The main function of the pericardiocentesis and intracardiac injection training model is to help learners master the standard operation techniques of pericardiocentesis and intracardiac injection, and it is an important teaching device in first aid and clinical skills training. This model is designed based on the real anatomical structure of the human thoracic cavity and heart, marking key positions such as the heart, sternum, and intercostal Spaces, and can simulate the clinical operating environment.