发明名称 |
NON-CONSTRAINT APNEA DETECTION SYSTEM, METHOD THEREFOR AND PROGRAM THEREFOR |
摘要 |
PROBLEM TO BE SOLVED: To provide a non-constraint apnea detection system that realizes low-cost and high-precision analysis of a breathing state without binding a subject by generating a high frequency sound upon attaching an expiratory sound generator having a silent whistle to the nose and/or the mouth and by collecting the sound, and to provide a method therefor and a program therefor.SOLUTION: A non-constraint apnea detection system comprises: an expiratory sound generator 2 that has a silent whistle capable of generating a high frequency sound of 5 kHz or higher and is attached to the nose or the mouth; a sensor 3 that can receive a breathing sound generated from the expiratory sound generator 2 or from the nose or the mouth; a frequency analysis part 5 that analyzes a spectrum of the breathing sound; a spectrum envelope analysis part 6 that analyzes a spectrum envelope of the spectrum to obtain a spectrum envelope curve; and a breathing state analysis part 7 that determines an apnea state when the spectrum envelope cuve has no maximum points or when intensity in the frequency giving a peak point among the maximum points does not exceed a desired threshold. |
申请公布号 |
JP2014064675(A) |
申请公布日期 |
2014.04.17 |
申请号 |
JP20120211242 |
申请日期 |
2012.09.25 |
申请人 |
YAMAGUCHI PREFECTURAL INDUSTRIAL TECHNOLOGY INSTITUTE;YAMAGUCHI UNIV |
发明人 |
MATSUMOTO YOSHIAKI;KO SHIYOUI;SUGIMOTO HIDETSUGU |
分类号 |
A61B5/08;A61B5/097 |
主分类号 |
A61B5/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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