Continuous blood pressure measuring device

Abstract

The invention provides a continuous blood pressure measuring device. When the device is used for measuring blood pressure, a method comprises the following steps of: firstly, selecting characteristics for blood pressure equation estimation from a lot of extracted characteristics through characteristic selection, feeding the characteristics into a decision system, and determining an equation for estimating the blood pressure from a blood pressure equation set; then, selecting characteristics for estimating a blood pressure equation coefficient from the characteristics extracted based on the characteristic extraction by utilizing the characteristic selection, and estimating a blood pressure equation coefficient by using methods, such as statistical estimation, numerical value calculation and the like; and finally, selecting characteristics for estimating blood pressure from the characteristics extracted based on the characteristic extraction by utilizing the characteristic selection, and substituting the characteristics in the blood pressure equation to carry out blood pressure estimation. A multi-parameter-based pulse wave velocity method and a method for establishing a blood pressure equation set are utilized. the blood pressure estimation is carried out by utilizing methods, such as artificial intelligence, mode identification and the like, and thus, not only is the measurement precision of the blood pressure estimation further increased, but also the complicated parameter calibrating process is avoided.

Description

Technical field [0001] The present invention relates to a continuous blood pressure measuring device, and more particularly to a method for estimating parameters, systolic, diastolic, and average pressure in a blood pressure measurement equation based on pulse wave velocity method by using multiple parameters of electrocardiographic signals and photoelectric volume wave signals A device for continuous blood pressure estimation. Background technique [0002] Blood pressure refers to the lateral pressure of blood in the blood vessel against the blood vessel wall per unit area, that is, the pressure. It is an important physiological parameter that reflects cardiovascular function, and is an important basis for diagnosing diseases, observing treatment effects, and making prediction judgments. Due to the influence of various factors such as physical state, mood, pressure, exercise and circadian rhythm, blood pressure has obvious fluctuations. Therefore, a single measurement of blood ...

AI Technical Summary

Problems solved by technology

This method is a promising method for continuous blood pressure measurement, but there are two problems with this method: (1) The current continuous blood pressure measurement method based on the pulse wave velocity method requires a cuff and an instrument to correct the blood pressure measurement equation

(2) Human blood pressure is affected by many factors. Continuous blood pressure measurement based on pulse wave velocity method is affected by many factors, including waking or sleeping, activity level, body position, emotion, ambient temperature, sleep apnea, caffeine, alcohol , cardiac output, vasoconstriction, terminal impedance, cardiac load, measurement posture, measurement location, temperature, sensor selection, etc., only using PTT, the blood pressure value measured by the equation is not accurate enough

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