SEAL-FORMING STRUCTURE, POSITIONING AND STABILIZING STRUCTURE AND DIFFUSER VENT FOR PATIENT INTERFACE

• Main Authors: DUNN, Jessica Lea, HARTONO, Marvin Sugi, EBERL, Lorenz, TRUSCOTT, Michael Kenneth, OZOLINS, Angelene Marie, TEE, Min Li, LEE, Chuan Foong, SINGH, Bishavjot, PARKER, Christopher Daniel, DAY, Shannon, EDWARDS, Craig David, ONG, Chee Keong, GREIG, Nigel Paul, MANJUNATH, Vinay
• Format: Patent
• Language: English
• Published: 22.06.2023
• 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 to deliver a flow of air at a positive pressure with respect to ambient air pressure to an entrance to the patient's airways to ameliorate sleep disordered breathing includes a frame assembly and a cushion assembly configured to removably and repeatably connect to the frame assembly. The frame assembly and the cushion assembly form at least part of a plenum chamber pressurizable to a therapeutic pressure. The cushion assembly comprises a one-piece construction including a seal-forming structure configured to form a seal with a region of a patient's face surrounding the entrance to the patient's airways and a frame connection structure configured to removably and repeatably connect the cushion assembly to the frame assembly. The seal-forming structure comprises a first elastomeric material and the frame connection structure comprises a second elastomeric material, the first elastomeric material comprising a lower durometer or hardness than the second elastomeric material.