interface or the like, or may receive the stimulation generation instruction through a USB (universal serial bus) interface or the like.
The second controller 6 is an ARM (a type of processor) master processor, and the first controller 3 is an ARM slave processor.
The first controller 3, the stimulation voltage generation circuit 5, the second controller 6 and the acquisition module 7 may be integrated in the same device, or may be respectively used as independent devices, and may be specifically set according to actual requirements.
When the stimulus voltage generation circuit 5, the second controller 6 and the acquisition module 7 are integrated in the same device, the same power supply circuit is adopted to respectively supply power to the first controller 3, the stimulus voltage generation circuit 5, the second controller 6 and the acquisition module 7.
Specifically, as shown in fig. 3, the stimulus voltage generation circuit 5 includes a constant current circuit 8, a pulse generation circuit 9, and an adjustable voltage generation circuit 10.
The first controller 3 is respectively and electrically connected with the constant current circuit 8, the pulse generating circuit 9 and the adjustable voltage generating circuit 10, and the human body impedance detecting circuit 4 is electrically connected with the pulse generating circuit 9.
The first controller 3 is used for sending a set constant current control voltage to the constant current circuit 8;
the constant current circuit 8 is used for generating a set constant current value according to the set constant current control voltage and sending the set constant current value to the first controller 3;
the pulse generating circuit 9 is used for outputting an electrical stimulation pulse to the outside after the constant current circuit 8 generates a set constant current value;
the human body impedance detection circuit 4 is used for acquiring a human body impedance value and sending the human body impedance value to the first controller 3 when the pulse generation circuit 9 outputs an electrical stimulation pulse outwards;
the first controller 3 is used for calculating a stimulation output voltage value according to the set constant current value and the human body impedance value.
As shown in fig. 4, the constant current circuit 8 includes a first amplifier Q1A second amplifier Q2A capacitor C, MOS, a tube Q, a first resistor R1A second resistor R2A third resistor R3A fourth resistor R4And a fifth resistor R5。
Wherein the first amplifier Q1Is electrically connected to the second controller 6, a first amplifier Q1And the first resistor R1Is electrically connected to the first resistor R1The other end of the resistor is electrically connected with the grid electrode of the MOS tube Q, the drain electrode of the MOS tube Q is electrically connected with the pulse generating circuit 9, and the source electrodes of the MOS tube Q are respectively connected with the second resistor R2Is electrically connected to one end of the third resistor R3;
a second resistor R2Respectively with the first amplifier Q1Negative input terminal of, a second amplifier Q2Is electrically connected to the positive input terminal of a second amplifier Q2Respectively with the fourth resistor R4One end of (1), a fifth resistor R5Is electrically connected to one end of the capacitor C, and a fourth resistor R4Another terminal of the capacitor C, another terminal of the capacitor C andsecond amplifier Q2Are all electrically connected with the second controller 6, and a fifth resistor R5And the other end of the third resistor R3The other ends of the two are all grounded. Wherein, MOS pipe Q is the NMOS pipe.
The pulse generating circuit 9 includes a first switch K1A second switch K2And a third switch K3And a fourth switch K4And an equivalent resistance RL。
Wherein, the first switch K1Is electrically connected to the adjustable voltage generating circuit 10, a first switch K1The other end of the first switch and the second switch K are respectively connected2One terminal of (1) and an equivalent resistance RLIs electrically connected to one end of the second switch K2The other end of the transistor is electrically connected with the drain electrode of the MOS transistor Q;
third switch K3Is electrically connected to the adjustable voltage generating circuit 10, and a third switch K3Is respectively connected with a fourth switch K4One terminal of (1) and an equivalent resistance RLIs electrically connected to the other end of the fourth switch K4The other end of the transistor is electrically connected with the drain electrode of the MOS transistor Q.
The human body impedance detection circuit 4 is used for obtaining the equivalent resistance RLCorresponding body impedance values.
The first controller 3 is also used to acquire an actual constant current value generated in the constant current circuit 8.
The first controller 3 is further configured to obtain a target constant current control voltage input to the constant current circuit 8 according to a difference between the actual constant current value and the set constant current value when the actual constant current value is not consistent with the set constant current value
After the target constant current control voltage is input to the constant current circuit 8, the difference value between the actual constant current value and the set constant current value is smaller than the set threshold value;
the first controller 3 is used for obtaining a set upper limit value of a voltage difference value of a collector and a source of the MOS transistor Q, and according to the set upper limit value, an actual constant current value, a human body impedance value and a third resistor R in the constant current circuit 83And calculating to obtain a stimulation output voltage value.
In addition, as shown in fig. 5, myoelectricity biofeedback appearance still includes visual glasses 11, and this visual glasses 11 are wearable glasses, and the patient just can directly observe the information that traditional LCD screen observed through this glasses like this for the patient no longer need carry out pelvic floor aassessment or rehabilitation training with fixed position of sitting mode, can adopt more comfortable mode (lie flat, the recumbent of arbitrary angle etc.) to carry out rehabilitation, and it is more convenient to use, has promoted patient's use experience.
The visual glasses 11 comprise a microprocessor 12, an audio-video driver 13, a display screen 14, a glasses screen 15, a communication interface 16, an audio interface 17 and a power circuit.
The audio interface 17 and the display screen 14 are electrically connected with the audio/video driver 13 respectively.
The audio and video driver 13 is in communication connection with the main controller through a communication interface 16; the communication interface includes, but is not limited to, an HDMI (high definition multimedia interface)/USB interface.
The HDMI/USB interface is mainly responsible for inputting power, audio and video signals, outputting driver identification information and the like.
The audio/video driver 13 is used for performing conversion processing on the video content acquired from the main controller (i.e. converting the received video signal) and sending the video content to the display screen for displaying;
the video content comprises the collected electromyographic signals, medical record management information, relevant content on electromyographic biofeedback instrument software and the like.
The audio/video driver 13 is configured to perform conversion processing on the audio content acquired from the main controller and output the converted audio signal to an external audio device (e.g., an earphone) through an audio interface.
The microprocessor 12 is respectively electrically connected with the display screen and the glasses screen;
the microprocessor 12 is used to project the video content displayed in the display screen 14 onto the glasses screen 15 for display.
The microprocessor is also used for writing configuration information into the display 14, the audio and video driver 11 and the like to configure the display, so that the liquid crystal screen can normally display.
The power circuit in the visual glasses 11 is used for supplying power to the visual glasses 11; specifically, the power supply circuit takes power from the HDMI/USB interface and generates voltages necessary for the respective portions of the eyeglasses to operate.
Wherein the audio interface includes, but is not limited to, a headphone interface; display screens include, but are not limited to, liquid crystal screens; the visual glasses are wearable visual glasses.
In addition, the myoelectricity biofeedback instrument also comprises a power supply management module, a printer and an input device;
the power supply management module is used for supplying power to the myoelectricity biofeedback instrument; specifically, the system is responsible for lithium battery charging and discharging management, external power supply and internal power supply switching management of power supply circuits in each module, and myoelectricity biofeedback software for generating voltages required by the work of all parts of the system and transmitting the power supply state to the main controller.
The printer is electrically connected with the main controller and is used for printing an evaluation report result and the like sent by the main controller;
the input device is electrically connected with the main controller, and the input device comprises a keyboard or a knob and the like and is used for inputting information to the main controller.
The working principle of the electromyographic biofeedback instrument of the present embodiment is specifically described below with reference to examples:
when a new patient goes to a hospital to do rehabilitation injury treatment, firstly, a doctor can evaluate muscle injury of the patient by using the myoelectric biofeedback instrument, and a treatment scheme is made for the patient according to an evaluation result to conduct rehabilitation treatment. And after the patient finishes the stage treatment, evaluating the muscle rehabilitation effect, and if the evaluation result shows that the injured muscle does not reach the expected rehabilitation effect, continuing rehabilitation treatment until the evaluation result shows that the injured muscle is rehabilitated.
(1) The second controller (ARM main processor) triggers the acquisition module to acquire the electromyographic signals and feeds the signals back to the main controller according to the signal acquisition instruction sent by the main controller;
(2) when the rehabilitation therapy is determined to be needed according to the electromyographic signals, the main controller sends a stimulation generation instruction, and the second controller controls the first controller (ARM slave processor) to trigger each stimulation voltage generation circuit to start working according to the stimulation generation instruction;
the working principle of the stimulation voltage generation circuit is as follows:
when an electrical stimulation signal needs to be output externally, the ARM slave processor starts the adjustable high-voltage generating circuit (namely the adjustable voltage generating circuit) to generate high voltage, and controls the constant-current circuit to generate set constant current (by adjusting the conduction impedance R of the MOS transistor)DSRealizing constant current), and then the pulse generating circuit outputs a pulse signal to the outside; and simultaneously detecting the human body impedance and the actually output constant current value, and adjusting the stimulation output voltage value output by the adjustable voltage generating circuit according to the detected human body impedance. Specifically, the method comprises the following steps:
1) outputting a preset constant current value (stimulation current intensity) I1
When the output current intensity to the human body is I1When the stimulation pulse is generated, the ARM inputs a constant current control voltage from the processor to the constant current circuit so that the constant current control voltage flows through the constant current resistor R3Has a current of I1Then resistance R3Voltage U across1＝I1*R3；
2) Outputting electrical stimulation pulses
Setting a preset constant current value I1After the completion, the pulse generating circuit outputs an electrical stimulation pulse to the outside (namely to a patient);
3) detecting impedance value of human body
In the process of outputting the electrical stimulation pulse to the patient, the body impedance detection circuit starts to work, and the equivalent resistance R in fig. 4 is detectedLAnd voltages at two ends, and recording the voltage values at two ends as U respectivelyaAnd Ub；
4) Actual output constant current value detection
At a set stimulation current intensity I1Then, to ensure that the current actually output by the constant current circuit is equal to I1Or very close to this value, it is necessary to detect the flow through the constant current resistor R3And the current value is denoted as I2；
5) Adjusting the stimulation current intensity (reducing stimulation current)
When the actual output constant current value I2＞I1By re-determining the constant current control voltage input to the constant current circuitThe value of the current is adjusted to make I2＝I1Or make I2≈I1At the moment, the error of the two is not more than plus or minus 10 percent;
when the actual output constant current value I2＜I1Then, the actual output constant current value of the constant current circuit is adjusted by re-determining the constant current control voltage value input to the constant current circuit so that I2＝I1Or make I2≈I1At the moment, the error of the two is not more than plus or minus 10 percent;
6) calculating voltage U between DS (drain-source) of MOS tubeQSetting the maximum voltage output by the adjustable voltage generating circuit as UHmaxVoltage U of MOS tubeQThe calculation is as follows:
UQ＝UHmax-Ua-Ub-I2*R3
6) determining the voltage drop value of MOS tube
Because the MOS tube has the on-resistance R when being completely conductedDSNot more than 3 omega, when the maximum stimulation current of the stimulation voltage generating circuit is 100mA, UQThe value of (1) is 0.3V, which shows that the voltage drop U on the MOS tube is after the output current of the stimulation voltage generation circuit reaches the set intensityQNot less than 0.3V, the constant current stimulating voltage generating circuit can work normally, so the voltage drop U of the MOS tubeQTaking a fixed value as 10V; of course, the voltage drop U of the MOS transistorQThe value of (a) can be adjusted according to actual requirements.
7) Adjusting output voltage U of high voltage generating circuitH
UHThe calculation formula is as follows:
UH＝10+|Ua-Ub|+I2*R3
wherein when obtained UQ>At 10V, the output voltage of the adjustable voltage generating circuit needs to be reduced. I Ua-Ub|＝I2*RL
In the embodiment, the human body impedance detection is carried out in real time in the process of outputting the electrical stimulation pulse, and the stimulation voltage output value output by the adjustable voltage generating circuit in the electromyographic biofeedback instrument is adjusted in real time according to the detected human body impedance value, so that the detection of the stimulation output energy is more accurate when the stimulation current is constant, the stimulation energy is output according to the stimulation energy requirement of a patient, and the stimulation safety of the patient is better ensured; in addition, through addding the visual glasses of dressing, the patient can directly observe the information that traditional LCD screen observed through this glasses for the patient no longer need carry out pelvic floor aassessment or rehabilitation training with fixed position of sitting mode, can adopt more comfortable mode (lie flat, the recumbent etc. of arbitrary angle) to carry out rehabilitation, and it is more convenient to use, has promoted patient's use and has experienced.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.
Claims (9)
1. The electromyographic biofeedback instrument is characterized by comprising a main controller and at least one stimulation voltage generation module;
the stimulation voltage generation module comprises a first controller, a human body impedance detection circuit and a stimulation voltage generation circuit;
the first controller is respectively and electrically connected with the main controller, the human body impedance detection circuit and the stimulation voltage generation circuit;
the main controller is used for sending a stimulation generation instruction to the first controller;
the first controller is used for triggering the human body impedance detection circuit to start working according to the stimulation generation instruction;
the human body impedance detection circuit is used for collecting a human body impedance value and sending the human body impedance value to the first controller;
the first controller is used for calculating a stimulation output voltage value according to the human body impedance value and sending the stimulation output voltage value to the stimulation voltage generation circuit;
the stimulation voltage generating circuit is used for generating and outputting the stimulation output voltage value;
wherein the stimulation output voltage value is related to the human body impedance value.
2. The electromyographic biofeedback meter of claim 1, further comprising a second controller and an acquisition module;
the second controller is electrically connected with the main controller and the acquisition module respectively;
the main controller is used for sending a signal acquisition instruction to the second controller;
the second controller is used for triggering the acquisition module to start working according to the signal acquisition instruction;
the acquisition module is used for acquiring an electromyographic signal and sending the electromyographic signal to the second controller;
the second controller is used for sending the electromyographic signals to the main controller;
the second controller is also used for receiving the stimulation generation instruction sent by the main controller, generating a control instruction according to the stimulation generation instruction and sending the control instruction to the first controller;
the first controller is used for triggering the human body impedance detection circuit to start working according to the control instruction.
3. The electromyographic biofeedback meter of claim 1, wherein the stimulus voltage generating circuit comprises a constant current circuit, a pulse generating circuit, and an adjustable voltage generating circuit;
the first controller is respectively and electrically connected with the constant current circuit, the pulse generating circuit and the adjustable voltage generating circuit;
the constant current circuit, the human body impedance detection circuit and the adjustable voltage generation circuit are all electrically connected with the pulse generation circuit;
the first controller is used for sending a set constant current control voltage to the constant current circuit;
the constant current circuit is used for generating a set constant current value according to the set constant current control voltage and sending the set constant current value to the first controller;
the pulse generating circuit is used for outputting an electrical stimulation pulse to the outside after the constant current circuit generates the set constant current value;
the human body impedance detection circuit is used for acquiring the human body impedance value and sending the human body impedance value to the first controller when the pulse generation circuit outputs an electrical stimulation pulse outwards;
the first controller is used for calculating the stimulation output voltage value according to the set constant current value and the human body impedance value.
4. The electromyographic biofeedback instrument according to claim 3, wherein the constant current circuit comprises a first amplifier, a second amplifier, a capacitor, a MOS (metal oxide semiconductor) transistor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor;
the positive input end of the first amplifier is electrically connected with the first controller, the output end of the first amplifier is electrically connected with one end of the first resistor, the other end of the first resistor is electrically connected with the grid electrode of the MOS tube, the drain electrode of the MOS tube is electrically connected with the pulse generation circuit, and the source electrode of the MOS tube is electrically connected with one end of the second resistor and one end of the third resistor respectively;
the other end of the second resistor is electrically connected with the negative input end of the first amplifier and the positive input end of the second amplifier respectively, the negative input end of the second amplifier is electrically connected with one end of the fourth resistor, one end of the fifth resistor and one end of the capacitor respectively, the other end of the fourth resistor, the other end of the capacitor and the output end of the second amplifier are all electrically connected with the first controller, and the other end of the third resistor and the other end of the fifth resistor are all grounded.
5. The electromyographic biofeedback meter of claim 4, wherein the pulse generation circuit comprises a first switch, a second switch, a third switch, a fourth switch, and an equivalent resistance;
one end of the first switch is electrically connected with the adjustable voltage generating circuit, the other end of the first switch is electrically connected with one end of the second switch and one end of the equivalent resistor respectively, and the other end of the second switch is electrically connected with the drain electrode of the MOS tube;
one end of the third switch is electrically connected with the adjustable voltage generating circuit, the other end of the third switch is electrically connected with one end of the fourth switch and the other end of the equivalent resistor respectively, and the other end of the fourth switch is electrically connected with the drain electrode of the MOS tube;
the human body impedance detection circuit is used for obtaining the human body impedance value corresponding to the equivalent resistance.
6. The electromyographic biofeedback meter according to claim 5, wherein said first controller is further configured to obtain an actual constant current value generated in said constant current circuit;
the first controller is further used for calculating a target constant current control voltage input to the constant current circuit according to a difference value between the actual constant current value and the set constant current value when the actual constant current value is inconsistent with the set constant current value;
after the target constant current control voltage is input into the constant current circuit, the difference value between the actual constant current value and the set constant current value is smaller than a set threshold value;
the first controller is used for collecting a set differential pressure value corresponding to a drain electrode and a source electrode of the MOS tube, and calculating the stimulation output voltage value according to the set differential pressure value, the actual constant current value, the human body impedance value and the resistance value of a third resistor in the constant current circuit.
7. The electromyographic biofeedback instrument according to any one of claims 1 to 6, further comprising visualization glasses;
the visual glasses comprise a microprocessor, an audio and video driver, a display screen and a glasses screen;
the display screen is electrically connected with the audio and video driver;
the audio and video driver is in communication connection with the main controller;
the audio and video driver is used for converting the video content acquired from the main controller and sending the video content to the display screen for displaying;
the microprocessor is electrically connected with the display screen and the glasses screen respectively;
the microprocessor is used for projecting the video content displayed in the display screen to the glasses screen for displaying.
8. The electromyographic biofeedback meter of claim 7, wherein said visual glasses further comprise a communication interface and an audio interface;
the audio and video driver is in communication connection with the main controller through the communication interface;
the audio interface is electrically connected with the audio and video driver;
the audio and video driver is used for converting the audio content acquired from the main controller and outputting the converted audio content to external audio equipment through the audio interface.
9. The electromyographic biofeedback meter according to claim 1, further comprising a power management module;
the power management module is used for supplying power to the electromyographic biofeedback instrument.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972893A (en) * | 2021-02-10 | 2021-06-18 | 南京吉枢康智能科技有限公司 | Intermediate frequency electrotherapy equipment capable of automatically modulating waveform |
| CN113318349A (en) * | 2021-06-30 | 2021-08-31 | 未来穿戴技术有限公司 | Wearable massage apparatus, energy parameter adjustment method, device and storage medium |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972893A (en) * | 2021-02-10 | 2021-06-18 | 南京吉枢康智能科技有限公司 | Intermediate frequency electrotherapy equipment capable of automatically modulating waveform |
| CN113318349A (en) * | 2021-06-30 | 2021-08-31 | 未来穿戴技术有限公司 | Wearable massage apparatus, energy parameter adjustment method, device and storage medium |
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