| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive mask assembly for curing sleep respiratory disturbance.SOLUTION: A mask system (1) for curing sleep respiratory disturbance comprises: a headgear (20); a unit (30) including a shell and a cushion; a frame (40) capable of being mounted on the headgear so as to place the mask system on the head of a patient; a ring shape member (60); and a rotatable elbow (50) having a base end part formed so as to be engageable with both of the unit including a shell and a cushion, and the ring shape member. |
