Patient interface systems

Headgear for a patient interface configured to deliver a flow of breathable gas to a patient, the headgear comprising:

• an elastomer in the form of a strap adapted to position the patient interface in sealing engagement with the patient's airways, wherein a first side of said elastomer includes a first region with a surface that is textured to increase surface roughness and reduce surface tension and/or friction between the strap and the patient, wherein the strap has a rounded edge.

Headgear for a patient interface configured to deliver a flow of breathable gas to a patient, the headgear comprising:

• an elastomer in the form of a strap adapted to position the patient interface in sealing engagement with the patient's airways, wherein a first side of said elastomer includes a first region with a surface that is textured to increase surface roughness and reduce surface tension and/or friction between the strap and the patient, wherein the first region has a Ra value of 1 to 7 μm.

Headgear for a patient interlace configured to deliver a flow of breathable gas to a patient, the headgear comprising:

• an elastomer in the form of a strap adapted to position the patient interface in sealing engagement with the patient's airways, wherein a first side of said elastomer includes a first region with a surface that is textured to increase surface roughness and reduce surface tension and/or friction between the strap and the patient, wherein the first region extends over the entirety of the first side.

Headgear for a patient interface configured to deliver a flow of breathable gas to a patient, the headgear comprising:

• an elastomer in the form of a strap adapted to position the patient interface in sealing engagement with the patient's airways, wherein a first side of said elastomer includes a first region with a surface that is textured to increase surface roughness and reduce surface tension and/or friction between the strap and the patient, wherein the textured surface increases the surface roughness of the portion of the elastomer within the first region.

Headgear for a patient interface configured to deliver a flow of breathable gas to a patient, the headgear comprising:

• an elastomer in the form of a strap adapted to position the patient interface in sealing engagement with the patient's airways, wherein a first side of said elastomer includes a first region with a surface that is textured to increase surface roughness and reduce surface tension and/or friction between the strap and the patient, wherein the surface roughness of the elastomer within the first region is greater than the surface roughness of the elastomer outside of the first region.

Headgear for a patient interface configured to deliver a flow of breathable gas to a patient, the headgear comprising:

• an elastomer in the form of a strap adapted to position the patient interface in sealing engagement with the patient's airways, wherein a first side of said elastomer includes a first region with a surface that is textured to increase surface roughness and reduce surface tension and/or friction between the strap and the patient, wherein the textured surface increases the surface roughness of the strap within the first region.