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Device and method for using oscillatory pressure ratio as an indicator for lung opening during high frequency oscillatory ventilation
Device and method for using oscillatory pressure ratio as an indicator for lung opening during high frequency oscillatory ventilation
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机译:在高频振荡通气中使用振荡压力比作为肺开放指标的装置和方法
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摘要
A method for detecting optimal lung volume and determining the maximum lung compliance of a patient on high frequency oscillatory ventilation includes the steps of measuring the peak-to-peak oscillatory pressures in the proximal and distal ends of an endotracheal tube positioned within the patient. The oscillatory pressure ratio is calculated from the peak-to-peak oscillatory pressures in the proximal and distal ends. The mean airway pressure of the patient is then altered. The oscillatory pressure ratio is then recalculated at the altered mean airway pressure. The mean airway pressure is repeatedly altered while additional oscillatory pressure measurements are made until the oscillatory pressure ratio is at or near its minimum value.
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