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    • 8. 发明公开
    • DETERMINATION OF MASK FITTING PRESSURE AND CORRECT MASK FIT
    • BESTIMMUNG DES MASKENANPASSDRUCKES UND KORREKTION DER MASKENPASSUNG
    • EP1144036A4
    • 2004-07-14
    • EP99966774
    • 1999-12-21
    • RESMED LTD
    • BREWER GREGORY NEWTONCOLLA GREGORY ALANFARRUGIA STEVEN PAULSOMAIYA CHINMAYEE
    • A61M16/06A61M16/00
    • A61M16/00A61M16/0069A61M16/024A61M16/06A61M16/0605A61M2016/0021A61M2016/0036A61M2205/13A61M2205/15A62B27/00
    • CPAP treatment apparatus (10), as one form of positive pressure ventilatory assistance, is disclosed. A turbine/blower (14), operated by a mechanically coupled electrical motor (16), receives air or breathable gas at an inlet (18) thereof, and supplies the breathable gas at a delivery pressure to a delivery tube/hose (20) having connection at the other end thereof with a nose mask (12). A microcontroller (38) has an operational "Mask-Fit" mode. An initial constant pressure level is applied by the blower (14) to the mask (12). If the functional mode is a Manual mode, then the mask-fit test pressure is the current 'set' pressure. If the functional mode is the Automatic Titration mode, the mask-fit test pressure is the 95th percentile pressure of the previous session, otherwise it is the base treatment pressure, e.g. 10-12 cm H2O. This constant pressure is applied for a period of time, typically 1-3 minutes. The microcontroller (38) continuously determines mask leak as the value, fLEAK, from a flow sensor (32), comparing this to a threshold, and providing the patient with a visual indication of degree of leak. In this way the patient can manipulate the mask to ensure correct fitting as indicated by the appropriate message or indication.
    • 作为正压通气辅助的一种形式,公开了CPAP治疗设备(10)。 由机械耦合电动机(16)操作的涡轮机/鼓风机(14)在其入口(18)处接收空气或可呼吸气体,并且将输送压力下的可呼吸气体供应到输送管/软管(20) 在其另一端连接有鼻罩(12)。 微控制器(38)具有可操作的“模板匹配”模式。 鼓风机(14)将初始恒定压力水平施加到面罩(12)。 如果功能模式是手动模式,那么面罩配合测试压力就是当前的“设定”压力。 如果功能模式是自动滴定模式,则面罩适合测试压力是前一次的第95百分位压力,否则它是基础治疗压力,例如, 10-12厘米水柱。 施加该恒定压力一段时间,通常为1-3分钟。 微控制器(38)连续确定面罩泄漏为来自流量传感器(32)的值fLEAK,将其与阈值进行比较,并向患者提供泄漏程度的视觉指示。 通过这种方式,患者可以操纵面罩以确保正确的安装,如适当的消息或指示所示。