Patent ID: 8820327
Filing Date: 2014-09-02
Classification: A61M,B29C,B29L

Abstract:
1. A cushion for a breathing mask, comprising: an elastomeric sealing lip having an outer surface adapted to contact a patient's face when the cushion is worn by the patient; a cushion-mounting portion adapted to be provided to a mask base body; and an elastomeric mid-cushion section provided between the elastomeric sealing lip and the cushion-mounting portion, wherein at least a portion of the elastomeric mid-cushion section includes a bellows structure with a first leg adjoined to a second leg at a first vertex, the first leg extending from the cushion-mounting portion to the first vertex and the second leg extending from the first vertex to the sealing lip, at least one of the first and second legs comprising an indentation on an interior elastomeric surface of the bellows structure.