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Continuous blood pressure measurement method with fusion of multiple physiological signal features and without cuff

A feature fusion and physiological signal technology, applied in vascular assessment, cardiac catheterization, etc., can solve problems affecting measurement accuracy, patients' physiological discomfort, intermittent blood pressure observation, etc., to avoid the calibration process, facilitate wearable devices, and have good applicability and the effect of precision

Inactive Publication Date: 2019-03-26
SOUTHEAST UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the time interval required for cuff inflation and deflation, this measurement method will inevitably cause intermittent blood pressure observation.
And squeezing the blood vessel for a long time will cause the patient's physiological discomfort and affect the measurement accuracy

Method used

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  • Continuous blood pressure measurement method with fusion of multiple physiological signal features and without cuff
  • Continuous blood pressure measurement method with fusion of multiple physiological signal features and without cuff
  • Continuous blood pressure measurement method with fusion of multiple physiological signal features and without cuff

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Embodiment Construction

[0036] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0037] Such as figure 1 Shown: A cuffless continuous blood pressure measurement method with multi-physiological signal feature fusion, including the following steps:

[0038] Step 1: For different measured objects, such as Figure 4 The blood pressure, photoplethysmographic pulse signal (PPG) and electrocardiographic signal (ECG) of the subject were respectively measured 10 minutes after sitting still and exercising. Such as image 3 Calculate the pulse wave transit time PTT between heartbeat i...

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Abstract

The invention discloses a continuous blood pressure measurement method with fusion of multiple physiological signal features and without a cuff. The method includes the steps that 1, through a Moens-Korteweg pulse wave conduction model and an artery pressure baroreceptor reflex (ABR), a correlation model of feature vectors of arterial blood pressure, a human body photoplethysmography (PPG) signaland an electrocardiogram (ECG) signal is deduced; 2, according to the mode, a comparison and calibration experiment with a traditional cuff type hematomanometer is used for determining individual differentiation parameters in the model; 3, the calibration model can be used for obtaining an estimated value of arterial blood pressure by measuring PPG and ECG. In this way, continuous blood pressure values of patients can be obtained without the traditional cuff type hematomanometer.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a cuffless continuous blood pressure measurement method with multi-physiological signal feature fusion. Background technique [0002] Continuous blood pressure measurement is of great significance to human health monitoring and clinical diagnosis and treatment of cardiovascular diseases, and it provides a long-term dynamic evaluation index of human cardiovascular system. Traditional blood pressure measurement methods such as Korotkoff sound auscultation and oscillometric methods use an inflated and deflated cuff to squeeze blood vessels, and measure blood pressure by measuring the balance between cuff pressure and arterial blood pressure. However, due to the time interval required for the inflation and deflation of the cuff, this measurement method will inevitably cause intermittent blood pressure observation. And squeezing the blood vessel for a long time wi...

Claims

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Application Information

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IPC IPC(8): A61B5/021
CPCA61B5/02108
Inventor 王东徐扬张为公
Owner SOUTHEAST UNIV
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