Patient interface

• Main Authors: Scheiner, Rupert Christian, Davidson, Aaron Samuel, Nga, Lemmy, Law, Kam Man
• Format: Patent
• Language: English
• Published: 25.11.2022
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

A patient interface may include a plenum chamber pressurisable to a therapeutic pressure, a seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways, a positioning and stabilising structure to provide a force to hold the seal-forming structure in a therapeutically effective position on the patient's head, and a vent structure to allow a continuous flow of gases exhaled by the patient from an interior of the plenum chamber to ambient, wherein the patient interface is configured to leave the patient's mouth uncovered during therapy, wherein the seal-forming structure comprises two lateral support regions, each located at a lateralmost side of the seal-forming structure, and a medial region positioned between the lateral support regions, the hole passing through the medial region, wherein the lateral support regions are thicker than the medial region and wherein the seal-forming structure further comprises two mid-lateral regions, each of the mid-lateral regions being positioned laterally outward from and adjacent to the medial region and medially inward from and adjacent to a corresponding one of the lateral support regions, the mid-lateral regions being thicker than the medial region and thinner than the lateral support regions, and the mid-lateral regions being configured to contact the patient's alae in use, and wherein the seal-forming structure further comprises two corner regions configured to engage the patient's face at the subalare region, the corner regions being located where the medial region, the mid-lateral regions, and the lateral support regions converge.