Apparatus for humidifying a respiratory gas

摘要

A humidifier assembly for a CPAP includes a base housing with a gas inlet configured to receive respiratory gas from the CPAP unit. The base housing includes a first connecting device located at a sidewall of the base housing and configured to directly, removably connect the base housing to the CPAP unit. The base housing also includes a second connecting device configured to be coupled to an air delivery hose. The humidifier assembly further includes a liquid storage container that is removably received in the base housing. The liquid storage container includes a liquid storage space configured to store liquid and a humidifying region configured to receive the respiratory gas from the gas feed opening and receive a partial amount of the liquid stored in the liquid storage space to enrich the respiratory gas with moisture.

主权项

1. A humidifier assembly for a continuous positive airway pressure (CPAP) unit, the humidifier assembly comprising:
a base housing with a gas inlet configured to receive respiratory gas from the CPAP unit, the base housing comprising a) a first connecting device located at a sidewall of the base housing and configured to directly, removably connect the base housing to the CPAP unit and b) a second connecting device configured to be coupled to an air delivery hose; and a liquid storage container that is removably received in the base housing, wherein the first connecting device comprises:
a gas inlet connecting portion located at the base housing gas inlet and configured to directly and pneumatically connect to a corresponding gas outlet connecting portion on the CPAP unit; andan electrical connecting device located below the gas inlet connecting portion and configured to connect to a corresponding electrical connecting device of the CPAP unit, and wherein the liquid storage container comprises:
a gas feed opening in a side wall of the liquid storage container, the gas feed opening being configured to pneumatically connect to the gas inlet of the base housing when the liquid storage container is fully received by the base housing;a liquid storage space configured to store liquid; anda humidifying region configured to receive the respiratory gas from the gas feed opening and receive a partial amount of the liquid stored in the liquid storage space to enrich the respiratory gas with moisture,wherein the liquid storage container is configured so that when enough liquid in the humidifying region evaporates into the respiratory gas to lower the liquid in the humidifying region below a predetermined level, air escapes from the humidifying region to the liquid storage space and the partial amount of the liquid stored in the liquid storage space is transferred to the humidifying region.