Patent ID: 11931514
Assignee: RESMED PTY LTD
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A patient interface structure for delivery of respiratory therapy to a patient, the patient interface structure comprising:
a cushion assembly comprising:
an elastomeric cushion with a mouth seal portion configured to seal around the patient's mouth and a nasal seal portion configured to seal against at least an underside of the patient's nose, the mouth seal portion surrounding a mouth cushion aperture through which the patient's mouth receives pressurized gas in use; and
a frame connecting portion that is mounted to the elastomeric cushion and is more rigid than the elastomeric cushion, the elastomeric cushion and the frame connecting portion combining to form at least part of a plenum chamber, the frame connecting portion having an opening;
a frame with a plurality of headgear attachment points, the frame being configured to snap onto the frame connecting portion and comprising a rearwardly facing surface that faces the cushion assembly when connected;
an air inlet defining an air inlet passage integrally formed with the frame, the air inlet passage extending from a first end to a second end, the first end being configured to attach to an air delivery tube or an air delivery connector, the second end being configured to attach to the opening, the first and second ends of the air inlet passage being oriented so that the pressurized gas enters the first end of the air inlet passage in a first direction and exits the second end of the air inlet passage in a second direction that is different from the first direction; and
a positioning stabilizing structure comprising at least one headgear strap and being configured to engage the headgear attachment points on the frame, the positioning and stabilizing structure being configured to support the cushion assembly and the frame on the patient's face,
wherein the second end of the air inlet passage is positioned behind the frame when viewed from an anterior side of the frame.