| 摘要 |
<p>Methods and apparatus for administering CPAP to a patient are disclosed. The method includes providing a controllable flow of gas from a source to a patient creating a continuous positive airway pressure and controlling the flow of gas so that it is periodically modified to inject a sigh cycle into the CPAP. The administration of sigh cycle inclusive CPAP is useful for the treatment of respiratory dysfunction and for stimulating the release of surfactant in immature lungs. It is preferred to monitor the airway pressure and to inject the sigh cycle when a drop in pressure is detected. The apparatus centers on a driver (30) used in conjunction with a gas delivery. The driver (30) includes a valve (34), adapted to receive gas from a source, for regulating the flow of gas to the delivery device (10) in response to a control signal. A controller (36), connected to the valve (34), generates the control signal so that the valve (34) periodically modifies the flow of gas, thereby injecting a sigh cycle. A sensor (46) is connected to sense the airway pressure and generate a pressure signal representative of the airway pressure. The controller (36) periodically modifies the flow of gas in response to this pressure signal. It is especially preferred to initiate a sigh cycle when a drop in airway pressure is sensed.</p> |
