Intelligent electrical stimulation circuit device

Abstract

The invention discloses an intelligent electrical stimulation circuit device. A myoelectric and a signal processor synchronously collect and process real-time myoelectric signals of human bodies, signals are output to a microcontroller through a band-pass filter, the microcontroller outputs frequency-modulated signals to control the connection and the disconnection of a main switch and outputs amplitude-modulated signals which are transmitted to a comparison amplifier through the main switch, the comparison amplifier compares amplitude-modulated signals and signals of a feedback circuit, amplified output signals are used for controlling the connection and the disconnection of an auxiliary switch, part of signals passing through the auxiliary switch enters the feedback circuit and then are input to the comparison amplifier, and part of signals input to the comparison amplifier are used for controlling the intensity of stimulating current produced by a stimulating current generator. By the aid of the intelligent electrical stimulation circuit device, myoelectric signals of human bodies are collected in real time, the stimulating current which changes with the amplitude of myoelectric signals is output in real time, and the frequency of the stimulating current can be adjusted in real time according to demands of treatment, and the intensity and the frequency of the stimulating current can be changed in an adaptive mode according to changes of patient wishes, so that patients can finish actions that patients want to finish, and the device conforms to the modern active rehabilitation concept.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an intelligent electric stimulation circuit device. Background technique [0002] According to the statistics of the World Health Organization, at present, stroke has become the second leading cause of death of the world population, second only to ischemic heart disease. 1 out of every 6 people in the world may suffer from stroke, 1 person dies from stroke every 6 seconds, and 1 person is permanently disabled due to stroke every 6 seconds. Stroke patients often suffer from diastolic muscle weakness or involuntary muscle contractions due to flexor spasms. As early as 1971, Liberson used electrical stimulation to help patients with foot drop to walk. The electrical stimulation method is to stimulate the patient's muscle tissue through a small current to help restore the movement of human limbs or hands. It belongs to physical therapy. The typical application is low fre...

AI Technical Summary

Problems solved by technology

The technology disclosed in the Chinese invention patent "Biofeedback System and Display Equipment" (authorized announcement number CN101460088B) mobilizes the patient's awareness of active treatment, but the magnitude of the current stimulation given by the device must be preset before treatment, and cannot be based on the patient's treatment during treatment. Active treatment will be carried out, that is, as long as the patient's active exercise intensity reaches the set threshold, the device will give a set fixed intensity stimulation current; if the exercise intensity does not reach the set threshold, the device will not give stimulation current, that is, the set threshold electric current Stimulate

This patent solves the problem of passive treatment of patients, but brings another new problem: that is, once electrical stimulation starts, it can no longer reflect the patient's subjective wishes

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