Balloon catheter and stent delivery system.

摘要

A stent delivery system for a balloon expandable stent 2 comprises a balloon catheter 1 with a tubular shaft 3 and an elongated dilatation balloon 5. The tubular shaft 3 comprises a guidewire lumen 8 with an entry 9 for the guidewire 10 distal of the balloon 5 and an exit 11 for the guidewire proximal of the balloon. Means for preventing expansion of balloon segments comprise a sleeve 12 mounted on the tubular shaft with a distal end 14 surrounding a portion of the proximal end 6 of the balloon and a proximal end 13 removably attached to a portion of the tubular shaft.