Medical device with expandable tip

摘要

A catheter for use with at least two different sizes of wire guides is described. The catheter includes a wire guide lumen sized to receive a first wire guide of a first diameter. The catheter may also include a tip lumen that extends in a distal direction from a first opening in communication with the wire guide lumen to a second opening. The first opening is sized to receive the first wire guide, and the second opening is sized to receive a second wire guide of a smaller diameter than the first wire guide. The catheter also includes one or more longitudinal expansion features capable of radially expanding the tip lumen to receive a wire guide of a diameter up to the first diameter through the second opening. An adapter that may be attached to the catheter by a medical professional is also described.