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    Distinguishing closed and open respiratory airway apneas by complex admittance values
    2.
    发明授权
    Distinguishing closed and open respiratory airway apneas by complex admittance values 有权
    通过复杂导纳值区分闭合和开放的呼吸道呼吸暂停

    公开(公告)号：US09028423B2

    公开(公告)日：2015-05-12

    申请号：US12376136

    申请日：2007-08-30

    申请人： David John Bassin ,  Benriah Goeldi

    发明人： David John Bassin ,  Benriah Goeldi

    IPC分类号： A61B5/087 ,  A61M16/00 ,  A61B5/085 ,  A61B5/00

    CPC分类号： A61B5/4818 ,  A61B5/0826 ,  A61B5/085 ,  A61B5/087 ,  A61M16/00 ,  A61M16/0006 ,  A61M16/0069 ,  A61M16/024 ,  A61M2016/0015 ,  A61M2016/0027 ,  A61M2016/0033 ,  A61M2016/0039 ,  A61M2205/15 ,  A61M2205/3303 ,  A61M2230/46 ,  A61M2230/65

    摘要： Methods and apparatus are disclosed for determining the occurrence of a closed or open apnea. Respiratory air flow from a patient is measured to give an air flow signal. The determination of an apnea is performed by applying an oscillatory pressure waveform of known frequency to a patient's airway, calculating a complex quantity representing a patient admittance (12) and comparing its value with ranges (14,16) indicative of open or closed apneas. The method distinguishes open from closed apneas even when the model used to calculate admittance is not based on details of the respiratory apparatus. In addition the patient admittance may be compared with admittance during normal breathing to avoid having to characterize the airway.

    摘要翻译： 公开了用于确定闭合或开放性呼吸暂停发生的方法和装置。 测量来自患者的呼吸气流以产生气流信号。 呼吸暂停的确定通过将已知频率的振荡压力波形应用于患者的气道来进行，计算代表患者导纳（12）的复数，并将其值与指示开放或闭合呼吸暂停的范围（14,16）进行比较。 即使用于计算导纳的模型不是基于呼吸装置的细节，该方法也可以区分开闭合呼吸暂停。 此外，可以将患者准入与正常呼吸期间的导纳进行比较，以避免对气道进行表征。