Portable active electroencephalogram monitor and control method thereof

Abstract

The invention relates to a portable active electroencephalogram monitor and a control method thereof, belonging to the field of medical apparatus and instruments. The electroencephalogram monitor comprises an electroencephalogram signal acquisition unit, an electroencephalogram signal analysis and storage unit and an upper computer, wherein an input and output end of the electroencephalogram signal acquisition unit is connected with a first input and output end of the electroencephalogram signal analysis and storage unit, and a first digital signal input and output end of the electroencephalogram signal analysis and storage unit is connected with an input and output end of the upper computer. The portable active electroencephalogram monitor has high stability and reliability and can be used for realizing the active long-term monitoring of accidental, transient, paroxysmal or characteristic electroencephalogram activities, and the normal life, study and work of patients can not be influenced. Because long-time electroencephalogram data can be continuously recorded, the electroencephalogram monitor has important clinic value in diagnosing epilepsia and cerebrovascular diseases and studying and analyzing sleep.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a portable dynamic electroencephalogram monitor and a control method thereof. Background technique [0002] Obtain human consciousness by collecting physiological signals of the human brain Figure 1 The EEG has always been a human dream, especially since Hans Berger first recorded the EEG in 1929, and it has been speculated that it might be used for communication and control, freeing the brain from the usual mediation of peripheral nerves and limbs. Help and act directly on the outside world. In addition, in the field of rehabilitation of the disabled and disease diagnosis, EEG research has more practical significance. [0003] Since the 1980s, humans have made epoch-making progress in the diagnosis of brain diseases. The advent of digital imaging equipment such as CT and MRI has greatly simplified the diagnosis process, improved the accuracy of diagnosis, and can ...

AI Technical Summary

Problems solved by technology

[0005] The former type of EEG has low stability and reliability, and can only perform static short-term monitoring. However, we know that abnormal brain wave activities do not necessarily appear continuously, and some of them change instantaneously.

Therefore, some sporadic, short-lived, paroxysmal or characteristic EEG activities may not be detected during the short-term monitoring

And data storage and query are very difficult

The latter type of EEG generally transmits the collected EEG signals to the host computer through the serial cable or wireless serial port or USB interface after A / D conversion, and uses the host computer to perform auxiliary analysis, processing, display and storage. Compared with the previous one, it is more convenient to save and query, but this kind can only be checked in a specific hospital, and must be transmitted to the host computer in real time, which will affect the normal life and study of the patient, which will greatly increase the time for checking

Summarizing the existing EEG signal acquisition system, it can be found that there are the following shortcomings: the EEG signal acquisition system is large in size and power consumption, not easy to carry, inflexible in use, poor in artifact elimination ability, and poor in filtering performance. The high-frequency attenuation of the filter is too slow, the selectivity of the brain wave signal is not good, the anti-interference ability is poor, and the output results are unstable with the change of the individual and the environment. There is still a big gap.

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