| 摘要 |
A medical guide wire 1 has a front helical spring 4 which is formed by two stranded wire units 41, 42 in a helically-wired spring configuration in which the two stranded wire units 41, 42 are further twisted in a helically-wired multiple spring configuration. This imparts an increased flexibility to the front helical spring 4, compared to the case in which a front helical spring is formed by a single wire to be diametrically identical to the front helical spring 4. With the favorable flexibility and sufficient torque-transmissibility, it is possible to reduce a risk of having a damage on a blood vessel upon inserting the medical guide wire 1 into the blood vessel.
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