Method and system for determining categories of sleep-related breathing events

Abstract

The invention discloses a method and a system for determining categories of sleep-related breathing events. The method includes acquiring chest breathing movement waveforms and abdominal breathing movement waveforms of patients; superimposing the chest breathing movement waveforms and the abdominal breathing movement waveforms to obtain superimposed waveforms; determining the categories of the sleep-related breathing events according to the superimposed waveforms when sleep-related breathing events of the patients occur. The method and the system for determining the categories of the sleep-related breathing events have the advantages that the superimposed waveforms of the chest breathing movement waveforms and the abdominal breathing movement waveforms of the patients are used as determination standards for determining the categories of the sleep-related breathing events, the determination standards are unaffected by air leakage of air channels, accordingly, the categories of the sleep-related breathing events can be accurately determined, accurate bases can be provided for regulating treatment pressures of positive-pressure ventilation treatment apparatuses, treatment effects and the treatment compliance can be greatly improved for the patients, and the use experience of the patients can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for determining the types of sleep breathing events, and also to a system for determining the types of sleep breathing events. Background technique [0002] Sleep apnea-hypopnea syndrome refers to repeated episodes of apnea and hypopnea more than 30 times or sleep apnea-hypopnea index (AHI, Apnea Hypopnea Index) ≥5 times per hour during sleep each night accompanied by clinical symptoms such as lethargy . Apnea is the temporary cessation of breathing during sleep, as manifested by a drop in respiratory airflow below 10% of normal breathing amplitude for at least 10 seconds; 10 seconds, accompanied by a decrease in blood oxygen saturation ≥4% from the basal level or arousal. Apnea events and hypopnea events are both sleep breathing events. Repeated occurrence of sleep apnea during sleep can easily cause severe hypoxia in the brain and blood, resulting in hypoxem...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the method for detecting apnea events or hypopnea events based on airflow signals in the prior art is easily affected by air leakage, which may lead to misjudgment or leakage of apnea events or hypopnea events. judgment, which may lead to wrong adjustment of the treatment pressure output by the positive pressure ventilation treatment machine, affecting the treatment effect of the patient

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