Figure 1.

Digital version of the single-operator cholangioscope (DSOC) (SpyGlass, Boston Scientific Endoscopy, Marlboro, MA, USA). (A) The cholangioscope in its full length (214 cm) attached with a catheter cable (white catheter) to the cable connector (black star). (B) Details of the attachment strap (blue part), which allows for the cholangioscope to be fixed to the shaft of the duodenoscope; the Y-port adapter, with a working channel for accessory access (black star); and the irrigation–aspiration port (black cross). (C) Details of the tip of the cholangioscope, featuring two LED lights and two irrigation channels. (D) Details of the two wheels capable of four types of movement and the articulation lock.