Patent ID: 8113202

Claim:
A patient interface device for use in delivering a flow of gas to an airway of a patient, the patient interface device comprising: a mask shell having a patient side and an outer side opposite the patient side adapted for receiving a flow of gas; a seal cushion including a first end portion defining a first perimeter and adapted to contact a first area of a patient's face to substantially seal therewith, and a second end portion opposite the first end portion, wherein a cavity is defined by the seal cushion, the cavity being adapted to receive a portion of the patient's face, and wherein the flow of gas communicates with the cavity; and a support cushion having a first end portion disposed outside at least a portion of the first perimeter and adapted to contact a second area of a patient's face and a second end portion opposite the first end portion, wherein the support cushion is separate and non-unitary with the seal cushion, and wherein the second end portion of the seal cushion and the second end portion of the support cushion are coupled to the patient side of the mask shell.