Patient interface
First Claim
1. A patient interface for treatment of sleep apnea, comprising:
- a body for connection with a supply of pressurized breathable gas under continuous positive airway pressure; and
a compliant cushion of silicone elastomer defining at least a portion of a breathing chamber configured to communicate the pressurized gas to a patient'"'"'s nasal passages, said cushion including;
a frame, said frame being of resilient material and having a first membrane, the first membrane extending along at least a portion of an inner perimeter of the frame, said frame having a front portion with an edge structured to be coupled to the body; and
a second membrane of resilient material, said second membrane spaced an open distance from said first membrane along substantially an entire length of the second membrane when the patient interface is not in use, a portion of said second membrane forming a face contacting seal, wherein a substantially full perimeter of the second membrane is provided in covering yet spaced relation to the first membrane,wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, andwherein the first and second membranes are formed as a one-piece unit andwherein said first and second membranes are turned inwards relative to the frame along substantially the full perimeter of the frame.
3 Assignments
0 Petitions
Accused Products
Abstract
A patient interface for use with the administration of CPAP therapy to a patient, comprising: a body for connection with a supply of pressurized breathable gas pressurized above ambient; and a compliant patient contacting element to communicate the pressurized gas to at least the patient'"'"'s nasal passages, the element including a multilayered cushioning interface, the interface comprising an interior layer and an exterior layer being provided in spaced relation to the interior layer, the exterior layer being elastically and resiliently movable towards and away the interior layer in use. Along at least a portion of the perimeter of the exterior layer, a surface of the exterior layer is deformable from the spaced relation to abut against and contact against a surface of the interior layer in dependence at least in part on a deformation force applied to the exterior layer.
188 Citations
35 Claims
-
1. A patient interface for treatment of sleep apnea, comprising:
-
a body for connection with a supply of pressurized breathable gas under continuous positive airway pressure; and a compliant cushion of silicone elastomer defining at least a portion of a breathing chamber configured to communicate the pressurized gas to a patient'"'"'s nasal passages, said cushion including; a frame, said frame being of resilient material and having a first membrane, the first membrane extending along at least a portion of an inner perimeter of the frame, said frame having a front portion with an edge structured to be coupled to the body; and a second membrane of resilient material, said second membrane spaced an open distance from said first membrane along substantially an entire length of the second membrane when the patient interface is not in use, a portion of said second membrane forming a face contacting seal, wherein a substantially full perimeter of the second membrane is provided in covering yet spaced relation to the first membrane, wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, and wherein the first and second membranes are formed as a one-piece unit and wherein said first and second membranes are turned inwards relative to the frame along substantially the full perimeter of the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A patient interface for treatment of sleep apnea, comprising:
-
a body for connection with a supply of pressurized breathable gas under continuous positive airway pressure; and a compliant cushion defining at least a portion of a breathing chamber configured to communicate the pressurized gas to a patient'"'"'s nasal passages, said cushion having a front portion with an edge structured to be coupled to the body, said cushion including; a first membrane made of molded resilient material, and a second membrane of molded resilient material, said second membrane spaced an open distance from said first membrane along substantially an entire length of the second membrane when the patient interface is not in use, a portion of said second membrane forming a face contacting seal, wherein a substantially full perimeter of the second membrane is turned inwardly and provided in covering yet spaced relation to the first membrane, wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, and wherein the first and second membranes are formed as a one-piece unit. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A patient interface for use with the administration of CPAP therapy to a patient, comprising:
-
a body for connection with a supply of pressurized breathable gas pressurized above ambient; and a compliant patient contacting element configured to communicate the pressurized gas to at least the patient'"'"'s nasal passages, said element including a multilayered cushioning interface, said interface comprising an interior layer and an exterior layer having substantially an entire length provided in spaced relation to the interior layer when the patient interface is not in use, said exterior layer being elastically and resiliently movable towards and away the interior layer in use, only said exterior layer forming a contacting seal with the patient in use, wherein along at least a portion of a perimeter of the exterior layer, a surface of the exterior layer is deformable from said spaced relation to abut against and contact against a surface of the interior layer in dependence at least in part on a deformation force applied to the exterior layer. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
-
Specification