Screening system for sleep apnea syndrome in family environment

A technology for sleep apnea and home environment, applied in the field of biomedicine, can solve the problems of high requirements for snoring sample recording conditions, unsuitable detection, and impossible to achieve detection accuracy.

Active Publication Date: 2012-05-02
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, our research found that it is almost impossible to achieve the same or similar detection accuracy as PSG by only using the single characteristic of snoring, and it cannot completely replace PSG detection.
In addition, the existing research has high requirements on the recording conditions of snoring samples, and the requirements on the recording conditions directly limit the popularization and use of the method
Overall, existing methods are not suitable for detection in home settings

Method used

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  • Screening system for sleep apnea syndrome in family environment
  • Screening system for sleep apnea syndrome in family environment
  • Screening system for sleep apnea syndrome in family environment

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Embodiment Construction

[0073] As shown in the accompanying drawings, the screening system for sleep apnea syndrome in the family environment of the present invention,

[0074] Including the snoring acquisition module: the snoring signal used is placed 18-20cm above the patient's mouth and nose to record the snoring signal for 6-8 hours with a non-contact one-way microphone (20-20000Hz, SM81). The sampling rate is set to 8k Hz during recording, and the accuracy is 16bit, and use a computer (IBM Think Pad 400) to record and save the data.

[0075] Snoring processing module:

[0076] The snoring processing module mainly includes a preprocessing part, an endpoint detection part, an energy ratio solving part,

[0077] Among them, the preprocessing part provides the process of framing, pre-emphasis and windowing of the snoring sound signal, and completes the preprocessing of the snoring sound signal.

[0078] The research found that 99% of the snoring durations are distributed between 0.5s and 1.8s. 98...

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Abstract

The invention discloses a screening system for sleep apnea syndrome in family environment, comprising a snore data obtaining module, a snore processing module and a distinguishing module, wherein the data obtaining module is used for collecting the snore data; the snore signal processing module is used for firstly performing the preprocess of the voice signals such as framing, pre-emphasizing and window adding and then completing the end point detection for the snore by a double-gate detecting method; the first ten frame data of the snore sample is taken as the first measure of the background noise in the process of performing end point detection; and then the data of snore section is transmitted to an energy-ratio solution module. Finally, resolving the features of the energy ratio of the snore section and then transmitting the features of the energy ratio to the distinguishing module. The distinguishing module takes the energy ratio as the categorical data; if the energy ratio of a patient is higher than a certain threshold quantity, then the patient is distinguished as OSAS sufferer; if not, then the patient is the single snorer. The invention provides a system that brings less interference for the sleep of the patient and low cost and can still reach higher screening precision even in family environment.

Description

technical field [0001] The invention relates to the screening of sleep-disordered breathing in the field of biomedicine, in particular to the screening system of obstructive sleep apnea syndrome in the family environment. Background technique [0002] Sleep apnea is abnormal breathing that occurs during sleep, including sleep apnea syndrome, hypoventilation syndrome, and related sleep apnea disorders caused by chronic pulmonary and neuromuscular diseases, among which obstructive sleep apnea syndrome (OSAS) ) mainly. The survey found that about 9% of women and 24% of men in the middle-aged population in the United States suffer from different degrees of OSAS, OSAS patients account for 3-5% of the total population in Australia, and 5.4-7.5% of the population in India suffer from OSAS . Studies have shown that OSAS can cause symptoms such as daytime drowsiness, dizziness, headaches, memory loss, fatigue, unresponsiveness, and abnormal sleep behaviors. Long-term OSAS can caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08
Inventor 刘文龙张海秀赵玉霞
Owner DALIAN UNIV OF TECH
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