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  • Angioplasty vascular catheters designed to dilate a stenotic artery located in the peripheral vasculature by controlled inflation of a distensible balloon. These catheters usually consist of a coaxial double-lumen tube with radiopaque markers with a proximal hub and an inflatable inner balloon at the distal tip. The central lumen is intended to pass the catheter over a guide-wire while the external lumen is used to inflate the balloon at the tip. Typically, a guide wire is peripherally inserted and advanced into the section of the peripheral artery requiring dilatation. The wire guides the dilating catheter into the stenotic artery, where the balloon is inflated across the stenosis to a predetermined maximal outer diameter, thereby enlarging the lumen. After balloon deflation, the catheter is withdrawn. These catheters are mostly used for the treatment of obstructions in the peripheral arteries and/or bypass vascular grafts. Dedicated catheters intended to perform angioplasty in the femoropopliteal and other large arteries of the peripheral vasculature (e.g., iliac and tibial arteries), for procedures under the knee and under the heel are available.
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