High-precision bio-electrical impedance measuring system and method for body composition analysis

Abstract

The invention relates to a high-precision bio-electrical impedance measuring system and measuring method for body composition analysis. The system comprises an upper computer, an electrode assembly, a micro controller, a signal generating module, a signal conditioning module and a signal processing module, wherein the micro controller is connected to the upper computer, the signal generating module, the signal conditioning module and the signal processing module; the signal generating module,the signal conditioning module and the signal processing module are sequentially connected; the signal conditioning module and the electrode assembly are connected; the electrode assembly is arranged on the surface of a to-be-detected object; the micro controller is used for transmitting a measuring command and generating an excitation signal; on one aspect, the excitation signal flows to a sampling circuit, so that an excitation current sample signal is obtained, and on the other aspect, the excitation signal is transmitted to the to-be-detected object by virtue of the signal conditioning module and a response voltage signal is returned; and the response voltage signal and the excitation signal flow to the micro controller by virtue of the signal processing module and are processed by the upper computer. Compared with the prior art, the measuring system and the measuring method disclosed by the invention have the advantages of being high in safety, good in high-frequency performance, high in data acquisition speed, high in accuracy and the like.

Description

technical field [0001] The invention relates to the technical field of bioelectrical impedance measurement, in particular to a high-precision bioelectrical impedance measurement system for body composition analysis. Background technique [0002] With the progress and development of human life, people have higher and higher requirements for medical treatment, not only to cure diseases faster and better, but also to minimize their own pain during the treatment process. Therefore, this puts forward higher requirements for medical instruments, prompting their continuous development and innovation. Because biological tissue electrical impedance technology can perform cell measurement, volume measurement, human tissue structure analysis, body composition analysis, etc., it has the characteristics of non-invasive, cheap, safe, non-toxic and harmless, easy to operate and rich in information, so that the present invention can be used in pathological detection It is operable in healt...

AI Technical Summary

Problems solved by technology

[0005] However, there are still many deficiencies in the current bioelectrical impedance measurement technology, mainly in that most systems use single-frequency signals for excitation, and the obtained bioelectrical impedance information is not rich enough. Low, inaccurate phase measurement

At the same time, the existing bioelectrical impedance measurement system mostly uses four hands and feet electrodes for measurement, and the information measurement accuracy of the abdomen and trunk is low

Most of the currently existing inventions related to bioimpedance measurement are aimed at making it more convenient for the examinee to use, but there are few improvements in the aspect of insufficient measurement accuracy. Therefore, the invention of a high-precision bioelectrical impedance measurement system based on the electrical impedance method has great practical significance and practical value

Images