Abstract
An imitating lung device includes a first liquid accommodating layer, a first elastic member, an airway layer, a second elastic member and a second liquid accommodating layer. A liquid inlet, a liquid outlet and a gas vent are disposed on an outer surface of the first liquid accommodating layer, and a first liquid chamber is formed in an inner surface of the first liquid accommodating layer. The airway layer includes a plurality of air channels and a plurality of imitating alveolar regions. The imitating alveolar regions are communicated with the air channels. The air channels simulate a branched structure of the 15th generation to the 19th generation of a human lung, the imitating alveolar regions simulate a branched structure of the 20th generation to the 23th generation of the human lung. A second liquid chamber is formed in an inner surface of the second liquid accommodating layer. As such, the structure of the imitating lung device is similar to that of the human lung, and the imitating lung device can be used as an in vitro device for simulating human lung. Therefore, animal experiments can be reduced, and information corresponding to human body can be obtained.