Closed anaesthesia mask capable of preventing anaesthesia gas from escaping

Abstract

The invention relates to the field of anaesthesia auxiliary equipment, in particular to a closed anaesthesia mask capable of preventing anaesthesia gas from escaping. The closed anaesthesia mask comprises a mask body, a vent pipe and an air suction pipe, both the vent pipe and the air suction pipe are connected to the mask body through a breathing valve, and the breathing valve can automatically control the on-off of the vent pipe and the air suction pipe and the inner cavity of the mask body along with respiration of a patient; the breathing valve comprises a rigid pipe with one closed end and one opened end and a light foam ball arranged in the rigid pipe in a sliding mode; and the inner cavity of the rigid pipe is divided into a first cavity part and a second cavity part by the light foam ball, the first cavity part and the second cavity part are connected through a bypass pipe, and both a connecting port of the vent pipe and the second cavity part and a connecting port of the air suction pipe and the second cavity part can be blocked by the light foam ball sliding to the corresponding position. The closed anaesthesia mask can avoid various problems caused by the escape of anesthesia gas in the anesthesia process, and is simple in structure, easy to realize and convenient to control.

Description

technical field [0001] The invention relates to the field of anesthesia auxiliary equipment, in particular to a closed anesthesia mask which can prevent anesthesia gas from escaping. Background technique [0002] Inhalational anesthesia refers to an anesthesia method in which anesthetics are inhaled through the respiratory tract to inhibit the central nervous system, causing the patient to temporarily lose consciousness without feeling pain all over the body. It is the main method of general anesthesia. The depth of anesthesia is related to the partial pressure of the drug in the brain tissue. When the anesthetic drug is excreted from the body or metabolized in the body, the patient gradually regains consciousness without any sequelae. Because inhalation anesthesia has less metabolism and decomposition in the body. Most of them are excreted from the lungs in their original form, so inhalation anesthesia is easy to control, relatively safe and effective, and is a commonly us...

AI Technical Summary

Problems solved by technology

Since the inner cavity of the anesthesia mask is also in a positive pressure state during the patient's exhalation process, the anesthesia gas will inevitably escape under the cooperation of the positive pressure of the anesthetic gas.

On the one hand, the escape of anesthetic gas will have an impact on the surgeon, which may lead to a decline in the doctor's ability to respond and concentrate, and bring unnecessary risks to the surgical process; on the other hand, the uncontrolled escape of anesthetic gas will cause the Wasteful, and it is difficult to accurately measure the inhalation volume of patients, and it is impossible to accurately anesthetize patients with individual differences

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