A novel flexible endovascular stent for use in small and tortuous vessels

Neuroradiology. 2000 Jan;42(1):56-61. doi: 10.1007/s002340050015.


We assessed in vivo the mode of delivery, short-term patency and cellular response to a prototype endovascular stent. The stent is designed for delivery through a modified microcatheter and is retrievable with detachment from a delivery wire effected by electrolysis. We successfully deployed 12 stents in a range of sizes from 3-4 mm in straight and angled arteries of pigs. At control angiography 3 and 6 weeks later, nine arteries were patent, two occluded and one narrowed; patency was not related to vessel or stent size. The device shows promise as a stent for intracranial arteries since it can be delivered through microcatheters small enough for intracranial navigation and provides the operator with greater control than currently available self- or balloon-expanded stents.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Catheterization
  • Cerebral Angiography
  • Constriction, Pathologic
  • Intracranial Aneurysm / surgery*
  • Stents*
  • Swine