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Noninvasive continuous blood pressure measurement device

A pressure and arterial blood vessel technology, applied in the field of non-invasive continuous blood pressure measurement devices, can solve the problems of tissue necrosis, finger artery congestion, price, usability and accuracy, and achieve the effect of improving accuracy

Active Publication Date: 2015-04-01
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, the clinical promotion of these devices has not been successful due to reasons such as price, ease of use, and unsatisfactory accuracy.
In addition, because this method requires continuous and constant pressure on the patient's finger, it may cause complications such as finger artery congestion and even tissue necrosis.

Method used

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Embodiment Construction

[0048] The invention improves the existing non-invasive continuous blood pressure measurement technology in principle. The existing measurement technology is based on infrared light estimation of blood volume change combined with blood volume compensation method, but the inventors use ultrasonic echo to accurately measure arterial volume technology combined with arterial volume compensation method for measurement. Compared with estimating blood volume changes based on infrared light, the use of ultrasonic echoes avoids the adverse effects of ambient light and surrounding small arteriovenous blood volume on the measurement results, making the measurement more accurate.

[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] figure 1 Shown is a schematic structural view of the non-invasive continuous blood pressure measurement device according to the present invention. It can be s...

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Abstract

The invention relates to a noninvasive continuous blood pressure measurement device and a method. By the combination of the technology of ultrasound echo accurate measurement artery volume and the technology of artery volume compensation and precise measurement of ultrasound echo time delay, precise calculation of positions at arterial walls of large arteries can be performed, and accurate artery diameters or cross sectional area numerical values are calculated. Physical quantity with measuring significance of blood volume in a direct characterization artery is obtained. An infrared light intensity signal in an existing blood volume compensation method is replaced by the physical quantity, and negative effects on a measurement result by environmental light and blood volume of peripheral small arteries and veins can be completely removed. In addition, the noninvasive continuous blood pressure measurement device and the method can be directly used on large arteries of superficial layers and matched with an external pressurization air sac and a servo control pressure tracing device, so that the method can be an artery blood vessel volume compensation method in real significance. Continuous blood pressure wavy noninvasive measurement on main arteries can be achieved, and accuracy of the continuous blood pressure wavy measurement is greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of continuous blood pressure measurement, in particular to a noninvasive continuous blood pressure measurement device based on ultrasonic echo measurement arterial volume technology and arterial volume compensation method, and a method thereof. 【Background technique】 [0002] Cardiovascular disease has always been the "number one killer" that threatens human life. According to the statistics of the World Health Organization, more than 17 million people died of cardiovascular diseases in the world in 2008, and more than 3 million of them died under the age of 60. Cardiovascular disease has always been the leading cause of death in my country. In 2009, about 3 million people died of cardiovascular diseases in my country, accounting for 41% of the total deaths. The morbidity and mortality of cardiovascular diseases in the Chinese population are on the rise. It is estimated that the number of cardiovascular ...

Claims

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Application Information

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IPC IPC(8): A61B8/04
Inventor 王丛知郑海荣钱明肖杨李永川牛丽丽
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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