Research of dynamic blood pressure detection and calibration method of radial artery

A technology of ambulatory blood pressure and calibration method, which is applied in diagnostic recording/measurement, medical science, sensors, etc. It can solve problems such as errors, time intervals affecting measurement PTT, blood pressure value errors, etc., to achieve small measurement errors, suitable for long-term wear, small effect

CN104257371AInactive Publication Date: 2015-01-07TIANJIN POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-01-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a dynamic blood pressure detection and calibration method of a radial artery. The method comprises the following steps: measuring a blood pressure value BP1 to perform first calibration by using oscillography; measuring a blood pressure value BP2 to perform second calibration by using correlation of an electrocardiosignal, a pulse wave signal and human arterial pressure; finally performing continuous monitoring of blood pressure by using the linear relation between pulse wave transmission time difference PWT of two different parts on a wrist and the human arterial blood pressure which are measured at the same time.
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Description

technical field

[0001] The present invention generally relates to the research of a radial artery dynamic blood pressure detection and calibration method, and in particular to a device for continuous monitoring of blood pressure by using the linear relationship between the pulse wave transit time difference PWT and the human arterial blood pressure after two calibrations. method. Background technique

[0002] Today, hypertension has become the most common chronic disease of the cardiovascular system and one of the global public health problems. Existing families and hospitals commonly used blood pressure measuring devices are mainly based on the Korotkoff sound method and the oscillometric method. Although it can accurately measure the blood pressure value, it needs to use a cuff during the measurement process. There is a process of inflation and deflation of the cuff, so it can only measure the blood pressure value at a certain moment, and because of the "white coat" pheno...

Examples

Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

[0017] Such as Figure 1A It is a top view of the radial artery ambulatory blood pressure detection and calibration device. The device is worn on the left wrist, the display screen is attached to the inner side of the wrist, and the switch is pressed. The microcontroller controls the pump and valve to inflate and deflate the cuff, thus obtaining the first calibration. Blood pressure, and store it in the data storage module.

[0018] Such as Figure 1B Shown is the side view of the radial artery ambulatory blood pressure detection and calibration device. After the first calibrated blood pressure is obtained, the microcontroller controls the pump and valve to deflate the cuff until the pressure sensor is in full contact with the human skin, and then 3×2 points...