Abstract:
A patient interface (10) for delivering breathable gas to a patient includes a foam interfacing portion (200) adapted to provide a nasal interface to contact under and around the patient's nose in use and including an orifice adapted to surround both the patient's nares in use, and a positioning and stabilizing structure (90) to support the foam interfacing portion in an operative position on the patient's face. The positioning and stabilizing structure is structured to provide a range of rotational, axial, and/or lateral movement to the foam interfacing portion while maintaining a sufficient interface and resisting the application of tube drag and/or headgear tension to the foam interfacing portion.
Abstract:
A respiratory mask (10) for use with a patient, and that is suited for use with children, includes a flexible cushion (12) arranged to interface with and deliver air to the patient's nose. The cushion has a tube connection portion at one or both sides adjacent the patient's nares, the tube connection portion being arranged to connect to an air delivery tube. This location, plus the very low profile of the mask, allows a patient (e.g. an infant) to sleep on their face more comfortably. A more rigid support structure (14) adjacent the cushion is provided to stabilize the cushion and prevent it from collapsing. Headgear is also provided and arranged for releasable attachment to the support structure.
Abstract:
A respiratory mask assembly includes a frame (20) having a channel and a cushioning element (30) including a clip portion adapted for interference seal and retention in the channel. The cushioning element includes an interfacing portion constructed from foam and having a wider width than the clip portion.
Abstract:
An air delivery system (30) for providing a supply of air from a source of air at positive pressure to an interfacing structure (20) located at the entrance to the airways of a patient includes a manifold (70) adapted to connect with the supply of positive air pressure and at least one tube (42) connected to the manifold (70) and adapted to deliver the supply of air to the interfacing structure (20). Each tube (42) is structured to allow movement between (1) an open phase in which the tube (42) allows the passage of air and (2) a collapsed phase in which the tube (42) is collapsed. Each tube (42) is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube (42) from the open phase to the collapsed phase.
Abstract:
A CPAP system includes a PAP device (5) structured to generate a supply of pressurized air, a patient interface (15) adapted to engage with the patient's face to provide a seal, an air delivery conduit (102,104) provided between the PAP device and the patient interface to deliver the supply of pressurized air along a gas delivery path from the PAP device to the patient interface, and a muffler (100) provided along the gas delivery path downstream of the PAP device.
Abstract:
A cushion assembly (700) for use with a respiratory mask includes a bladder (715) filled with the combination of a gel (740) having a first indentation hardness and a gel (750) having a second indentation hardness.
Abstract:
A patient interface includes at least one sub-component of headgear, headgear clips, frame, venting, forehead support, cushion, and elbow assembly constructed of TPE or the combination of a textile and polymer.
Abstract:
A patient interface (10) includes a sealing arrangement (20) adapted to provide an effective seal with the patient's nose, an inlet conduit arrangement (30) adapted to deliver breathable gas to the sealing arrangement (20), and a cover (40) that substantially encloses the sealing arrangement (20) and/or the inlet conduit arrangement (30).
Abstract:
A washout vent formed of or treated with hydrophobic or hydrophilic material, or a vent coated with hydrophobic or hydrophilic material, reduces noise and/or minimizes or precludes the formation of blockage in the vent pathway due to outflow of gas from a respiratory mask. One or the other or combinations of hydrophobic and hydrophilic materials may be used to repel or wick moisture away to minimize or preclude moisture buildup on vent surfaces and/or clogging of vent pathways, particularly when using humidified air. Sintered porous plastic hydrophobic or hydrophilic materials are utilized and the porosity may be varied integrally within the vent membrane or by forming the vent from layers of materials having different porosities.
Abstract:
A cushioning component for use with a mask is constructed of foam material. A patient contacting surface, that is adapted to contact a patient, in use, has a rounded cross sectional profile and a base surface opposed to the patient contacting surface.