Systems and methods of annealing segments of a reinforcing coil of a catheter shaft

Abstract

The present disclosure describes systems and methods of annealing segment of a reinforcing coil of a catheter shaft. A method includes providing a liner and annealing a segment of a reinforcing wire such that the segment is between two unannealed regions of the reinforcing wire. The method also includes, after annealing the segment of the reinforcing wire, coiling the reinforcing wire over the liner to form a wire frame having a distal portion and a proximal portion. The wire is disposed more densely in the distal portion than in the proximal portion, and the segment of the reinforcing wire that is annealed is at least proximate to the distal portion of the wire frame. The method also includes securing a jacket over the wire frame and the liner.

Dependencies are inferred from the claim text.