导尿管（dǎo nì） — urinary catheter

定義

A medical tube inserted into the body to drain urine from the bladder. 导 here means 'to guide/lead' (not 'to conduct electricity').

noun

urinary catheter

量詞 · 根

导尿管。
Yī shēng gěi bìng rén chā shàng le dǎo nì.
The doctor inserted a catheter into the patient.
导尿管。
Shǐ yòng dǎo nì xū yào zhù yì wèi shēng.
Using a catheter requires attention to hygiene.
导尿管。
Shǒu shù hòu tā xū yào dài zhe dǎo nì jǐ tiān.
After surgery, he needs to have the catheter for a few days.

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