Medical guidewires for tortuous vessels
AssigneeMIVI Neuroscience, Inc.
InventorsJames Pokorney, Matthew F. Ogle
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Abstract
Three groups of guidewire embodiments are described with particularly suitable structures for navigating circuitous vessels, especially blood vessels of the brain. Some of the guidewires have a hyperbolic taper that provides desired flexibility. In some embodiments, an integrated guide structure provides for extension in the blood vessel of a corewire to provide for extended reach of the guidewire. In further embodiments, the guidewire has a flexible tip that can be guided directly by the flow in the vessel.
Claims13
A guidewire comprising a solid wire of a biocompatible metal, having a length from about 90 cm to about 300 cm, a proximal diameter from about 0.0075 inches (in) to about 0.03 in, and comprising a taper with an approximately hyperbolic tangent shape along a distal third of the guidewire length forming a reduced diameter of the wire, wherein the hyperbolic taper has a length from about 10 cm to about 60 cm.
Dependencies are inferred from the claim text.