The invention discloses an
anesthesia machine system, comprising a gas source supply pipeline used for providing a gas source, a
breathing circuit connected with a patient, and an air supply
branch circuit, wherein a gas flow output end of the gas source supply pipeline and an air flow output end of the air supply
branch circuit are respectively connected with the
breathing circuit; the
breathing circuit is internally provided with a
pressure sensor used for measuring air pressure in the breathing circuit when the patient inhales; the air supply
branch circuit comprises an air box, a one-way valve and a proportional
electromagnetic valve which are sequentially connected by pipes along an air supply direction, wherein the opening degree of the proportional
electromagnetic valve is changed according to measurement parameters measured by of the
pressure sensor. The opening degree of the proportional
electromagnetic valve is continuously changed and is also promoted to be changed by the change of a numerical value of the
pressure sensor caused by neonatal
tidal volume;
anesthesia mixed gas is extruded by the pressure of
airflow produced by the air box for the patient to use; the
anesthesia machine system is accurate in control and wide in applicable people. The invention also discloses a control method of the anesthesia
machine system.