An embedded device for realizing blood pressure measurement

Abstract

The invention provides a blood pressure measurement method. The method comprises the steps that first measuring light and second measuring light are sent to the body surface skin of a measured object; first reflecting light formed after the first measuring light is reflected is received, and second reflecting light formed after the second measuring light is reflected is received; the first reflecting light is processed to obtain a first pulse waveform, and the first pulse waveform is processed to obtain a first blood pressure parameter; the second reflecting light is processed to obtain a second pulse waveform, and the second pulse waveform is processed to obtain a second blood pressure parameter; the first blood pressure parameter or the second blood pressure parameter is recognized as the optimal blood pressure parameter of the measured object according to a preset judgment rule. The invention further provides an embedded device capable of achieving the method. The defect that inaccurate measurement is possibly caused due to the fact that the measuring light with only one wave length is adopted can be effectively overcome, and therefore blood pressure measuring accuracy in the whole measurement process is guaranteed.

Description

technical field [0001] The invention relates to the field of medical measuring instruments, in particular to an embedded device for realizing blood pressure measurement. Background technique [0002] Human physiological parameters are a series of indicators to measure the physiological state of the human body in medicine, including pulse parameters, blood pressure parameters, blood oxygen parameters, blood sugar parameters, etc. Physiological parameters reflect the physical condition of the human body macroscopically, and are very important for disease prediction and body maintenance. early warning and guidance. Among them, for the measurement of blood pressure parameters, the light reflection method is mainly used at present. The specific principle is to use a light transmitter to send a light wave of a wavelength to the human tissue of the measured object, and the light wave generates reflected light after being reflected by the human tissue. The light receiver receives t...

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Problems solved by technology

[0003] In the process of using the above-mentioned light reflection method to obtain the pulse waveform of the measured object and obtain the blood pressure parameters of the measured object according to the pulse waveform, since the motion state of the measured object is constantly changing and different factors will appear during the measurement process Therefore, if only one wavelength of light wave is used to obtain the pulse waveform of the measured object during the entire blood pressure measurement process, it is impossible to guarantee that the pulse waveform obtained through the measurement of this light wave is accurate, and thus cannot be guaranteed to pass The blood pressure parameters of the measured object obtained by the light wave are all accurate

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