Abstract: In an example, a mask includes a containment wall, a gasket, a nasal access in the containment wall, an inlet, and an outlet. The containment wall includes an inner surface, an outer surface opposite the inner surface, and a peripheral edge at an interface between the inner surface and the outer surface. The gasket is at the peripheral edge of the containment wall. The gasket can conform to the face of a wearer. The containment wall and the gasket define a chamber between the inner surface of the containment wall and the face of the wearer when the mask is worn by the wearer. The nasal access opening is aligned with a nose of the wearer when the mask is worn by the wearer. The inlet can receive a gas into the chamber. The outlet can exhaust out of the chamber the gas and aerosols exhaled by the wearer.

Abstract: The present disclosure provides a balloon dilation catheter that includes a handle (102), a substantially rigid inner guide member (108) coupled to the handle, a shaft (118) arranged over the inner guide member, a balloon (120) coupled to the inner guide member, and a polymer ball tip (122) positioned at a distal end of the balloon. To treat a sinus drainage pathway of a subject using the balloon dilation catheter, the substantially rigid inner guide member is positioned into the drainage pathway of the sinus of the subject via a nasal passageway. The balloon is then inflated to expand or otherwise remodel the drainage pathway.

Abstract: An evacuation sheath assembly and method of reducing or removing a blockage within a vessel without permitting embolization of particulate matter is provided. The evacuation sheath assembly includes a first elongate tubular member, having proximal and distal ends and a main lumen configured to be placed in fluid communication with a blood vessel. An expandable member is provided on a distal portion of the tubular member and is configured to form a seal with the blood vessel. The evacuation assembly further includes a second elongate tubular member having proximal and distal ends and an inflation lumen configured to be placed in fluid communication with the expandable member and a gas inflator. The gas inflator includes a high pressure gas source and a mechanism for regulating the pressure of the gas delivered by the gas inflator.