title: New coaxial exchange guide wire with a variable-length tip.
abstract: A new coaxial exchange guide wire, which has a variable-length, flexible "J"-shaped tip for exchanging drainage catheters in both large and small structures, is described. The design provides a gradual transition from the softness of the tip to the stiffness of the cannula. The system is presently available in two sizes (0.89 mm [0.035 in.] and 0.64 mm [0.025 in.]) and can also be used as a catheter end-hole dilator.
mesh_terms: D001659:Biliary Tract; D002404:Catheterization / Q000295:instrumentation*; D002408:Catheters, Indwelling; D004064:Digestive System; D004322:Drainage / Q000295:instrumentation*; D006801:Humans; D011095:Polyethylenes; D011138:Polytetrafluoroethylene; D014551:Urinary Tract
chemical_list: D011095:Polyethylenes; D011138:Polytetrafluoroethylene