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A method and device for non-invasive monitoring of cerebral blood oxygen

A cerebral blood oxygen and monitoring area technology, applied in the field of biomedical signal acquisition and processing, can solve the problems of influence, interference, stability and insufficient prediction accuracy, and achieve the effects of good flexibility, low cost, and convenient promotion.

Active Publication Date: 2021-07-20
CHONGQING UNIV
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Problems solved by technology

However, a large number of literatures show that most domestic researchers use dual-wavelength light sources to detect cerebral blood oxygen signals and then construct cerebral blood oxygen prediction models. Influence and Interference of Human Head Tissue Environmental Factors

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  • A method and device for non-invasive monitoring of cerebral blood oxygen
  • A method and device for non-invasive monitoring of cerebral blood oxygen
  • A method and device for non-invasive monitoring of cerebral blood oxygen

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Embodiment Construction

[0072] In recent years, there have been more and more researchers at home and abroad researching and developing non-invasive cerebral blood oxygen monitoring equipment, but as far as the current domestic situation is concerned, mature equipment is still scarce, while foreign non-invasive cerebral blood oxygen monitoring equipment is expensive to purchase and diagnostic costs High, the domestic penetration rate is not high. Therefore, the proposal of the present invention can effectively fill up some vacancies in this field, and provide certain support for the development of domestic cerebral blood oxygen monitoring equipment. For the monitoring of cerebral blood oxygen signal, due to the particularity of its application environment, such devices are often used in the clinical operation environment, so it is necessary to fully consider the monitoring site and the type of monitoring parameters. First of all, the object of the present invention is the patient undergoing surgery a...

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Abstract

The invention discloses a method and a monitoring device for non-invasive monitoring of cerebral blood oxygen. The invention utilizes the difference in absorption of near-infrared light between oxygenated hemoglobin and deoxygenated hemoglobin to develop a method for monitoring blood oxygen saturation in local tissues of the human brain. Non-invasive monitoring method, this method will not cause harm to the human body, and the continuous real-time monitoring of cerebral blood oxygen value can be realized through the continuous cerebral blood oxygen value prediction model, considering the influence of melanin and adding a correction factor, respectively detecting surface interference signals With the deep useful signal, the collected signal content is more abundant, and it is convenient to process the cerebral blood oxygen signal with high signal-to-noise ratio, and then obtain the local blood oxygen saturation monitoring value in the prefrontal region of the brain that removes the interference signal of the human head tissue, so that Cerebral blood oxygen continuous monitoring has better stability and higher monitoring accuracy. The invention provides a new solution for non-invasive monitoring of cerebral blood oxygen, and is more conducive to promoting the clinical application of non-invasive monitoring of cerebral blood oxygen.

Description

technical field [0001] The invention relates to the technical field of biomedical signal acquisition and processing, in particular to a method and a monitoring device for non-invasive monitoring of cerebral blood oxygen. Background technique [0002] Oxygen is an important substance to maintain the metabolism of the human body. Hypoxia in human tissue is an important cause of certain diseases, and may even have serious consequences, directly threatening life. The blood oxygen saturation of human tissue is an important parameter reflecting tissue oxygen supply and has extremely important clinical value. [0003] Brain tissue has a high metabolic rate, and its oxygen consumption accounts for 20% of the whole body's oxygen consumption, and it is particularly sensitive to hypoxia. Short-term hypoxia may cause irreversible damage to the central system. Brain protection is an important issue in cardiovascular surgery under deep hypothermic circulatory arrest, endovascular surger...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/1455A61B5/00
CPCA61B5/14553A61B5/725
Inventor 季忠钟文韬孙长龙李思荟
Owner CHONGQING UNIV
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