Anesthesia breathing equipment and breathing circuit compliance detection method

Abstract

The embodiment of the invention provides anesthesia breathing equipment and a breathing circuit compliance detection method.The anesthesia breathing equipment comprises a breathing circuit, a pressure sensor, a flow sensor, an airflow driving device and a controller, the controller is used for controlling the airflow driving device to convey gas to the breathing circuit, and the pressure sensor is used for detecting the compliance of the breathing circuit; the air pressure in the breathing loop is converted from the first preset air pressure to the second preset air pressure; acquiring a plurality of first flow sensing values, a plurality of first pressure sensing values and a pressure change value in the process of converting the first preset air pressure into the second preset air pressure, and acquiring a gas volume accumulated value in the process of converting the first preset air pressure into the second preset air pressure according to the plurality of first flow sensing values; according to the first pressure sensing value, the gas leakage amount of the breathing circuit in the process of converting the first preset air pressure into the second preset air pressure is calculated; according to the gas leakage amount, the gas volume accumulated value and the pressure change value, the compliance measurement value of the breathing circuit is obtained.

Description

technical field [0001] The present application relates to the technical field of medical devices, and in particular, to an anesthesia breathing apparatus and a method for detecting the compliance of a breathing circuit. Background technique [0002] In the control of anesthesia ventilator, it is necessary to monitor various signs of the patient. By correctly monitoring the air resistance (R value) of the patient's breathing circuit and the patient's lung compliance (C value), the anesthesia machine and ventilator ventilation can be effectively adjusted and controlled. The method is suitable for various situations under different signs and reduces the complications caused by patients using anesthesia machines and ventilators. [0003] Among them, the breathing circuit is a combined air circuit device connecting the anesthesia ventilator and the patient, delivering anesthesia mixed gas to the patient and returning the patient's exhaled gas, thereby realizing the normal exchang...

AI Technical Summary

Problems solved by technology

Traditional compliance detection is only calculated by tidal volume changes corresponding to pressure changes. For anesthesia breathing equipment with weak driving ability, it is difficult to maintain a constant flow rate output in a rigid environment, and the calculated compliance is inaccurate.

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