Patent ID: 8636007

Claim:
A patient interface system for delivery of a supply of air at positive pressure to the entrance of a patient's airways for treatment of sleep disordered breathing, comprising: a headgear assembly to provide a headgear tension force, said headgear assembly constructed and arranged to overlay a cheek region in use; an air delivery tube adapted to receive a supply of air at positive pressure; a pair of nasal pillows each having a frusto-cone shaped seal portion adapted to form a seal on an underside of a patient's nose in use in an area about a naris and a first decoupling assembly, said first decoupling assembly comprising a stalk, a first flexible region on the underside of the frusto-cone shaped seal portion and connected to said stalk and a second flexible region adjacent the base of the stalk; and a flexible base portion having a top portion to which said pair of nasal pillows is connected and having first and second lateral connectors, each of said lateral connectors being adapted to receive the headgear tension force from said headgear assembly, said flexible base portion having a lower portion opposite the top portion and adapted for interconnection with said air delivery tube, said lower portion forming a second decoupling assembly having a flexible portion configured to flex in response to forces applied thereto by the air delivery tube to decouple the forces from the pair of nasal pillows.