Central Venous Catheter Kit - Triple Lumen. These long-term catheters have been the standard of critical care in human medicine for many years. The catheters are placed in the jugular vein using a technique called Seldinger. It uses a guide wire system. Non-reactive polyurethane catheter: can be left in place for extended use i.e. 3-4 weeks. Triple lumen catheters available in three sizes. Allows administration concurrently of different IV medications. Kit consists of: Polyurethane radiopaque catheter with clamp, introducer needle, vessel dilator, guide wire, injection caps, 5ml syringe and illustrated directions. Sizes available: 5.5Fr x 13cm, 7Fr x 20cm or 7Fr x 30cm.