Patient interface and method for making same

• Main Authors: Wells, Alicia, Haskard, Kirrily Michele, Smith, Christopher James, Nga, Lemmy, Wagner, Stewart, Henry, Robert Edward, Barbara, Anthony, Smart, Gregory Scott, Scheiner, Rupert, Forrester, Martin, Shanmuga Sundara, Shiva Kumar, Lee, Murray, Ho, Hason Tin-Yan, Barlow, Adam, May, Frederick Arlet, Jourdan, Ralph, Goldspink, Lachlan, Rummery, Gerard Michael, Hitchcock, William Laurence, Tan, Chia Ik, Edwards, Craig
• Format: Patent
• Language: English
• Published: 30.07.2021
• 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 pressurized gas to a patient to treat sleep disordered breathing, the patient interface comprising: a seal-forming structure having a nasal opening to provide pressurized gas to both nares of the patient, and the seal-forming structure being configured to seal around an inferior periphery of the patient's nose and at or near the tip of the patient's nose; a plenum chamber formed in one piece with the seal-forming structure, the plenum chamber including a plenum connection region; a frame releasably attachable to the plenum connection region; a connection port formed in one piece with the frame; and a gas delivery tube permanently joined to the frame at the connection port, the gas delivery tube comprising a helical coil comprised of a plurality of adjacent coils, each coil separated by a width and having an outer surface forming a coil diameter, wherein the seal-forming structure comprises a pair of protruding ends extending symmetrically about the nasal opening, each protruding end configured to seal against a region of the patient's face where the ala of the patient's nose joins to the patient's face, wherein the seal-forming structure comprises a pair of protruding end support sections, each of the pair of protruding end support sections extending into a gas chamber formed at least in part by the seal-forming structure and the plenum chamber to support a corresponding protruding end, and wherein each protruding end support section comprises a solid projection extending into the gas chamber in cantilever fashion.