Abstract: A patient interface including a positioning and stabilizing structure that is configured to maintain a first seal-forming structure and a second seal-forming structure in a therapeutically effective position. The positioning and stabilizing structure comprises a frame coupled to the plenum chamber. The frame includes a central portion coupled to the plenum chamber outside of the cavity. The frame also includes a pair of arms that extend away from the central portion in a posterior direction past the second seal-forming structure. The pair of arms are more flexible than the central portion. The positioning and stabilizing structure also includes headgear straps coupled to the frame, which configured to provide a tensile force to the first seal-forming structure and to the second seal-forming structure into the patient's face via the frame.

Abstract: An apparatus for generating and providing a pressurized breathable gas to a patient's airways includes a respiratory pressure therapy (RPT) device having an engagement port pneumatically and electrically coupled to the RPT device, and an air delivery tube configured to engage the engagement port so as to pass a flow of breathable gas to a patient interface. The air delivery tube includes electric contacts associated with a heating and/or a sensing arrangement. The air delivery tube includes a locking collar rotatably movable between (1) an unlocked position to allow connection/disconnection of the air delivery tube to/from the engagement port, and (2) a locked position to releasably lock the air delivery tube to the engagement port. The air delivery tube is structured and arranged to, when the locking collar is rotated into the locked position, pneumatically connect to the engagement port and define an operational configuration of the apparatus.

Abstract: An apparatus for generating and providing a pressurized breathable gas to a patient's airways includes a respiratory pressure therapy (RPT) device having an engagement port pneumatically and electrically coupled to the RPT device, and an air delivery tube configured to engage the engagement port so as to pass a flow of breathable gas to a patient interface. The air delivery tube includes electric contacts associated with a heating and/or a sensing arrangement. The air delivery tube includes a locking collar rotatably movable between (1) an unlocked position to allow connection/disconnection of the air delivery tube to/from the engagement port, and (2) a locked position to releasably lock the air delivery tube to the engagement port. The air delivery tube is structured and arranged to, when the locking collar is rotated into the locked position, pneumatically connect to the engagement port and define an operational configuration of the apparatus.

Abstract: The invention relates to a connection member configured to connect an air circuit to a patient interface to convey a flow of pressurised breathable gas. The connection member comprises: first and second tube portions configured to connect to a patient interface and air circuit respectively; an anti-asphyxia valve (AAV); and a vent for venting gas exhaled by the patient to the ambient air. The vent is formed between the first and second tube portions. The first tube portion may have a substantially straight first longitudinal central axis and the second tube portion may have a substantially straight second longitudinal central axis that is substantially straight, the first tube portion and the second tube portion being arranged with the first longitudinal central axis substantially parallel to the second longitudinal central axis. The AAV is located in a position on the connection member closer to the patient interface than the vent.

Abstract: A patient interface including a positioning and stabilizing structure that is configured to maintain a first seal-forming structure and a second seal-forming structure in a therapeutically effective position. The positioning and stabilizing structure comprises a frame coupled to the plenum chamber. The frame includes a central portion coupled to the plenum chamber outside of the cavity. The frame also includes a pair of arms that extend away from the central portion in a posterior direction past the second seal-forming structure. The pair of arms are more flexible than the central portion. The positioning and stabilizing structure also includes headgear straps coupled to the frame, which configured to provide a tensile force to the first seal-forming structure and to the second seal-forming structure into the patient's face via the frame.

Abstract: A respiratory valve, such as a positive end expiratory pressure valve, permits pressure control for respiratory apparatus such as a ventilator or positive airway pressure device. The valve may include a flexible gas passage cover. The cover may be configured with a first side surface to operatively block and open an aperture of the gas passage at a valve seat to respectively prevent and permit gas flow through the aperture defined by the valve seat. The cover may include a second side surface opposite the first surface. The second surface may include at least one drop section forming a reduction in thickness of the cover between the first surface and the second surface. The first surface may include a coating to reduce friction of a membrane material of the first surface. The rim of the valve seat may comprise a variation in height relative the flexible cover.

Abstract: A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, including a breathable air outlet, an outside air inlet, and an pneumatic block module, wherein the pneumatic block module includes: a volute assembly including an inlet air passage, a mount for a blower and an outlet air passage; the blower being mounted in the mount such that an impeller of the blower is in a flow passage connecting the inlet air passage and the outlet air passage; a casing enclosing the volute assembly, wherein air passages within the casing connect air ports on the volute assembly, wherein the inlet air passage of the volute assembly is in fluid communication with the outside air inlet and the outlet air passage of the volute assembly is in fluid communication with the air outlet.

Abstract: An apparatus for generating and providing a pressurised breathable gas to a patient's airways includes a respiratory pressure therapy (RPT) device having an engagement port pneumatically and electrically coupled to the RPT device, and an air delivery tube configured to engage the engagement port so as to pass a flow of breathable gas to a patient interface. The air delivery tube includes electric contacts associated with a heating and/or a sensing arrangement. The air delivery tube includes a locking collar rotatably movable between (1) an unlocked position to allow connection/disconnection of the air delivery tube to/from the engagement port, and (2) a locked position to releasably lock the air delivery tube to the engagement port. The air delivery tube is structured and arranged to, when the locking collar is rotated into the locked position, pneumatically connect to the engagement port and define an operational configuration of the apparatus.

Abstract: A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, including a breathable air outlet, an outside air inlet, and an pneumatic block module, wherein the pneumatic block module includes: a volute assembly including an inlet air passage, a mount for a blower and an outlet air passage; the blower being mounted in the mount such that an impeller of the blower is in a flow passage connecting the inlet air passage and the outlet air passage; a casing enclosing the volute assembly, wherein air passages within the casing connect air ports on the volute assembly, wherein the inlet air passage of the volute assembly is in fluid communication with the outside air inlet and the outlet air passage of the volute assembly is in fluid communication with the air outlet.

Abstract: A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, including a breathable air outlet, an outside air inlet, and an pneumatic block module, wherein the pneumatic block module includes: a volute assembly including an inlet air passage, a mount for a blower and an outlet air passage; the blower being mounted in the mount such that an impeller of the blower is in a flow passage connecting the inlet air passage and the outlet air passage; a casing enclosing the volute assembly, wherein air passages within the casing connect air ports on the volute assembly, wherein the inlet air passage of the volute assembly is in fluid communication with the outside air inlet and the outlet air passage of the volute assembly is in fluid communication with the air outlet.

Abstract: A respiratory valve, such as a positive end expiratory pressure valve, permits pressure control for respiratory apparatus such as a ventilator or positive airway pressure device. The valve may include a flexible gas passage cover. The cover may be configured with a first side surface to operatively block and open an aperture of the gas passage at a valve seat to respectively prevent and permit gas flow through the aperture defined by the valve seat. The cover may include a second side surface opposite the first surface. The second surface may include at least one drop section forming a reduction in thickness of the cover between the first surface and the second surface. The first surface may include a coating to reduce friction of a membrane material of the first surface. The rim of the valve seat may comprise a variation in height relative the flexible cover.

Abstract: A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, including a breathable air outlet, an outside air inlet, and an pneumatic block module, wherein the pneumatic block module includes: a volute assembly including an inlet air passage, a mount for a blower and an outlet air passage; the blower being mounted in the mount such that an impeller of the blower is in a flow passage connecting the inlet air passage and the outlet air passage; a casing enclosing the volute assembly, wherein air passages within the casing connect air ports on the volute assembly, wherein the inlet air passage of the volute assembly is in fluid communication with the outside air inlet and the outlet air passage of the volute assembly is in fluid communication with the air outlet.

Abstract: The invention proposes a housing of an electrical connector including a contact holder and a front grid arranged for being mounted together, wherein: —the contact holder includes channels for receiving electrical contacts within, each channel being limited by resilient members stressable by an electrical contact whose position in the channel is not correct; —the front grid comprises a front panel with a plurality of transversal connecting windows for facing corresponding channels of the contact holder; characterized in that the housing includes members for locking the front grid to the contact holder by translating the front grid with respect to the contact holder according to a lateral direction.

Abstract: This connector has snap-fit lock including a partially deformable locking member which is mounted on the housing so as to be axially slideable between an extended locking position and a retracted position; and a biasing spring which axially bias said locking member to its locking position. The locking member has a flexible beam including a tooth member adapted to engage a complementary locking projection of the counterpart connector, and to provide an axial stop therewith. The flexible beam is elastically deflectable on the axial path of the locking member, whereby the snap-fit effect is provided by elastic load, both axial and in flexion, of the flexible beam.

Abstract: This grommet joint includes a peripheral portion provided to sealingly engage a peripheral inner surface of a connector housing, and a central portion having at least one through passage for a wire. Recesses are provided between the central portion and the peripheral portion, the central portion being attached to the peripheral portion by flexible walls, whereby the central portion is rotatory attached to the peripheral portion.

Abstract: The invention proposes a housing of an electrical connector including a contact holder and a front grid arranged for being mounted together, wherein:—the contact holder includes channels for receiving electrical contacts within, each channel being limited by resilient members stressable by an electrical contact whose position in the channel is not correct;—the front grid comprises a front panel with a plurality of transversal connecting windows for facing corresponding channels of the contact holder; characterized in that the housing includes members for locking the front grid to the contact holder by translating the front grid with respect to the contact holder according to a lateral direction.

Abstract: This connector has snap-fit lock including a partially deformable locking member which is mounted on the housing so as to be axially slideable between an extended locking position and a retracted position; and a biasing spring which axially bias said locking member to its locking position. The locking member has a flexible beam including a tooth member adapted to engage a complementary locking projection of the counterpart connector, and to provide an axial stop therewith. The flexible beam is elastically deflectable on the axial path of the locking member, whereby the snap-fit effect is provided by elastic load, both axial and in flexion, of the flexible beam.