Views: 51 Author: Site Editor Publish Time: 2022-10-31 Origin: Site
The anesthesia machine sends anesthesia into the patient's alveoli through a mechanical circuit to form an anesthetic gas partial pressure. After dispersing into the blood, it directly inhibits the central nervous system, thereby producing the effect of general anesthesia. This article will introduce the relevant knowledge of anesthesia machines, hoping to help everyone.
Classification of anesthesia machines.
The company has anesthesia machine products.
Air anesthesia machine
The device is light and suitable, can directly use air and oxygen as carrier gas, can perform assisted breathing and controlled breathing, and can meet various surgical requirements.
The working principle of the air anesthesia machine is: after the patient completes anesthesia induction, the air anesthesia machine is connected to a closed mask or tracheal tube. When inhaling, the anesthetic mixture gas enters the patient's body through the opened inspiratory valve; when exhaling, the expiratory valve is opened, and the inspiratory valve is closed at the same time, exhaling the exhaled gas. When using assisted or controlled breathing, a collapsible bellows can be utilized. Press down when inhaling and pull up when exhaling to ensure that the patient has sufficient ventilation. At the same time, according to actual needs, adjust the ether switch to maintain a stable level of anesthesia.
The disadvantage of the air anesthesia machine is that the concentration of ether is low, which can only be used as the maintenance of anesthesia, and the consumption of ether is large, which is easy to cause environmental pollution.
DC anesthesia machine
The DC anesthesia machine is composed of high pressure oxygen, pressure reducer, flow meter and anesthetic liquid vaporizer.
Circulating closed anesthesia machine
The air anesthesia machine supplies the patient with a one-way flow of anesthesia gas mixture at a low flow rate through the escape valve (door). Exhaled air enters the CO2 absorber through the expiratory valve for reuse. Its structure is mainly composed of oxygen supply and nitrous oxide device, gas flow meter, evaporator, CO2 absorber; one-way valve, breathing pipeline, outgas valve, storage bag, etc. Modern anesthesia machines are also equipped with ventilation. Airway pressure, expiratory flow, end-tidal CO2 concentration, inhalation anesthetic concentration, oxygen concentration monitor, hypoxia alarm and hypoxia-nitrous oxide automatic protection device.
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