Applicator and method for deploying a surgical fastener in...

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/03 (2006.01) A61B 17/068 (2006.01) A61B 17/04 (2006.01) A61B 17/064 (2006.01) A61B 17/30 (2006.01)

Patent

CA 2260134

An applicator (5) for deploying a fastener info tissue, the fastener including a head portion and a filament portion extending from the head portion, the applicator comprising an elongated hollow needle member (500) having a pointed distal end portion, a slotted portion for releasably retaining the head of the shaped fastener, and a first connector portion; and a chuck comprising a second connector portion engageable with the first connector portion for interconnecting the needle member and the chuck, a push rod (205) having a distal curl portion adapted to move lengthwise in the needle member, and an actuator (220) for moving the push rod in the needle member so as to eject the head portion of the fastener from the slotted portion of the needle member. A method for deploying the fastener in tissue is also disclosed.

La présente invention se rapporte à un applicateur (5) permettant de poser une agrafe sur un tissu, l'agrafe comportant une partie tête et une partie filament s'étendant depuis la partie tête. L'applicateur comprend un élément à aiguille creuse allongée (500) présentant une partie terminale distale pointue, une partie rainurée permettant de maintenir de manière libérable la tête de l'agrafe façonnée et une première partie de connexion. Un mandrin comprenant une seconde partie de connexion peut s'accoupler avec la première partie de connexion permettant de lier l'élément à aiguille et le mandrin, une tige de poussoir (205) pourvue d'une partie terminale distale conçue pour se déplacer en longueur dans l'élément à aiguille, et un actionneur (220) permettant de déplacer la tige poussoir dans l'élément à aiguille, de manière à éjecter la partie tête de l'agrafe depuis la partie rainurée de l'élément à aiguille. L'invention présente également un procédé permettant de poser l'agrafe sur les tissus.

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