BMC MEDICAL CO., LTD;BMC MEDICAL CO.;北京怡和嘉业医疗科技股份有限公司; LTD
发明人:
ZHOU, Mingzhao,周明钊,WANG, Yajie,王亚杰,ZHUANG, Zhi,庄志
申请号：
CNCN2016/112690
公开号：
WO2017/114427A1
申请日:
2016.12.28
申请国别(地区):
CN
年份:
2017
代理人:
摘要：
Provided are an air passage control device (100) for use in a breathing mask (10) and a breathing mask apparatus. The air passage control device (100) comprises a valve assembly (210) and an adjustment mechanism (220). The valve assembly (210) comprises: a valve base (211)； a valve cover (212)； a valve core (213)； and an elastic member (214). The valve cover (212) is rotatably connected to the valve base (211) to form a valve cavity (215). The valve cavity (215) has an air flow path. The valve core (213) is located in the valve cavity (215) and can control the speed of an air flow passing through the air flow path. The elastic member (214) is located in the valve cavity (215) and disposed between the valve core (213) and the valve cover (212) to provide resistance against a movement of the valve core (213) in a predetermined direction. The adjustment mechanism (220) comprises an engagement member (221) and multiple position recesses (222). One of the valve base (211) and the valve cover (212) is provided with the multiple position recesses (222) arranged in a circumferential direction thereof, and the other is provided with the engagement member (221) thereon. The engagement member (221) engages at at least one of the position recesses (222). When the valve cover (212) rotates with respect to the valve base (211), the engagement member (221) can engage at an adjacent position recess (222). Upon adjusting a therapeutic pressure, the air passage control device (100) can provide feedback to a user by feel and sound, thereby performing a series of precise adjustments.L'invention concerne un dispositif de commande de passage d'air (100) à utiliser dans un masque respiratoire (10) et un appareil de masque respiratoire. Le dispositif de commande de passage d'air (100) comprend un ensemble soupape (210) et un mécanisme d'ajustement (220). L'ensemble soupape (210) comprend : une base de soupape (211)； un couvercle de soupape (212)； un noyau de soupape (213)； un élément élast
