The anesthesia machine consists of the following components: rack, outer circuit, anesthesia ventilator, anesthetic vaporizer, flow meter, and monitoring system. The anesthesia machine consists of four main subsystems in terms of working principle: gas supply and control circuit system, respiratory and ventilatory circuit system, removal system, and a set of system functions and respiratory circuit monitors. Some anesthesia machines also have monitors and alarms to indicate the values and changes in certain physiological variables and parameters associated with gas and anesthetic concentrations in cardiopulmonary or breathing mixtures. Usually the manufacturer only provides less monitoring and alarm combinations for the standard products.
The anesthesia machine has a set of monitoring-related devices according to different configurations, such as monitoring airway, physiological aspects, concentration of anesthetic gas, and monitoring that can indirectly reflect the depth of anesthesia and muscle relaxation.
Most monitoring systems for anesthesia machines have only one platform with a basic monitoring device as the system. Monitoring includes: airway pressure, suction tidal volume, minute ventilation, respiratory rate, and related alarm systems. Additional monitoring required can be purchased separately and added to the system.
In addition, the anesthesia workstation needs to be equipped with an anesthesia information management system. This system can receive, analyze, and store information related to the clinical and administrative management of anesthesia, automatically collect the information of the monitor and automatically generate an anesthesia record sheet.