CN102641129A - Device for acquiring myosthenic and myoelectric signals in real time and simultaneously displaying myosthenic and myoelectric signals - Google Patents

Abstract

A device for real-time collection and simultaneous display of muscle strength and myoelectric signals, comprising a main control computer, a main display screen, myoelectric signal collection electrodes and a Bluetooth muscle strength collection module; the main control computer is equipped with a muscle strength signal collection module, a myoelectric The signal acquisition module, the muscle strength signal display module and the myoelectric signal display module, wherein the myoelectric signal acquisition module is connected to the myoelectric signal acquisition electrode through the signal connection line, and the muscle strength signal acquisition module is connected to the bluetooth muscle strength acquisition module by wireless communication. The myoelectric signal display module and the muscle strength signal display module are respectively connected to the main display screen through signal connection lines. For the first time, the present invention realizes simultaneous display of muscle strength signals and electromyographic signals collected in real time in the same interface, which can more truly reflect the patient's muscle function and help doctors make better assessments of the patient's muscle function.

Description

A device for real-time collection and simultaneous display of muscle strength and electromyographic signals

technical field

The invention relates to a medical device, in particular to a device for real-time collection and simultaneous display of muscle strength and myoelectric signals.

Background technique

According to the survey, in 1987, the national prevalence of cerebrovascular disease was as high as 245.58/100,000, and the death rate was 77.15/100,000. In recent years, its morbidity rate is still rising, and has increased to 219/100,000 people. Although the mortality rate has decreased due to the development of medical care, the disability rate is very high. In addition, the aging trend of our country's population is obvious, and natural disasters and traffic accidents occur frequently, resulting in an increase in the number of disabled people year by year, which brings great pain to patients and their families. In the rehabilitation training of patients, the assessment and training of muscle strength function are particularly important.

At present, in the system for evaluating muscle strength function, either the patient's muscle strength signal is used for corresponding evaluation, or the patient's myoelectric signal is used for evaluation, but both methods have certain defects, which make it difficult for the patient to There are certain errors in the assessment of muscle strength function, which is not very correct. Only by evaluating the muscle function of the patient through the relevant parameters of the patient's muscle strength signal and myoelectric signal at the same time can the doctor's diagnosis of the patient be more accurate.

Contents of the invention

The object of the present invention is to provide a device for real-time collection and simultaneous display of muscle strength and myoelectric signals in order to solve the above-mentioned problems in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions: a device for real-time collection and simultaneous display of muscle strength myoelectric signals, including a main control computer, a main display screen, myoelectric signal collection electrodes and a bluetooth muscle strength collection module; The display screen is connected with the electrical signal of the main control computer, and the electromyographic signal acquisition electrode is connected with the main control computer through the signal connection line; the bluetooth muscle strength acquisition module is connected with the electrical signal of the main control computer; Acquisition module, myoelectric signal acquisition module, muscle strength signal display module and myoelectric signal display module, wherein the muscle strength signal acquisition module is connected to the bluetooth muscle strength acquisition module by wireless communication, and the myoelectric signal acquisition module is connected to the myoelectric signal through a signal connection line The signal acquisition electrodes are connected, and the muscle strength signal display module and the myoelectric signal display module are respectively connected to the main display screen through signal connection lines.

The bluetooth muscle strength acquisition module includes a pressure sensor, a signal amplification module and a bluetooth transmission module, the pressure sensor, the signal amplification module and the bluetooth transmission module are connected and integrated by electrical signals sequentially, and the muscle strength signal acquisition module includes a bluetooth receiving module.

The muscle strength signal display module and the myoelectric signal display module work together to simultaneously display the muscle strength signal and the myoelectric signal on the same interface of the main display screen.

For the first time, the present invention realizes the simultaneous display of muscle strength signals and electromyographic signals collected in real time in the same interface, which can more truly reflect the patient's muscle function and help doctors make better assessments of the patient's muscle function.

Description of drawings

Fig. 1 is the structural block diagram of the device of real-time collection and simultaneous display of muscle force myoelectric signal of the present invention;

Figure 2 is the simultaneous display interface of muscle strength and electromyographic signals.

Detailed ways

Referring to FIG. 1 , the device for real-time collection and simultaneous display of muscle strength and myoelectric signals of the present invention includes a main control computer 1 , a main display screen 2 , myoelectric signal collection electrodes 3 and a Bluetooth muscle strength collection module 4 . The main display screen 2 is connected with the main control computer 1 by electric signal, and the electromyographic signal collection electrode 3 is connected with the main control computer 1 through a signal connection line; the bluetooth muscle strength acquisition module 4 is connected with the main control computer 1 through wireless communication. Main control computer 1 is provided with muscle strength signal acquisition module 11, myoelectric signal acquisition module 12, muscle strength signal display module 13 and myoelectric signal display module 14, wherein muscle strength signal acquisition module 11 and bluetooth muscle strength acquisition module 4 Connected by wireless communication, the myoelectric signal acquisition module 12 is connected to the myoelectric signal acquisition electrode 3 through a signal connection line, and the muscle strength signal display module 13 and the myoelectric signal display module 14 are respectively connected to the main display screen 2 through a signal connection line.

The Bluetooth muscle strength acquisition module 4 in the present invention comprises a pressure sensor 41, a signal amplification module 42 and a Bluetooth transmission module 43, and the pressure sensor 41, the signal amplification module 42 and the Bluetooth transmission module 43 are sequentially connected and integrated with electrical signals, and the muscle strength signal The collection module 11 includes a bluetooth receiving module.

The muscle strength signal display module 13 and the myoelectric signal display module 14 in the present invention work together to display the muscle strength signal and the myoelectric signal on the same interface of the main display screen at the same time, as shown in Figure 2, in the figure, located The up and down vibration curve on the upper part is the myoelectric signal line, and the wavy curve on the lower part is the muscle strength signal line.

Concrete implementation steps of the present invention are as follows:

Attach the electromyographic signal acquisition electrodes and the Bluetooth muscle strength acquisition module to the muscle surface of the patient respectively. Then start the device.

First click the A/D setting in the menu bar, and a PCI card setting dialog box will appear at this time. Users can set the related settings of the PCI acquisition card in this dialog box according to their own needs, including the sampling frequency and sampling frequency of the PCI acquisition card. The amplitude, conversion type after sampling, trigger mode of sampling, etc. are set, and the corresponding settings are saved after clicking OK.

Click A/D Sampling Points in the menu bar, and the Sampling Points dialog box will appear. Through this dialog box, users can set the sampling points collected by PCI according to their own needs. After clicking OK, the corresponding settings can be performed. save.

Click the Bluetooth parameter setting, and a Bluetooth setting dialog box will be generated at this time. The user can set the Bluetooth parameters in this dialog box according to his own needs, including the serial port, baud rate, parity bit, data bit, stop bit, Bluetooth switch and other settings, click OK to save the corresponding settings.

After configuring the corresponding parameters of the PCI acquisition card and Bluetooth through 12, the acquisition work can be started. Just click the run button on the main interface (object of CDynamomterView class) to start collecting and displaying myoelectric signals and muscle strength signals: collect myoelectric signals through an independent thread, and connect to The muscle signal is collected, so that the collection of the myoelectric signal and the muscle force signal is completed at the same time. During the collection process, the myoelectric signal and the muscle force signal can be displayed in one interface at the same time.

After the corresponding configuration of the PCI acquisition card through 12, the acquisition work can be started. You only need to click the run button on the main interface (the object of the CDynamomterView class) to start collecting and displaying the myoelectric and muscle force signals.

The process of collecting and displaying EMG signals is as follows:

a. By calling the OnAdintRun() function, the main work of this function is: 1. Open the device: if there is an error in opening the device, a prompt message indicating that the opening fails will be generated; 2. Obtain the configuration of the device, that is, obtain the user's information on the PCI acquisition card Configuration, if the configuration fails, close the PCI acquisition card; 3. Driver memory allocation and locking; 4. Memory allocation and locking of variables required for user data acquisition; 5. Determine the type of interrupt event, and set it to be able to Interrupt (if there is an error here, not only the device must be closed, but also the variable defined and locked before must be unlocked and released between the operations of closing the device); 6. Start interrupt mode data transmission; 7. After the above preparations are completed, If the time type allows interruption, a user thread can be created for data collection, and a user thread UserThread can be created here.

b. The main job of the independent thread UserThread is to detect the status of the PCI acquisition work, for example, when there is an interruption, the PCI performs data acquisition, and when the data exchange is enabled, it performs data conversion, etc.

c. The whole process of collection is completed through interruption. adBufChangeEvent() event response function, initialize the PT_FAIChek structure in this function and call the DRV_FAICheck function to check and return the current state of data acquisition: and perform data acquisition by calling the DRV_FAITransfer function, when the buffer area is full 1/2, or the next 1 /2, in the adBufChangeEvent() function, send the WM_ADOPTEND message, and respond to the WM_ADOPTEND message through the message response function: OnAdoptend(), and take the value from the buffer area and perform corresponding conversion. Until the number of values read from the buffer area exceeds the pixels in the horizontal direction of the drawing area, the message UpdateWindow() is sent to respond in the OnDraw() function. The collected signal is drawn, and when the entire drawing area is drawn, the next drawing is performed by redrawing.

The acquisition and display process of muscle strength signals is as follows:

a. By calling the OnAdintRun() function, this function mainly realizes whether the host and the device are connected. If the connection is established, use the Bluetooth parameters set in 3 to initialize the serial port.

b. After initialization, write the handshake protocol instruction to the serial port by calling the write serial port function. If the written protocol is consistent with the protocol set by the lower computer, the lower computer device will respond to the instruction in an interrupted manner and send a collection The received data is sent to the host computer.

c. The upper computer collects and saves the data transmitted by the lower computer by detecting the interrupt sent by the lower computer, and draws the collected data through the ondraw function.

Through the above steps, the acquisition and simultaneous display of the muscle strength signal and the electromyographic signal are realized.

Claims (3)

1. a kind of device of muscle strength myoelectric signal real-time collection and display simultaneously is characterized in that: comprise main control computer, main display screen, myoelectric signal acquisition electrode and bluetooth muscle strength acquisition module; Main display screen and main control computer electronic The signal is connected, and the myoelectric signal acquisition electrode is connected with the main control computer through the signal connection line; the bluetooth muscle strength acquisition module is connected with the main control computer electrical signal; Module, muscle strength signal display module and myoelectric signal display module, wherein the muscle strength signal acquisition module is connected with the Bluetooth muscle strength acquisition module for wireless communication, and the myoelectric signal acquisition module is connected with the myoelectric signal acquisition electrode through the signal connection line, and the muscle strength The signal display module and the myoelectric signal display module are respectively connected to the main display screen through signal connection lines. 2. the device of real-time collection and simultaneous display of muscle strength myoelectric signal as claimed in claim 1, is characterized in that: described bluetooth muscle strength collection module comprises pressure sensor, signal amplifying module and bluetooth transmission module, pressure sensor, signal The amplifying module and the bluetooth sending module are connected by electric signals sequentially and integrated into one body, and the muscle strength signal collection module includes a bluetooth receiving module. 3. The device for real-time collection and simultaneous display of muscle strength and myoelectric signals as claimed in claim 1, characterized in that: the muscle strength signal display module and the myoelectric signal display module work together to combine the muscle strength signals and myoelectric signals Signals are simultaneously displayed on the same interface on the main display.

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