Delivery of respiratory therapy with foam interface
First Claim
1. A patient interface to provide a supply of pressurized air to an airway of a patient for positive airway pressure treatment of sleep disordered breathing, comprising:
- an interface including a foam portion configured to form a seal with the patient'"'"'s face to deliver the pressurized air to the patient for positive airway pressure treatment of sleep disordered breathing and a connection portion sealingly attached to the foam portion;
a support structure to support the interface, the support structure being adapted to be coupled to an air delivery system that provides a supply of air from a source of air at positive pressure so as to be in fluid communication therewith;
an attachment mechanism configured to sealingly engage the connection portion to detachably couple the interface with the support structure; and
a strap configured to facilitate support of the interface on the patient'"'"'s face, the strap being configured to aid in maintenance of the seal between the interface and the patient'"'"'s face in the presence of pressurized air sufficient to effect positive airway pressure treatment of sleep disordered breathing,wherein the connection portion has an attachment surface engaging the foam portion, an aperture being formed through the attachment surface to convey the air therethrough, the entire attachment surface extending in a continuous manner around the aperture,wherein the foam portion includes an orifice in fluid communication with the supply of air, the orifice being formed through the foam portion and arranged such that when the interfacing structure is worn the entire foam portion is positioned externally of the patient'"'"'s nasal passageways,wherein the foam portion includes an attachment section having a foam surface attached to the attachment surface of the connection portion, the foam surface of the attachment section extending in a continuous manner around the orifice,wherein the connection portion consists of a generally planar base attached to the underside of the foam portion,wherein the foam portion is configured to sealingly engage with an underside of the patient'"'"'s nose to cradle the patient'"'"'s nose, andwherein the connection portion is formed of a different material than the foam portion, the connection portion being more rigid than the foam portion.
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Accused Products
Abstract
An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient'"'"'s head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.
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Citations
37 Claims
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1. A patient interface to provide a supply of pressurized air to an airway of a patient for positive airway pressure treatment of sleep disordered breathing, comprising:
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an interface including a foam portion configured to form a seal with the patient'"'"'s face to deliver the pressurized air to the patient for positive airway pressure treatment of sleep disordered breathing and a connection portion sealingly attached to the foam portion; a support structure to support the interface, the support structure being adapted to be coupled to an air delivery system that provides a supply of air from a source of air at positive pressure so as to be in fluid communication therewith; an attachment mechanism configured to sealingly engage the connection portion to detachably couple the interface with the support structure; and a strap configured to facilitate support of the interface on the patient'"'"'s face, the strap being configured to aid in maintenance of the seal between the interface and the patient'"'"'s face in the presence of pressurized air sufficient to effect positive airway pressure treatment of sleep disordered breathing, wherein the connection portion has an attachment surface engaging the foam portion, an aperture being formed through the attachment surface to convey the air therethrough, the entire attachment surface extending in a continuous manner around the aperture, wherein the foam portion includes an orifice in fluid communication with the supply of air, the orifice being formed through the foam portion and arranged such that when the interfacing structure is worn the entire foam portion is positioned externally of the patient'"'"'s nasal passageways, wherein the foam portion includes an attachment section having a foam surface attached to the attachment surface of the connection portion, the foam surface of the attachment section extending in a continuous manner around the orifice, wherein the connection portion consists of a generally planar base attached to the underside of the foam portion, wherein the foam portion is configured to sealingly engage with an underside of the patient'"'"'s nose to cradle the patient'"'"'s nose, and wherein the connection portion is formed of a different material than the foam portion, the connection portion being more rigid than the foam portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification