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Method and device for randomly detecting or dynamically monitoring central arterial pressure and cardiac function

A central arterial pressure and dynamic monitoring technology, applied in blood pressure measurement devices, medical science, diagnosis, etc., can solve the problems of high price, inconvenient portability, and large volume

Active Publication Date: 2019-08-02
肯尼斯粲何 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These devices are bulky, expensive, inconvenient to carry, and can only be used for inpatients

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  • Method and device for randomly detecting or dynamically monitoring central arterial pressure and cardiac function

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Embodiment Construction

[0031] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0032] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0033] The probe emits ultrasound to the chest wall. Due to the vibration of the chest wall surface due to the heartbeat, the frequency of the ultrasound reflected from the chest wall surface is inconsistent with the original transmission frequency. The difference between the two forms a Doppler frequency shift signal. The greater the vibration velocity of the chest surface (that is, the velocity of bouncing or retracting a...

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Abstract

The invention discloses a method and a device for randomly detecting or dynamically monitoring central arterial pressure. The method for randomly detecting or dynamically monitoring central arterial pressure comprises the following steps: fixing an ultrasonic probe coated with a coupling agent on a skin surface of a detected part; starting a doppler ultrasound detection device and recording a doppler frequency shift signal; filtering and amplifying the doppler frequency shift signal; establishing a time domain plot of the doppler frequency shift signal; extracting valid feature parameters fromthe time domain plot of the doppler frequency shift signal; confirming the central arterial pressure on the basis of the function relationship between the valid feature parameters and the central arterial pressure. Compared with the traditional method, the method provided by the invention has higher vibration sensitivity and is simpler and easier for operation.

Description

technical field [0001] The invention relates to the technical field of detection methods for central arterial pressure, in particular to a method and device for randomly detecting and dynamically monitoring central arterial pressure. Background technique [0002] The traditional blood pressure diagnosis is carried out by measuring the systolic and diastolic blood pressure of the brachial artery of the upper arm with a mercury column or an electronic sphygmomanometer. However, a large number of literatures and studies have pointed out that the systolic blood pressure (CASP) recorded by the central artery (Central Aorta) is far more capable of predicting cardiovascular events than the blood pressure obtained by traditional methods: 1. Central arterial pressure and target organ damage and Cardiovascular events were more closely related than brachial artery pressure. Changes in central arterial pressure due to increased large arterial stiffness can increase the risk of the thre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/04A61B8/00
CPCA61B8/04A61B8/4281A61B8/488
Inventor 肯尼斯.粲.何海伦娜.爱.何
Owner 肯尼斯粲何