Brain monitoring system of blood and oxygen lacking based on heart rate variability signals

Abstract

The cerebral ischemia and anoxia monitoring system based on heart rate variance signal as one kind of medical equipment includes a signal extracting module, a cardioelectric signal treating module, and an outer communication and memory module. The signal extracting module receives cardioelectric signals from three body surface electrodes, amplifies the signals, performs isolating and analog filtering treatment and feeds the treated cardioelectric signals to the cardioelectric signal treating module; the cardioelectric signal treating module completes A/D conversion, digital filtering, heart rate variance signal extraction, non-linear parameter calculation and threshold judgment before transmitting the treated signal to the outer communication and memory module; and the outer communication and memory module completes the display, storing and communication on the signal. The present invention has low cost and other features.

Description

technical field [0001] The invention relates to a system in the technical field of medical devices, in particular to a cerebral ischemia and hypoxia monitoring system based on heart rate variation signals. Background technique [0002] According to the statistics of the World Health Organization (WHO), the number of patients with encephalopathy has risen sharply, ranking among the first few of various diseases. In my country, 1.2 to 1.5 million people are newly diagnosed with complete cerebral apoplexy every year, 800,000 to 1,000,000 people die, about 75% of the survivors become disabled, and the recurrence rate within 5 years is as high as 41%. Brain damage caused by cardiac arrest, suffocation, etc. is called ischemic encephalopathy (ischemic encephalopathy). 5 minutes of ischemia and hypoxia can cause the death of neurons. Although there are a series of compensatory adjustment mechanisms in the body (such as the existence of the arterial ring at the base of the brain, ...

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Problems solved by technology

However, this invention ignores the high-speed processing function of the microprocessor, does not use the high-speed processing function of the microprocessor to analyze the ECG signal, and does not propose

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