1. inserts a catheter (a thin tube) into a body cavity or vessel, typically the bladder, for medical purposes such as drainage or treatment
Usage: medical/clinical term; British English spelling (American English: catheterizes); third-person singular present tense

Examples

• The nurse catheterises the patient before surgery to monitor urine output.
• The doctor catheterises patients who are unable to urinate naturally.
• The procedure catheterises the urinary tract to relieve obstruction.
• She catheterises elderly patients as part of her daily clinical duties.
• The cardiologist catheterises the heart to perform a diagnostic angiogram.