Snares, Knives, and Scissors

Polyp snares and needle knives are invaluable tools for the performance of therapeutic endoscopy. Endoscopic scissors, though uncommonly used, are useful in very selected circumstances. Colonic polypectomy is one of the most commonly performed therapeutic endoscopic procedures. Needle knives are used most commonly for biliary cannulation, but are adaptable to a range of therapeutic interventions.