US 12,478,750 B2
Vents for patient interfaces
Muditha Pradeep Dantanarayana, Sydney (AU); Michael Christopher Hogg, Sydney (AU); and Stewart Joseph Wagner, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on May 31, 2022, as Appl. No. 17/828,690.
Claims priority of application No. 2021901623 (AU), filed on May 31, 2021; and application No. 2021902448 (AU), filed on Aug. 9, 2021.
Prior Publication US 2022/0401681 A1, Dec. 22, 2022
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01)
CPC A61M 16/0616 (2014.02) [A61M 16/0666 (2013.01); A61M 16/0816 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A vent for a respiratory therapy system, the vent allowing for a vent flow of gases exhaled by a patient receiving a flow of breathable gas from a volume interior to the respiratory therapy system to ambient, the vent comprising:
a vent body having formed therein a plurality of slots, the plurality of slots together allowing the vent flow of exhaled gases from the volume to ambient,
wherein each of the plurality of slots has an inlet and an outlet, a length extending perpendicularly between the inlet and the outlet, a width and a height, each of the width and the height extending in a direction perpendicular to the length,
wherein the vent body is configured such that, for each of the plurality of slots, a ratio of the length to the height is at least 10 and a ratio of the width to the height is at least 15, and
wherein the vent body is configured such that the plurality of slots are arranged such that the widths of the plurality of slots extend in mutually parallel directions.