EXPANSION DEVICES AND METHODS OF USE THEREOF

摘要

Devices, systems, and methods for facilitating access to and visualization of the pancreaticobiliary system are disclosed. In particular, the present disclosure relates to devices used to expand and/or maintain the papilla opening to facilitate access therethrough, e.g., to visualize, examine, diagnose, and/or treat the bile duct and pancreatic ducts. The devices may include an elongate body, an expansion element having a compressed configuration and an expanded configuration, and an outer sheath.

主权项

1. A method of accessing the pancreaticobiliary system, the method comprising:
introducing a distal end of an instrument into at least a portion of a duodenal papilla, the instrument including:
an elongate body having a proximal end, a distal end, and at least one lumen extending therebetween; andan expansion element circumferentially disposed around the elongate body, the expansion element having a compressed configuration and an expanded configuration; and deploying the expansion element into the expanded configuration, wherein in the expanded configuration, the expansion element expands against a wall of the papilla.