A system is provided to effectively position a stent within a vessel. Thesystem includes adelivery catheter and a core wire extend through the catheter. The core wireincludes anengaging surface region and a capture member disposed thereon, which cooperateto engage astent such that the stent is able to be advanced or retracted with theadvancement or retraction ofthe core wire. The engaging surface region and the capture member cangenerally be configuredto engage the stent when a portion of the stent is disposed within the lumenof the catheter, andrelease the stent when no portion of the stent is within the lumen.
