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

Claim 3:
4. The ventilation-treatment apparatus according to claim 2, wherein
the first valve assembly comprises a first elastic member and the first elastic member is configured to be capable of, being compressed to allow the first valve body to move to the first opening position when the first valve body is under a pressure, and, being restored to drive the first valve body to move to the first closing position when the first valve body is released from the pressure; and
the second valve assembly comprises a second elastic member, and the second elastic member is configured to be capable of being compressed to allow the second valve body to move to the second opening position when the second valve body is under a pressure, and, being restored to drive the second valve body to move to the second closing position when the second valve is released from the pressure.