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Non-invasive monitoring method and device for cerebral blood oxygen

A cerebral blood oxygen, 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

Active Publication Date: 2020-12-08
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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  • Non-invasive monitoring method and device for cerebral blood oxygen
  • Non-invasive monitoring method and device for cerebral blood oxygen
  • Non-invasive monitoring method and device for 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 non-invasive monitoring method and a monitoring device for cerebral blood oxygen, and develops a non-invasive monitoring method for blood oxygen saturation of local tissues of a human brain by utilizing different absorbances of oxyhemoglobin and deoxidized hemoglobin to near-infrared light, so that the method does not cause harm to a human body; continuous real-time monitoring of the cerebral blood oxygen value can be achieved through a continuous cerebral blood oxygen value prediction model, the influence of melanin is considered, correction factors are added, surface interference signals and deep useful signals are detected respectively, the content of the collected signals is richer, and the cerebral blood oxygen signals with the high signal-to-noise ratio canbe obtained through processing conveniently; further, the cerebral forehead lobe area local oxyhemoglobin saturation monitoring value without the human head tissue interference signal is solved, so that the cerebral oxyhemoglobin continuous monitoring stability is better, and the monitoring precision is higher. A new solution is provided for non-invasive monitoring of cerebral blood oxygen, and clinical application of non-invasive monitoring of cerebral blood oxygen can be better promoted.

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 Applications(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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