FLOW RATE COMPENSATION FOR TRANSIENT THERMAL RESPONSE OF HOT-WIRE ANEMOMETERS
    6.
    发明申请
    FLOW RATE COMPENSATION FOR TRANSIENT THERMAL RESPONSE OF HOT-WIRE ANEMOMETERS 有权
    热线电流瞬态热响应的流量补偿

    公开(公告)号:US20100218765A1

    公开(公告)日:2010-09-02

    申请号:US12394899

    申请日:2009-02-27

    IPC分类号: A61M16/00 G01F1/69 A62B9/00

    摘要: Systems and methods are described for application of a transitory corrective modification to a hot-wire anemometer flow voltage and/or calculated flow rate to compensate for transient thermal response of the anemometer during a change in mixture of a mixed gas being measured. According to one embodiment a method of applying the transitory corrective modification is provided. An output signal of an exhalation flow sensor of a medical ventilator is received. The flow sensor includes a hot-wire anemometer. The output signal is indicative of a rate of flow of expired gas by a patient. Transient thermal response of the hot-wire anemometer is compensated for by applying a corrective modification to the output signal or a value based thereon. The corrective modification is based at least in part on a fraction of inspired oxygen (FiO2) being supplied by the medical ventilator to the patient.

    摘要翻译: 描述了系统和方法,用于对热线风速计流量电压和/或计算流量进行暂时校正修改,以补偿在测量的混合气体的混合物的变化期间风速计的瞬时热响应。 根据一个实施例,提供了应用短暂校正修改的方法。 接收医用呼吸机的呼气流量传感器的输出信号。 流量传感器包括热线风速计。 输出信号表示患者呼气气体的流速。 通过对输出信号进行校正修改或基于其的值来补偿热线风速计的瞬态热响应。 校正修改至少部分地基于医疗呼吸机向患者提供的一部分吸气氧(FiO2)。

    Flow rate compensation for transient thermal response of hot-wire anemometers
    10.
    发明授权
    Flow rate compensation for transient thermal response of hot-wire anemometers 有权
    热线风速计瞬态热响应流量补偿

    公开(公告)号:US08434479B2

    公开(公告)日:2013-05-07

    申请号:US12394899

    申请日:2009-02-27

    IPC分类号: F16K31/02

    摘要: Systems and methods are described for application of a transitory corrective modification to a hot-wire anemometer flow voltage and/or calculated flow rate to compensate for transient thermal response of the anemometer during a change in mixture of a mixed gas being measured. According to one embodiment a method of applying the transitory corrective modification is provided. An output signal of an exhalation flow sensor of a medical ventilator is received. The flow sensor includes a hot-wire anemometer. The output signal is indicative of a rate of flow of expired gas by a patient. Transient thermal response of the hot-wire anemometer is compensated for by applying a corrective modification to the output signal or a value based thereon. The corrective modification is based at least in part on a fraction of inspired oxygen (FiO2) being supplied by the medical ventilator to the patient.

    摘要翻译: 描述了系统和方法,用于对热线风速计流量电压和/或计算流量进行暂时校正修改,以补偿在测量的混合气体的混合物的变化期间风速计的瞬时热响应。 根据一个实施例,提供了应用短暂校正修改的方法。 接收医用呼吸机的呼气流量传感器的输出信号。 流量传感器包括热线风速计。 输出信号表示患者呼气气体的流速。 通过对输出信号进行校正修改或基于其的值来补偿热线风速计的瞬态热响应。 校正修改至少部分地基于医疗呼吸机向患者提供的一部分吸气氧(FiO2)。