Interface comprising a rolling nasal bridge portion

• Main Authors: Peter David Alexander Bearne, Bernard Tsz Lun Ip, Jonathan David Harwood, Craig Robert Prentice, Roheet Patel, Matthew Roger Stephenson, Tony William Spear, Gregory James Olsen, Mark Arvind McLaren, Leon Edward Evans, Brad Michael Howarth
• Format: Patent
• Language: English
• Published: 18.05.2016
• 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

An interface for positive pressure therapy includes a mask assembly 102, a headgear assembly and a connection port assembly. The mask assembly has a seal clip 112 supporting a seal member with an upper portion 154 movably connected to an integrated lower portion 156, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The upper portion may be reinforced by a band 174 forming an arch. A ratchet may be provided to lock the mask in a preferred position and the extent of rotation may be indicated by a colour gradient or numerical scale. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.