Patient interface

Abstract

A patient interface including a headgear and a frame assembly is provided. The headgear is for maintaining the patient interface on a head of a patient. The frame assembly is for connecting to the headgear, and includes a main frame, and two side extension arms respectively extending from two sides of the main frame. When no force is applied to the side extension arm, an upper edge of a cheek contact section of the extension arm is closer to a mask central axis of the patient interface than a lower edge, so that the upper edge of the cheek contact section is away from an apex of a cheekbone of the patient when the patient interface is worn. The patient interface of the present invention better complies to a face by using the two side extension arms that conform to a profile of positions of upper halves of cheekbones of the face, and provides effects of good support and stability as well as dispersed weight and pressure.

Dependencies are inferred from the claim text.