Measurement of respiratory effort using a suprasternal sensor
    8.
    发明授权
    Measurement of respiratory effort using a suprasternal sensor 有权
    使用超中心传感器测量呼吸力

    公开(公告)号:US06445942B1

    公开(公告)日:2002-09-03

    申请号:US09396032

    申请日:1999-09-15

    IPC分类号: A61B508

    摘要: The invention is an optical sensor whose output represents or measures movement of the skin of the suprasternal notch, this movement being a measure of respiratory effort. The use of a trough detector, with a time constant long compared with a breath but short compared with the interval between changes in body position, allows detection of the optical signal corresponding to zero effort. Subtraction of the trough signal from the optical signal produces a self-zeroing effort signal which automatically compensates for changes in body position. A soft, low irritant adhesive material, which may be left in place on the skin for several days, allows the sensor to be placed and removed as often as desired without injuring the skin.

    摘要翻译: 本发明是一种光学传感器,其输出表示或测量了上节点的皮肤运动,该运动是呼吸努力的量度。 与身体位置变化之间的间隔相比,与呼吸相比时间常数长的槽检测器的使用允许检测对应于零功率的光信号。 从光信号中减去谷信号产生自动归零功能信号,自动补偿身体位置的变化。 柔软,低刺激性的粘合剂材料可以在皮肤上留置几天,使得传感器能够根据需要经常地放置和去除,而不会伤害皮肤。

    AUTOMATED CONTROL FOR DETECTION OF FLOW LIMITATION
    10.
    发明申请
    AUTOMATED CONTROL FOR DETECTION OF FLOW LIMITATION 有权
    用于检测流量限制的自动控制

    公开(公告)号:US20110203588A1

    公开(公告)日:2011-08-25

    申请号:US12599715

    申请日:2009-05-09

    IPC分类号: A61M16/00

    摘要: A respiratory flow limitation detection device, which can include an airway pressure treatment generator, determines a flow limitation measure (506) based one or more shape indices for detecting partial obstruction and a measure of a patient's ventilation or respiratory duty cycle. The shape indices may be based on function(s) that ascertain the likelihood of the presence of M-shaped breathing patterns and/or chair-shaped breathing patterns. The measure of ventilation may be based on analysis of current and prior tidal volumes to detect a less than normal patient ventilation. The duty cycle measure may be a ratio of current and prior measures of inspiratory time to respiratory cycle time to detect an increase in the patient's inspiratory cycle time relative to the respiratory cycle time. A pressure setting based on the flow limitation may then be used to adjust the treatment pressure to ameliorate the patient's detected flow limitation condition.

    摘要翻译: 可以包括气道压力治疗发生器的呼吸流量限制检测装置基于用于检测部分阻塞的一个或多个形状指数和患者的通气或呼吸占空比的测量来确定流量限制测量(506)。 形状指数可以基于确定存在M形呼吸模式和/或椅形呼吸模式的可能性的功能。 通气量可以基于当前和以前潮气量的分析,以检测不到一般的患者通气。 占空比测量可以是当前和先前测量吸气时间与呼吸周期时间之间的比例,以检测患者吸气循环时间相对于呼吸周期时间的增加。 然后可以使用基于流量限制的压力设置来调节治疗压力以改善患者检测到的流量限制条件。