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    • 8. 发明申请
    • HUMIDIFICATION OF RESPIRATORY GASES
    • 呼吸气体的湿度
    • US20090223514A1
    • 2009-09-10
    • US12397850
    • 2009-03-04
    • Ian Malcolm SMITHAndrew Roderick BathNathan John RowAlexander Virr
    • Ian Malcolm SMITHAndrew Roderick BathNathan John RowAlexander Virr
    • A61M16/16
    • A61M16/1075A61M16/026A61M16/109A61M16/1095A61M16/16A61M16/161A61M2016/0039A61M2205/3358A61M2205/3365A61M2205/3368A61M2205/3653A61M2205/502
    • A humidifier for a respiratory apparatus for delivering a humidified flow of breathable gas to a patient includes a humidifier chamber configured to store a supply of water to humidify the flow of breathable gas, the humidifier chamber comprising a first heating element configured to heat the supply of water; a relative humidity sensor to detect a relative humidity of ambient air and generate signals indicative of the ambient relative humidity; a first temperature sensor to detect a temperature of ambient air and generate signals indicative of the ambient temperature; and a controller configured to determine an absolute humidity of the ambient air from the signals generated by the relative humidity sensor and the first temperature sensor and to control the first heating element to provide a predetermined relative humidity to the flow of breathable gas. A method of humidifying a flow of breathable gas to be provided to a patient includes determining an absolute humidity of ambient air used to form the flow of breathable gas; and controlling a temperature of a supply of water that humidifies the flow of breathable gas to provide a predetermined absolute humidity corresponding to a predetermined temperature and a predetermined relative humidity of the flow to be delivered to the patient.
    • 一种用于向患者输送加湿气体的呼吸装置的加湿器包括:加湿器室,被配置为储存供水,以加湿可呼吸气体流,所述加湿器室包括第一加热元件,所述第一加热元件构造成加热 水; 相对湿度传感器,用于检测环境空气的相对湿度并产生指示环境相对湿度的信号; 第一温度传感器,用于检测环境空气的温度并产生指示环境温度的信号; 以及控制器,被配置为根据由所述相对湿度传感器和所述第一温度传感器产生的信号来确定所述环境空气的绝对湿度,并且控制所述第一加热元件以对所述透气气体的流动提供预定的相对湿度。 加湿要提供给患者的可呼吸气体流的方法包括确定用于形成透气气体流的环境空气的绝对湿度; 并且控制加湿可呼吸气体流量的水供应的温度,以提供对应于要传送给患者的流量的预定温度和预定相对湿度的预定绝对湿度。