PATIENT INTERFACE AND METHOD FOR MAKING SAME

• Main Authors: WAGNER, Stewart Joseph, BARLOW, Adam Francis, SMITH, Christopher James, HO, Hason Tin-Yan, BARBARA, Anthony Paul, JOURDAN, Ralph, SMART, Gregory Scott, SHANMUGA SUNDARA, Shiva Kumar, SCHEINER, Rupert Christian, GOLDSPINK, Lachlan Richard, MAY, Frederick Arlet, HENRY, Robert Edward, HITCHCOCK, William Laurence, NGA, Lemmy, FORRESTER, Martin, TAN, Chia IK, WELLS, Alicia Kristianne, EDWARDS, Craig David, RUMMERY, Gerard Michael, HASKARD, Kirrily Michele, LEE, Murray Williams
• Format: Patent
• Language: English; French; German
• Published: 05.06.2024
• 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

The present invention discloses a cushion member for a patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways, the cushion member comprising: at least one retaining structure for repeatable engagement with and disengagement from a frame member; and a seal-forming structure having a nasal opening to provide pressurized gas to both nares of the patient and a plenum chamber formed in one piece, the seal-forming structure configured to seal around an inferior periphery of the patient's nose, and the seal-forming structure and plenum chamber permanently connected to the at least one retaining structure; wherein the seal-forming structure is made from a first material and the at least one retaining structure is made from a second material with different mechanical characteristics from the first material and the second material is more rigid than the first material; and wherein an increase in air pressure within the cushion member causes a sealing force between the seal-forming structure and the frame member to increase.