套管, 插管
a thin tube inserted into a body cavity, duct, or vessel to drain fluid or administer medication
:
• The nurse inserted a cannula into the patient's arm for the IV drip.
护士将套管插入患者手臂进行静脉滴注。
• Oxygen was administered through a nasal cannula.
氧气通过鼻插管输送。
