An improved double-lumen biliary catheter for cholangiography

Area of Science:

• Gastroenterology and Hepatology
• Medical Device Development

Background:

• Bile duct stones (choledocholithiasis) pose diagnostic and therapeutic challenges.
• Current methods for cholangiography and stone extraction can be complex and inefficient.

Purpose of the Study:

• To introduce and evaluate a novel double-lumen biliary catheter.
• To assess the catheter's efficacy in cholangiography and bile duct stone extraction.

Main Methods:

• A prototype double-lumen biliary catheter was developed.
• The catheter was tested in four human cadavers for cholangiography and simulated stone extraction.

Main Results:

• The catheter produced excellent cholangiograms.
• It facilitated the formation and extraction of a cryoprecipitate coagulum from bile ducts without significant waste.
• The catheter aided in routine balloon catheter bile duct stone extraction.

Conclusions:

• The double-lumen biliary catheter is effective for both diagnostic cholangiography and therapeutic bile duct stone removal.
• This device offers a versatile solution for managing bile duct stones.
• Its utility spans diagnosis to treatment, potentially improving patient outcomes.