Patent ID: 8303519
Filing Date: 2012-11-06
Classification: A61B,A61M

Abstract:
1. A guide wire which has an outer surface including a tapered distal end part and which is to be inserted into a patient's body through an endoscope including a hebel in a distal end part and used in a lumen, the guide wire comprising: an elongated core wire, which is made of a single wire and which has a distal end extending to a distal end of the guide wire, and a proximal end; a distal end part, which extends between a predetermined part and the distal end of the core wire and which is tapered toward the distal end; a proximal end part, which extends between the predetermined part and the proximal end of the core wire; a first marking located on the outer surface and visible through the endoscope, the first marking representing a position suitable for bending at the hebel, wherein the guide wire is more rigid in a proximal end side of the first marking than a distal end side, and configured to be reliably secured to the endoscope, when the guide wire is bend with the hebel in a state where the first marking is seen in a view filed of the endoscope; and a second marking located on the outer surface and visible through the endoscope, the second marking representing a guide to prevent the distal end part inserted in the lumen from slipping out of the lumen, wherein the second marking allows observation of a position where at least one of the flexibility and surface condition of the guide wire changes through the endoscope.