The model is used for patients parenteral alimentation treatment and care through central vein intubation, provides trainings of central vein intubation, related disinfection, puncture and fixing operation. Features: 1. Simulate normal adult male size, accurate and real anatomical structure, translucent design is conducive for sterical observation of internal skeleton, blood vessel, heart and part of lungs; 2. Transparent design for clear observation of internal jugular vein and subclavian venous channel; 3. Cutaneous covering in the puncture site of right side chest; 4. The heart part can be opened to see the tricuspid valve with red mark