Abstract: An adjustable headgear assembly (10) for securing a respiratory interface device (26) to the head of a patient that includes a headgear member (12) that fits over the crown and back portion of a human head. The headgear member (12) has upper side portions (14) positionable above and forward of the ears of a human head and lower side portions (16) positionable below the ears and along the back portion of the head. A pair of upper retention members (20) are provided. Each pair of upper retention members (20) extends downwardly and forwardly from the upper side portions (14). A pair of lower retention members (30) extend forwardly and upwardly from each of the side portions. Each pair of upper (20) and lower (30) retention members are structured to engage a respiratory interface device (26).

Abstract: A patient interface device includes a support member, a sealing assembly attached to the support member, and a pair of contacting members. The contacting members are coupled to the support member on each side of the sealing assembly. The contacting members are each configured and arranged to contact the user over a limited contacting region, which corresponds to a junction of the orbicularis oris facial muscle, the zygomaticus facial muscle, and the risorius facial muscle.

Abstract: The present invention provides a respiratory interface device including a mask having an upper, mask upper portion, a lower, mask lower portion, a flexible connecting member, and a patient contacting cushion. The flexible connecting member extends between, and is coupled to both, the mask upper portion and the mask lower portion. The flexible connecting member permits the mask upper portion and the mask lower portion to flex relative to one another. The patient contacting cushion is coupled to, and extends about, the mask upper portion, the mask lower portion, and the flexible connecting member. A brace assembly having a body with at least one mask coupling is provided. The brace is coupled to the mask upper portion and to the mask lower portion. The brace limits the outward rotation of the mask upper portion relative to the mask lower portion.

Abstract: A portable patient interface system (2) includes a frame (16), a cushion (14) coupled to a first side of the frame, a collapsible faceplate (18) coupled to a second side of the frame opposite the first side, and a longitudinally collapsible hose (56) structured to be in fluid communication with the collapsible faceplate and the cushion.

Abstract: A pressure support system includes a pressure generator, a pressure sensor, a flow sensor, and a controller cooperating with the pressure sensor and the flow sensor to control operation of the pressure generator. The controller is structured to automatically identify a patient interface device in use with the pressure support system by detecting a change of exhaust flow of up to a predetermined amount across a predetermined pressure gradient of a pressure range of the pressure support system.

Abstract: A patient interface device that overcomes the shortcomings of conventional patient interface devices is provided. One embodiment of the patient interface device provides a cushion for a patient interface device that includes a first end portion structured to contact a portion of a patient's face. The first end portion includes an inner, first surface, an outer, second surface and at least one pocket disposed between the first end portion first surface and the first end portion second surface.

Abstract: A respiratory interface device including a fluid coupling device having a main body and an exhalation plate having a plurality of vent holes, the exhalation plate being separate from and coupled to the main body. The present invention further relates to a fluid coupling device including an exhaust portion having a plurality of vent holes having a tapered shape. A set of the vent holes has an incident angle that radiates and originates from a common point. The present invention also relates to an exhalation mechanism including a plurality of vent holes defined by a continuous straight inner wall extending from an interior surface to an exterior surface wherein an exterior circumference of the vent hole is offset with respect to an interior circumference.

Abstract: Various embodiments of respiratory patient interfaces that may be used to treat a variety of disorders involving upper airway obstruction, such as, without limitation, Obstructive sleep apnea (OSA), obstructive sleep hypopnea, and upper airway resistance syndrome (UARS). A number of the embodiments employ a nasal pillow assembly including a frame that supports a nasal pillow sleeve and a clip that is slid over a flange of the fame to couple the nasal pillow sleeve to the frame.

Abstract: A sensor device in the form of a patient interface has a sensor arrangement for determining a degree of fitting of a contact surface to the patient. This enables design parameters for a customised patient interface to be determined or else fitting adjustments to be made, based on how well the customisation sensor device fits the patient.

Abstract: The present invention relates to a patient interface assembly (10) and a force limiter (40). The force limiter (40) is adapted to limit a force between a patient interface (20) and a patient's face (14) when the patient interface (20) is applied to the patient (14). For this purpose, the force limiter (40) comprises a spring-like element (47, 48, 49, 49?, 49?, 49?, 1, 70) with a substantially degressive spring characteristic. The present invention further 5 relates to a patient interface, an attachment assembly and a clip for use in a patient interface assembly and comprising said force limiter.

Abstract: Various embodiments of respiratory patient interfaces that may be used to treat a variety of disorders involving upper airway obstruction, such as, without limitation, Obstructive sleep apnea (OSA), obstructive sleep hypopnea, and upper airway resistance syndrome (UARS). A number of the embodiments employ a nasal pillow assembly including a frame that supports a nasal pillow sleeve and a clip that is slid over a flange of the fame to couple the nasal pillow sleeve to the frame.

Abstract: The present invention relates to a patient interface identification system for identifying a patient interface that is suited for a face (16) of a user (18), comprising: a receiving unit (12) for receiving a test picture (14) including the face (16) of the user (18); a database (22) for storing reference picture including faces of other users, wherein each reference picture is referenced to a patient interface advice; a processing unit (24) for comparing the received test picture (14) with at least a subset of said reference pictures stored in the database (22), wherein comparing said test picture (14) with said subset of reference pictures includes a comparison of image based features of the user's face (16) and the other users' faces; and a user interface (26) for communicating a patient interface advice including information related to a patient interface that is suited for the face (16) of the user (18), which patient interface advice is based on the comparison of said test picture (14) with the subset of

Abstract: A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.

Abstract: The present invention relates to a respiratory interface device for delivering a gas to a user (50), comprising: —a connection interface (24) for connecting a hose to deliver gas to the user (50), —a cushion (12) that is adapted to contact a face of the user (50) and to surround at least a part of a nose and/or a mouth of the user (50), and—an inflatable support structure (14) for holding the cushion (12).

Abstract: Various embodiments of a respiratory interface device, such as a mask (10), that includes a first substantially rigid portion (14), a second substantially rigid portion (16) and a connecting member (18) that is structured to flexibly connect the first and second substantially rigid portions. The flexible connection provides an effective fit of the respiratory interface device against the user's face.

Abstract: A cushion (10) for use in a patient interface device includes a first portion (12) structured to be coupled to a frame of a patient interface, an opposite second portion (14) structured to sealingly engage a patient's face, and a wall portion (16) disposed therebetween. The wall portion includes a base portion (20) extending from the first portion and an angled portion (24) extending from the base portion at an angle (a) with respect to the base portion. The second portion includes an underlying support portion (26) which extends from about a mid-portion of the angled portion and a membrane (30) which extends generally from an end of the angled portion. The angled portion is structured to generally maintain the lateral positioning of the membrane and the support portion when the cushion is transitioned from an uncompressed position to a compressed position.

Abstract: A patient interface assembly that includes a first conduit, a second conduit, and a patient interface coupled to the first conduit and the second conduit. The first and second conduits each include a first end that is disposed proximate to a top of a head of a user, and a second end that is disposed proximate to an airway of such a user when the patient interface assembly is being worn by the user. The first and second conduits also each include a central portion that extends along the sides of a face between the user's eye and an ear a head strap is coupled between the first and second conduit, and a patient interface is coupled to the second ends of the first and second conduits.

Abstract: A coupling assembly for a respiratory interface device support assembly and a respiratory interface device mask is provided. The respiratory interface device support assembly has at least one strap structured to be coupled to each lateral side of the respiratory interface device mask. The coupling assembly includes a first rotatable coupling component structured to be coupled to the support assembly and having a first rotation limiting structure, and, a second rotatable coupling component structured to be coupled to the mask and having a second rotation limiting structure. When coupled, the first rotatable coupling component first rotation limiting structure and the second rotatable coupling component first rotation limiting structure limit the rotation of the first rotatable coupling component relative to the second rotatable coupling component.

Abstract: A conduit coupling assembly for use in connection with a patient interface device. The conduit coupling assembly includes a coupling retention assembly for retaining the conduit coupling in a predetermined position with respect to the user's face, and an adjustment assembly that permits continuous adjustment of a position of the conduit coupling with respect to a user's face. The conduit coupling assembly is continuously adjustable and retainable in an adjusted position and orientation by the adjustment assembly.

Abstract: A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.