Method and device for calculating leakage flow rate of breathing machine, computer equipment and storage medium

• Main Authors: ZHANG MINGCHEN, ZHAO SIYUAN, WANG TAO, TANG CHAOGEN, LI MINGJU, GU XIAOLIANG
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2022
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The invention relates to a method for calculating leakage flow rate of a breathing machine. The method comprises the steps that the leakage rate of the breathing machine in a current period and the airway pressure of the breathing machine in the current period are obtained; an inelastic leakage coefficient of the current period and an elastic leakage coefficient of the current period are determined according to the leakage rate of the current period and the airway pressure of the current period; the inelastic leakage coefficient is used for indicating the leakage intensity related to the air leakage characteristic of the breathing machine, and the elastic leakage coefficient is used for indicating the leakage intensity irrelevant to the air leakage characteristic of the breathing machine; the airway pressure of the next period of the current period is acquired; and the leakage flow rate of the next period of the current period is determined according to the inelastic leakage coefficient of the current period,