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    • 8. 发明授权
    • Ventilating apparatus
    • 通风设备
    • US6009871A
    • 2000-01-04
    • US968069
    • 1997-11-12
    • Siegfried KiskeKarsten Hoffmann
    • Siegfried KiskeKarsten Hoffmann
    • A61M16/00A61M16/10A61M16/22
    • A61M16/00A61M16/10A61M16/22
    • A ventilating apparatus includes a closed breathing loop (3) which is supplied with the gases needed for ventilation via a metering unit (9). The ventilating apparatus is improved in such a manner that the respiratory gas can be metered during the inspiration phase without affecting the respiratory gas stroke volume supplied to the patient. The ventilating apparatus includes a flow-measuring device (14) for detecting a gas volume (V.sub.F) which is metered into the closed breathing loop (3) during the inspiration phase. A subtraction element (16) forms a difference volume (V.sub.T -V.sub.F) between the pump volume (V.sub.T) and the gas volume (V.sub.F). A switch (21) permits utilizing the difference volume (V.sub.T -V.sub.F) as a new adjusting value for the pump volume of the respiratory gas pump unit (2).
    • 一种通风装置包括一个闭合呼吸回路(3),该呼吸回路(3)通过计量单元(9)供应通风所需的气体。 改善通气装置,使得呼吸气体可以在吸气阶段计量,而不影响供应给患者的呼吸气体行程量。 通风装置包括用于检测在吸气阶段期间计量到闭合呼吸回路(3)中的气体体积(VF)的流量测量装置(14)。 减法元件(16)在泵体积(VT)和气体体积(VF)之间形成差异体积(VT-VF)。 开关(21)允许利用差分体积(VT-VF)作为呼吸气体泵单元(2)的泵体积的新调节值。