Patent ID: 8636006
Filing Date: 2014-01-28
Classification: A61B,A61M

Abstract:
1. A mask comprising: a mask body for connection with a supply of breathable gas; and a compliant patient interface defining at least a portion of a breathing chamber, said interface including a frame, said frame being of resilient material and having a first membrane, the first membrane including a first molded rim disposed within the breathing chamber and extending along at least a portion of an inner perimeter of the frame, said frame having a front portion with an edge structured to be coupled to the mask body; and a second membrane of resilient material, said second membrane having a second molded rim, said second membrane rim spaced an open distance from said first membrane rim along an entire length of the second membrane when the mask is not in use, a portion of said second membrane rim forming a face contacting seal, wherein the substantially full perimeter of the second molded rim is provided in covering yet spaced relation to the first molded rim, wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, and wherein the first and second membranes are formed as a one-piece unit.