Mask system

A mask system for use between a patient and a device to deliver a breathable gas to the patient, the mask system comprising:

• a mouth cushion formed of silicone and structured to sealingly engage around an exterior of a patient's mouth in use;
• a pair of nasal prongs releasably attached to a side wall of the mouth cushion and structured to sealingly communicate with nasal passages of a patient's nose in use;
• and
• a headgear assembly to maintain the mouth cushion and the nasal prongs in a desired position on the patient's face,
• wherein each prong includes a base portion provided to the mouth cushion, a head portion to seal with the patient's nose, and a stalk to interconnect the base portion and the head portion,
• wherein each prong includes a first trampoline-like base provided between the head portion and the stalk and a second trampoline-like base provided between the stalk and the base portion,
• wherein the first trampoline-like base allows an upper end of the stalk to flex at least partly into the head portion in use and the second trampoline-like base allows a lower end of the stalk to flex at least partly into the base portion in use so as to allow self-adjustment of a height of the head portion relative to the base portion in use.

A mask system for use between a patient and a device to deliver a breathable gas to the patient, the mask system comprising:

• a substantially rigid frame including one or more vent openings;
• a mouth cushion provided to the frame, the mouth cushion structured to sealingly engage around an exterior of a patient's mouth in use, the mouth cushion including a side wall, a undercushion extending away from the side wall, and a membrane provided to substantially surround the undercushion and provide a sealing structure;
• a pair of nasal prongs formed separately from and selectively attachable to and detachable from the mouth cushion, said nasal prongs being adapted to sealingly communicate with respective nasal passages of a patient in use and including a bridging strap to interconnect the pair of nasal prongs, each said nasal prong including a base having an annular recess that is secured within a respective opening provided to the side wall of the mouth cushion, a head to seal with the patient's nose, and a column to interconnect the base and the head;
• a swivel elbow provided to the frame to deliver breathable gas to the patient;
• and
• a headgear assembly to maintain the mouth cushion and the nasal prongs in a desired position on the patient's face, the headgear assembly including upper straps adapted to extend over the patient's ears and lower straps adapted to extend below the patient's ears, and the upper and lower straps include connectors that interface with upper and lower headgear connector portions provided on each side of the frame, the straps being length adjustable via a hook and loop fastening arrangement,
• wherein the nasal prongs and the bridging strap are formed of silicone,
• wherein each prong includes a first trampoline-like base provided between the head and the column and a second trampoline-like base provided between the column and the base,
• wherein the first trampoline-like base allows an upper end of the column to flex at least partly into the head in use and the second trampoline-like base allows a lower end of the column to flex at least partly into the base in use so as to allow self-adjustment of a height of the head relative to the base in use.

A mask system for use between a patient and a device to deliver a breathable gas to the patient, the mask system comprising:

• a substantially rigid frame;
• a mouth cushion provided to the frame, the mouth cushion structured to sealingly engage around an exterior of a patient's mouth in use;
• a pair of nasal prongs formed separately from and selectively attachable to and detachable from a side wall of the mouth cushion, said nasal prongs being adapted to sealingly communicate with respective nasal passages of a patient in use and including a bridging strap to interconnect the pair of nasal prongs,
• a swivel elbow provided to the frame to deliver breathable gas to the patient;
• and
• a headgear assembly to maintain the mouth cushion and the nasal prongs in a desired position on the patient's face,
• wherein the nasal prongs and the bridging strap are formed of silicone,
• wherein each prong includes a base portion provided to the mouth cushion, a head portion to seal with the patient's nose, and a stalk to interconnect the base portion and the head portion,
• wherein each prong includes a first trampoline-like base provided between the head portion and the stalk and a second trampoline-like base provided between the stalk and the base portion,
• wherein the first and second trampoline-like bases allow both rotation of the stalk and axial compression of the stalk into both the head portion and the base portion in use to adjust the height and angle of each prong to conform the patient's nose and attain seal.

A mask system for use between a patient and a device to deliver a breathable gas to the patient, the mask system comprising:

• a mouth cushion structured to sealingly engage around an exterior of a patient's mouth in use;
• and
• a pair of nasal prongs formed separately from and selectively attachable to and detachable from the mouth cushion,
• each prong including a base portion provided to the mouth cushion, a head portion to seal with the patient's nose, and a stalk to interconnect the base portion and the head portion,
• wherein each prong includes a first trampoline-like base provided between the head portion and the stalk,
• wherein the first trampoline-like base allows an upper end of the stalk to axially compress at least partly into the head portion in use, and the first trampoline-like base allows universal articulation of the head portion relative to the stalk even if the stalk is substantially fully compressed into the head portion, and
• wherein each prong includes a second trampoline-like base provided between the base portion and the stalk,
• wherein the second trampoline-like base allows a lower end of the stalk to axially compress at least partly into the base portion in use, and the second trampoline-like base allows universal articulation of the base portion relative to the stalk even if the stalk is substantially fully compressed into the base portion.