Rhythmicity physiological signal optimization method and device

A technology of physiological signals and processing methods, which is applied in the fields of electrical digital data processing, special data processing applications, medical science, etc., and can solve problems such as not being able to receive expected effects

Active Publication Date: 2010-03-31
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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  • Application Information

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Problems solved by technology

However, the actual effect of the technology and method based on the exercise-physiological model often depends on whether the mod

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  • Rhythmicity physiological signal optimization method and device
  • Rhythmicity physiological signal optimization method and device
  • Rhythmicity physiological signal optimization method and device

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Embodiment Construction

[0027] The features and advantages of the present application will be described in detail through embodiments with reference to the accompanying drawings.

[0028] The present invention uses the inherent physiological characteristics of physiological signals (such as pulse waves) to propose a local energy enhancement technology to enhance useful signals while suppressing noise signals, thereby improving the accuracy and stability of rhythmic physiological signal calculations, simple and effective, and easy to implement , which mainly includes the following:

[0029] 1) Preprocessing the collected physiological signal, the purpose is to remove the DC signal and remove the high-frequency noise outside the passband;

[0030] 2) Apply local energy enhancement technology to the preprocessed waveform (that is, the AC part of the physiological signal) to determine the peak position, and further obtain the parameter value of the rhythmic physiological signal. The steps mainly include:...

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Abstract

The invention discloses a rhythmicity physiological signal optimization method and device. The method includes the following steps: local energy enhancement is carried out on alternating current partof rhythmicity physiological signal, and peak location is confirmed. The invention enhances characteristics of systole by local energy enhancement technology and inhibits noise, thus improving accuracy of measurement.

Description

【Technical field】 [0001] The invention relates to rhythm measurement of rhythmic physiological signals, in particular to an optimal processing method and device for rhythmic physiological signals. 【Background technique】 [0002] There are many physiological rhythmic changes in the human body during life activities, and such rhythmic physiological signals are usually periodic or quasi-periodic. Taking pulse rate as an example, as one of the simplest and most important physiological parameters, pulse rate can quickly and intuitively represent the rhythmic exercise rhythm of the cardiovascular system, which is of great significance for clinical observation and diagnosis. Different types of pulse sensors, such as piezoelectric sensors and photoelectric sensors, are widely used in clinical and healthcare fields. At present, pulse oximeters widely used in operating rooms and ICUs use photoelectric tracing signals (PPG) obtained by photoelectric sensors to simultaneously measure b...

Claims

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Application Information

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IPC IPC(8): A61B5/00G06F19/00
Inventor 颜永生李旭
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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