Key words: guide extension catheter, coronary interventional procedure. This device represents an innovation in the category of guide extension catheters. It is available in 6 F (0.056” inner lumen) and 7 F (0.062” inner lumen). The pushwire also tapers from proximal to distal where it connects with the catheter. The bevel is long, gradually transitions from the catheter to the pushwire, and has a polymer coating, which reduces potential difficulty with passing and delivering stents. Interventional Cardiologist The GuideLiner is designed for multiple clinical uses such as deep-seating for coaxial alignment & backup support, deep-seating for distal device delivery and deep-seating for selective delivery of contrast. Measuring 40 mm and comprising 3 parts: the portion that connects with the catheter, a polymer semi-circular tube and a beveled end. The GuideLiner makes some impossible cases possible and difficult cases easier.
It has a solid, round pushwire that confers greater force and pushability than other types of pushwires or pushtubes (some are flat others round and hollow), minimizing the risk of kinking. Interventional cardiologists use the GuideLiner in coronary catheterization procedures, to assist in gaining access to difficult-to-reach portions of the. The inner surface of the catheter has a polytetrafluoroethylene coating (PTFE) that reduces friction when devices are passed through it. The distal segment has a 21 cm hydrophilic-coated jacket that helps safely improve navigation and glide inside the coronary artery. The polymer tip measures 2 mm (it has a radiopaque marker) and is produced by extrusion its flexibility allows deflections that adapt appropriately to the tortuosity of the coronary artery, to calcifications, and to lesions encountered in the coronary lumen, without causing dissection. The distal portion is more flexible than the proximal portion. The catheter has a coil-based structure, unlike others which contain mesh. The GuideLiner® catheter (Vascular Solutions, MN, USA) is a monorail guide catheter extension that facilitates safe and effective delivery of balloons and/or stents within challenging and complex coronary anatomy when conventional techniques have failed. The characteristics of the different parts of the device are as follows: Its advantage over other available extension catheters is that its structure differs to allow a highly safe and effective catheter release in distal portions of the coronary arteries. A new guide extension catheter named Telescope (Medtronic) has just been released on the market, and we have already tested it.
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