公开(公告)号：US20160213874A1

公开(公告)日：2016-07-28

申请号：US15077515

申请日：2016-03-22

Applicant: ResMed Limited

Inventor： Aaron Samuel DAVIDSON ,  Robin Garth HITCHCOCK ,  Matthew EVES ,  David WORBOYS ,  Susan Robyn LYNCH

IPC: A61M16/06

Abstract: A cushion for a patient interface that delivers breathable gas to a patient includes a base wall structured to be connected to a frame, an underlying support cushion extending away from the base wall towards the patient's face in use, and a membrane provided to substantially cover at least a portion of the underlying cushion. The membrane is adapted to form a continuous seal on the patient's face. The underlying cushion has a spring-like connection with the base wall. The underlying cushion and/or base wall define a spring constant that varies along a length of the seal.