Apparatus for closing tissue punctures

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01) A61B 17/064 (2006.01) A61B 17/08 (2006.01) A61B 17/128 (2006.01)

Patent

CA 2395235

Apparatus (10) for closing a puncture P in a wall of a vessel V includes an introducer sheath (12) and a housing (16) slidably disposed on an exterior surface of the sheath (12). A clip (62) is releasably disposed within a chamber of the housing (16), the clip (62) being expandable from a deployed configuration wherein tissue engaging portions of the clip (62) are directed inwards towards one another, and an expanded delivery configuration. An actuator (18) is attached to the housing (16) for deploying the clip (16) from the chamber. The clip (62) is preferably biased to the deployed configuration, and may be bioabsorbable. The housing (16) is advanced along the sheath (12) until the clip (62) pierces tissue surrounding a puncture P. The sheath (12) is withdrawn, causing the clip (62) to resiliently return to its deployed configuration and draw tissue together to close the puncture P.

L'invention concerne un appareil (10) destiné à refermer l'orifice d'une ponction P dans la paroi d'un vaisseau V, comprenant une gaine (12) d'introduction et un logement (16) placé de manière coulissante sur la surface extérieure de la gaine (12). Une agrafe (62) placée de manière amovible à l'intérieur d'une chambre du logement (16) est extensible, entre une configuration déployée dans laquelle les parties de l'agrafe (62) en prise avec le tissu sont dirigées vers l'intérieur, les unes vers les autres, et une configuration de pose à expansion. Un organe d'entraînement (18) destiné à déployer l'agrafe (16) de la chambre est fixé au logement (16). L'agrafe (62) est de préférence mise dans la configuration déployée, et peut être bio-absorbable. Le logement (16) est avancé le long de la gaine (12) jusqu'à ce que l'agrafe (62) vienne percer le tissu entourant l'orifice de la ponction P. La gaine (12) est retirée, ce qui permet de remettre l'agrafe (62) de manière élastique dans sa configuration déployée et de resserrer les tissus afin de refermer l'orifice de la ponction P.

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