classical trachea cannula training model

Product introduction: Head model designed specially for trachea cannula training. Vivid anatomic site such as teethl, tongue and gargareon in cavitas orisl,and glottisl,epiglottisl throatl,arytenoid and vocal in respiratory tract. Do the training of trachea cannula from cavitas nasi and cavitas oris. Simulate to exercise cleaning the foreign matter and excretion in respiratory tract. Correct position for trachea cannula is head back. Slinky transparent base isavailable. Carotid pulse can be touched. Do the sellick training though pressing annular cartilage, changing the position of air passage and closing esophagus.