Introducer system having kink resistant splittable sheath

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/06 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2249616

An introducer system featuring a sheath which is kink resistant. Such a sheath thereby permits the sheath to be dramatically bent while still allowing a lead to be introduced therethrough. The kink resistance is provided by a composite construction of the sheath. In particular the sheath has at least one integral reinforcing fiber. In the preferred embodiment the reinforcing fibers are provided in a braided configuration. The sheath preferably is constructed to be readily split using a slitter in a longitudinal direction and thus permits the sheath to be removed from the venous system without having to withdraw the sheath over an end of the pacemaker lead. In an alternate embodiment the sheath is scored, including the reinforcing fibers, to thereby permit the sheath to be longitudinally split apart and removed from the venous system without having to withdraw the sheath over an end of the pacemaker lead.

Système d'introduction comportant une gaine résistant au vrillage et pouvant ainsi se plier de manière importante tout en permettant le passage et l'introduction d'un conducteur. La structure composite de la gaine lui confère sa résistance au vrillage. Cette gaine comporte notamment au moins une fibre de renfort intégrée. Dans le mode préféré de réalisation, les fibres de renfort présentent une configuration tressée. La gaine est conçue pour être fendue aisément à l'aide d'un fendoir dans le sens de la longueur, et peut donc être retirée du système veineux sans glisser sur une extrémité du conducteur de stimulateur cardiaque. Dans une variante, la gaine et les fibres de renfort sont entaillées, ce qui permet de fendre la gaine dans le sens de la longueur et de la retirer du système veineux sans la faire glisser sur une extrémité du conducteur de stimulateur cardiaque.

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