| 摘要 |
In a medical guide wire, a core line securement portion ( 11 ) is provided in which the core wire ( 2 ) is fixed to an inner side of the helical coil body ( 3 ) so as to form a top leading end portion ( 10 ) between the core line securement ( 11 ) and the head plug ( 4 ). A flat plane structure ( 13 ) is formed in which the core wire ( 2 ) of the top leading end portion ( 10 ) gradually changes through stepped portions (S) so that the core wire ( 2 ) progressively reduces its thickness stepwisely while successively increasing its breadth stepwisely as approaching a foremost distal end of the top leading end portion ( 10 ). This provides an improved flexibility, sensitivity, torsibility and torque transmissibility with the flat plane structure ( 13 ) so as to be accessible to the diseased area with a high detective and ablative ability.
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