| 摘要 |
A portable oxygen delivery system supplies oxygen during prolonged transport via ambulance or helicopter to patients who are critically ill and in need of ventilatory support. The system includes two sets of oxygen tanks delivering oxygen to a manifold having two valve regulators. Oxygen flows from the first set of oxygen tanks through the first valve regulator, which remains open while the second valve regulator is closed, to the patient's portable ventilator. When the pressure from the first set of tanks drops below a given threshold, the first valve regulator closes and the second valve regulator opens, allowing oxygen to flow from the second set of oxygen tanks through the second valve regulator to the patient's ventilator. This system thereby maintains a continuous flow of oxygen to the patient's ventilator.
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