Features：
1. Standard patient positions, realistic texture
2. Accurate anatomical structure, clavicle, armpit, ribs
and intercostal space can clearly palpable to locate
and determine the puncture site
3. Practice liver abscess puncture, guided by voice
indication, correct operation has realistic feedback
with sense of empty and simulated liver abscess can
be extracted
4. Thorax cavity puncture, percussion confirmation,
realistic feedback, pleural fluid extraction
5. Electronic monitoring, voice alert