Method and system for motor failure detection
    5.
    发明授权
    Method and system for motor failure detection 有权
    电机故障检测方法及系统

    公开(公告)号:US09119923B2

    公开(公告)日:2015-09-01

    申请号:US12081232

    申请日:2008-04-11

    摘要: Systems and methods for detecting developing faults in a flow generator or ventilator during therapeutic use thereof are provided. The motor current may be measured to estimate the torque input by the motor, while the output torque from the impeller may be determined (e.g., as inferred from the motor control system model and/or by consulting a lookup table). One or more transducers may collect data useful in determining the input and output torques. A difference between the input (to the motor) torque and the output (from the impeller) torque may be calculated. The difference, optionally filtered using a low-pass filter to reduce noise, may be compared to a predetermined threshold once or over a period of time to detect gross failures and/or developing failures. Once a failure or developing failure is detected, a user may be alerted and/or the flow generator may be placed into a “service required” mode.

    摘要翻译: 提供了用于在治疗使用期间检测流量发生器或呼吸机中的发展中故障的系统和方法。 可以测量电动机电流以估计由电动机输入的扭矩,而可以确定来自叶轮的输出扭矩(例如,从电动机控制系统模型推断和/或通过查询表)。 一个或多个换能器可以收集有用的确定输入和输出转矩的数据。 可以计算输入(电机)转矩和输出(从叶轮)转矩之间的差异。 可以使用低通滤波器任意滤波以减少噪声的差异可以与预定阈值进行一次或一段时间的比较,以检测总体故障和/或发展中的故障。 一旦检测到故障或发展中的故障,用户可能被警告和/或流量发生器可能被置于“所需服务”模式。

    METHODS AND APPARATUS FOR ADAPTABLE PRESSURE TREATMENT OF SLEEP DISORDERED BREATHING
    8.
    发明申请
    METHODS AND APPARATUS FOR ADAPTABLE PRESSURE TREATMENT OF SLEEP DISORDERED BREATHING 有权
    适应性压力治疗睡眠障碍性呼吸的方法和装置

    公开(公告)号:US20120291785A1

    公开(公告)日:2012-11-22

    申请号:US13509880

    申请日:2010-11-16

    IPC分类号: A61M16/00

    摘要: Respiratory pressure treatment apparatus include automated methodologies for controlling changes to pressure in the presence of sleep disordered breathing events. In an example apparatus, various levels of expiratory pressure relief can provide different pressure reductions for patient comfort during expiration (333-A, 333-B, 333-C). The control parameters for these levels may be automatically modified based on the detection of an open airway. Similarly, in some embodiments, the levels may be automatically adjusted based on a detection of persistent obstruction. In still further embodiments, control parameters associated with a rise time of an early portion of an inspiratory pressure treatment may be automatically adjusted upon detection of flow limitation to permit a change to more aggressive waveforms from more comfortable waveforms for the treatment of sleep disordered breathing events.

    摘要翻译: 呼吸压力治疗装置包括用于在存在睡眠呼吸障碍的事件的情况下控制压力变化的自动化方法。 在一个示例性装置中,不同程度的呼气压力释放可以在呼气期间为患者舒适度提供不同的压力降低(333-A,333-B,333-C)。 可以基于开放气道的检测来自动修改这些水平的控制参数。 类似地,在一些实施例中,可以基于持续性阻塞的检测来自动调整水平。 在另外的实施例中,可以在检测到流量限制时自动调节与吸气压力治疗的早期部分的上升时间相关联的控制参数,以允许从更舒适的波形改变更积极的波形,用于治疗睡眠紊乱呼吸事件 。

    Method and system for motor failure detection
    9.
    发明申请
    Method and system for motor failure detection 有权
    电机故障检测方法及系统

    公开(公告)号:US20080251071A1

    公开(公告)日:2008-10-16

    申请号:US12081232

    申请日:2008-04-11

    IPC分类号: A61M16/00 G01R31/34 G08B21/18

    摘要: Systems and methods for detecting developing faults in a flow generator or ventilator during therapeutic use thereof are provided. The motor current may be measured to estimate the torque input by the motor, while the output torque from the impeller may be determined (e.g., as inferred from the motor control system model and/or by consulting a lookup table). One or more transducers may collect data useful in determining the input and output torques. A difference between the input (to the motor) torque and the output (from the impeller) torque may be calculated. The difference, optionally filtered using a low-pass filter to reduce noise, may be compared to a predetermined threshold once or over a period of time to detect gross failures and/or developing failures. Once a failure or developing failure is detected, a user may be alerted and/or the flow generator may be placed into a “service required” mode.

    摘要翻译: 提供了用于在治疗使用期间检测流量发生器或呼吸机中的发展中故障的系统和方法。 可以测量电动机电流以估计由电动机输入的扭矩,而可以确定来自叶轮的输出扭矩(例如,从电动机控制系统模型推断和/或通过查询表)。 一个或多个换能器可以收集有用的确定输入和输出转矩的数据。 可以计算输入(电机)转矩和输出(从叶轮)转矩之间的差异。 可以使用低通滤波器任意滤波以减少噪声的差异可以与预定阈值进行一次或一段时间的比较,以检测总体故障和/或发展中的故障。 一旦检测到故障或发展中的故障,用户可能被警告和/或流量发生器可能被置于“所需服务”模式。