Views: 8 Author: Site Editor Publish Time: 2023-09-19 Origin: Site
PTCD stands for percutaneous transhepatic cholangiography drainage. It is a minimally invasive procedure to drain bile from the biliary system.
The key components of a PTCD introducer system are:
- Chiba needle - A thin needle used to access the liver and bile ducts percutaneously (through the skin). It allows a guidewire to be inserted into the bile duct.
- Guidewire - A thin flexible wire that is inserted through the Chiba needle and manipulated into the bile duct. It acts as a rail to guide the drainage catheter into place.
- Dilators - Graduated dilators are passed over the guidewire to enlarge the tract created by the Chiba needle to accommodate the drainage catheter.
- Sheath - A large bore sheath is placed over the final dilator and provides access to the bile ducts.
- Drainage catheter - A multi-sidehole catheter (usually 8-12 Fr) is inserted through the sheath and into the bile ducts to provide internal-external bile drainage.
The introducer set contains all the components needed to gain percutaneous access into the bile ducts and insert an internal-external drainage catheter. It allows bile to drain out of the body into a collection bag, relieving biliary obstruction.
