A front-end analog circuit and front-end analog chip for neuroelectrophysiological detection

A front-end simulation and physiological detection technology, applied in the field of neurophysiological detection, can solve problems such as high noise and complex structure, and achieve the effect of solving high noise and realizing common mode noise

Active Publication Date: 2022-05-17
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Description
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  • Application Information

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Problems solved by technology

[0004] The purpose of this application is to provide a front-end analog circuit and front-end analog chip for nerve electrophysiological detection, aiming to solve the problems of high noise and complex structure in the existing nerve electrical signal detection circuit

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  • A front-end analog circuit and front-end analog chip for neuroelectrophysiological detection
  • A front-end analog circuit and front-end analog chip for neuroelectrophysiological detection
  • A front-end analog circuit and front-end analog chip for neuroelectrophysiological detection

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[0038] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0039] In the description of the present application, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

[0040]An embodiment of the present application provides a front-end analog circuit, the front-end analog circuit is connected to a plurality of detection electrodes...

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Abstract

This application belongs to the technical field of neuro-electrophysiological detection, and provides a front-end analog circuit and a front-end analog chip for neuro-electrophysiological detection. The signal input by the detection electrode is amplified and processed through multiple signal detection channels, and multiple channels are realized. The signal is detected synchronously, and the lead shielding line driving signal and the right leg driving signal are generated based on the common mode signals in multiple signal detection channels through the right leg driving module, so as to realize the suppression of common mode noise and solve the existing neurological problems. The electrical signal detection circuit has problems such as high noise and complex structure.

Description

technical field [0001] The application belongs to the technical field of neuroelectrophysiological detection, and in particular relates to a front-end analog circuit and a front-end analog chip for neuroelectrophysiological detection. Background technique [0002] Electroencephalogram (EEG) signals and electromyography signals (EMG) are relatively common human neurophysiological signals. For example, EEG signals are mainly used to identify the state of consciousness of the human brain, and electromyography signals (EMG) are many The superposition of motor unit action potential (MUAP) in muscle fiber in time and space, surface electromyography (SEMG) is the combined effect of superficial muscle EMG and electrical activity of nerve trunk on the skin surface, which can reflect neuromuscular activity to a certain extent activity. Therefore, neural electrophysiological signals have important practical value in clinical medicine, ergonomics, rehabilitation medicine, and sports sc...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/305A61B5/31A61B5/311A61B5/313A61B5/369A61B5/388A61B5/389H03F3/21H03G3/00
CPCA61B5/7225A61B5/7203H03F3/21H03G3/00A61B5/24A61B5/30A61B5/291A61B5/296
Inventor 安奇王怡珊李烨
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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