Mask System with Improved Sealing Properties for Administering Nasal Positive Airway Pressure Therapy

摘要

An improved mask sealing apparatus is described for use in nasal positive pressure therapies such as nasal CPAP (continuous positive airway pressure) and nasal ventilation for treatment of such disorders as sleep apnea, ventilatory insufficiency and complex sleep apnea. The device most importantly provides a means for formation of 2 sealing zones when fitted to a user's face. The first is formed at or within the nares of a user, while a second sealing zone is formed around a user's nose. The cushion so formed may be constructed as a thick walled profile or a thin walled profile using a materials of appropriate durometer. Various configurations of the nares and peri-nasal sealing components are further described.