Apparatus and methods for positioning a vascular sheath

A - Human Necessities – 61 – B

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A61B 17/00 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2424793

An apparatus for positioning an introducer sheath includes a sheath having a distal end including first and second ports, the second port being located distally from the first port. An obturator is slidable within the sheath that includes a distal region that sealingly engages an interior surface of the sheath. The obturator includes first and second openings in the distal region that are alignable with the first and second ports in the sheath. A housing is slidable on the exterior of the sheath that releasably holds a closure element. The sheath may be inserted into an incision communicating with a blood vessel, the first and second ports providing backbleed indication of the depth of the insertion of the sheath into the vessel. The housing is actuated to deploy the closure element to engage and close the incision.

Un appareil de positionnement d'une gaine d'introduction comprend une gaine présentant une extrémité distale comportant des premier et second orifices, le second orifice étant situé distalement par rapport au premier orifice. Un obturateur peut coulisser à l'intérieur de la gaine et comprend une région distale venant en contact hermétique avec une surface intérieure de la gaine. L'obturateur comprend des première et seconde ouvertures dans la région distale, lesquelles peuvent être alignées avec les premier et second orifices dans la gaine. Un logement est coulissant sur l'extérieur de la gaine qui maintient libérable un élément de fermeture. La gaine peut être insérée dans une incision communiquant avec un vaisseau sanguin, les premier et second orifice donnant une indication d'hémorragie rétrograde de la profondeur de l'insertion de la gaine dans le vaisseau. Le logement est actionné pour déployer l'élément de fermeture afin de venir au contact de l'incision et de la fermer.

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