| 摘要 |
In a guide wire ( 1 ), a core line ( 2 ) has a proximal side wire ( 4 ) and a distal side wire ( 5 ), the latter of which is to be connected to a front end of the proximal side wire ( 4 ). The distal wire ( 5 ) is smaller in rigidity and superior in restitution than the proximal side wire ( 4 ). A concave portion ( 51 ) is provided on either the distal end surface of the proximal side wire ( 4 ) or a proximal end surface of the distal side wire ( 5 ). A convex portion ( 41 ) is provided on the other side wire among the distal end surface of the proximal side wire ( 4 ) and the proximal end surface of the distal side wire ( 5 ) The concave portion ( 51 ) and the convex portion ( 41 ) are interfit together, and pressure bonded by means of swaging or drawing procedure. This enables a manufacturer to sufficiently bond the distal side wire ( 5 ) and the proximal side wire ( 4 ) at a portion terminated in less than 100 mm from a distal end ( 11 ) of the guide wire ( 1 ), thus imparting a good restitution to the distal end ( 11 ) with a good supportability and torque-transmission maintained respectively.
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