导管

导管	dǎo guǎn	duct; pipe; conduit / (botany) vessel / (medicine) catheter
导	dǎo	to transmit / to lead / to guide / to conduct / to direct
管	guǎn	variant of 管
管	Guǎn	surname Guan
管	guǎn	to take care (of) / to control / to manage / to be in charge of / to look after / to run / to care about / tube / pipe / woodwind / classifier for tube-shaped objects / particle similar to 把 in 管...叫 constructions / writing brush / (coll.) to / towards