Patent ID: 8485192
Filing Date: 2013-07-16
Classification: A61M,A62B,Y10T

Abstract:
1. A cushion for a patient interface that delivers breathable gas to a patient, the cushion comprising: a base wall structured to be connected to a frame; an underlying cushion extending in a direction away from the base wall and towards the patient's face in use; and a membrane provided to substantially cover at least a portion of the underlying cushion, the membrane adapted to form a continuous seal on the patient's face, wherein the membrane includes a nasal bridge region, a pair of cheek regions, and a chin region adapted to form a continuous seal on the patient's nasal bridge region, pair of cheek regions, and chin region, respectively, a spring-like structure configured to, at least in part, define displacement of the cushion with respect to a force applied from the frame, wherein the cushion is a full-face cushion and includes a nasal bridge region, a pair of cheek regions and a chin region, wherein the underlying cushion includes a nasal bridge region and a pair of cheek regions, and wherein the underlying cushion is absent in at least a portion of the chin region of the cushion such that the cushion has a single-walled construction formed by the membrane in the chin region of the cushion.