Leak test closing plug and anesthesia machine for leak test and leak test method for circulating breathing circuit

摘要

PROBLEM TO BE SOLVED: To breathe in an anesthesia machine in a state where a circulating breathing circuit is closed by a closing plug used for a leak test of an anesthesia machine, gas is continuously sucked by gas sampling by an anesthesia gas analyzer, and the inside of the breathing circuit becomes excessive negative pressure. Prevents damage to components in the circuit. SOLUTION: A one-way valve is combined with a leak test closing plug to prevent excessive negative pressure by taking in outside air even if gas is sucked from the breathing circuit. [Selection diagram] FIG. 7