| 摘要 |
In a medical guide wire ( 1 ), a rigid portion ( 4 A) is located at a distal end of a helical spring ( 4 ), and the rigid portion ( 4 A) measures 0.5 mm or less which extends from a top end of a head plug ( 5 ) to a rear end of a portion in which the helical spring ( 4 ) is secured to the head plug ( 5 ), and an intermediary location ( 11 ) is secured to an intermediary boss portion ( 9 ) of a core line ( 3 ) to provide a loosely wound portion ( 8 ) from a rear end of the head plug ( 5 ) to the intermediary location ( 11 ) to be elastically expandable due to a clearence (C) appeared between line element turns of the loosely wound portion ( 8 ).
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