Surface electromyography evaluation diagnosis and biofeedback electrical stimulation treatment method

Abstract

The invention discloses a surface electromyography evaluation diagnosis and biofeedback electrical stimulation treatment method. The method comprises the following operation steps: S10) when an MCU module receives a surface electromyography signal acquisition demand, the MCU module sends out a switch driving signal to drive a signal electrode and a reference electrode to perform surface electromyography signal acquisition; and S20) when the MCU module receives an electrical stimulation demand, a reference electrode switch is turned off, a switch driving signal is given out to drive the signalelectrode to separate from a surface electromyography acquisition module and to be connected with an electrical stimulation output module; and when the MCU module outputs a pulse signal for controlling the stimulation time sequence to the electrical stimulation output module, the stimulation current amplitude is controlled by controlling the output of a digital-to-analog converter, a constant-current stimulation signal is output, and then an electrical stimulation signal is output to the signal electrode. The acquisition quality of surface electromyogram signals and the output precision of electrical stimulation signals are improved at the same time, and the adopted system structure is low in cost and small in occupied size, and is very suitable for application and popularization in actualclinical evaluation diagnosis and treatment.

Description

technical field [0001] The invention belongs to the field of biomedicine, and in particular relates to a method for evaluating and diagnosing surface myoelectricity and biofeedback electric stimulation treatment. Background technique [0002] The surface myoelectricity evaluation and diagnosis technology uses the non-invasive detection of myoelectricity signals on the body surface and evaluates and diagnoses the neuromuscular function according to the detected myoelectricity signals; the biofeedback electrical stimulation treatment technology combines the surface myoelectricity biofeedback technology In combination, by judging the detected surface electromyographic signals, the muscles are electrically stimulated according to the preset algorithm to achieve feedback and promote the rehabilitation of neuromuscular functions. Surface electromyography evaluation and diagnosis technology has important practical value in the fields of clinical medicine, ergonomics, rehabilitation...

AI Technical Summary

Problems solved by technology

[0003] As stated in the background technology of the invention patent with the publication number CN103300853A, the existing instruments and equipment have a single function and can only complete the function of myoelectric collection and evaluation or biofeedback electrical stimulation therapy alone, which not only increases the cost of instrument purchase, but also due to diagnosis and The treatment process is relatively independent, and the collected data indicators cannot be effectively combined with the treatment and guide the setting of electrical stimulation parameters; in order to solve this problem, the invention patent of CN103300853A discloses a diagnosis and treatment system based on surface electromyography, including Host computer acquisition module, host computer evaluation module, host computer cycle electrical stimulation output module, host computer biofeedback electrical stimulation output module, communication module, digital processing controller, multi-channel surface electromyography electrodes, multi-channel amplification filter module (including front amplifier), analog-to-digital converter, digital-to-analog converter, multi-channel power amplifier module (including transformer booster circuit) and output current limiting monitoring module; at the same time, it realizes the collection and diagnosis evaluation of surface electromyographic signals, cyclic electrical stimulation, Multiple functions such as biofeedback electrical stimulation; however, this technical solution mainly has the following disadvantages:

[0004] First, the stimulation sequence depends on the digital-to-analog converter to generate, and at the same time, a dedicated multi-channel power amplification module and output current-limiting monitoring module are required to amplify the stimulation signal and monitor the current. The error is large, the volume is large, and the cost is high. , and the output range is small;

[0005] Second, the surface electromyography electrodes are connected to the electrical stimulation output module and the surface electromyography amplification and filtering module at the same time, without isolation, resulting in low input impedance of the surface electromyography amplification and filtering module, performance degradation, and a reduction in the signal-to-noise ratio of the surface electromyography signal. Increased the requirements for pretreatment of the skin in contact with the electrodes to reduce skin impedance, which reduces the signal quality and is inconvenient to use

[0006] The above-mentioned problems have caused great difficulties to the actual promotion and application in clinical practice.

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