Non-invasive blood pressure continuous detection device and method

Abstract

The invention belongs to the technical field of non-invasive blood pressure detection and particularly relates to a non-invasive blood pressure continuous detection device and a non-invasive blood pressure continuous detection method. The non-invasive blood pressure continuous detection device comprises a volume pulse wave image detection module, an electrocardiogram detection module and a signal analysis processing module; the volume pulse wave image detection module is used for acquiring a direct current component and an alternate current component in a blood volume pulse wave; the electrocardiogram detection module is used for acquiring an electrocardiosignal of a human body; and the signal analysis processing module is used for acquiring PWV (Pulse Wave Velocity) information according to the electrocardiosignal acquired by the electrocardiogram detection module and the alternate current component detected by the volume pulse wave image detection module, acquiring blood vessel radius information according to the alternate current component and the direct current component and acquiring continuous blood pressure information according to the PWV information and the blood vessel radius information. Due to implementation of the non-invasive blood pressure continuous detection device and the non-invasive blood pressure continuous detection method which are disclosed by the invention, influence of variation of the blood vessel radius on the blood pressure in the long-term non-invasive blood pressure measurement process is removed, accuracy of long-term detection is improved, and times of continuously calibrating the blood pressure are reduced.

Description

technical field [0001] The invention belongs to the technical field of noninvasive blood pressure detection, and in particular relates to a noninvasive blood pressure continuous detection device and method. Background technique [0002] The non-invasive continuous blood pressure measurement method can continuously measure the beat-to-beat blood pressure value and monitor the blood pressure waveform changes for a long time, providing a richer basis for disease diagnosis and treatment. Therefore, it is unparalleled in clinical monitoring and continuous monitoring of blood pressure changes. The advantages of this method will become the development trend of blood pressure measurement methods in the future. At present, the relatively mature non-invasive continuous blood pressure measurement methods are arterial tension method and volume compensation method, and most of the commercialized non-invasive continuous blood pressure measurement instruments are designed using these two m...

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Problems solved by technology

[0005] The present invention provides a non-invasive blood pressure continuous detection device and method, aiming to solve the problem that the existing pulse wave velocity measurement method ignores the factor of blood vessel radius change, resulting in the need for multiple calibrations or large errors after a small amount of calibration for long-term measurement question

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