Abstract: A patient interface of a respiratory therapy system is provided, and includes a mask body; a mask seal secured to the mask body and configured to form a seal with the user's face, at least around the user's mouth; the mask body and mask seal being arranged to define an interior breathing chamber of the patient interface; and an inlet to the breathing chamber configured to receive a flow of breathable gases into the breathing chamber. To assist in allowing a user to speak clearly whilst wearing/using the patient interface, a user actuatable speech valve is provided on the patient interface and is operable to selectively occlude and open a speech flow path from the breathing chamber to atmosphere when the user wishes to speak.

Abstract: A patient interface comprises an opening for receiving a flow of gas from a conduit and an adaptable connector system for connecting at least two different types of conduit with the opening. The adaptable connector is permanently mounted with the patient interface so it cannot be lost and is able to swing into alignment with the opening, thereby providing a different connection end to be compatible with a second or further type of conduit connection end.

Abstract: There is provided a user interface comprising: a. a mask body; b. a sealing cushion connected to the mask body and configured to seal around a patient's nose and/or mouth; wherein the mask body and sealing cushion together define an interior chamber of the user interface; c. a breathing gas delivery inlet provided in the mask body and configured to receive a breathing gas flow from a gas source; and d. at least one non-sealing nasal prong in the interior chamber. The user interface further comprising a breathing gas flow director configured to split the breathing gas flow into two flow paths, such that a portion of the breathing gas flow is delivered along a first flow path from the inlet into the interior chamber to pressurise the interior chamber, and such that a portion of the breathing gas flow is delivered along a second flow path from the inlet through the nasal prong.

Abstract: A patient interface of a respiratory therapy system is provided, and includes: a. a mask body; b. a mask seal secured to the mask body and configured to form a seal with the user's face, at least around the user's mouth; the mask body and mask seal being arranged to define an interior breathing Chamber of the patient interface; and c. an inlet to the breathing chamber configured to receive a flow of breathable gases into the breathing chamber. To assist in allowing a user to speak clearly whilst wearing/using the patient interface, a user actuatable speech valve is provided on the patient interface and is operable to selectively occlude and open a speech flow path from the breathing chamber to atmosphere when the user wishes to speak.

Abstract: There is provided a user interface comprising: a. a mask body; b. a sealing cushion connected to the mask body and configured to seal around a patient's nose and/or mouth; wherein the mask body and sealing cushion together define an interior chamber of the user interface; c. a breathing gas delivery inlet provided in the mask body and configured to receive a breathing gas flow from a gas source; and d. at least one non-sealing nasal prong in the interior chamber. The user interface further comprising a breathing gas flow director configured to split the breathing gas flow into two flow paths such that a portion of the breathing gas flow is delivered along a first flow path from the inlet into the interior chamber to pressurise the interior chamber, and such that a portion of the breathing gas flow is delivered along a second flow path from the inlet through the nasal prong.

Abstract: A pressure regulating or pressure relief device comprises an inlet and an outlet chamber with an outlet. The inlet is in fluid communication with the outlet chamber. A valve seat is located between the inlet and the outlet. A valve member is biased to seal against the valve seat, and displaces from the valve seat by an inlet pressure at the inlet increasing above a pressure threshold to allow a flow of gases from the inlet to the outlet via the outlet chamber. The flow of gases through the outlet causes an outlet pressure in the outlet chamber to act on the valve member together with the inlet pressure to displace the valve member from the valve seat.

Abstract: A pressure regulating or pressure relief device comprises an inlet and an outlet chamber with an outlet. The inlet is in fluid communication with the outlet chamber. A valve seat is located between the inlet and the outlet. A valve member is biased to seal against the valve seat, and displaces from the valve seat by an inlet pressure at the inlet increasing above a pressure threshold to allow a flow of gases from the inlet to the outlet via the outlet chamber. The flow of gases through the outlet causes an outlet pressure in the outlet chamber to act on the valve member together with the inlet pressure to displace the valve member from the valve seat.

Abstract: A headgear connector is provided for connecting a user interface to a headgear strap. The headgear connector comprises a headgear receiving passage configured to receive a headgear strap from a first direction and to enable the headgear strap to loop back onto itself in a second direction substantially opposed to the first direction, and a gripping element configured to grip a portion of the headgear strap to secure the headgear strap with respect to the user interface. Headgear is also provided.

Abstract: A pressure regulating or pressure relief device comprises an inlet and an outlet chamber with an outlet. The inlet is in fluid communication with the outlet chamber. A valve seat is located between the inlet and the outlet. A valve member is biased to seal against the valve seat, and displaces from the valve seat by an inlet pressure at the inlet increasing above a pressure threshold to allow a flow of gases from the inlet to the outlet via the outlet chamber. The flow of gases through the outlet causes an outlet pressure in the outlet chamber to act on the valve member together with the inlet pressure to displace the valve member from the valve seat.

Abstract: A patient interface comprises an opening for receiving a flow of gas from a conduit and an adaptable connector system for connecting at least two different types of conduit with the opening. The adaptable connector is permanently mounted with the patient interface so it cannot be lost and is able to swing into alignment with the opening, thereby providing a different connection end to be compatible with a second or further type of conduit connection end.

Abstract: A patient interface of a respiratory therapy system is provided, and comprises: a. a mask body; b. a mask seal secured to the mask body and configured to form a seal with the user's face, at least around the user's mouth; the mask body and mask seal being arranged to define an interior breathing chamber of the patient interface; and c. an inlet to the breathing chamber configured to receive a flow of breathable gases into the breathing chamber. To assist in allowing a user to speak clearly whilst wearing/using the patient interface, a user actuatable speech valve is provided on the patient interface and is operable to selectively occlude and open a speech flow path from the breathing chamber to atmosphere when the user wishes to speak.

Abstract: A conduit connector assembly is provided for a respiratory therapy apparatus and configured to connect a patient interface to a gas delivery conduit. The assembly comprises: a conduit comprising a first flow port configured to be connected to the patient interface, and a second flow port configured to be connected to the gas delivery conduit, and a supplementary flow port; and a first valve port configured to be closed or opened by a valve flap. The conduit and the valve flap selectively provide an inspiratory flow path from the second flow port of the conduit to the first flow port of the conduit; and an expiratory flow path from the first flow port of the conduit to the supplementary flow port via the first valve port. A supplementary gas flow path is provided between the first and/or second flow ports and the supplementary flow port via a supplementary valve port.

Abstract: There is provided a user interface comprising: a. a mask body; b. a sealing cushion connected to the mask body and configured to seal around a patient's nose and/or mouth; wherein the mask body and sealing cushion together define an interior chamber of the user interface; c. a breathing gas delivery inlet provided in the mask body and configured to receive a breathing gas flow from a gas source; and d. at least one non-sealing nasal prong in the interior chamber. The user interface further comprising a breathing gas flow director configured to split the breathing gas flow into two flow paths such that a portion of the breathing gas flow is delivered along a first flow path from the inlet into the interior chamber to pressurise the interior chamber, and such that a portion of the breathing gas flow is delivered along a second flow path from the inlet through the nasal prong.