Contact

The Importance of Biliary Stents

The biliary system has the functions of secreting, storing, concentrating and transporting bile, and plays an important role in regulating the discharge of bile into the duodenum.


Malignant biliary obstruction caused by malignant tumors such as cholangiocarcinoma, liver cancer, pancreatic cancer and metastatic cancer has a high incidence. Usually, the cancer is already at an advanced stage when it is discovered. Placing biliary stents into the stenosis or obstruction is a good way to cure biliary obstruction.


1. The role of biliary stents placement in biliary reconstruction


In complex biliary tract reconstruction, the application of biliary stents should not be ignored, especially indwelling biliary stents should be considered in the case of unsatisfactory biliary reconstruction. Biliary stents can not only play the role of decompression and drainage, support, and facilitate the healing of the biliary tract, but also facilitate the observation of the situation of bile and postoperative cholangiography.


Studies have confirmed that indwelling stent tubes through anastomotic stents is a very important factor in avoiding biliary complications, and can play a role in reducing biliary complications, especially in complex and difficult biliary tract reconstruction. In the process of biliary tract reconstruction with liver transplantation, biliary stents may not be indwelled for patients with good biliary tract conditions. However, for some complex biliary reconstructions, different types of biliary stents can be selected according to different conditions during the operation. The aim is to facilitate the healing of the biliary tract and reduce complications of the biliary after liver transplantation.


2. Characteristics of nitinol alloy biliary stents


At present, the most widely used biliary stent is a braided mesh stent made of nitinol alloy, which is a straight cylinder in shape. In general, the nitinol shape memory alloy biliary stents are self-expanding. The expansion of stents can be observed during insertion, and a ballon dilation can be used when necessary. Nitinol alloy biliary stents are suitable for extrahepatic bile duct obstruction or stenosis caused by various malignant lesions. They have the following advantages:


(1) Nitinol self-expanding biliary stents have excellent biocompatibility and corrosion resistance, as well as unique memory characteristics.


(2) Biliary stents have good super-elasticity at body temperature, and can fluctuate with normal biliary peristalsis. So the biliary tract can remain unobstructed without discomfort.


(3) Both ends of biliary stents are small arcs, which will not damage the biliary tract wall. The operation is simple and the curative effect is definite.


(4) It can prevent the blockage of stents caused by bacterial infection and bile mud deposition.

Relate Blogs

  • Intestinal Stent: the Way of Life Again

    Intestinal Stent: the Way of Life Again

    March 11, 2021Heart stents are familiar to the public, but stenting in the intestine is a new thing. With the development of medical technology, now there occurs a more advanced "intestinal stent" treatme...view
  • How Much Do You Know About Tracheal Stent Placement?

    How Much Do You Know About Tracheal Stent Placement?

    May 11, 20211. Methods of tracheal stent placementCurrently, there are three methods for tracheal stent placement. The first method is guided by the fiberoptic bronchoscope, and the stent is placed under X-ray fl...view
  • How Much Do You Know About Disposable Cell Brushes?

    How Much Do You Know About Disposable Cell Brushes?

    March 11, 2021The single-use cytology brushes are composed of a thumb ring, catheter, long rivet head, positioner, sliding handle, short rivet head, sheath, guide wire, brush head, and connecting tube. It is a sing...view
  • A Brief Analysis of Disposable Biopsy Forceps

    A Brief Analysis of Disposable Biopsy Forceps

    March 11, 20211. Details of the Use of Disposable Biopsy ForcepsThe most critical thing for the use of disposable biopsy forceps is the mastery of strength. Generally, during the operations with forceps, you can u...view
  • The Knowledge of Intestinal Stent

    The Knowledge of Intestinal Stent

    March 11, 2021In recent years, there has been a gradual increase in the number of domestic and foreign reports on the use of various metal stents as intestinal luminal support for the treatment of malignant obstruc...view
  • What Are the Types of Tracheal Stents?

    What Are the Types of Tracheal Stents?

    May 11, 20211. Introduction of the tracheal stentTracheal stent placement is one of the important methods for the treatment of airway stenosis, which can quickly relieve dyspnea and improve clinical symptoms. The...view