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Physiological parameter monitoring system signal amplifier

A signal amplifier and monitoring system technology, which is applied in the fields of sensors, medical science, diagnostic recording/measurement, etc., can solve the problem of unsuitable signal amplifiers, and achieve the effects of suppressing external interference, high efficiency, and simple structure

Inactive Publication Date: 2016-08-24
宁波高新区利威科技有限公司
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Problems solved by technology

[0007] The technical problem to be solved: the present invention is to solve the problem that the signal amplifier of the physiological parameter monitoring system is not suitable for the electrode of the textile structure, and provides a signal amplifier of the physiological parameter monitoring system suitable for the electrode of the textile structure, which can ensure that the electrode of the textile structure The transmitted ECG signal is effectively amplified, and at the same time, it can well suppress external interference and eliminate zero drift and noise caused by human activities

Method used

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  • Physiological parameter monitoring system signal amplifier
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Embodiment Construction

[0012] A signal amplifier of a physiological parameter monitoring system: it is mainly composed of a 5-fold first-stage amplifying circuit, the main frequency is a 0.05HZ high-pass filter circuit, a 50HZ notch circuit, a 100HZ low-pass filter circuit, a 100HZ notch circuit, a secondary amplifier circuit and an addition circuit Corrected circuit composition. The 5-fold first-stage amplifying circuit is connected to the ECG signal, which is extracted through the textile structure electrodes. After the 5-fold first-stage amplifying circuit is cascaded, the main frequency is a 0.05HZ high-pass filter circuit, and the high-pass filter is composed of It consists of a filter resistor and a capacitor. The filter resistor is greater than 6MΩ and the capacitor is less than 0.5μF. The main frequency is 0.05HZ high-pass filter circuit followed by a 50HZ trap circuit, followed by a 100HZ low-pass filter circuit after the 50HZ trap circuit. , the resistance of the low-pass filter circuit is...

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Abstract

The invention relates to a physiological parameter monitoring system signal amplifier, in particular to an electrocardiosignal amplifier suitable for an electrode with a spinning structure, and belongs to the technical field of medical devices and signal processing. The physiological parameter monitoring system signal amplifier mainly comprises a five-fold first-stage amplification circuit, a high-pass filter circuit with the main frequency of 0.05HZ, a 50HZ trap circuit, a 100HZ low-pass filter circuit, a 100HZ trap circuit, a secondary amplification circuit and an addition modification circuit. The physiological parameter monitoring system signal amplifier can ensure that electrocardiosignals transmitted by the electrodes are effectively amplified, and meanwhile, external interference can be greatly inhibited; null drift and noise caused by movement of a human body are eliminated.

Description

technical field [0001] The invention relates to a signal amplifying circuit of a physiological parameter monitoring system, in particular to an electrocardiographic signal amplifier used for textile structure electrodes, belonging to the technical field of medical equipment and signal processing. Background technique [0002] The morbidity and mortality of cardiovascular disease in the Chinese population are on the rise. It is estimated that there are 230 million people with cardiovascular disease in China, including 200 million people with hypertension, 2 million people with myocardial infarction, and 4.2 million people with heart failure. Nearly 3 million people die from cardiovascular diseases every year in my country, accounting for one third of the total number of deaths from diseases in China. Half of people who die from cardiovascular disease have high blood pressure. [0003] The human circulatory system consists of the heart and blood vessels, and its main functio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0402
Inventor 叶宏武李鹏
Owner 宁波高新区利威科技有限公司
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