Patent ID: 6723108
Filing Date: 2004-04-20
Classification: A61B

Abstract:
A vascular embolization system for treating a defect in a blood vessel comprising:a catheter having a proximal section, a distal section and an outer wall defining a lumen therethrough; a push rod slidably disposed within the lumen of said catheter having a proximal end and a distal end; and, an embolization device comprising an elongated coil having a lumen and a cylindrical foam sleeve disposed about said coil and extending into the lumen of the coil, said cylindrical foam sleeve having a hydrated normal expanded diameter and a smaller constrained diameter such that when unconstrained and hydrated said cylindrical foam sleeve returns to the normal expanded diameter; said embolization device being disposed within the lumen at the distal section of said catheter, the distal end of the push rod engages the embolization device such that distal movement of the push rod causes the embolization device to exit the lumen of the catheter at a pre-selected position within the blood vessel.