US Patent 11842654 Airway resistance device

An airway resistance device providing reliable and constant airway resistance for a given position of an occlusion mechanism that may be used in a lung simulator device in order to allow the simulation of a number of medical conditions which impacts the airflow in the airways. The airway resistance device includes one or more laminar flow channels and a variable occlusion mechanism that retains the laminar flow characteristics, such that resistance is constant for a given occlusion configuration.