Delivery of respiratory therapy
A patient interface includes a sealing arrangement adapted to provide an effective seal with the patient's nose, an inlet conduit arrangement adapted to deliver breathable gas to the sealing arrangement, and a cover that substantially encloses the sealing arrangement and/or the inlet conduit arrangement.
1 . A patient interface for delivering pressurized breathable gas to a patient for treatment of sleep disordered breathing, comprising:
a sealing arrangement configured to, in use, seal against a patient's face to deliver pressurized breathable gas to the patient, the sealing arrangement including:
a support structure comprising silicone; and
a sealing portion provided over the support structure to form a layered arrangement, the sealing portion including a textile material configured to, in use, contact the patient's face under the patient's nose to facilitate delivery of the pressurized breathable gas to the patient's nasal airway,
wherein the sealing arrangement includes 1) a first overlapping region where the sealing portion, including the textile material, is provided over the silicone of the support structure to form the layered arrangement, and 2) a first non-overlapping region located laterally outwardly of the first overlapping region and including the silicone of the support structure without the sealing portion provided thereto,
wherein a patient-facing surface of the textile material is configured to, in use, contact the patient's face under the patient's nose, the textile material including a non-patient facing surface opposite the patient-facing surface, a distance between the patient-facing surface and the non-patient facing surface corresponding to a thickness of the textile material,
wherein the non-patient facing surface is attached to the silicone of the support structure to form the layered arrangement,
wherein a longitudinal plane extends through the sealing arrangement in a left-right direction when positioned on the patient's face in use, wherein a transverse plane extends perpendicularly to the longitudinal plane,
wherein, in a cross-section taken along a line parallel to the transverse plane, the support structure has a curvature and the textile material has a curvature that corresponds to the curvature of the support structure in the first overlapping region, and
wherein at least a section of the textile material extends continuously from the support structure at a first lateral side of the sealing arrangement to the support structure at a second lateral side of the sealing arrangement, the second lateral side being opposite the first lateral side.
2 . The patient interface of claim 1 , wherein the sealing portion has an opening formed therein to deliver the pressurized breathable gas to the patient's airway in use.
3 . The patient interface of claim 2 , further comprising a second non-overlapping region located laterally inwardly of the first overlapping region and relatively proximate the opening as compared to the first overlapping region, the second non-overlapping region including the sealing portion without the silicone of the support structure such that the sealing portion overhangs the silicone of the support structure.
4 . The patient interface of claim 1 , wherein the support structure is flexible.
5 . The patient interface of claim 1 , wherein the textile material is elastic.
6 . The patient interface of claim 1 , wherein the sealing portion comprises the textile material and a silicone air impermeable layer coated onto the textile material.
7 . The patient interface of claim 1 , wherein the textile material is porous so as to provide a breathable seal with intentional leak in use.
8 . The patient interface of claim 1 , wherein the sealing arrangement does not include prongs or nasal cannulas.
9 . The patient interface of claim 1 , wherein the textile material comprises multiple layers of textile.
10 . The patient interface of claim 1 , further comprising:
an inlet conduit arrangement including a pair of inlet conduits configured to, in use, deliver the breathable gas to an airway of the patient,
wherein the sealing arrangement is fluidly connected to the inlet conduit arrangement.
11 . The patient interface of claim 10 , further comprising a pair of rigid tubes respectively disposed at opposing sides of the sealing arrangement, each rigid tube having a first end portion in fluid communication with the sealing arrangement and a second end portion configured to removably connect to a corresponding one of the inlet conduits.
12 . The patient interface of claim 10 , wherein each inlet conduit of the pair of inlet conduits is configured to extend along a respective side of the patient's face, in use.
13 . The patient interface of claim 12 , wherein each inlet conduit is configured to extend between the patient's eye and ear, in use.
14 . The patient interface of claim 10 , further comprising a connector constructed and arranged to interconnect the inlet conduit arrangement with an air delivery tube adapted to be connected to a flow generator, the connector being configured to, in use, be positioned at a top of the patient's head.
15 . The patient interface of claim 10 , further comprising an adjustable rear strap to facilitate securing the patient interface on the patient's head in use.
16 . The patient interface of claim 10 , further comprising a cover constructed of a textile material that substantially encloses the inlet conduit arrangement.
17 . The patient interface of claim 16 , wherein the cover exposes a connector arranged to interconnect the inlet conduit arrangement with an air delivery tube.
18 . The patient interface of claim 1 , wherein the patient interface is a nasal interface.
19 . The patient interface of claim 1 , wherein the non-patient facing surface is attached directly to the silicone of the support structure to form the layered arrangement.
20 . A patient interface for delivering pressurized breathable gas to a patient for treatment of sleep disordered breathing, comprising:
a sealing arrangement configured to, in use, seal against a patient's face to deliver pressurized breathable gas to the patient, the sealing arrangement including:
a support structure comprising silicone having a first opening; and
a sealing portion provided over the support structure to form a layered arrangement, the sealing portion including a textile material configured to, in use, contact the patient's face under the patient's nose to facilitate delivery of the pressurized breathable gas to the patient's nasal airway, the textile material having a second opening formed therein overlapping with the first opening in the support structure to allow flow of the breathable gas to the patient's nasal airway in use, the second opening defining an inner edge of the textile material,
wherein the sealing arrangement includes 1) a first overlapping region where the sealing portion, including the textile material, is provided over the silicone of the support structure to form the layered arrangement, and 2) a first non-overlapping region located laterally outwardly of the first overlapping region and including the silicone of the support structure without the sealing portion provided thereto,
wherein a longitudinal plane extends through the sealing arrangement in a left right direction when positioned on the patient's face in use, wherein a transverse plane extends perpendicularly to the longitudinal plane, and
wherein, in a cross-section taken along a line parallel to the transverse plane, both the support structure and the textile material, in the overlapping region, extend along a curve in a direction that extends from a periphery of the textile material towards the inner edge of the textile material.