Guidewire with an improved distal end. A guidewire with an improved distal end may include a core wire, a solder tip disposed at a distal end of the core wire, a radiopaque inner coil coupled to the distal end of the core wire, an outer coil disposed along the length of the core wire, and a distal hub...http://www.google.fr/patents/US7998088?utm_source=gb-gplus-shareBrevet US7998088 - Guidewire tip construction
