4A Naso Biliary Drainage Catheter (NBDC)
The Naso Biliary Drainage Catheter (NBDC) is an essential endoscopic accessory used in ERCP procedures for temporary external decompression of the biliary tree. By routing bile externally through the nasal cavity, the NBDC enables continuous monitoring, bile sampling, postoperative decompression, and radiological imaging without permanent stenting.