Tearaway introducer sheath with hemostasis valve

Details Tearaway introducer sheath with hemostasis valve Tearaway introducer sheath with hemostasis valve

A - Human Necessities

61

M

A61M 39/06 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2711454

A tearaway introducer sheath assembly (100, 200) having an integrated valve (300). The valve is seated within a valve housing (222) defined by the hub portion (200) of the sheath (200). The valve (300) includes a pair of distally extending opposed side walls or flaps (324) extending to converge at a distal tip (328) having a virtual opening (334) there through. The valve further includes a pair of tensioners (340) along outer surfaces of the opposed side walls (324) that extend radially outwardly to engage and bear against the interior valve housing surface (230) to press the opposed side walls (324) together at the distal tip (328) for sealing, both when a dilator extends through the valve and sheath and afterward upon removal of the dilator.

La présente invention concerne un ensemble gaine dintroduction déchirable (100, 200) ayant une vanne (300) intégrée. La vanne est sise à lintérieur dun boîtier de vanne (222) défini par la partie de raccord (200) de la gaine (200). La vanne (300) comprend une paire de clapets (324) ou de parois latérales opposées sétendant dans le plan distal pour converger au niveau dun embout distal (328) doté dune ouverture virtuelle (334). La vanne comprend en outre une paire de dispositifs de serrage (340) positionnés le long des surfaces extérieures des parois latérales (324) opposées sétendant vers lextérieur dans le plan radial pour engrener et presser contre la surface intérieure du boîtier de vanne (230) afin de comprimer les parois latérales (324) opposées lune contre lautre au niveau de lembout distal (328) afin de les fermer, tant en présence dun dilatateur sétendant à travers la vanne et la gaine quensuite, lorsquon le retire.

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