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    • 6. 发明申请
    • Respiratory apparatus and methods of respiratory treatment
    • 呼吸器具和呼吸治疗方法
    • US20050005935A1
    • 2005-01-13
    • US10489143
    • 2002-09-17
    • Lewis Gradon
    • Lewis Gradon
    • A61B5/087A61M16/00
    • A61B5/087A61B5/7257A61M16/024A61M2230/40
    • Methods and apparatus for detecting apnoea that use ultrasonic sound waves are disclosed. The method consists of applying ultrasonic sound waves of varying frequency to a patient's airway and detecting their reflected sound waves. The sound waves are then analysed to determine whether there is a narrowing of the airway. In particular a transmitting ultrasonic transducer and receiving ultrasonic transducer are located on the interior surface of a mask and positioned so as to be directed towards the nares of the patient. A signal is emitted through the transmitting transducer and received at the receiving transducer. The received signal indicates a distance to a reflection or a distance to the narrowing of the upper respiratory tract. In this manner obstructions or narrowing of a patient's airway tract may be identified as reflections which appear at anatomically appropriate distances.
    • 公开了用于检测使用超声波的呼吸暂停的方法和装置。 该方法包括将不同频率的超声波应用于患者的气道并检测其反射的声波。 然后分析声波以确定气道是否变窄。 特别地,发射超声波换能器和接收超声波换能器位于面罩的内表面上并定位成朝向患者的鼻孔。 信号通过发送换能器发射并在接收换能器处被接收。 接收到的信号表示到反射的距离或到上呼吸道变窄的距离。 以这种方式,患者的气道的障碍物或变窄可以被识别为在解剖学上适当的距离处出现的反射。