The children's thoracentesis training model is an important teaching aid for first aid and clinical skills training. It simulates the anatomical structure and tissue elasticity of children's breasts, providing learners with a safe and realistic practice environment. Its training process can generally be divided into the following steps:

First, the preparation stage. Check the overall condition of the model to ensure that the chest wall structure is intact and the puncture site is clearly marked. Prepare the necessary equipment, such as puncture needles, syringes, disinfectant cotton balls, etc., and keep the operating environment clean.

Secondly, positioning and disinfection. According to clinical requirements, trainees need to accurately locate the puncture point on the model (mostly in the intercostal space of the midaxillary line). Subsequently, a routine skin disinfection and towel spreading operation was simulated to cultivate a standardized sense of asepsis.

Third, puncture operation. The operator slowly inserts the needle at a predetermined Angle, and the touch will simulate the resistance and breakthrough sensation of the real chest wall. After entering the thoracic cavity, it can be confirmed whether the puncture was successful through suction or feedback devices.

Fourth, fluid aspiration or decompression training. According to different teaching objectives, the operation of pleural effusion extraction or pneumothorax decompression can be simulated to familiarize with the subsequent processing procedures.

Finally, conclude and organize. After the operation is completed, the puncture needle should be removed, the consumables properly disposed of, the model cleaned and stored to ensure its normal use in the next training.

Overall, the children's thoracentesis training model, through standardized process training, not only enhanced the trainees' operational skills but also strengthened their emergency response capabilities in clinical treatment.