| 摘要 |
The lumen diameter reference guidewire comprises: a central core wire; a coiled spring wire surrounding a distal portion of the core wire; a tip member; the coiled spring wire being fixed at its distal end to the tip member; and, the guidewire having in an distal area thereof proximal of the coiled spring wire, a plurality of markers which are highly radiopaque, each marker having the same precise length and the distance between adjacent markers varying from marker to marker.
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