RESPIRATORY MASK ARRANGEMENT AS WELL AS HEAD BAND ARRANGEMENT AND RESPIRATORY GAS EVACUATION DEVICE FOR A RESPIRATORY MASK

摘要

The invention relates to a respiratory mask arrangement that can be used in the framework of CPAP therapy for treating sleep-related breathing disturbances, for example. Also disclosed are a head band arrangement for a respiratory mask and a respiratory gas evacuation device for a respiratory mask arrangement, which is used for discharging CO2-loaded respiratory gas. The aim of the invention is to create solutions by means of which evacuation of CO2-loaded respiratory gas from the interior of a respiratory mask arrangement can be reliably and advantageously ensured. According to a first embodiment of the invention, said aim is achieved by a respiratory mask arrangement comprising a sealing lip device to be placed on the facial surface of a mask user, a covering device which defines a mask interior in cooperation with the sealing lip device, and a respiratory gas conduit unit for delivering respiratory gas to said mask interior that is defined by the covering device and is connected to the nostril and/or oral opening of the mask user. At least some sections of the covering device are embodied as an air-permeable structure. According to another embodiment of the invention, said aim is also achieved by a respiratory mask arrangement comprising an arched member, a sealing lip device to be placed on the facial surface of a mask user, and a respiratory gas conduit unit for delivering respiratory gas to a mask interior that is delimited by the arched member and is connected to the nostril and/or oral opening of the mask user. An air directing path which extends from a respiratory gas inlet area to a respiratory gas outlet area is defined in cooperation with the arched member, at least some sections of said air directing path extending along the wall that delimits the arched member.