System and method for sealing vascular penetrations with...

A - Human Necessities – 61 – M

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A61M 31/00 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2411832

Systems and method for sealing vascular penetrations rely on placement of a temporary barrier (26) on the posterior side of the penetration. Penetrations are then sealed by delivering a hemostatic gel to a region over the penetration, where the barrier (26) both inhibits loss of the gel and promotes back flow of blood into the gel. A combination of natural clotting factors in the blood and hemostatic agents in the gel promote rapid and effective sealing of the vascular penetration. Specific systems for performing the method include a barrier carrier (20) for temporary placement of the barrier (26) within the blood vessel (18) and a gel delivery tube (34) which may be positioned within a tissue tract or line of penetration simultaneously with the barrier carrier (20) to deliver the hemostatic gel.

Ces systèmes et ces procédés de scellement des perforations vasculaires comprennent la mise en place d'une barrière temporaire (26) sur le côté postérieur de la perforation. Les perforations sont ensuite scellées par l'application d'un gel hémostatique sur une région recouvrant la perforation. Cette barrière (26) empêche la disparition du gel tout en favorisant le reflux du sang dans le gel. La combinaison des facteurs de coagulation naturels présents dans le sang et des agents hémostatiques présents dans le gel favorise un scellement rapide et efficace de la perforation vasculaire. Des systèmes spécifiques destinés à la mise en oeuvre de ce procédé comprennent un dispositif porte-barrière (20) permettant l'installation temporaire de la barrière (26) dans le vaisseau sanguin (18) et un tube de distribution de gel (34) qui peut être positionné dans une voie tissulaire ou une ligne de pénétration, conjointement au dispositif porte-barrière (20), afin d'appliquer le gel hémostatique.

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