阅读说明：本技术 一种肌电图仪的测试方法和装置 (Electromyograph testing method and device ) 是由 王兴 李开生 陈媛 于 2021-09-28 设计创作，主要内容包括：本申请公开了一种肌电图仪的测试方法和装置,该方法包括：控制与所述肌电图仪连接的信号发生器发出初始电信号；按照第一预定步长逐步提高所述信号发生器发出电信号的电压峰值；按照第二预定步长逐步提高所述信号发生器发出电信号的频率；每次所述第一预定步长和/或所述第二预定步长发生变化之后,获取所述肌电图仪对所述电信号测试得到的结果；将每次测试得到的结果与所述信号发生器发出的电信号进行比较,确定测试是否通过。通过本申请解决了现有技术中还没有对肌电图仪如何进行测试的方案所导致的问题,从而为客观评估肌电图仪的性能提供了数据。(The application discloses a method and a device for testing an electromyograph, wherein the method comprises the following steps: controlling a signal generator connected with the electromyograph to send an initial electric signal; gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length; gradually increasing the frequency of the electrical signal sent by the signal generator according to a second preset step length; obtaining a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed every time; and comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not. The problem caused by the fact that no scheme for testing the electromyograph exists in the prior art is solved, and therefore data are provided for objectively evaluating the performance of the electromyograph.)

1. A method for testing an electromyograph is characterized by comprising the following steps:

controlling a signal generator connected with the electromyograph to send out an initial electric signal, wherein the voltage peak value of the initial electric signal is a first preset voltage peak value, the frequency of the initial electric signal is a first preset frequency, and the voltage waveform of the initial electric signal is a first preset waveform;

gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length;

gradually increasing the frequency of the electrical signal sent by the signal generator according to a second preset step length;

obtaining a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed every time;

and comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not.

2. The method of claim 1, wherein stepping up the voltage peak of the electrical signal emitted by the signal generator in first predetermined steps comprises:

and gradually increasing the voltage peak value of the electric signal emitted by the signal generator according to the first preset step until the voltage peak value of the electric signal emitted by the electric signal generator reaches a second preset voltage peak value, wherein the second preset voltage peak value is larger than the first preset voltage peak value.

3. The method of claim 2, wherein the first predetermined voltage peak is 10 microvolts and the second predetermined voltage peak is 100 millivolts.

4. The method of claim 1, wherein gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step size comprises:

gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step until the frequency of the electrical signal emitted by the signal generator reaches a second predetermined frequency, wherein the second predetermined frequency is greater than the first predetermined frequency.

5. The method of claim 4, wherein the first predetermined frequency is 50 Hz and the second predetermined frequency is 1000 Hz.

6. An electromyography testing device, comprising:

the electromyograph comprises a control module, a signal generator and a power supply module, wherein the control module is used for controlling the signal generator connected with the electromyograph to send out an initial electric signal, the voltage peak value of the initial electric signal is a first preset voltage peak value, the frequency of the initial electric signal is a first preset frequency, and the voltage waveform of the initial electric signal is a first preset waveform;

the voltage module is used for gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length;

the frequency module is used for gradually increasing the frequency of the electric signal sent by the signal generator according to a second preset step length;

the acquisition module is used for acquiring a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed each time;

and the comparison module is used for comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not.

7. The apparatus of claim 6, wherein the voltage module is configured to:

and gradually increasing the voltage peak value of the electric signal emitted by the signal generator according to the first preset step until the voltage peak value of the electric signal emitted by the electric signal generator reaches a second preset voltage peak value, wherein the second preset voltage peak value is larger than the first preset voltage peak value.

8. The apparatus of claim 7 wherein the first predetermined voltage peak is 10 microvolts and the second predetermined voltage peak is 100 millivolts.

9. The apparatus of claim 6, wherein the frequency module is configured to:

gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step until the frequency of the electrical signal emitted by the signal generator reaches a second predetermined frequency, wherein the second predetermined frequency is greater than the first predetermined frequency.

10. The device of claim 9, wherein the first predetermined frequency is 50 hz and the second predetermined frequency is 1000 hz.

Technical Field

The application relates to the field of medical equipment testing, in particular to a testing method and a testing device of an electromyograph.

Background

The muscles of the human body can be classified into three types, i.e., skeletal muscles, cardiac muscles and smooth muscles according to their structures, wherein the skeletal muscles account for about 40% of the body weight. Skeletal muscle is innervated by somatic motor nerves, and a motor neuron and all the muscle fibers innervated by it constitute a motor unit. When the motor nerve is excited, an electrophysiological signal is generated. The electromyography can record the curve of the electrical activity of the muscle when the muscle is at rest or contracted. In the traditional EMG detection method, fine electrodes such as needle electrodes and the like are directly inserted into muscle tissues for collection to obtain inserted electromyographic signals, and the mode brings great pain to a subject.

The surface electromyography is that detection electrodes are placed on the surface of skin to measure EMG signals, and the signals can reflect the functions of muscles of a human body. The surface electromyography is widely applied to the fields of clinical diagnosis, rehabilitation medicine, industrial injury evaluation and the like due to the advantages of no wound and portability. At present, the surface electromyograph has no corresponding national measurement and calibration standard, so that no scheme for testing the electromyograph exists in the prior art, and the performance of the electromyograph cannot be objectively evaluated.

Disclosure of Invention

The embodiment of the application provides a method and a device for testing an electromyograph, which are used for at least solving the problem caused by the fact that no scheme for testing the electromyograph exists in the prior art.

According to an aspect of the present application, there is provided a method of testing an electromyograph, including: controlling a signal generator connected with the electromyograph to send out an initial electric signal, wherein the voltage peak value of the initial electric signal is a first preset voltage peak value, the frequency of the initial electric signal is a first preset frequency, and the voltage waveform of the initial electric signal is a first preset waveform; gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length; gradually increasing the frequency of the electrical signal sent by the signal generator according to a second preset step length; obtaining a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed every time; and comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not.

Further, the step up of the voltage peak of the electrical signal emitted by the signal generator according to the first predetermined step comprises: and gradually increasing the voltage peak value of the electric signal emitted by the signal generator according to the first preset step until the voltage peak value of the electric signal emitted by the electric signal generator reaches a second preset voltage peak value, wherein the second preset voltage peak value is larger than the first preset voltage peak value.

Further, the first predetermined voltage peak is 10 microvolts, and the second predetermined voltage peak is 100 millivolts.

Further, the step up of the frequency of the electrical signal emitted by the signal generator by a second predetermined step size comprises: gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step until the frequency of the electrical signal emitted by the signal generator reaches a second predetermined frequency, wherein the second predetermined frequency is greater than the first predetermined frequency.

Further, the first predetermined frequency is 50 hz, and the second predetermined frequency is 1000 hz.

According to another aspect of the present application, there is also provided an electromyograph testing apparatus, including: the electromyograph comprises a control module, a signal generator and a power supply module, wherein the control module is used for controlling the signal generator connected with the electromyograph to send out an initial electric signal, the voltage peak value of the initial electric signal is a first preset voltage peak value, the frequency of the initial electric signal is a first preset frequency, and the voltage waveform of the initial electric signal is a first preset waveform; the voltage peak value module is used for gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length; the frequency module is used for gradually increasing the frequency of the electric signal sent by the signal generator according to a second preset step length; the acquisition module is used for acquiring a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed each time; and the comparison module is used for comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not.

Further, the voltage peaking module is to: and gradually increasing the voltage peak value of the electric signal emitted by the signal generator according to the first preset step until the voltage peak value of the electric signal emitted by the electric signal generator reaches a second preset voltage peak value, wherein the second preset voltage peak value is larger than the first preset voltage peak value.

Further, the first predetermined voltage peak is 10 microvolts, and the second predetermined voltage peak is 100 millivolts.

Further, the frequency module is to: gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step until the frequency of the electrical signal emitted by the signal generator reaches a second predetermined frequency, wherein the second predetermined frequency is greater than the first predetermined frequency.

Further, the first predetermined frequency is 50 hz, and the second predetermined frequency is 1000 hz.

In the embodiment of the application, a signal generator connected with the electromyograph is controlled to send out an initial electric signal, wherein the voltage peak value of the initial electric signal is a first preset voltage peak value, and the frequency of the initial electric signal is a first preset frequency; gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length; gradually increasing the frequency of the electrical signal sent by the signal generator according to a second preset step length; obtaining a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed every time; and comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not. The problem caused by the fact that no scheme for testing the electromyograph exists in the prior art is solved, and therefore data are provided for objectively evaluating the performance of the electromyograph.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

fig. 1 is a flowchart of a test of an electromyograph according to an embodiment of the present application.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.

In the present embodiment, a method for testing an electromyography is provided, and fig. 1 is a flowchart of a test of an electromyography according to an embodiment of the present application, where as shown in fig. 1, the flowchart includes the following steps:

step S102, controlling a signal generator connected with the electromyograph to send out an initial electric signal, wherein the voltage peak value of the initial electric signal is a first preset voltage peak value, the frequency of the initial electric signal is a first preset frequency, and the voltage waveform of the initial electric signal is a first preset waveform;

step S104, gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length;

for example, the voltage peak of the electrical signal emitted by the signal generator may be increased step by step according to the first predetermined step until the voltage peak of the electrical signal emitted by the electrical signal generator reaches a second predetermined voltage peak, wherein the second predetermined voltage peak is greater than the first predetermined voltage peak. Preferably, the first predetermined voltage peak is 10 microvolts and the second predetermined voltage peak is 100 millivolts.

Step S106, gradually increasing the frequency of the electric signal sent by the signal generator according to a second preset step length;

for example, the step up of the frequency of the electrical signal emitted by the signal generator by a second predetermined step comprises: gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step until the frequency of the electrical signal emitted by the signal generator reaches a second predetermined frequency, wherein the second predetermined frequency is greater than the first predetermined frequency. Preferably, the first predetermined frequency is 50 hz and the second predetermined frequency is 1000 hz.

As an optional embodiment, before sending the initial signal, scanning a barcode of the electromyograph by using a mobile terminal to obtain parameters of the electromyograph, wherein the parameters include a range of voltage peaks that can be measured by the electromyograph and a range of frequencies that can be measured; and sending the parameter of the electromyograph to a testing device (or testing equipment) for executing the steps through the mobile terminal, wherein the testing device or equipment configures the first preset voltage peak value, the second preset voltage peak value, the first preset frequency and the second preset frequency according to the parameter of the electromyograph.

Step S108, obtaining a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed each time;

step S110, comparing the result obtained by each test with the electric signal sent by the signal generator;

if the difference value between the test result and the voltage peak value and the frequency of the electric signal is in the preset range, the test is passed, and calibration is not needed.

Preferably, a step S112 of calibrating the electromyograph according to the comparison result may be further included.

The electromyograph is generally provided with a relevant calibration part in advance, and the calibration on the electromyograph can be realized through the calibration part on the electromyograph.

The problems caused by the fact that no scheme for testing the electromyograph exists in the prior art are solved through the steps, and therefore data are provided for objectively evaluating the performance of the electromyograph.

As an alternative embodiment, before the step S102 shown in fig. 1, the shape of the waveform of the electrical signal emitted by the signal generator may be configured in advance, for example, a regular rectangular wave, a triangular wave, a sine wave, or the like may be emitted, one of the waveforms may be selected to perform the steps S102 to S112, the result of the electromyograph test under the selected waveform may be determined, the result of the test may be compared with the signal emitted by the signal generator, and calibration may be performed according to the comparison result.

After the calibration is completed for the selected one waveform, another waveform is selected and the steps S102 to S112 are performed again until the calibration of the electromyograph is completed for all the waveforms configured in advance.

The impedance of the electromyograph can also be tested, for example, the output end of the signal generator is connected to the recording end of an amplifier of the electromyograph, and the other output end of the signal generator is connected to the reference end of the amplifier of the electromyograph and is connected with the grounding end. And setting the bandwidth of the electromyograph amplifier to be 1 Hz-1 kHz. The signal generator outputs 100mV 100Hz sine wave signals. And measuring the voltage peak value of the input end of the amplifier by using an oscilloscope, and calculating the resistance of the electromyograph according to the voltage peak value of the input end.

And after calculating the resistance of the electromyograph, acquiring the resistance of treatment equipment matched with the electromyograph for use, and selecting the electromyograph matched with the resistance value of the treatment equipment according to the resistance of the treatment equipment to be connected with the treatment equipment and used together.

In another alternative embodiment, before calibrating the electromyograph, the electromyograph may be used to test skin electrical signals of a plurality of different human bodies, draw images of the skin electrical signals, integrate the images of the plurality of different human bodies to obtain an average image of the skin electrical signals, and set a shape of a waveform emitted by the signal generator according to a shape of the skin electrical signals in the average image of the skin electrical signals, where the shape is a shape that simulates a shape of human skin electrical signals. After the signal generator calibrates the electromyograph by using all pre-configured waveforms, the electromyograph is tested by using the shape of the skin-imitated electric signal according to the steps S102 to S112, and if the electromyograph does not need to be calibrated in the testing process, the test is passed. Otherwise, calibrating the electromyograph by using the wave imitating the shape of the human skin electric signal.

In this embodiment, an electronic device is provided, comprising a memory in which a computer program is stored and a processor configured to run the computer program to perform the method in the above embodiments.

The programs described above may be run on a processor or may also be stored in memory (or referred to as computer-readable media), which includes both non-transitory and non-transitory, removable and non-removable media, that implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

These computer programs may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks, and corresponding steps may be implemented by different modules.

Such an apparatus or system is provided in this embodiment. According to another aspect of the present application, there is also provided an electromyograph testing apparatus, including: the electromyograph comprises a control module, a signal generator and a power supply module, wherein the control module is used for controlling the signal generator connected with the electromyograph to send out an initial electric signal, the voltage peak value of the initial electric signal is a first preset voltage peak value, and the frequency of the initial electric signal is a first preset frequency; the voltage peak value module is used for gradually increasing the voltage peak value of the electric signal sent by the signal generator according to a first preset step length; the frequency module is used for gradually increasing the frequency of the electric signal sent by the signal generator according to a second preset step length; the acquisition module is used for acquiring a result obtained by the electromyograph through testing the electric signal after the first preset step length and/or the second preset step length are/is changed each time; and the comparison module is used for comparing the result obtained by each test with the electric signal sent by the signal generator to determine whether the test is passed or not. Preferably, the method further comprises the following steps: and the calibration module is used for calibrating the electromyograph according to the comparison result.

The system or the apparatus is used for implementing the functions of the method in the foregoing embodiments, and each module in the system or the apparatus corresponds to each step in the method, which has been described in the method and is not described herein again.

For example, the voltage peaking module is to: and gradually increasing the voltage peak value of the electric signal emitted by the signal generator according to the first preset step until the voltage peak value of the electric signal emitted by the electric signal generator reaches a second preset voltage peak value, wherein the second preset voltage peak value is larger than the first preset voltage peak value. Optionally, the first predetermined voltage peak is 10 microvolts and the second predetermined voltage peak is 100 millivolts.

For another example, the frequency module is configured to: gradually increasing the frequency of the electrical signal emitted by the signal generator by a second predetermined step until the frequency of the electrical signal emitted by the signal generator reaches a second predetermined frequency, wherein the second predetermined frequency is greater than the first predetermined frequency. Optionally, the first predetermined frequency is 50 hz and the second predetermined frequency is 1000 hz.

The problem caused by the fact that no scheme for testing the electromyograph exists in the prior art is solved through the embodiment, and therefore data are provided for objectively evaluating the performance of the electromyograph.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.