A Constant Ratio Air-Oxygen Mixer

Inspired oxygen concentration has been measured when ventilating lung models and patients with Bird pressure cycled respirators. It has been found that with normal lungs the inspired oxygen concentration is predictable from the end-inspiratory pressure recorded on the respirator manometer. When lung mechanics are abnormal, the relationship between inspired oxygen concentration and end-inspiratory pressure is not sufficiently precise to allow accurate prediction of inspired concentration of oxygen.

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A Constant Ratio Air-Oxygen Mixer

Abstract: A new device has been developed which delivers regulated oxygen mixtures for use in respiratory therapy. The device is simple and compact for use at the bedside, and From the Harvard

Cited by 2 publications

References 4 publications

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Nitrous Oxide as an Analgesic in Acute Myocardial Infarction

Oxygen Administration during Artificial Ventilation with Pressure Cycled Respirators

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