Abstract: The present system is an adsorption system (100) for separating air into a concentrated gas component, which has an air supply, a compressor (115) for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM<9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.

Abstract: A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP based on the occurrence of any one of these conditions.

Abstract: A seal and a mask using a seal that includes a first end portion adapted to be coupled to a seal support, a second end portion adapted for sealing engagement with a face of a user, and a sidewall extending between the first end portion and the second end portion. The first end portion, second end portion, sidewall, or any combination thereof is formed from an elastomeric material having an elongation of at least 1000%. The seal preferably formed from a unitary piece of elastomeric material.

Abstract: A patient interface assembly that includes a substantially rigid support and a patient interface device coupled to a first end of the support. A first arm is coupled to a first side of the support and a second arm is coupled to a second side of the support. A cross member spans between the first arm and the second arm such that the cross member is disposed under a patient's mandible when the patient interface assembly is worn by a user. An addition, a conduit is coupled to a second end of the support.

Abstract: A patient interface device including a cushion assembly having a cushion-in-a-cushion arrangement and a system for supplying a flow of gas to a patient using such an interface device. The patient interface includes a mask shell having a patient side and an outer side opposite the patient side adapted for receiving a supply of gas. A seal cushion contacts a first area of a patient's face to form a seal therewith. A support cushion is disposed outside the seal cushion and includes a first end portion that contacts a second area of a patient's face.

Abstract: An impeller, a pressure generator using such an impeller, and a pressure support system and method using such a pressure generator to deliver a flow of breathing gas to a patient is disclosed. The impeller enables a pressure of a flow of breathing gas delivered by a pressure support system to a patient to remain substantially constant despite variations of the output flow rate. The impeller includes a plurality of impeller blades disposed on a face of the impeller body with an inlet area between each pair of adjacent blades being substantially equal a corresponding outlet area for each pair of adjacent blades.

Abstract: An exhaust port assembly comprising a conduit carries a flow of gas. A vent assembly having a fixed exhaust area is provided on the conduit for venting a flow of exhaust gas from within the conduit to ambient atmosphere. The vent assembly is configured so as to minimize noise associated with the flow of exhaust gas passing to atmosphere, diffuse the flow of exhaust gas passing to ambient atmosphere over a relatively large area, and minimize the area occupied by the venting assembly on the conduit.

Abstract: Light device comprising a substrate, at least one photo-organic layer, at least two electrode layers electrically separated by said at least one photo-organic layer, and at least one encapsulation layer, wherein said at least one photo-organic layer is positioned between said substrate and said at least one encapsulating layer, and wherein multiple openings are provided that extend through the light device to allow fluids and or heat to pass through, said openings being spaced apart from said at least one photo-organic layer.

Abstract: A respiratory mask including a base plate adapted for connection to a gas source and a bladder secured to the base plate to form a generally fluid tight seal with the base plate, and defining at least one internal chamber with the base plate for receiving a fluidizing medium to fill the bladder and form a resilient cushion.

Abstract: A method of employing a pressure generating system that provides a pressure therapy to the pulmonary system of a patient and to enable the patient to interact with the pressure support system, for example, to monitor the effectiveness of the treatment provided by the pressure support system. The interactive system includes an output device that provides first information to the patient, an input device that allows the patient to provide second information that is based on the first information and a control unit that controls the operation of the output device to present the first information and collection of the second information via the input device. In a further embodiment, the operation of the pressure generating system is controlled based on the second information provided by the patient.

Abstract: A conduit assembly that delivers a flow of breathing gas to an airway of user. The conduit assembly includes a first flexible segment having a first end portion, a second end portion, and a first lumen defined therein from the first end portion to the second end portion. The conduit assembly also includes a second flexible segment having a third end portion, a fourth end portion, and a second lumen defined therein from the third end portion to the fourth end portion. A first swivel connector is coupled to the second end portion of the first segment and the third end portion of the second segment such that the first segment is rotatable relative the second segment.

Abstract: A patient interface that reliably and comfortably seals a user's face by providing an oral-nasal mask that includes an integrated nasal interface. The patient interface includes a seal member having an oral cushion portion configured to surround the user's mouth and a nasal interface portion that provides an interface with the user's nose. The seal member, including the oral cushion portion and the nasal interface portion, is a unitary member. Finally, the nasal interface portion remains below the bridge of the nose.

Abstract: A system and method of monitoring a patient, that in one embodiment, comprises determining a flow of gas generated by respiration of the patient, identifying a respiratory event entry and a respiratory event exit based on the flow of gas generated by respiration of the patient, and identifying a respiratory event when the identification of the respiratory event entry is followed by the identification of respiratory event exit.

Abstract: A medical device, such as a respiratory treatment device, includes a passive acoustic noise reduction system in the form of a vibration reducing blower assembly isolation mount. The device includes a housing, a blower assembly mounted therein, a patient circuit coupled to the blower assembly, and a noise reducing blower assembly isolation mount. The mount includes a first vibration damping member adjacent one side of the blower assembly spacing the blower assembly from a mounting surface upon which the blower assembly is supported. A securing member positions and holds the blower assembly onto the mounting surface, and a second vibration damping member adjacent an opposite side of the blower assembly spaces the blower assembly from the securing member. The vibration damping members are injection molded thermoplastic elastomeric members.

Abstract: A patient interface includes a body member, a partition, a nasal seal portion, and a port. The partition is integral with the body member, and separates an interior of the member into a first chamber configured to receive a nose of a patient and a second chamber. The nasal seal portion is integral with the partition, and projects therefrom into the first chamber. The nasal seal portion includes a seal surface and a gas passage therethrough. The seal surface is configured to conform with a lower portion of the nose that is surrounding nasal passages of the patient, without entering the nasal passages of the patient, when the patient interface is mounted operatively on the face of the patient. The port integral with the member is in fluid communication with the second chamber for delivery of gas to the patient via the gas passage in the nasal seal portion.

Abstract: A method and system of operating a trans-fill device. At least some of the illustrative embodiments are methods comprising generating an enriched gas stream from atmospheric air, and operating an intensifier which, when provided the enriched gas stream, produces a cylinder fill gas stream. The operating continues in the absence of the enriched gas stream being provided to the intensifier.

Abstract: A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP independently based on the occurrence of any one of these conditions.

Abstract: The present invention provides a connection device for connecting a headgear having straps, a mask and a system for supplying a flow of gas to a patient. The connection device incorporates a locking member or locking portion which is configured to lock the straps in a particular location.

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 respiratory mask is provided having an outer shell coupled to a cushion for the delivery of a gas to a user. The cushion of the respiratory mask has a pleat and varied wall thicknesses about the device in order to provide varying degrees of flexibility and support about the cushion.