Clogging of biliary endoprostheses: a new perspective.

  title={Clogging of biliary endoprostheses: a new perspective.},
  author={P. P. L. O. Coene and Albert K. Groen and Jie-ming Cheng and M M Out and Guido N. J. Tytgat and Kees Huibregtse},
  volume={31 8},
Endoscopic palliation with biliary endoprostheses is now an established treatment for benign and malignant strictures of the biliary tree. These endoprostheses, however, tend to clog with time. We investigated this problem by undertaking in vitro studies on stents of different designs made of different polymer materials. The stent that performed best was then tested in an in vivo trial. There was a direct relation in vitro between the frictional coefficient of a polymer and the amount of… CONTINUE READING


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