深圳市科曼医疗设备有限公司; LTD.;SHENZHEN COMEN MEDICAL INSTRUMENTS CO., LTD.;SHENZHEN COMEN MEDICAL INSTRUMENTS CO.
发明人:
LI, Zeng,李增,SHEN, Lianggang,沈良钢,TAN, Heng,谈恒
申请号：
CNCN2014/093662
公开号：
WO2016/086445A1
申请日:
2014.12.12
申请国别(地区):
CN
年份:
2016
代理人:
摘要：
Disclosed are breathing equipment (10) and an oxygen concentration detection mechanism thereof. The above-mentioned oxygen concentration detection mechanism is used for detecting the oxygen concentration of gas output from a main device. The oxygen concentration detection mechanism comprises a gating switch (220), a volume cavity body (240), a switch valve (260) and a oxygen sensor (280). Two gas inlets (222) of the gating switch (220) are respectively in communication with an oxygen channel (140) and an air channel (160). The volume cavity body (240) is in communication with an air outlet (224), the external atmosphere, and a gas mixture channel (180). The switch valve (260) is located between the volume cavity body (240) and the gas mixture channel (180), and between the air outlet (224) and the volume cavity body (240). The oxygen sensor (280) is connected to the volume cavity body (240). The oxygen sensor (280) is used for detecting the oxygen concentration of a gas inside the volume cavity body (240). The oxygen concentration detection mechanism is parallel on the main device. Oxygen or air is introduced into the volume cavity body (240) by the gating switch (220), and then the oxygen sensor (280) is calibrated. The calibration process can be performed when the main device is normally working, and improves the accuracy of the oxygen sensor (280).La présente invention concerne un équipement respiratoire (10) et un mécanisme de détection de concentration d'oxygène de celui-ci. Le mécanisme de détection de concentration d'oxygène mentionné ci-dessus est utilisé pour détecter la concentration d'oxygène de gaz délivré en sortie depuis un dispositif principal. Le mécanisme de détection de concentration d'oxygène comprend un commutateur de déclenchement (220), un corps de cavité de volume (240), une vanne de commutation (260) et un capteur d'oxygène (280). Deux entrées de gaz (222) du commutateur de déclenchement (220) sont respectivement en communication avec un cana
