Non-invasive central arterial pressure detector and detection method thereof

Abstract

The invention discloses a non-invasive central arterial pressure detector, which comprises a pulse signal acquisition unit, a pulse signal processing unit, a main processor unit and an input and output unit, wherein the pulse signal acquisition unit is used for transmitting an acquired brachial arterial pressure pulse wave signal to the pulse signal processing unit; the pulse signal processing unit is used for processing the brachial arterial pressure pulse wave signal and then transmitting to the main processor unit; and the main processor unit is used for calculating and analyzing the received pressure pulse wave signal by using a conduction function method and transmitting a central arterial pressure curve, a central arterial pressure value, stroke volume, blood total resistance, an arteriosclerosis index and blood pressure type to the input and output unit to be displayed and output. A detection method comprises the following steps of: acquiring brachial arterial blood pressure through a blood pressure cuff wound on the brachial artery of the upper arm of a patient and patient information; acquiring brachial arterial pressure pulse wave when pressure of the blood pressure cuff is at 60 mmHg; and calculating and outputting central arterial pressure, the stroke volume, the blood total resistance, the arteriosclerosis index and the blood pressure type.

Description

technical field [0001] The invention relates to a medical measuring device, in particular to a central arterial pressure detection analyzer. Background technique [0002] Accurate measurement of blood pressure is the most important basis for the diagnosis, treatment and evaluation of the efficacy of antihypertensive drugs in hypertension. The commonly used measurement method is to determine the brachial artery pressure, and the brachial artery blood pressure is usually taken as the central arterial pressure. However, peripheral blood pressure cannot represent central arterial pressure. Different drugs have different effects on central blood pressure, even if the effect on peripheral blood pressure is the same. At the same level of reduction in brachial artery pressure, antihypertensive drugs that significantly reduce central arterial pressure may bring about better protection of target organs, especially the heart, and thus may further reduce cardiovascular events. Central...

AI Technical Summary

Problems solved by technology

The problems in the method of detecting the blood pressure of the radial artery and treating it as the blood pressure of the brachial artery and calculating the central arterial pressure in the form of a transfer function are: the convenience of pulse wave detection, the wave interference generated from the brachial artery to the radial artery, and the pulse wave Factors such as propagation time uncertainty make the calculated central arterial pressure less relevant

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