Patent Number: 6,251,086

Title: Guide wire with hydrophilically coated tip

Abstract: A guide wire including a lubricous distal portion and a less lubricous intermediate portion proximal of said distal portion. One guide wire provides a highly lubricous distal portion with a hydrophilic layer and a less lubricous intermediate portion with a hydrophobic layer. Another guide wire provides a lubricous distal portion with a polymer tip that is itself hydrophilic. Yet another guide wire provides a less lubricous intermediate portion using a stainless steel coil helically wound around the tapering intermediate portion. The coil is preferably coated with a hydrophobic coating such as PTFE or silicone. The coil can either abut the distal portion proximal end or extend into the distal portion interior.

Inventors: Cornelius; Richard G. (Wayzdia, MN), Kelzenberg; Anthony (Watertown, MN), Urick; Michael J. (Rogers, MN), Reynolds; Brian R. (Ramsey, MN)

Assignee: SciMed Life Systems, Inc.

International Classification: A61L 31/10 (20060101); A61L 31/08 (20060101); A61B 005/00 (); A61M 025/00 ()

Expiration Date: 06/26/2018