Mechanical lithotripsy.

Endoscopic lithotripsy is a procedure used for the removal of large stones in the common bile duct that cannot be removed after sphincterotomy. This procedure causes fragmentation of large stones, which allows easier retrieval of stones by other instruments such as balloons or baskets. There are currently two types of mechanical lithotripsy: one type uses an instrument called a mechanical lithotriptor, and the second type uses an electrohydraulic lithotriptor. This article focuses on mechanical lithotripsy. Since it is vital for the operator of this equipment to understand its function, assembly, disassembly, and maintenance, specific guidelines are provided.