Patent ID: 6146323
Filing Date: 2000-11-14
Classification: A61F,A61N

Abstract:
A stent delivery catheter system for placing a radioactive stent within a stenosis of a vessel in a human body, the system comprising:a flexible guide wire;a stent delivery catheter; the stent delivery catheter having a distal portion; the stent delivery catheter having an angioplasty balloon adapted for inflation by injectable inflation fluid, the balloon being located at the distal portion of the stent delivery catheter and having a proximal and a distal end; the stent delivery catheter having a radioactive stent mounted co-axially around the angioplasty balloon; the radioactive stent having a proximal end and a distal end; the stent delivery catheter also having a proximal radioactive band and a distal radioactive band; the proximal and distal radioactive bands being generally thin walled and cylindrical; the proximal radioactive band having a distal end located in proximity to the proximal end of the radioactive stent; the distal radioactive band having a proximal end located in proximity to the distal end of the radioactive stent; the proximal and distal radioactive bands adapted to be moved in apposition to the vessel wall.