Oscillography-based blood pressure measuring method and device

An oscillometric method and blood pressure technology, applied in the direction of cardiac catheterization, etc., can solve problems such as difficulty in obtaining measurement results and subjective errors, and achieve scientific blood pressure measurement methods, accurate and objective results

Inactive Publication Date: 2016-01-27
明仲 +1
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Problems solved by technology

However, affected by a series of factors such as the doctor's mood, hearing and environmental noise, it is easy to introduce subjective errors and it is difficult to obtain accurate measurement results

Method used

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  • Oscillography-based blood pressure measuring method and device
  • Oscillography-based blood pressure measuring method and device
  • Oscillography-based blood pressure measuring method and device

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Embodiment Construction

[0021] The present invention provides a method for measuring blood pressure based on the oscillometric method. The method includes: sampling the pulse wave peak in the pulse wave oscillation curve output by the pressure sensor, and the pulse wave oscillation curve is the pressure transmitted from the air cuff to the The pressure sensor is obtained after being processed by the pressure sensor; a group of peak values ​​obtained by the sampling (x i ,y i ) as a given data set, the pulse wave amplitude envelope is fitted by a polynomial fitting method, and the x i represents the sampling instant, the y i Indicates that the pulse wave oscillation curve at the sampling time x i The pulse wave amplitude at , the subscript i takes any number in the integer set {0, 1, 2, ..., m}; according to the maximum amplitude method and the pulse wave amplitude envelope, the systolic blood pressure and diastolic pressure. The embodiment of the present invention also provides a corresponding de...

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Abstract

The present invention discloses an oscillography-based blood pressure measuring method and device, and aims to acquire accurate blood pressure measuring results. The method comprises sampling pulse wave crests in a pulse wave oscillating curve output by a pressure sensor, the pulse wave oscillating curve being obtained after air cuff pressure is transmitted and processed by the pressure sensor; using a group of sampled crest (xi, yi) as a given data set and fitting a pulse wave amplitude envelope line through a polynomial fitting method; and calculating to obtain a systolic pressure and a diastolic pressure according to a maximum amplitude method and the pulse wave amplitude envelope line. The conventional blood pressure measuring methods are easily influenced by subjective factors and objective environments, but the blood pressure measuring method provided by the present invention is more scientific and is not easily influenced by subjective factors or objective environments, and the obtained measuring results are accurate and objective.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a method and device for measuring blood pressure based on an oscillometric method. Background technique [0002] Systemic arterial blood pressure referred to as blood pressure. Blood pressure is the pressure on the walls of blood vessels when blood flows in the blood vessels, and it is the driving force for blood to flow in the blood vessels. When the ventricles contract, blood flows from the ventricles into the arteries. At this time, the pressure of the blood on the arteries is the highest, which is called systolic pressure. Ventricular relaxation, arterial blood vessels elastically retract, blood still slowly continues to flow forward, but blood pressure drops, and the pressure at this time is called diastolic pressure. [0003] With the continuous improvement of the manufacturing level of modern medical devices, there are more and more methods for measuring blood pressure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0225
Inventor 明仲李坚强
Owner 明仲
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