A device for simulating lung breathing

Abstract

The invention relates to the technical field of environmental aerosol measurement, and more specifically, to a simulated lung breathing device. The device includes a sealed box, a lung model, a gas sampling bag and an air pump, and the lung model and the gas sampling bag are arranged inside the sealed box and kept independent of each other; the lung model is connected with a lung pipeline leading to the outside of the sealed box The air pump is connected with a suction pipeline, and the suction pipeline is provided with a first valve and a second valve, and the first valve, the second valve, and the air pump form a series loop; the gas collection bag is connected to the suction pipeline, There is and is connected between the first valve and the second valve; the first valve and the second valve are three-way valves, and each maintains a valve port connected to the outside air of the sealed box; the air pump draws air from the gas collection bag, The gas collection bag shrinks, the air pressure in the sealed box becomes smaller, and the air flow enters the lung model from the lung circuit to complete the inhalation process; The lung circuit flows out to complete the exhalation process.

Description

technical field [0001] The invention relates to the technical field of environmental aerosol measurement, and more specifically, to a simulated lung breathing device. Background technique [0002] In recent years, my country's air pollution has become more and more serious, and severe haze weather has appeared in most areas. The research on human respiratory exposure has also attracted more and more attention. It is hoped that the gas composition and concentration, Particle size and concentration information. At present, there are problems such as high cost, long time, and ethics involved in using human body experiments. In order to more conveniently carry out experimental detection of lung respiration-related data, it is of great significance to study a simple simulated lung respiration device. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the present invention provides a device for simulating lung respiration, which...

AI Technical Summary

Problems solved by technology

At present, there are problems such as high cost, long time, and ethics involved in using human body experiments. In order to more conveniently carry out experimental detection of lung respiration-related data, it is of great significance to study a simple simulated lung respiration device.

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