cannula

n. 套管
【医】 套管, 插管

cannula 也作 can.u.la

n.（名词）
【复数】 can.nu.las 或 can.nu.lae [-lô.]
A flexible tube, usually containing a trocar at one end, that is inserted into a bodily cavity, duct, or vessel to drain fluid or administer a substance such as a medication.
套管，插管：一根通常一端有套管的柔韧管子，被插入体腔、导管或血管以排出液体或服用一种物质，如药物等

来源：
Latin [diminutive of] canna [reed] * see cane
拉丁语 [] canna的小后缀 [芦苇] *参见 cane