Segmented metallic guidewires

US10695540B2 · kind B2 · utility

Assignee

• The United States of America, as represented by the Secretary, Department of Health and Human Services · US

Inventors

• Ozgur Kocaturk · Rockville, US
• Burcu Basar · Washington, US
• Robert J. Lederman · Bethesda, US

Key dates

• Filing date: Oct 19, 2015
• Grant date: Jun 30, 2020
• Expiry date: Mar 29, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3685
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Disclosed herein are embodiments of segmented metallic guidewires that are suitable for MRI catheterization. Disclosed guidewires comprise a plurality of short conductive metallic segments that individually are short enough such that they do not resonate during MRI. The conductive segments are electrically insulated from each other and mechanically coupled together end-to-end via connectors, such as stiffness matched connectors, to provide a sufficiently long, strong, and flexible guidewire for catheterization that is non-resonant during MRI.