Apparatus for humidifying a respiratory gas

摘要

A positive pressure gas supply system configured to supply positive pressure gas to a patient includes a CPAP unit configured to generate a flow of positive pressure gas. A humidifier base is positioned to receive the flow of positive pressure gas from the CPAP unit. A receiving portion of the humidifier base is configured to removably receive a refilling module. The refilling module is configured to hold a volume of water, complete a gas flow path partially defined by the humidifier base, and humidify the positive pressure gas. In addition, a respiration tube connecting portion is positioned to remain in communication with a gas discharge passage of the humidifier base when the refilling module is removed from the humidifier base. The respiration tube connecting portion is configured to be connected to a respiration tube and deliver the humidified positive pressure gas to the respiration tube.

主权项

1. A positive pressure gas supply system configured to supply positive pressure gas to a patient, the system comprising:
a continuous positive air pressure (CPAP) unit configured to generate a flow of positive pressure gas; a humidifier base located downstream of the CPAP unit and having a gas feed passage positioned to receive the flow of positive pressure gas from the CPAP unit and having a gas discharge passage, the humidifier base being integrated directly into the CPAP unit or removably joined together with the CPAP unit, the humidifier base comprising a receiving portion with a bottom wall heater plate; a refilling module with a metallic bottom portion configured to be supported by and come into heat conducting contact with the heater plate of the humidifier base when the refilling module is at least partially inserted into the receiving portion of the humidifier base, the refilling module being removably inserted into the receiving portion of the humidifier base to complete a gas flow path from the gas feed passage to the gas discharge passage, and being configured to a) hold a volume of water and b) humidify the positive pressure gas; and a respiration tube connecting portion positioned to remain in communication with the gas discharge passage of the humidifier base when the refilling module is removed from the humidifier base, the respiration tube connecting portion being configured to be connected to a respiration tube and deliver the humidified positive pressure gas to the respiration tube.