A wearable device (8,60,70,86) structured to exert a contact pressure between the wearable device and a skin surface of a wearer, such as a patient interface device for delivering a flow of breathing gas to a patient, includes a first member (18,72,96), such as a faceplate member, structured to have a first pressure applied thereto, a contact member (14,74), such as a sealing cushion, structured to exert the contact pressure against the skin surface in response to the first pressure, and a support member (20,62,78) positioned between the first member and the contact member, the support member including a plurality of compression members (40,52,54,64,84), wherein each of the compression members is structured to buckle in response to a compression force having at least a first predetermined level being applied to the support member.

An interface pillow for insertion into a nostril of a user for delivering positive air pressure (e.g. during sleep) has a pliable member having a body. The body has an insertion end and a distal sealing end that includes a seal for interfacing with a cannula. An insertion bulge extends from the body limiting an insertion distance into the user's nostrils. An insertion area of the body extends between the insertion end and the insertion bulge, the sides of which angle inwardly towards the insertion end at an angle. The outer shape of the insertion area is flattened on one side for interfacing with a septum of a nose, and an upper interface area of the outer shape of the insertion area is narrower than a lower interface area of the outer shape of the insertion area to conform to a shape of a nostril of the nose.

A mask system including a frame module and a cushion module provided to the frame module and adapted to form a seal with the patient's face. The cushion module includes a main body defining a breathing chamber and adapted to interface with the frame module and a cushion adapted to form a seal with the patient's face. The main body and the cushion are comolded with one another.

An apparatus for administering a respirable gas to an individual includes a body receivable against a facial area for enclosing a respiratory organ, a vacuum hose, and a scavenger valve. The body is cup shaped, and includes a first side and a second side. An inhalation member extends from the first side of the body. An exhalation member extends from the second side of the body. The vacuum hose is for coupling a vacuum source to the exhalation member. The scavenger valve is coupled to the vacuum hose. The inhalation member is for administering respirable gas into the body, the exhalation member is for exhausting exhaust gas from the body into the vacuum hose, and the scavenger valve is for exhausting exhaust gas therethrough from the vacuum hose to an atmosphere.

A respiratory mask for continuous positive airway pressure treatment includes a cushion adapted to be positioned against the face of a patient. The cushion is configured in a gasket arrangement around an entrance to the airways of the patient. The cushion is constructed from a polyurethane foam and has a thickness of greater than about 5 mm.

A patient interface including a seal-forming structure with an elastomeric membrane that has at least one hole such that the flow of air at a therapeutic pressure is delivered to at least an entrance to the patients nares and/or an entrance to the patients mouth. The seal-forming structure is constructed and arranged to maintain the therapeutic pressure in a cavity of a plenum chamber throughout the patients respiratory cycle, in use. The elastomeric membrane includes a first portion that is held in a relaxed state and a second portion that is held in a taut state. The elastomeric membrane is molded to include a three-dimensional shape that has multiple curvatures. The at least one hole includes an arch on a lateral side of the at least one hole, and is in a relaxed state before use. The arch is configured to move to a substantially taut state during use.

The present invention relates to a mask bead for a patient interface, comprising a nose bridge region, at least one side region, a base region, a mask bead attachment, and a bearing region on the patient. The bearing region extends from the side regions and the base region and also the nose bridge region to an opening and is designed as a sealing lip which frames the central opening which serves at least for the introduction of the nose of the patient. The mask bead is formed from at least one elastic material and comprises at least one support structure in the mask bead, which support structure is designed to in part face the bearing region and to in part face the mask bead attachment.

A cushion for a respiratory mask assembly includes a frame-connecting portion, a face-contacting portion, and a gusset portion disposed between and joining the frame-connecting and face-contacting portions. The gusset portion includes at least one perimetrical region which includes a laterally projecting exterior gusset section and a laterally projecting interior gusset section.

An interface for positive pressure therapy includes a mask assembly and a headgear assembly. The mask assembly comprises a mask seal that is adapted to underlie the nose. The mask seal extends up the lateral sides of the nose. The mask seal has a primary seal below the nose and a secondary seal alongside the nose.

A patient interface includes a sealing arrangement adapted to provide an effective seal with the patient's nose, an inlet conduit arrangement adapted to deliver breathable gas to the sealing arrangement, and a cover that substantially encloses the sealing arrangement and/or the inlet conduit arrangement.