The full-function central vein puncture and injection trunk model is an important practical training platform in clinical medicine and nursing teaching. By highly simulating the anatomical structures such as the internal jugular vein, subclavian vein and femoral vein, it truly reproduces the relationship between body surface landmarks and vascular course.

Students can systematically practice key steps such as puncture positioning, control of needle insertion Angle and depth, retraction confirmation and fixation maintenance in a safe environment, and fully master the operation process of central venous puncture and injection. The model supports repeated training and error correction, effectively reducing the clinical operation risks for beginners and decreasing the occurrence of complications.

At the same time, it helps to strengthen the concept of asepsis, improve emergency response and comprehensive judgment capabilities, and is applicable to graded teaching, skills assessment and standardized training. It is of great significance for improving the safety, success rate and teaching standardization of central venous operations.