| 摘要 |
The catheter (1) has a fastener (10) for firmly holding the wall (19) of vessel (18) when it is cut by optical fibers (3). The fastener (10) has an engaging element which can be a pin (20), roughened surface (23), spiral grooves (27), dendritic grooves (31), adhesive surface (34) or pointed pins (38). The fastener can further comprise a plate with perforations and/or a porous member. The catheter can be used in arteriotomies procedures.
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