Patent ID: 11944749
Assignee: BMC MEDICAL CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. The ventilation-treatment apparatus according to claim 7, wherein the headrest is disposed with a protrusion, a slot is disposed at a top of the protrusion, the first gas hole is disposed in the slot, the first magnet extends in a circumferential direction of a slot opening of the slot, the second magnet extends along the periphery of the second gas hole, and the slot opening of the slot is sealable with the head band by attraction between the first magnet and the second magnet; or
the head band is disposed with a protrusion, a slot is disposed at a top of the protrusion, the second gas hole is disposed in the slot, the second magnet extends in a circumferential direction of a slot opening of the slot, the first magnet extends along the periphery of the first gas hole, and the slot opening of the slot is sealable with the headrest by attraction between the first magnet and the second magnet.