Patient interface systems

A patient interface structure for delivery of respiratory therapy to a patient, comprising:

• a front plate;
• a mouth sealing portion forming at least part of a breathing chamber and attached to the front plate, the mouth sealing portion being configured to seal around the patient's mouth;
• a nasal sealing portion positioned at on a superior side of the mouth sealing portion and configured to seal around the patient's nasal airways, the nasal sealing portion being configured to avoid contact with a nasal bridge region of the patient's nose in use;
• a pair of nares support portions in the form of raised portions on the superior side of the mouth sealing portion, the nares support portions supporting respective lateral sides of the nasal sealing portion;
• and
• a thinned region adjacent the nares support portions, the thinned region being configured to permit movement of the nasal sealing portion relative to the mouth sealing portion,
• wherein the nasal sealing portion is more flexible than the nares support portions,
• wherein a central region of the nasal sealing portion is suspended between the nares support portions, and
• wherein the nares support portions are configured to aid in positioning the nasal sealing portion against the flares of the patient's nostrils, in use.

A patient interface structure for delivery of respiratory therapy to a patient, comprising:

• a front plate;
• a cushion attached to the front plate to form a breathing chamber with the front plate, the cushion comprising:
• mouth portion configured to seal around the patient's mouth;
• a nasal portion positioned on a superior side of the mouth portion and configured to seal around the patient's nasal airways;
• a pair of nares support portions in the form of raised portions on a superior side of the mouth portion, the nares support portions supporting respective lateral sides of the nasal portion;
• and
• a thinned region on a superior side of the mouth portion that is configured to permit movement of the nasal portion relative to the mouth portion,
• wherein the nasal portion is more flexible than the nares support portions,
• wherein a central region of the nasal portion is suspended between the nares support portions,
• wherein the nares support portions are configured to aid in positioning the nasal portion against the flares of the patient's nostrils, and
• wherein the nasal portion is configured to avoid contact with a nasal bridge region of the patient's nose.