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    • 3. 发明授权
    • Gas exhaust system for a gas delivery mask
    • 用于气体输送面罩的排气系统
    • US07849855B2
    • 2010-12-14
    • US11155075
    • 2005-06-17
    • Brian WoodardErik HolversonBenjamin K. Sun
    • Brian WoodardErik HolversonBenjamin K. Sun
    • A61M16/00
    • A61M16/06A61M16/0633A61M16/0655A61M16/0825A61M2205/42
    • A noise-suppressing gas exhaust system for a gas delivery mask is provided. The system may include a face mask, an arm assembly, and a gas exhaust member. The face mask may be configured to interface with a subject's face. The arm assembly may be configured to support the face mask. The gas exhaust member may be coupled to the arm assembly and may include a single gas passageway extending therethrough. The gas passageway may extend from a first opening formed in a first side of the gas exhaust member to a second opening formed in a second side of the gas exhaust member. The first opening may have a cross-sectional area of about 0.01 square inches to about 0.03 square inches, and the second opening may have a substantially larger cross-sectional area than the cross-sectional area of the first opening.
    • 提供了一种用于气体输送掩模的噪声抑制排气系统。 该系统可以包括面罩,臂组件和排气构件。 面罩可以配置成与受试者的脸部相接触。 臂组件可以被配置为支撑面罩。 排气构件可以联接到臂组件,并且可以包括从其延伸穿过的单个气体通道。 气体通道可以从形成在排气构件的第一侧的第一开口延伸到形成在排气构件的第二侧中的第二开口。 第一开口可以具有约0.01平方英寸至约0.03平方英寸的横截面面积,并且第二开口可以具有比第一开口的横截面面积大得多的横截面面积。