Stent delivery catheter

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01)

Patent

CA 2527400

The delivery device comprises an external surface that is selectively expandable (42) to engage an interior surface of the tubular stent(10). Additionally the exterior surface may include ridges and valleys (48) that coincide with ridges and valleys define by the helical thread extending through the stent in order to provide a more secure engagement with the stent during delivery.

L'invention concerne un dispositif de pose d'un extenseur biliaire constitué d'un matériau thermoplastique et pourvu de nervures et rainures formées sur la surface externe de l'extenseur, ce qui donne une configuration hélicoïdale de type filetage. Ce dispositif de pose comprend une surface externe qui est sélectivement extensible pour venir en contact avec une surface interne de l'extenseur tubulaire. Cette surface externe peut comporter des nervures et rainures qui coïncident avec les nervures et rainures définies par le fil hélicoïdal s'étendant sur l'extenseur afin d'assurer un emboîtement plus sûr avec l'extenseur lors de la pose.

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