Suture passing apparatus and method

A - Human Necessities – 61 – B

Patent

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A61B 17/04 (2006.01)

Patent

CA 2759297

An endoscopic surgical instrument for passing a suture through tissue includes a first jaw member, a needle, and a capture feature actuable to grip and retain the suture after the suture has been passed through a tissue body. An actuation mechanism can both move the needle between retracted and extended positions, and move the capture feature between open and closed configurations, via a single actuation. The capture feature may be a trap door which is axially translatable relative to the first jaw member to overlap a portion of the first jaw member and trap a portion of the suture between the trap door and the overlapped portion. The first jaw member may be movable relative to a second jaw member to grasp a tissue body. The instrument can grasp a tissue body, pass the suture through the tissue, capture and retain the suture without being repositioned relative to the tissue.

La présente invention concerne un instrument chirurgical endoscopique destiné à faire passer une suture à travers un tissu. Ledit instrument comprend un premier élément de mâchoire, une aiguille, et un élément de capture actionnable pour saisir et retenir la suture après le passage de la suture à travers un corps de tissu. Un mécanisme d'actionnement peut à la fois déplacer l'aiguille entre une position rétractée et une position d'extension, et déplacer l'élément de capture entre une configuration ouverte et une configuration fermée, via un actionnement unique. L'élément de capture peut être une trappe translatable axialement par rapport au premier élément de mâchoire, afin de recouvrir une partie du premier élément de mâchoire et de retenir une partie de la suture entre la trappe et la partie recouverte. Le premier élément de mâchoire peut être amovible par rapport à un second élément de mâchoire, afin de saisir un corps de tissu. L'instrument peut saisir un corps de tissu, faire passer la suture à travers le tissu, et capturer et retenir la suture sans être repositionné par rapport au tissu.

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