Reinforcing member for a patient interface

A patient interface comprising:

• a frame;
• a cushion having a non-face-contacting portion connected to the frame and a face-contacting portion adapted to engage the patient's face in use, the face-contacting portion including a side wall and a flexible membrane extending from the side wall;
• and
• a reinforcing member provided to at least a portion of an interior and/or exterior surface of the side wall of the cushion, the reinforcing member providing reinforcement to the side wall of the cushion to at least limit lateral expansion of the cushion in use,
• wherein the reinforcing member includes at least one reinforcing rib integrally molded with the side wall of the cushion,
• wherein the cushion includes a gusset portion that interconnects the non-face-contacting portion and the face-contacting portion.

A cushion for a patient interface, comprising:

• a non-face-contacting portion adapted to be connected to a frame;
• a face-contacting portion adapted to engage the patient's face in use;
• and
• a gusset portion that interconnects the non-face-contacting portion and the face-contacting portion,
• the face-contacting portion including a side wall and a flexible membrane extending from the side wall, and
• a reinforcing member including multiple thickened reinforcing sections or ribs provided to at least a portion of an interior surface of the side wall, the reinforcing member providing reinforcement to the side wall of the cushion to at least limit lateral expansion of the cushion in use.