Patient interface cushion with fabric

A patient interface cushion with a fabric part, for delivering pressurized breathing gas to a user's airways, the patient interface cushion with the fabric part comprising:

• a rigid part configured to provide support to an elastic part, one end of the rigid part having a first opening configured to receive breathing gas from a continuous positive airway pressure device, and an other end having a second opening that communicates with an inner cavity of the elastic part;
• the elastic part configured to connect with the rigid part and provide an attachment surface for the fabric part, and having a third opening adjacent to the rigid part that communicates with the second opening, and a fourth opening away from the rigid part;
• the fabric part having a first surface adjacent to an outer surface of the elastic part, a second surface away from the elastic part to seal at least a portion of a face of the user, an inner edge adjacent to the fourth opening, and an outer edge away from the fourth opening;
• and
• an adhesive layer positioned between the outer surface of the elastic part and the first surface of the fabric part, that connects the elastic part and the fabric part;
• wherein at least a portion of the inner edge of the fabric part is less than or equal to the fourth opening of the elastic part;
• and
• wherein the fabric part has a degree of elasticity and adapts to a curvature change of the elastic part when subjected to pressure, and distances of displacements at different points on the second surface of the fabric part vary when a same level of pressure is applied to different points on the fabric part in an X-axis direction.

A patient interface cushion with a fabric part for delivering pressurized breathing gas to a user's airways, the patient interface cushion with the fabric part comprising:

• a rigid part configured to provide support to an elastic part, one end of the rigid part having a first opening configured to receive breathing gas from a continuous positive airway pressure device, and an other end having a second opening that communicates with an inner cavity of the elastic part;
• the elastic part configured to connect with the rigid part and provide an attachment surface for the fabric part, having a third opening adjacent to the rigid part that communicates with the second opening, and a fourth opening away from the rigid part;
• and
• the fabric part having a first surface adjacent to an outer surface of the elastic part, a second surface away from the elastic part that seals at least a portion of a face of the user, an inner edge of the fabric part adjacent to the fourth opening, wherein at least a portion of the inner edge of the fabric part is greater than or equal to the fourth opening;
• and
• wherein the fabric part has one or more of the following characteristics:
• a surface area of the second surface being at least 3.5% of an outer surface area of the elastic part;
• a water absorption time less than 30 seconds;
• and
• a surface roughness of the second surface having an Ra value between 0.2 and 10 microns.

A patient interface cushion with a fabric part for delivering pressurized breathing gas to a user's airways, the patient interface cushion with the fabric part comprising:

• a rigid part configured to provide support to an elastic part, one end of the rigid part having a first opening configured to receive breathing gas from a continuous positive airway pressure device, and an other end having a second opening that communicates with an inner cavity of the elastic part;
• the elastic part configured to connect with the rigid part and provide an attachment surface for the fabric part, and having a third opening adjacent to the rigid part that communicates with the second opening;
• the fabric part having a first surface that is adjacent to an outer surface of the elastic part, and a second surface away from the elastic part, wherein an inner edge of the fabric part is adjacent to a fourth opening and has at least a portion that is larger than the fourth opening, such that both the elastic part and the fabric part are configured to jointly contact the face of the user along a connection between the inner edge and the elastic part of the fourth opening, and wherein an outer edge of the fabric part is away from the fourth opening;
• and
• an adhesive layer positioned between the outer surface of the elastic part and the first surface of the fabric part that connects the elastic part and the fabric part;
• wherein a connection between the elastic part and the fabric part via the adhesive layer is configured to be removably attachable and detachable, and an adhesive force provided by the adhesive layer to the fabric part is greater than a weight of the fabric part.