Polymer coated guidewire

(57) A summary guide wire or its portion is equipped with the core component etc. Which possess the continuous taper portion of the plurality which has the taper angle constituted so that a change alignment rigidity might be produced covering the direction position of Nagate of equipment. This equipment is equipped with the core part with the taper angle which changes continuously in order to produce the outline of the curve constituted so that the rigidity of the core which changes to alignment over the direction portion of Nagate of equipment might be produced again. One case of the operation is equipped with two or more roentgenopaque elements which it can be intermittent because of measurement with the ruler of the body internal structure under fluorescence fluoroscopy imaging, and continuous, or can be made into the form of the thin band of a corkscrew shape. Other cases of the operation have at least one polymer layer on the end of equipment.