Therapy system for respiratory-related disorders, and patient interface and headgear for use in same

A patient interface for delivery of a flow of pressurised air from an air circuit to an entrance of a patient's airways, the patient interface comprising:

• a plenum chamber;
• a seal-forming structure provided to the plenum chamber;
• a first positioning and stabilising structure configured to provide a force to hold the seal-forming structure in a therapeutically effective position on a patient's head in use, wherein the first positioning and stabilising structure comprises at least one gas delivery tube constructed and arranged to contact, in a first use configuration, at least a region of the patient's head superior to the patient's otobasion superior, wherein a portion of the at least one gas delivery tube configured to, in use, be positioned superior to the patient's otobasion superior is provided with a first connection port to receive the flow of air from the air circuit and to deliver the flow of air to the entrance of the patient's airways via the seal-forming structure in the first use configuration, wherein the at least one gas delivery tube is connected, in the first use configuration, to a port on a side of the plenum chamber and is constructed and arranged to position and stabilise the seal-forming structure in the therapeutically effective position;
• and
• a second positioning and stabilising structure configured to provide a force to hold the seal-forming structure in the therapeutically effective position on the patient's head in use, wherein, in a second use configuration, the second positioning and stabilising structure is constructed and arranged to contact at least a region of the patient's head superior to the patient's otobasion superior;
• a second connection port to receive the flow of air from the air circuit, wherein the second connection port is provided to an anterior side of the plenum chamber, wherein, in the second use configuration, the second connection port is configured to receive the flow of air from the air circuit to deliver the flow of air to the seal-forming structure in use;
• and
• a vent structure or stop configured to connect to the second connection port in the first use configuration.

A patient interface for delivery of a flow of pressurised air to an entrance of a patient's airways, the patient interface comprising:

• a plenum chamber;
• a seal-forming structure provided to the plenum chamber;
• and
• a positioning and stabilising structure configured to provide a force to hold the seal-forming structure in a therapeutically effective position on a patient's head in use, wherein the positioning and stabilising structure includes at least one gas delivery tube constructed and arranged to contact at least a region of the patient's head superior to the patient's otobasion superior, wherein a portion of the at least one gas delivery tube configured to, in use, be positioned superior to the patient's otobasion superior is provided with a first connection port to, in a first use configuration, receive the flow of air from an air circuit and to deliver the flow of air to the entrance of the patient's airways via the seal-forming structure, and wherein the at least one gas delivery tube is connected, in the first use configuration, to a port on a side of the plenum chamber and is constructed and arranged to position and stabilise the seal-forming structure in the therapeutically effective position,
• wherein an anterior side of the plenum chamber is provided with a second connection port to, in a second use configuration, receive the flow of air from the air circuit and to deliver the flow of air to the entrance of the patient's airways via the seal-forming structure, and
• wherein the patient interface further comprises one or more vent structures or stops, each vent structure or stop configured to connect to the first and/or second connection port, and wherein, in the first use configuration, the air circuit is connected to the first connection port and one of the one or more vent structures or stops is connected to the second connection port, and, in the second use configuration, the air circuit is connected to the second connection port and one of the one or more vent structures or stops is connected to the first connection port.

A patient interface for delivery of a flow of pressurised air from an air circuit to an entrance of a patient's airways, the patient interface comprising:

• a plenum chamber;
• a seal-forming structure provided to the plenum chamber;
• and
• a first positioning and stabilising structure configured to provide a force to hold the seal-forming structure in a therapeutically effective position on a patient's head in use, wherein the first positioning and stabilising structure includes at least one gas delivery tube constructed and arranged to contact, in a first use configuration, at least a region of the patient's head superior to the patient's otobasion superior, wherein a portion of the gas delivery tube configured to, in use, be positioned superior to the patient's otobasion superior in the first use configuration is provided with a connection port to receive the flow of air from the air circuit and to deliver the flow of air to the entrance of the patient's airways via the seal-forming structure, and wherein the at least one gas delivery tube has an inferior end configured to be connected to a side of the plenum chamber and constructed and arranged to position and stabilise the seal-forming structure in the therapeutically effective position in the first use configuration;
• and
• a second positioning and stabilising structure configured to provide a force to hold the seal-forming structure in a therapeutically effective position on a patient's head in use, the second positioning and stabilising structure including at least one strap constructed and arranged to be connected to headgear attachment points of the plenum chamber and to contact, in a second use configuration, at least a region of the patient's head superior to the patient's otobasion superior in use,
• wherein the second positioning and stabilising structure is selectively provided as part of the patient interface such that, in the first use configuration, the at least one strap is not connected to the headgear attachment points and is not configured to contact the patient's head in use,
• wherein the inferior end of the at least one gas delivery tube is configured to connect to the side of the plenum chamber in a manner such that the first positioning and stabilising structure is moveable between a first orientation in the first use configuration and a second orientation in the second use configuration, and
• wherein in the second use configuration, the connection port is configured to be positioned inferior to the patient's otobasion superior in use.

A patient interface for delivery of a flow of pressurised air to an entrance of a patient's airways, the patient interface comprising:

• a plenum chamber;
• a seal-forming structure provided to the plenum chamber;
• and
• a positioning and stabilising structure configured to provide a force to hold the seal-forming structure in a therapeutically effective position on a patient's head in use, wherein the positioning and stabilising structure includes at least one gas delivery tube constructed and arranged to contact at least a region of the patient's head superior to the patient's otobasion superior, wherein a portion of the at least one gas delivery tube configured to, in use, be positioned superior to the patient's otobasion superior is provided with a first connection port to, in a first use configuration, receive the flow of air from an air circuit and to deliver the flow of air to the entrance of the patient's airways via the seal-forming structure, and wherein the at least one gas delivery tube is connected, in the first use configuration, to a port on a side of the plenum chamber and is constructed and arranged to position and stabilise the seal-forming structure in the therapeutically effective position,
• wherein an anterior side of the plenum chamber is provided with a second connection port to, in a second use configuration, receive the flow of air from the air circuit and deliver the flow of air to the entrance of the patient's airways via the seal-forming structure, and
• wherein the first and second connection ports are each configured with a respective closure, wherein each closure is arranged to be moveable from a closed condition to an open condition, wherein, when in the open condition each closure allows delivery of the flow of air to the entrance of the patient's airways, and wherein, when in the first use configuration, the closure of the first connection port is in an open condition and the closure of the second connection port is in a closed condition, and wherein, when in the second use configuration, the closure of the first connection port is in a closed condition and the closure of the second connection port is in an open condition.