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[Development of an Active Mechanical Lung for Simulating Human Pulmonary Ventilation]
Yueyang Yuan1,2, Lei Hu3, Zhongkun Xiao1
1School of Mechanical and Electrical Engineering, Hunan City University, Yiyang, 413099.
Summary
This study introduces an active mechanical lung that accurately simulates human breathing, overcoming limitations of passive devices. This innovation enhances respirator testing by providing a more realistic simulation of pulmonary ventilation.
Area of Science:
- Biomedical Engineering
- Respiratory Physiology
Context:
- Current passive simulated lungs, including the splint lung, have limitations in accurately mimicking human respiration.
- Existing devices cannot replicate spontaneous breathing, impacting respirator testing efficacy.
Purpose:
- To design and develop an active mechanical lung capable of simulating human pulmonary ventilation with greater accuracy.
- To overcome the limitations of passive simulated lungs in respirator function testing.
Summary:
- An active mechanical lung was designed featuring a 3D-printed respiratory tract, simulated lungs (air bags), and a mechanism simulating respiratory muscle work.
- A motor-driven piston creates alternating pleural pressure, generating active respiratory airflow within the simulated airway.
- Experimental results show the developed lung's airflow and pressure align with data from normal adults.
Impact:
- The developed active mechanical lung offers a more realistic simulation for respirator testing.
- This advancement is expected to improve the quality and reliability of respirator testing and development.
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