| 摘要 |
Automatically regulating oxygen flow to a patient, sympathetic to a patient's changing needs, is disclosed by a method and apparatus for providing a regulated flow of gas from a gas supply to increase or maintain the oxygen concentration in the patient's bloodstream; by measuring the concentration of the oxygen in the patient's bloodstream; by producing a signal indicative of the oxygen level; and by comparing the measured concentration of oxygen with a preset level, the flow of gas to the patient is constantly regulated. Additionally, in response to a gas flow failure to the patient, a flow of gas is maintained by initiating a flow of gas from an auxiliary gas supply. |
