| 摘要 |
A wire guide (10) has first (14) and second (18) por-tions with first (16) and second (20) diameters, respectively. The sec-ond portion is located distal of the first portion. A resilient loop (22) positions a distal end of the wire guide adjacent another section of the wire guide. A closure member maintains the distal end in a fixed po-sition relative to the remainder of the wire guide. An outer sleeve (80, 90) may be positioned around one or more parts of the wire guide. A radiopaque element may be secured to the outer sleeve.
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