Ablation catheter guidewire

Abstract

A guidewire includes a core member including a proximal portion having a first stiffness and a distal portion having a second stiffness less than the first stiffness. The guidewire further includes an electrical insulator encapsulating the distal portion of the core member and at least a portion of the proximal portion of the core member. The electrical insulator comprises a material configured to electrically insulate the core member from pulsed field ablation (PFA) energy delivered by a PFA catheter guided by the guidewire. The guidewire further includes electrode positioned along the distal portion.

Dependencies are inferred from the claim text.