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:
CHENG, Qixin,成其新,ZHAO, Chen,赵晨,TANG, Chaogen,唐潮根
申请号：
CNCN2015/078481
公开号：
WO2016/155083A1
申请日:
2015.05.07
申请国别(地区):
CN
年份:
2016
代理人:
摘要：
A method for controlling ventilator oxygen concentration, comprising: acquiring the target oxygen flow rate of the ventilator； controlling the degree of opening of proportional valves (120, 510) in a critical state of valve opening, and acquiring the monitored oxygen flow rate under said degree of opening； on the basis of the target oxygen flow rate and the monitored oxygen flow rate, calculating the target electrical current value, and on the basis of the target electrical current value, adjusting the degree of opening of the proportional valves (120, 510), and acquiring the monitored oxygen flow rate under the adjusted degree of opening； determining whether the target oxygen flow rate and the monitored oxygen flow rate are the same, and if the target oxygen flow rate and the monitored oxygen flow rate are not the same, then entering the step of calculating the target electrical current value on the basis of the target oxygen flow rate and the monitored oxygen flow rate； otherwise, maintaining the degree of opening of the proportional valves (120, 510). Oxygen concentration can also be controlled under unsteady pressure. In addition, also provided are apparatuses (140, 530) and a system for controlling ventilator oxygen concentration； a ventilator oxygen control system without pressure reduction valves reduces the volume and mass of ventilator oxygen concentration control, and is suitable for use in a portable high-standard ventilator.L'invention concerne un procédé pour réguler la concentration d'oxygène d'un ventilateur, comprenant les étapes consistant à : acquérir le débit d'oxygène cible du ventilateur ； ajuster le degré d'ouverture de valves proportionnelles (120, 510) dans un état critique d'ouverture de valve, et acquérir le débit d'oxygène contrôlé sous ledit degré d'ouverture ； sur la base du débit d'oxygène cible et du débit d'oxygène contrôlé, calculer la valeur de courant électrique cible, et sur la base de la valeur du courant électrique cible, ajuste
