Features：
1. Adult upper body, clear anatomical structure, sternal
notch, clavicle, rib, etc.
2. Include superior vena cava, internal jugular vein, carotid
artery,subclavian vein, palpable carotid artery pulse
3. Replaceable skin and blood vessel,
4. Perform subclavian vein and internal jugular vein puncture
5. Realistic feedback of resistance absence, extracting simulated
blood
6. Transfusion, parenteral alimentation treatment