Portable collection device for high precision myoelectric signal

A high-precision EMG signal acquisition technology, applied in medical science, diagnosis, diagnostic recording/measurement, etc., can solve the problems of large signal loss, low input impedance, poor portability, etc., and achieve high common-mode rejection ratio and high input Impedance, the effect of portability

Inactive Publication Date: 2017-01-11
WUHAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Most of the existing electromyographic signal acquisition devices transmit electromyographic signals by wire, and the portability is poor; the input impedance is low, the signal loss is large, t

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  • Portable collection device for high precision myoelectric signal
  • Portable collection device for high precision myoelectric signal
  • Portable collection device for high precision myoelectric signal

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Embodiment Construction

[0024] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with accompanying drawings.

[0025] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] please see figure 1 , a portable high-precision electromyographic signal acquisition device described in a preferred embodiment of the present invention includes an electromyographic signal acquisition module 1 , a DSP 2 , a Bluetooth 3 and a power supply 4 . The myoelectric signal acquisition module 1 is sequentially connected with ...

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Abstract

The invention provides a portable collection device for a high precision myoelectric signal. The device comprises a power supply as well as a myoelectric signal collection module, a DSP and a Bluetooth connected in sequence. The myoelectric signal collection module comprises a surface electrode, a difference amplifier, a band-pass filter, a main amplifier, an electrical level lifting circuit, a high precision A/D and a buffer circuit. The DSP achieves digital processing as band-pass filtering for the signal, improved self-adaptive FIR notch filter for power-line interference, wavelet threshold denoising and the like as well as control for the whole device using a digital processing method. The Bluetooth sends the signal to a terminal using a digital processing method. The power supply supplies electricity for the whole device. The device combines an analog circuit and the digital processing technology, which enables very high input impedance and common mode rejection ratio, can effectively restrain noise, enables very high precision of the collected signal, has the advantages of low power consumption, is convenient to carry, and can be well applied to the fields of scientific research, wearable device, and the like.

Description

technical field [0001] The invention belongs to the field of human body bioelectric signal detection, in particular to a portable high-precision electromyographic signal acquisition device. Background technique [0002] Bioelectrical signals refer to regular electrical signals that are closely related to the state of life and are generated by living cells or tissues. Bioelectrical signals have been a hot area of ​​scientific research since their discovery. The greatest significance lies in the fact that bioelectrical signals, as important indicators of various physiological parameters of the human body, can realize the functions of various parts of the human body and the overall health through monitoring and analysis. The overall situation is more accurately controlled. [0003] As one of the important bioelectric signals of the human body, EMG is an extension of nervous system examination in the medical field and is widely used in neurology, rehabilitation, orthopedics, ...

Claims

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Application Information

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IPC IPC(8): A61B5/0488A61B5/0492A61B5/296
CPCA61B5/6801A61B5/7203A61B5/7225A61B5/725A61B2560/0431A61B5/296A61B5/389
Inventor 曹昂谢佳芯张珅嘉李晓鹏刘睿
Owner WUHAN UNIV
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