Patent ID: 9126021
Filing Date: 2015-09-08
Classification: A61M

Abstract:
1. A guidewire comprising: a core shaft; an outer coil body that covers an outer periphery of the core shaft and includes a tapered coil portion and a uniform-diameter coil portion, the tapered coil portion having a diameter that decreases toward a distal end of the outer coil body, the uniform-diameter coil portion being positioned on a distal end of the tapered coil portion and having a uniform coil outer diameter; an inner coil body that is disposed inside the outer coil body and that covers a distal end portion of the core shaft; a first junction that joins a distal end of the inner coil body and a portion of the core shaft, the first junction being spaced a non-zero distance from a distal end of the core shaft toward a proximal end of the core shaft; a second junction that joins a proximal end of the inner coil body and the core shaft; a third junction that joins the distal end of the outer coil body and the distal end of the core shaft; a fourth junction that joins a proximal end of the outer coil body and the core shaft; and a fifth junction located in the tapered coil portion of the outer coil body and that joins the tapered coil portion of the outer coil body to the core shaft,