The central venous puncture model, in view of the high operational difficulty and high risk of this technique, has systematically solved a number of teaching and training problems. 

First of all, it provides trainees with a safe and repeatable practice platform, avoiding risks such as infection, bleeding and pneumothorax brought about by operating on real patients.

Secondly, the model truly reproduces the internal jugular vein, subclavian vein and related anatomical layers, helping trainees accurately understand the positioning of the body surface and the direction of blood vessels, and making up for the problems of abstraction and lack of spatial sense in book teaching.

Secondly, through designs such as simulated blood return and resistance feedback, the Angle, depth and technique of needle insertion are trained to enhance the success rate of puncture.

Meanwhile, the model alleviates the problems of limited clinical teaching resources and high teaching pressure, facilitating standardized training and assessment. It is of great significance for improving the safety and standardization level of central venous puncture operations.