Ambulatory blood pressure non-contact monitoring device based on camera

Abstract

The invention discloses an ambulatory blood pressure non-contact monitoring device based on a camera. The device comprises a data acquisition unit, a model training unit and a real-time blood pressure output unit. The data acquisition unit comprises an image acquisition module and a blood pressure acquisition module; the model training unit comprises a skin area location tracking module, an extraction module and a function relation fitting module. The real-time blood pressure output unit acquires skin videos, carrying two or more distance marks, of a user in real time through the image acquisition module, the phase difference and the heart rate which are acquired by the extraction module in real time are input into a trained model, and real-time ambulatory blood pressure is acquired. With the adoption of the blood pressure acquisition means, the ambulatory blood pressure of a target can be acquired under the non-contact condition, and human body discomfort caused by long-term monitoring or night monitoring is avoided. The target tracking technology and the blood pressure acquisition means are combined, the real-time blood pressure of ambulatory human bodies can be acquired continuously.

Description

technical field [0001] The invention relates to the field of biomedical detection, in particular to a non-contact blood pressure monitoring device based on a camera. Background technique [0002] Ambulatory blood pressure (ABP) can be used for the identification and diagnosis of hypertension and the assessment of the risk of cardiovascular and cerebrovascular complications, and is an indispensable detection index for the management of hypertension. Clinic blood pressure can only provide the blood pressure at the current moment, and the obtained blood pressure will be affected by the current environment, making the blood pressure value abnormal, leading to the appearance of white coat hypertension and false hypertension. Studies have shown that ambulatory blood pressure is a better predictor of cardiovascular morbidity and mortality than clinic blood pressure. Ambulatory blood pressure is more sensitive and accurate in grading the risk of cardiovascular disease, and has a cl...

AI Technical Summary

Problems solved by technology

In terms of application, the method of acquiring ambulatory blood pressure with an ambulatory blood pressure monitor will cause discomfort and resistance to patients in the case of repeated measurement or night sleep, causing patients to refuse to wear it; the cost of ambulatory blood pressure monitors is relatively high, and it is not suitable universal use

In terms of function, the ambulatory blood pressure monitor is not ideal for obtaining the blood pressure of the dynamic human body. Compared with the patient in the dynamic state, it is more suitable for blood pressure monitoring when the patient is in a static state; when using the ambulatory blood pressure monitor, if the blood pressure monitoring steps Not standardized, data reproducibility is not high

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