| 摘要 |
A multi-functional wire guide assembly includes an elongate tubular housing having a length and defining a lumen extending from an open proximal end of the elongate tubular housing to an open distal end of the elongate tubular housing. A first mandril is positioned within the lumen, extends a majority of the length of the elongate tubular housing, and has a fixed position relative to the elongate tubular housing. A second mandril is positioned within the lumen, has a length greater than the length of the elongate tubular housing, and is axially movable relative to the elongate tubular housing. The multi-functional wire guide assembly has a first configuration in which a distal tip of the second mandril is proximally spaced from a distal segment of the elongate tubular housing and a second configuration in which the distal tip of the second mandril is axially aligned with the distal segment.
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