Patent ID: 6120533
Filing Date: 2000-09-19
Classification: A61F

Abstract:
A system for maintaining the patency of a blood vessel of a human body, the system comprising:a flexible guide wire;a stent delivery catheter in the form of an elongated cylindrical tube having a distal section and having a longitudinally directed central lumen for slideable insertion therethrough of the flexible guide wire, the stent delivery catheter also including a deployable radioisotope stent mounted onto the distal section of the cylindrical tube and a proximal radioactive marker band mounted just proximal to the stent and a distal radioactive marker band mounted just distal to the stent; anda balloon angioplasty catheter having a distal section and having an inflatable balloon placed at the distal section of the balloon angioplasty catheter, the balloon angioplasty catheter being adapted to be placed co-axially over the guide wire and within the stent delivery catheter, the inflatable balloon being adapted to expand the radioisotope stent and both marker bands against the wall of a blood vessel when the inflatable balloon is inflated.