Breathing mask and a sealing lip device for a breathing mask

A breathing mask configured to be worn by a person and deliver respiratory gas to the person's airways under increased pressure compared to ambient pressure, the breathing mask comprising:

• a relatively rigid shell;
• a plurality of fixing devices configured to attach headgear to the breathing mask at fixed locations relative to the relatively rigid shell;
• and
• an elastomeric sealing lip mounted to the relatively rigid shell, the sealing lip being more flexible than the relatively rigid shell and surrounding a receiving opening configured to receive at least a nose tip region of the person,
• wherein the elastomeric sealing lip comprises a contact zone configured to bear against the person's face,
• wherein the sealing lip is configured so that when the contact zone bears against the person's face, a) a portion of the contact zone at a nose bridge region of the sealing lip bears against the person's nose bridge, b) a portion of the contact zone at a first nostril region of the sealing lip is adjacent one of the person's nostrils c) a portion of the contact zone at a second nostril region of the sealing lip is adjacent the other of the person's nostrils and d) a portion of the contact zone at an upper lip region of the sealing lip bears against the person's upper lip,
• wherein the nose bridge region comprises a first zone of lower load-bearing capability, the first nostril region comprises a first zone of higher load-bearing capability and the second nostril region comprises a second zone of higher load-bearing capability, the first zone of lower load-bearing capability having a lower load-bearing capability than the first and second zones of higher load-bearing capability,
• wherein in each of the first and second zones of higher load-bearing capability, the contact zone includes regions of increased elastomer thickness that are thicker than an elastomer thickness of the contact zone in the nose bridge region and the upper lip region, and
• wherein the contact zone is configured to pivot about an articulation axis that extends through the first and second nostril regions.

A patient interface configured to be worn by a person and deliver respiratory gas to the person's airways under increased pressure compared to ambient pressure, the patient interface comprising:

• a relatively rigid shell;
• a plurality of fixing devices configured to attach headgear to the breathing mask at fixed locations relative to the relatively rigid shell;
• and
• an elastomeric sealing lip mounted to the relatively rigid shell, the sealing lip a) being more flexible than the relatively rigid shell, b) surrounding a receiving opening configured to receive at least a nose tip region of the person and c) comprising a contact zone configured to bear against the person's face,
• wherein a lower load-bearing region of the sealing lip is positioned relative to an opposing region so that the receiving opening is between the lower load-bearing region and the opposing region,
• wherein a first higher load-bearing region and a second higher load-bearing region of the sealing lip are positioned respectively between the first lower load-bearing region and the opposing region,
• wherein the first higher load-bearing region is positioned relative to the second higher load-bearing region so that the receiving opening is between the first and second higher load-bearing region,
• wherein the first and second higher load-bearing regions are configured to bear a higher load than the lower load-bearing region, and
• wherein in each of the first and second higher load-bearing regions, the contact zone includes regions of increased elastomer thickness that are thicker than an elastomer thickness of the contact zone in the lower load-bearing region and the opposing region.