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    • 1. 发明授权
    • Temperature compensation of a respiratory gas sensor
    • 呼吸气体传感器的温度补偿
    • US08273033B2
    • 2012-09-25
    • US11958872
    • 2007-12-18
    • Joesph A. OrrPaul B. GunnesonAnthony T. Pierry
    • Joesph A. OrrPaul B. GunnesonAnthony T. Pierry
    • A61B5/00
    • A61B5/097A61B5/0833Y10T436/207497
    • A mainstream gas monitoring system and method that includes a mainstream airway adapter, and a gas sensing assembly associated with the mainstream airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The gas sensing portion is subject to temperature variations associated with variations in flow rate and direction of respiratory gases. Methods are described that utilize the measurement of instantaneous respiratory flow rate combined with estimates of gas temperature and composition to estimate the sensor cooling effects from which a flow based time varying compensation factor is derived.
    • 主流气体监测系统和方法,其包括主流气道适配器和与主流气道适配器相关联的气体感测组件,以测量通过适配器的气流的分析物。 气体传感部分输出指示主流气道适配器中气体流中分析物的信号。 处理部分接收来自气体检测部分的信号,并且基于来自气体感测部分的信号确定气流中的分析物的量。 气体检测部分受到与呼吸气体的流速和方向的变化相关的温度变化的影响。 描述了利用瞬时呼吸流速的测量结合气体温度和组成的估计来估计传导器冷却效应的方法,从而导出基于流的时变补偿因子。
    • 2. 发明申请
    • Temperature Compensation of a Respiratory Gas Sensor
    • 呼吸气体传感器的温度补偿
    • US20080161711A1
    • 2008-07-03
    • US11958872
    • 2007-12-18
    • Joseph A. OrrPaul B. GunnesonAnthony T. Pierry
    • Joseph A. OrrPaul B. GunnesonAnthony T. Pierry
    • A61B5/08
    • A61B5/097A61B5/0833Y10T436/207497
    • A mainstream gas monitoring system and method that includes a mainstream airway adapter, and a gas sensing assembly associated with the mainstream airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The gas sensing portion is subject to temperature variations associated with variations in flow rate and direction of respiratory gases. Methods are described that utilize the measurement of instantaneous respiratory flow rate combined with estimates of gas temperature and composition to estimate the sensor cooling effects from which a flow based time varying compensation factor is derived.
    • 主流气体监测系统和方法,其包括主流气道适配器和与主流气道适配器相关联的气体感测组件,以测量通过适配器的气流的分析物。 气体传感部分输出指示主流气道适配器中气体流中分析物的信号。 处理部分接收来自气体检测部分的信号,并且基于来自气体感测部分的信号确定气流中的分析物的量。 气体检测部分受到与呼吸气体的流速和方向的变化相关的温度变化的影响。 描述了利用瞬时呼吸流速的测量结合气体温度和组成的估计来估计传导器冷却效应的方法,从而导出基于流的时变补偿因子。
    • 4. 发明授权
    • Signal quality determination and signal correction system and methods
    • 信号质量确定和信号校正系统及方法
    • US08357099B2
    • 2013-01-22
    • US11957995
    • 2007-12-17
    • Paul B. GunnesonAnthony T. Pierry
    • Paul B. GunnesonAnthony T. Pierry
    • A61B5/08
    • A61B5/083A61B5/0836A61M16/021A61M16/0816A61M16/0833A61M16/0858A61M2016/0027A61M2016/0036A61M2016/1025A61M2016/103A61M2230/432A61M2230/435
    • A mainstream gas monitoring system and method that includes using a mainstream airway adapter and a gas sensing assembly associated with the airway adapter to measure an analyte of a gas flow through the adapter. A gas sensing portion outputs a signal indicative of the analyte in a gas flow in the mainstream airway adapter. A processing portion receives the signal from the gas sensing portion and determines an amount of the analyte in the gas flow based on the signal from the gas sensing portion. The processing portion determines whether the oxygen measurements are of sufficient quality for their intended use, such as for measuring oxygen consumption or metabolic estimations. Quality measurements may be used to improve accuracy of derived metabolic estimations. Methods are provided by which carbon dioxide measurements can be processed and substituted for direct oxygen measurement for all or part of a respiratory cycle.
    • 主流气体监测系统和方法,其包括使用主流气道适配器和与气道适配器相关联的气体感测组件来测量通过适配器的气流的分析物。 气体传感部分输出指示主流气道适配器中气体流中分析物的信号。 处理部分接收来自气体检测部分的信号,并且基于来自气体感测部分的信号确定气流中的分析物的量。 处理部分确定氧测量对于其预期用途是否具有足够的质量,例如用于测量氧消耗或代谢估计。 可以使用质量测量来提高派生代谢估计的准确性。 提供了可以处理二氧化碳测量并代替全部或部分呼吸循环的直接氧气测量的方法。