Self-expanding peripheral stents are introduced into a blood vessel with a standard introducer system and delivered to the lesion with the aid of a guidewire. The stent is constrained within an inner catheter which, once the stent is in proper position, is pulled back and the stent is deployed. Self-expanding stents exert constant outward radial force until they reach their pre-set diameter. This is intended to force plaque against the arterial wall and improve blood flow.
Once proper stent placement has been confirmed, the stent delivery catheter, guidewire, and introducer sheath are removed, and the entry site is closed either with manual pressure or a percutaneous closure device.