Guidewire system

Abstract

A guidewire system having improved torque ability and shapeability for traversing tortuous vasculatures to reach a distant anatomy. The guidewire system may include a core wire having a proximal portion and a distal portion. The distal portion may be tapered along at least a portion of its length. The distal portion may include both a plurality of uniform diameter segments and a plurality of tapered diameter segments. One or more coils may be affixed to the core wire, such as an inner coil and an outer coil. A radiopaque marker may be affixed to a distal tip of the core wire for visualization by an imaging device. Alternatively, one or more coiled grooves may be cut into the core wire to perform the same function as the aforementioned coils. The entirety of the core wire, including any affixed coils, may be encapsulated in a polymer jacket.

Dependencies are inferred from the claim text.