发明名称 |
Phonospirometry for non-invasive monitoring of respiration |
摘要 |
To compensate for the poor signal-to-noise ratio when transforming a patient tracheal sound signal into a respiration flow signal, the transformed signal is used when the sound signal is above a threshold, and interpolated values are used when the sound signal is below the threshold. A volume of breath signal is reliably obtained. Respiration start/stop is detected either by analyzing the sound signal or by physical measurement of the patient. A wearable device incorporating the sound signal processing method can provide an immediate indication or alarm when the volume of breath signal indicates a condition requiring medical attention.
|
申请公布号 |
US6241683(B1) |
申请公布日期 |
2001.06.05 |
申请号 |
US19990255003 |
申请日期 |
1999.02.22 |
申请人 |
INSTITUT DE RECHERCHES CLINIQUES DE MONTRéAL (IRCM);MCGILL UNIVERSITY |
发明人 |
MACKLEM PETER T.;QUE CHENG-LI;KELLY SUZANNE M.;KOLMAGA KRZYSTOF;DURAND LOUIS-GILLES |
分类号 |
A61B5/091;A61B7/00;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/091 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|