Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
Cannulation,Cannulations,Catheterizations
D004322
Drainage
The removal of fluids or discharges from the body, such as from a wound, sore, or cavity.