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Vascular catheters designed to provide structural support to guidewires, facilitating guidewire advancement across difficult-to-cross vascular lesions (e.g., chronic total occlusions) by preventing the guidewire from bending or folding back on itself. These catheters typically have a tapered distal tip intended to allow the catheter to be advanced through the lesion in tandem with the guidewire. Vascular support catheters typically include proximal ports that allow for guidewire introduction or exchange and for saline irrigation or contrast media injection.
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