US Patent 9492641 Guidewire

A guidewire includes a core shaft including a distal end portion and a proximal end portion, an outer coil disposed so as to cover the distal end portion, and an inner coil disposed inside of the outer coil. The outer coil includes a first bent portion that is bent at a first angle in a first direction. The inner coil includes a second bent portion that is bent at a second angle in the first direction. The second angle is larger than the first angle.