Abstract:
PROBLEM TO BE SOLVED: To provide cushions which provide a comfortable and effective seal for a range of facial sizes and shapes.SOLUTION: The cushion (10) for a patient interface that delivers breathable gas to a patient includes a base wall (28) structured to be connected to a frame, an underlying support cushion (30) extending away from the base wall (28) towards the patient's face in use, and a membrane (32) provided to substantially cover at least a portion of the underlying cushion (30). The membrane (32) is adapted to form a continuous seal on the patient's face. The underlying cushion (30) has a spring-like connection with the base wall (28). The underlying cushion (30) and/or base wall (28) define a spring constant that varies along a length of the seal.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved mask system. SOLUTION: This patient interface for delivering breathable gas to a patient includes: a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use; and a headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
One form of the present technology includes a sealing structure to seal against a user's face around the user's airways. The sealing structure includes a flap or membrane that extends inward towards the user's airways and includes a structure that prevents an inner boundary of the flap or membrane from being blown outwards (e.g., folded backwards upon itself) due to internal pressurization.
Abstract:
A cushion (10) for a patient interface that delivers breathable gas to a patient includes a base wall (28) structured to be connected to a frame, an underlying support cushion (30) extending away from the base wall (28) towards the patient's face in use, and a membrane (32) provided to substantially cover at least a portion of the underlying cushion (30). The membrane (32) is adapted to form a continuous seal on the patient's face. The underlying cushion (30) has a spring-like connection with the base wall (28). The underlying cushion (30) and/or base wall (28) define a spring constant that varies along a length of the seal.
Abstract:
PROBLEM TO BE SOLVED: To provide cushions which provide a comfortable and effective seal for a range of facial sizes and shapes.SOLUTION: A cushion (10) for a patient interface that delivers breathable gas to a patient includes a base wall (28) structured to be connected to a frame, an underlying support cushion (30) positioning under the wall and extending away from the base wall (28) towards the patient's face in use, and a membrane (32) provided to substantially cover at least a portion of the underlying cushion (30). The membrane (32) is adapted to form a continuous seal on the patient's face. The underlying cushion (30) has a spring-like connection with the base wall (28). The underlying cushion (30) and/or base wall (28) define a spring constant that varies along a length of the seal.
Abstract:
PROBLEM TO BE SOLVED: To provide a cushion which provides a comfortable and effective seal for a range of facial sizes and shapes.SOLUTION: A cushion (10) for a patient interface that delivers breathable gas to a patient includes: a base wall (28) structured to be connected to a frame; an underlying support cushion (30) extending away from the base wall (28) toward the patient's face in use; and a membrane (32) provided to substantially cover at least a portion of the underlying support cushion (30). The membrane (32) is adapted to form a continuous seal on the patient's face. The underlying support cushion (30) has a spring-like connection with the base wall (28). The underlying support cushion (30) and/or base wall (28) define a spring constant that varies along a length of the seal.
Abstract:
A mask system includes a cushion for a mask that seals at its upper extent in a region of the nose that is generally above the tip of the nose or pronasale, and extends across a portion of the cartilaginous framework, alar or flares of the patient's nose, e.g., not extending over or across the bone nasal bone of the patient's nose.
Abstract:
A cushion (10) for a patient interface that delivers breathable gas to a patient, the cushion defining part of a cavity which receives at least part of the nose and / or mouth of the patient. The cushion includes a base wall, a membrane (32) adapted to form a seal on the patient’s face and a support structure (30) that extends from an inner surface of the cushion into the cavity. The cushion includes a nasal bridge region, a pair of side of nose regions, a pair of upper cheek regions, a pair of lower cheek regions, and a chin region. The support provides support to the pair of side of nose regions of the cushion, the support structure being absent in the chin region of the cushion. At least a portion of the membrane is thinner than at least a portion of the support structure. At least a portion of the membrane in the pair of lower cheek regions is thicker than at least a portion of the membrane in the nasal bridge region.
Abstract:
A nasal mask, comprising a superior sealing portion (3102) and an inferior sealing portion (3104). The superior sealing portion is constructed and arranged to be substantially located on a portion of the cartilaginous framework of a nose of the patient, and to form a seal therewith without exerting a sealing force that would restrict a flow of air through the nasal cavity. The inferior sealing portion is constructed and arranged to be located in part on a portion of an upper lip of the patient and to direct a sealing force to a portion of a maxilla bone of the patient. The superior sealing portion and the inferior sealing portion provide a sealing region including a flexible, flap-type seal adapted to readily conform to a facial contour of the patient in use. The superior sealing portion comprises a membrane without an undercushion.