Device and method for measuring arterial blood pressures based on pulse wave signals and electrocardiosignals

Abstract

The invention relates to a device and method for measuring arterial blood pressures based on pulse wave signals and electrocardiosignals, wherein the device comprises a microprocessor, a pulse wave signal measuring unit, an electrocardiosignal measuring unit, a communication module, a data storage module and an LCD (liquid crystal display) module, and the microprocessor is respectively connected with the pulse wave signal measuring unit, the electrocardiosignal measuring unit, the communication module, the data storage module and the LCD module by control lines. The device provided by the invention is small in size, therefore, the device is suitable to be worn for non-intrusively and continuously detecting and recording the blood pressure values for a long time. Compared with the existingblood pressure measurement techniques, the device and method provided by the invention have the advantages that in the process of blood pressure measurement, the dependence on an inflated cuff is ridded; and meanwhile, the blood pressure calculation method applied to the device is small in computation load, and can be implemented by the microprocessor with a limited computational capability, therefore, the device is low in cost and easy to use.

Description

technical field [0001] The invention relates to a cuffless, non-invasive blood pressure measuring device and method, in particular to a device and method for calculating blood pressure relying on pulse wave signals and electrocardiographic signals. Background technique [0002] Cardiovascular disease is currently the primary health threat facing human beings. Blood pressure can reflect the functional status of the human heart and blood vessels, and is an important basis for clinical diagnosis of diseases, observation of treatment effects, and prognosis. Human blood pressure refers to the lateral pressure generated by blood flowing through blood vessels on the wall of the vessel when the heart contracts, which is the result of the joint action of ventricular ejection and peripheral resistance. Blood pressure is divided into arterial pressure and venous pressure. Generally speaking, blood pressure refers to arterial pressure, which is closely related to heart function and peri...

AI Technical Summary

Problems solved by technology

In the process of blood pressure calculation, this method needs to compensate the influence of factors such as cardiac output, the contact pressure between the measured part and the sensor, and the vagus nerve on the blood pressure calculation. higher

[0009] Therefore, in various non-invasive blood pressure measurement methods, there are many methods using inflatable cuffs, which cannot realize continuous blood pressure measurement, and the stimulation brought by the cuff and inflation pressure to the testee will also affect the blood pressure measurement results.

The method of calculating blood pressure through pulse wave signal contains cumbersome correction steps and calculation steps, which requires high computing power of hardware equipment, especially the lack of simple calculation steps of arterial diastolic blood pressure calculation method

Images